CN110187552B - Display panel and display device - Google Patents
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- CN110187552B CN110187552B CN201910578989.7A CN201910578989A CN110187552B CN 110187552 B CN110187552 B CN 110187552B CN 201910578989 A CN201910578989 A CN 201910578989A CN 110187552 B CN110187552 B CN 110187552B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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Abstract
The invention discloses a display panel and a display device, wherein the display panel comprises an array substrate and a color film substrate which are oppositely arranged; the display panel comprises a display area; the display area of the color film substrate comprises a color resistance layer, the color resistance layer comprises a plurality of pixel units which are arranged in an array mode, and each pixel unit comprises a red color resistance block, a green color resistance block and a blue color resistance block; the display area of the array substrate comprises driving circuits which are arranged in an array mode, and the driving circuits correspond to the color resistance blocks one to one; the display area comprises a first area and a second area surrounding the first area; the second area comprises N transition zones which are sequentially arranged from the edge of the display area to the first area; and the area of the blue color blocking block of the ith transition zone is smaller than that of the blue color blocking block of the (i +1) th transition zone. The invention provides a display panel and a display device, which are used for solving the problem of serious blue light overflow at the edge of a display area of the conventional display device.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
With the development of science and technology, display devices are widely applied to daily life and work, and most of display panels in the current display devices are liquid crystal display panels.
The backlight module of the liquid crystal display panel comprises a light conversion material layer, blue light emitted by a blue light LED chip can be converted into light with other colors such as red and green, and the light with other colors and the blue light generated by the blue light LED chip are mixed to generate white light to serve as backlight of the display module.
However, in the edge portion of the backlight module, because of the design of the narrow frame of the backlight and the like, the light emitting angle of the LED chip is limited by the backlight frame, and the excitation of the light conversion material is incomplete, so that blue light overflows from the edge of the backlight module, and the image display effect is affected.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, and aims to solve the problem that blue light at the edge of a display area of the conventional display device overflows seriously.
In a first aspect, an embodiment of the present invention provides a display panel, including: the array substrate and the color film substrate are oppositely arranged; and a liquid crystal layer between the array substrate and the color film substrate;
the display panel comprises a display area; the display area of the color film substrate comprises a color resistance layer, the color resistance layer comprises a plurality of pixel units which are arranged in an array mode, and each pixel unit comprises a red color resistance block, a green color resistance block and a blue color resistance block; the display area of the array substrate comprises driving circuits which are arranged in an array mode, and the driving circuits correspond to the color resistance blocks one to one;
the display area comprises a first area and a second area surrounding the first area;
the second area comprises N transition zones which are sequentially arranged from the edge of the display area to the first area; the area of the blue color blocking block of the ith transition zone is smaller than that of the blue color blocking block of the (i +1) th transition zone; n is a positive integer of 2 or more, and i is a positive integer of 1 or more and N-1 or less.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel provided in any embodiment of the present invention, and further including a backlight module disposed on a non-display side of the display panel;
the backlight module comprises a blue LED chip and a light conversion layer covering the blue LED chip; the light conversion layer includes a phosphor material and/or a quantum dot material.
The display area of the array substrate of the display panel is provided with driving circuits which are arranged in an array mode, and the driving circuits correspond to the color resistance blocks in a one-to-one mode to independently control the light emission of the color resistance blocks. The second area comprises a plurality of transition zones from the edge of the display area to the first area, and the area of the blue color blocking block in the transition zone far away from the first area is smaller than that of the blue color blocking block in the transition zone near the first area, so that the blue light emitting area at the edge of the display area is reduced, the problem of serious blue light overflow at the edge of the display area is avoided, and the display effect of the display panel is improved.
Drawings
FIG. 1 is a diagram of a blue light path at a frame of a backlight module in the prior art;
fig. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the invention;
fig. 3 is a schematic plan view of a color filter substrate according to an embodiment of the present invention;
FIG. 4 is a schematic partial structure diagram of a color resist layer according to an embodiment of the present invention;
FIG. 5 is a schematic partial structure diagram of another color resist layer provided in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an array substrate according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the manufacturing process of the backlight module, the fluorescent material or the quantum dot film material generally needs to be excited by the blue light LED to emit light with other colors, and the light with other colors is mixed with the light generated by the blue light LED chip to form white light, so that the backlight light source is formed. However, because of the narrow frame of the backlight module of the display panel, the blue light leaks seriously around the backlight module, which results in the blue light projecting from the frame of the backlight module, and the display panel will have a "blue edge" phenomenon in the display process, as shown in fig. 1, fig. 1 is a path diagram of the blue light at the frame of the backlight module in the prior art, and at the frame of the backlight module, the blue light L which is not irradiated to the fluorescent material or the quantum dot film material 22 by the light source 21 is reflected by the frame, easily crosses the light-shielding tape 23, and is emitted to the edge position of the display panel 1, so that the edge blue light of the display panel 1 overflows seriously. In addition, because the quantum dot material is unstable, the oxidation is easy to continue with the increase of time, especially for the material at the edge of the film material, the oxidation condition is more serious, and the blue light overflow is serious.
