WO2019024363A1 - Display device and display method - Google Patents

Display device and display method Download PDF

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Publication number
WO2019024363A1
WO2019024363A1 PCT/CN2017/114721 CN2017114721W WO2019024363A1 WO 2019024363 A1 WO2019024363 A1 WO 2019024363A1 CN 2017114721 W CN2017114721 W CN 2017114721W WO 2019024363 A1 WO2019024363 A1 WO 2019024363A1
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WIPO (PCT)
Prior art keywords
light
color
image
color gamut
gamut range
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PCT/CN2017/114721
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French (fr)
Chinese (zh)
Inventor
郭祖强
杜鹏
李屹
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深圳市光峰光电技术有限公司
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Publication of WO2019024363A1 publication Critical patent/WO2019024363A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display device and a display method.
  • the gamut generally refers to the spectral trajectory of visible light that can be seen by the human eye in nature.
  • the area of the region formed by the visible spectral trajectory is the maximum gamut area that the human eye can see visible light.
  • projectors, displays, etc. which are composed of different display devices, use R, G, and B three primary color display devices to perform color reproduction and reproduction on images.
  • the triangle formed by the three primary colors R, G, and B of the display device is called the color gamut that the device can display.
  • a wide color gamut source (such as R, G, B three-color pure laser source) can achieve the color gamut standard of Rec.2020, but wide color gamut light source is generally more expensive, such as red laser and green laser are expensive and electro-optic Conversion efficiency is low.
  • the present invention provides a display device and a display method capable of realizing a wider color gamut and having a lower light source cost.
  • a display device comprising:
  • a first light source for emitting a first light, the first light being used to modulate an image of a first color gamut
  • a second light source for emitting a second light, wherein the second light has a color gamut wider than the first light, and the second light is used to separately modulate or cooperate with the first light to modulate the first light An image outside the gamut;
  • An image data processing module configured to receive original image data of an image to be displayed and determine a color gamut range of the image to be displayed according to the original image data of the image to be displayed, the image to be displayed Raw image data is based on image data of a second color gamut range and includes grayscale values of respective colors of respective pixels, the second color gamut range covering the first color gamut range and having a range exceeding the first color gamut And the image data processing module converts the first partial data into a range based on the first color gamut if the original image data of the image to be displayed includes first portion of data in which a color coordinate of the pixel is located in a predetermined area And outputting the first sub-data and the second sub-data based on the second color gamut range, wherein the predetermined area is outside the first color gamut range and the inner side of the second color gamut range is not An area including the boundary line;
  • a light modulating device configured to modulate the first light according to the first sub-data to obtain first image light, and modulate the second light according to the second sub-data to obtain second image light;
  • An image synthesizing device for synthesizing the first image light and the second image light to display an image.
  • a display method characterized in that the display method comprises the following steps:
  • the second light having a color gamut wider than the first light, the second light being used for separately modulating or cooperating with the first light to modulate an image outside the first color gamut ;
  • the original image data of the image to be displayed includes the first partial data in which the color coordinates of the pixel are located in the predetermined region, converting the first partial data into the first sub data based on the first color gamut range and based on the first a second sub-data of a two-color range, wherein the second color gamut ranges cover the first color gamut range and has a portion that exceeds the first color gamut, the predetermined area being the first color gamut An area outside the range and inside the boundary line of the second color gamut range does not include the boundary line;
  • the first image light and the second image light are combined to display an image.
  • the display device and the display method of the present invention Compared with the prior art, in the display device and the display method of the present invention, not only the display of image data of a wide color gamut can be realized, but also the image data is based on image data of a second color gamut range and the image to be displayed is displayed.
  • the display device and the display method of the present invention can use the second light less, that is, reduce the use of the second light, thereby reducing the cost of the light source.
  • FIG. 1 is a block diagram showing the structure of a display device according to a first embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a color gamut range of the display device shown in FIG. 1.
  • Figure 3 is a schematic illustration of the auxiliary color range of the color gamut range shown in Figure 2.
  • FIG. 4 is a block diagram showing the structure of a display device according to a second embodiment of the present invention.
  • Fig. 5 is a timing chart of image modulation of the display device shown in Fig. 4.
  • FIG. 6 is a flow chart showing a display method of a display device of the present invention.
  • Second spatial light modulator 132 Second spatial light modulator 132
  • the present invention provides a display device and display method that can reduce the use of a wide color gamut light source.
  • a wide color gamut source not every frame of the image has very vivid colors. In other words, only a part of the image has a special green or special red bright color, or an image in one frame. Among them, only a part of the pixels are particularly bright in color, and this part of the image or pixel must use a wide color gamut light source (such as a pure laser light source) to restore and display the image. While other pixels are contained in a smaller gamut space, other sources (fluorescent sources with narrower gamut) or other sources can be used to restore the image together with the wide gamut source, which can be reduced. Wide color gamut light (such as laser) loss and cost.
  • a wide color gamut light source such as a pure laser light source
  • the two color sources of the wide color gamut and the narrow color gamut are used to dynamically adjust the color gamut, it is necessary to combine the video signal to determine the color gamut range of each frame image, and according to the color gamut range width of each frame image.
  • the gamut is modulated with light from two sources of narrow color gamut to produce image light.
  • the original video image signal is a single channel signal, so the original video image signal needs to be calculated and decomposed, and the dual channel signal is separately transmitted to the two spatial light modulators for the two color gamut illumination lights.
  • the two channel signals modulated or become sequential output are then transmitted to the same spatial light modulator, and then the two spatial light modulators respectively modulate the image and finally synthesize the restored image or a spatial light modulator sequentially modulates the image and finally synthesizes the restored image.
  • FIG. 1 is a block diagram showing the structure of a display device 100 of the present invention.
  • the display device 100 is mainly used as a projection device as an example.
  • the display device 100 includes a light source device 110, an image data processing module 120, a light modulation device 130, and an image synthesis device 140.
  • the light source device 110 includes a first light source 111, a second light source 112, a light source controller 113, The first illumination system 114, the second illumination system 115, and the optical relay system 116.
  • the first light source 111 is for emitting a first light, and the first light is used to modulate an image in the first color gamut range F1.
  • FIG. 2 is a schematic diagram of a color gamut range of the display device shown in FIG. 1.
  • the first color gamut range F1 is a color gamut range that the first light can display, and may be a DCI color gamut. Range, such as gamut range DCI-P3.
  • the domain range F2 can be the REC gamut range, such as the gamut range REC.2020.
  • the second light source is configured to emit a second light, and the second light is used to separately modulate or cooperate with the first light to modulate an image other than the first color gamut range F1, such as the second color gamut range An image of a partial color gamut range F exceeding the first color gamut range. It can be seen that the second light has a different color gamut range from the first light, and the color gamut of the second light is significantly wider than the gamut of the first light.
  • the second light source 112 has a wider color gamut than the first light source 111.
  • the first light includes fluorescence
  • the second light includes laser light.
  • the first light source 111 may include an excitation light source and a color wheel, the excitation light source emits excitation light, the color wheel is provided with a fluorescent material, and the color wheel receives the excitation.
  • the light emits the first light, and the first light has fluorescence.
  • the excitation light source may be a blue laser light source for emitting blue excitation light
  • the color wheel may include at least two segmented regions, wherein at least one segmented region is provided with the fluorescent material, and each The segmented region emits a color of light, and the at least two segmented regions can emit at least two colors of light, such as blue and yellow or blue, red, and green.
  • the yellow light comprises a component of red light and green light, that is, the first light may include three primary colors of red, green and blue.
  • the first light source 111 may also include a light emitting diode, the light emitting diode emits the first light, and the first light has fluorescence.
  • the first light may include at least Two colors of light, such as blue and yellow or blue, red and green.
  • the second light source 112 includes a laser that emits laser light as the second light.
  • the second light may include three primary colors, that is, the second light source may include three primary color lasers, such as a red laser, a green laser, and a blue laser, for emitting red laser, green laser, and blue laser.
  • the second light may include three primary color lasers, such as a red laser, a green laser, and a blue laser, for emitting red laser, green laser, and blue laser.
  • the first light may be further adjusted by the first illumination system 114 for uniformation, shaping, etc.
  • the light modulating device 130 is provided such that the light modulating device 130 can modulate the first light to generate corresponding image light according to the corresponding image data.
  • the second light may be further provided to the light modulating device 130 after being adjusted by the second illumination system 115, such that the light modulating device 130 may modulate the first image according to the corresponding image data.
  • the two lights produce corresponding image light. It can be understood that in the modified embodiment, the first light and the second light may be directly used by the light modulation device 130 without being adjusted by the first illumination system 114 and the second illumination system 115.
  • the light source controller 113 is further configured to receive a light source control signal, and control opening and closing of the first light source 111 and the second light source 112 based on the light source control signal, so that the light modulation device 130 uses a corresponding
  • the image data modulates the corresponding light to obtain image light.
  • the image data processing module 120 is configured to receive image data DATA (ie, original image data) to be displayed and determine a color gamut range of image data to be displayed.
  • image to be displayed is at least one image
  • the original image data may be original image data of one image, that is, one frame of original image data.
  • the original image data includes each image.
  • the grayscale value of each color of the pixel (such as the grayscale value of the three primary colors of red, green and blue of each pixel).
  • the original image data is image data having a wider color gamut range, such as original image data based on the second color gamut range F2.
  • the image data processing module 120 converts the first portion of data into a range based on the first color gamut a sub-data and a second sub-data based on the second gamut range, the image data processing module 120 further outputting the first sub-data and the second sub-data to the light modulating device, wherein
  • the predetermined area P1 is an area outside the first color gamut range F1 and the inner side of the boundary line of the second color gamut range F2 does not include the boundary line.
  • the image data processing module 120 converts the first part of data. And the first sub data and the second sub data are output to the light modulation device 130.
  • the image data processing module 120 converts the second partial data into based on the first The third sub-data of the gamut range is output to the light modulating device 130.
  • the image data processing module 120 converts the second partial data into a third sub-data based on the first color gamut range, and outputs the third sub-data to the light modulating device, at which time the original image
  • the data does not have the first part of data, and may also be regarded as the first part of data is 0. Accordingly, the first sub-data and the second sub-data may also be regarded as 0 or no data, and the image is
  • the data processing module 120 may not output any data as the first sub data or the second sub data or the output data 0 as the first sub data or the second sub data.
  • the image data processing The module 120 may divide the image data into the first partial data and the second partial data according to different color gamut ranges of color coordinates, and then convert the first partial data into the first a sub-data and the second sub-data, and converting the second partial data into a third sub-data, and outputting the first sub-data, the second sub-data, and the third sub-data to The light modulation device 130.
  • the second part of the data may be regarded as 0 or The original image data does not include the second partial data. Accordingly, the third sub-data may also be regarded as 0 or no data. At this time, the image data processing module 120 may not output any data as the third. The sub data or the output data 0 is used as the third sub data.
  • the image data processing module 120 If the original image data includes a third portion of data whose color coordinates of the pixel are located on a boundary line of the second color gamut range, the image data processing module 120 outputs the third partial data to the light modulation device 130. .
  • the color coordinates of the partial pixels of the image to be displayed are located in the predetermined region P1
  • the color coordinates of the partial pixels are located in the first color gamut
  • the color of the partial pixels is also The coordinates are located on a boundary line of the second color gamut range, that is, the image data includes the first partial data, the second partial data, and the third partial data.
  • the image data processing module 120 may divide the image data into the first partial data, the second partial data, and the third portion according to different color gamut ranges of color coordinates.
  • the three sub-data and the third partial data are output to the light modulation device 130.
  • the original image data if the color coordinates of all the pixels of the image to be displayed are on the boundary line of the second color gamut range, that is, the original image data is the third partial data.
  • the first and second partial data may be regarded as 0 or the image data does not include the first and second partial data, and correspondingly, the first, second, and third sub-data may also be Regardless of 0 or no data, the image data processing module 120 may not output any data as the first, second, and third sub-data or output data 0 as the first and second sub-data and Three sub-data, and outputting the third portion of data to the light modulating device 130.
  • the original image data may be divided into the first partial data in which the pixel color coordinates are located in the predetermined region, and the pixel color coordinates are located in the first color.
  • the second partial data of the domain range F1 and the pixel color coordinate are third partial data on a boundary line with the second color gamut range F2, wherein the first partial data, the second partial data, and the first Any part of the data of the three parts of the data may be 0, that is, the image data does not include the data located in the corresponding area, and the image data processing module may not perform corresponding data conversion on the part of the data whose data is 0, and may output 0 is used as the corresponding conversion data or partial data to the light modulation device.
  • the image data processing module 120 may calculate the tristimulus value of each pixel according to the grayscale value of each color of each pixel and the color coordinate of the second color gamut range to obtain the pixel. Color coordinates, and determining the color gamut range of the image to be displayed according to the color coordinates of each pixel.
  • the image data processing module 120 may calculate a tristimulus value of each pixel according to a grayscale value of each color of each pixel and a color coordinate of the second color gamut range F2, and then based on the three pixels of each pixel.
  • the first sub data, the second sub data, and the third sub data are calculated by the stimulus value and the color coordinates of the first color gamut range F1.
  • the first light includes three primary colors, and the first light can display the first color gamut range F1, and the first primary color of the first light has a color coordinate of x r , y r , the brightness is Y r , the color coordinates of the second primary color of the first light are x g , y g , and the brightness is Y g ; the color coordinates of the third primary color of the first light are x b , y b , the brightness is Y b .
  • the color coordinates of the three primary colors of the first light can be regarded as the color coordinates of the three vertices of the triangle of the first color gamut range F1 (ie, the color coordinates of the first color gamut range F1).
  • the brightness of the three primary colors of the first light can be considered as the maximum brightness of the primary colors that the color coordinates can achieve at the three vertices.
  • the color coordinates and the luminances x r , y r , and Y r of the first primary color of the first light may also be regarded as the lower right of the triangle of the first color gamut range F1 in the color gamut diagram shown in FIG. 2 .
  • the color coordinates of the vertices (such as 0.680, 0.320) and the maximum brightness that the first primary color of the first light can reach.
  • the color coordinates and the luminances x g , y g , and Y g of the second primary color of the first light may also be regarded as the color of the vertices above the triangle of the first color gamut range F1 in the color gamut diagram shown in FIG. 2 .
  • the maximum brightness that can be achieved by coordinates (eg, 0.265, 0.690) and the second primary color of the first light.
  • the color coordinates and the luminances x b , y b , and Y b of the third primary color of the first light may also be regarded as the lower left vertex of the triangle of the first color gamut range F1 in the color gamut diagram shown in FIG. 2 .
  • the color coordinates (such as 0.150, 0.060) and the maximum brightness that the third primary color of the first light can reach.
  • the second light includes three primary colors, and the second light can display the second color gamut range F2, and the color coordinate of the first primary color of the second light is x R , y R , the brightness is Y R , the color coordinates of the second primary color of the second light are x G , y G , and the brightness is Y G ; the color coordinates of the third primary color of the second light are x B , y B , the brightness is Y B .
  • the color coordinates of the three primary colors of the second light can be regarded as the color coordinates of the three vertices of the triangle of the second color gamut range F2 (ie, the color coordinates of the second color gamut range F2).
  • the brightness of the three primary colors of the second light can be regarded as the maximum brightness of the primary colors that the color coordinates can achieve at the three vertices.
  • the color coordinates and the luminances x R , y R and Y R of the first primary color of the second light may also be regarded as the lower right of the triangle of the second color gamut range F2 in the color gamut diagram shown in FIG. 2 .
  • the color coordinates of the vertices (such as 0.708, 0.282) and the maximum brightness that the first primary color of the second light can reach.
  • the color coordinates and the luminances x G , y G and Y G of the second primary color of the second light may also be regarded as the color of the apex above the triangle of the second color gamut range F2 in the color gamut diagram shown in FIG. 2 .
  • the color coordinates and the luminances x B , y B , and Y B of the third primary color of the second light may also be regarded as the lower left vertex of the triangle of the second color gamut range F2 in the color gamut diagram shown in FIG. 2 .
  • the maximum color brightness that can be achieved by the color coordinates (such as 0.131, 0.046) and the third primary color of the second light.
  • the white balance of the two light sources 111 and 112 is required to have consistent color coordinates and brightness.
  • the color coordinates of the white balance are x w , y w , and the brightness is Y w .
  • the color coordinates x w , y w of the white balance may select D65 (ie, the color coordinates are 0.3127, 0.329), and the brightness Y w varies depending on the brightness.
  • Equation 2 at the time of white balance, the tristimulus values X W , Y W , Z W of the pixel satisfy the following formula 3.
  • the tristimulus value at the time of white balance can also be calculated by using the maximum brightness and color coordinates of the three primary colors of the first light; using the second light
  • the tristimulus value at the time of white balance can also be calculated using the maximum brightness and color coordinates of the three primary colors of the second light. Therefore, according to the above principle and the formula 1-3, it can be known that when the white balance is attained, the tristimulus values X W , Y W , Z W of the pixel satisfy the following formula 4.
  • the tristimulus values X W , Y W , Z W of the pixels at the time of white balance also satisfy the following formula 4.
  • Equation 7 can be known by bringing the color coordinates and luminance values of the known parameters into Equation 1.
  • the luminances Y r , Y g , Y b of the three primary colors of the first light and the luminances Y R , Y G , Y B of the three primary colors of the second light satisfy the following formula 8 and formula 9, in order to be able to mutually Matching, such that when the first light is switched with the second light, the color of the image displayed by the display device does not cause a difference in color and brightness.
  • the image data processing module 120 mainly converts the first partial data into a first sub-data based on the first color gamut range and A second sub-data based on the second gamut range.
  • the manner in which the image data processing module 120 converts the first partial data into the first sub data based on the first color gamut range and the second sub data based on the second color gamut range is as follows:
  • the first color gamut range and the second color gamut range are both triangular regions, and the vertices of the three corresponding three colors of the first color gamut range are set to r, g, and b.
  • the three gamuts corresponding to the three color gamuts are set to R, G, and B, and the predetermined area includes a plurality of sub-areas, each of the sub-areas is a triangular area and three vertices of each sub-area are respectively a vertex of the first color gamut range and two vertices of the second color gamut range or two vertices of the first color gamut range and two vertices of the second color gamut range, and Two of the three vertices of each sub-region have the same color, and the grayscale values of the colors of any one of the first partial data are M1, M2, and M3, and the image data processing module 120 will The color coordinates of the pixel and the color coordinates of the three vertices N1, N2, and N3 of the
  • the grayscale values of the colors of any one of the pixels of the first partial data are M1, M2, and M3, and the three vertices N1, N2, and N3 are respectively
  • the vertices G, g, b that is, the color coordinates of the pixel are located in a triangular region formed by the vertices G, g, b, and the tristimulus values X, Y calculated according to the grayscale values M1, M2, and M3 , Z is as shown in Equation 10:
  • the M1, M2, and M3 are grayscale values of the red, green, and blue colors of the pixel, respectively, and the M represents the maximum grayscale value of the three primary colors, such as 255 grayscale. It can be understood that the M1 and M2 are And the value of M3 is in the range of [0, 255].
