Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel includes a substrate, a first metal layer, a first electrode, and a pixel defining layer. The first metal layer is located on one side of the substrate; the first metal layer comprises a first metal pattern; the orthographic projection outer contour of the first electrode on the substrate is located outside the orthographic projection outer contour of the corresponding first pixel opening on the substrate; wherein the overlapping part of the orthographic projection of the first metal pattern on the substrate and the orthographic projection of the first pixel opening on the substrate is a first overlapping projection; a part of the first metal pattern corresponding to the first overlapping projection is an overlapping part; the overlapping part comprises a first side wall facing the A1 direction and a second side wall facing the A2 direction; the directions of the A1 direction and the A2 direction are opposite and parallel to each other; the ratio of the length component of the first side wall in the B1 direction to the length component of the second side wall in the B1 direction is larger than or equal to 0.3 and smaller than or equal to 3. And the B1 direction and the A1 direction intersect. According to the invention, the phenomenon of large color cast difference can be improved.

Description

Technical Field

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

[0002] With the advancement of technology, digital display devices such as smart phones and tablet computers have been widely used, among which the display screen is an indispensable interpersonal communication interface in these display devices. For example, organic light emitting diode (OLED) display panels have the advantages of self-luminescence, energy saving and consumption reduction, bendability, and good flexibility. In addition, the display device that realizes the display does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users and is widely used in terminal products such as smart phones and tablet computers. However, the current display panels have serious color deviation differences at large viewing angles, which affects the display effect. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel and a display device to improve the display effect.

[0004] In a first aspect, an embodiment of the present application provides a display panel, which includes a substrate, a first metal layer, a first electrode and a pixel defining layer.

[0005] The first metal layer is located on one side of the substrate; the first metal layer includes a first metal pattern; the first electrode is located on one side of the substrate; the pixel defining layer is located on a side of the first electrode away from the substrate; the pixel defining layer includes a first pixel opening corresponding to the first electrode; the orthographic projection outer contour of the first electrode on the substrate is located outside the orthographic projection outer contour of the corresponding first pixel opening on the substrate;

[0006] The portion where the orthographic projection of the first metal pattern on the substrate overlaps with the orthographic projection of the first pixel opening on the substrate is a first overlapping projection; the portion of the first metal pattern corresponding to the first overlapping projection is an overlapping portion; the overlapping portion includes a first side wall facing the A1 direction and a second side wall facing the A2 direction; the A1 direction and the A2 direction are opposite and parallel to each other;

[0007] A ratio of a length component of the first side wall in a B1 direction to a length component of the second side wall in a B1 direction is greater than or equal to 0.3 and less than or equal to 3; the B1 direction intersects the A1 direction.

[0008] The display panel provided in the embodiment of the present application makes the ratio of the length component in the B1 direction of the first side wall of the overlapping portion of the first metal pattern and the first pixel opening (the same as the overlapping portion described above) facing the A1 direction to the length component in the B1 direction of the second side wall of the overlapping portion of the first metal pattern and the first pixel opening facing the A2 direction be greater than or equal to 0.3 and less than or equal to 3. In this way, the difference in the length components in the B1 direction between the first side wall and the second side wall is not very large. When the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is not very large, thereby improving the display effect.

[0009] In a second aspect, based on the same inventive concept, an embodiment of the present application provides a display device, comprising the display panel in any embodiment of the first aspect.

[0010] The display device provided by the embodiment of the present application makes the ratio of the length component in the B1 direction of the first side wall of the overlapping portion of the first metal pattern and the first pixel opening (the same as the overlapping portion described above) facing the A1 direction to the length component in the B1 direction of the second side wall of the overlapping portion of the first metal pattern and the first pixel opening facing the A2 direction be greater than or equal to 0.3 and less than or equal to 3. In this way, the difference in the length components in the B1 direction between the first side wall and the second side wall is not very large. When the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is not very large, thereby improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 A schematic diagram of the observation of the human eye under a convex model provided in one embodiment of the present application.

[0013] Figure 2 A schematic diagram of the observation of the human eye under the concave model provided in one embodiment of the present application.

[0014] Figure 3 Schematic diagram of a cross-sectional structure of a display panel in a first orientation according to an embodiment of the present application.

[0015] Figure 4 FIG. 1 is a partial plan view of a first metal layer in an embodiment of the present application.

[0016] Figure 5 for Figure 4 A schematic projection diagram of the first metal layer and the first pixel opening is shown.

[0017] Figure 6 Schematic diagram of a cross-sectional structure of a display panel in a second orientation according to an embodiment of the present application.

[0018] Figure 7 for Figure 5 A schematic projection diagram of a first metal pattern and a first sub-pixel opening in the schematic projection diagram is shown.

[0019] Figure 8 for Figure 7 Schematic diagram of the local structure corresponding to the EE section.

[0020] Fig. 9 for Figure 5 A schematic projection diagram of the first metal pattern and the second sub-pixel opening in the projection schematic diagram is shown.

[0021] Fig.10 for Fig. 9 Schematic diagram of the local structure corresponding to the FF section.

[0022] Fig.11 for Figure 5 A schematic projection diagram of the first metal pattern and the third sub-pixel opening in the schematic projection diagram shown.

[0023] Fig.12 for Fig.11 Schematic diagram of the local structure corresponding to the GG section.

[0024] Fig.13 It is a schematic diagram of a partial cross-sectional structure of another display panel in an embodiment of the present application.

