CN117471794A - Display panel and display device - Google Patents
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- CN117471794A CN117471794A CN202311703428.8A CN202311703428A CN117471794A CN 117471794 A CN117471794 A CN 117471794A CN 202311703428 A CN202311703428 A CN 202311703428A CN 117471794 A CN117471794 A CN 117471794A
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- 238000002834 transmittance Methods 0.000 claims description 49
- 239000010409 thin film Substances 0.000 claims description 41
- 239000010408 film Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 6
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- 238000013461 design Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 101100214488 Solanum lycopersicum TFT2 gene Proteins 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- 101100214491 Solanum lycopersicum TFT3 gene Proteins 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- G02F1/136222—Colour filters incorporated in the active matrix substrate
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
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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
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
Abstract
The application discloses a display panel and a display device, which relate to the technical field of display, wherein the display panel comprises a color film substrate and an array substrate which are oppositely arranged, the array substrate comprises a substrate body, a plurality of data lines, a plurality of scanning lines and a plurality of pixel units, the substrate body is divided into a display area and a non-display area, the data lines and the scanning lines are arranged in a crossing manner and define a pixel unit, the pixel units are distributed in the display area of the substrate body in an array manner, the pixel unit comprises red pixels, green pixels and blue pixels, a part of pixel units close to the non-display area are edge pixel units, the edge pixel units comprise edge red pixels, the edge red pixels are positioned on one side of the edge pixel units close to the non-display area, and the penetration rate of the edge red pixels is lower than that of red pixels in other pixel units; through the design, the edge reddening is improved, and the display effect is ensured.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
With the continuous development of science and technology, various types of display panels are layered endlessly, which brings great convenience to the production and life of people, such as liquid crystal display panels (Liquid Crystal Display, LCDs). When the liquid crystal display panel displays a white picture, red (Red, R), green (Green, G) and Blue (Blue, B) pixels are required to be simultaneously turned on, and when each row of pixels in the display area are periodically arranged in the order of the Red, green and Blue pixels, during normal display, the leftmost Red pixel will cause the thickness variation of the box due to the thickness variation of the edge CF side, so that the left side of the display area will be biased to Red, and the corresponding rightmost pixel will be biased to Blue. If the arrangement is blue, green and red, the arrangement is right-most red, and the arrangement is left-most blue. However, due to the characteristics of the blue pixels, bluish color is not easily recognized by human eyes, while reddish color is easily recognized by human eyes, thereby affecting visual experience.
In the prior art, a group of red, green and blue pixels are respectively added on the left and right sides of a display area, 1/3 opening areas of sub-pixels on the left and right edges of the display area are covered by a black matrix, the black matrix on the periphery of the display area is in a grooved design, but the color mixing ratio of the edge pixels is different from that of a normal area, so that edge color lines are generated on a special picture, and the width of the display area is reduced.
Disclosure of Invention
The purpose of the application is to provide a display panel and a display device for improving edge redness and guaranteeing display effect.
The application discloses a display panel, which comprises a color film substrate and an array substrate which are oppositely arranged, wherein the array substrate comprises a substrate body, a plurality of data lines, a plurality of scanning lines and a plurality of pixel units, the substrate body is divided into a display area and a non-display area, the data lines and the scanning lines are arranged in a crossing manner, a pixel unit is defined, and the pixel units are distributed in the display area of the substrate body in an array mode; the pixel units comprise red pixels, green pixels and blue pixels, wherein a part of the pixel units close to the non-display area are edge pixel units, the edge pixel units comprise edge red pixels, the edge red pixels are positioned on one side of the edge pixel units close to the non-display area, and the transmittance of the edge red pixels is lower than that of red pixels in other pixel units.
Optionally, the edge red pixel includes a pixel electrode and a common electrode that are stacked, the common electrode includes a common electrode branch that is disposed in parallel, a slit is formed between two adjacent common electrode branches, and the slit of the edge red pixel is smaller than the slit of the red pixels in other pixel units.
