WO2016106789A1 - 液晶显示面板及其驱动方法 - Google Patents

液晶显示面板及其驱动方法 Download PDF

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Publication number
WO2016106789A1
WO2016106789A1 PCT/CN2015/070186 CN2015070186W WO2016106789A1 WO 2016106789 A1 WO2016106789 A1 WO 2016106789A1 CN 2015070186 W CN2015070186 W CN 2015070186W WO 2016106789 A1 WO2016106789 A1 WO 2016106789A1
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WIPO (PCT)
Prior art keywords
image
sub
display
pixel data
pixels
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PCT/CN2015/070186
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English (en)
French (fr)
Inventor
纪飞林
陈伟
谭小平
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深圳市华星光电技术有限公司
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Priority to US14/433,639 priority Critical patent/US9672777B2/en
Publication of WO2016106789A1 publication Critical patent/WO2016106789A1/zh

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003Display of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007Display of intermediate tones
    • G09G3/2074Display of intermediate tones using sub-pixels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0439Pixel structures
    • G09G2300/0452Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0257Reduction of after-image effects
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/06Colour space transformation

Definitions

  • the present invention relates to the field of display driving technologies, and in particular, to a liquid crystal display panel and a driving method thereof.
  • liquid crystal display panels are increasingly pursuing high resolution, while high resolutions require more pixels.
  • the transmittance of the screen will also become lower.
  • Only by increasing the brightness of the backlight can the high resolution be achieved.
  • the rate the original brightness of the display panel is maintained, and increasing the brightness of the backlight causes an increase in the cost of the product, and there are also many problems in terms of power consumption, product heat generation, and the like.
  • a white sub-pixel ie, the RGBW pixel structure shown in FIG. 2 is added to the display panel of the RGB pixel structure shown in FIG. 1 to increase the transmittance of the display panel, and the brightness can be increased by about 1/3. . Therefore, when it has the same brightness as the RGB display panel, RGBW can reduce the backlight brightness by 1/3 and save 1/3 of the backlight power consumption.
  • 1 is a schematic diagram of RGB pixel arrangement in the first liquid crystal display panel of the prior art
  • FIG. 2 is a schematic diagram of RGBW pixel arrangement in the second liquid crystal display panel of the prior art.
  • the invention provides a liquid crystal display panel and a driving method thereof to solve the boundary blur problem in the prior art.
  • the present invention provides a driving method of a liquid crystal display panel, wherein the liquid crystal display panel includes a plurality of display pixels, each of which includes a red sub display pixel, a green sub display pixel, a blue sub display pixel, and a white color.
  • Sub-display pixel the driving method includes: receiving image data, wherein the image data is used to represent an image to be displayed including a plurality of image pixels; calculating red sub-image pixel data, green sub-image pixel data respectively corresponding to the image pixels according to the image data, Blue sub-image pixel data and white sub-image pixel data; gray scale values of red sub-image pixels, green sub-image pixels, and blue sub-image pixels of image pixels are used as red sub-image pixel data, green sub-image pixel data, and blue The color sub-image pixel data, and the smallest gray scale value is used as the white sub-image pixel data; the six image pixels are used as the loop unit, and the red sub-display pixel data corresponding to the three display pixels and the green sub-display are generated in each loop unit.
  • the step of generating, by using six image pixels as a loop unit, generating red sub-display pixel data, green sub-display pixel data, blue sub-display pixel data, and white sub-display pixel data corresponding to three display pixels in each loop unit includes Sharing the red sub-image pixel data and the green sub-image pixel data of the first image pixel and the second image pixel into the red sub-display pixel data and the green sub-s of the first display pixel among the three display pixels Displaying pixel data; sharing blue sub-image pixel data and white sub-image pixel data of the second image pixel and the third image pixel of the six image pixels into blue sub-display pixel data and white sub-display of the first display pixel Pixel data; red sub-image pixel data and green sub-image pixel data of the third image pixel and the fourth image pixel of the six image pixels are shared into red sub-display pixel data of the second display pixel of the three display pixels and Green sub display pixel data; fourth image pixel and fifth
  • the six image pixels are adjacently disposed along the direction of the image line to be displayed, and the three display pixels are adjacently disposed along the row direction of the liquid crystal panel.
  • the present invention further provides a driving method of a liquid crystal display panel, wherein the liquid crystal display panel includes a plurality of display pixels, each display pixel includes a red sub display pixel, a green sub display pixel, a blue sub display pixel, and a white sub display pixel, the driving method includes: receiving image data, wherein the image data is used to represent an image to be displayed including a plurality of image pixels; and calculating red sub image pixel data and green sub image pixel data respectively corresponding to the image pixels according to the image data a blue sub-image pixel data and a white sub-image pixel data; wherein the first predetermined number of image pixels are in a loop unit, and each of the loop units generates a red sub-display corresponding to the second predetermined number of display pixels by pixel sharing Pixel data, green sub-display pixel data, blue sub-display pixel data, and white sub-display pixel data, wherein the first predetermined number is greater than a second predetermined number; using
  • the step of calculating red sub-image pixel data, green sub-image pixel data, blue sub-image pixel data, and white sub-image pixel data respectively corresponding to the image pixels according to the image data includes: red sub-image pixels of the image pixels, and green
  • the grayscale values of the sub-image pixels and the blue sub-image pixels are used as red sub-image pixel data, green sub-image pixel data, and blue sub-image pixel data, and the smallest grayscale value is used as white sub-image pixel data.
  • the first predetermined number of image pixels are used as a loop unit, and each of the loop units generates red sub-display pixel data, green sub-display pixel data, and blue sub-subject corresponding to the second predetermined number of display pixels respectively by pixel sharing manner.
  • the step of displaying pixel data and white sub-display pixel data includes: generating, by each of the loop units, red sub-display pixel data, green sub-display pixel data, and blue sub-display corresponding to three display pixels in each loop unit. Pixel data and white sub-display pixel data.
