Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel comprises a plurality of sub-pixels and a plurality of support columns arranged at intervals, the support columns being located between at least some adjacent sub-pixels; the plurality of sub-pixels comprises a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels; the orthographic projection of the support columns on the plane in the first direction is arranged staggeredly with the orthographic projection of the first sub-pixels on the plane in the first direction; the orthographic projection of the support columns on the plane in the first direction is arranged at least partially staggeredly with the orthographic projection of the second sub-pixels on the plane in the first direction; and the orthographic projection of the support columns on the plane in the first direction is arranged at least partially staggeredly with the orthographic projection of the third sub-pixels on the plane in the first direction. The application can reduce the color deviation phenomenon of the display panel at a large viewing angle and improve the display effect of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Currently, display panels are widely used in display devices (such as mobile phones, tablets, e-readers, and navigation devices). Among them, organic light-emitting diodes (OLEDs) are gradually being applied to display panels due to their excellent properties such as low power consumption, high color saturation, wide viewing angle, thinness, and flexibility.

[0003] However, when users view the display panel from a wide angle, color shifts will occur on the display panel, affecting the display effect. Summary of the Invention

[0004] In order to overcome the above-mentioned defects in related technologies, the purpose of this application is to provide a display panel and display device to reduce the color shift phenomenon of the display panel at a wide viewing angle and improve the display effect of the display panel.

[0005] One embodiment of this application provides a display panel, including a plurality of sub-pixels and a plurality of support pillars spaced apart, wherein the support pillars are located between at least partially adjacent sub-pixels; the plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels;

[0006] The orthographic projection of the support column on the plane of the first direction is offset from the orthographic projection of the first sub-pixel on the plane of the first direction; the orthographic projection of the support column on the plane of the first direction is at least partially offset from the orthographic projection of the second sub-pixel on the plane of the first direction; the orthographic projection of the support column on the plane of the first direction is at least partially offset from the orthographic projection of the third sub-pixel on the plane of the first direction.

[0007] In the display panel described above, optionally, the orthographic projection of the support column on the plane of the second direction is offset from the orthographic projection of the first sub-pixel on the plane of the second direction; the orthographic projection of the support column on the plane of the second direction is at least partially offset from the orthographic projection of the second sub-pixel on the plane of the second direction; and the orthographic projection of the support column on the plane of the second direction is at least partially overlapped with the orthographic projection of the third sub-pixel on the plane of the second direction.

[0008] Wherein, the plane containing the first direction is perpendicular to the plane containing the second direction;

[0009] Preferably, the plane containing the first direction is the plane containing the width direction of the display panel, the plane containing the second direction is the plane containing the length direction of the display panel, and the length of the display panel in the plane containing the first direction is less than the length of the display panel in the plane containing the second direction.

[0010] In the display panel described above, optionally, the overlap ratio between the orthographic projection of the support column on the plane in the first direction and the orthographic projection of the second sub-pixel on the plane in the first direction is less than or equal to 20% of the area of ​​the second sub-pixel; the overlap ratio between the orthographic projection of the support column on the plane in the first direction and the orthographic projection of the third sub-pixel on the plane in the first direction is less than or equal to 20% of the area of ​​the third sub-pixel.

[0011] In the display panel described above, optionally, the overlap ratio between the orthographic projection of the support column on the plane of the second direction and the orthographic projection of the second sub-pixel on the plane of the second direction is less than or equal to 20% of the area of ​​the second sub-pixel; and the overlap area between the orthographic projection of the support column on the plane of the second direction and the orthographic projection of the third sub-pixel on the plane of the second direction is greater than or equal to 25% of the area of ​​the third sub-pixel.

[0012] In the display panel described above, optionally, the first sub-pixel is a green sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a red sub-pixel.

[0013] As described above, in the display panel, optionally, the plurality of sub-pixels form a plurality of pixel units, each pixel unit including a first sub-pixel, a second sub-pixel, and a third sub-pixel. At least a portion of the pixel units are provided with a support pillar. Within the same pixel unit, the support pillar and the first sub-pixel, the second sub-pixel, and the third sub-pixel satisfy the following relationship:

[0014] D1 = D2 = D3, or D2 > D3 ≥ D1;

[0015] Wherein, D1 is the distance between the center of the support pillar and the center of the third sub-pixel; D2 is the distance between the center of the support pillar and the center of the first sub-pixel; and D3 is the distance between the center of the support pillar and the center of the second sub-pixel.