Optionally, the width of the common electrode branch of the edge red pixel is equal to the width of the common electrode branches of the red pixels in other pixel units;
and the number of the common electrode branches of the edge red pixels is greater than the number of the common electrode branches of the red pixels in the other pixel units; or (b)
The number of the common electrode branches of the edge red pixels is equal to the number of the common electrode branches of the red pixels in other pixel units;
and the width of the common electrode branch of the edge red pixel is larger than that of the common electrode branches of the red pixels in other pixel units.
Optionally, the edge red pixel includes pixel electrode branches and common electrode branches that are alternately arranged, and slits are formed between the pixel electrode branches and the common electrode branches at intervals, and the slits of the edge red pixel are smaller than the slits of the red pixels in the other pixel units.
Optionally, the width of the pixel electrode branch of the edge red pixel is equal to the width of the pixel electrode branch of the red pixel in other pixel units; and the number of pixel electrode branches of the edge red pixel is greater than the number of pixel electrode branches of red pixels in other of the pixel cells.
Optionally, the number of pixel electrode branches of the edge red pixel is equal to the number of pixel electrode branches of the red pixels in other pixel units; and the width of the pixel electrode branch of the edge red pixel is larger than that of the pixel electrode branches of the red pixels in other pixel units.
Optionally, the transmittance of the edge red pixel is lower than 13-16% of the transmittance of the red pixels in other pixel units.
Optionally, the red pixel includes a control switch and a pixel electrode, and the data line and the scan line are connected to the pixel electrode through the control switch; the channel width-to-length ratio of the control switch of the edge red pixel is smaller than that of the control switches of the red pixels in other pixel units.
Optionally, the array substrate further includes a sub-edge pixel unit located at a side of the edge pixel unit away from the non-display area, where a transmittance of the red pixel in the sub-edge pixel unit is greater than a transmittance of the edge red pixel; the transmittance of the red pixels in the sub-edge pixel units is smaller than that of the red pixels in the other pixel units.
Optionally, the edge red pixel is divided into a near side sub-pixel and a far side sub-pixel, the near side sub-pixel is close to the non-display area, the far side sub-pixel is located at one side of the near side sub-pixel far away from the non-display area, the transmittance of the near side sub-pixel is lower than 15% -17% of the transmittance of the red pixels in other pixel units, and the transmittance of the far side sub-pixel is lower than 11% -13% of the transmittance of the red pixels in other pixel units.
Optionally, the pixel unit includes a control signal line, a pixel electrode, and a pixel driving circuit, where the pixel driving circuit includes a first thin film transistor, a second thin film transistor, and a third thin film transistor, the control signal line is connected to a gate of the first thin film transistor, a source of the first thin film transistor is connected to the scan line, a gate of the second thin film transistor is connected to a drain of the first thin film transistor, a source of the second thin film transistor is connected to the pixel electrode, a drain of the second thin film transistor is connected to the data line, a gate of the third thin film transistor is connected to a source of the first thin film transistor through the scan line, a source of the third thin film transistor is connected to the pixel electrode, and drains of the third thin film transistor are respectively connected to the data line; the display panel controls the pixel driving circuit by controlling the control signal output by the control signal line so as to realize the brightness control of the pixel unit.
The application also discloses a display device, including backlight unit and as above display panel, its characterized in that, backlight unit with display panel sets up relatively, backlight unit is for display panel provides the backlight.
Compared with the scheme that in the prior art, the black matrix is used for shielding the opening area 1/3 of the edge sub-pixel, so that the color mixing ratio of the edge pixels is different from that of the normal area, the pixel units are distributed in the display area of the substrate body in an array mode; the pixel units comprise red pixels, green pixels and blue pixels, wherein a part of the pixel units close to the non-display area are edge pixel units, the edge pixel units comprise edge red pixels, the edge red pixels are positioned on one side, close to the non-display area, of the edge pixel units, the transmittance of the edge red pixels is lower than that of the red pixels in other pixel units, the fact that the chromaticity of the edge red pixels of the display panel is basically the same as that of the red pixels of the normal display area is achieved, the brightness difference between the edge of the display area and the middle of the display area is reduced, and the problem of edge redness is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive faculty for a person skilled in the art. In the drawings:
fig. 1 is a schematic structural view of a display panel of the present application;
FIG. 2 is a block diagram schematically showing a display device of the present application;
fig. 3 is a schematic arrangement structure of a pixel unit in a display panel in a top view according to a first embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a pixel unit according to a first embodiment of the present application;
FIG. 5 is a graph of experimental data provided in a first embodiment of the present application;
FIG. 6 is a line data plot formed in accordance with FIG. 5;
fig. 7 is a schematic structural diagram of a pixel unit according to a second embodiment of the present application;
fig. 8 is a schematic view of a pixel structure according to a fifth embodiment of the present application;
fig. 9 is a schematic view of a pixel driving structure according to a sixth embodiment of the present application.