[0025] Fig.14 It is a schematic diagram of a partial cross-sectional structure of another display panel in an embodiment of the present application.

[0026] Fig.15 FIG. 4 is a schematic diagram of the structure of a display device in an embodiment of the present application.

[0027] Reference numerals:

[0028] 100, display device; 10, display panel; 11, substrate; 12, first metal layer; 121, first metal pattern; 121a, overlapping portion; 121a1, first overlapping portion; 121a2, second overlapping portion; 121a3, third overlapping portion; 121a-1, first side wall; 121a-1-1, first sub-wall; 121a-1-2, second sub-wall; 121a-1-3, third sub-wall; 121a-1-4, fourth sub-wall; 121a-1-5, seventh sub-wall; 121a- 1-6, the eighth sub-wall; 121a-1-7, the ninth sub-wall; 121a-2, the second side wall; 121a-2-1, the fifth sub-wall; 121a-2-2, the sixth sub-wall; 121a-2-3, the tenth sub-wall; 121a-2-4, the eleventh sub-wall; 121a-2-5, the twelfth sub-wall; 121a-3, the third side wall; 121a-3-1, the thirteenth sub-wall; 121a-3-2, the fourteenth sub-wall; 121a-3-3, the fifteenth sub-wall; 121a-3-4, the sixteenth sub-wall; 1 21a-4, fourth side wall; 121a-4-1, seventeenth sub-wall; 121a-4-2, eighteenth sub-wall; 121a-4-3, nineteenth sub-wall; 121a-4-4, twentieth sub-wall; 1211, first sub-pattern; 1212, second sub-pattern; 1213, third sub-pattern; 13, first electrode; 14, pixel defining layer; 14a, first pixel opening; 14a1, first sub-pixel opening; 14a2, second sub-pixel opening; 14a3, third sub-pixel opening; 15, first insulating layer; 16. Semiconductor layer; 17. Second insulating layer; 18. Second metal layer; 19. Third insulating layer; 110. Third metal layer; 111. Fourth insulating layer; 112. Fifth insulating layer; 113. Oxidized metal layer; 114. Sixth insulating layer; 115. Fourth metal layer; 116. Seventh insulating layer; 117. Fifth metal layer; 118. First planarization layer; 119. Support column; S1. First overlapping projection; S1a. First sub-overlapping projection; S1b. Second sub-overlapping projection; S1c. Third sub-overlapping projection. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there may be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly below or there may be intervening elements. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there may be intervening elements.

[0032] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0033] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0034] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0035] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0036] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0037] With the advancement of science and technology, digital display devices such as smart phones and tablet computers have been widely used, among which the display screen is an indispensable interpersonal communication interface in these display devices. Such as organic light emitting diode (OLED) display panel, has the advantages of self-luminescence, energy saving and consumption reduction, bendability, good flexibility, etc., and the display device that realizes display does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users and is widely used in terminal products such as smart phones and tablet computers. However, the current display panel has a serious color deviation difference under a large viewing angle, which affects the display effect. Specifically, taking the plane viewing angle of the display panel as an example, the display panel has four directions: upper, lower, left and right. When the observer observes from the upper side and the lower side respectively, the color deviation difference between the upper side and the lower side is relatively serious. When the observer observes from the left side and the right side respectively, the color deviation difference between the left side and the right side is also relatively serious. The above phenomenon seriously affects the display effect.

[0038] The inventor has found through research that reference Figure 1 As shown, in the convex model, that is, when the first electrode (anode) has a convexity. When the human eye observes at a wide viewing angle, the incident angle θ1 at the convexity is smaller than the incident angle θ0 at the horizontal interface, and the resonance condition changes, resulting in a color shift difference. Specifically, the chromaticity at the convexity is different from the chromaticity at the horizontal interface, and the brightness attenuation at the convexity is different from the brightness attenuation at the horizontal interface. Figure 2 As shown, under the concave model, that is, when the first electrode (anode) is concave. When the human eye observes at a wide viewing angle, the incident angle θ2 at the concave is smaller than the incident angle θ0 at the horizontal interface, and the resonance condition changes, resulting in a color shift difference. Specifically, the chromaticity at the concave is different from the chromaticity at the horizontal interface, and the brightness attenuation at the concave is different from the brightness attenuation at the horizontal interface. In summary, the inventors found that the step at the protrusion or concave is the main cause of the color shift.

[0039] In view of this, the embodiments of the present application provide a display panel and a display device, by making the ratio of the length component in the B1 direction of the first side wall of the portion where the first metal pattern overlaps with the first pixel opening and facing the A1 direction to the length component in the B1 direction of the second side wall of the portion where the first metal pattern overlaps with the first pixel opening and facing the A2 direction be greater than or equal to 0.3 and less than or equal to 3. In this way, the difference in the length components in the B1 direction between the first side wall and the second side wall is not very large. When the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is not very large, thereby improving the display effect.

[0040] First, refer to Figure 3 , Figure 4 and Figure 5As shown, an embodiment of the present application provides a display panel 10, which may be an organic light emitting diode display (Organic Light Emitting Diode, OLED) or a quantum dot electroluminescent display (Quantum Dot Light Emitting Diodes, QLED).