[0016] Preferably, in the second direction, the orthographic projections of the support columns on the plane containing the second direction overlap;

[0017] Preferably, the display panel includes an axis parallel to the second direction, and the support column is symmetrical with respect to the axis.

[0018] In the display panel described above, optionally, two adjacent pixel units include a first pixel unit and a second pixel unit. The first sub-pixel, the second sub-pixel, and the third sub-pixel of the first pixel unit, and the support pillar corresponding to the first pixel unit, satisfy the following relationship:

[0019] D1=D2=D3,L2≥L3>L1; or, D2>D3≥D1,L2≥L3>L1;

[0020] Wherein, D1 is the distance between the center of the support pillar in the first pixel unit and the center of the third sub-pixel; D2 is the distance between the center of the support pillar in the first pixel unit and the center of the first sub-pixel; D3 is the distance between the center of the support pillar in the first pixel unit and the center of the second sub-pixel; L1 is the distance between the center of the support pillar in the second pixel unit and the center of the third sub-pixel; L2 is the distance between the center of the support pillar in the second pixel unit and the center of the first sub-pixel; L3 is the distance between the center of the support pillar in the second pixel unit and the center of the second sub-pixel.

[0021] Preferably, in the second direction, the orthographic projections of the support columns on the plane containing the second direction are at least partially offset.

[0022] Optionally, the display panel described above may further include an array substrate, a pixel defining layer located on one side of the array substrate, and the support pillars disposed on the side of the pixel defining layer away from the array substrate.

[0023] The support column includes multiple sub-support columns stacked together. The sub-support columns are in the shape of a frustum or a pyramid, with a plane perpendicular to the axis of the support column as the cross-section. The cross-sectional area of ​​the multiple sub-support columns gradually decreases along the direction perpendicular to the display panel and away from the pixel limiting layer.

[0024] Preferably, taking a plane perpendicular to the axis of the support column as a cross section, among the multiple sub-support columns of the same support column, the cross-sectional area of ​​the sub-support column that is farthest from the pixel limiting layer is 15-50% of the cross-sectional area of ​​the sub-support column that is closest to the pixel limiting layer.

[0025] The display panel described above may optionally further include an encapsulation layer located on the side of the support pillar away from the array substrate, along a direction perpendicular to the array substrate, wherein the distance between the surface of the encapsulation layer closest to the array substrate and the array substrate is less than or equal to 3.5 micrometers;

[0026] And / or,

[0027] The height of the support column is less than or equal to 2.5 micrometers.

[0028] Another embodiment of this application provides a display device, including a plurality of sub-pixels and a plurality of support pillars spaced apart, the support pillars being located between at least partially adjacent sub-pixels; the plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels; the orthographic projection of the support pillars on the plane of a first direction is offset from the orthographic projection of the first sub-pixels on the plane of the first direction; the orthographic projection of the support pillars on the plane of the first direction is at least partially offset from the orthographic projection of the second sub-pixels on the plane of the first direction; the orthographic projection of the support pillars on the plane of the first direction is at least partially offset from the orthographic projection of the third sub-pixels on the plane of the first direction. The display panel of this application is configured such that the orthographic projection of the support column on the plane of the first direction is offset from the orthographic projection of the first sub-pixel on the plane of the first direction; the orthographic projection of the support column on the plane of the first direction is at least partially offset from the orthographic projection of the second sub-pixel on the first direction; and the orthographic projection of the support column on the plane of the first direction is at least partially offset from the orthographic projection of the third sub-pixel on the plane of the first direction. This balances the brightness attenuation ratio of the first sub-pixel, the second sub-pixel, and the third sub-pixel at large viewing angles, reduces the color shift phenomenon of the display panel at large viewing angles, and improves the display effect of the display panel. As a result, the brightness attenuation ratio of the light emitted by the first sub-pixel is consistent with the brightness attenuation ratio of the light emitted by the second and third sub-pixels, thereby reducing the color shift phenomenon of the display panel at large viewing angles and improving the display effect of the display panel. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the viewing angle in the display panel;

[0031] Figure 2 This is a simplified structural diagram of a display panel in related technologies;

[0032] Figure 3 A simplified structural diagram of a display panel provided in one embodiment of this application;

[0033] Figure 4 A simplified structural diagram of a display panel provided in another embodiment of this application;

[0034] Figure 5 This is a simplified structural diagram of a support column provided in one embodiment of this application.