  • tristimulus values X, Y, Z calculated according to the gray scale values W1, W2, and W3 are as shown in Formula 11:
  • the M1, M2, and M3 are respectively converted grayscale values of the triangular regions N1, N2, and N3 (such as G, g, b) of the pixel based on the color coordinates thereof, wherein the grayscale value W1 Corresponding to the vertex N1 (such as G) and the same color, the grayscale value W2 corresponds to the vertex N2 (such as g) and the color is the same, and the grayscale value W3 corresponds to the vertex N3 (such as b) And the color is the same.
  • the image data processing module 120 may further calculate, according to the grayscale values (such as g, b) of the vertices of the first color gamut range, the first sub-data according to the corresponding vertices of the grayscale values W2, W3, and W3. And obtaining the second sub-data according to the gray-scale value W1 of the corresponding vertices of the gray-scale values W1, W2, and W3 being the vertices of the second color gamut (such as G).
  • the grayscale values such as g, b
  • the image data processing module 120 sets the grayscale value.
  • the corresponding vertices in W1, W2, and W3 are two grayscale values of the vertices of the first color gamut range as the two first converted grayscale values after the pixel conversion, and the image data processing module will
  • the grayscale value of one color other than the color represented by the first converted grayscale value is set to 0, and the two first converted grayscale values and the one grayscale value of 0 are used as the first subdata.
  • the image data processing module sets the grayscale values W1, W2, and W3
  • the corresponding vertices are a grayscale value of the vertices of the first color gamut range as a first converted grayscale value after the pixel conversion, and the image data processing module further comprises a first converted grayscale value representative
  • the grayscale value of the two colors other than the color is set to 0, and the one first converted grayscale value and the two grayscale values of 0 are used as the first subdata.
  • the image data processing module sets the grayscale values W1, W2, and W3
  • the corresponding vertex is a grayscale value of the vertices of the second color gamut range as a second converted grayscale value after the pixel conversion, and the color represented by the second converted grayscale value and the color represented by the corresponding vertex Similarly, the image data processing module further sets a grayscale value of two colors other than the color represented by the one second converted grayscale value to 0, and the one of the second converted grayscale values and the Two gray scale values of 0 are used as the second sub data.
  • the image data processing module sets the grayscale values W1, W2, and W3
  • the two corresponding gray scale values of the vertices of the second color gamut are the two second converted gray scale values after the pixel conversion, and the representative colors of the two second converted gray scale values and corresponding vertices
  • the representative color is the same
  • the image data processing module further sets a grayscale value of one color other than the color represented by the two second converted grayscale values to 0, and sets the two second converted grayscales Value and the one grayscale value 0 as The second sub-data.
  • the grayscale value (M1, M2, M3) signal value based on the second color gamut range F2 is converted into gray based on the triangular region formed by the G, g, and b
  • the order value (W1, W2, W3) (128, 76, 101)
  • the first sub-data (0, 76, 101) is obtained according to the gray-scale values 76, 101 corresponding to the vertices g, b of the first color gamut range F1.
  • obtaining the second sub-data (0, 128, 0) according to the grayscale value 128 corresponding to the vertex G of the second color gamut range F2.
  • FIG. 3 is an auxiliary explanatory diagram of the color gamut range shown in FIG. 2, and the vertices of the first color gamut range F1 and the second color gamut range F2 represent the same color.
  • the predetermined connection may be obtained by three quadrangles, wherein the vertices of any one of the quadrilaterals may be defined as A1, A2, A3, and A4, wherein the A1 and A2 are two vertices of the first gamut range A3 and A4 are two vertices of the second color gamut range, and the colors represented by A1 and A4 are the same, and the colors represented by A2 and A3 are the same.
  • FIG. 2 it is located in any quadrilateral region.
  • a color coordinate may belong to different triangular regions at the same time, for example, a triangular region belonging to A1, A4, and A3 is also located in a triangular region formed by A1, A4, and A2.
  • the A1 may be adopted.
  • the gray scale values W1, W2, and W3 calculated by the color coordinates of the three vertices of A4 and A3 may also be gray scale values W1, W2, and W3 calculated by the color coordinates of the three vertices A1, A4, and A2.
  • the grayscale values W1, W2, and W3 that can be calculated by the color coordinates of the three vertices A1, A4, and A2, that is, the vertices N1, N2, and N3 are selected from the A1.
  • A4, A2 the advantage of this selection is: select the vertices of the second gamut range F2 (such as A3 and A4) as little as possible, because the triangular area formed by the A1, A4, and A3 has the second color
  • the vertices (A3 and A4) of the domain range are more than the vertices (A4) of the second color gamut range of the triangular regions formed by the A1, A4, and A2, and therefore, the vertices N1, N2, and N3 are preferably selected from the A1. , A4, A2.
  • the three vertices A1, A2, and A3 are taken as the vertex. N1, N2 and N3. If the color coordinates of the pixel are located in the triangular region formed by A1, A4, and A3 and are also located in the triangular region formed by A1, A2, and A3, then the A1, A4, A3, or A1, A2, and A3 are three.
  • the vertices are the vertices N1, N2, and N3.
  • the three vertices A1, A4, A3, or A2, A3, and A4 are taken as The vertices N1, N2, and N3.
  • the image data processing module 120 mainly converts the second partial data into the first based on the first color gamut range Three sub-data. Specifically, the manner in which the image data processing module 120 converts the second partial data into the third sub data based on the first color gamut range is as follows:
  • the image data processing module 120 may be configured according to grayscale values of each pixel of the second partial data (such as grayscale values m1, m2, m3 of red, green and blue colors), the first color gamut range F1 and Calculating, according to the color coordinates of each vertex of the second color gamut range F2, the grayscale values (such as the grayscale values w1, w2, and w3 of the red, green, and blue colors) of the respective pixels according to the first color gamut range F1 The third sub-data based on the first color gamut range F1.
  • the image data processing module 120 may calculate a tristimulus value (X,) of each pixel according to a grayscale value of each pixel of the second partial data and a color coordinate of each vertex of the second color gamut range F2. Y, Z), using the tristimulus value (X, Y, Z) and the color coordinates of each vertex of the first color gamut range F1 to calculate the grayscale value of each pixel based on the first color gamut range F1 (eg, w1, w2, w3) to obtain the third sub-data.
  • a tristimulus value (X,) of each pixel according to a grayscale value of each pixel of the second partial data and a color coordinate of each vertex of the second color gamut range F2.
  • Y, Z using the tristimulus value (X, Y, Z) and the color coordinates of each vertex of the first color gamut range F1 to calculate the grayscale value of each pixel based on the first color gamut range F1 (e
  • the image data processing module 120 may perform the calculation of the tristimulus value of each pixel of the second partial data according to the above formula 10.
  • the tristimulus value of each pixel is unchanged to ensure accurate data reduction, thus Using the principle that the tristimulus value is unchanged, assuming that the grayscale values m1, m2, and m3 of one pixel of the image data are converted into gray scales based on the third subdata of the first color gamut range F1
  • the tristimulus values X, Y, and Z of the pixel are calculated by using the grayscale values w1, w2, and w3 of the converted pixel and the color coordinates of the first color gamut range F1. That is, the tristimulus values X, Y, Z are also Meets the following formula 12:
  • Equation 10 and Equation 12 Further introducing the known parameters into Equation 10 and Equation 12 can be used to know Equations 13 and 14:
  • the basis of the pixel can be calculated by combining the formula 8, the formula 9, the formula 13, and the formula 14.
  • the grayscale values of the three colors of the first color gamut range F1 are w1, w2, and w3, and the grayscale values of the three colors of the first color gamut range F1 of all pixels of the second partial data are w1. , w2, and w3 constitute the third sub-data.
  • the corresponding tristimulus value of the pixel (X, Y) , Z) (0.4186Y W , 0.5569Y W , 0.5228Y W )
  • Yw can be obtained according to the selected white balance data
  • the corresponding tristimulus values (X, Y, Z) can be obtained, and then the above formula is obtained.
  • the tristimulus value (X, Y, Z) of the pixel is obtained by calculation, and then according to the tristimulus value (X, Y, Z) and the color coordinate of the pixel.
  • the relationship formula (such as formula 1 or formula 2) can calculate the color coordinates x, y of the pixel, so that the first image number
  • the color gamut range of the first image data can be determined according to the color coordinates x, y of each pixel.
  • the image data processing module 120 may calculate the tristimulus values of the pixels of the first image data according to the above principle to learn the color coordinates of each pixel, and then determine the color gamut of the first image data according to the color coordinates of each pixel.
  • the range is outside the first color gamut range F1 or the first color gamut range F1.
  • the light modulating device 130 receives the data output by the image data processing module 120.
  • the light modulating device 130 is configured according to the first A sub-data modulates the first light to obtain a first image light, and modulates the second light according to the second sub-data to obtain a second image light. If the light modulating device receives the third sub-data, the light modulating device 130 modulates the first light according to the third sub-data to obtain a third image light. If the light modulating device 130 receives the third portion of data, the light modulating device 130 modulates the second light according to the third portion of data to obtain a fourth image light.
  • the light modulation device 130 may include a first spatial light modulator 131 and a second spatial light modulator 132.
  • the first spatial light modulator 131 and the second spatial light modulator 132 may be a DMD spatial light modulator, an LCD spatial light modulator, or an LCOS spatial light modulator, but are not limited thereto.
  • the first spatial light modulator 131 is configured to receive the first sub data, the third sub data, and receive the illumination of the first light, and further modulate according to the first sub data and the third sub data.
  • the first light produces corresponding image light.
  • the first spatial light modulator 131 may modulate the first light according to the first sub data in a first time period and according to the third sub data modulation in a second time period.
  • the first light wherein the first time period and the second time period do not overlap; in another embodiment, the first spatial light modulator 131 can simultaneously according to the first sub data, The third sub-data modulates the first light.
  • the first sub-data and the third sub-data may be synthesized into a first composite sub-data, so that the first spatial light modulator 131 is configured according to the The first composite sub-data modulates the first light.
  • the second spatial light modulator 132 is configured to receive the second sub-data, the third partial data, and receive the illumination of the second light, and further modulate according to the second sub-data and the third partial data.
  • the second light produces corresponding image light.
  • the second spatial light modulator 132 may modulate the second light according to the third sub data in a first time period and according to the third partial data modulation in a second time period.
  • the second light wherein the first time period and the second time period do not overlap; in another embodiment, the second spatial light modulator 132 may simultaneously depend on the second time Data, the third portion of data modulating the second light, specifically, the second sub-data and the third portion of data may be synthesized into second composite sub-data, such that the second spatial light modulator 132 The second light is modulated according to the second composite sub-data.
  • the light modulating device 130 further generates a first light source control signal and a second light source control signal according to the data output by the image data processing module 120, and the first and second light source control signals are provided to the light source controller 113. For controlling the first light source 111 and the second light source 112 to emit an opening and closing timing and/or intensity of the first light and the second light.
  • the first and second light source control signals may control the opening and closing of the first light source 111 and the second light source 112 by the light source controller 113 to control the first light and the first
  • the light emission timing of the two lights corresponds to the timing of the light modulation device 130 according to the corresponding data modulation image. It can be understood that, regarding the opening and closing timing and/or intensity of the first light source 111 and the second light source 112, the number of spatial light modulators and the modulation timing need to be matched, and specifically, there may be various control and implementation schemes. The specific opening control scheme will not be described again.
  • the image synthesizing device 140 is disposed adjacent to the light modulating device 130 for receiving image light emitted by the light modulating device 130 and synthesizing the received image light to display an image. It can be understood that the image synthesizing device 140 can include a projection lens.
  • the optical relay system 116 also recovers the second light that is not utilized from the light modulation device 130 such that the recovered second light is again provided to the The light modulation device 130 is utilized.
  • the second light has three colors (such as red, green and blue three primary colors), and the resolution of the image to be displayed is a*b, and if the image data of the image to be displayed needs to be modulated by using the second light
  • the number of pixels of the three colors is a*b
  • the brightness of the three colors of the second light provided by the second light source 112 to the light modulation device 130 is respectively the first standard brightness and the second standard.
  • the optical relay system 116 recovers the second light that is not utilized such that the recovered second light is provided to the light modulating device 130 for reuse, assuming that the light modulating device 130 recovers the second light.
  • the brightness of the three colors of the second light provided by the second light source 112 to the light modulation device 130 is respectively i/a*b of the first standard brightness, and the second standard brightness j/a*b and k/a*b of the third standard brightness.
  • the second spatial light modulator 132 is connected. Receiving the second light, the optical relay system 116 may recover the second light from the second spatial light modulator 132.
  • FIG. 4 is a block diagram showing the structure of a display device 200 according to a second embodiment of the present invention.
  • the display device 200 is substantially the same as the display device 100 of the first embodiment, that is, the description for the display device 100 can be basically used for the display device 200, the main difference between the two is: the light modulation device
  • the number of spatial light modulators 230 is different, so that the modulation timing at which the light modulation device 230 modulates the data output by the image data processing module 220 can be different.
  • the light modulating device 230 includes a spatial light modulator 231.
  • the spatial light modulator 231 receives the first light emitted by the first light source 211 and the second light source 212 via the same illumination system 214.
  • Two light, and the spatial light modulator 231 is time-divisionally (ie, at different time periods) according to data output by the image data processing module 220 (eg, first sub data, second sub data, third sub data, third Part of the data) modulates the corresponding light to produce corresponding image light.
  • data output by the image data processing module 220 eg, first sub data, second sub data, third sub data, third Part of the data
  • FIG. 5 is a timing diagram of an image modulation of the display device 200 shown in FIG.
  • the image data processing module 220 may sequentially output data corresponding to the second light (second sub data, third partial data, or composite data of the second sub data and the third partial data) and corresponding to the first light Data (first sub data, third sub data or composite data of the first sub data and the third sub data), such that the spatial light modulator 231 sequentially modulates the data according to the data corresponding to the second light Dimming light, and modulating the first light according to the data corresponding to the first light.
  • the spatial light modulator 231 may modulate the second light to generate corresponding image light according to data corresponding to the second light in a first time period (such as a first half period) of a frame picture modulation period, and in a The second period of the frame picture modulation period (such as the second half period) modulates the image light corresponding to the first light according to the data corresponding to the first light, and the image light generated by the two periods is combined by time series To form the final image.
  • a first time period such as a first half period
  • the second period of the frame picture modulation period (such as the second half period) modulates the image light corresponding to the first light according to the data corresponding to the first light
  • the image light generated by the two periods is combined by time series To form the final image.
  • FIG. 6 is a schematic flow chart of a display method of the display device of the present invention.
  • the display method can be completed using the display devices 100 and 200 of any of the first embodiment and the second embodiment.
  • the display method may include the following steps S1-S6.
  • step S1 first light and second light are provided, the first light is used to modulate an image in a first color gamut, and the second light is used to modulate an image outside the first color gamut.
  • the first light and the second light may be provided by the light source device 110.
  • the specific structure of the light source device 110 The specific requirements of the first light and the second light have been described above, and are not described herein again.
  • Step S2 receiving an original image data of an image to be displayed and determining a color gamut range of the image to be displayed according to the original image data of the image to be displayed, the image data is image data based on the second color gamut range and includes The grayscale value of each color of each pixel.
  • the step S2 may specifically include the following steps: calculating color coordinates of each pixel according to the grayscale value of each color of each pixel and the color coordinate of the second color gamut range, and according to the The color coordinates of each pixel determine the color gamut range of the first image data.
  • the step S2 may be performed by the image data processing module 120, and how the image data processing module 120 determines that the color gamut of the first image data has been previously applied to the image data processing module 120.
  • the description of the introduction is not repeated here.
  • Step S3 if the original image data of the image to be displayed includes the first partial data in which the pixel color coordinates are located in the predetermined area, converting the first partial data into the first sub-data based on the first color gamut range and the basis a second sub-data of a second color gamut range, wherein the second color gamut range covers the first color gamut range and has a portion exceeding the first color gamut range, the predetermined area being the An area outside the range of one color gamut and inside the boundary line of the second color gamut range does not include the boundary line.
  • Step S4 if the original image data of the image to be displayed includes the second partial data of the pixel color coordinate in the first color gamut, converting the second partial data into the first color gamut based on the first color gamut Three sub-data.
  • the pixels may be calculated based on the grayscale value of each pixel of the second partial data, the first color gamut range, and the color coordinates of each vertex of the second color gamut range.
  • the gray scale value of the first color gamut range is obtained to obtain the third sub data based on the first color gamut range.
  • the tristimulus value of each pixel may be calculated according to the grayscale value of each pixel of the second partial data and the color coordinate of each vertex of the second colorrange range, and then the The tristimulus value and the color coordinates of the vertices of the first color gamut range calculate a grayscale value of each pixel based on the first color gamut range to obtain the third sub data.
  • Step S5 If the original image data of the image to be displayed includes the third portion of data whose pixel color coordinates are located on the boundary line of the second color gamut range, the third partial data is output.
  • the steps S3, S4, and S5 may be performed by the image data processing module 120, and how the image data processing module 120 determines that the color gamut of the first image data is already in front.
  • the description of the introduction part of the image data processing module 120 will not be repeated here.
  • Step S6 modulating the first light according to the first sub-data to obtain the first image light, modulating the second light according to the second sub-data to obtain the second image light, and modulating the first light according to the third sub-data Obtaining a third image light; and modulating the second light according to the third portion of data to obtain a fourth image light.
  • the step S6 may be performed by the light modulating device 130, 230, and the light modulating device 130, 230 modulates the corresponding light according to the corresponding data to generate corresponding image light. Descriptions of the introductory parts of the devices 130, 230 will not be repeated here.
  • step S7 the image obtained by the modulation is light-combined to display an image.
  • the step S7 may be performed by using the image synthesizing modules 140 and 240, and details are not described herein again.
  • the display device and the display method of the present invention Compared with the prior art, in the display device and the display method of the present invention, not only the display of image data of a wide color gamut can be realized, but also the image data is based on image data of a second color gamut range and the image to be displayed is displayed.
  • the display device 100, 200 and the display method of the present invention can use the second light less, that is, reduce the use of the second light, thereby reducing the cost of the light source.
  • the first light-generated image light is modulated according to the third sub-data obtained by the converted color gamut range, since the first light is compared to the second The light is light of a narrower color gamut, so that when the color coordinates of each pixel of the second partial data are all within the first color gamut, the second light source 112 of a wider color gamut may not be used. Reduce the cost of the light source.
  • each pixel is obtained according to the grayscale value of each color of each pixel, the color coordinate of the second color gamut range F2, and the color coordinate of the first color gamut range F1.