In order to solve the above problem, an embodiment of the present invention provides a display panel, including an array substrate and a color film substrate that are arranged oppositely; and a liquid crystal layer between the array substrate and the color film substrate;
the display panel comprises a display area; the display area of the color film substrate comprises a color resistance layer, the color resistance layer comprises a plurality of pixel units which are arranged in an array mode, and each pixel unit comprises a red color resistance block, a green color resistance block and a blue color resistance block; the display area of the array substrate comprises driving circuits which are arranged in an array mode, and the driving circuits correspond to the color resistance blocks one to one;
the display area comprises a first area and a second area surrounding the first area;
the second area comprises N transition zones which are sequentially arranged from the edge of the display area to the first area; the area of the blue color blocking block of the ith transition zone is smaller than that of the blue color blocking block of the (i +1) th transition zone; n is a positive integer of 2 or more, and i is a positive integer of 1 or more and N-1 or less.
In the embodiment of the invention, the display area of the display panel comprises a first area and a second area surrounding the first area, the display area of the color film substrate of the display panel comprises a color resistance layer, the color resistance layer comprises pixel units which are arranged in an array manner, each pixel unit comprises a red color resistance block, a green color resistance block and a blue color resistance block, the display area of the array substrate of the display panel is provided with driving circuits which are arranged in an array manner, and the driving circuits correspond to the color resistance blocks one by one to independently control the light emission of the color resistance blocks. The second area comprises a plurality of transition zones from the edge of the display area to the first area, and the area of the blue color blocking block in the transition zone far away from the first area is smaller than that of the blue color blocking block in the transition zone near the first area, so that the blue light emitting area at the edge of the display area is reduced, the problem of serious blue light overflow at the edge of the display area is avoided, and the display effect of the display panel is improved.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention, and fig. 3 is a schematic structural view of a color filter substrate according to an embodiment of the present invention, as shown in fig. 2, a display panel 1 includes an array substrate 12 and a color filter substrate 11 that are oppositely disposed, and a liquid crystal layer 13 is disposed between the array substrate 12 and the color filter substrate 11. The display panel 1 includes a display region 14, that is, the array substrate 12 and the color filter substrate 11 both include the display region 14. The display region 14 of the color filter substrate 11 includes a color resist layer 111, the color resist layer 111 includes a plurality of pixel units 111a arranged in an array, and each pixel unit 111a includes a red color resist block R, a green color resist block G, and a blue color resist block B. The color-resisting blocks of corresponding colors can transmit light of corresponding colors, and illustratively, the red color-resisting block R can only transmit red light, the green color-resisting block G can only transmit green light, and the blue color-resisting block B can only transmit blue light. The display area 14 on the array substrate 12 is internally provided with driving circuits 121 arranged in an array manner, the driving circuits 121 and the color resistance blocks are arranged in a one-to-one correspondence manner, and the driving circuits 121 are used for controlling the light transmission of the liquid crystal layer 13 in the area where the corresponding color resistance blocks are located, so that the color resistance blocks transmit light with corresponding colors, and the image display of the display panel is realized.
The display area 14 of the display panel 1 includes a first area 141 and a second area 142 surrounding the first area 141, as shown in fig. 3, the second area 142 includes N transition zones sequentially arranged from an edge of the display area 14 to the first area 141, each transition zone includes at least one pixel unit 111a arranged around the first area 141, only the color film substrate 11 including one pixel unit 111a in each transition zone is shown in fig. 3, each transition zone may also include 2 pixel units 111a, and more pixel units 111 a. In addition, the number of the pixel units 111a included in each side of the transition zone may be different, referring to fig. 4, fig. 4 is a schematic view of a partial structure of a color resistance layer provided in an embodiment of the present invention, and the width of each transition zone is different in the row direction and the column direction, for example, as shown in fig. 4, the width of each transition zone in the row direction is the width of one pixel unit 111a, and the width of each transition zone in the column direction is the width of two pixel units 111 a. The width of the transition zone in the row direction and the column direction is not limited in this embodiment.