[0035] Figure label:

[0036] 10-Display panel;

[0037] 100 - First sub-pixel;

[0038] 200 - Second subpixel;

[0039] 300 - Third sub-pixel;

[0040] 400 - Support column; 410 - Sub-support column;

[0041] 20 - Reference plane;

[0042] V1-the first pixel row;

[0043] V2-the second pixel row;

[0044] S1 - Support column row;

[0045] X-Second direction;

[0046] Y - First direction. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0048] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0049] First, combine Figure 1 The following is an explanation of the terms used in this application:

[0050] The viewing angle refers to the angle θ between the line of sight L1 and the perpendicular line L0 of the display panel.

[0051] A wide viewing angle refers to an angle θ between the line of sight L1 and the vertical line L0 of the display panel, which is between 60° and 80°.

[0052] In the solutions of related technologies, such as Figure 2 As shown, the display panel includes multiple sub-pixels, multiple support pillars (SPCs) disposed on the pixel limiting layer, and an encapsulation layer disposed above the support pillars. The sub-pixels include several first sub-pixels 100, several second sub-pixels 200, and several third sub-pixels 300. The first sub-pixels 100 can be green sub-pixels, the second sub-pixels 200 can be red sub-pixels, and the third sub-pixels 300 can be blue sub-pixels. Among them, a green sub-pixel, a blue sub-pixel, and a red sub-pixel together form a pixel unit. The multiple green sub-pixels, multiple blue sub-pixels, and multiple red sub-pixels are arranged in a certain order. When in use, the display panel can display different colors and images by adjusting the brightness of different color sub-pixels.

[0053] Continue to refer to Figure 2 The display panel 10 includes a plurality of first pixel rows V1 and a plurality of second pixel rows V2 arranged along the second direction X, and the plurality of first pixel rows V1 and the plurality of second pixel rows V2 are alternately arranged in the first direction Y; wherein the first pixel row V1 includes a plurality of first sub-pixels 100 arranged along the second direction X, and the second pixel row V2 includes a plurality of second sub-pixels 200 and a plurality of third sub-pixels 300 arranged along the second direction X and alternately arranged; a plurality of support pillars 400 are also provided in the first pixel row V1, and the support pillars 400 are disposed between two adjacent first sub-pixels 100.

[0054] However, when a user views the display panel 10 from the second direction X with a wide viewing angle, the brightness attenuation ratio of the red light emitted by the red sub-pixel is less than that of the green light emitted by the green sub-pixel at the same viewing angle; and the support column 400 in the second direction X will block some of the light emitted by the green sub-pixel, causing the display panel 10 to produce a red color shift, which affects the display effect of the display panel 10.

[0055] In view of this, the embodiments of this application aim to provide a display panel and display device, which balances the brightness attenuation ratio of the first sub-pixel, the second sub-pixel, and the third sub-pixel at the same large viewing angle by setting the orthographic projection of the support column on the plane of the first direction to be offset from the orthographic projection of the first sub-pixel on the plane of the first direction; setting the orthographic projection of the support column on the plane of the first direction to be at least partially offset from the orthographic projection of the second sub-pixel on the plane of the first direction; and setting the orthographic projection of the support column on the plane of the first direction to be at least partially offset from the orthographic projection of the third sub-pixel on the plane of the first direction, thereby reducing the color shift phenomenon of the display panel at large viewing angles and improving the display effect of the display panel.

[0056] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can gain a more detailed understanding of the contents of this application.

[0057] Example 1

[0058] Figure 3 A simplified structural diagram of a display panel provided in one embodiment of this application; Figure 4 A simplified structural diagram of a display panel provided in another embodiment of this application.

[0059] Please refer to Figures 3-4 This embodiment provides a display panel 10, which is rectangular in shape. The length of the display panel 10 in the plane of the second direction X is greater than the length of the display panel 10 in the plane of the first direction Y. The plane of the second direction X is perpendicular to the plane of the first direction Y. That is, the plane of the second direction X is the plane of the length direction of the display panel 10, and the plane of the first direction Y is the plane of the width direction of the display panel 10.