10, a display device; 100. a display panel; 110. an array substrate; 111. a substrate body; 112. a display area; 113. a non-display area; 114. a data line; 115. a scanning line; 120. an edge pixel unit; 121. edge red pixels; 122. a pixel electrode branch; 123. a common electrode branch; 124. a proximal sub-pixel; 125. a distal subpixel; 126. a control signal line; 127. a pixel electrode; 128. a pixel driving circuit; 129. a first thin film transistor; 130. a second thin film transistor; 131. a third thin film transistor; 140. a common electrode; 150. a slit; 200. and a backlight module.
Detailed Description
It should be understood that the terminology, specific structural and functional details disclosed herein are merely representative for purposes of describing particular embodiments, but that the application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "first", "second" may include one or more such features either explicitly or implicitly; the meaning of "plurality" is two or more. In addition, terms of the azimuth or positional relationship indicated by "upper", "lower", "left", "right", "vertical", "horizontal", etc., are described based on the azimuth or relative positional relationship shown in the drawings, and are merely for convenience of description of the present application, and do not indicate that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Fig. 1 is a schematic structural diagram of a display panel of the present application, as shown in fig. 1, the present application discloses a display panel 100, which includes a color film substrate and an array substrate 110 that are disposed opposite to each other, the array substrate 110 includes a substrate body 111, a plurality of data lines 114, a plurality of scan lines 115, and a plurality of pixel units, the substrate body 111 is divided into a display area 112 and a non-display area 113, the data lines 114 are disposed intersecting the scan lines 115 and define a pixel unit, and the plurality of pixel units are distributed in the display area 112 of the substrate body 111 in an array form; the pixel units comprise red pixels, green pixels and blue pixels, wherein a part of the pixel units close to the non-display area 113 are edge pixel units 120, the edge pixel units 120 comprise edge red pixels 121, the edge red pixels 121 are positioned on one side of the edge pixel units 120 close to the non-display area 113, and the transmittance of the edge red pixels 121 is lower than that of red pixels in other pixel units.
Compared with the prior art that the black matrix is utilized to shield the opening area 1/3 of the edge sub-pixel around the display area 112, which causes the color mixing ratio of the edge pixels to be different from that of the normal area, the pixel units are distributed in the display area 112 of the substrate body 111 in an array form; the pixel units include red pixels, green pixels and blue pixels, wherein a part of the pixel units close to the non-display area 113 are edge pixel units 120, the edge pixel units 120 include edge red pixels 121, the edge red pixels 121 are located at one side of the edge pixel units 120 close to the non-display area 113, the transmittance of the edge red pixels 121 is lower than that of red pixels in other pixel units, the chromaticity of the edge red pixels of the display panel 100 is basically the same as that of the red pixels of the normal display area 112, the brightness difference between the edge of the display area 112 and the middle of the display area 112 is reduced, and the problem of edge redness is improved, so that the display effect is ensured.
Fig. 2 is a schematic block diagram of a display device of the present application, and as shown in fig. 2, the present application further discloses a display device 10, including a backlight module 200 and the display panel 100 as described above, where the backlight module 200 is disposed opposite to the display panel 100, and the backlight module 200 provides a backlight for the display panel 100. By employing the display panel 100 in the display device 10, the difference in luminance between the display region edge and the display region 112 can be reduced, and the problem of edge redness can be improved.
The present application is described in detail below with reference to the attached drawings and alternative embodiments.
