Display panel and display device

Abstract

The application discloses a display panel and a display device, and relates to the technical field of display, and the display panel comprises a color film substrate and an array substrate arranged oppositely, the array substrate comprises a substrate body, a plurality of data lines, a plurality of scan 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 scan lines are arranged crossly and define a pixel unit, the plurality of pixel units are distributed in the display area of the substrate body in an array form, the pixel unit comprises a red pixel, a green pixel and a blue pixel, wherein, a part of the pixel units close to the non-display area are edge pixel units, the edge pixel unit comprises an edge red pixel, the edge red pixel is located at one side of the edge pixel unit close to the non-display area, and the transmittance of the edge red pixel is lower than that of the red pixel in other pixel units; through the above design, the application improves edge redness and guarantees display effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] With the continuous development of science and technology, various types of display panels emerge in an endless stream, which brings great convenience to people's production and life, for example, liquid crystal display panel (LCD). When displaying a white picture, the liquid crystal display panel needs to light up red (R) pixels, green (G) pixels and blue (B) pixels at the same time. When each row of pixels in the display area is periodically arranged in the order of red pixels, green pixels and blue pixels, the leftmost red pixel will cause the variation of cell thickness due to the edge CF side film thickness, thereby making the left side of the display area red, and the rightmost side will be blue. If arranged in the order of blue, green and red, the rightmost side will be red and the leftmost side will be blue. However, due to the characteristics of blue pixels, the blue color is not easily recognized by the human eye, while the red color is easily recognized by the human eye, thereby affecting the visual experience.

[0003] In the prior art, one group of red, green and blue pixels is added on the left and right of the display area, and 1 / 3 of the opening area of the edge sub-pixel in the display area is covered by a black matrix. The black matrix around the display area is designed with a groove, but the color mixing proportion of the edge pixel will be different from that of the normal area, which will cause the phenomenon of edge color line in special pictures, and the width of the display area will also be reduced. SUMMARY

[0004] The purpose of the present application is to provide a display panel and a display device which can improve the red edge and ensure the display effect.

[0005] The present application discloses a display panel, comprising a color film substrate and an array substrate arranged oppositely, the array substrate comprising a substrate body, a plurality of data lines, a plurality of scan lines and a plurality of pixel units, the substrate body being divided into a display area and a non-display area, the data lines and the scan lines being arranged crosswise and defining a pixel unit, a plurality of the pixel units being distributed in the display area of the substrate body in an array form; the pixel unit comprising a red pixel, a green pixel and a blue pixel, wherein a part of the pixel units close to the non-display area are edge pixel units, the edge pixel unit comprising an edge red pixel, the edge red pixel being located on the side of the edge pixel unit close to the non-display area, the transmittance of the edge red pixel being lower than that of the red pixel in other pixel units.

[0006] Optionally, the edge red pixel comprises a pixel electrode and a common electrode arranged in a stack, the common electrode comprises common electrode branches arranged side by side, a slit is formed between two adjacent common electrode branches, the slit of the edge red pixel is smaller than the slit of the red pixel in the other pixel units.

[0007] Optionally, the width of the common electrode branch of the edge red pixel is equal to the width of the common electrode branch of the red pixel in the other pixel units.

[0008] And the number of the common electrode branch of the edge red pixel is greater than the number of the common electrode branch of the red pixel in the other pixel units; or

[0009] The number of the common electrode branch of the edge red pixel is equal to the number of the common electrode branch of the red pixel in the other pixel units.

[0010] And the width of the common electrode branch of the edge red pixel is greater than the width of the common electrode branch of the red pixel in the other pixel units.

[0011] Optionally, the edge red pixel comprises pixel electrode branches and common electrode branches arranged alternately, the pixel electrode branches and the common electrode branches are arranged with a gap to form a slit, the slit of the edge red pixel is smaller than the slit of the red pixel in the other pixel units.

[0012] 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 the other pixel units; and the number of the pixel electrode branch of the edge red pixel is greater than the number of the pixel electrode branch of the red pixel in the other pixel units.