[0041] Specifically, the display panel 10 includes a substrate 11, a first metal layer 12, a first electrode 13 and a pixel defining layer 14. The first metal layer 12 is located on one side of the substrate 11, and the first metal layer 12 includes a first metal pattern 121. The first electrode 13 is located on one side of the substrate 11, and the number of the first electrodes 13 is multiple, and the multiple first electrodes 13 are arranged at intervals on the same side of the substrate 11. The pixel defining layer 14 is located on the side of the first electrode 13 away from the substrate 11, and the pixel defining layer 14 includes a first pixel opening 14a corresponding to the first electrode 13. Specifically, the pixel defining layer 14 includes a plurality of first pixel openings 14a, and the plurality of first pixel openings 14a can be arranged one by one with the plurality of first electrodes 13 described above, and each first pixel opening 14a exposes a portion of the surface of the corresponding first electrode 13. The outer contour of the orthographic projection of the first electrode 13 on the substrate 11 is located outside the outer contour of the orthographic projection of the corresponding first pixel opening 14a on the substrate 11.

[0042] Among them, the part where the orthographic projection of the first metal pattern 121 on the substrate 11 overlaps with the orthographic projection of the first pixel opening 14a on the substrate 11 is the first overlapping projection S1; the part of the first metal pattern 121 corresponding to the first overlapping projection S1 is the overlapping part 121a; the overlapping part 121a includes a first side wall 121a-1 facing the A1 direction, and a second side wall 121a-2 facing the A2 direction; the directions of the A1 direction and the A2 direction are opposite and parallel to each other.

[0043] The ratio of the length component of the first side wall 121a-1 in the B1 direction to the length component of the second side wall 121a-2 in the B1 direction is greater than or equal to 0.3 and less than or equal to 3. The B1 direction intersects the A1 direction. Figure 3 In the drawing, the B1 direction is perpendicular to the paper surface. In a preferred embodiment, the B1 direction is perpendicular to the A1 direction.

[0044] It can be understood that the ratio of the length component of the first side wall 121a-1 in the B1 direction to the length component of the second side wall 121a-2 in the B1 direction can be 0.3, 0.5, 0.8, 1.2, 1.5, 1.8, 2.1, 2.3, 2.5, 2.7, 2.9, 3 or between any two of the above values.

[0045] Reference Figure 3As shown, the first side wall 121a-1 of the overlapping portion 121a causes the first electrode 13 to generate a step toward the A1 direction, and the second side wall 121a-2 of the overlapping portion 121a causes the first electrode 13 to generate a step toward the A2 direction. In the embodiment of the present application, by making the ratio of the length component of the first side wall 121a-1 in the B1 direction to the length component of the second side wall 121a-2 in the B1 direction greater than or equal to 0.3 and less than or equal to 3, it is equivalent to making the difference in the length components of the first side wall 121a-1 and the second side wall 121a-2 in the B1 direction not very large, that is, making the difference in the length of the step of the first electrode 13 toward the A1 direction and the length of the step of the first electrode 13 toward the A2 direction not very large, so that when the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is not very large, thereby improving the display effect.

[0046] In one embodiment, a ratio of a length component of the first side wall 121 a - 1 in the B1 direction to a length component of the second side wall 121 a - 2 in the B1 direction is greater than or equal to 0.8 and less than or equal to 1.2.

[0047] In this way, it is equivalent to further reducing the difference in the length components of the first side wall 121a-1 and the second side wall 121a-2 in the B1 direction, thereby further reducing the difference in the length of the step of the first electrode 13 toward the A1 direction and the length of the step of the first electrode 13 toward the A2 direction. In this way, when the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference on the left and right sides is further reduced, thereby further improving the display effect.

[0048] In one embodiment, the length component of the first side wall 121a-1 in the B1 direction is equal to the length component of the second side wall 121a-2 in the B1 direction. Here, "equal" may be "absolutely equal" or "approximately equal". When the ratio of the length component of the first side wall 121a-1 in the B1 direction to the length component of the second side wall 121a-2 in the B1 direction is equal to 1, the length component of the first side wall 121a-1 in the B1 direction is absolutely equal to the length component of the second side wall 121a-2 in the B1 direction; when the ratio of the length component of the first side wall 121a-1 in the B1 direction to the length component of the second side wall 121a-2 in the B1 direction is greater than or equal to 0.95 and less than or equal to 1.05, the length component of the first side wall 121a-1 in the B1 direction is approximately equal to the length component of the second side wall 121a-2 in the B1 direction.

[0049] In this way, it is equivalent to making the length components of the first side wall 121a-1 and the second side wall 121a-2 in the B1 direction as consistent as possible, so that the length of the step of the first electrode 13 toward the A1 direction and the length of the step of the first electrode 13 toward the A2 direction are as consistent as possible. In this way, when the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is very small (almost non-existent), thereby further improving the display effect.

[0050] In one embodiment, if Figure 3 As shown, in the overlapping portion 121a and the first pixel opening 14a corresponding to the overlapping portion 121a, the distance between the first side wall 121a-1 of the overlapping portion 121a and the side edge of the first pixel opening 14a close to the first side wall 121a-1 is L1, and L1 is greater than 0μm. In the overlapping portion 121a and the first pixel opening 14a corresponding to the overlapping portion 121a, the distance between the second side wall 121a-2 of the overlapping portion 121a and the side edge of the first pixel opening 14a close to the second side wall 121a-2 is L2, and L2 is greater than 0μm. Exemplarily, L1 can be any value greater than 0μm, such as 0.1μm, 0.5μm, 0.9μm, 1.2μm, 1.5μm, 2μm, 3μm, etc. L2 can be any value greater than 0 μm, such as 0.1 μm, 0.5 μm, 0.9 μm, 1.2 μm, 1.5 μm, 2 μm, 3 μm, etc.