  • the step of generating, by using six image pixels as a loop unit, generating red sub-display pixel data, green sub-display pixel data, blue sub-display pixel data, and white sub-display pixel data corresponding to three display pixels in each loop unit includes Sharing the red sub-image pixel data and the green sub-image pixel data of the first image pixel and the second image pixel into the red sub-display pixel data and the green sub-s of the first display pixel among the three display pixels Displaying pixel data; sharing blue sub-image pixel data and white sub-image pixel data of the second image pixel and the third image pixel of the six image pixels into blue sub-display pixel data and white sub-display of the first display pixel Pixel data; red sub-image pixel data and green sub-image pixel data of the third image pixel and the fourth image pixel of the six image pixels are shared into red sub-display pixel data of the second display pixel of the three display pixels and Green sub display pixel data; fourth image pixel and fifth
  • the six image pixels are adjacently disposed along the direction of the image line to be displayed, and the three display pixels are adjacently disposed along the row direction of the liquid crystal panel.
  • the present invention further provides a liquid crystal display panel including a plurality of display pixels, each display pixel including a red sub display pixel, a green sub display pixel, a blue sub display pixel, and a white sub display pixel, wherein the phase
  • the red sub-display pixels, the blue sub-display pixels, the green sub-display pixels, and the white sub-display pixels in the adjacent display pixels of the adjacent row are respectively arranged in the same column.
  • the liquid crystal display panel further includes: an image buffer unit, configured to receive image data, wherein the image data is used to represent an image to be displayed including a plurality of image pixels; and an image processor is configured to calculate, respectively, corresponding to the image pixels according to the image data Red sub-image pixel data, green sub-image pixel data, blue sub-image pixel data, and white sub-image pixel data, and the first predetermined number of image pixels are used as a loop unit, and each loop unit is generated by pixel sharing respectively.
  • an image buffer unit configured to receive image data, wherein the image data is used to represent an image to be displayed including a plurality of image pixels
  • an image processor is configured to calculate, respectively, corresponding to the image pixels according to the image data Red sub-image pixel data, green sub-image pixel data, blue sub-image pixel data, and white sub-image pixel data, and the first predetermined number of image pixels are used as a loop unit, and each loop unit is generated by pixel sharing respectively.
  • the image processor uses the grayscale values of the red sub-image pixels, the green sub-image pixels, and the blue sub-image pixels of the image pixels as the red sub-image pixel data, the green sub-image pixel data, and the blue sub-image pixel data, and The smallest grayscale value is used as white sub-image pixel data.
  • the image processor uses six image pixels as a loop unit, and generates red sub-display pixel data, green sub-display pixel data, blue sub-display pixel data, and white sub-display pixel data corresponding to three display pixels in each loop unit. .
  • the image processor performs the steps of sharing the first image pixel of the six image pixels and the red sub image pixel data and the green sub image pixel data of the second image pixel into the first display pixel of the three display pixels.
  • the red sub display pixel data and the green sub display pixel data; the second image pixel of the six image pixels and the blue sub image pixel data of the third image pixel and the white sub image pixel data are shared into the blue of the first display pixel Sub-display pixel data and white sub-display pixel data; share red sub-image pixel data and green sub-image pixel data of the third image pixel and the fourth image pixel of the six image pixels into a second display of the three display pixels
  • the red sub-pixel of the pixel displays the pixel data and the green sub-display pixel data; the fourth image pixel of the six image pixels and the blue sub-image pixel data of the fifth image pixel and the white sub-image pixel data are shared into the second display pixel Blue sub display pixel data and white sub display
  • the invention has the beneficial effects that the liquid crystal display panel and the driving method of the present invention can effectively improve the boundary blur phenomenon by means of image pixel sharing, which is different from the prior art.
  • FIG. 1 is a schematic view showing an arrangement of RGB pixels in a first liquid crystal display panel of the prior art
  • FIG. 2 is a schematic view showing an arrangement of RGBW pixels in a second liquid crystal display panel of the prior art
  • FIG. 3 is a schematic flow chart of an embodiment of a driving method of a liquid crystal display panel of the present invention.
  • FIG. 4 is a schematic diagram of a process of obtaining sub-image pixel data corresponding to image pixels according to image data in the driving method of the present invention
  • FIG. 5 is a schematic diagram of a process of generating sub-display pixel data corresponding to three display pixels by sharing manner among six image pixels in the driving method of the present invention
  • FIG. 6 is a schematic structural view of an embodiment of a liquid crystal display panel of the present invention.
  • FIG. 7 is a schematic view showing a first pixel arrangement of display pixels in a liquid crystal display panel of the present invention.
  • FIG. 3 is a schematic flow chart of an embodiment of a driving method of a liquid crystal display panel of the present invention.
  • the liquid crystal display panel in this embodiment includes a plurality of display pixels DP (Display Pixel), each display pixel includes a red sub display pixel DP_R, a green sub display pixel DP_G, a blue sub display pixel DP_B, and a white sub display pixel DP_W.
  • DP Display Pixel
  • the liquid crystal display panel is used to display an image, specifically, a plurality of image pixels IP (Image) corresponding to displaying an image to be displayed through a plurality of display pixels DP of the liquid crystal display panel.
  • the display pixels DP corresponding to the image pixels IP correspondingly have four sub-display pixels DP_R, DP_G, DP_B, and DP_W for use in the present embodiment. Realize the display of different colors.
  • the gray scales of the four sub display pixels DP_R, DP_G, DP_B, and DP_W are controlled such that the display pixels DP can exhibit different colors, and then the display of the image is realized.
  • the liquid crystal display panel of the present embodiment has a white sub-display pixel DP_W.
  • white light is allowed to pass, so the transmittance is higher than that of the other sub-display pixels, and the liquid crystal display can be correspondingly improved. The brightness of the panel.
  • S301 Receive image data, and the image data is used to represent an image to be displayed of a plurality of image pixels.
  • the display pixel DP of the liquid crystal display panel corresponds to the image pixel IP of the image to be displayed.
  • the liquid crystal display panel needs to clarify the color displayed by each display pixel DP, so the liquid crystal display panel is processed by data processing.
  • the color that each display pixel DP needs to display is determined, and display is realized by data driving the display pixel DP.
  • the above actions of the liquid crystal display panel correspond to the image to be displayed. Therefore, it is first necessary to receive the image data IPD of the image to be displayed.
  • the image data IPD divides the image into a plurality of image pixels IP, and then parses the image pixel IP.