[0060] The display panel 10 includes a plurality of sub-pixels spaced apart and a plurality of support pillars 400, the support pillars 400 being located between at least partially adjacent sub-pixels; the plurality of sub-pixels includes a plurality of first sub-pixels 100, a plurality of second sub-pixels 200 and a plurality of third sub-pixels 300.

[0061] like Figure 3 and Figure 4 As shown, in this embodiment, the display panel 10 includes a plurality of first pixel rows V1 and a plurality of second pixel rows V2 alternately arranged along a first direction Y. The first pixel rows V1 include a plurality of first sub-pixels 100 arranged along a second direction X, and the second pixel rows V2 include a plurality of second sub-pixels 200 and a plurality of third sub-pixels 300 alternately arranged along the second direction X. The plurality of first pixel rows V1 and the plurality of second pixel rows V2 are arranged alternately in the first direction Y. The first sub-pixel 100 can be a green sub-pixel, the second sub-pixel 200 can be a blue sub-pixel, and the third sub-pixel 300 can be a red sub-pixel.

[0062] The first pixel row V1 includes multiple green sub-pixels, and the second pixel row V2 includes multiple blue sub-pixels and multiple red sub-pixels, which are alternately distributed in the second pixel row V2. The multiple first pixel rows V1 and multiple second pixel rows V2 are arranged alternately in the first direction Y.

[0063] Because the brightness attenuation ratio of light emitted by different sub-pixels differs when viewing the display panel 10 from the same viewing angle. For example, when viewing the display panel 10 from left to right along the second direction X, after the light emitted by the sub-pixels exits the display panel 10 and passes through the pixel limiting layer and the encapsulation layer and cover plate above it, the brightness attenuation ratio of the red light emitted by the red sub-pixel 100 is less than that of the green light emitted by the green sub-pixel 200. In order to balance the brightness attenuation ratio of different sub-pixels under the same large viewing angle, this embodiment also provides a support column row S1 between adjacent first pixel row V1 and second pixel row V2. The support column row S1 includes a plurality of support columns 400 arranged along the second direction X, and the support columns 400 are disposed on the pixel limiting layer.

[0064] In the second direction X, the orthographic projection of the support column 400 on the plane containing the first direction Y is offset from the orthographic projection of the first sub-pixel 100 on the plane containing the first direction Y; the orthographic projection of the support column on the plane containing the first direction Y is at least partially offset from the orthographic projection of the second sub-pixel 200 on the plane containing the first direction Y; and the orthographic projection of the support column on the plane containing the first direction Y is at least partially offset from the orthographic projection of the third sub-pixel 300 on the plane containing the first direction Y.

[0065] In other words, the projection of the support column 400 in the reference plane 20 (referring to the plane perpendicular to the second direction X) in this embodiment may or may not coincide with the projections of the second sub-pixel 200 and the third sub-pixel 300 in the reference plane 20, and the projection of the support column 400 in the reference plane 20 may not coincide with the projection of the first sub-pixel 100 in the reference plane 20.

[0066] Please continue to refer to this. Figures 3-4 With this setting, when viewing the display panel 10 from a wide viewing angle, the support column 400 in the second direction X does not block the light emitted from the green sub-pixel, but blocks part of the light emitted from the blue and red sub-pixels, or does not block the light emitted from the blue and red sub-pixels. This ensures that when viewing the display panel 10 from the same wide viewing angle along the second direction X, the brightness attenuation ratios of the green sub-pixels, blue sub-pixels, and red sub-pixels are consistent, reducing color shift when viewing the display panel 10 from the same wide viewing angle along the second direction X, and improving the display effect of the display panel 10.

[0067] With the above settings, when viewing the display panel 10 from the same angle along the second direction X, the brightness attenuation ratios of the first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300 are consistent at the same angle, thereby reducing the color shift phenomenon of the display panel at a large angle and improving the display effect of the display panel.

[0068] Preferably, the overlapping area of ​​the orthographic projection of the support column 400 on the plane containing the first direction Y and the orthographic projection of the second sub-pixel 200 on the plane containing the first direction Y is less than or equal to 20% of the area of ​​the second sub-pixel 200; the overlapping area of ​​the orthographic projection of the support column 400 on the plane containing the first direction Y and the orthographic projection of the third sub-pixel 300 on the plane containing the first direction Y is less than or equal to 20% of the area of ​​the third sub-pixel 300. In other words, the overlap ratio of the projection of the support column 400 in the reference plane 20 and the projection of the second sub-pixel 200 in the reference plane 20 is less than or equal to 20%; the overlap ratio of the projection of the support column 400 in the reference plane 20 and the projection of the third sub-pixel 300 in the reference plane 20 is less than or equal to 20%.