[0013] Optionally, the number of the pixel electrode branch of the edge red pixel is equal to the number of the pixel electrode branch of the red pixel in the other pixel units; and the width of the pixel electrode branch of the edge red pixel is greater than the width of the pixel electrode branch of the red pixel in the other pixel units.

[0014] Optionally, the transmittance of the edge red pixel is lower than 13-16% of the transmittance of the red pixel in the other pixel units.

[0015] Optionally, the red pixel comprises a control switch and a pixel electrode, the data line and the scan line are connected to the pixel electrode through the control switch; wherein the channel aspect ratio of the control switch of the edge red pixel is smaller than the channel aspect ratio of the control switch of the red pixel in the other pixel units.

[0016] Optionally, the array substrate further comprises a secondary edge pixel unit located on a side of the edge pixel unit away from the non-display area, the transmittance of the red pixel in the secondary edge pixel unit is greater than the transmittance of the edge red pixel, and the transmittance of the red pixel in the secondary edge pixel unit is less than the transmittance of the red pixel in the other pixel units.

[0017] Optionally, the edge red pixel is divided into a proximal sub-pixel and a distal sub-pixel, the proximal sub-pixel is close to the non-display area, and the distal sub-pixel is located on a side of the proximal sub-pixel away from the non-display area, the transmittance of the proximal sub-pixel is lower than 15%-17% of the transmittance of the red pixel in the other pixel units, and the transmittance of the distal sub-pixel is lower than 11%-13% of the transmittance of the red pixel in the other pixel units.

[0018] Optionally, the pixel unit comprises a control signal line, a pixel electrode and a pixel driving circuit, the pixel driving circuit comprises a first thin film transistor, a second thin film transistor and a third thin film transistor, the control signal line is connected to the gate of the first thin film transistor, the source of the first thin film transistor is connected to the scan line, the gate of the second thin film transistor is connected to the drain of the first thin film transistor, the source of the second thin film transistor is connected to the pixel electrode, the drain of the second thin film transistor is connected to the data line, the gate of the third thin film transistor is connected to the source of the first thin film transistor through the scan line, the source of the third thin film transistor is connected to the pixel electrode, and the drain of the third thin film transistor is 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.

[0019] The application further discloses a display device, comprising a backlight module and the display panel as described above, characterized in that the backlight module is arranged opposite to the display panel, and the backlight module provides a backlight source for the display panel.

[0020] Compared with the prior art, the pixel units are arranged in an array on the display area of the substrate body, the pixel units include red pixels, green pixels and blue pixels, a part of the pixel units close to the non-display area are edge pixel units, the edge pixel units include edge red pixels, the edge red pixels are located on the 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 the red pixels in other pixel units, so that the chroma of the edge red pixels of the display panel is substantially the same as that of the red pixels in the normal display area, the brightness difference between the edge of the display area and the middle of the display area is reduced, and the problem of red edge is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and constitute a part of the specification, illustrate the embodiments of the application and together with the text description serve to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0022] Figure 1 is a structural schematic diagram of a display panel of the application;

[0023] Figure 2 is a block structure schematic diagram of a display device of the application;

[0024] Figure 3 is a schematic diagram of the arrangement structure of the pixel units in the display panel provided by the first embodiment of the application in a top view state;

[0025] Figure 4 is a structural schematic diagram of the pixel units provided by the first embodiment of the application;

[0026] Figure 5 is an experimental data graph provided by the first embodiment of the application;

[0027] Figure 6 is a linear data graph formed according to Figure 5 ;

[0028] Figure 7 is a structural schematic diagram of the pixel units provided by the second embodiment of the application;

[0029] Figure 8 is a structural schematic diagram of the pixel units provided by the fifth embodiment of the application;

[0030] Figure 9is a pixel driving structure schematic diagram provided by the sixth embodiment of the present application.

[0031] 10, display device; 100, display panel; 110, array substrate; 111, substrate body; 112, display area; 113, non-display area; 114, data line; 115, scan line; 120, edge pixel unit; 121, edge red pixel; 122, pixel electrode branch; 123, common electrode branch; 124, proximal sub-pixel; 125, distal sub-pixel; 126, control signal line; 127, pixel electrode; 128, pixel driving circuit; 129, first thin film transistor; 130, second thin film transistor; 131, third thin film transistor; 140, common electrode; 150, slit; 200, backlight module. DETAILED DESCRIPTION

[0032] It should be understood that the terms, specific structures and functional details used herein are only for the purpose of describing specific embodiments and are representative, but the present application can be embodied in many alternative forms, and should not be interpreted as being limited to the embodiments described herein.