  • the resulting image data IPD represents the image to be displayed of the plurality of image pixels IP.
  • S302 Calculate red sub-image pixel data, green sub-image pixel data, blue sub-image pixel data, and white sub-image pixel data respectively corresponding to the image pixels according to the image data.
  • FIG. 4 is a schematic diagram of a process of obtaining sub-image pixel data corresponding to image pixels according to image data in the driving method of the present invention. Since the image data IPD corresponds to the image pixel IP, the sub-image pixel data corresponds to the sub-image pixel, which is represented by the image pixel IP in FIG. 4 for convenience of description, and FIG. 4(1) uses RGB three sub-image pixel data to indicate that the image is received. The image data is calculated based on the image data, and the RGBW four sub-image pixel data shown in Fig. 4 (2) is obtained.
  • the grayscale values of the red sub-image pixel IP_R, the green sub-image pixel IP_G, and the blue sub-image pixel IP_B of the image pixel IP are taken as the red sub-image pixel data IPD_R, the green sub-image pixel data IPD_G, and the blue sub-image.
  • the pixel data IPD_B, and the smallest grayscale value is taken as the white sub-image pixel data IPD_W.
  • the gray scale value can be used as the data to drive the sub display pixel to realize the effective display of the display pixel DP, and the gray scale of the sub image pixel
  • the value is used as sub-image pixel data.
  • the white sub-image pixel data IPD_W since the corresponding white sub-image pixel IP_W is for improving the transmittance, the minimum gray-scale value is used as the white sub-image pixel data IPD_W in the embodiment, and the minimum gray-scale value is not selected. It will affect the saturation of the display pixel DP too much, and at the same time it can have a relatively high transmittance.
  • the white sub-image pixel IP_W may be assigned a certain grayscale value by an image processing algorithm, and then the grayscale value is used as the white sub-image pixel data IPD_W.
  • the first predetermined number of image pixels are used as a loop unit, and each of the loop units generates red sub-display pixel data, green sub-display pixel data, and blue sub-subject corresponding to the second predetermined number of display pixels respectively by pixel sharing manner.
  • the pixel data and the white sub-display pixel data are displayed, wherein the first predetermined number is greater than the second predetermined number.
  • the image pixel data IPD should also correspond to the display pixel DP. Therefore, it is necessary to generate red sub-display pixel data DPD_R, green sub-display pixel data DPD_G, and blue sub-display respectively corresponding to the display pixel DP.
  • the pixel data DPD_B and the white sub-display pixel data DPD_W drive the sub-display pixels.
  • the image pixel IP of the first predetermined number A is processed as a loop unit, and each loop unit generates sub-display pixel data respectively corresponding to the display pixels DP of the second predetermined number B by the pixel sharing manner, wherein A is greater than B.
  • the number b of sub-display pixels on the liquid crystal display panel is made smaller than or equal to the number a of sub-image pixels divided by RGB. Therefore, in the liquid crystal display panel of the present embodiment, compared with the conventional liquid crystal display panel of RGB, the same or higher image resolution can be achieved by using a smaller number of pixels, and the number of pixels makes the process of the liquid crystal display panel more. Easy, the corresponding yield rate is higher in the production process, and the cost is saved in disguise. At the same time, it can effectively improve the boundary blur phenomenon
  • the first predetermined number is set to six
  • A 6, and six image pixels are adjacently arranged along the direction of the image line to be displayed
  • the second predetermined number is set to three.
  • B 3, three display pixels are adjacently arranged along the row direction of the liquid crystal panel.
  • the six image pixels are used as a loop unit, and red sub-display pixel data, green sub-display pixel data, blue sub-display pixel data, and white sub-display pixel data corresponding to three display pixels are generated in each loop unit.
  • FIG. 5 is a schematic diagram of a process of generating sub-display pixel data corresponding to three display pixels by sharing manner among six image pixels in the driving method of the present invention.
  • the display pixel data DPD is also represented by the display pixel DP in FIG.
  • step S302 The six image pixels are subjected to the calculation process in step S302 (as shown in FIG. 4) to obtain corresponding sub-image pixel data, and thereafter the sub-image pixel data is shared to generate corresponding sub-display pixel data.
  • the specific sharing process will be described below with reference to FIG. 5.
  • IP1, IP2, ..., IP6 image pixels
  • sub-image pixels are represented by a block diagram having RGBW, and are represented by IP1_R in the following description
  • corresponding sub-picture pixel data is represented by IPD1_R
  • the other sub-image pixels are similar; the three display pixels are represented as DP1, DP2, and DP3, respectively, and the sub-display pixels are also represented by a block diagram having RGBW, which is denoted by DP1_R in the following description, and the corresponding sub-display pixel data is represented by DPD1_R ( Other sub display pixels are similar).
  • the specific sharing process is as follows:
  • the red image sub-pixel data IPD1_R, IPD2_R and the green sub-image pixel data IPD1_G, IPD2_G of the first image pixel IP1 and the second image pixel IP2 of the six image pixels are shared into the first display pixel DP1 of the three display pixels.
  • the second sub-pixel pixel IP2 of the six image pixels and the blue sub-image pixel data IPD2_B, IPD3_B and the white sub-image pixel data IPD2_W, IPD3_W of the third image pixel IP3 are shared into the blue sub-display pixels of the first display pixel DP1.
  • the third image pixel IP3 of the six image pixels and the red sub-image pixel data IPD3_R, IPD4_R and the green sub-image pixel data IPD3_G, IPD4_G of the fourth image pixel IP4 are shared into the second display pixel DP2 of the three display pixels.
  • the red sub-image pixel data IPD5_R, IPD6_R and the green sub-image pixel data IPD5_G, IPD6_G of the fifth image pixel IP5 and the sixth image pixel IP6 of the six image pixels are shared into the third display pixel DP3 of the three display pixels.
  • the number of display pixels of the liquid crystal display panel is reduced to 2/3 of the number of sub-display pixels in the conventional liquid crystal display panel, and the two display panels are capable of parsing the same number of image pixels.
  • the corresponding liquid crystal display panel process in the present embodiment is easier, which results in a higher yield rate in the production process and also saves costs in disguise.