  • the color and brightness of the overall picture of the first light and the second light are dynamically changed, so that the display device 100 has a better display effect.
  • the vertices of the second color gamut range F2 are selected as little as possible (such as A3 and A4) As the apex of the triangular region, the use of the laser light can be further reduced, and the effect of accurately reducing the image to be displayed can be achieved.

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Abstract

A display device (100), comprising a light source apparatus (110), an image data processing module (120), an optical modulation apparatus (130), and an image synthesizing apparatus (140). The light source apparatus (110) emits a first light and a second light, and the image data processing module (120) determines, according to original image data, a color domain range of an image to be displayed, the original image data being based on a second color domain range (F2); if the color coordinates of at least part of the pixels of the image to be displayed are located within a predetermined region (P1), the second color domain range (F2) covers a first color domain range (F1) and is provided with a portion that exceeds the first color domain range (F1); the predetermined region (P1) is a region beyond the first color domain range (F1) and is a region in which an inner side of a border line of the second color domain range (F2) does not comprise a border line; the image data processing module (120) converts original image data of the at least part of the pixels for which the color coordinates are located within the predetermined region (P1) to first sub-data based on the first color domain range (F1) and second sub-data based on the second color domain range (F2); the optical modulation apparatus (130) modulates the first light and the second light respectively according to the first sub-data and the second sub-data so as to obtain an image light, and the image synthesizing apparatus (140) synthesizes the image light to display an image.

Description

显示设备及显示方法Display device and display method 技术领域Technical field
本发明涉及显示技术领域，尤其涉及一种显示设备及显示方法。The present invention relates to the field of display technologies, and in particular, to a display device and a display method.
背景技术Background technique
色域通常指人眼在自然界能够看到的可见光的光谱轨迹，可见光谱轨迹所构成区域的面积即为人眼能够看到可见光的最大色域面积。目前，以不同显示器件构成的投影机、显示器等显示涉笔都是采用R、G、B三基色显示设备，对图像进行色彩还原再现。在一个指定的色度空间，如CIE1931xy色度空间，显示设备的R、G、B三基色所形成三角形称为该设备能够显示的色域，色域空间面积越大，则人们感觉呈现的色彩画面越鲜艳、越逼真，但这要求显示设备的光源能够提供更大色域。例如，采用宽色域光源(如R、G、B三色纯激光光源)可以实现Rec.2020的色域标准，但宽色域光源一般成本较高，如红激光与绿激光价格昂贵而且电光转换效率较低。The gamut generally refers to the spectral trajectory of visible light that can be seen by the human eye in nature. The area of the region formed by the visible spectral trajectory is the maximum gamut area that the human eye can see visible light. At present, projectors, displays, etc., which are composed of different display devices, use R, G, and B three primary color display devices to perform color reproduction and reproduction on images. In a specified chromaticity space, such as CIE1931xy chromaticity space, the triangle formed by the three primary colors R, G, and B of the display device is called the color gamut that the device can display. The larger the gamut space is, the more people feel the color. The brighter and more realistic the picture, but this requires the light source of the display device to provide a larger color gamut. For example, a wide color gamut source (such as R, G, B three-color pure laser source) can achieve the color gamut standard of Rec.2020, but wide color gamut light source is generally more expensive, such as red laser and green laser are expensive and electro-optic Conversion efficiency is low.
发明内容Summary of the invention
为解决现有宽色域显示设备的光源成本较高的技术问题，本发明提供一种可实现较宽色域且光源成本较低的显示设备与显示方法。In order to solve the technical problem that the light source cost of the existing wide color gamut display device is high, the present invention provides a display device and a display method capable of realizing a wider color gamut and having a lower light source cost.
一种显示设备，其包括：A display device comprising:
第一光源，用于发出第一光，所述第一光用于调制第一色域范围的图像；a first light source for emitting a first light, the first light being used to modulate an image of a first color gamut;
第二光源，用于发出第二光，所述第二光的色域范围较所述第一光宽，所述第二光用于单独调制或者配合所述第一光共同调制所述第一色域范围以外的图像；a second light source for emitting a second light, wherein the second light has a color gamut wider than the first light, and the second light is used to separately modulate or cooperate with the first light to modulate the first light An image outside the gamut;
图像数据处理模块，用于接收一幅待显示图像的原始图像数据并依据该幅待显示图像的原始图像数据判断该幅待显示图像的色域范围，该幅待显示图像 的原始图像数据是基于第二色域范围的图像数据且包括各像素各颜色的灰阶值，所述第二色域范围覆盖所述第一色域范围且具有超出所述第一色域范围的部分，若该幅待显示图像的原始图像数据包括像素的色坐标位于预定区域内的第一部分数据，所述图像数据处理模块将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据并输出，其中，所述预定区域为所述第一色域范围之外且所述第二色域范围的边界线内侧不包括所述边界线的区域；An image data processing module, configured to receive original image data of an image to be displayed and determine a color gamut range of the image to be displayed according to the original image data of the image to be displayed, the image to be displayed Raw image data is based on image data of a second color gamut range and includes grayscale values of respective colors of respective pixels, the second color gamut range covering the first color gamut range and having a range exceeding the first color gamut And the image data processing module converts the first partial data into a range based on the first color gamut if the original image data of the image to be displayed includes first portion of data in which a color coordinate of the pixel is located in a predetermined area And outputting the first sub-data and the second sub-data based on the second color gamut range, wherein the predetermined area is outside the first color gamut range and the inner side of the second color gamut range is not An area including the boundary line;
光调制装置，用于依据所述第一子数据调制所述第一光获得第一图像光，依据所述第二子数据调制所述第二光获得第二图像光；及a light modulating device, configured to modulate the first light according to the first sub-data to obtain first image light, and modulate the second light according to the second sub-data to obtain second image light;
图像合成装置，用于将所述第一图像光与所述第二图像光合成以显示图像。An image synthesizing device for synthesizing the first image light and the second image light to display an image.
一种显示方法，其特征在于，所述显示方法包括如下步骤：A display method, characterized in that the display method comprises the following steps:
提供第一光，所述第一光用于调制第一色域范围的图像；Providing a first light for modulating an image of a first color gamut;
提供第二光，所述第二光的色域范围较所述第一光宽，所述第二光用于单独调制或者配合所述第一光共同调制所述第一色域范围以外的图像；Providing a second light, the second light having a color gamut wider than the first light, the second light being used for separately modulating or cooperating with the first light to modulate an image outside the first color gamut ;
接收一幅待显示图像的原始图像数据并依据该幅待显示图像的原始图像数据判断该幅待显示图像的色域范围，所述图像数据是基于第二色域范围的图像数据且包括各像素各颜色的灰阶值，Receiving an original image data of an image to be displayed and determining a color gamut range of the image to be displayed according to the original image data of the image to be displayed, the image data being image data based on a second color gamut range and including each pixel Grayscale values for each color,
若该幅待显示图像的原始图像数据包括像素的色坐标位于预定区域内的第一部分数据，将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据，其中所述第二色域范围覆盖所述第一色域范围且具有超出所述第一色域范围的部分，所述预定区域为所述第一色域范围之外且所述第二色域范围的边界线内侧不包括所述边界线的区域；If the original image data of the image to be displayed includes the first partial data in which the color coordinates of the pixel are located in the predetermined region, converting the first partial data into the first sub data based on the first color gamut range and based on the first a second sub-data of a two-color range, wherein the second color gamut ranges cover the first color gamut range and has a portion that exceeds the first color gamut, the predetermined area being the first color gamut An area outside the range and inside the boundary line of the second color gamut range does not include the boundary line;
依据所述第一子数据调制第一光获得第一图像光，依据所述第二子数据调制第二光获得第二图像光，及And modulating the first light according to the first sub-data to obtain the first image light, and modulating the second light according to the second sub-data to obtain the second image light, and
将所述第一图像光与所述第二图像光合成以显示图像。The first image light and the second image light are combined to display an image.
与现有技术相比较，本发明显示设备与显示方法中不仅可以实现宽色域的图像数据的显示，并且在所述图像数据是基于第二色域范围的图像数据且该幅待显示图像的至少部分像素的色坐标位于预定区域内时，将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子 数据，从而依据所述第一子数据调制第一光获得第一图像光，依据所述第二子数据调制第二光获得第二图像光，使得所述第一部分数据的图像不仅可以被所述第一图像光与所述第二图像光准确的还原，而且由于所述第一部分数据利用了部分所述第一光及部分所述第二光共同调制还原，相较于完全使用第二光还原的技术方案来说，本发明的显示设备与显示方法可以较少的使用所述第二光，即减少对所述第二光的使用，进而降低光源成本。Compared with the prior art, in the display device and the display method of the present invention, not only the display of image data of a wide color gamut can be realized, but also the image data is based on image data of a second color gamut range and the image to be displayed is displayed. Converting the first partial data into a first sub-data based on the first color gamut range and a second sub-based based on the second color gamut range when the color coordinates of at least a portion of the pixels are within the predetermined region Data, thereby modulating the first light according to the first sub-data to obtain the first image light, and modulating the second light according to the second sub-data to obtain the second image light, so that the image of the first partial data can be not only described The first image light and the second image light are accurately reduced, and since the first portion of data utilizes a portion of the first light and a portion of the second light to be jointly modulated and restored, compared to completely using the second light reduction In terms of the technical solution, the display device and the display method of the present invention can use the second light less, that is, reduce the use of the second light, thereby reducing the cost of the light source.
附图说明DRAWINGS
图1是本发明第一实施方式的显示设备的方框结构示意图。1 is a block diagram showing the structure of a display device according to a first embodiment of the present invention.
图2是图1所示显示设备的色域范围示意图。2 is a schematic diagram of a color gamut range of the display device shown in FIG. 1.
图3是图2所示色域范围的辅助说明示意图。Figure 3 is a schematic illustration of the auxiliary color range of the color gamut range shown in Figure 2.
图4是本发明第二实施方式的显示设备的方框结构示意图。4 is a block diagram showing the structure of a display device according to a second embodiment of the present invention.
图5是图4所示显示设备的图像调制时序图。Fig. 5 is a timing chart of image modulation of the display device shown in Fig. 4.
图6是本发明显示设备的显示方法的流程示意图。6 is a flow chart showing a display method of a display device of the present invention.
主要元件符号说明Main component symbol description
显示设备          100、200 Display device 100, 200
光源装置          110 Light source device 110
图像数据处理模块  120、220Image data processing module 120, 220
光调制装置        130、230 Light modulation device 130, 230
第一光源          111、211 First light source 111, 211
第二光源          112、212 Second light source 112, 212
光源控制器        113Light source controller 113
照明***          114、115、214 Lighting system 114, 115, 214
光中继***        116 Optical relay system 116
第一空间光调制器  131First spatial light modulator 131
第二空间光调制器  132Second spatial light modulator 132
空间光调制器      231Spatial light modulator 231
第一色域范围      F1 First gamut range F1
第二色域范围     F2Second color gamut range F2
部分色域范围     FPartial gamut range F
预定区域         P1Reservation area P1
如下具体实施方式将结合上述附图进一步说明本发明。The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.
具体实施方式Detailed ways
基于以上采用宽色域光源(如R、G、B三色纯激光光源)可以实现Rec.2020的色域标准，但成本较高等技术问题(如红激光与绿激光价格昂贵而且电光转换效率较低)，本发明提供可以减少使用宽色域光源的显示设备与显示方法。Based on the above use of wide color gamut light sources (such as R, G, B three-color pure laser light source) can achieve the color gamut standard of Rec.2020, but the technical problems such as high cost and high cost (such as red laser and green laser are expensive and the electro-optical conversion efficiency is higher. Low), the present invention provides a display device and display method that can reduce the use of a wide color gamut light source.
通常情况下，在一部广色域片源中，并非每一帧图像都有十分鲜艳的色彩，换句话说，只有一部分的图像中有特别绿或特别红的鲜艳色彩，或者在一帧图像中，只有一部分像素的颜色特别鲜艳，这部分图像或像素必须采用广色域光源(如纯激光光源)才能对其进行图像还原与显示。而其他像素被包含在一个较小的色域空间中，此时使用其他光源(较窄色域的荧光光源)或者其他光源与广色域光源共同对其进行图像还原，此举可以起到降低宽色域光(如激光)损耗以及成本的作用。Usually, in a wide color gamut source, not every frame of the image has very vivid colors. In other words, only a part of the image has a special green or special red bright color, or an image in one frame. Among them, only a part of the pixels are particularly bright in color, and this part of the image or pixel must use a wide color gamut light source (such as a pure laser light source) to restore and display the image. While other pixels are contained in a smaller gamut space, other sources (fluorescent sources with narrower gamut) or other sources can be used to restore the image together with the wide gamut source, which can be reduced. Wide color gamut light (such as laser) loss and cost.
然而，当使用宽色域与窄色域的两种光源动态调节色域时，就需要结合视频信号对每一帧图像的色域范围进行判断，并依据每一帧图像的色域范围对宽色域与窄色域的两种光源的光进行调制以产生图像光。当动态调节色域时，原视频图像信号为单通道信号，因此需要对原视频图像信号进行计算和分解，变为双通道信号分别传输给两个空间光调制器对两种色域照明光进行调制或者变成顺序输出的两个通道信号再传给同一个空间光调制器，进而两个空间光调制器分别调制图像并最终合成还原图像或者一个空间光调制器顺序调制图像最终时序合成还原图像。以下结合附图对本发明显示设备与显示方法的具体结构及原理进行详细说明。However, when the two color sources of the wide color gamut and the narrow color gamut are used to dynamically adjust the color gamut, it is necessary to combine the video signal to determine the color gamut range of each frame image, and according to the color gamut range width of each frame image. The gamut is modulated with light from two sources of narrow color gamut to produce image light. When the color gamut is dynamically adjusted, the original video image signal is a single channel signal, so the original video image signal needs to be calculated and decomposed, and the dual channel signal is separately transmitted to the two spatial light modulators for the two color gamut illumination lights. The two channel signals modulated or become sequential output are then transmitted to the same spatial light modulator, and then the two spatial light modulators respectively modulate the image and finally synthesize the restored image or a spatial light modulator sequentially modulates the image and finally synthesizes the restored image. . The specific structure and principle of the display device and the display method of the present invention will be described in detail below with reference to the accompanying drawings.
请参阅图1，图1是本发明显示设备100的方框结构示意图。本实施方式中，主要以所述显示设备100为投影设备为例进行说明。具体地，所述显示设备100包括光源装置110、图像数据处理模块120、光调制装置130及图像合成装置140。所述光源装置110包括第一光源111、第二光源112、光源控制器113、 第一照明***114、第二照明***115、光中继***116。Please refer to FIG. 1. FIG. 1 is a block diagram showing the structure of a display device 100 of the present invention. In the present embodiment, the display device 100 is mainly used as a projection device as an example. Specifically, the display device 100 includes a light source device 110, an image data processing module 120, a light modulation device 130, and an image synthesis device 140. The light source device 110 includes a first light source 111, a second light source 112, a light source controller 113, The first illumination system 114, the second illumination system 115, and the optical relay system 116.
所述第一光源111用于发出第一光，所述第一光用于调制第一色域范围F1内的图像。具体地，请参阅图2，图2是图1所示显示设备的色域范围示意图，所述第一色域范围F1为所述第一光可以展示的色域范围，其可以是DCI色域范围，如色域范围DCI-P3。定义第二色域范围F2，所述第二色域范围F2覆盖所述第一色域范围F1且具有超出所述第一色域范围F1的部分色域范围F，其中，所述第二色域范围F2可以为REC色域范围，如色域范围REC.2020。所述第二光源用于发出第二光，所述第二光用于单独调制或者配合所述第一光共同调制所述第一色域范围F1以外的图像，如所述第二色域范围超过所述第一色域范围的部分色域范围F的图像。可见，所述第二光与所述第一光具有不同的色域范围，所述第二光的色域范围明显宽于所述第一光的色域范围。The first light source 111 is for emitting a first light, and the first light is used to modulate an image in the first color gamut range F1. Specifically, please refer to FIG. 2. FIG. 2 is a schematic diagram of a color gamut range of the display device shown in FIG. 1. The first color gamut range F1 is a color gamut range that the first light can display, and may be a DCI color gamut. Range, such as gamut range DCI-P3. Defining a second color gamut range F2 that covers the first color gamut range F1 and has a partial color gamut range F that exceeds the first color gamut range F1, wherein the second color The domain range F2 can be the REC gamut range, such as the gamut range REC.2020. The second light source is configured to emit a second light, and the second light is used to separately modulate or cooperate with the first light to modulate an image other than the first color gamut range F1, such as the second color gamut range An image of a partial color gamut range F exceeding the first color gamut range. It can be seen that the second light has a different color gamut range from the first light, and the color gamut of the second light is significantly wider than the gamut of the first light.
本实施方式中，所述第二光源112相较于所述第一光源111的色域范围较宽，具体地，所述第一光包括荧光，所述第二光包括激光。In this embodiment, the second light source 112 has a wider color gamut than the first light source 111. Specifically, the first light includes fluorescence, and the second light includes laser light.
具体地，在一种实施例中，所述第一光源111可以包括激发光源及色轮，所述激发光源发出激发光，所述色轮上设置有荧光材料，所述色轮接收所述激发光并发出所述第一光，进而所述第一光具有荧光。所述激发光源可以为蓝色激光光源，用于发出蓝色激发光，所述色轮上可以包括至少两个分段区域，其中至少一个分段区域上设置有所述荧光材料，且每个分段区域射出一种颜色光，进而所述至少两个分段区域可以射出至少两种颜色光，如蓝色光与黄色光或者蓝色光、红色光与绿色光。其中所述黄色光包含红色光与绿色光的成分，即所述第一光可以包括红绿蓝三种基色。Specifically, in an embodiment, the first light source 111 may include an excitation light source and a color wheel, the excitation light source emits excitation light, the color wheel is provided with a fluorescent material, and the color wheel receives the excitation. The light emits the first light, and the first light has fluorescence. The excitation light source may be a blue laser light source for emitting blue excitation light, and the color wheel may include at least two segmented regions, wherein at least one segmented region is provided with the fluorescent material, and each The segmented region emits a color of light, and the at least two segmented regions can emit at least two colors of light, such as blue and yellow or blue, red, and green. Wherein the yellow light comprises a component of red light and green light, that is, the first light may include three primary colors of red, green and blue.
在一种变更实施例中，所述第一光源111也可以包括发光二极管，所述发光二极管发出所述第一光，所述第一光具有荧光，具体地，所述第一光可以包括至少两种颜色光，如蓝色光与黄色光或者蓝色光、红色光与绿色光。In a modified embodiment, the first light source 111 may also include a light emitting diode, the light emitting diode emits the first light, and the first light has fluorescence. Specifically, the first light may include at least Two colors of light, such as blue and yellow or blue, red and green.