[0033] In the description of the present application, the terms "first", "second" are only for the purpose of description, and should not be understood as indicating relative importance, or implying the number of the indicated technical features. Therefore, unless otherwise specified, the features limited by "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. In addition, the terms indicating the orientation or positional relationship, such as "up", "down", "left", "right", "vertical", "horizontal", etc., are described based on the orientation or relative positional relationship shown in the drawings, and are only for the purpose of facilitating the simplified description of the present application, and should not be understood as indicating that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Figure 1 is a structure schematic diagram of the display panel of the present application, as Figure 1As shown, the display panel 100 includes a color film substrate and an array substrate 110 arranged oppositely, 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 and the scan lines 115 are arranged crossly and define a pixel unit, and a plurality of 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, and the transmittance of the edge red pixels 121 is lower than that of the red pixels in other pixel units.

[0035] Compared with the prior art in which the edge sub-pixel opening area is shielded by a black matrix by 1 / 3 around the display area 112, the edge pixel color mixing ratio is different from that of the normal area, and the present application has a plurality of pixel units 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, and the transmittance of the edge red pixels 121 is lower than that of the red pixels in other pixel units, so that the chroma of the edge red pixels of the display panel 100 is substantially the same as that of the red pixels in 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, the problem of red emission at the edge is improved, and the display effect is ensured.

[0036] Figure 2 The display device of the present application is a block structure schematic diagram as shown in Figure 2 As shown, the display device 10 includes a backlight module 200 and the display panel 100 as described above, the backlight module 200 is arranged oppositely with the display panel 100, and the backlight module 200 provides a backlight source for the display panel 100. By using the display panel 100 in the display device 10, the brightness difference between the edge of the display area and the middle of the display area 112 is reduced, and the problem of red emission at the edge is improved.

[0037] The present application will be described in detail below with reference to the accompanying drawings and optional embodiments.

[0038] First embodiment:

[0039] Figure 3 is Figure 1 a schematic diagram of pixel unit arrangement structure in a top view, Figure 4 is a schematic diagram of a pixel unit structure provided by the first embodiment of the present application, as Figure 3 shown, the pixel unit array is arranged and arranged in the order of R, G, B, in combination with Figure 4 It can be seen that the display device 10 is a FFS screen (Fringe Field Switching, edge field switching technology, FFS for short), and the left and right edge pixels of the L127 gray scale picture appear red. The edge red pixel 121 includes a pixel electrode 127 and a common electrode 140 arranged in a stack, the common electrode 140 is located above the pixel electrode 127, the common electrode 140 includes a plurality of common electrode branches 123 arranged at intervals, a gap 150 is formed between every two adjacent common electrode branches 123, and the gap 150 of the edge red pixel 121 is smaller than the gap 150 of the red pixel in other pixel units. By changing the width of the gap 150 of the common electrode branch 123, the electric field between the pixel electrode 127 and the common electrode 140 can be changed, so that the transmittance of the edge red pixel 121 is changed.

[0040] 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 pixel in other pixel units; and the number of common electrode branches 123 of the edge red pixel 121 is greater than the number of common electrode branches 123 of the red pixel in other pixel units, so that in the case that the width of the common electrode branch 123 is unchanged, by changing the number of common electrode branches 123, the transmittance of the edge red pixel 121 is lower than that of the red pixel in other pixel units.

[0041] Among them, the transmittance of the red pixel in the edge pixel unit 120 is 13-16% lower than that of the red pixel in other pixel units, preferably 14%.

[0042] The inventor measured the actual product cut surface data according to the edge redness, and in the process of the display panel 100, the color resistance film thickness of the edge pixel and the film thickness of the edge OC (flat layer) are lower than those of the normal area. The film thickness variation will cause the box thickness of the edge position of the display area 112 to be 0.3 μm lower than that of the middle display area 112. Through software simulation of pixel transmittance, the same pixel design will reduce the cell gap by 0.3 μm, and the transmittance of the pixel will increase by about 14%.