First embodiment:
fig. 3 is a schematic diagram of an arrangement structure of pixel units in a top view of fig. 1, and fig. 4 is a schematic diagram of a structure of pixel units provided in a first embodiment of the present application, as shown in fig. 3, the pixel units are arranged in an array and are arranged in a sequence of R, G, B, and as can be seen from fig. 4, the display device 10 is an FFS screen (Fringe Field Switching, fringe field switching technology, FFS for short), and a red problem occurs in left and right edge pixels on an L127 gray-scale frame. The edge red pixel 121 includes a pixel electrode 127 and a common electrode 140 that are stacked, the common electrode 140 is located above the pixel electrode 127, the common electrode 140 includes a plurality of common electrode branches 123 that are spaced apart, and a slit 150 is formed between every two adjacent common electrode branches 123, and the slit 150 of the edge red pixel 121 is smaller than the slits 150 of the red pixels in other pixel units. By changing the width of the slit 150 of the common electrode branch 123, the electric field between the pixel electrode 127 and the common electrode 140 can be changed, thereby changing the transmittance of the edge red pixel 121.
Specifically, the width of the common electrode branch 123 of the edge red pixel 121 is equal to the width of the common electrode branch 123 of the red pixels in the other pixel units; and the number of the common electrode branches 123 of the edge red pixel 121 is greater than the number of the common electrode branches 123 of the red pixels in other pixel units, so that the transmittance of the edge red pixel 121 is lower than that of the red pixels in other pixel units by changing the number of the common electrode branches 123 under the condition that the width of the common electrode branches 123 is unchanged.
The transmittance of the red pixels in the edge pixel unit 120 is lower than the transmittance of the red pixels in the other pixel units by 13-16%, preferably 14%.
According to the actual measurement data of the cut surface diagram of the actual product with red edge, the color resistance film thickness of the edge pixels and the film thickness of the edge OC (flat layer) are lower than those of the normal region in the process of the display panel 100, the film thickness variation can lead to the edge position box thickness of the display region 112 to be lower than that of the middle display region 112 by 0.3 mu m, the pixel penetration rate is simulated by software, the same pixel design can reduce the Cell Gap by 0.3 mu m, and the pixel penetration rate can be increased by about 14%.
Specifically, fig. 5 is an experimental data graph provided in the first embodiment of the present application, and fig. 6 is a linear data graph formed according to fig. 5, and in combination with fig. 5-6, the inventor has made experiments that, under the condition that the charging voltage is unchanged, the penetration rate of the pixel is changed by adjusting the size of the Cell Gap, and the change between the penetration rate of the pixel and the Cell Gap is linearly increased or decreased. Under the condition that the charging voltage is kept unchanged, when the Cell Gap is 2.8 mu m, the penetration rate of the pixel is 5.57%; when the Cell Gap is 3.1 μm, the transmittance TR of the pixel is 6.41%, the difference between the two Cell gaps is 0.3 μm, the corresponding transmittance difference is (6.41-5.57)/6.41, and the calculated transmittance difference is 13.1%. Therefore, by adjusting the slit width between the pixel electrode branch 122 and the common electrode branch 123, the transmittance of the edge red pixel 121 is reduced by about 14%, and the problem of reddening of the edge pixel can be improved.
Of course, in the case where the number of the common electrode branches 123 of the edge red pixel 121 is unchanged from the number of the common electrode branches 123 of the red pixels in the other pixel units, it is also possible to make the slit 150 smaller by increasing the width of the common electrode branches 123 of the edge red pixel 121; in addition, in the case that the number of the common electrode branches 123 of the edge red pixel 121 is unchanged from the number of the common electrode branches 123 of the red pixels in other pixel units, the area of the edge red pixel 121 may be made slightly smaller than that of the other red pixels, which may reduce the transmittance of the edge red pixel 121, and the design is specifically designed according to the actual requirement and is not limited herein.