本实施方式中，所述第二光源112包括激光器，所述激光器发出激光作为所述第二光。具体地，所述第二光可以包含三基色，即所述第二光源可以包括三基色的激光器，如红色激光器、绿色激光器及蓝色激光器，用于发出红色激光、绿色激光及蓝色激光作为所述第二光。In this embodiment, the second light source 112 includes a laser that emits laser light as the second light. Specifically, the second light may include three primary colors, that is, the second light source may include three primary color lasers, such as a red laser, a green laser, and a blue laser, for emitting red laser, green laser, and blue laser. The second light.
所述第一光可以进一步经所述第一照明***114进行匀光、整形等调整后 被提供至所述光调制装置130，使得所述光调制装置130可以依据相应的图像数据调制所述第一光产生对应的图像光。所述第二光可以进一步经所述第二照明***115进行匀光、整形等调整后被提供至所述光调制装置130，使得所述光调制装置130可以依据相应的图像数据调制所述第二光产生对应的图像光。可以理解，在变更实施方式中，所述第一光及所述第二光也可以不经由所述第一照明***114及所述第二照明***115调整而直接被所述光调制装置130。The first light may be further adjusted by the first illumination system 114 for uniformation, shaping, etc. The light modulating device 130 is provided such that the light modulating device 130 can modulate the first light to generate corresponding image light according to the corresponding image data. The second light may be further provided to the light modulating device 130 after being adjusted by the second illumination system 115, such that the light modulating device 130 may modulate the first image according to the corresponding image data. The two lights produce corresponding image light. It can be understood that in the modified embodiment, the first light and the second light may be directly used by the light modulation device 130 without being adjusted by the first illumination system 114 and the second illumination system 115.
所述光源控制器113还用于接收光源控制信号，并基于所述光源控制信号控制所述第一光源111与所述第二光源112的开启与关闭，以使得所述光调制装置130使用对应的图像数据调制对应的光来获得图像光。The light source controller 113 is further configured to receive a light source control signal, and control opening and closing of the first light source 111 and the second light source 112 based on the light source control signal, so that the light modulation device 130 uses a corresponding The image data modulates the corresponding light to obtain image light.
所述图像数据处理模块120用于接收待显示的图像数据DATA(即原始图像数据)并判断待显示的图像数据的色域范围。可以理解，所述待显示图像至少为一幅图像，所述原始图像数据可以为一幅图像的原始图像数据，即一帧原始图像数据，具体地，所述原始图像数据包括一幅图像的各像素各颜色的灰阶值(如各像素红绿蓝三基色的灰阶值)。本实施方式中，所述原始图像数据是具有较宽色域范围的图像数据，如基于所述第二色域范围F2的原始图像数据。The image data processing module 120 is configured to receive image data DATA (ie, original image data) to be displayed and determine a color gamut range of image data to be displayed. It can be understood that the image to be displayed is at least one image, and the original image data may be original image data of one image, that is, one frame of original image data. Specifically, the original image data includes each image. The grayscale value of each color of the pixel (such as the grayscale value of the three primary colors of red, green and blue of each pixel). In this embodiment, the original image data is image data having a wider color gamut range, such as original image data based on the second color gamut range F2.
若该幅待显示图像的原始图像数据包括像素的色坐标位于预定区域P1内的第一部分数据，所述图像数据处理模块120将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据，所述图像数据处理模块120还输出所述第一子数据与所述第二子数据至所述光调制装置，其中，所述预定区域P1为所述第一色域范围F1之外且所述第二色域范围F2的边界线内侧不包括所述边界线的区域。可以理解，若该幅待显示图像的所有像素的色坐标位于预定区域P1内时，即所述原始图像数据均为所述第一部分数据，所述图像数据处理模块120将所述第一部分数据转换为所述第一子数据及所述第二子数据，并将所述第一子数据与所述第二子数据输出至所述光调制装置130。If the original image data of the image to be displayed includes the first portion of data in which the color coordinates of the pixel are located in the predetermined region P1, the image data processing module 120 converts the first portion of data into a range based on the first color gamut a sub-data and a second sub-data based on the second gamut range, the image data processing module 120 further outputting the first sub-data and the second sub-data to the light modulating device, wherein The predetermined area P1 is an area outside the first color gamut range F1 and the inner side of the boundary line of the second color gamut range F2 does not include the boundary line. It can be understood that if the color coordinates of all pixels of the image to be displayed are located in the predetermined area P1, that is, the original image data is the first part of data, the image data processing module 120 converts the first part of data. And the first sub data and the second sub data are output to the light modulation device 130.
进一步地，若所述原始图像数据包括像素的色坐标位于所述第一色域范围内的第二部分数据，所述图像数据处理模块120将所述第二部分数据转换为基于所述第一色域范围的第三子数据，并将所述第三子数据输出至所述光调制装置130。 Further, if the original image data includes the second partial data in which the color coordinates of the pixel are located in the first color gamut, the image data processing module 120 converts the second partial data into based on the first The third sub-data of the gamut range is output to the light modulating device 130.
可以理解，若所述原始图像数据中，该幅待显示图像的全部像素的色坐标位于所述第一色域范围内，即所述原始图像数据均为所述第二部分数据，则所述图像数据处理模块120将所述第二部分数据转换为基于所述第一色域范围的第三子数据，并将所述第三子数据输出至所述光调制装置，此时所述原始图像数据没有所述第一部分数据，也可以视为所述第一部分数据为0，相应地，所述第一子数据与所述第二子数据也可以视为0或者没有数据，此时所述图像数据处理模块120可以不输出任何数据作为所述第一子数据或所述第二子数据或者输出数据0作为所述第一子数据或者所述第二子数据。It can be understood that, if the color coordinates of all pixels of the image to be displayed are located in the first color gamut, that is, the original image data is the second partial data, The image data processing module 120 converts the second partial data into a third sub-data based on the first color gamut range, and outputs the third sub-data to the light modulating device, at which time the original image The data does not have the first part of data, and may also be regarded as the first part of data is 0. Accordingly, the first sub-data and the second sub-data may also be regarded as 0 or no data, and the image is The data processing module 120 may not output any data as the first sub data or the second sub data or the output data 0 as the first sub data or the second sub data.
可以理解，若所述原始图像数据包括部分像素的色坐标位于预定区域P1内的第一部分数据、部分像素的色坐标位于所述第一色域范围内的第二部分数据，所述图像数据处理模块120可以将所述原始图像数据依据色坐标所在色域范围的不同将所述图像数据分割为所述第一部分数据及所述第二部分数据，再将所述第一部分数据转换为所述第一子数据与所述第二子数据，以及将所述第二部分数据转换为第三子数据，并将所述第一子数据、所述第二子数据及所述第三子数据输出至所述光调制装置130。It can be understood that if the original image data includes the first partial data in which the color coordinates of the partial pixels are located in the predetermined region P1 and the second partial data in which the color coordinates of the partial pixels are located in the first color gamut, the image data processing The module 120 may divide the image data into the first partial data and the second partial data according to different color gamut ranges of color coordinates, and then convert the first partial data into the first a sub-data and the second sub-data, and converting the second partial data into a third sub-data, and outputting the first sub-data, the second sub-data, and the third sub-data to The light modulation device 130.
可以理解，若该幅待显示图像的所有像素的色坐标位于预定区域P1内时，即所述原始图像数据均为所述第一部分数据，也可以视为所述第二部分数据为0或者所述原始图像数据不包括所述第二部分数据，相应地，所述第三子数据也可以视为0或者没有数据，此时所述图像数据处理模块120可以不输出任何数据作为所述第三子数据或者输出数据0作为所述第三子数据。It can be understood that if the color coordinates of all the pixels of the image to be displayed are located in the predetermined area P1, that is, the original image data is the first part of data, the second part of the data may be regarded as 0 or The original image data does not include the second partial data. Accordingly, the third sub-data may also be regarded as 0 or no data. At this time, the image data processing module 120 may not output any data as the third. The sub data or the output data 0 is used as the third sub data.
若所述原始图像数据包括像素的色坐标位于所述第二色域范围的边界线上的第三部分数据，所述图像数据处理模块120输出所述第三部分数据至所述光调制装置130。If the original image data includes a third portion of data whose color coordinates of the pixel are located on a boundary line of the second color gamut range, the image data processing module 120 outputs the third partial data to the light modulation device 130. .
可以理解，若所述原始图像数据中，该幅待显示图像的部分像素的色坐标位于预定区域P1内、部分像素的色坐标位于所述第一色域范围内、且还有部分像素的色坐标位于所述第二色域范围的边界线上，即所述图像数据包括所述第一部分数据、所述第二部分数据及所述第三部分数据。具体地，所述图像数据处理模块120可以将所述图像数据依据色坐标所在色域范围的不同将所述图像数据分割为所述第一部分数据、所述第二部分数据及所述第三部分数据，再将 所述第一部分数据转换为所述第一子数据与所述第二子数据，将所述第二部分数据转换为第三子数据，以及将所述第一子数据、第二子数据、第三子数据及第三部分数据输出至所述光调制装置130。It can be understood that, in the original image data, the color coordinates of the partial pixels of the image to be displayed are located in the predetermined region P1, the color coordinates of the partial pixels are located in the first color gamut, and the color of the partial pixels is also The coordinates are located on a boundary line of the second color gamut range, that is, the image data includes the first partial data, the second partial data, and the third partial data. Specifically, the image data processing module 120 may divide the image data into the first partial data, the second partial data, and the third portion according to different color gamut ranges of color coordinates. Data, will Converting the first partial data into the first sub data and the second sub data, converting the second partial data into a third sub data, and converting the first sub data, the second sub data, and the first The three sub-data and the third partial data are output to the light modulation device 130.
可以理解，若所述原始图像数据中，若该幅待显示图像的全部像素的色坐标位于所述第二色域范围的边界线上，即所述原始图像数据均为所述第三部分数据，也可以视为所述第一及第二部分数据为0或者所述图像数据不包括所述第一及第二部分数据，相应地，所述第一、第二及第三子数据也可以视为0或者没有数据，此时所述图像数据处理模块120可以不输出任何数据作为所述第一、第二及第三子数据或者输出数据0作为所述第一、第二子数据及第三子数据，以及输出所述第三部分数据至所述光调制装置130。It can be understood that, in the original image data, if the color coordinates of all the pixels of the image to be displayed are on the boundary line of the second color gamut range, that is, the original image data is the third partial data. The first and second partial data may be regarded as 0 or the image data does not include the first and second partial data, and correspondingly, the first, second, and third sub-data may also be Regardless of 0 or no data, the image data processing module 120 may not output any data as the first, second, and third sub-data or output data 0 as the first and second sub-data and Three sub-data, and outputting the third portion of data to the light modulating device 130.
当然，换个角度说，依据所述图像数据色域范围的不同，所述原始图像数据可以被分为像素色坐标位于所述预定区域的所述第一部分数据、像素色坐标位于所述第一色域范围F1的第二部分数据及像素色坐标为与所述第二色域范围F2的边界线上的第三部分数据，其中，所述第一部分数据、所述第二部分数据及所述第三部分数据中任意一部分数据可以为0，即代表所述图像数据不包括位于相应区域的数据，此时所述图像数据处理模块可以不对数据为0的部分数据进行相应的数据转换，并且可以输出0作为相应的转换数据或部分数据至所述光调制装置。Of course, in other words, according to the range of the color gamut of the image data, the original image data may be divided into the first partial data in which the pixel color coordinates are located in the predetermined region, and the pixel color coordinates are located in the first color. The second partial data of the domain range F1 and the pixel color coordinate are third partial data on a boundary line with the second color gamut range F2, wherein the first partial data, the second partial data, and the first Any part of the data of the three parts of the data may be 0, that is, the image data does not include the data located in the corresponding area, and the image data processing module may not perform corresponding data conversion on the part of the data whose data is 0, and may output 0 is used as the corresponding conversion data or partial data to the light modulation device.
具体地，本实施方式中，所述图像数据处理模块120可以依据所述各像素各颜色的灰阶值及所述第二色域范围的色坐标计算各像素的三刺激值从而获知各像素的色坐标，并依据所述各像素的色坐标判断该幅待显示图像的色域范围。Specifically, in the embodiment, the image data processing module 120 may calculate the tristimulus value of each pixel according to the grayscale value of each color of each pixel and the color coordinate of the second color gamut range to obtain the pixel. Color coordinates, and determining the color gamut range of the image to be displayed according to the color coordinates of each pixel.
进一步地，所述图像数据处理模块120可以依据所述各像素各颜色的灰阶值及所述第二色域范围F2的色坐标计算各像素的三刺激值，再基于所述各像素的三刺激值及所述第一色域范围F1的色坐标计算所述第一子数据、第二子数据及所述第三子数据。Further, the image data processing module 120 may calculate a tristimulus value of each pixel according to a grayscale value of each color of each pixel and a color coordinate of the second color gamut range F2, and then based on the three pixels of each pixel. The first sub data, the second sub data, and the third sub data are calculated by the stimulus value and the color coordinates of the first color gamut range F1.
在一种实施例中，所述第一光包括三基色，且所述第一光刚好可以展示所述第一色域范围F1，设所述第一光的第一基色的色坐标为xr、yr，亮度为Yr，所述第一光的第二基色的色坐标为xg、yg，亮度为Yg；所述第一光的第三基色的色坐标为xb、yb，亮度为Yb。可以理解，所述第一光的三基色的色坐标可以视为 所述第一色域范围F1的三角形的三个顶点的色坐标(即所述第一色域范围F1的色坐标)，所述第一光的三基色的亮度可以视为色坐标在所述三个顶点时可以达到的所述基色的最大亮度。具体地，所述第一光的第一基色的色坐标及亮度xr、yr及Yr也可以视为图2所示色域图中所述第一色域范围F1的三角形的右下方的顶点的色坐标(如0.680、0.320)及所述第一光的第一基色可以达到的最大亮度。所述第一光的第二基色的色坐标及亮度xg、yg及Yg也可以视为图2所示色域图中所述第一色域范围F1的三角形的上方的顶点的色坐标(如0.265、0.690)及所述第一光的第二基色可以达到的最大亮度。所述第一光的第三基色的色坐标及亮度xb、yb，及Yb也可以视为图2所示色域图中所述第一色域范围F1的三角形的左下方的顶点的色坐标(如0.150、0.060)及所述第一光的第三基色可以达到的最大亮度。In one embodiment, the first light includes three primary colors, and the first light can display the first color gamut range F1, and the first primary color of the first light has a color coordinate of x r , y r , the brightness is Y r , the color coordinates of the second primary color of the first light are x g , y g , and the brightness is Y g ; the color coordinates of the third primary color of the first light are x b , y b , the brightness is Y b . It can be understood that the color coordinates of the three primary colors of the first light can be regarded as the color coordinates of the three vertices of the triangle of the first color gamut range F1 (ie, the color coordinates of the first color gamut range F1). The brightness of the three primary colors of the first light can be considered as the maximum brightness of the primary colors that the color coordinates can achieve at the three vertices. Specifically, the color coordinates and the luminances x r , y r , and Y r of the first primary color of the first light may also be regarded as the lower right of the triangle of the first color gamut range F1 in the color gamut diagram shown in FIG. 2 . The color coordinates of the vertices (such as 0.680, 0.320) and the maximum brightness that the first primary color of the first light can reach. The color coordinates and the luminances x g , y g , and Y g of the second primary color of the first light may also be regarded as the color of the vertices above the triangle of the first color gamut range F1 in the color gamut diagram shown in FIG. 2 . The maximum brightness that can be achieved by coordinates (eg, 0.265, 0.690) and the second primary color of the first light. The color coordinates and the luminances x b , y b , and Y b of the third primary color of the first light may also be regarded as the lower left vertex of the triangle of the first color gamut range F1 in the color gamut diagram shown in FIG. 2 . The color coordinates (such as 0.150, 0.060) and the maximum brightness that the third primary color of the first light can reach.
在一种实施例中，所述第二光包括三基色，且所述第二光刚好可以展示所述第二色域范围F2，设所述第二光的第一基色的色坐标为xR、yR，亮度为YR，所述第二光的第二基色的色坐标为xG、yG，亮度为YG；所述第二光的第三基色的色坐标为xB、yB，亮度为YB。可以理解，所述第二光的三基色的色坐标可以视为所述第二色域范围F2的三角形的三个顶点的色坐标(即所述第二色域范围F2的色坐标)，所述第二光的三基色的亮度可以视为色坐标在所述三个顶点时可以达到的所述基色的最大亮度。具体地，所述第二光的第一基色的色坐标及亮度xR、yR及YR也可以视为图2所示色域图中所述第二色域范围F2的三角形的右下方的顶点的色坐标(如0.708、0.282)及所述第二光的第一基色可以达到的最大亮度。所述第二光的第二基色的色坐标及亮度xG、yG及YG也可以视为图2所示色域图中所述第二色域范围F2的三角形的上方的顶点的色坐标(如0.170、0.797)及所述第二光的第二基色可以达到的最大亮度。所述第二光的第三基色的色坐标及亮度xB、yB，及YB也可以视为图2所示色域图中所述第二色域范围F2的三角形的左下方的顶点的色坐标(如0.131、0.046)及所述第二光的第三基色可以达到的最大亮度。In one embodiment, the second light includes three primary colors, and the second light can display the second color gamut range F2, and the color coordinate of the first primary color of the second light is x R , y R , the brightness is Y R , the color coordinates of the second primary color of the second light are x G , y G , and the brightness is Y G ; the color coordinates of the third primary color of the second light are x B , y B , the brightness is Y B . It can be understood that the color coordinates of the three primary colors of the second light can be regarded as the color coordinates of the three vertices of the triangle of the second color gamut range F2 (ie, the color coordinates of the second color gamut range F2). The brightness of the three primary colors of the second light can be regarded as the maximum brightness of the primary colors that the color coordinates can achieve at the three vertices. Specifically, the color coordinates and the luminances x R , y R and Y R of the first primary color of the second light may also be regarded as the lower right of the triangle of the second color gamut range F2 in the color gamut diagram shown in FIG. 2 . The color coordinates of the vertices (such as 0.708, 0.282) and the maximum brightness that the first primary color of the second light can reach. The color coordinates and the luminances x G , y G and Y G of the second primary color of the second light may also be regarded as the color of the apex above the triangle of the second color gamut range F2 in the color gamut diagram shown in FIG. 2 . The maximum brightness that can be achieved by coordinates (eg, 0.170, 0.797) and the second primary color of the second light. The color coordinates and the luminances x B , y B , and Y B of the third primary color of the second light may also be regarded as the lower left vertex of the triangle of the second color gamut range F2 in the color gamut diagram shown in FIG. 2 . The maximum color brightness that can be achieved by the color coordinates (such as 0.131, 0.046) and the third primary color of the second light.