[0043] Specifically, Figure 5 is an experimental data graph provided by the first embodiment of the present application, Figure 6 is a graph according toFigure 5 The linear data graph formed, in combination Figures 5-6 The inventor found through experiments that when the charging voltage is unchanged, the transmittance of the pixel changes with the size of the Cell Gap, and the change between the transmittance of the pixel and the Cell Gap is linearly increasing or decreasing. In the L127 gray scale picture, the charging voltage is 3V, and when the Cell Gap is 2.8μm, the transmittance of the pixel is 5.57%; when the Cell Gap is 3.1μm, the transmittance TR of the pixel is 6.41%, and the difference between the two Cell Gaps is 0.3μm, and the corresponding transmittance difference is (6.41-5.57) / 6.41, and the transmittance difference is calculated to be 13.1%. Therefore, by adjusting the width of the gap 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%, which can improve the problem of red edge pixels.

[0044] Of course, when the number of common electrode branches 123 of the edge red pixel 121 and the number of common electrode branches 123 of the red pixel in other pixel units remain unchanged, it is also possible to increase the width of the common electrode branch 123 of the edge red pixel 121 to make the gap 150 smaller; in addition, when the number of common electrode branches 123 of the edge red pixel 121 and the number of common electrode branches 123 of the red pixel in other pixel units remain unchanged, it is also possible to make the area of the edge red pixel 121 slightly smaller than that of other red pixels, which can reduce the transmittance of the edge red pixel 121. The specific design is according to the actual demand, which is not limited here.

[0045] Second embodiment:

[0046] Figure 7 is a structural schematic diagram of a pixel unit provided by the second embodiment of the present application, as Figure 7 As the 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, IPS for short), the edge red pixel 121 includes pixel electrode branches 122 and common electrode branches 123 arranged alternately, and the gap 150 is formed between the pixel electrode branches 122 and the common electrode branches 123. The gap 150 of the edge red pixel 121 is smaller than the gap 150 of the red pixel in other pixel units. By changing the width of the gap 150 between 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.

[0047] Specifically, the width of the pixel electrode branch 122 and the common electrode branch 123 of the edge red pixel 121 is equal to the width of the pixel electrode branch 122 and the common electrode branch 123 of the red pixel in other pixel units, and the number of the pixel electrode branch 122 and the common electrode 123 of the edge red pixel 121 is greater than the number of the pixel electrode branch 122 and the common electrode 123 of the red pixel in other pixel units, that is, the width of the slit 140 between the pixel electrode branch 122 and the common electrode branch 123 can be changed by increasing the number of the pixel electrode branch 122 and the common electrode branch 123, so that the transmittance of the edge red pixel 121 is lower than the transmittance of the red pixel in other pixel units.

[0048] Of course, in the case that the number of the pixel electrode branch 122 and the common electrode branch 123 of the edge red pixel 121 is unchanged compared with the number of the pixel electrode branch 122 and the common electrode branch 123 of the red pixel in other pixel units, it is also possible to increase the width of the pixel electrode branch 122 and the common electrode branch 123 of the edge red pixel 121. In addition, in the case that the number of the pixel electrode branch 122 of the edge red pixel 121 is unchanged compared with the number of the pixel electrode branch 122 of the red pixel in other pixel units, it is also possible to make the area of the edge red pixel 121 slightly smaller than the area of the other red pixels. The above designs can all reduce the transmittance of the edge red pixel 121.

[0049] Third embodiment:

[0050] As a third embodiment of the present application, the difference between the third embodiment and the first embodiment is that the array substrate 110 further comprises a secondary edge pixel unit 120 located on the side of the edge pixel unit 120 away from the non-display area 113, and the transmittance of the red pixel in the secondary edge pixel unit 120 is greater than the transmittance of the edge red pixel 121, and the transmittance of the red pixel in the secondary edge pixel unit 120 is less than the transmittance of the red pixel in other pixel units.