The transition zone disposed adjacent to the edge of the display area 14 is the 1 st transition zone 142-1, and the transition zone disposed adjacent to the first area 141 is the last transition zone, i.e., the nth transition zone 142-N, where N is a positive integer greater than or equal to 2. The area of the blue color block B in the ith transition zone 142-i is smaller than that of the blue color block B in the (i +1) th transition zone 142- (i +1), in other words, the area of the blue color block B in the transition zone is gradually increased from the edge of the display area 14 to the first region 141, so that the area of the transition zone blue color block B at the outermost side in the display area 14 is the smallest, the emitted blue light is the smallest, the amount of the blue light at the edge of the display area 14 can be effectively reduced, and the problem of serious light leakage at the edge of the display area 14 is solved. In the second region 142, the brightness of the blue light emitted by the display panel gradually increases from the edge to the first region 141, so that the blue light brightness between the second region 142 and the first region 141 is smoothly transited, and the good display effect of the display panel is maintained.
In this embodiment, by providing the second region 142 and the first region 141, and decreasing the area of the blue color block B in the second region 142 and gradually increasing from the edge to the first region 141, the luminance of the blue light emitted from the second region 142 is effectively decreased. The area of the blue color block B in the first region 141 is equal to the area of the other color blocks, so that the normal screen display is performed, and it should be noted that the second region 142 is only a narrow annular region at the edge of the display panel 1 relative to the first region 141, and in order to schematically illustrate the second region 142 in fig. 3, the proportion of the second region 142 in the display region 14 is increased. In the structure of the actual display panel 1, optionally, the width of the second region 142 may be 1-3 mm, that is, the total width of the N transition zones is 1-3 mm, which is about the width of several tens of pixel units 111 a. In order not to affect the display of the picture of the display panel 1, the second region 142 is only disposed in the edge region where the blue light overflows, so as to reduce the blue light brightness of the edge region of the display panel and prevent the occurrence of the "blue edge" phenomenon.
Optionally, with continued reference to fig. 2 and 4, the color-resist layer 111 further includes a black color resist BM; the black color resists BM are disposed in the area between two adjacent color resist blocks. The black color block BM is a completely opaque region, the area of the color block of each of the other colors determines the brightness of the light of the corresponding color, and the area of the blue color block B in the second region 142 is smaller than that of the blue color block B in the first region. As shown in fig. 4, in the second region 142, the area difference region d between the blue color block B and the blue color block B in the first region is covered with the black color block BM, so that the transmission area of the blue light is reduced in the second region 142, and the emission amount of the blue light is reduced, thereby reducing the blue light brightness of the second region 142 as a whole.
Optionally, referring to fig. 5, fig. 5 is a schematic partial structure diagram of another color-resist layer provided in an embodiment of the present invention, where the pixel unit 111a in the second region 142 further includes a yellow color-resist block Y; in each pixel unit 111a in the second region 142, the yellow color block Y and the blue color block B are spliced to form a first color block 111B; each first color block 111b is provided with a one-to-one corresponding driving circuit.
The yellow color resistor sub-block Y can only transmit yellow light from the light source, and the yellow light and the blue light can be mixed to generate white light and reduce the luminance of the blue light. The yellow resistor block Y and the blue resistor block B located in the same first resistor block 111B are driven by a common driving circuit, that is, the first resistor block 111B is provided with driving circuits corresponding to each other, and when the driving circuits control the blue resistor block B to emit blue light, the yellow resistor block Y located in the same first resistor block 111B emits yellow light, which can neutralize the blue light, so that the blue light brightness at the edge of the display panel can be further reduced.
Alternatively, with continued reference to fig. 5, in each pixel cell 111a, the size of the red color block R is the same as the size of the green color block G; the first color block 111b has the same size as the red color block R or the green color block G. In the second region 142 of the display area 14, the first color resist 111b as a whole has the same area as the color resist of the other colors. In the first region 141, the blue color block B has the same size as the red color block R or the green color block G. The sum of the areas of the blue color resist block B and the yellow color resist block Y in the second region 142 is equal to the area of the blue sub-pixel B in the first region 141.