为了使得所述第一光源111与所述第二光源112在动态转换的时候保持整体画面的颜色及亮度一致性，要求上述两个光源111、112的白平衡要有一致的色坐标及亮度，例如，假设白平衡的色坐标为xw、yw、亮度为Yw，具体地，所述 白平衡的色坐标xw、yw可以选择D65(即色坐标为0.3127、0.329)，而亮度Yw则依据亮度的不同而不同。In order to maintain the color and brightness consistency of the overall picture when the first light source 111 and the second light source 112 are dynamically converted, the white balance of the two light sources 111 and 112 is required to have consistent color coordinates and brightness. For example, suppose that the color coordinates of the white balance are x w , y w , and the brightness is Y w . Specifically, the color coordinates x w , y w of the white balance may select D65 (ie, the color coordinates are 0.3127, 0.329), and the brightness Y w varies depending on the brightness.
首先，任意一像素的三刺激值X0、Y0、Z0与对应的色坐标x、y的关系满足如下公式1，所述公式1用矩阵表示为公式2。First, the relationship between the tristimulus values X 0 , Y 0 , Z 0 of any one pixel and the corresponding color coordinates x, y satisfies the following formula 1, which is expressed by a matrix as Equation 2.
Figure PCTCN2017114721-appb-000001
Figure PCTCN2017114721-appb-000001
Figure PCTCN2017114721-appb-000002
Figure PCTCN2017114721-appb-000002
按照公式2，处于白平衡时，像素的三刺激值XW、YW、ZW满足如下公式3。According to Equation 2, at the time of white balance, the tristimulus values X W , Y W , Z W of the pixel satisfy the following formula 3.
Figure PCTCN2017114721-appb-000003
Figure PCTCN2017114721-appb-000003
进一步地，可以理解，在使用所述第一光还原画面时，利用所述第一光的三基色的最大亮度及色坐标也可以计算处于白平衡时的三刺激值；使用所述第二光调制图像时，利用所述第二光的三基色的最大亮度及色坐标也可以计算处于白平衡时的三刺激值。因此，依据上述原理及公式1-3，可以获知：处于白平衡时，像素的三刺激值XW、YW、ZW满足如下公式4。Further, it can be understood that when the first photoreduction screen is used, the tristimulus value at the time of white balance can also be calculated by using the maximum brightness and color coordinates of the three primary colors of the first light; using the second light When the image is modulated, the tristimulus value at the time of white balance can also be calculated using the maximum brightness and color coordinates of the three primary colors of the second light. Therefore, according to the above principle and the formula 1-3, it can be known that when the white balance is attained, the tristimulus values X W , Y W , Z W of the pixel satisfy the following formula 4.
Figure PCTCN2017114721-appb-000004
Figure PCTCN2017114721-appb-000004
Figure PCTCN2017114721-appb-000005
Figure PCTCN2017114721-appb-000005
而处于白平衡时所述像素的三刺激值XW、YW、ZW还满足如下公式4。The tristimulus values X W , Y W , Z W of the pixels at the time of white balance also satisfy the following formula 4.
Figure PCTCN2017114721-appb-000006
Figure PCTCN2017114721-appb-000006
为了使得所述第一光源111与所述第二光源112在动态转换的时候保持整体画面的颜色及亮度一致性，依据公式4，所述第一光与所述第二光的色坐标及亮度需满足以下公式6，才能保证所述第一光与所述第二光在动态转换的时候整体画面的颜色及亮度一致性。In order to maintain the color and brightness consistency of the overall picture when the first light source 111 and the second light source 112 are dynamically converted, according to formula 4, the color coordinates and brightness of the first light and the second light The following formula 6 is required to ensure the color and brightness consistency of the overall picture of the first light and the second light during dynamic conversion.
Figure PCTCN2017114721-appb-000007
Figure PCTCN2017114721-appb-000007
进一步地，将已知的各参数的色坐标及亮度值带入公式1可以获知以下公式7。Further, the following formula 7 can be known by bringing the color coordinates and luminance values of the known parameters into Equation 1.
Figure PCTCN2017114721-appb-000008
Figure PCTCN2017114721-appb-000008
Figure PCTCN2017114721-appb-000009
Figure PCTCN2017114721-appb-000009
因此，所述第一光的三基色的亮度Yr、Yg、Yb与所述第二光的三基色的亮度YR、YG、YB满足以下公式8与公式9，才能够相互匹配，使得所述第一光与所述第二光切换时，所述显示设备显示的图像颜色不发生颜色和亮度的差异。Therefore, the luminances Y r , Y g , Y b of the three primary colors of the first light and the luminances Y R , Y G , Y B of the three primary colors of the second light satisfy the following formula 8 and formula 9, in order to be able to mutually Matching, such that when the first light is switched with the second light, the color of the image displayed by the display device does not cause a difference in color and brightness.
Figure PCTCN2017114721-appb-000010
Figure PCTCN2017114721-appb-000010
Figure PCTCN2017114721-appb-000011
Figure PCTCN2017114721-appb-000011
进一步地，如前所述，本实施方式中，对于所述第一部分数据，所述图像数据处理模块120主要将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据。具体地，所述图像数据处理模块120将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据的方式如下：Further, as described above, in the embodiment, for the first partial data, the image data processing module 120 mainly converts the first partial data into a first sub-data based on the first color gamut range and A second sub-data based on the second gamut range. Specifically, the manner in which the image data processing module 120 converts the first partial data into the first sub data based on the first color gamut range and the second sub data based on the second color gamut range is as follows:
如前所述，所述第一色域范围与所述第二色域范围均为三角形区域，所述第一色域范围的三个对应三种颜色的顶点设为r、g、b，所述第二色域范围的三个对应所述三种颜色的顶点设为R、G、B，所述预定区域包括多个子区域，每个子区域均为三角形区域且每个子区域的三个顶点分别为所述第一色域范围的一个顶点与所述第二色域范围的两个顶点或者为所述第一色域范围的两个顶点与所述第二色域范围的两个顶点，且每个子区域的三个顶点中有两个顶点对应的颜色相同，设所述第一部分数据的任意一像素的各颜色的灰阶值为M1、M2与M3，所述图像数据处理模块120将依据所述像素的色坐标及所述像素的色坐标所属的子区域的三个顶点N1、N2、N3的色坐标转换为灰阶值W1、W2及W3，所述三个顶点N1、N2、N3为所述第一色域范围的一个顶点与所述第二色域范围的两个顶点或者为所述第一色域范围的两个顶点与所述第二色域范围的两个顶点，且所述三个顶点N1、N2、N3中有两个顶点对应的颜色相同，所述像素的色坐标位于所述三个顶点N1、N2、N3围成的三角形区域，其中所述灰阶值W1与所述顶 点N1对应且颜色相同，所述灰阶值W2与所述顶点N2对应且颜色相同，所述灰阶值W3与所述顶点N3对应且颜色相同，且依据所述灰阶值M1、M2与M3计算的三刺激值与依据所述灰阶值W1、W2及W3计算的三刺激值相等的原理，所述图像数据处理模块120还依据所述灰阶值W1、W2及W3中对应顶点为所述第一色域范围顶点的灰阶值计算获得所述第一子数据，以及依据所述灰阶值W1、W2及W3中对应顶点为第二色域范围顶点的灰阶值计算获得所述第二子数据。As described above, the first color gamut range and the second color gamut range are both triangular regions, and the vertices of the three corresponding three colors of the first color gamut range are set to r, g, and b. The three gamuts corresponding to the three color gamuts are set to R, G, and B, and the predetermined area includes a plurality of sub-areas, each of the sub-areas is a triangular area and three vertices of each sub-area are respectively a vertex of the first color gamut range and two vertices of the second color gamut range or two vertices of the first color gamut range and two vertices of the second color gamut range, and Two of the three vertices of each sub-region have the same color, and the grayscale values of the colors of any one of the first partial data are M1, M2, and M3, and the image data processing module 120 will The color coordinates of the pixel and the color coordinates of the three vertices N1, N2, and N3 of the sub-region to which the color coordinate of the pixel belongs are converted into grayscale values W1, W2, and W3, and the three vertices N1, N2, and N3 a vertex of the first color gamut range and two of the second color gamut range a point or two vertices of the first gamut range and two vertices of the second gamut range, and two of the three vertices N1, N2, N3 have the same color, a color coordinate of the pixel is located in a triangular region surrounded by the three vertices N1, N2, N3, wherein the grayscale value W1 and the top Point N1 corresponding to the same color, the grayscale value W2 corresponding to the vertex N2 and the same color, the grayscale value W3 corresponding to the vertex N3 and the same color, and according to the grayscale values M1, M2 and The M3 calculated tristimulus value is equal to the tristimulus value calculated according to the grayscale values W1, W2, and W3, and the image data processing module 120 further determines, according to the corresponding vertices of the grayscale values W1, W2, and W3. Calculating the grayscale value of the vertices of the first color gamut range to obtain the first sub-data, and calculating the grayscale value according to the vertices of the grayscale values W1, W2, and W3 as the vertices of the second color gamut range The second subdata is described.
详细来说，请参阅图2，本实施方式中，设所述第一部分数据的任意一像素的各颜色的灰阶值为M1、M2与M3，所述三个顶点N1、N2、N3分别为所述顶点G、g、b，即所述像素的色坐标位于所述顶点G、g、b形成的三角形区域中，依据所述灰阶值M1、M2与M3计算的三刺激值X，Y，Z如公式10所示：In detail, referring to FIG. 2, in this embodiment, the grayscale values of the colors of any one of the pixels of the first partial data are M1, M2, and M3, and the three vertices N1, N2, and N3 are respectively The vertices G, g, b, that is, the color coordinates of the pixel are located in a triangular region formed by the vertices G, g, b, and the tristimulus values X, Y calculated according to the grayscale values M1, M2, and M3 , Z is as shown in Equation 10:
Figure PCTCN2017114721-appb-000012
Figure PCTCN2017114721-appb-000012
其中，所述M1、M2及M3分别为所述像素的红绿蓝三颜色的灰阶值，所述M代表三基色的最大灰阶值，如255灰阶，可以理解，所述M1、M2及M3的数值均为【0,255】的范围内。The M1, M2, and M3 are grayscale values of the red, green, and blue colors of the pixel, respectively, and the M represents the maximum grayscale value of the three primary colors, such as 255 grayscale. It can be understood that the M1 and M2 are And the value of M3 is in the range of [0, 255].
进一步地，依据所述灰阶值W1、W2及W3计算的三刺激值X，Y，Z如公式11所示：Further, the tristimulus values X, Y, Z calculated according to the gray scale values W1, W2, and W3 are as shown in Formula 11:
Figure PCTCN2017114721-appb-000013
Figure PCTCN2017114721-appb-000013
其中，所述M1、M2及M3分别为所述像素基于其色坐标所述的三角形区域N1、N2、N3(如G、g、b)的转换灰阶值，其中，所述灰阶值W1与所述顶点N1(如G)对应且颜色相同，所述灰阶值W2与所述顶点N2(如g)对应且颜色相同，所述灰阶值W3与所述顶点N3(如b)对应且颜色相同。 The M1, M2, and M3 are respectively converted grayscale values of the triangular regions N1, N2, and N3 (such as G, g, b) of the pixel based on the color coordinates thereof, wherein the grayscale value W1 Corresponding to the vertex N1 (such as G) and the same color, the grayscale value W2 corresponds to the vertex N2 (such as g) and the color is the same, and the grayscale value W3 corresponds to the vertex N3 (such as b) And the color is the same.
所述图像数据处理模块120可以进一步依据所述灰阶值W2、W3及W3中对应顶点为所述第一色域范围顶点的灰阶值(如g、b)计算获得所述第一子数据，以及依据所述灰阶值W1、W2及W3中对应顶点为第二色域范围顶点(如G)的灰阶值W1计算获得所述第二子数据。The image data processing module 120 may further calculate, according to the grayscale values (such as g, b) of the vertices of the first color gamut range, the first sub-data according to the corresponding vertices of the grayscale values W2, W3, and W3. And obtaining the second sub-data according to the gray-scale value W1 of the corresponding vertices of the gray-scale values W1, W2, and W3 being the vertices of the second color gamut (such as G).
具体来说，当所述子区域的三个顶点为所述第一色域范围的两个顶点与所述第二色域范围的一个顶点，所述图像数据处理模块120将所述灰阶值W1、W2及W3中对应顶点为所述第一色域范围顶点的两个灰阶值作为所述像素转换后两个第一转换灰阶值，所述图像数据处理模块还将除了所述两个第一转换灰阶值代表的颜色以外的一个颜色的灰阶值设置为0，并将所述两个第一转换灰阶值及所述一个灰阶值0作为所述第一子数据。Specifically, when the three vertices of the sub-region are two vertices of the first gamut range and one vertex of the second gamut range, the image data processing module 120 sets the grayscale value. The corresponding vertices in W1, W2, and W3 are two grayscale values of the vertices of the first color gamut range as the two first converted grayscale values after the pixel conversion, and the image data processing module will The grayscale value of one color other than the color represented by the first converted grayscale value is set to 0, and the two first converted grayscale values and the one grayscale value of 0 are used as the first subdata.
当所述子区域的三个顶点为所述第一色域范围的一个顶点与所述第二色域范围的两个顶点，所述图像数据处理模块将所述灰阶值W1、W2及W3中对应顶点为所述第一色域范围顶点的一个灰阶值作为所述像素转换后一个第一转换灰阶值，所述图像数据处理模块还将除了所述一个第一转换灰阶值代表的颜色以外的两个颜色的灰阶值设置为0，并将所述一个第一转换灰阶值及所述两个灰阶值0作为所述第一子数据。When the three vertices of the sub-region are one vertex of the first color gamut range and two vertices of the second color gamut range, the image data processing module sets the grayscale values W1, W2, and W3 The corresponding vertices are a grayscale value of the vertices of the first color gamut range as a first converted grayscale value after the pixel conversion, and the image data processing module further comprises a first converted grayscale value representative The grayscale value of the two colors other than the color is set to 0, and the one first converted grayscale value and the two grayscale values of 0 are used as the first subdata.
当所述子区域的三个顶点为所述第一色域范围的两个顶点与所述第二色域范围的一个顶点，所述图像数据处理模块将所述灰阶值W1、W2及W3中对应顶点为所述第二色域范围顶点的一个灰阶值作为所述像素转换后一个第二转换灰阶值，所述一个第二转换灰阶值的代表的颜色与对应顶点代表的颜色相同，所述图像数据处理模块还将除了所述一个第二转换灰阶值代表的颜色以外的两个颜色的灰阶值设置为0，并将所述一个第二转换灰阶值及所述两个灰阶值0作为所述第二子数据。When the three vertices of the sub-region are two vertices of the first gamut range and one vertex of the second gamut range, the image data processing module sets the grayscale values W1, W2, and W3 The corresponding vertex is a grayscale value of the vertices of the second color gamut range as a second converted grayscale value after the pixel conversion, and the color represented by the second converted grayscale value and the color represented by the corresponding vertex Similarly, the image data processing module further sets a grayscale value of two colors other than the color represented by the one second converted grayscale value to 0, and the one of the second converted grayscale values and the Two gray scale values of 0 are used as the second sub data.
当所述子区域的三个顶点为所述第一色域范围的一个顶点与所述第二色域范围的两个顶点，所述图像数据处理模块将所述灰阶值W1、W2及W3中对应顶点为所述第二色域范围顶点的两个灰阶值作为所述像素转换后两个第二转换灰阶值，所述两个第二转换灰阶值的代表的颜色与对应顶点代表的颜色相同，所述图像数据处理模块还将除了所述两个第二转换灰阶值代表的颜色以外的一个颜色的灰阶值设置为0，并将所述两个第二转换灰阶值及所述一个灰阶值0作为 所述第二子数据。When the three vertices of the sub-region are one vertex of the first color gamut range and two vertices of the second color gamut range, the image data processing module sets the grayscale values W1, W2, and W3 The two corresponding gray scale values of the vertices of the second color gamut are the two second converted gray scale values after the pixel conversion, and the representative colors of the two second converted gray scale values and corresponding vertices The representative color is the same, the image data processing module further sets a grayscale value of one color other than the color represented by the two second converted grayscale values to 0, and sets the two second converted grayscales Value and the one grayscale value 0 as The second sub-data.
举例来说，某个像素的基于所述第二色域范围F2的灰阶值(M1,M2,M3)＝(20，200，100)，则通过计算所述像素的三刺激值X，Y,Z可以获知该点色坐标(x,y)＝(0.1841,0.4616)，在图2中的“*”位置，且该像素的色坐标在G、g、b构成的三角形内。根据上述算法，即公式10与公式11，将基于所述第二色域范围F2的灰阶值(M1,M2,M3)信号值转化为基于所述G、g、b构成的三角形区域的灰阶值(W1,W2,W3)＝(128,76,101)，最终，依据所述第一色域范围F1的顶点g，b对应的灰阶值76、101获得第一子数据(0,76,101)，以及依据所述第二色域范围F2的顶点G对应的灰阶值128获得第二子数据(0,128,0)。For example, a grayscale value (M1, M2, M3) of a certain pixel based on the second color gamut range F2 = (20, 200, 100), by calculating a tristimulus value X, Y of the pixel Z can know that the point color coordinate (x, y) = (0.1841, 0.4616), at the "*" position in Fig. 2, and the color coordinates of the pixel are within the triangle formed by G, g, b. According to the above algorithm, namely, Equation 10 and Equation 11, the grayscale value (M1, M2, M3) signal value based on the second color gamut range F2 is converted into gray based on the triangular region formed by the G, g, and b The order value (W1, W2, W3) = (128, 76, 101), and finally, the first sub-data (0, 76, 101) is obtained according to the gray-scale values 76, 101 corresponding to the vertices g, b of the first color gamut range F1. And obtaining the second sub-data (0, 128, 0) according to the grayscale value 128 corresponding to the vertex G of the second color gamut range F2.