[0069] The above settings can better balance the brightness attenuation ratio of the first sub-pixel 100, the second sub-pixel 200 and the third sub-pixel 300 under the same large viewing angle on the plane where the first direction Y is located, thereby better reducing the color shift phenomenon of the display panel 10 under large viewing angle and improving the display effect of the display panel 10.

[0070] Furthermore, when viewing the display panel 10 from the same angle along the first direction Y, the brightness attenuation ratio of the light emitted by different sub-pixels is also different. For example, when viewing the display panel 10 from top to bottom along the first direction Y, after the light emitted by the sub-pixels exits the display panel 10 and passes through the pixel limiting layer and the encapsulation layer and cover plate above it, the brightness attenuation ratio of the red light emitted by the red sub-pixel 100 is less than the brightness attenuation ratio of the green light emitted by the green sub-pixel 200.

[0071] To balance the brightness attenuation ratio of different sub-pixels under the same large viewing angle in the first direction Y, the orthographic projection of the support column 400 on the plane in the second direction X is offset from the orthographic projection of the first sub-pixel 100 on the plane in the second direction X; the orthographic projection of the support column on the plane in the second direction X is at least partially offset from the orthographic projection of the second sub-pixel 200 on the plane in the second direction X; and the orthographic projection of the support column on the plane in the second direction X is at least partially offset from the orthographic projection of the third sub-pixel 300 on the plane in the second direction X.

[0072] With this configuration, when viewing the display panel 10 from a wide viewing angle, the support column 400 in the first direction Y does not block the light emitted from the green sub-pixel, but blocks part of the light emitted from the blue and red sub-pixels, or does not block the light emitted from the blue and red sub-pixels. This ensures that when viewing the display panel 10 from the same wide viewing angle along the first direction Y, the brightness attenuation ratios of the green sub-pixels, blue sub-pixels, and red sub-pixels are consistent, reducing color shift when viewing the display panel 10 from the same wide viewing angle along the first direction Y, and improving the display effect of the display panel 10.

[0073] With the above settings, when viewing the display panel 10 at the same wide viewing angle along the first direction Y, the brightness attenuation ratios of the first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300 are consistent at the same wide viewing angle, thereby reducing the color shift phenomenon of the display panel at wide viewing angles and improving the display effect of the display panel.

[0074] Preferably, the overlapping area of ​​the orthographic projection of the support column 400 on the plane in the second direction X and the orthographic projection of the second sub-pixel 200 on the plane in the second direction X is less than or equal to 20% of the area of ​​the second sub-pixel 200; the overlapping area of ​​the orthographic projection of the support column 400 on the plane in the second direction X and the orthographic projection of the third sub-pixel 300 on the plane in the second direction X is greater than or equal to 25% of the area of ​​the third sub-pixel 300.

[0075] The above settings can better balance the brightness attenuation ratio of the first sub-pixel 100, the second sub-pixel 200 and the third sub-pixel 300 under the same large viewing angle in the first direction Y, thereby better reducing the color shift phenomenon of the display panel 10 under large viewing angle and improving the display effect of the display panel 10.

[0076] Furthermore, such as Figure 3 As shown, multiple sub-pixels form several pixel units, each pixel unit including a first sub-pixel 100, a second sub-pixel 200, and a third sub-pixel 300. At least some pixel units are provided with a support post 400. In the same pixel unit, the support post 400 and the first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300 satisfy the following relationship:

[0077] D1 = D2 = D3, or D2 > D3 ≥ D1;

[0078] Wherein, D1 is the distance between the center of the support column 400 and the center of the third sub-pixel 300; D2 is the distance between the center of the support column 400 and the center of the first sub-pixel 100; and D3 is the distance between the center of the support column 400 and the center of the second sub-pixel 200.