In the second region 142, the area of the blue sub-pixel B in each transition zone gradually increases from the edge of the display region 14 to the first region 141, and the area of the yellow color resistance sub-block Y gradually decreases, i.e., the neutralization effect of the yellow color resistance sub-block Y on the blue sub-pixel B is smaller and smaller. As shown in fig. 5, for example, the area of the yellow color resistance sub-block Y of the ith transition band 142-i is larger than the area of the yellow color resistance sub-block Y of the (i +1) th transition band 142- (i + 1). This embodiment realizes the gentle transition of blue light luminance between second region 142 and first region 141, keeps display panel's good display effect.
Optionally, referring to fig. 6, fig. 6 is a schematic structural diagram of an array substrate according to an embodiment of the present invention, the array substrate 12 further includes a plurality of gate lines 122 extending along a first direction x and a plurality of data lines 123 extending along a second direction y; the gate lines 122 and the data lines 123 cross to define a plurality of driving circuits 121; the data line 123 includes a plurality of first data lines 123a and a plurality of second data lines 123 b; the first data line 123a passes through the first and second regions 141 and 142 and outputs a constant data voltage; the second data line 123b passes through the second region 142; in the direction perpendicular to the second direction y, the data voltage output from the second data line 123B connected to the driving circuit 121 corresponding to the blue color block B in the second region 142 gradually increases from the edge of the display area 14 to the first region 141.
The gate lines 122 are used for supplying scanning signals to the driving circuit 121, and the data lines 123 are used for supplying data signals to the driving circuit 121. The brightness of light transmitted through the color block corresponding to the driving circuit 121 can be controlled by adjusting the data signal. The gate line 122 extends along a first direction x, and the data line 123 extends along a second direction y, where the first direction x and the second direction y are in an intersecting relationship, and optionally, the first direction x and the second direction y may be in a perpendicular relationship with each other.
The second region 142 is disposed around the first region 141, and there is a data line passing through both the first region 141 and the second region 142, dividing the data line 123 into two parts: a first data line 123a and a second data line 123B, the first data line 123a passes through the first region 141 and the second region 142, and the second data line 123B passes through only the second region 142, the first data line 123a outputs a constant data voltage, so that the blue color block B in the first region 141 is displayed with a blue luminance required for a picture. In the second region 142, the data voltage output by the second data line 123B connected to the driving circuit 121 corresponding to the blue color block B may be less than the constant data voltage. Therefore, the brightness of the blue color block B in the second area 142 is smaller than the normal display value of the picture, thereby further reducing the problem of blue light overflow at the edge of the display area 14.
Specifically, in the direction perpendicular to the second direction y or in the direction along the first direction x, the data voltage output by the second data line 123B connected to the driving circuit 121 corresponding to the blue color block B in the second region 142 gradually increases from the edge of the display area 14 to the first region 141, so that the blue light luminance in the second region 142 and the blue light luminance in the first region 141 make a slow transition, and the luminance difference between the edge of the first region 141 and the second region 142 is prevented from being large, so that the display panel displays more uniformly as a whole.
Optionally, in a direction perpendicular to the second direction y or in the direction along the first direction x, the data voltage output by the second data line 123B corresponding to the blue color block B of the i-th transition band 142-i is smaller than the data voltage output by the second data line 123B corresponding to the blue color block B of the i + 1-th transition band 142- (i + 1). Optionally, in a direction from the edge of the display area 14 to the first area 141, the data voltages output by the second data lines 123B corresponding to the blue color blocks B of each transition zone sequentially increase in a step-like manner.
As shown in fig. 6, the data voltage output from the second data line 123B connected to the blue block B in each transition zone is the same, and the data voltage output from the second data line 123B connected to the blue block B in each transition zone is smaller in the transition zone closer to the edge of the display area 14, specifically, the data voltage output from the second data line 123B corresponding to the blue block B in the ith transition zone 142-i is smaller than the data voltage output from the second data line 123B corresponding to the blue block B in the (i +1) th transition zone 142- (i +1), illustratively, the absolute value of the data voltage output from the second data line 123B connected to the blue block B in the 1 st transition zone 142-1 is 4.7V, the absolute value of the data voltage output from the second data line 123B connected to the blue block B in the 2 nd transition zone 142-2 is 4.9V, the absolute value of the data voltage output from the second data line 123B connected to the blue color block B in the 3 rd transition band 142-3 is 5.1V, and so on, the absolute value of the data voltage output from the second data line 123B connected to the blue color block B gradually increases until the absolute value of the data voltage increases to be equal to the data voltage output from the first data line 123a connected to the blue color block B in the first region 141. The absolute value of the data voltage output from the first data line 123a connected to the blue color block B of the first region 141 is 5.3V.