进一步地，请参阅图2及图3，图3是图2所示色域范围的辅助说明图，将所述第一色域范围F1与所述第二色域范围F2的代表相同颜色的顶点相连接可以获得三个四边形构成的所述预定区域，其中任意一个四边形的顶点可以定义为A1、A2、A3及A4，其中，所述A1与A2为所述第一色域范围的两个顶点，所述A3与A4为第二色域范围的两个顶点，所述A1与A4代表的颜色相同，所述A2与A3代表的颜色相同，从图2可以看出，位于任意一个四边形区域的一个色坐标可以同时属于不同的三角形区域，如即属于A1、A4、A3构成的三角形区域中也位于A1、A4、A2构成的三角形区域中，此时，依据上述算法，可以通过所述A1、A4、A3三个顶点的色坐标计算的灰阶值W1、W2及W3，也可以通过A1、A4、A2三个顶点的色坐标计算的灰阶值W1、W2及W3。然而，在一种优选实施方式中，可以通过所述A1、A4、A2三个顶点的色坐标计算的灰阶值W1、W2及W3，即所述顶点N1、N2及N3选择自所述A1、A4、A2，此种选择的优点是：尽量少的选择所述第二色域范围F2的顶点(如A3与A4)，由于所述A1、A4、A3构成的三角形区域具有的第二色域范围的顶点(A3与A4)多于所述A1、A4、A2构成的三角形区域的第二色域范围的顶点(A4)，因此，所述顶点N1、N2及N3优选选自所述A1、A4、A2。Further, please refer to FIG. 2 and FIG. 3. FIG. 3 is an auxiliary explanatory diagram of the color gamut range shown in FIG. 2, and the vertices of the first color gamut range F1 and the second color gamut range F2 represent the same color. The predetermined connection may be obtained by three quadrangles, wherein the vertices of any one of the quadrilaterals may be defined as A1, A2, A3, and A4, wherein the A1 and A2 are two vertices of the first gamut range A3 and A4 are two vertices of the second color gamut range, and the colors represented by A1 and A4 are the same, and the colors represented by A2 and A3 are the same. As can be seen from FIG. 2, it is located in any quadrilateral region. A color coordinate may belong to different triangular regions at the same time, for example, a triangular region belonging to A1, A4, and A3 is also located in a triangular region formed by A1, A4, and A2. In this case, according to the above algorithm, the A1 may be adopted. The gray scale values W1, W2, and W3 calculated by the color coordinates of the three vertices of A4 and A3 may also be gray scale values W1, W2, and W3 calculated by the color coordinates of the three vertices A1, A4, and A2. However, in a preferred embodiment, the grayscale values W1, W2, and W3 that can be calculated by the color coordinates of the three vertices A1, A4, and A2, that is, the vertices N1, N2, and N3 are selected from the A1. , A4, A2, the advantage of this selection is: select the vertices of the second gamut range F2 (such as A3 and A4) as little as possible, because the triangular area formed by the A1, A4, and A3 has the second color The vertices (A3 and A4) of the domain range are more than the vertices (A4) of the second color gamut range of the triangular regions formed by the A1, A4, and A2, and therefore, the vertices N1, N2, and N3 are preferably selected from the A1. , A4, A2.
同理，若所述像素的色坐标位于A1、A2、A3构成的三角形区域中也位于A2、A3、A4构成的三角形区域中，则将所述A1、A2、A3三个顶点作为所述顶点N1、N2及N3。若所述像素的色坐标位于A1、A4、A3构成的三角形区域中也位于A1、A2、A3构成的三角形区域中，则将所述A1、A4、A3或者A1、A2、A3三 个顶点作为所述顶点N1、N2及N3。若所述像素的色坐标位于A1、A4、A3构成的三角形区域中也位于A2、A3、A4构成的三角形区域中，则将所述A1、A4、A3或者A2、A3、A4三个顶点作为所述顶点N1、N2及N3。Similarly, if the color coordinates of the pixel are located in the triangular region formed by A1, A2, and A3 and are also located in the triangular region formed by A2, A3, and A4, the three vertices A1, A2, and A3 are taken as the vertex. N1, N2 and N3. If the color coordinates of the pixel are located in the triangular region formed by A1, A4, and A3 and are also located in the triangular region formed by A1, A2, and A3, then the A1, A4, A3, or A1, A2, and A3 are three. The vertices are the vertices N1, N2, and N3. If the color coordinates of the pixel are located in a triangular region formed by A1, A4, and A3 and are also located in a triangular region formed by A2, A3, and A4, the three vertices A1, A4, A3, or A2, A3, and A4 are taken as The vertices N1, N2, and N3.
进一步地，如前所述，本实施方式中，对于所述第二部分数据，所述图像数据处理模块120主要将所述第二部分数据转换为基于所述第一色域范围的所述第三子数据。具体地，所述图像数据处理模块120将所述第二部分数据转换为基于所述第一色域范围的第三子数据的方式如下：Further, as described above, in the embodiment, for the second partial data, the image data processing module 120 mainly converts the second partial data into the first based on the first color gamut range Three sub-data. Specifically, the manner in which the image data processing module 120 converts the second partial data into the third sub data based on the first color gamut range is as follows:
所述图像数据处理模块120可以依据所述第二部分数据的各像素的灰阶值(如红绿蓝三颜色的灰阶值m1、m2、m3)、所述第一色域范围F1与所述第二色域范围F2的各顶点的色坐标计算所述各像素基于所述第一色域范围F1的灰阶值(如红绿蓝三颜色的灰阶值w1、w2、w3)从而得到所述基于所述第一色域范围F1的第三子数据。具体地，所述图像数据处理模块120可以依据所述第二部分数据的各像素的灰阶值、所述第二色域范围F2的各顶点的色坐标计算各像素的三刺激值(X，Y，Z)，再利用所述三刺激值(X，Y，Z)与所述第一色域范围F1的各顶点的色坐标计算各像素基于所述第一色域范围F1的灰阶值(如w1、w2、w3)从而获得所述第三子数据。The image data processing module 120 may be configured according to grayscale values of each pixel of the second partial data (such as grayscale values m1, m2, m3 of red, green and blue colors), the first color gamut range F1 and Calculating, according to the color coordinates of each vertex of the second color gamut range F2, the grayscale values (such as the grayscale values w1, w2, and w3 of the red, green, and blue colors) of the respective pixels according to the first color gamut range F1 The third sub-data based on the first color gamut range F1. Specifically, the image data processing module 120 may calculate a tristimulus value (X,) of each pixel according to a grayscale value of each pixel of the second partial data and a color coordinate of each vertex of the second color gamut range F2. Y, Z), using the tristimulus value (X, Y, Z) and the color coordinates of each vertex of the first color gamut range F1 to calculate the grayscale value of each pixel based on the first color gamut range F1 (eg, w1, w2, w3) to obtain the third sub-data.
如前所述，首先，所述图像数据处理模块120可以依据上述公式10进行所述第二部分数据的各像素的三刺激值的计算。As described above, first, the image data processing module 120 may perform the calculation of the tristimulus value of each pixel of the second partial data according to the above formula 10.
Figure PCTCN2017114721-appb-000014
Figure PCTCN2017114721-appb-000014
由于将所述基于第二色域范围的第二部分数据转换为基于第一色域范围F1的第三子数据的过程中，每个像素的三刺激值不变才能确保数据的准确还原，因此，利用所述三刺激值不变的原理，假设所述图像数据的一个像素的灰阶值m1、m2、m3对应的转换为基于所述第一色域范围F1的第三子数据的灰阶值为w1、w2、w3，则利用所述转换后的像素的灰阶值w1、w2、w3及所述第一色域范围F1的色坐标计算所述像素的三刺激值X、Y、Z，即所述三刺激值X、Y、Z还 符合如下公式12：Since the process of converting the second partial data based on the second color gamut range into the third sub data based on the first color gamut range F1, the tristimulus value of each pixel is unchanged to ensure accurate data reduction, thus Using the principle that the tristimulus value is unchanged, assuming that the grayscale values m1, m2, and m3 of one pixel of the image data are converted into gray scales based on the third subdata of the first color gamut range F1 When the values are w1, w2, and w3, the tristimulus values X, Y, and Z of the pixel are calculated by using the grayscale values w1, w2, and w3 of the converted pixel and the color coordinates of the first color gamut range F1. That is, the tristimulus values X, Y, Z are also Meets the following formula 12:
Figure PCTCN2017114721-appb-000015
Figure PCTCN2017114721-appb-000015
进一步将已知参数带入公式10与公式12可以获知公式13与公式14：Further introducing the known parameters into Equation 10 and Equation 12 can be used to know Equations 13 and 14:
Figure PCTCN2017114721-appb-000016
Figure PCTCN2017114721-appb-000016
Figure PCTCN2017114721-appb-000017
Figure PCTCN2017114721-appb-000017
当所述第二部分数据的一个像素的三颜色的灰阶值m1、m2、m3已知时，结合所述公式8、公式9、公式13与公式14可以计算得到所述像素对应的基于所述第一色域范围F1的三颜色的灰阶值为w1、w2、w3，进而所述第二部分数据的所有像素的基于所述第一色域范围F1的三颜色的灰阶值为w1、w2、w3构成所述第三子数据。When the grayscale values m1, m2, and m3 of the three colors of one pixel of the second partial data are known, the basis of the pixel can be calculated by combining the formula 8, the formula 9, the formula 13, and the formula 14. The grayscale values of the three colors of the first color gamut range F1 are w1, w2, and w3, and the grayscale values of the three colors of the first color gamut range F1 of all pixels of the second partial data are w1. , w2, and w3 constitute the third sub-data.
举例来说，当所述像素基于所述第二色域范围F2的灰阶值(m1,m2,m3)＝(100，160，120)，则所述像素对应的三刺激值(X,Y,Z)＝(0.4186YW,0.5569YW,0.5228YW)，而Yw依据选定的白平衡数据可以获得，进而可以获知对应的三刺激值(X,Y,Z)，再通过上述公式8、9、13、14计算即可得到所述像素对应的基于所述第一色域范围F1的第二图像数据的灰阶值(w1,w2,w3)＝(80,165,120)。For example, when the pixel is based on the grayscale value (m1, m2, m3) of the second color gamut range F2 = (100, 160, 120), the corresponding tristimulus value of the pixel (X, Y) , Z) = (0.4186Y W , 0.5569Y W , 0.5228Y W ), and Yw can be obtained according to the selected white balance data, and then the corresponding tristimulus values (X, Y, Z) can be obtained, and then the above formula is obtained. 8, 9, 13, 14 can calculate the grayscale value (w1, w2, w3) = (80, 165, 120) of the second image data based on the first color gamut range F1 corresponding to the pixel.
可以理解，对于任意一个像素来说，通过计算获知所述像素的三刺激值(X,Y,Z)，再依据所述三刺激值(X,Y,Z)与所述像素的色坐标的关系公式(如公式1或公式2)即可计算获知所述像素的色坐标x，y，从而依据第一图像数 据各像素的色坐标x，y即可判断所述第一图像数据的色域范围。所述图像数据处理模块120可以依据上述原理计算所述第一图像数据的各像素的三刺激值来获知各像素的色坐标，进而依据各像素的色坐标判断所述第一图像数据的色域范围是在所述第一色域范围F1内还是再所述第一色域范围F1以外。It can be understood that, for any pixel, the tristimulus value (X, Y, Z) of the pixel is obtained by calculation, and then according to the tristimulus value (X, Y, Z) and the color coordinate of the pixel. The relationship formula (such as formula 1 or formula 2) can calculate the color coordinates x, y of the pixel, so that the first image number The color gamut range of the first image data can be determined according to the color coordinates x, y of each pixel. The image data processing module 120 may calculate the tristimulus values of the pixels of the first image data according to the above principle to learn the color coordinates of each pixel, and then determine the color gamut of the first image data according to the color coordinates of each pixel. The range is outside the first color gamut range F1 or the first color gamut range F1.
所述光调制装置130接收所述图像数据处理模块120输出的数据，当所述光调制装置130接收所述第一子数据与所述第二子数据，所述光调制装置130依据所述第一子数据调制所述第一光获得第一图像光，并且依据所述第二子数据调制所述第二光获得第二图像光。若所述光调制装置接收所述第三子数据，所述光调制装置130依据所述第三子数据调制所述第一光获得第三图像光。若所述光调制装置130接收所述第三部分数据，所述光调制装置130依据所述第三部分数据调制所述第二光获得第四图像光。The light modulating device 130 receives the data output by the image data processing module 120. When the light modulating device 130 receives the first sub data and the second sub data, the light modulating device 130 is configured according to the first A sub-data modulates the first light to obtain a first image light, and modulates the second light according to the second sub-data to obtain a second image light. If the light modulating device receives the third sub-data, the light modulating device 130 modulates the first light according to the third sub-data to obtain a third image light. If the light modulating device 130 receives the third portion of data, the light modulating device 130 modulates the second light according to the third portion of data to obtain a fourth image light.
具体地，本实施方式中，所述光调制装置130可以包括第一空间光调制器131与第二空间光调制器132。所述第一空间光调制器131与所述第二空间光调制器132可以为DMD空间光调制器、LCD空间光调制器或LCOS空间光调制器，但不限于上述。所述第一空间光调制器131用于接收所述第一子数据、所述第三子数据，以及接收所述第一光的照射，进而依据第一子数据、所述第三子数据调制所述第一光产生对应的图像光。具体地，在一种实施例中，所述第一空间光调制器131可以在第一时段依据所述第一子数据调制所述第一光以及在第二时段依据所述第三子数据调制所述第一光，其中所述第一时段与所述第二时段不交叠；在另一种实施例中，所述第一空间光调制器131可以同时依据所述第一子数据、所述第三子数据调制所述第一光，具体地，所述第一子数据与所述第三子数据可以合成为第一复合子数据，从而所述第一空间光调制器131依据所述第一复合子数据调制所述第一光。Specifically, in the embodiment, the light modulation device 130 may include a first spatial light modulator 131 and a second spatial light modulator 132. The first spatial light modulator 131 and the second spatial light modulator 132 may be a DMD spatial light modulator, an LCD spatial light modulator, or an LCOS spatial light modulator, but are not limited thereto. The first spatial light modulator 131 is configured to receive the first sub data, the third sub data, and receive the illumination of the first light, and further modulate according to the first sub data and the third sub data. The first light produces corresponding image light. Specifically, in an embodiment, the first spatial light modulator 131 may modulate the first light according to the first sub data in a first time period and according to the third sub data modulation in a second time period. The first light, wherein the first time period and the second time period do not overlap; in another embodiment, the first spatial light modulator 131 can simultaneously according to the first sub data, The third sub-data modulates the first light. Specifically, the first sub-data and the third sub-data may be synthesized into a first composite sub-data, so that the first spatial light modulator 131 is configured according to the The first composite sub-data modulates the first light.
所述第二空间光调制器132用于接收所述第二子数据、所述第三部分数据，以及接收所述第二光的照射，进而依据第二子数据、所述第三部分数据调制所述第二光产生对应的图像光。具体地，在一种实施例中，所述第二空间光调制器132可以在第一时段依据所述第三子数据调制所述第二光以及在第二时段依据所述第三部分数据调制所述第二光，其中所述第一时段与所述第二时段不交叠；在另一种实施例中，所述第二空间光调制器132可以同时依据所述第二子 数据、所述第三部分数据调制所述第二光，具体地，所述第二子数据与所述第三部分数据可以合成为第二复合子数据，从而所述第二空间光调制器132依据所述第二复合子数据调制所述第二光。The second spatial light modulator 132 is configured to receive the second sub-data, the third partial data, and receive the illumination of the second light, and further modulate according to the second sub-data and the third partial data. The second light produces corresponding image light. Specifically, in an embodiment, the second spatial light modulator 132 may modulate the second light according to the third sub data in a first time period and according to the third partial data modulation in a second time period. The second light, wherein the first time period and the second time period do not overlap; in another embodiment, the second spatial light modulator 132 may simultaneously depend on the second time Data, the third portion of data modulating the second light, specifically, the second sub-data and the third portion of data may be synthesized into second composite sub-data, such that the second spatial light modulator 132 The second light is modulated according to the second composite sub-data.
所述光调制装置130还依据所述图像数据处理模块120输出的数据产生第一光源控制信号及第二光源控制信号，所述第一及第二光源控制信号被提供至所述光源控制器113，以用于控制所述第一光源111与第二光源112发出所述第一光与所述第二光的开启关闭时序及/或强度。The light modulating device 130 further generates a first light source control signal and a second light source control signal according to the data output by the image data processing module 120, and the first and second light source control signals are provided to the light source controller 113. For controlling the first light source 111 and the second light source 112 to emit an opening and closing timing and/or intensity of the first light and the second light.
具体地，所述第一及第二光源控制信号可以通过所述光源控制器113控制所述第一光源111与所述第二光源112的开启与关闭来控制所述第一光与所述第二光的发光时序与所述光调制装置130依据对应的数据调制图像的时序相对应。可以理解，关于对所述第一光源111与所述第二光源112开启关闭时序及/或强度需配合上述空间光调制器数量及调制时序，具体可以有多种控制及实现方案，此处就不再赘述其具体开启控制方案。Specifically, the first and second light source control signals may control the opening and closing of the first light source 111 and the second light source 112 by the light source controller 113 to control the first light and the first The light emission timing of the two lights corresponds to the timing of the light modulation device 130 according to the corresponding data modulation image. It can be understood that, regarding the opening and closing timing and/or intensity of the first light source 111 and the second light source 112, the number of spatial light modulators and the modulation timing need to be matched, and specifically, there may be various control and implementation schemes. The specific opening control scheme will not be described again.
所述图像合成装置140邻近所述光调制装置130设置，用于接收所述光调制装置130发出的图像光并将接收到的图像光合成以显示图像。可以理解，所述图像合成装置140可以包括投影镜头。The image synthesizing device 140 is disposed adjacent to the light modulating device 130 for receiving image light emitted by the light modulating device 130 and synthesizing the received image light to display an image. It can be understood that the image synthesizing device 140 can include a projection lens.
本实施方式中，所述光中继***116还自所述光调制装置130回收未被利用的所述第二光使得所述回收的第二光经由所述第二照明***再次提供到所述光调制装置130被利用。所述第二光具有三种颜色(如红绿蓝三基色)，设该幅待显示图像的分辨率为a*b，若该幅待显示图像的图像数据需要使用所述第二光进行调制的三个颜色的像素个数均为a*b，所述第二光源112提供至所述光调制装置130的所述第二光的三种颜色的亮度分别为第一标准亮度、第二标准亮度及第三标准亮度；若该幅待显示图像的图像数据需要使用所述第二光进行调制的三个颜色的像素个数为i、j、k个，所述光中继***116从所述光调制装置130回收未被利用的所述第二光使得所述回收的第二光被提供所述光调制装置130再次利用，假设所述光调制装置130对所述第二光的回收效率基本上是100％，则所述第二光源112提供至所述光调制装置130的所述第二光的三种颜色的亮度分别为第一标准亮度的i/a*b、第二标准亮度的j/a*b及第三标准亮度的k/a*b。具体地，可以理解，本实施方式中，由于所述第二空间光调制器132接 收所述第二光，则所述光中继***116自所述第二空间光调制器132回收所述第二光即可。In this embodiment, the optical relay system 116 also recovers the second light that is not utilized from the light modulation device 130 such that the recovered second light is again provided to the The light modulation device 130 is utilized. The second light has three colors (such as red, green and blue three primary colors), and the resolution of the image to be displayed is a*b, and if the image data of the image to be displayed needs to be modulated by using the second light The number of pixels of the three colors is a*b, and the brightness of the three colors of the second light provided by the second light source 112 to the light modulation device 130 is respectively the first standard brightness and the second standard. Brightness and a third standard brightness; if the image data of the image to be displayed requires the number of pixels of the three colors modulated by the second light to be i, j, k, the optical relay system 116 The light modulating device 130 recovers the second light that is not utilized such that the recovered second light is provided to the light modulating device 130 for reuse, assuming that the light modulating device 130 recovers the second light. Basically 100%, the brightness of the three colors of the second light provided by the second light source 112 to the light modulation device 130 is respectively i/a*b of the first standard brightness, and the second standard brightness j/a*b and k/a*b of the third standard brightness. Specifically, it can be understood that, in this embodiment, the second spatial light modulator 132 is connected. Receiving the second light, the optical relay system 116 may recover the second light from the second spatial light modulator 132.