[0079] In other words, Figure 3 A blue sub-pixel and a red sub-pixel in the second pixel row V2, together with the first green sub-pixel in the first pixel row V1 above them, constitute the first pixel unit; the distance from the center of the support pillar 400 in the support pillar row S1 to the center of the red sub-pixel in the pixel unit is D1, the distance from the center of the support pillar 400 in the support pillar row S1 to the center of the green sub-pixel in the pixel unit is D2, and the distance from the center of the support pillar 400 in the support pillar row S1 to the center of the blue sub-pixel in the pixel unit is D3. D1, D2, and D3 satisfy the following relationship:

[0080] D1 = D2 = D3, or D2 > D3 ≥ D1.

[0081] Under the above conditions, the brightness attenuation ratio of the first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300 under the same large viewing angle in the second direction X and the first direction Y can be better balanced, thereby better reducing the color shift phenomenon of the display panel 10 under large viewing angle and improving the display effect of the display panel 10.

[0082] Preferably, in the first direction Y, the orthogonal projections of the plurality of support columns 400 on the plane containing the second direction X overlap.

[0083] Preferably, the display panel 10 includes an axis parallel to the second direction X, and a plurality of support columns 400 are symmetrical about the axis.

[0084] In another possible implementation, such as Figure 4 As shown, two adjacent pixel units include a first pixel unit and a second pixel unit. The first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300 of the first pixel unit, and the corresponding support pillar 400 of the first pixel unit, satisfy the following relationship:

[0085] D1=D2=D3,L2≥L3>L1; or, D2>D3≥D1,L2≥L3>L1;

[0086] Wherein, D1 is the distance between the center of the support pillar 400 in the first pixel unit and the center of the third sub-pixel 300; D2 is the distance between the center of the support pillar 400 in the first pixel unit and the center of the first sub-pixel 100; D3 is the distance between the center of the support pillar 400 in the first pixel unit and the center of the second sub-pixel 200; L1 is the distance between the center of the support pillar 400 in the second pixel unit and the center of the third sub-pixel 300; L2 is the distance between the center of the support pillar 400 in the second pixel unit and the center of the first sub-pixel 100; L3 is the distance between the center of the support pillar 400 in the second pixel unit and the center of the second sub-pixel 200.

[0087] In other words, Figure 4 A blue sub-pixel and a red sub-pixel in the second pixel row V2, together with a green sub-pixel in the first pixel row V1 above them, form a first pixel unit; a blue sub-pixel and a red sub-pixel in the second pixel row V2, together with a green sub-pixel in the first pixel row V1 below them, form a second pixel unit; the center of a support pillar 400 in the support pillar row S1 between the second pixel row V2 and the first pixel row V1 above them is D1, the center of the support pillar 400 in the support pillar row S1 between the second pixel row V2 and the first pixel row V1 below them is D2, and the center of the support pillar 400 in the support pillar row S1 is L1, the center of the support pillar 400 in the support pillar row S1 between the second pixel row V2 and the first pixel row V1 below them is L2, and the center of the support pillar 400 in the support pillar row S1 below them is L3, and the following relationship exists between D1, D2, D3, L1, L2, and L3:

[0088] D1=D2=D3,L2≥L3>L1; or, D2>D3≥D1,L2≥L3>L1.

[0089] Under the above conditions, the brightness attenuation ratio of the first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300 under the same large viewing angle in the second direction X and the first direction Y can be better balanced, thereby better reducing the color shift phenomenon of the display panel 10 under large viewing angle and improving the display effect of the display panel 10.

[0090] Preferably, in the first direction Y, the orthographic projections of the plurality of support columns 400 on the plane containing the second direction X are at least partially staggered.

[0091] It is understood that the display panel 10 in this embodiment also includes an array substrate, a pixel defining layer located on one side of the array substrate, and a support pillar 400 disposed on the side of the pixel defining layer away from the array substrate. Please refer to... Figure 5 In this embodiment, the support column 400 includes a plurality of sub-support columns 410 stacked together, and the sub-support columns 410 are in the shape of a frustum or a pyramid. Taking a plane perpendicular to the axis of the support column 400 as a cross-section, the cross-sectional area of ​​the plurality of sub-support columns 410 gradually decreases along the direction perpendicular to the display panel 10 and away from the pixel limiting layer.

[0092] Preferably, taking a plane perpendicular to the axis of the support column 400 as a cross section, among the multiple sub-support columns 410 of the same support column 400, the cross-sectional area of ​​the sub-support column 410 that is farthest from the pixel limiting layer is 15-50% of the cross-sectional area of ​​the sub-support column 410 that is closest to the pixel limiting layer.