[0051] Thus, the human eye Figure 3 When observing from the left and right sides, the steps above the first side wall 121a-1 and the steps above the second side wall 121a-2 can be observed by the human eye, so that the steps on the left and the steps on the right observed by the human eye appear balanced, which is beneficial to reducing the color cast difference and improving the display effect.

[0052] In one embodiment, in the overlapping portion 121a and the first pixel opening 14a corresponding to the overlapping portion 121a, the distance between the first side wall 121a-1 of the overlapping portion 121a and the edge of the first pixel opening 14a close to the first side wall 121a-1 is greater than or equal to 1 μm, that is, L1 ≥ 1 μm. In the overlapping portion 121a and the first pixel opening 14a corresponding to the overlapping portion 121a, the distance between the second side wall 121a-2 of the overlapping portion 121a and the edge of the first pixel opening 14a close to the second side wall 121a-2 is greater than or equal to 1 μm, that is, L2 ≥ 1 μm.

[0053] Thus, the human eye Figure 3When observing from the left and right sides, the steps above the first side wall 121a-1 and the steps above the second side wall 121a-2 can be observed by the human eye, so that the steps on the left and right sides observed by the human eye are balanced, which is beneficial to reducing the color deviation difference and improving the display effect. In addition, it is also beneficial for the process personnel to control the process error and reduce the difficulty of production.

[0054] In one of the embodiments, 0 μm≤L1≤1 μm, 0 μm≤L2≤1 μm.

[0055] In one embodiment, referring to Figure 6 As shown, the overlapping portion 121a includes a third side wall 121a-3 facing the B1 direction, and a fourth side wall 121a-4 facing the B2 direction; the B1 direction and the B2 direction are opposite and parallel to each other. The ratio of the length component of the third side wall 121a-3 in the A1 direction to the length component of the fourth side wall 121a-4 in the A1 direction is greater than or equal to 0.3 and less than or equal to 3. Figure 6 In the diagram, A1 is perpendicular to the paper.

[0056] It can be understood that the ratio of the length component of the third side wall 121a-3 in the A1 direction to the length component of the fourth side wall 121a-4 in the A1 direction can be 0.3, 0.5, 0.8, 1.2, 1.5, 1.8, 2.1, 2.3, 2.5, 2.7, 2.9, 3 or between any two of the above values.

[0057] Reference Figure 6 As shown, the third side wall 121a-3 of the overlapping portion 121a causes the first electrode 13 to generate a step toward the B1 direction, and the fourth side wall 121a-4 of the overlapping portion 121a causes the first electrode 13 to generate a step toward the B2 direction. In the embodiment of the present application, by making the ratio of the length component of the third side wall 121a-3 in the A1 direction to the length component of the fourth side wall 121a-4 in the A1 direction greater than or equal to 0.3 and less than or equal to 3, it is equivalent to making the difference in the length components of the third side wall 121a-3 and the fourth side wall 121a-4 in the A1 direction not very large, that is, the difference in the length of the step generated by the first electrode 13 in the B1 direction and the length of the step generated by the first electrode 13 in the B2 direction is not very large. In this way, when the observer observes from the upper side (corresponding to the B1 direction) or from the lower side (corresponding to the B2 direction) at a large viewing angle, the color deviation difference between the upper and lower sides is not very large, thereby improving the display effect.

[0058] In one embodiment, the ratio of the length component of the third side wall 121a - 3 in the A1 direction to the length component of the fourth side wall 121a - 4 in the A1 direction is greater than or equal to 0.8 and less than or equal to 1.2.

[0059] In this way, it is equivalent to further reducing the difference in the length components of the third side wall 121a-3 and the fourth side wall 121a-4 in the direction A1, that is, the difference in the length of the step generated by the first electrode 13 toward the B1 direction and the length of the step generated by the first electrode 13 toward the B2 direction is further reduced. In this way, when the observer observes from the top (corresponding to the B1 direction) or from the bottom (corresponding to the B2 direction) at a wide viewing angle, the color deviation difference between the upper and lower sides is further reduced, thereby further improving the display effect.

[0060] In one embodiment, the length component of the third side wall 121a-3 in the A1 direction is equal to the length component of the fourth side wall 121a-4 in the A1 direction. Here, "equal" may be "absolutely equal" or "approximately equal". When the ratio of the length component of the third side wall 121a-3 in the A1 direction to the length component of the fourth side wall 121a-4 in the A1 direction is equal to 1, the length component of the third side wall 121a-3 in the A1 direction is absolutely equal to the length component of the fourth side wall 121a-4 in the A1 direction; when the ratio of the length component of the third side wall 121a-3 in the A1 direction to the length component of the fourth side wall 121a-4 in the A1 direction is greater than or equal to 0.95 and less than or equal to 1.05, the length component of the third side wall 121a-3 in the A1 direction is approximately equal to the length component of the fourth side wall 121a-4 in the A1 direction.

[0061] In this way, it is equivalent to making the length components of the third side wall 121a-3 and the fourth side wall 121a-4 in the direction A1 as consistent as possible, so that the length of the step generated by the first electrode 13 toward the B1 direction and the length of the step generated by the first electrode 13 toward the B2 direction are as consistent as possible. In this way, when the observer observes from the top (corresponding to the B1 direction) or from the bottom (corresponding to the B2 direction) at a wide viewing angle, the color deviation difference between the upper and lower sides is very small (almost non-existent), thereby further improving the display effect.