  • another number of image pixels may be selected as the loop unit, and the number is preferably an even number or an odd number.
  • the even numbers 4 and 8 as an example, the number of image pixels of 4/8 may also be adjacently arranged along the direction of the image column to be displayed, and the corresponding 2/4 display pixels are adjacently arranged along the column direction of the liquid crystal panel.
  • the sub-display pixel is driven by the sub-display pixel data, so that the sub-display pixel displays different colors having a certain gray level, and then the image is displayed.
  • the liquid crystal display panel includes a plurality of display pixels, and each display pixel includes four sub-display pixels of red, green, blue, and white, and the added The white sub-display pixel can effectively improve the light transmittance of the display panel.
  • the driving method of the liquid crystal display panel includes the following steps: first receiving image data of an image to be displayed capable of representing a plurality of image pixels, and calculating and image according to the image data.
  • Sub-image pixel data corresponding to the pixel then, using a first predetermined number of image pixels as a loop unit, and generating, in each loop unit, sub-display pixel data corresponding to the second predetermined number of display pixels by pixel sharing, and finally Using the sub-display pixel data to drive the sub-display pixels of the corresponding display pixels for display, the first predetermined number is greater than the second predetermined number, and the pixel number of the display panel can be reduced by the pixel sharing manner, and the number of pixels is small. Provides high image resolution and can be effectively improved Blurring boundaries
  • FIG. 6 is a schematic structural diagram of an embodiment of a liquid crystal display panel of the present invention.
  • the present embodiment provides a liquid crystal display panel 600 including a plurality of display pixels 601, an image buffer unit 602, an image processor 603, and a display driver 604.
  • FIG. 7 is a schematic diagram of an embodiment of a pixel arrangement of display pixels in the liquid crystal display panel of the present invention.
  • Each display pixel in Figure 7 is RGBW.
  • the image buffer unit 602 is configured to receive image data, wherein the image data is used to represent an image to be displayed that includes a plurality of image pixels.
  • the image processor 603 is configured to calculate, according to the image data in the image buffer unit 602, red sub image pixel data, green sub image pixel data, blue sub image pixel data, and white sub image pixel data respectively corresponding to the image pixels, and
  • the first predetermined number of the image pixels are used as a loop unit, and each of the loop units generates red sub-display pixel data, green sub-display pixel data, and blue corresponding to the second predetermined number of display pixels 601 by pixel sharing.
  • the image processor 603 uses the grayscale values of the red sub-image pixels, the green sub-image pixels, and the blue sub-image pixels of the image pixels as the red sub-image pixel data, the green sub-image pixel data, and the blue sub-image pixel data, and The minimum grayscale value is used as the white sub-image pixel data.
  • the grayscale value of the white sub-image pixel can also be calculated using the image processing algorithm built in the image processor 603, and then the grayscale value is the white sub-image pixel data.
  • the image processor 603 uses six image pixels as a loop unit, and generates red sub-display pixel data, green sub-display pixel data, blue sub-display pixel data, and white sub-display pixels corresponding to three display pixels in each loop unit. data.
  • the display driver 604 is configured to drive the red sub display pixel, the green sub display pixel, and the blue of the corresponding display pixel 601 by using the red sub display pixel data, the green sub display pixel data, the blue sub display pixel data, and the white sub display pixel data respectively.