[0093] like Figure 5 As shown, the support column 400 in this embodiment includes three sub-support columns 410. All three sub-support columns 410 are frustum-shaped, with a plane perpendicular to the axis of the support column 400 as the cross-section. The cross-sectional area of ​​the three sub-support columns 410 decreases from bottom to top; that is, the uppermost sub-support column 410 has the smallest cross-sectional area, and the lowermost sub-support column 410 has the largest cross-sectional area.

[0094] Because the cross-sectional area of ​​the uppermost sub-support column 410 is small, the obstruction of the light emitted by the support column 400 to each first sub-pixel 100, each second sub-pixel 200 and each third sub-pixel 300 is reduced at a wide viewing angle (such as 60°-80°), which helps to increase the overall light output of the display panel and improve the overall brightness of the display panel.

[0095] In one possible implementation, taking a plane perpendicular to the centerline of the support column 400 as a cross-section, among the multiple sub-support columns 410 of the same support column 400, the cross-sectional area of ​​the uppermost sub-support column 410 is 15-50% of the cross-sectional area of ​​the lowermost sub-support column 410. This design, while ensuring the overall support strength of the support column 400, reduces the obstruction of light emitted by the uppermost sub-support column 410 to the first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300, thereby increasing the overall light output of the display panel and improving its overall brightness.

[0096] Preferably, the cross-sectional area of ​​the sub-support column 410 is circular or elliptical, which makes the specific surface area of ​​the sub-support column 410 relatively small.

[0097] Furthermore, the display panel 10 in this embodiment also includes an encapsulation layer located on the side of the support pillar 400 away from the array substrate. Along a direction perpendicular to the array substrate, the distance from the surface of the encapsulation layer closest to the array substrate to the array substrate is less than or equal to 3.5 micrometers; and / or, the height of the support pillar 400 is less than or equal to 2.5 micrometers. This design reduces the light emission paths of the first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300, thereby reducing the amount of light deflection. In addition, it reduces light interference between the first sub-pixel 100, the second sub-pixel 200, and the third sub-pixel 300 and the encapsulation layer, weakening the microcavity effect, thereby further reducing color shift of the display panel 10 at wide viewing angles and improving the display effect of the display panel 10.

[0098] Example 2

[0099] This embodiment provides a display device, including the display panel as described in Embodiment 1 above. The display device in this embodiment can be a mobile phone, tablet computer, e-reader, navigation device, smart bracelet, personal digital assistant, or other product with display and camera functions.

[0100] The display device provided in this embodiment uses the display panel of the first embodiment described above, and therefore also has the advantages of the aforementioned display panel. For details, please refer to the relevant description above.

[0101] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0102] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0103] It should be noted that in the description of this application, the terms "first" and "second" are used only for convenience in describing different components and should not be construed as indicating or implying a sequential relationship, relative importance, or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features.

[0104] The embodiments or implementation methods in this application are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0105] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with an embodiment or example that are included in at least one embodiment or example of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that, It includes a plurality of sub-pixels spaced apart and a plurality of support pillars, the support pillars being located between at least partially adjacent sub-pixels; the plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels; The orthographic projection of the support column on the plane of the first direction is offset from the orthographic projection of the first sub-pixel on the plane of the first direction; the orthographic projection of the support column on the plane of the first direction is at least partially offset from the orthographic projection of the second sub-pixel on the plane of the first direction; the orthographic projection of the support column on the plane of the first direction is at least partially offset from the orthographic projection of the third sub-pixel on the plane of the first direction. The orthographic projection of the support column on the plane of the second direction is offset from and does not coincide with the orthographic projection of the first sub-pixel on the plane of the second direction; the orthographic projection of the support column on the plane of the second direction is at least partially offset from the orthographic projection of the second sub-pixel on the plane of the second direction; the orthographic projection of the support column on the plane of the second direction is at least partially offset from the orthographic projection of the third sub-pixel on the plane of the second direction. Wherein, the plane containing the first direction is perpendicular to the plane containing the second direction; The overlapping area of ​​the orthographic projection of the support column onto the plane of the second direction and the orthographic projection of the second sub-pixel onto the plane of the second direction is less than or equal to 20% of the area of ​​the second sub-pixel; the overlapping area of ​​the orthographic projection of the support column onto the plane of the second direction and the orthographic projection of the third sub-pixel onto the plane of the second direction is greater than or equal to 25% of the area of ​​the third sub-pixel. The first sub-pixel is a green sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a red sub-pixel.