[0062] In one embodiment, if Figure 6As shown, in the overlapped portion 121a and the first pixel opening 14a corresponding to the overlapped portion 121a, the distance between the third side wall 121a-3 of the overlapped portion 121a and the side edge of the first pixel opening 14a close to the third side wall 121a-3 is L3, and L3 is greater than 0 μm. In the overlapped portion 121a and the first pixel opening 14a corresponding to the overlapped portion 121a, the distance between the fourth side wall 121a-4 of the overlapped portion 121a and the side edge of the first pixel opening 14a close to the fourth side wall 121a-4 is L4, and L4 is greater than 0 μm. Exemplarily, L3 can be any value greater than 0 μm, such as 0.1 μm, 0.5 μm, 0.9 μm, 1.2 μm, 1.5 μm, 2 μm, 3 μm, etc. L4 can be any value greater than 0 μm, such as 0.1 μm, 0.5 μm, 0.9 μm, 1.2 μm, 1.5 μm, 2 μm, 3 μm, etc.

[0063] Thus, the human eye Figure 6 When observed from the upper and lower sides, the steps above the third side wall 121a-3 and the steps above the fourth side wall 121a-4 can be observed by the human eye, so that the upper steps and the lower steps observed by the human eye are balanced, which is beneficial to reducing the color cast difference and improving the display effect.

[0064] In one embodiment, in the overlapping portion 121a and the first pixel opening 14a corresponding to the overlapping portion 121a, the distance between the third side wall 121a-3 of the overlapping portion 121a and the edge of the first pixel opening 14a close to the third side wall 121a-3 is greater than or equal to 1 μm, that is, L3 ≥ 1 μm. In the overlapping portion 121a and the first pixel opening 14a corresponding to the overlapping portion 121a, the distance between the fourth side wall 121a-4 of the overlapping portion 121a and the edge of the first pixel opening 14a close to the fourth side wall 121a-4 is greater than or equal to 1 μm, that is, L4 ≥ 1 μm.

[0065] Thus, the human eye Figure 6 When observing from the upper and lower sides, the steps above the third side wall 121a-3 and the steps above the fourth side wall 121a-4 can be observed by the human eye, so that the upper and lower steps observed by the human eye are balanced, which is beneficial to reducing the color deviation difference and improving the display effect. In addition, it is also beneficial for the process personnel to control the process error and reduce the difficulty of production.

[0066] In one of the embodiments, 0 μm≤L3≤1 μm, 0 μm≤L4≤1 μm.

[0067] In one embodiment, referring to Figure 4 and Figure 5As shown, the first metal pattern 121 includes a plurality of first sub-patterns 1211 and a plurality of second sub-patterns 1212 arranged alternately, that is, one second sub-pattern 1212 is provided between any two adjacent first sub-patterns 1211, and one first sub-pattern 1211 is provided between any two adjacent second sub-patterns 1212. The first sub-pattern 1211 and the second sub-pattern 1212 are respectively used to transmit different electrical signals. The orthographic projection of at least one of the first sub-pattern 1211 and the second sub-pattern 1212 on the substrate 11 overlaps with the orthographic projection of the first pixel opening 14a on the substrate 11.

[0068] In this way, the designer can achieve the purpose of improving the color deviation difference by optimizing the pattern morphology of the first metal pattern 121 (such as the first sub-pattern 1211 and the second sub-pattern 1212 ) without changing the pixel arrangement.

[0069] In one embodiment, the first sub-pattern 1211 transmits a power signal (eg, a VDD power signal), and the second sub-pattern 1212 transmits a data signal.

[0070] In one embodiment, the first metal pattern 121 further includes a plurality of third sub-patterns 1213 , which correspond one-to-one to the plurality of first electrodes 13 described above, and each first electrode 13 is electrically connected to the wiring of the pixel driving circuit through the corresponding third sub-pattern 1213 .

[0071] In one embodiment, referring to Figure 5 , Figure 7 and Figure 8 As shown, the first pixel opening 14a includes a first sub-pixel opening 14a1. Exemplarily, the R pixel is arranged corresponding to the first sub-pixel opening 14a1.

[0072] Specifically, the orthographic projection of the first sub-pixel opening 14a1 on the substrate 11 overlaps with the orthographic projection of the corresponding first sub-pattern 1211 on the substrate 11, and the overlapping portion is the first sub-overlapping projection S1a. Figure 5 For example, the large shadow figure (rectangle) indicated by the lead of Pixel-R is equivalent to the positive projection of the first sub-pixel opening 14a1, and the small shadow figure indicated by the lead of S1a is the first sub-overlapping projection S1a. The part of the first sub-pattern 1211 corresponding to the first sub-overlapping projection S1a is the first overlapping part 121a1, and the first side wall 121a-1 of the first overlapping part 121a1 includes a first sub-wall 121a-1-1 and a second sub-wall 121a-1-2 arranged at intervals, and the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction is equal to the length component of the second side wall 121a-2 of the first overlapping part 121a1 in the B1 direction.

[0073] Here, the side wall portion of the first overlapping portion 121a1 toward the A1 direction is discontinuous (i.e., intermittently arranged), and is respectively the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2. The embodiment of the present application optimizes the arrangement of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2, so that the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction is equal to the length component of the second side wall 121a-2 of the first overlapping portion 121a1 in the B1 direction, so that the total length of the step of the first electrode 13 toward the A1 direction and the length of the step of the first electrode 13 toward the A2 direction are as consistent as possible, so that when the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is almost non-existent, thereby further improving the display effect.