Second embodiment:
fig. 7 is a schematic structural diagram of a pixel unit provided In a second embodiment of the present application, as shown In fig. 7, and as a second embodiment of the present application, the difference between the present embodiment and the first embodiment is that the display device 10 is an IPS screen (In-Plane Switching, abbreviated as IPS), the edge red pixel 121 includes pixel electrode branches 122 and a common electrode branch 123 that are alternately arranged, a slit 150 is formed between the pixel electrode branches 122 and the common electrode branch 123 at intervals, and the slit 150 of the edge red pixel 121 is smaller than the slit 150 of the red pixels In other pixel units. By changing the width of the slit 150 of the common electrode branch 123 and the pixel electrode branch 122, the electric field between the pixel electrode 127 and the common electrode 140 can be changed, thereby changing the transmittance of the edge red pixel 121.
Specifically, the widths of the pixel electrode branches 122 and the common electrode branches 123 of the edge red pixel 121 are equal to the widths of the pixel electrode branches 122 and the common electrode branches 123 of the red pixels in the other pixel units, and the number of the pixel electrode branches 122 and the common electrode branches 123 of the edge red pixel 121 is greater than the number of the pixel electrode branches 122 and the common electrode branches 123 of the red pixels in the other pixel units, that is, the width of the slit 140 between the pixel electrode branches 122 and the common electrode branches 123 can be changed by increasing the number of the pixel electrode branches 122 and the common electrode branches 123, so that the transmittance of the edge red pixel 121 is lower than that of the red pixels in the other pixel units.
Of course, in the case where the number of the pixel electrode branches 122 and the common electrode branches 123 of the edge red pixel 121 is unchanged from the number of the pixel electrode branches 122 and the common electrode branches 123 of the red pixels in the other pixel units, it is also possible to increase the width of the pixel electrode branches 122 and the width of the common electrode branches 123 of the edge red pixel 121; in addition, in the case that the number of the pixel electrode branches 122 of the edge red pixel 121 is unchanged from the number of the pixel electrode branches 122 of the red pixels in the other pixel units, the area of the edge red pixel 121 may be made slightly smaller than that of the other red pixels, and the above design can reduce the transmittance of the edge red pixel 121.
Third embodiment:
as a third embodiment of the present application, unlike the first embodiment, the array substrate 110 further includes a sub-edge pixel unit 120 located on a side of the edge pixel unit 120 away from the non-display area 113, where a transmittance of the red pixel in the sub-edge pixel unit 120 is greater than a transmittance of the edge red pixel 121; the transmittance of the red pixels in the sub-edge pixel unit 120 is smaller than that of the red pixels in the other pixel units.
Since a plurality of pixel units need to be transited from the non-display area 113 to the middle of the display area 112, and the problem of redness at the edge of the display panel 100 exists, the sub-edge pixel unit 120 has a problem of redness due to the fact that the position of the sub-edge pixel unit is inferior to that of the edge pixel unit 120, but the problem of redness is relatively small compared with that of the edge pixel unit 120, and in order to better transit the display effect from the non-display area 113 to the display area 112, the transmittance of the sub-edge pixel unit 120 can be properly adjusted and reduced, and the transmittance of the red pixel of the sub-edge pixel unit 120 is reduced by 6% -8% relative to that of the red pixels in other pixel units, namely, after adjustment, in the edge pixels close to the display area 112, the transmittance of the pixel unit gradually decreases along the direction from the non-display area 113 to the display area 112, and is in a relatively uniform transition, so that the display effect is more uniform when the problem of edge redness is improved.
Fourth embodiment:
as a fourth embodiment of the present application, this embodiment is different from the first and second embodiments in that the red pixel includes a control switch and a pixel electrode 127, and the data line 114 and the scan line 115 are connected to the pixel electrode 127 through the control switch; the channel width-to-length ratio of the control switch of the edge red pixel 121 is smaller than that of the control switches of the red pixels in other pixel units. By changing the width to length ratio of the channel of the pixel, the charge rate of the pixel electrode 127 can also be changed to change the transmittance thereof, so as to improve the problem of redness at the edge of the display panel 100.