[0051] Since a transition of a plurality of pixel units is required from the non-display area 113 to the display area 112, and the red edge problem exists in the display panel 100, the sub-edge pixel unit 120 will also have a red edge problem due to its position being only next to the edge pixel unit 120, but the red edge problem will be smaller than that of the edge pixel unit 120. In order to better transition the display effect from the non-display area 113 to the display area 112, the transmittance of the sub-edge pixel unit 120 can also be appropriately adjusted and reduced. The transmittance of the red pixel of the sub-edge pixel unit 120 is reduced by 6%-8% relative to the transmittance of the red pixel in other pixel units. That is, after adjustment, in the edge pixel close to the display area 112, the transmittance of the pixel unit gradually decreases in the direction from the non-display area 113 to the display area 112, and a relatively uniform transition is achieved, so that the display effect is more uniform when the edge red edge problem is improved.

[0052] Fourth embodiment:

[0053] As a fourth embodiment of the present application, the difference between this embodiment and the first and second embodiments is 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-length ratio of the control switch of the edge red pixel 121 is smaller than the channel width-length ratio of the control switch of the red pixel in other pixel units. By changing the channel width-length ratio of the pixel, the charging rate of the pixel electrode 127 can be changed to change the transmittance, so as to improve the edge red problem of the display panel 100.

[0054] The channel size can be adjusted by first monitoring and then adjusting the channel size according to the monitoring result. An inductor can be arranged to monitor the mixed light degree of the edge of the display device 10. When the mixed light degree reaches a threshold value, the controller is controlled to adjust the size of the channel, so as to change the size of the control switch channel and reduce the transmittance.

[0055] Fifth embodiment:

[0056] Figure 8 is a pixel structure schematic diagram provided by the fifth embodiment of the present application, as shown in Figure 8As shown, as the fifth embodiment of the present application, the difference between this embodiment and the first, second, third, and fourth embodiments is that the edge red pixel 121 is divided into four domains in a "field" shape. The two left domains are set as the near sub-pixels 124, and the two right domains are set as the far sub-pixels 125. The near sub-pixels 124 are close to the non-display area 113, and the far sub-pixels 125 are located on the side of the near sub-pixels 124 away from the non-display area 113. The transmittance of the near sub-pixels 124 is 15%-17% lower than the transmittance of the red pixels in other pixel units, and the transmittance of the far sub-pixels 125 is 11%-13% lower than the transmittance of the red pixels in other pixel units. That is, the edge red pixel 121 is divided into two parts. Along the direction from the non-display area 113 to the display area 112, the transmittance of the edge red pixel 121 gradually increases from low to high, making the light transmittance at the edge relatively uniform and also improving the problem of edge redness.

[0057] Sixth Embodiment:

[0058] Figure 9 is a schematic diagram of a pixel driving structure provided by the sixth embodiment of the present application. As Figure 8 shown, as the sixth embodiment of the present application, the difference between this embodiment and the first, second, third, fourth, and fifth embodiments is that 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 the gate of the first thin film transistor 129. The source of the first thin film transistor 129 is connected to the scan line 115. The gate of the second thin film transistor 130 is connected to the drain of the first thin film transistor 129. The source of the second thin film transistor 130 is connected to the pixel electrode 127. The drain of the second thin film transistor 130 is connected to the data line 114. The gate of the third thin film transistor 131 is connected to the source of the first thin film transistor 129 through the scan connection. The source of the third thin film transistor 131 is connected to the pixel electrode 127. The drain of the third thin film transistor 131 is respectively connected to the data line 114;

[0059] Among them, the display panel 100 controls the pixel driving circuit 128 by controlling the control signal output by the control signal line 126 to achieve the brightness control of the edge pixel unit 120.

[0060] The edge pixel is increased to two sets of TFTs from a conventional set of TFTs, TFT2 and TFT3 are added to equal the normal area pixel TFT size, an additional control signal line 126 is added, the charging efficiency of the edge pixel is changed by changing the control signal voltage to control the on or off of the pixel TFT2, the function of real-time brightness adjustment of the edge pixel is realized, and the problem of red or blue caused by the edge pixel brightness of the panel is solved.