[0074] It should be noted that, here, "equal" can be "absolutely equal" or "approximately equal". When the ratio of the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction to the length component of the second side wall 121a-2 of the first overlapping portion 121a1 in the B1 direction is equal to 1, the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction is absolutely equal to the length component of the second side wall 121a-2 of the first overlapping portion 121a1 in the B1 direction; when the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction are equal to 1, the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction is absolutely equal to the length component of the second side wall 121a-2 of the first overlapping portion 121a1 in the B1 direction; When the ratio of the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction to the length component of the second side wall 121a-2 of the first overlapping portion 121a1 in the B1 direction is greater than or equal to 0.95 and less than or equal to 1.05, the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction is approximately equal to the length component of the second side wall 121a-2 of the first overlapping portion 121a1 in the B1 direction.

[0075] It can be understood that the ratio of the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction to the length component of the second side wall 121a-2 of the first overlapping portion 121a1 in the B1 direction can also be greater than or equal to 0.8 and less than or equal to 1.2. The ratio of the sum of the length components of the first sub-wall 121a-1-1 and the second sub-wall 121a-1-2 in the B1 direction to the length component of the second side wall 121a-2 of the first overlapping portion 121a1 in the B1 direction can also be greater than or equal to 0.3 and less than or equal to 3.

[0076] In one embodiment, the length component of the third side wall 121a-3 of the first overlapping portion 121a1 in the direction A1 is equal to the length component of the fourth side wall 121a-4 of the first overlapping portion 121a1 in the direction A1. One end of the third side wall 121a-3 is connected to the first sub-wall 121a-1-1, and the other end of the third side wall 121a-3 is connected to the second sub-wall 121a-1-2; the fourth side wall 121a-4 is located between the second sub-wall 121a-1-2 and the second side wall 121a-2.

[0077] In this way, the designer optimizes the pattern morphology of the first sub-pattern 1211 without changing the pixel arrangement, thereby making the color deviation difference between the left and right sides of the R pixel very small, and making the color deviation difference between the upper and lower sides of the R pixel very small, thereby achieving the purpose of improving the color deviation difference.

[0078] It can be understood that the ratio of the length component of the third side wall 121a-3 of the first overlapping portion 121a1 in the A1 direction to the length component of the fourth side wall 121a-4 of the first overlapping portion 121a1 in the A1 direction can also be greater than or equal to 0.8 and less than or equal to 1.2. The ratio of the length component of the third side wall 121a-3 of the first overlapping portion 121a1 in the A1 direction to the length component of the fourth side wall 121a-4 of the first overlapping portion 121a1 in the A1 direction can also be greater than or equal to 0.3 and less than or equal to 3.

[0079] In one embodiment, referring to Figure 5 , Fig. 9 and Fig.10 As shown, the first pixel opening 14a includes a second sub-pixel opening 14a2. Exemplarily, the G pixel is disposed corresponding to the second sub-pixel opening 14a2.

[0080] Specifically, the orthographic projection of the second sub-pixel opening 14a2 on the substrate 11 overlaps with the orthographic projection of the corresponding first sub-pattern 1211 on the substrate 11, and the overlapping portion is the second overlapping sub-projection S1b. Figure 5 For example, the large shadow figure (rectangle) indicated by the lead of Pixel-G is equivalent to the positive projection of the second sub-pixel opening 14a2, and the small shadow figure indicated by the lead of S1b is the second sub-overlapping projection S1b. The part of the first sub-pattern 1211 corresponding to the second sub-overlapping projection S1b is the second overlapping part 121a2, and the first side wall 121a-1 of the second overlapping part 121a2 includes the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 arranged at intervals, and the second side wall 121a-2 of the second overlapping part 121a2 includes the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 arranged at intervals.

[0081] The sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction is equal to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction.

[0082] Here, the side wall portions of the second overlapping portion 121a2 toward the A1 direction are discontinuous (i.e., intermittently arranged), which are the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 respectively, and the side wall portions of the second overlapping portion 121a2 toward the A2 direction are discontinuous (i.e., intermittently arranged), which are the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 respectively. In the embodiment of the present application, the third sub-wall 121a-1-3, the fourth sub-wall 121a-1-4, the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 are optimized so that the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction is equal to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction, so that the total length of the steps of the first electrode 13 toward the A1 direction and the total length of the steps of the first electrode 13 toward the A2 direction are as consistent as possible. In this way, when the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, there is almost no color deviation difference between the left and right sides, thereby further improving the display effect.

[0083] It should be noted that, here, "equal" can be "absolutely equal" or "approximately equal". When the ratio of the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction is equal to 1, the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction is absolutely equal to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction; when the ratio of the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction is equal to 1, the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction is absolutely equal to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction; When the ratio of the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction is greater than or equal to 0.95 and less than or equal to 1.05, the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction is approximately equal to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction.

[0084] It can be understood that the ratio of the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction can also be greater than or equal to 0.8 and less than or equal to 1.2. The ratio of the sum of the length components of the third sub-wall 121a-1-3 and the fourth sub-wall 121a-1-4 in the B1 direction to the sum of the length components of the fifth sub-wall 121a-2-1 and the sixth sub-wall 121a-2-2 in the B1 direction can also be greater than or equal to 0.3 and less than or equal to 3.