The size of the channel can be adjusted by monitoring firstly and then according to the monitoring result, wherein an inductor can be arranged to monitor the optical mixing distance of the edge of the display device 10, and when the optical mixing distance reaches a threshold value, the size of the channel is controlled and adjusted by a controller so as to change the size of the channel of a control switch and reduce the transmittance.
Fifth embodiment:
fig. 8 is a schematic view of a pixel structure provided in a fifth embodiment of the present application, as shown in fig. 8, in which, as a fifth embodiment of the present application, the edge red pixel 121 is divided into four domains in a "field" shape, two domains on the left side are set as a proximal sub-pixel 124, two domains on the right side are set as a distal sub-pixel 125, the proximal sub-pixel 124 is near the non-display area 113, the distal sub-pixel 125 is located on a side of the proximal sub-pixel 124 away from the non-display area 113, the transmittance of the proximal sub-pixel 124 is lower than 15% -17% of the transmittance of red pixels in other pixel units, and the transmittance of the distal sub-pixel 125 is lower than 11% -13% of the transmittance of red pixels in other pixel units. Namely, the edge red pixel 121 is divided into two parts, and the transmittance of the edge red pixel 121 transitions from low to high along the direction from the non-display area 113 to the display area 112, so that the light transmittance of the edge is relatively uniform, and the problem of edge redness can be solved.
Sixth embodiment:
fig. 9 is a schematic view of a pixel driving structure provided in a sixth embodiment of the present application, as shown in fig. 8, in which, as a sixth embodiment of the present application, the edge pixel unit 120 includes a control signal line 126, a pixel electrode 127 and a pixel driving circuit 128, the pixel driving circuit 128 includes a first thin film transistor 129, a second thin film transistor 130 and a third thin film transistor 131, the control signal line 126 is connected to a gate electrode of the first thin film transistor 129, a source electrode of the first thin film transistor 129 is connected to the scan line 115, a gate electrode of the second thin film transistor 130 is connected to a drain electrode of the first thin film transistor 129, a source electrode of the second thin film transistor 130 is connected to the pixel electrode 127, a drain electrode of the second thin film transistor 130 is connected to the data line 114, a gate electrode of the third thin film transistor 131 is connected to the gate electrode of the first thin film transistor 129 through the scan, and a drain electrode of the third thin film transistor 131 is connected to the data line 114, respectively;
the display panel 100 controls the pixel driving circuit 128 by controlling the control signal outputted from the control signal line 126, so as to control the brightness of the edge pixel unit 120.
The edge pixels are increased to two groups from a conventional group of TFTs, the TFT2 and the TFT3 are added to be equal to the size of the pixel TFT in a normal area, a control signal line 126 is added, and the pixel TFT2 is controlled to be on or off by changing the voltage of the control signal, so that the charging efficiency of the edge pixels is changed, the function of real-time debugging of the brightness of the edge pixels is realized, and the problem of redness or bluiness caused by the bright edge pixels of the panel is solved.
It should be noted that, the inventive concept of the present application may form a very large number of embodiments, but the application documents have limited space and cannot be listed one by one, so that on the premise of no conflict, the above-described embodiments or technical features may be arbitrarily combined to form new embodiments, and after the embodiments or technical features are combined, the original technical effects will be enhanced.
The foregoing is a further detailed description of the present application in connection with specific alternative embodiments, and it is not intended that the practice of the present application be limited to such descriptions. It should be understood that those skilled in the art to which the present application pertains may make several simple deductions or substitutions without departing from the spirit of the present application, and all such deductions or substitutions should be considered to be within the scope of the present application.
Claims (10)
1. The display panel comprises a color film substrate and an array substrate which are oppositely arranged, wherein the array substrate comprises a substrate body, a plurality of data lines, a plurality of scanning lines and a plurality of pixel units, the substrate body is divided into a display area and a non-display area, the data lines and the scanning lines are arranged in a crossing manner, a pixel unit is defined, the pixel units are distributed in the display area of the substrate body in an array mode,
the pixel units comprise red pixels, green pixels and blue pixels, wherein a part of the pixel units close to the non-display area are edge pixel units, the edge pixel units comprise edge red pixels, the edge red pixels are positioned on one side of the edge pixel units close to the non-display area, and the transmittance of the edge red pixels is lower than that of red pixels in other pixel units.