  • the flow of the display of the liquid crystal display panel 600 is similar to the flow in the embodiment of the driving method of the present invention, and the functions and working processes of the above various parts correspond to the respective steps in the embodiment of the driving method of the present invention, and therefore the same portions will not be described again. .
  • step S303 the process of performing pixel sharing by the image processor 603 is similar to step S303 in the embodiment of the driving method of the present invention, and thus will not be described again.
  • the liquid crystal display panel of the present embodiment has the sub-pixels W, which can effectively improve the transmittance; and the red sub-display pixels R, the green sub-display pixels G, and the blue sub-display pixels B of the adjacent display pixels of adjacent rows And the white sub-display pixels W are respectively arranged in the same column, which avoids the edge blur problem caused by the interlaced setting, and ensures better display quality.

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Abstract

一种液晶显示面板(600)及其驱动方法。液晶显示面板(600)包括显示像素(601),每一显示像素(601)包括红、绿、蓝及白色子显示像素。驱动方法包括:接收图像数据,其中图像数据表示包括多个图像像素的待显示图像;根据图像数据计算与图像像素对应的红、绿、蓝及白色子图像像素数据;以第一预定数量的图像像素为循环单元,在每个循环单元通过像素共享方式生成与第二预定数量的显示像素对应的红、绿、蓝及白色子显示像素数据,其中第一预定数量大于第二预定数量;利用红、绿、蓝及白色子显示像素数据驱动对应显示像素的红、绿、蓝及白色子显示像素。通过对图像像素进行共享而有效改善边界模糊现象。

Description

液晶显示面板及其驱动方法
【技术领域】
本发明涉及显示驱动技术领域,特别涉及一种液晶显示面板及其驱动方法。
【背景技术】
当前液晶显示面板越来越追求高分辨率,而高分辨率对应的则需要更多的像素,当像素增多时,画面的透光率也将变低,只有增加背光的亮度才能在达到高分辨率的情况下保持显示面板原本的亮度,而增加背光的亮度会造成产品的成本提高,并且在功率消耗、产品发热等方面也会出现较多的问题。
基于以上考虑,在图1所示RGB像素结构的显示面板中添加白色子像素,(即图2所示的RGBW像素结构),以增加显示面板的穿透率,大约可提高1/3的亮度。因此在与RGB显示面板具有相同亮度时,RGBW可以降低1/3的背光亮度而省1/3的背光功耗。其中图1是现有技术第一种液晶显示面板中RGB像素排列示意图,图2是现有技术第二种液晶显示面板中RGBW像素排列示意图。
然而,由于RGBW显示面板中增加了W子像素,与RGB显示面板相比,相同解析度会增加1/3的子像素,继而相同尺寸的显示面板中子像素的尺寸会减小,相应的制程要求也会变得更高,同样生产条件下,制程良率问题会变得更严重,也变相导致成本的增加,造成较为严重的边沿模糊问题。
【发明内容】
本发明提供一种液晶显示面板及其驱动方法以解决现有技术中的边界模糊问题。
为解决上述问题,本发明提供的一种液晶显示面板的驱动方法,其中液晶显示面板包括多个显示像素,每一显示像素包括红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素,驱动方法包括:接收图像数据,其中图像数据用于表示包括多个图像像素的待显示图像;根据图像数据计算与图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据;将图像像素的红色子图像像素、绿色子图像像素以及蓝色子图像像素的灰阶值作为红色子图像像素数据、绿色子图像像素数据以及蓝色子图像像素数据,并将最小的灰阶值作为白色子图像像素数据;以六个图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据;利用红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据分别驱动对应的显示像素的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素。
其中,以六个图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据的步骤包括:将六个图像像素中的第一图像像素和第二图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第一显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第二图像像素和第三图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第一显示像素的蓝色子显示像素数据和白色子显示像素数据;将六个图像像素中的第三图像像素和第四图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第二显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第四图像像素和第五图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第二显示像素的蓝色子显示像素数据和白色子显示像素数据;将六个图像像素中的第五图像像素和第六图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第三显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第六图像像素和下一循环单元的第一图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第三显示像素的蓝色子显示像素数据和白色子显示像素数据。
其中,六个图像像素沿待显示图像行的方向相邻设置,三个显示像素沿液晶面板的行方向相邻设置。
为解决上述问题,本发明又提供的一种液晶显示面板的驱动方法,其中液晶显示面板包括多个显示像素,每一显示像素包括红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素,驱动方法包括:接收图像数据,其中图像数据用于表示包括多个图像像素的待显示图像;根据图像数据计算与图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据;以第一预定数量的图像像素为循环单元,在每个循环单元通过像素共享方式生成分别与第二预定数量的显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据,其中第一预定数量大于第二预定数量;利用红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据分别驱动对应的显示像素的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素。
其中,根据图像数据计算与图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据的步骤包括:将图像像素的红色子图像像素、绿色子图像像素以及蓝色子图像像素的灰阶值作为红色子图像像素数据、绿色子图像像素数据以及蓝色子图像像素数据,并将最小的灰阶值作为白色子图像像素数据。
其中,以第一预定数量的图像像素为循环单元,在每个循环单元通过像素共享方式生成分别与第二预定数量的显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据的步骤包括:以六个图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据。