The embodiment of the invention also provides a display device. Fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 7, the display device according to the embodiment of the present invention includes a display panel 1 according to any embodiment of the present invention; further comprising:
the backlight module 2 is arranged on the non-display side of the display panel 1;
the backlight module 2 includes a blue LED chip 24, and a light conversion layer 25 covering the blue LED chip 24; the light conversion layer 25 includes a phosphor material and/or a quantum dot material.
The display device 1 may be a mobile phone, a computer, a television, an intelligent wearable device, and the like, which is not particularly limited in this embodiment.
The display device provided by the invention has the advantages that the display area of the display panel comprises a first area and a second area surrounding the first area, the display area of the color film substrate of the display panel comprises a color resistance layer, the color resistance layer comprises pixel units which are arranged in an array manner, each pixel unit comprises a red color resistance block, a green color resistance block and a blue color resistance block, the display area of the array substrate of the display panel is provided with driving circuits which are arranged in an array manner, and the driving circuits are in one-to-one correspondence with the color resistance blocks to independently control the light emission of the color resistance blocks. The second region comprises a plurality of transition zones from the edge of the display region to the first region, and the area of the blue color blocking block in the transition zone far away from the first region is smaller than that in the transition zone near the first region, so that the blue light emitting area at the edge of the display region is reduced, the problem of serious blue light overflow at the edge of the display region is avoided, and the display effect of the display panel is improved.
Fig. 8 is a schematic structural diagram of another display device according to an embodiment of the present invention, and optionally, referring to fig. 6 and 8, the array substrate 12 may further include a plurality of first data lines 123a and a plurality of second data lines 123b that are arranged in parallel; the first data line 123a passes through the first and second regions 141 and 142 and outputs a constant data voltage; the second data lines 123b pass through the second region 142, and the data voltages output by the second data lines 123b form a data voltage gradient sequence; the display device 3 may further include: a controller 4 and a data voltage setting module 5; the data voltage setting module 5 is configured to set a data voltage gradient sequence of the second data line 123b according to a white light image of the display panel 1; the controller 4 is electrically connected to the data voltage setting module 5 and the driving chip of the display panel 1, respectively, and is configured to write the data voltage gradient sequence of the second data line 123b into the driving chip.
A plurality of transition zones are sequentially arranged between the edge of the display area and the first area 141, and the data voltages output by the second data lines 123b corresponding to the blue color block of each transition zone are different, so that the data voltages output by the second data lines 123b of the N transition zones can sequentially form a data voltage gradient sequence. The data voltage setting module 5 can identify and analyze the white light frame of the display panel 1, so as to obtain the data voltage gradient sequence of the second data line 123 b. For example, an image sample of the display panel 1 on a white light picture can be captured by the image capture device, and the image sample is sent to the data voltage setting module 5, and the data voltage setting module 5 reversely deduces a data voltage gradient sequence to be output by the second data line 123b according to the blue light brightness displayed on the image sample on the white light picture, so as to achieve the effect of reducing the blue light brightness of the second area 142. According to the scheme of the embodiment, the data voltage gradient sequence required to be output by the second data line 123b can be acquired according to the image display effect, the scheme of the embodiment can acquire the accurate data voltage gradient sequence, the blue light in the second area 142 is weakened, and the problem of blue light overflow is effectively solved.
Optionally, with continued reference to fig. 6 and 8, the data voltage setting module 5 is further configured to select a preset voltage gradient sequence from the plurality of preset data voltage gradient sequences of the second data line 123b according to an input instruction of a user; the controller 4 is electrically connected to the data voltage setting module 5 and the driving chip of the display panel 1, respectively, and is configured to write the selected preset voltage gradient sequence into the driving chip.