2. The display panel of claim 1, wherein the edge red pixel includes a pixel electrode and a common electrode, the common electrode is located above the pixel electrode, the common electrode includes a plurality of common electrode branches arranged at intervals, a slit is formed between each two adjacent common electrode branches, and the slit of the edge red pixel is smaller than the slits of the red pixels in the other pixel units.
3. The display panel according to claim 2, wherein the width of the common electrode branch of the edge red pixel is equal to the width of the common electrode branches of the red pixels in the other pixel units;
and the number of the common electrode branches of the edge red pixels is greater than the number of the common electrode branches of the red pixels in the other pixel units; or (b)
The number of the common electrode branches of the edge red pixels is equal to the number of the common electrode branches of the red pixels in other pixel units;
and the width of the common electrode branch of the edge red pixel is larger than that of the common electrode branches of the red pixels in other pixel units.
4. The display panel according to claim 1, wherein the edge red pixel includes pixel electrode branches and common electrode branches alternately arranged, and slits are formed between the pixel electrode branches and the common electrode branches at intervals, and the slits of the edge red pixel are smaller than those of the red pixels in the other pixel units.
5. A display panel according to claim 2 or 3, wherein the transmittance of the edge red pixels is lower than 13% -16% of the transmittance of the red pixels in the other pixel units.
6. The display panel according to claim 1, wherein the red pixel includes a control switch and a pixel electrode, and the data line and the scan line are connected to the pixel electrode through the control switch;
the channel width-to-length ratio of the control switch of the edge red pixel is smaller than that of the control switches of the red pixels in other pixel units.
7. The display panel of claim 1, wherein the array substrate further comprises a sub-edge pixel unit located at a side of the edge pixel unit away from the non-display area, wherein a transmittance of the red pixel in the sub-edge pixel unit is greater than a transmittance of the edge red pixel; the transmittance of the red pixels in the sub-edge pixel units is smaller than that of the red pixels in the other pixel units.
8. The display panel of claim 1, wherein the edge red pixels are divided into a near side sub-pixel and a far side sub-pixel, the near side sub-pixel is near the non-display area, the far side sub-pixel is located at a side of the near side sub-pixel far from the non-display area, a transmittance of the near side sub-pixel is lower than 15% -17% of a transmittance of red pixels in other pixel units, and a transmittance of the far side sub-pixel is lower than 11% -13% of a transmittance of red pixels in other pixel units.
9. The display panel according to claim 1, wherein the edge pixel unit includes a control signal line, a pixel electrode, and a pixel driving circuit, the pixel driving circuit includes a first thin film transistor, a second thin film transistor, and a third thin film transistor, the control signal line is connected to a gate electrode of the first thin film transistor, a source electrode of the first thin film transistor is connected to the scan line, a gate electrode of the second thin film transistor is connected to a drain electrode of the first thin film transistor, a source electrode of the second thin film transistor is connected to the pixel electrode, a drain electrode of the second thin film transistor is connected to the data line, a gate electrode of the third thin film transistor is connected to a source electrode of the first thin film transistor through the scan line, a source electrode of the third thin film transistor is connected to the pixel electrode, and drain electrodes of the third thin film transistor are respectively connected to the data line;
the display panel controls the pixel driving circuit by controlling the control signal output by the control signal line so as to realize the brightness control of the edge pixel unit.
10. A display device comprising a backlight module and a display panel according to any one of claims 1-9, wherein the backlight module is arranged opposite to the display panel, and the backlight module provides a backlight for the display panel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311703428.8A CN117471794A (en) | 2023-12-12 | 2023-12-12 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311703428.8A CN117471794A (en) | 2023-12-12 | 2023-12-12 | Display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN117471794A true CN117471794A (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311703428.8A Pending CN117471794A (en) | 2023-12-12 | 2023-12-12 | Display panel and display device |
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| Country | Link |
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| CN (1) | CN117471794A (en) |
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- 2023-12-12 CN CN202311703428.8A patent/CN117471794A/en active Pending
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