请参阅图4，图4是是本发明第二实施方式的显示设备200的方框结构示意图。所述显示设备200与第一实施方式的显示设备100基本相同，也就是说，针对所述显示设备100的描述基本上可以用于所述显示设备200，二者的主要区别在于：光调制装置230的空间光调制器的数量不同，从而光调制装置230对图像数据处理模块220输出的数据进行调制的调制时序可以不同。本实施方式中，所述光调制装置230包括一个空间光调制器231，所述空间光调制器231经由同一个照明***214接收第一光源211发出的第一光及第二光源212发出的第二光，且所述空间光调制器231分时(即在不同的时段)依据所述图像数据处理模块220输出的数据(如第一子数据、第二子数据、第三子数据、第三部分数据)调制对应的光产生对应的图像光。Please refer to FIG. 4. FIG. 4 is a block diagram showing the structure of a display device 200 according to a second embodiment of the present invention. The display device 200 is substantially the same as the display device 100 of the first embodiment, that is, the description for the display device 100 can be basically used for the display device 200, the main difference between the two is: the light modulation device The number of spatial light modulators 230 is different, so that the modulation timing at which the light modulation device 230 modulates the data output by the image data processing module 220 can be different. In this embodiment, the light modulating device 230 includes a spatial light modulator 231. The spatial light modulator 231 receives the first light emitted by the first light source 211 and the second light source 212 via the same illumination system 214. Two light, and the spatial light modulator 231 is time-divisionally (ie, at different time periods) according to data output by the image data processing module 220 (eg, first sub data, second sub data, third sub data, third Part of the data) modulates the corresponding light to produce corresponding image light.
具体地，请参阅5，图5是图4所示显示设备200的一种图像调制的时序示意图。所述图像数据处理模块220可以顺序输出对应所述第二光的数据(第二子数据、第三部分数据或第二子数据与第三部分数据的复合数据)及对应所述第一光的数据(第一子数据、第三子数据或第一子数据与第三子数据的复合数据)，使得所述空间光调制器231顺序依据所述对应所述第二光的数据调制所述第二光、以及依据所述对应所述第一光的数据调制所述第一光。具体地，所述空间光调制器231可以在一帧画面调制时段的第一时段(如前半时段)依据对应所述第二光的数据调制所述第二光产生对应的图像光，以及在一帧画面调制时段的第二时段(如后半时段)依据对应所述第一光的数据调制所述第一光产生对应的图像光，所述两个时段产生的图像光通过时序的方式合光，形成最终的图像。Specifically, please refer to FIG. 5, which is a timing diagram of an image modulation of the display device 200 shown in FIG. The image data processing module 220 may sequentially output data corresponding to the second light (second sub data, third partial data, or composite data of the second sub data and the third partial data) and corresponding to the first light Data (first sub data, third sub data or composite data of the first sub data and the third sub data), such that the spatial light modulator 231 sequentially modulates the data according to the data corresponding to the second light Dimming light, and modulating the first light according to the data corresponding to the first light. Specifically, the spatial light modulator 231 may modulate the second light to generate corresponding image light according to data corresponding to the second light in a first time period (such as a first half period) of a frame picture modulation period, and in a The second period of the frame picture modulation period (such as the second half period) modulates the image light corresponding to the first light according to the data corresponding to the first light, and the image light generated by the two periods is combined by time series To form the final image.
请参阅图6，图6是本发明显示设备的显示方法的流程示意图。所述显示方法可以使用所述第一实施方式、第二实施方式中任意一个实施方式的显示设备100、200来完成。具体地，所述显示方法可以包括如下步骤S1-S6。Please refer to FIG. 6. FIG. 6 is a schematic flow chart of a display method of the display device of the present invention. The display method can be completed using the display devices 100 and 200 of any of the first embodiment and the second embodiment. Specifically, the display method may include the following steps S1-S6.
步骤S1，提供第一光与第二光，所述第一光用于调制第一色域范围内的图像，所述第二光用于调制所述第一色域范围以外的图像。其中可以通过所述光源装置110提供所述第一光及所述第二光。关于所述光源装置110的具体结构、 所述第一光及所述第二光的具体要求已在上面说明，此处就不再赘述。In step S1, first light and second light are provided, the first light is used to modulate an image in a first color gamut, and the second light is used to modulate an image outside the first color gamut. The first light and the second light may be provided by the light source device 110. Regarding the specific structure of the light source device 110, The specific requirements of the first light and the second light have been described above, and are not described herein again.
步骤S2，接收一幅待显示图像的原始图像数据并依据该幅待显示图像原始图像数据判断该幅待显示图像的色域范围，所述图像数据是基于第二色域范围的图像数据且包括各像素各颜色的灰阶值。Step S2, receiving an original image data of an image to be displayed and determining a color gamut range of the image to be displayed according to the original image data of the image to be displayed, the image data is image data based on the second color gamut range and includes The grayscale value of each color of each pixel.
在一种实施例中，所述步骤S2可以具体包括如下步骤：依据所述各像素各颜色的灰阶值及所述第二色域范围的色坐标计算各像素的色坐标，并依据所述各像素的色坐标判断所述第一图像数据的色域范围。In an embodiment, the step S2 may specifically include the following steps: calculating color coordinates of each pixel according to the grayscale value of each color of each pixel and the color coordinate of the second color gamut range, and according to the The color coordinates of each pixel determine the color gamut range of the first image data.
具体地，所述步骤S2可以由所述图像数据处理模块120执行，而所述图像数据处理模块120如何判断所述第一图像数据的色域范围已在前面对所述图像数据处理模块120的介绍部分描述，此处就不再赘述。Specifically, the step S2 may be performed by the image data processing module 120, and how the image data processing module 120 determines that the color gamut of the first image data has been previously applied to the image data processing module 120. The description of the introduction is not repeated here.
步骤S3，若该幅待显示图像的原始图像数据包括像素色坐标位于预定区域内的第一部分数据，将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据，其中，所述第二色域范围覆盖所述第一色域范围且具有超出所述第一色域范围的部分，所述预定区域为所述第一色域范围之外且所述第二色域范围的边界线内侧不包括所述边界线的区域。Step S3, if the original image data of the image to be displayed includes the first partial data in which the pixel color coordinates are located in the predetermined area, converting the first partial data into the first sub-data based on the first color gamut range and the basis a second sub-data of a second color gamut range, wherein the second color gamut range covers the first color gamut range and has a portion exceeding the first color gamut range, the predetermined area being the An area outside the range of one color gamut and inside the boundary line of the second color gamut range does not include the boundary line.
步骤S4，若该幅待显示图像的原始图像数据包括像素色坐标位于所述第一色域范围的第二部分数据，将所述第二部分数据转换为基于所述第一色域范围的第三子数据。Step S4, if the original image data of the image to be displayed includes the second partial data of the pixel color coordinate in the first color gamut, converting the second partial data into the first color gamut based on the first color gamut Three sub-data.
所述步骤S4中，可以依据所述第二部分数据的各像素的灰阶值、所述第一色域范围与所述第二色域范围的各顶点的色坐标计算所述各像素基于所述第一色域范围的灰阶值从而得到所述基于所述第一色域范围的第三子数据。In the step S4, the pixels may be calculated based on the grayscale value of each pixel of the second partial data, the first color gamut range, and the color coordinates of each vertex of the second color gamut range. The gray scale value of the first color gamut range is obtained to obtain the third sub data based on the first color gamut range.
具体地，所述步骤S4中，可以依据所述第二部分数据的各像素的灰阶值、所述第二色域范围的各顶点的色坐标计算各像素的三刺激值，再利用所述三刺激值与所述第一色域范围的各顶点的色坐标计算各像素基于所述第一色域范围的灰阶值从而获得所述第三子数据。Specifically, in the step S4, the tristimulus value of each pixel may be calculated according to the grayscale value of each pixel of the second partial data and the color coordinate of each vertex of the second colorrange range, and then the The tristimulus value and the color coordinates of the vertices of the first color gamut range calculate a grayscale value of each pixel based on the first color gamut range to obtain the third sub data.
步骤S5，若该幅待显示图像的原始图像数据包括像素色坐标位于所述第二色域范围的边界线上的第三部分数据，输出所述第三部分数据。Step S5: If the original image data of the image to be displayed includes the third portion of data whose pixel color coordinates are located on the boundary line of the second color gamut range, the third partial data is output.
具体地，所述步骤S3、S4及S5可以由所述图像数据处理模块120执行，而所述图像数据处理模块120如何判断所述第一图像数据的色域范围已在前面 对所述图像数据处理模块120的介绍部分描述，此处就不再赘述。Specifically, the steps S3, S4, and S5 may be performed by the image data processing module 120, and how the image data processing module 120 determines that the color gamut of the first image data is already in front. The description of the introduction part of the image data processing module 120 will not be repeated here.
步骤S6，依据所述第一子数据调制第一光获得第一图像光，依据所述第二子数据调制第二光获得第二图像光；依据所述第三子数据调制所述第一光获得第三图像光；及依据所述第三部分数据调制所述第二光获得第四图像光。Step S6, modulating the first light according to the first sub-data to obtain the first image light, modulating the second light according to the second sub-data to obtain the second image light, and modulating the first light according to the third sub-data Obtaining a third image light; and modulating the second light according to the third portion of data to obtain a fourth image light.
具体地，所述步骤S6可以由上述光调制装置130、230执行，而所述光调制装置130、230如何依据对应的数据调制对应的光产生对应的图像光已在前面对所述光调制装置130、230的介绍部分描述，此处就不再赘述。Specifically, the step S6 may be performed by the light modulating device 130, 230, and the light modulating device 130, 230 modulates the corresponding light according to the corresponding data to generate corresponding image light. Descriptions of the introductory parts of the devices 130, 230 will not be repeated here.
步骤S7，将调制获得的图像光合成以显示图像。具体地，所述步骤S7可以采用图像合成模块140、240执行，此处就不再赘述。In step S7, the image obtained by the modulation is light-combined to display an image. Specifically, the step S7 may be performed by using the image synthesizing modules 140 and 240, and details are not described herein again.
与现有技术相比较，本发明显示设备与显示方法中不仅可以实现宽色域的图像数据的显示，并且在所述图像数据是基于第二色域范围的图像数据且该幅待显示图像的至少部分像素的色坐标位于预定区域内时，将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据，从而依据所述第一子数据调制第一光获得第一图像光，依据所述第二子数据调制第二光获得第二图像光，使得所述第一部分数据的图像不仅可以被所述第一图像光与所述第二图像光准确的还原，而且由于所述第一部分数据利用了部分所述第一光及部分所述第二光共同调制还原，相较于完全使用第二光还原的技术方案来说，本发明的显示设备100、200与显示方法可以较少的使用所述第二光，即减少对所述第二光的使用，进而降低光源成本。Compared with the prior art, in the display device and the display method of the present invention, not only the display of image data of a wide color gamut can be realized, but also the image data is based on image data of a second color gamut range and the image to be displayed is displayed. Converting the first partial data into a first sub-data based on the first color gamut range and a second sub-data based on the second color gamut range, when the color coordinates of at least part of the pixels are located in a predetermined area, thereby The first sub-data modulates the first light to obtain the first image light, and modulates the second light according to the second sub-data to obtain the second image light, so that the image of the first partial data can be not only the first image light Accurately reducing with the second image light, and since the first portion of data utilizes a portion of the first light and a portion of the second light to be jointly modulated and restored, compared to a technical solution that completely uses the second photoreduction It can be said that the display device 100, 200 and the display method of the present invention can use the second light less, that is, reduce the use of the second light, thereby reducing the cost of the light source.
进一步地，针对属于所述第一色域范围的第二部分数据，依据所述转换色域范围获得的第三子数据调制所述第一光产生图像光，由于第一光相较于第二光为较窄色域的光，从而在所述第二部分数据的各像素的色坐标均位于所述第一色域范围之内时可以不使用较宽色域范围的第二光源112，进而降低光源成本。此外，本发明显示设备100与显示方法中，依据所述各像素各颜色的灰阶值、所述第二色域范围F2的色坐标及所述第一色域范围F1的色坐标获得各像素基于所述第一色域范围F1的各颜色的灰阶值获得所述第三子数据，进而依据所述第三子数据调制所述第一光，使得所述显示设备100与显示方法可以准确还原待显示图像，显示效果较好。Further, for the second partial data belonging to the first color gamut range, the first light-generated image light is modulated according to the third sub-data obtained by the converted color gamut range, since the first light is compared to the second The light is light of a narrower color gamut, so that when the color coordinates of each pixel of the second partial data are all within the first color gamut, the second light source 112 of a wider color gamut may not be used. Reduce the cost of the light source. In addition, in the display device 100 and the display method of the present invention, each pixel is obtained according to the grayscale value of each color of each pixel, the color coordinate of the second color gamut range F2, and the color coordinate of the first color gamut range F1. Obtaining the third sub-data based on the grayscale value of each color of the first color gamut range F1, and further modulating the first light according to the third sub-data, so that the display device 100 and the display method can be accurate Restore the image to be displayed, and the display effect is better.
更进一步地，通过使所述第一光与所述第二光的色坐标及亮度需满足以下 公式6，可以保证所述第一光与所述第二光在动态转换的时候整体画面的颜色及亮度一致性，因此所述显示设备100的显示效果较好。Further, by making the color coordinates and brightness of the first light and the second light satisfy the following In formula 6, the color and brightness of the overall picture of the first light and the second light are dynamically changed, so that the display device 100 has a better display effect.
另外，对于位于所述预定区域中位于任意一个四边形区域的一个色坐标，当所述色坐标可以同时属于不同的三角形区域，尽量少的选择所述第二色域范围F2的顶点(如A3与A4)作为所述三角形区域的顶点，可以进一步减少对激光的使用，并且达到准确还原待显示图像的效果。In addition, for one color coordinate located in any one of the quadrilateral regions in the predetermined region, when the color coordinates can belong to different triangular regions at the same time, the vertices of the second color gamut range F2 are selected as little as possible (such as A3 and A4) As the apex of the triangular region, the use of the laser light can be further reduced, and the effect of accurately reducing the image to be displayed can be achieved.
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。 The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims (17)

  1. 一种显示设备，其特征在于，所述显示设备包括：A display device, characterized in that the display device comprises:
    第一光源，用于发出第一光，所述第一光用于调制第一色域范围的图像；a first light source for emitting a first light, the first light being used to modulate an image of a first color gamut;
    第二光源，用于发出第二光，所述第二光的色域范围较所述第一光宽，所述第二光用于单独调制或者配合所述第一光共同调制所述第一色域范围以外的图像；a second light source for emitting a second light, wherein the second light has a color gamut wider than the first light, and the second light is used to separately modulate or cooperate with the first light to modulate the first light An image outside the gamut;
    图像数据处理模块，用于接收一幅待显示图像的原始图像数据并依据该幅待显示图像的原始图像数据判断该幅待显示图像的色域范围，该幅待显示图像的原始图像数据是基于第二色域范围的图像数据且包括各像素各颜色的灰阶值，所述第二色域范围覆盖所述第一色域范围且具有超出所述第一色域范围的部分，若该幅待显示图像的原始图像数据包括像素的色坐标位于预定区域内的第一部分数据，所述图像数据处理模块将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据并输出，其中，所述预定区域为所述第一色域范围之外且所述第二色域范围的边界线内侧不包括所述边界线的区域；An image data processing module, configured to receive raw image data of an image to be displayed and determine a color gamut range of the image to be displayed according to the original image data of the image to be displayed, where the original image data of the image to be displayed is based on Image data of a second color gamut range and including grayscale values of respective colors of respective pixels, the second color gamut range covering the first color gamut range and having a portion exceeding the first color gamut range, if the The original image data of the image to be displayed includes first partial data in which the color coordinates of the pixel are located in a predetermined area, and the image data processing module converts the first partial data into the first sub data based on the first color gamut range and based on And outputting the second sub-data of the second color gamut range, wherein the predetermined area is outside the first color gamut range and the inner side of the boundary line of the second color gamut range does not include the boundary line region;
    光调制装置，用于依据所述第一子数据调制所述第一光获得第一图像光，依据所述第二子数据调制所述第二光获得第二图像光；及a light modulating device, configured to modulate the first light according to the first sub-data to obtain first image light, and modulate the second light according to the second sub-data to obtain second image light;
    图像合成装置，用于将所述第一图像光与所述第二图像光合成以显示图像。An image synthesizing device for synthesizing the first image light and the second image light to display an image.
  2. 如权利要求1所述的显示设备，其特征在于：所述第一色域范围与所述第二色域范围均为三角形区域，所述第一色域范围的三个对应三种颜色的顶点设为r、g、b，所述第二色域范围的三个对应所述三种颜色的顶点设为R、G、B，所述预定区域包括多个子区域，每个子区域均为三角形区域且每个子区域的三个顶点分别为所述第一色域范围的一个顶点与所述第二色域范围的两个顶点或者为所述第一色域范围的两个顶点与所述第二色域范围的一个顶点，且每个子区域的三个顶点中有两个顶点对应的颜色相同；The display device according to claim 1, wherein the first color gamut range and the second color gamut range are both triangular regions, and three of the first color gamut ranges correspond to vertices of three colors Set to r, g, b, three vertices of the second color gamut corresponding to the three colors are set to R, G, B, and the predetermined area includes a plurality of sub-areas, each sub-area is a triangular area And three vertices of each sub-area are respectively one vertex of the first color gamut range and two vertices of the second color gamut range or two vertices of the first color gamut range and the second a vertex of the gamut range, and two of the three vertices of each sub-region have the same color;
    所述图像数据处理模块依据所述第一部分数据的任意一像素的各颜色的灰阶值M1、M2及M3、所述像素的色坐标、及所述像素的色坐标所属的子区域的三个顶点N1、N2、N3的色坐标将所述灰阶值M1、M2及M3转换为灰阶值W1、W2及W3，其中，所述灰阶值W1与所述顶点N1对应且颜色相同，所述灰阶值W2 与所述顶点N2对应且颜色相同，所述灰阶值W3与所述顶点N3对应且颜色相同，且依据所述灰阶值M1、M2与M3计算的三刺激值与依据所述灰阶值W1、W2及W3计算的三刺激值相等；The image data processing module is configured to: according to the grayscale values M1, M2, and M3 of the colors of the pixels of the first partial data, the color coordinates of the pixels, and the subregions to which the color coordinates of the pixels belong. The color coordinates of the vertices N1, N2, and N3 convert the grayscale values M1, M2, and M3 into grayscale values W1, W2, and W3, wherein the grayscale value W1 corresponds to the vertex N1 and has the same color. Gray level value W2 Corresponding to the vertex N2 and having the same color, the grayscale value W3 corresponds to the vertex N3 and the color is the same, and the tristimulus value calculated according to the grayscale values M1, M2, and M3 is based on the grayscale value. The tristimulus values calculated by W1, W2, and W3 are equal;
    所述图像数据处理模块还依据所述灰阶值W1、W2及W3中对应顶点为所述第一色域范围顶点的灰阶值计算获得所述第一子数据，以及依据所述灰阶值W1、W2及W3中对应顶点为第二色域范围顶点的灰阶值计算获得所述第二子数据。The image data processing module further calculates, according to the grayscale value of the vertices of the first color gamut range, the first sub-data according to the corresponding vertices of the grayscale values W1, W2, and W3, and according to the grayscale value. The second sub-data is obtained by calculating gray scale values corresponding to vertices of the second color gamut range in the corresponding vertices of W1, W2, and W3.