[0085] In one embodiment, the length component of the third side wall 121a-3 of the second overlapping portion 121a2 in the direction A1 is equal to the length component of the fourth side wall 121a-4 of the second overlapping portion 121a2 in the direction A1. One end of the third side wall 121a-3 is connected to the fifth sub-wall 121a-2-1, and the other end of the third side wall 121a-3 is connected to the sixth sub-wall 121a-2-2; one end of the fourth side wall 121a-4 is connected to the third sub-wall 121a-1-3, and the other end of the fourth side wall 121a-4 is connected to the fourth sub-wall 121a-1-4.

[0086] In this way, the designer optimizes the pattern morphology of the first sub-pattern 1211 without changing the pixel arrangement, thereby making the color deviation difference between the left and right sides of the G pixel very small, and making the color deviation difference between the upper and lower sides of the G pixel very small, thereby achieving the purpose of improving the color deviation difference.

[0087] It can be understood that the ratio of the length component of the third side wall 121a-3 of the second overlapping portion 121a2 in the A1 direction to the length component of the fourth side wall 121a-4 of the second overlapping portion 121a2 in the A1 direction can also be greater than or equal to 0.8 and less than or equal to 1.2. The ratio of the length component of the third side wall 121a-3 of the second overlapping portion 121a2 in the A1 direction to the length component of the fourth side wall 121a-4 of the second overlapping portion 121a2 in the A1 direction can also be greater than or equal to 0.3 and less than or equal to 3.

[0088] In one embodiment, referring to Figure 5 , Fig.11 and Fig.12 As shown, the first pixel opening 14a includes a third sub-pixel opening 14a3. Exemplarily, the B pixel is arranged corresponding to the third sub-pixel opening 14a3.

[0089] Specifically, the orthographic projection of the third sub-pixel opening 14a3 on the substrate 11 overlaps with the orthographic projections of the corresponding first sub-pattern 1211 and the corresponding two second sub-patterns 1212 on the substrate 11, and the overlapping portion is the third sub-overlapping projection S1c. Figure 5For example, the large shadow figure (rectangle) pointed to by the lead of Pixel-B is equivalent to the positive projection of the third sub-pixel opening 14a3, and the small shadow figure pointed to by the lead of S1c is the third sub-overlapping projection S1c. The portion of the first sub-pattern 1211 and the portion of the second sub-pattern 1212 corresponding to the third sub-overlapping projection S1c are the third overlapping portion 121a3, and the first side wall 121a-1 of the third overlapping portion 121a3 includes the seventh sub-wall 121a-1-5 located on the first sub-pattern 1211, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 located on one second sub-pattern 1212, and the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 are arranged at intervals; the second side wall 121a-2 of the third overlapping portion 121a3 includes the tenth sub-wall 121a-2-3 located on the first sub-pattern 1211, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 located on another second sub-pattern 1212, and the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 are arranged at intervals.

[0090] The sum of the length components of the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction is equal to the sum of the length components of the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 in the B1 direction.

[0091] Here, the side wall portions of the third overlapping portion 121a3 toward the A1 direction are discontinuous (i.e., intermittently arranged), which are the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 respectively, and the side wall portions of the third overlapping portion 121a3 toward the A2 direction are discontinuous (i.e., intermittently arranged), which are the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 respectively. In the embodiment of the present application, the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6, the ninth sub-wall 121a-1-7, the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 are optimized so that the sum of the length components of the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction is equal to the sum of the length components of the tenth sub-wall 121a- 2-3. The sum of the length components of the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 in the B1 direction is equal, so that the total length of the steps of the first electrode 13 toward the A1 direction and the total length of the steps of the first electrode 13 toward the A2 direction are as consistent as possible. In this way, when the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is almost non-existent, thereby further improving the display effect.

[0092] It should be noted that, here, "equal" can be "absolutely equal" or "approximately equal". When the ratio of the sum of the length components of the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction to the sum of the length components of the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 in the B1 direction is equal to 1, the sum of the length components of the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction is absolutely equal to the sum of the length components of the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 in the B1 direction; when the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction is absolutely equal to the sum of the length components of the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 in the B1 direction; When the ratio of the sum of the length components of the eighth sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction is greater than or equal to 0.95 and less than or equal to 1.05, the sum of the length components of the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction is approximately equal to the sum of the length components of the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 in the B1 direction.

[0093] It can be understood that the ratio of the sum of the length components of the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction to the sum of the length components of the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 in the B1 direction can also be greater than or equal to 0.8 and less than or equal to 1.2. The ratio of the sum of the length components of the seventh sub-wall 121a-1-5, the eighth sub-wall 121a-1-6 and the ninth sub-wall 121a-1-7 in the B1 direction to the sum of the length components of the tenth sub-wall 121a-2-3, the eleventh sub-wall 121a-2-4 and the twelfth sub-wall 121a-2-5 in the B1 direction can also be greater than or equal to 0.3 and less than or equal to 3.