[0061] It should be noted that the inventive concept of the present application can form a very large number of embodiments, but the length of the application file is limited and cannot list them one by one, therefore, on the premise of not conflicting, the above described embodiments or technical features can be combined to form new embodiments, and the combination of each embodiment or technical feature will enhance the original technical effect.

[0062] The above is a further detailed description of the present application in combination with specific optional embodiments, and cannot be considered as limiting the specific implementation of the present application to these descriptions. For ordinary skilled persons in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as belonging to the protection scope of the present application.

Claims

1. A display panel comprising a color filter substrate and an array substrate disposed opposite to each other, the array substrate comprising a substrate body, multiple data lines, multiple scan lines, and multiple pixel units, the substrate body being divided into a display area and a non-display area, the data lines and scan lines being intersected and defining a pixel unit, the multiple pixel units being distributed in an array in the display area of ​​the substrate body, characterized in that, The pixel unit includes red pixels, green pixels, and blue pixels. A portion of the pixel unit near the non-display area is an edge pixel unit. The edge pixel unit includes edge red pixels, which are located on the side of the edge pixel unit closer to the non-display area. The transmittance of the edge red pixels is lower than that of the red pixels in the other pixel units. 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 the gate of the first thin-film transistor, the source of the first thin-film transistor is connected to the scan line, the gate of the second thin-film transistor is connected to the drain of the first thin-film transistor, the source of the second thin-film transistor is connected to the pixel electrode, the drain of the second thin-film transistor is connected to the data line, the gate of the third thin-film transistor is connected to the source of the first thin-film transistor through the scan line, the source of the third thin-film transistor is connected to the pixel electrode, and the drain of the third thin-film transistor is connected to the data line. The display panel controls the pixel driving circuit by controlling the control signal output by the control signal line, thereby controlling the brightness of the edge pixel unit.

2. The display panel according to claim 1, characterized in that, The edge red pixel includes a pixel electrode and a common electrode. The common electrode is located above the pixel electrode and includes multiple common electrode branches spaced apart. A slit is formed between every two adjacent common electrode branches. The slit of the edge red pixel is smaller than the slit of the red pixels in other pixel units.

3. The display panel according to claim 2, characterized in that, The width of the common electrode branch of the edge red pixel is equal to the width of the common electrode branch of the red pixels in the other pixel units; and the number of the common electrode branches of the edge red pixel is greater than the number of the common electrode branches of the red pixels in the other pixel units; or The number of common electrode branches of the edge red pixels is equal to the number of common electrode branches of the red pixels in the other pixel units; and the width of the common electrode branches of the edge red pixels is greater than the width of the common electrode branches of the red pixels in the other pixel units.

4. The display panel according to claim 1, characterized in that, The edge red pixel includes alternating pixel electrode branches and common electrode branches, with slits spaced between the pixel electrode branches and the common electrode branches. The slits of the edge red pixel are smaller than the slits of the red pixels in other pixel units.

5. The display panel according to claim 2 or 3, characterized in that, The transmittance of the edge red pixel is 13%-16% lower than that of the red pixels in the other pixel units.

6. The display panel according to claim 1, characterized in that, 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 the channel width-to-length ratio of the control switches of the red pixels in the other pixel units.

7. The display panel according to claim 1, characterized in that, The array substrate further includes a secondary edge pixel unit located on the side of the edge pixel unit away from the non-display area. The transmittance of the red pixel in the secondary edge pixel unit is greater than the transmittance of the edge red pixel; the transmittance of the red pixel in the secondary edge pixel unit is less than the transmittance of the red pixels in the other pixel units.

8. The display panel according to claim 1, characterized in that, The edge red pixels are divided into near-side sub-pixels and far-side sub-pixels. The near-side sub-pixels are close to the non-display area, and the far-side sub-pixels are located on the side of the near-side sub-pixels that are far from the non-display area. The transmittance of the near-side sub-pixels is 15%-17% lower than that of the red pixels in other pixel units, and the transmittance of the far-side sub-pixels is 11%-13% lower than that of the red pixels in other pixel units.

9. A display device, comprising a backlight module and a display panel as described in any one of claims 1-8, characterized in that, The backlight module is disposed opposite to the display panel, and the backlight module provides a backlight source for the display panel.

Images