其中,以六个图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据的步骤包括:将六个图像像素中的第一图像像素和第二图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第一显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第二图像像素和第三图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第一显示像素的蓝色子显示像素数据和白色子显示像素数据;将六个图像像素中的第三图像像素和第四图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第二显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第四图像像素和第五图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第二显示像素的蓝色子显示像素数据和白色子显示像素数据;将六个图像像素中的第五图像像素和第六图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第三显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第六图像像素和下一循环单元的第一图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第三显示像素的蓝色子显示像素数据和白色子显示像素数据。
其中,六个图像像素沿待显示图像行的方向相邻设置,三个显示像素沿液晶面板的行方向相邻设置。
为解决上述问题,本发明还提供一种液晶显示面板,其包括多个显示像素,每一显示像素包括红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素,其中相邻行的相邻显示像素中的红色子显示像素、蓝色子显示像素、绿色子显示像素以及白色子显示像素分别呈同列设置。
其中,液晶显示面板进一步包括:图像缓存单元,用于接收图像数据,其中图像数据用于表示包括多个图像像素的待显示图像;图像处理器,用于根据图像数据计算与图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据,并以第一预定数量的图像像素为循环单元,在每个循环单元通过像素共享方式生成分别与第二预定数量的显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据,其中第一预定数量大于第二预定数量;显示驱动器,用于利用红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据分别驱动对应的显示像素的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素。
其中,图像处理器将图像像素的红色子图像像素、绿色子图像像素以及蓝色子图像像素的灰阶值作为红色子图像像素数据、绿色子图像像素数据以及蓝色子图像像素数据,并将最小的灰阶值作为白色子图像像素数据。
其中,图像处理器以六个图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据。
其中,图像处理器执行以下步骤:将六个图像像素中的第一图像像素和第二图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第一显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第二图像像素和第三图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第一显示像素的蓝色子显示像素数据和白色子显示像素数据;将六个图像像素中的第三图像像素和第四图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第二显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第四图像像素和第五图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第二显示像素的蓝色子显示像素数据和白色子显示像素数据;将六个图像像素中的第五图像像素和第六图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第三显示像素的红色子显示像素数据和绿色子显示像素数据;将六个图像像素中的第六图像像素和下一循环单元的第一图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第三显示像素的蓝色子显示像素数据和白色子显示像素数据。
本发明的有益效果是:区别于现有技术,本发明的液晶显示面板及驱动方法通过图像像素共享的方式能够有效改善边界模糊现象。
【附图说明】
图1是现有技术第一种液晶显示面板中RGB像素排列示意图;
图2是现有技术第二种液晶显示面板中RGBW像素排列示意图;
图3是本发明液晶显示面板的驱动方法的实施方式的流程示意图;
图4是本发明驱动方法中根据图像数据得到与图像像素对应的子图像像素数据的过程示意图;
图5是本发明驱动方法中六个图像像素通过共享方式生成与三个显示像素对应的子显示像素数据的过程示意图;
图6是本发明液晶显示面板的实施方式的结构示意图;
图7是本发明液晶显示面板中显示像素的第一种像素排列示意图。
【具体实施方式】
请参阅图3,图3是本发明液晶显示面板的驱动方法的实施方式的流程示意图。本实施方式中的液晶显示面板包括多个显示像素DP (Display Pixel),每一显示像素包括红色子显示像素DP_R、绿色子显示像素DP_G、蓝色子显示像素DP_B以及白色子显示像素DP_W。
其中,液晶显示面板用于实现图像的显示,具体是通过液晶显示面板的多个显示像素DP来对应显示待显示图像的多个图像像素IP (Image Pixel),由于待显示图像的多个图像像素IP具有不同的颜色,因此本实施方式中,图像像素IP对应的显示像素DP相应的具有四个子显示像素DP_R、DP_G、DP_B以及DP_W,以用于实现不同颜色的显示。
本实施方式中通过控制四个子显示像素DP_R、DP_G、DP_B以及DP_W的灰阶,以使得显示像素DP能够展现不同颜色,继而实现图像的显示。并且本实施方式的液晶显示面板中具有白色子显示像素DP_W,当光源穿过白色子显示像素DP_W时,允许白光通过,因此穿透率相对于其他子显示像素较高,能够相应的提高液晶显示面板的亮度。
本实施方式中上述液晶显示面板的驱动方法包括以下步骤:
S301:接收图像数据,图像数据用于表示多个图像像素的待显示图像。
如上文所述液晶显示面板的显示像素DP对应显示待显示图像的图像像素IP,为实现此显示过程,液晶显示面板需要明确每个显示像素DP所显示的颜色,因此液晶显示面板通过数据处理来确定每个显示像素DP需要显示的颜色,并通过数据驱动显示像素DP来实现显示。液晶显示面板的以上动作均是对应待显示图像,因此首先需要接收此待显示图像的图像数据IPD,一般来说图像数据IPD是将图像分为多个图像像素IP,然后对图像像素IP进行解析得到的,因此该图像数据IPD表示多个图像像素IP的待显示图像。
S302:根据图像数据计算与图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据。
为了实现对显示像素DP各个子显示像素的驱动,在接收到图像数据IPD后,还需要根据此图像数据IPD计算图像像素IP对应的红色子图像像素数据IPD_R、绿色子图像像素数据IPD_G、蓝色子图像像素数据IPD_B以及白色子图像像素数据IPD_W。
请参阅图4,图4是本发明驱动方法中根据图像数据得到与图像像素对应的子图像像素数据的过程示意图。由于图像数据IPD对应图像像素IP,子图像像素数据对应子图像像素,为方便描述,在图4中用图像像素IP来表示,图4(1)使用RGB三个子图像像素数据来表示所接收到的图像数据,根据此图像数据计算,得到图4(2)所示的RGBW四个子图像像素数据。
具体来说,将图像像素IP的红色子图像像素IP_R、绿色子图像像素IP_G以及蓝色子图像像素IP_B的灰阶值作为红色子图像像素数据IPD_R、绿色子图像像素数据IPD_G以及蓝色子图像像素数据IPD_B,并将最小的灰阶值作为白色子图像像素数据IPD_W。
由于显示像素DP显示对应的图像像素IP,是通过控制子显示像素的灰阶,因此可利用灰阶值作为数据来驱动子显示像素以实现显示像素DP的有效显示,将子图像像素的灰阶值作为子图像像素数据。对于白色子图像像素数据IPD_W,由于其对应的白色子图像像素IP_W是为了提高穿透率,因此本实施方式中将最小的灰阶值作为白色子图像像素数据IPD_W,选用最小的灰阶值不会过多的影响显示像素DP的饱和度,同时能够具有相对较高的穿透率。其他实施方式中还可以通过图像处理算法为白色子图像像素IP_W分配一定的灰阶值,继而将此灰阶值作为白色子图像像素数据IPD_W。
S303:以第一预定数量的图像像素为循环单元,在每个循环单元通过像素共享方式生成分别与第二预定数量的显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据,其中第一预定数量大于第二预定数量。
为了在液晶显示面板上显示图像,还应将图像像素数据IPD与显示像素DP对应,因此需要生成分别与显示像素DP对应的红色子显示像素数据DPD_R、绿色子显示像素数据DPD_G、蓝色子显示像素数据DPD_B以及白色子显示像素数据DPD_W以驱动子显示像素。
在本实施方式中,以第一预定数量A的图像像素IP为循环单元进行处理,每个循环单元通过像素共享方式生成分别与第二预定数量B的显示像素DP对应的子显示像素数据,其中A大于B。通过此共享方式,使得液晶显示面板上子显示像素的数量b小于或等于以RGB划分的子图像像素的数量a。因此本实施方式中液晶显示面板,相较于RGB的传统液晶显示面板,其使用较少像素数量就能够达到相同或较高的图像解析度,而较少的像素数量使得液晶显示面板的制程更容易,相应的生产过程中良品率更高,也变相的节省了成本。同时,可以有效改善边界模糊现象
对于本步骤S303,下面给出具体实例进行说明,设定第一预订数量为六,A=6,六个图像像素沿待显示图像行的方向相邻设置;设定第二预定数量为三,B=3,三个显示像素沿液晶面板的行方向相邻设置。
然后以此六个图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据。