  3. 如权利要求2所述的显示设备，其特征在于：当所述子区域的三个顶点为所述第一色域范围的两个顶点与所述第二色域范围的一个顶点，所述图像数据处理模块将所述灰阶值W1、W2及W3中对应顶点为所述第一色域范围顶点的两个灰阶值作为所述像素转换后两个第一转换灰阶值，所述图像数据处理模块还将除了所述两个第一转换灰阶值代表的颜色以外的一个颜色的灰阶值设置为0，并将所述两个第一转换灰阶值及所述一个灰阶值0作为所述第一子数据；The display device according to claim 2, wherein when said three vertices of said sub-region are two vertices of said first gamut range and a vertice of said second gamut range, said image The data processing module uses two grayscale values of the grayscale values W1, W2, and W3 as the first grayscale value of the first color gamut range as the two first converted grayscale values after the pixel conversion, the image The data processing module further sets a grayscale value of one color other than the color represented by the two first converted grayscale values to 0, and sets the two first converted grayscale values and the one grayscale value 0 as the first sub-data;
    当所述子区域的三个顶点为所述第一色域范围的一个顶点与所述第二色域范围的两个顶点，所述图像数据处理模块将所述灰阶值W1、W2及W3中对应顶点为所述第一色域范围顶点的一个灰阶值作为所述像素转换后一个第一转换灰阶值，所述图像数据处理模块还将除了所述一个第一转换灰阶值代表的颜色以外的两个颜色的灰阶值设置为0，并将所述一个第一转换灰阶值及所述两个灰阶值0作为所述第一子数据。When the three vertices of the sub-region are one vertex of the first color gamut range and two vertices of the second color gamut range, the image data processing module sets the grayscale values W1, W2, and W3 The corresponding vertices are a grayscale value of the vertices of the first color gamut range as a first converted grayscale value after the pixel conversion, and the image data processing module further comprises a first converted grayscale value representative The grayscale value of the two colors other than the color is set to 0, and the one first converted grayscale value and the two grayscale values of 0 are used as the first subdata.
  4. 如权利要求2所述的显示设备，其特征在于：当所述子区域的三个顶点为所述第一色域范围的两个顶点与所述第二色域范围的一个顶点，所述图像数据处理模块将所述灰阶值W1、W2及W3中对应顶点为所述第二色域范围顶点的一个灰阶值作为所述像素转换后一个第二转换灰阶值，所述一个第二转换灰阶值的代表的颜色与对应顶点代表的颜色相同，所述图像数据处理模块还将除了所述一个第二转换灰阶值代表的颜色以外的两个颜色的灰阶值设置为0，并将所述一个第二转换灰阶值及所述两个灰阶值0作为所述第二子数据；The display device according to claim 2, wherein when said three vertices of said sub-region are two vertices of said first gamut range and a vertice of said second gamut range, said image The data processing module uses a grayscale value of the grayscale values W1, W2, and W3 as a grayscale value of the vertex of the second color gamut range as a second converted grayscale value after the pixel conversion, the second one The color of the representative of the converted grayscale value is the same as the color represented by the corresponding vertex, and the image data processing module further sets the grayscale value of the two colors other than the color represented by the one second converted grayscale value to 0. And the second converted grayscale value and the two grayscale values 0 are used as the second subdata;
    当所述子区域的三个顶点为所述第一色域范围的一个顶点与所述第二色域范围的两个顶点，所述图像数据处理模块将所述灰阶值W1、W2及W3中对应顶点为所述第二色域范围顶点的两个灰阶值作为所述像素转换后两个第二转换灰阶值，所述两个第二转换灰阶值的代表的颜色与对应顶点代表的颜色相同，所 述图像数据处理模块还将除了所述两个第二转换灰阶值代表的颜色以外的一个颜色的灰阶值设置为0，并将所述两个第二转换灰阶值及所述一个灰阶值0作为所述第二子数据。When the three vertices of the sub-region are one vertex of the first color gamut range and two vertices of the second color gamut range, the image data processing module sets the grayscale values W1, W2, and W3 The two corresponding gray scale values of the vertices of the second color gamut are the two second converted gray scale values after the pixel conversion, and the representative colors of the two second converted gray scale values and corresponding vertices The color of the representative is the same, The image data processing module further sets a grayscale value of one color other than the color represented by the two second converted grayscale values to 0, and sets the two second converted grayscale values and the one gray The order value 0 is used as the second sub data.
  5. 如权利要求2所述的显示设备，其特征在于：定义顶点A1、A2、A3及A4，所述A1与A2为所述第一色域范围的两个顶点，所述A3与A4为第二色域范围的两个顶点，所述A1与A4代表的颜色相同，所述A2与A3代表的颜色相同；A display device as claimed in claim 2, wherein vertices A1, A2, A3 and A4 are defined, said A1 and A2 being two vertices of said first gamut range, said A3 and A4 being second Two vertices of the gamut range, the colors represented by A1 and A4 being the same, and the colors represented by A2 and A3 are the same;
    若所述像素的色坐标位于A1、A4、A3构成的三角形区域中也位于A1、A4、A2构成的三角形区域中，则所述图像数据处理模块将所述A1、A4、A2三个顶点作为所述顶点N1、N2及N3以将灰阶值M1、M2及M3转换为灰阶值W1、W2及W3；If the color coordinates of the pixel are located in a triangular region formed by A1, A4, and A3 and are also located in a triangular region formed by A1, A4, and A2, the image data processing module takes the three vertices A1, A4, and A2 as The vertices N1, N2, and N3 convert the grayscale values M1, M2, and M3 into grayscale values W1, W2, and W3;
    若所述像素的色坐标位于A1、A2、A3构成的三角形区域中也位于A2、A3、A4构成的三角形区域中，则所述图像数据处理模块将所述A1、A2、A3三个顶点作为所述顶点N1、N2及N3以将灰阶值M1、M2及M3转换为灰阶值W1、W2及W3；If the color coordinates of the pixel are located in a triangular region formed by A1, A2, and A3 and are also located in a triangular region formed by A2, A3, and A4, the image data processing module takes the three vertices A1, A2, and A3 as The vertices N1, N2, and N3 convert the grayscale values M1, M2, and M3 into grayscale values W1, W2, and W3;
    若所述像素的色坐标位于A1、A4、A3构成的三角形区域中也位于A1、A2、A3构成的三角形区域中，则所述图像数据处理模块将所述A1、A4、A3或者A1、A2、A3三个顶点作为所述顶点N1、N2及N3以将灰阶值M1、M2及M3转换为灰阶值W1、W2及W3；If the color coordinates of the pixel are located in a triangular region formed by A1, A4, and A3 and are also located in a triangular region formed by A1, A2, and A3, the image data processing module will be the A1, A4, A3, or A1, A2. The three vertices of A3 are used as the vertices N1, N2, and N3 to convert the grayscale values M1, M2, and M3 into grayscale values W1, W2, and W3;
    若所述像素的色坐标位于A1、A4、A3构成的三角形区域中也位于A2、A3、A4构成的三角形区域中，则所述图像数据处理模块将所述A1、A4、A3或者A2、A3、A4三个顶点作为所述顶点N1、N2及N3以将灰阶值M1、M2及M3转换为灰阶值W1、W2及W3。If the color coordinates of the pixel are located in a triangular region formed by A1, A4, and A3 and are also located in a triangular region formed by A2, A3, and A4, the image data processing module will be the A1, A4, A3, or A2, A3. The three vertices A4 are used as the vertices N1, N2, and N3 to convert the grayscale values M1, M2, and M3 into grayscale values W1, W2, and W3.
  6. 如权利要求1所述的显示设备，其特征在于：若该幅待显示图像的图像数据包括像素的色坐标位于所述第一色域范围内的第二部分数据，所述图像数据处理模块将所述第二部分数据转换为基于所述第一色域范围的第三子数据；所述光调制装置依据所述第三子数据调制所述第一光获得第三图像光。The display device according to claim 1, wherein if the image data of the image to be displayed includes the second portion of data in which the color coordinates of the pixel are within the first color gamut, the image data processing module The second partial data is converted into a third sub-data based on the first color gamut range; the light modulating device modulates the first light according to the third sub-data to obtain a third image light.
  7. 如权利要求6所述的显示设备，其特征在于：所述图像数据处理模块依据所述第二部分数据的各像素的灰阶值、所述第一色域范围与所述第二色域范围的各顶点的色坐标计算所述各像素基于所述第一色域范围的灰阶值从而得到所述基于所述第一色域范围的第三子数据。 The display device according to claim 6, wherein the image data processing module is configured to determine a grayscale value, a first color gamut range, and a second color gamut range of each pixel of the second partial data. The color coordinates of each vertex are calculated, and the respective sub-pixels are based on the grayscale value of the first color gamut range to obtain the third sub-data based on the first color gamut range.
  8. 如权利要求7所述的显示设备，其特征在于：所述图像数据处理模块依据所述第二部分数据的各像素的灰阶值、所述第二色域范围的各顶点的色坐标计算各像素的三刺激值，再利用所述三刺激值与所述第一色域范围的各顶点的色坐标计算各像素基于所述第一色域范围的灰阶值从而获得所述第三子数据。The display device according to claim 7, wherein the image data processing module calculates each of the grayscale values of the pixels of the second partial data and the color coordinates of the vertices of the second colorrange range. a tristimulus value of the pixel, and calculating a grayscale value of each pixel based on the first color gamut range by using the tristimulus value and color coordinates of each vertex of the first color gamut range to obtain the third sub data .
  9. 如权利要求1所述的显示设备，其特征在于：若该幅待显示图像的图像数据包括像素的色坐标位于所述第二色域范围的边界线上的第三部分数据，所述图像数据处理模块输出所述第三部分数据；所述光调制装置依据所述第三部分数据调制所述第二光获得第四图像光。The display device according to claim 1, wherein if the image data of the image to be displayed comprises a third portion of data of a color coordinate of the pixel on a boundary line of the second color gamut range, the image data The processing module outputs the third portion of data; the light modulating device modulates the second light according to the third portion of data to obtain a fourth image light.
  10. 如权利要求1所述的显示设备，其特征在于：所述图像数据处理模块依据所述各像素各颜色的灰阶值及所述第二色域范围的色坐标计算各像素的三刺激值从而获知各像素的色坐标，并依据所述各像素的色坐标判断该幅待显示图像的色域范围。The display device according to claim 1, wherein the image data processing module calculates a tristimulus value of each pixel according to a grayscale value of each color of each pixel and a color coordinate of the second color gamut range. The color coordinates of each pixel are known, and the color gamut range of the image to be displayed is determined according to the color coordinates of each pixel.
  11. 如权利要求1所述的显示设备，其特征在于，所述第一光源发出的第一光包括三基色，所述第一光的第一基色的色坐标为xr、yr，亮度为Yr，所述第一光的第二基色的色坐标为xg、yg，亮度为Yg；所述第一光的第三基色的色坐标为xb，yb，亮度为Yb，所述第二光源发出的第二光包括三基色，所述第二光的第一基色的色坐标为xR、yR，亮度为YR，所述第二光的第二基色的色坐标为xG、yG，亮度为YG；所述第二光的第三基色的色坐标为xB，yB，亮度为YB，所述第一光与所述第二光的色坐标及亮度满足以下公式：The display device according to claim 1, wherein the first light emitted by the first light source comprises three primary colors, and the first primary colors of the first light have color coordinates x r , y r and brightness Y r , the color coordinates of the second primary color of the first light are x g , y g , and the brightness is Y g ; the color coordinates of the third primary color of the first light are x b , y b , and the brightness is Y b , The second light emitted by the second light source comprises three primary colors, the first primary color of the second light has a color coordinate of x R , y R , the brightness is Y R , and the color coordinates of the second primary color of the second light X G , y G , the brightness is Y G ; the color coordinates of the third primary color of the second light are x B , y B , the brightness is Y B , the color coordinates of the first light and the second light And the brightness meets the following formula:
    Figure PCTCN2017114721-appb-100001
    Figure PCTCN2017114721-appb-100001
  12. 如权利要求1所述的显示设备，其特征在于，所述第一色域范围为DC I色域范围，所述第二色域范围为REC色域范围。The display device according to claim 1, wherein the first color gamut range is a DC I color gamut range, and the second color gamut range is a REC color gamut range.
  13. 如权利要求1所述的显示设备，其特征在于，所述光调制装置包括空间光调制器，所述空间光调制器分时依据所述图像数据处理模块输出的数据调制对应的光来产生对应的图像光。The display device according to claim 1, wherein said light modulating means comprises a spatial light modulator, said spatial light modulator time-sharing according to data output by said image data processing module modulating corresponding light to generate a corresponding Image light.
  14. 如权利要求1、6、9任意一项所述的显示设备，其特征在于，所述光调制装置包括第一空间光调制器与第二空间光调制器，所述第一空间光调制器用 于接收对应的数据调制所述第一光产生对应的图像光，所述第二空间光调制器用于接收对应的数据调制所述第二光产生对应的图像光。The display device according to any one of claims 1 to 6, wherein said light modulating means comprises a first spatial light modulator and a second spatial light modulator, said first spatial light modulator And modulating the first light to generate image light corresponding to the corresponding data, and the second spatial light modulator is configured to receive corresponding data to modulate the image light corresponding to the second light generation.
  15. 如权利要求1所述的显示设备，其特征在于，A display device according to claim 1, wherein
    所述第一光源包括用于发出激发光的激发光源及具有荧光材料且接收所述激发光并发出所述第一光的色轮或者所述第一光源包括用于发出所述第一光的发光二极管，所述第二光源包括激光器，所述激光器发出激光作为所述第二光。The first light source includes an excitation light source for emitting excitation light and a color wheel having a fluorescent material and receiving the excitation light and emitting the first light, or the first light source includes a light source for emitting the first light a light emitting diode, the second light source comprising a laser, the laser emitting a laser light as the second light.
  16. 如权利要求1或9所述的显示设备，其特征在于，所述显示设备还包括光中继***，所述第二光具有三种颜色，设该幅待显示图像的分辨率为a*b，The display device according to claim 1 or 9, wherein the display device further comprises an optical relay system, wherein the second light has three colors, and the resolution of the image to be displayed is a*b ,
    若该幅待显示图像的图像数据需要使用所述第二光进行调制的三个颜色的像素个数均为a*b，所述第二光源提供至所述光调制装置的所述第二光的三种颜色的亮度分别为第一标准亮度、第二标准亮度及第三标准亮度；If the image data of the image to be displayed requires the number of pixels of the three colors modulated by the second light to be a*b, the second light source is supplied to the second light of the light modulation device The brightness of the three colors is the first standard brightness, the second standard brightness, and the third standard brightness;
    若该幅待显示图像的图像数据需要使用所述第二光进行调制的三个颜色的像素个数为i、j、k个，所述光中继***从所述光调制装置回收未被利用的所述第二光使得所述回收的第二光被提供所述光调制装置再次利用，所述第二光源提供至所述光调制装置的所述第二光的三种颜色的亮度分别为第一标准亮度的i/a*b、第二标准亮度的j/a*b及第三标准亮度的k/a*b。If the image data of the image to be displayed requires the number of pixels of the three colors modulated by the second light to be i, j, k, the optical relay system is recovered from the light modulation device and is not utilized. The second light causes the recovered second light to be reused by the light modulating device, and the brightness of the three colors of the second light supplied to the light modulating device by the second light source is respectively i/a*b of the first standard brightness, j/a*b of the second standard brightness, and k/a*b of the third standard brightness.
  17. 一种显示方法，其特征在于，所述显示方法包括如下步骤：A display method, characterized in that the display method comprises the following steps:
    提供第一光，所述第一光用于调制第一色域范围的图像；Providing a first light for modulating an image of a first color gamut;
    提供第二光，所述第二光的色域范围较所述第一光宽，所述第二光用于单独调制或者配合所述第一光共同调制所述第一色域范围以外的图像；Providing a second light, the second light having a color gamut wider than the first light, the second light being used for separately modulating or cooperating with the first light to modulate an image outside the first color gamut ;
    接收一幅待显示图像的原始图像数据并依据该幅待显示图像的原始图像数据判断该幅待显示图像的色域范围，所述图像数据是基于第二色域范围的图像数据且包括各像素各颜色的灰阶值，若该幅待显示图像的原始图像数据包括像素的色坐标位于预定区域内的第一部分数据，将所述第一部分数据转换为基于所述第一色域范围的第一子数据与基于所述第二色域范围的第二子数据，其中所述第二色域范围覆盖所述第一色域范围且具有超出所述第一色域范围的部分，所述预定区域为所述第一色域范围之外且所述第二色域范围的边界线内侧不包括所述边界线的区域；Receiving an original image data of an image to be displayed and determining a color gamut range of the image to be displayed according to the original image data of the image to be displayed, the image data being image data based on a second color gamut range and including each pixel a grayscale value of each color, if the original image data of the image to be displayed includes the first partial data in which the color coordinates of the pixel are located in the predetermined area, converting the first partial data into the first based on the first color gamut range a sub-data and a second sub-data based on the second gamut range, wherein the second gamut range covers the first gamut range and has a portion that exceeds the first gamut range, the predetermined area An area outside the first color gamut range and the inner side of the boundary line of the second color gamut range does not include the boundary line;
    依据所述第一子数据调制第一光获得第一图像光，依据所述第二子数据调 制第二光获得第二图像光，及Accommodating the first light according to the first sub data to obtain the first image light, according to the second sub data Making a second light to obtain a second image light, and
    将所述第一图像光与所述第二图像光合成以显示图像。 The first image light and the second image light are combined to display an image.
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