2. The display panel according to claim 1, characterized in that, The plane containing the first direction is the plane containing the width direction of the display panel, and the plane containing the second direction is the plane containing the length direction of the display panel. The length of the display panel in the plane containing the first direction is less than the length of the display panel in the plane containing the second direction.

3. The display panel according to claim 1, characterized in that, The overlapping area of ​​the orthographic projection of the support column on the plane in the first direction and the orthographic projection of the second sub-pixel on the plane in the first direction is less than or equal to 20% of the area of ​​the second sub-pixel; the overlapping area of ​​the orthographic projection of the support column on the plane in the first direction and the orthographic projection of the third sub-pixel on the plane in the first direction is less than or equal to 20% of the area of ​​the third sub-pixel.

4. The display panel according to claim 1, characterized in that, The plurality of sub-pixels form a plurality of pixel units, each pixel unit including a first sub-pixel, a second sub-pixel, and a third sub-pixel. At least a portion of the pixel units are provided with a support pillar. In the same pixel unit, the support pillar and the first sub-pixel, the second sub-pixel, and the third sub-pixel satisfy the following relationship: D1=D2=D3, or D2>D3≥D1; Wherein, D1 is the distance between the center of the support column and the center of the third sub-pixel; D2 is the distance between the center of the support column and the center of the first sub-pixel; and D3 is the distance between the center of the support column and the center of the second sub-pixel.

5. The display panel according to claim 4, characterized in that, The orthographic projections of the support columns on the plane containing the second direction overlap.

6. The display panel according to claim 5, characterized in that, The display panel includes an axis parallel to the second direction, and the support column is symmetrical with respect to the axis.

7. The display panel according to claim 1, characterized in that, Two adjacent pixel units include a first pixel unit and a second pixel unit. The first sub-pixel, the second sub-pixel, and the third sub-pixel of the first pixel unit, and the support pillar corresponding to the first pixel unit, satisfy the following relationship: D1= D2 = D3, L2 ≥ L3 > L1; or, D2> D3 ≥ D1, L2 ≥ L3 > L1; Wherein, D1 is the distance between the center of the support pillar in the first pixel unit and the center of the third sub-pixel; D2 is the distance between the center of the support pillar in the first pixel unit and the center of the first sub-pixel; D3 is the distance between the center of the support pillar in the first pixel unit and the center of the second sub-pixel; L1 is the distance between the center of the support pillar in the second pixel unit and the center of the third sub-pixel; L2 is the distance between the center of the support pillar in the second pixel unit and the center of the first sub-pixel; L3 is the distance between the center of the support pillar in the second pixel unit and the center of the second sub-pixel.

8. The display panel according to claim 7, characterized in that, The orthographic projections of the support columns on the plane of the second direction are at least partially offset.

9. The display panel according to claim 1 or 2, characterized in that, The display panel further includes an array substrate, a pixel defining layer located on one side of the array substrate, and the support pillars disposed on the side of the pixel defining layer away from the array substrate. The support column includes multiple sub-support columns stacked together. The sub-support columns are in the shape of a frustum or a pyramid, with a plane perpendicular to the axis of the support column as the cross-section. The cross-sectional area of ​​the multiple sub-support columns gradually decreases along the direction perpendicular to the display panel and away from the pixel limiting layer.

10. The display panel according to claim 9, characterized in that, Taking a plane perpendicular to the axis of the support column as a cross section, among the multiple sub-support columns of the same support column, the cross-sectional area of ​​the sub-support column that is farthest from the pixel limiting layer is 15-50% of the cross-sectional area of ​​the sub-support column that is closest to the pixel limiting layer.

11. The display panel according to claim 10, characterized in that, It also includes an encapsulation layer located on the side of the support pillar away from the array substrate, along a direction perpendicular to the array substrate, wherein the distance between the surface of the encapsulation layer closest to the array substrate and the array substrate is less than or equal to 3.5 micrometers; And / or, The height of the support column is less than or equal to 2.5 micrometers.

12. A display device, characterized in that, Includes the display panel as described in any one of claims 1-11.

Images