具体请参阅图4及图5,其中图5是本发明驱动方法中六个图像像素通过共享方式生成与三个显示像素对应的子显示像素数据的过程示意图。图5中也是通过显示像素DP来表示显示像素数据DPD。
其中,六个图像像素经过步骤S302中的计算过程(如图4所示)得到相应的子图像像素数据,此后将子图像像素数据进行共享以生成对应的子显示像素数据。下面结合图5对具体共享过程进行描述。在图5中,六个图像像素分别表示为IP1、IP2……IP6,子图像像素用具有RGBW的框图表示,而在后文描述中用IP1_R表示,且相应的子图像像素数据用IPD1_R表示(其他子图像像素类似);三个显示像素分别表示为DP1、DP2、DP3,子显示像素也采用具有RGBW的框图表示,后文描述中用DP1_R表示,且相应的子显示像素数据用DPD1_R表示(其他子显示像素类似)。具体共享过程如下:
将六个图像像素中的第一图像像素IP1和第二图像像素IP2的红色子图像像素数据IPD1_R、IPD2_R和绿色子图像像素数据IPD1_G、IPD2_G共享成三个显示像素中的第一显示像素DP1的红色子显示像素数据DPD1_R和绿色子显示像素数据DPD1_G;
将六个图像像素中的第二图像像素IP2和第三图像像素IP3的蓝色子图像像素数据IPD2_B、IPD3_B和白色子图像像素数据IPD2_W、IPD3_W共享成第一显示像素DP1的蓝色子显示像素数据DPD1_B和白色子显示像素数据DPD1_W;
将六个图像像素中的第三图像像素IP3和第四图像像素IP4的红色子图像像素数据IPD3_R、IPD4_R和绿色子图像像素数据IPD3_G、IPD4_G共享成三个显示像素中的第二显示像素DP2的红色子显示像素数据DPD2_R和绿色子显示像素数据DPD2_G;
将六个图像像素中的第四图像像素IP4和第五图像像素IP5的蓝色子图像像素数据IPD4_B、IPD5_B和白色子图像像素数据IPD4_W、IPD5_W共享成第二显示像素DP2的蓝色子显示像素数据DPD2_B和白色子显示像素数据DPD2_W;
将六个图像像素中的第五图像像素IP5和第六图像像素IP6的红色子图像像素数据IPD5_R、IPD6_R和绿色子图像像素数据IPD5_G、IPD6_G共享成三个显示像素中的第三显示像素DP3的红色子显示像素数据DPD3_R和绿色子显示像素数据DPD3_G;
将六个图像像素中的第六图像像素IP6和下一循环单元的第一图像像素NextIP1的蓝色子图像像素数据IPD6_B、NextIPD1_B和白色子图像像素数据IPD6_W、NextIPD1_W共享成第三显示像素DP3的蓝色子显示像素数据DPD3_B和白色子显示像素数据DPD3_W。
从图4(1)中可以看出,若是采用传统RGB的液晶显示面板,每个图像像素IP分为三个RGB子图像像素,由于图像像素数量A=6,则子图像像素数量a=3×6=18,则传统的液晶显示面板相应的需要子显示像素数量b=a=18。
而对于本实施方式的液晶显示面板,请参阅图5,其中每个图像像素IP分为四个RGBW子图像像素,同样的图像像素数量A=6,则子图像像素数量a=4×6=24,由于子图像像素通过共享的方式对应子显示像素,因此结合图5以及上述共享过程,子显示像素数量b=a÷2=12,即液晶显示面板需要子显示像素数量为12。
本实施方式中的液晶显示面板子显示像素数量降为传统的液晶显示面板中子显示像素数量的2/3,且两显示面板能够解析同样数量的图像像素。相应的本实施方式中的液晶显示面板制程更加容易,使得生产过程中良品率更高,也变相的节省了成本。
以上步骤S303中还可以选其他数量的图像像素作为循环单元,此数量最好为偶数,也可设置为奇数。以偶数4、8为例,数量为4/8的图像像素也可以沿待显示图像列的方向相邻设置,则相应的2/4个显示像素沿液晶面板的列方向相邻设置。
S304:利用红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据分别驱动对应的显示像素的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素。
得到子显示像素数据后,则利用此子显示像素数据对子显示像素进行驱动,使得子显示像素显示具有一定灰阶的不同颜色,继而实现图像的显示。
综上所述,区别于现有技术,本实施方式液晶显示面板的驱动方法中液晶显示面板包括多个显示像素,每一显示像素包括红、绿、蓝、白四个子显示像素,所增加的白色子显示像素能有效的提高显示面板的光穿透率,该液晶显示面板的驱动方法包括以下步骤:首先接收能够表示多个图像像素的待显示图像的图像数据,根据此图像数据计算与图像像素对应的子图像像素数据;然后再以第一预定数量的图像像素为循环单元,在每个循环单元通过像素共享的方式生成与第二预定数量的显示像素对应的子显示像素数据,最后再利用此子显示像素数据驱动对应的显示像素的子显示像素以进行显示,上述第一预定数量大于第二预定数量,通过此像素共享的方式能够降低显示面板的像素数,在像素数量较少的情况下能够提供较高的图像解析度,并能够有效的改善边界模糊现象
请参阅图6,图6是本发明液晶显示面板的实施方式的结构示意图。本实施方式提供一种液晶显示面板600,其包括多个显示像素601、图像缓存单元602、图像处理器603以及显示驱动器604。
对于多个显示像素601,请参阅图7,图7是本发明液晶显示面板中显示像素的像素排列一实施方式的示意图。图7中每一显示像素为RGBW。
图像缓存单元602,用于接收图像数据,其中图像数据用于表示包括多个图像像素的待显示图像。
图像处理器603,用于根据图像缓存单元602中的图像数据,计算与图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据,并以第一预定数量的所述图像像素为循环单元,在每个循环单元通过像素共享方式生成分别与第二预定数量的显示像素601对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据,其中所述第一预定数量大于所述第二预定数量。
其中,图像处理器603将图像像素的红色子图像像素、绿色子图像像素以及蓝色子图像像素的灰阶值作为红色子图像像素数据、绿色子图像像素数据以及蓝色子图像像素数据,并将最小的灰阶值作为白色子图像像素数据,当然也可以使用图像处理器603内置的图像处理算法计算出白色子图像像素的灰阶值,继而以此灰阶值为白色子图像像素数据。
并且,图像处理器603以六个图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据。
具体执行以下步骤:
将六个图像像素中的第一图像像素和第二图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第一显示像素的红色子显示像素数据和绿色子显示像素数据;
将六个图像像素中的第二图像像素和第三图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第一显示像素的蓝色子显示像素数据和白色子显示像素数据;
将六个图像像素中的第三图像像素和第四图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第二显示像素的红色子显示像素数据和绿色子显示像素数据;
将六个图像像素中的第四图像像素和第五图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第二显示像素的蓝色子显示像素数据和白色子显示像素数据;
将六个图像像素中的第五图像像素和第六图像像素的红色子图像像素数据和绿色子图像像素数据共享成三个显示像素中的第三显示像素的红色子显示像素数据和绿色子显示像素数据;
将六个图像像素中的第六图像像素和下一循环单元的第一图像像素的蓝色子图像像素数据和白色子图像像素数据共享成第三显示像素的蓝色子显示像素数据和白色子显示像素数据。
显示驱动器604,用于利用红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据分别驱动对应的显示像素601的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素。
液晶显示面板600实现显示的流程类似于本发明驱动方法的实施方式中的流程,及上述各个部分的功能及工作过程对应于本发明驱动方法的实施方式中的各个步骤,因此相同部分不再赘述。
需要说明的是,对于图7中示出的像素排列方式,图像处理器603执行像素共享的过程类似于本发明驱动方法的实施方式中的步骤S303,因此不再赘述。
本实施方式中的液晶显示面板具有子像素W,能够有效的提高穿透率;且相邻行的相邻显示像素中的红色子显示像素R、绿色子显示像素G、蓝色子显示像素B以及白色子显示像素W分别呈同列设置,避免了交错设置时导致的边沿模糊问题,保证了较好的显示质量。
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。

Claims (13)

  1. 一种液晶显示面板的驱动方法,其中,所述液晶显示面板包括多个显示像素,每一显示像素包括红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素,所述驱动方法包括:
    接收图像数据,其中所述图像数据用于表示包括多个图像像素的待显示图像;
    根据所述图像数据计算与所述图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据;将所述图像像素的红色子图像像素、绿色子图像像素以及蓝色子图像像素的灰阶值作为所述红色子图像像素数据、所述绿色子图像像素数据以及所述蓝色子图像像素数据,并将最小的灰阶值作为所述白色子图像像素数据;
    以六个所述图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据;