In this embodiment, a plurality of preset data voltage gradient sequences may be set when the display device leaves the factory according to the display rule of the display device 3 and stored in the data voltage setting module 5, and a user may select one preset voltage gradient sequence from the preset data voltage gradient sequences as the data voltage gradient sequence of the second data line 123b according to the observation of human eyes, and write the selected preset voltage gradient sequence into the driving chip of the display panel 1 through the controller 4. The data voltage gradient sequence setting scheme of this embodiment can match the data voltage gradient sequence of the second data line 123b appropriately according to the user's requirement, and improve the situation that the periphery of the display panel is bluish. Moreover, as the service time of the display device 3 increases, the blue light overflow phenomenon may become more serious, and the user can modify the data voltage gradient sequence according to the severity of the blue light overflow, thereby effectively improving the blue light overflow phenomenon around the display panel 1.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. The display panel is characterized by comprising an array substrate and a color film substrate which are oppositely arranged; and a liquid crystal layer between the array substrate and the color film substrate;
the display panel comprises a display area; the display area of the color film substrate comprises a color resistance layer, the color resistance layer comprises a plurality of pixel units which are arranged in an array mode, and each pixel unit comprises a red color resistance block, a green color resistance block and a blue color resistance block; the display area of the array substrate comprises driving circuits which are arranged in an array mode, and the driving circuits correspond to the color resistance blocks one to one;
the display area comprises a first area and a second area surrounding the first area;
the second area comprises N transition zones which are sequentially arranged from the edge of the display area to the first area; the area of the blue color blocking block of the ith transition zone is smaller than that of the blue color blocking block of the (i +1) th transition zone; n is a positive integer greater than or equal to 2, i is a positive integer greater than or equal to 1 and less than or equal to N-1;
acquiring a plurality of data voltage gradient sequences of a second data line, and selecting a proper data voltage gradient sequence according to actual needs;
the pixel units in the second area further comprise yellow color resistance sub-blocks;
in each pixel unit in the second area, the yellow color resistance block and the blue color resistance block are spliced to form a first color resistance block; each first color block is provided with a driving circuit in one-to-one correspondence;
the area of the yellow color resistance sub-block of the ith transition band is larger than that of the yellow color resistance sub-block of the (i +1) th transition band.
2. The display panel of claim 1, wherein the color-resist layer further comprises a black color resist; the black color resistor is arranged in the area between two adjacent color resistor blocks.
3. The display panel according to claim 1, wherein the size of the red color block is the same as the size of the green color block in each pixel unit;
the size of the first color block is the same as that of the red color block or the green color block.
4. The display panel according to claim 1, wherein the array substrate further comprises a plurality of gate lines extending in a first direction and a plurality of data lines extending in a second direction; the gate lines and the data lines intersect to define a plurality of driving circuits; the data lines comprise a plurality of first data lines and a plurality of second data lines; the first data line passes through the first region and the second region and outputs a constant data voltage; the second data line passes through the second area;
in the direction perpendicular to the second direction, the data voltage output by the second data line connected to the driving circuit corresponding to the blue color block in the second area gradually increases from the edge of the display area to the first area.
5. The display panel according to claim 4,
and in the direction perpendicular to the second direction, the data voltage output by the second data line corresponding to the blue color blocking block of the ith transition zone is less than the data voltage output by the second data line corresponding to the blue color blocking block of the (i +1) th transition zone.
6. The display panel according to claim 1, wherein the width of the second region is 1 to 3 mm.
7. A display device comprising the display panel according to any one of claims 1 to 6, further comprising:
the backlight module is arranged on the non-display side of the display panel;
the backlight module comprises a blue LED chip and a light conversion layer covering the blue LED chip; the light conversion layer includes a phosphor material and/or a quantum dot material.
8. The display device according to claim 7, wherein the array substrate further comprises a plurality of first data lines and a plurality of second data lines arranged in parallel; the first data line passes through the first region and the second region and outputs a constant data voltage; the second data lines penetrate through the second area, and data voltages output by the second data lines form a data voltage gradient sequence;
the display device further includes: the device comprises a controller and a data voltage setting module;
the data voltage setting module is used for setting a data voltage gradient sequence of the second data line according to a white light picture of the display panel;
the controller is respectively electrically connected with the data voltage setting module and a driving chip of the display panel and is used for writing the data voltage gradient sequence of the second data line into the driving chip.
9. The display device according to claim 8, wherein the data voltage setting module is further configured to select a preset voltage ramp sequence from a plurality of preset data voltage ramp sequences of the second data line according to an input command of a user;
the controller is respectively electrically connected with the data voltage setting module and a driving chip of the display panel and is used for writing the selected preset voltage gradient sequence into the driving chip.
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| CN112394567B (en) * | 2020-12-11 | 2022-07-22 | 厦门天马微电子有限公司 | Liquid crystal display panel and display device |
| CN114035376B (en) * | 2021-11-24 | 2023-10-13 | 京东方科技集团股份有限公司 | Display module, manufacturing method thereof and display device |
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