    利用所述红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据分别驱动对应的显示像素的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素。
  2. 根据权利要求1所述的驱动方法,其中,所述以六个所述图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据的步骤包括:
    将所述六个图像像素中的第一图像像素和第二图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第一显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第二图像像素和第三图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第一显示像素的蓝色子显示像素数据和白色子显示像素数据;
    将所述六个图像像素中的第三图像像素和第四图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第二显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第四图像像素和第五图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第二显示像素的蓝色子显示像素数据和白色子显示像素数据;
    将所述六个图像像素中的第五图像像素和第六图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第三显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第六图像像素和下一循环单元的第一图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第三显示像素的蓝色子显示像素数据和白色子显示像素数据。
  3. 根据权利要求2所述的驱动方法,其中,所述六个图像像素沿所述待显示图像行的方向相邻设置,所述三个显示像素沿所述液晶面板的行方向相邻设置。
  4. 一种液晶显示面板的驱动方法,其中,所述液晶显示面板包括多个显示像素,每一显示像素包括红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素,所述驱动方法包括:
    接收图像数据,其中所述图像数据用于表示包括多个图像像素的待显示图像;
    根据所述图像数据计算与所述图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据;
    以第一预定数量的所述图像像素为循环单元,在每个循环单元通过像素共享方式生成分别与第二预定数量的显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据,其中所述第一预定数量大于所述第二预定数量;
    利用所述红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据分别驱动对应的显示像素的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素。
  5. 根据权利要求4所述的驱动方法,其中,所述根据所述图像数据计算与所述图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据的步骤包括:
    将所述图像像素的红色子图像像素、绿色子图像像素以及蓝色子图像像素的灰阶值作为所述红色子图像像素数据、所述绿色子图像像素数据以及所述蓝色子图像像素数据,并将最小的灰阶值作为所述白色子图像像素数据。
  6. 根据权利要求4所述的驱动方法,其中,所述以第一预定数量的所述图像像素为循环单元,在每个循环单元通过像素共享方式生成分别与第二预定数量的显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据的步骤包括:
    以六个所述图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据。
  7. 根据权利要求6所述的驱动方法,其中,所述以六个所述图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据的步骤包括:
    将所述六个图像像素中的第一图像像素和第二图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第一显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第二图像像素和第三图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第一显示像素的蓝色子显示像素数据和白色子显示像素数据;
    将所述六个图像像素中的第三图像像素和第四图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第二显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第四图像像素和第五图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第二显示像素的蓝色子显示像素数据和白色子显示像素数据;
    将所述六个图像像素中的第五图像像素和第六图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第三显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第六图像像素和下一循环单元的第一图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第三显示像素的蓝色子显示像素数据和白色子显示像素数据。
  8. 根据权利要求7所述的驱动方法,其中,所述六个图像像素沿所述待显示图像行的方向相邻设置,所述三个显示像素沿所述液晶面板的行方向相邻设置。
  9. 一种液晶显示面板,其中,所述液晶显示面板包括多个显示像素,每一显示像素包括红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素,其中相邻行的相邻显示像素中的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素分别呈同列设置。
  10. 根据权利要求9所述的液晶显示面板,其中,所述液晶显示面板进一步包括:
    图像缓存单元,用于接收图像数据,其中所述图像数据用于表示包括多个图像像素的待显示图像;
    图像处理器,用于根据所述图像数据计算与所述图像像素分别对应的红色子图像像素数据、绿色子图像像素数据、蓝色子图像像素数据以及白色子图像像素数据,并以第一预定数量的所述图像像素为循环单元,在每个循环单元通过像素共享方式生成分别与第二预定数量的显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据,其中所述第一预定数量大于所述第二预定数量;
    显示驱动器,用于利用所述红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据分别驱动对应的显示像素的红色子显示像素、绿色子显示像素、蓝色子显示像素以及白色子显示像素。
  11. 根据权利要求10所述的液晶显示面板,其中,所述图像处理器将所述图像像素的红色子图像像素、绿色子图像像素以及蓝色子图像像素的灰阶值作为所述红色子图像像素数据、所述绿色子图像像素数据以及所述蓝色子图像像素数据,并将最小的灰阶值作为所述白色子图像像素数据。
  12. 根据权利要求10所述的液晶显示面板,其中,所述图像处理器以六个所述图像像素为循环单元,在每个循环单元生成三个显示像素对应的红色子显示像素数据、绿色子显示像素数据、蓝色子显示像素数据以及白色子显示像素数据。
  13. 根据权利要求12所述的液晶显示面板,其中,所述图像处理器执行以下步骤:
    将所述六个图像像素中的第一图像像素和第二图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第一显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第二图像像素和第三图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第一显示像素的蓝色子显示像素数据和白色子显示像素数据;
    将所述六个图像像素中的第三图像像素和第四图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第二显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第四图像像素和第五图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第二显示像素的蓝色子显示像素数据和白色子显示像素数据;
    将所述六个图像像素中的第五图像像素和第六图像像素的红色子图像像素数据和绿色子图像像素数据共享成所述三个显示像素中的第三显示像素的红色子显示像素数据和绿色子显示像素数据;
    将所述六个图像像素中的第六图像像素和下一循环单元的第一图像像素的蓝色子图像像素数据和白色子图像像素数据共享成所述第三显示像素的蓝色子显示像素数据和白色子显示像素数据。
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