[0094] In one embodiment, the third side wall 121a-3 of the third overlapping portion 121a3 includes a thirteenth sub-wall 121a-3-1 and a fourteenth sub-wall 121a-3-2 located on one second sub-pattern 1212, and a fifteenth sub-wall 121a-3-3 and a sixteenth sub-wall 121a-3-4 located on another second sub-pattern 1212, the thirteenth sub-wall 121a-3-1 and the fourteenth sub-wall 121a-3-2 are arranged at intervals, and the fifteenth sub-wall 121a-3-3 and the sixteenth sub-wall 121a-3-4 are arranged at intervals. The sub-walls 121a-3-4 are arranged at intervals; the fourth side wall 121a-4 of the third overlapping portion 121a3 includes a seventeenth sub-wall 121a-4-1 located on one second sub-pattern 1212, an eighteenth sub-wall 121a-4-2 located on another second sub-pattern 1212, and a nineteenth sub-wall 121a-4-3 and a twenty-third sub-wall 121a-4-4 located on the first sub-pattern 1211, and the nineteenth sub-wall 121a-4-3 and the twenty-third sub-wall 121a-4-4 are arranged at intervals;

[0095] The sum of the length components of the thirteenth sub-wall 121a-3-1, the fourteenth sub-wall 121a-3-2, the fifteenth sub-wall 121a-3-3 and the sixteenth sub-wall 121a-3-4 in the A1 direction is equal to the sum of the length components of the seventeenth sub-wall 121a-4-1, the eighteenth sub-wall 121a-4-2, the nineteenth sub-wall 121a-4-3 and the twentieth sub-wall 121a-4-4 in the A1 direction.

[0096] Here, the side wall portions of the third overlapping portion 121a3 toward the B1 direction are discontinuous (i.e., intermittently arranged), which are the thirteenth sub-wall 121a-3-1, the fourteenth sub-wall 121a-3-2, the fifteenth sub-wall 121a-3-3 and the sixteenth sub-wall 121a-3-4 respectively, and the side wall portions of the third overlapping portion 121a3 toward the B2 direction are discontinuous (i.e., intermittently arranged), which are the seventeenth sub-wall 121a-4-1, the eighteenth sub-wall 121a-4-2, the nineteenth sub-wall 121a-4-3 and the twentieth sub-wall 121a-4-4 respectively. In the embodiment of the present application, the above-mentioned sub-walls are optimized so that the sum of the length components of the thirteenth sub-wall 121a-3-1, the fourteenth sub-wall 121a-3-2, the fifteenth sub-wall 121a-3-3 and the sixteenth sub-wall 121a-3-4 in the A1 direction is equal to the sum of the length components of the seventeenth sub-wall 121a-4-1, the eighteenth sub-wall 121a-4-2, the nineteenth sub-wall 121a-4-3 and the twentieth sub-wall 121a-4-4 in the A1 direction, so that the total length of the steps of the first electrode 13 toward the B1 direction and the total length of the steps of the first electrode 13 toward the B2 direction are as consistent as possible. In this way, when the observer observes from the top (corresponding to the B1 direction) or from the bottom (corresponding to the B2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is almost non-existent, thereby further improving the display effect.

[0097] It should be noted that, here, "equal" can be "absolutely equal" or "approximately equal". When the ratio of the sum of the length components of the thirteenth sub-wall 121a-3-1, the fourteenth sub-wall 121a-3-2, the fifteenth sub-wall 121a-3-3 and the sixteenth sub-wall 121a-3-4 in the A1 direction to the sum of the length components of the seventeenth sub-wall 121a-4-1, the eighteenth sub-wall 121a-4-2, the nineteenth sub-wall 121a-4-3 and the twentieth sub-wall 121a-4-4 in the A1 direction is equal to 1, The sum of the length components of the thirteenth sub-wall 121a-3-1, the fourteenth sub-wall 121a-3-2, the fifteenth sub-wall 121a-3-3 and the sixteenth sub-wall 121a-3-4 in the A1 direction is absolutely equal to the sum of the length components of the seventeenth sub-wall 121a-4-1, the eighteenth sub-wall 121a-4-2, the nineteenth sub-wall 121a-4-3 and the twentieth sub-wall 121a-4-4 in the A1 direction; when the thirteenth sub-wall 121a-3-1, the fourteenth sub-wall 121a-3-2, the fifteenth sub-wall 121a-3-3 and the sixteenth sub-wall 121a-3-4 in the A1 direction The ratio of the sum of the length components of the 14th sub-wall 121a-3-2, the 15th sub-wall 121a-3-3 and the 16th sub-wall 121a-3-4 in the A1 direction to the sum of the length components of the 17th sub-wall 121a-4-1, the 18th sub-wall 121a-4-2, the 19th sub-wall 121a-4-3 and the 20th sub-wall 121a-4-4 in the A1 direction is greater than or equal to 0.95 and less than or equal to When 1.05, the sum of the length components of the thirteenth sub-wall 121a-3-1, the fourteenth sub-wall 121a-3-2, the fifteenth sub-wall 121a-3-3 and the sixteenth sub-wall 121a-3-4 in the A1 direction is approximately equal to the sum of the length components of the seventeenth sub-wall 121a-4-1, the eighteenth sub-wall 121a-4-2, the nineteenth sub-wall 121a-4-3 and the twentieth sub-wall 121a-4-4 in the A1 direction.

[0098] In one embodiment, the seventh sub-wall 121a-1-5 is connected to the nineteenth sub-wall 121a-4-3, the eighth sub-wall 121a-1-6 is connected to the thirteenth sub-wall 121a-3-1, one end of the ninth sub-wall 121a-1-7 is connected to the fourteenth sub-wall 121a-3-2, the other end of the ninth sub-wall 121a-1-7 is connected to the seventeenth sub-wall 121a-4-1, the tenth sub-wall 121a-2-3 is connected to the twentieth sub-wall 121a-4-4, the eleventh sub-wall 121a-2-4 is connected to the fifteenth sub-wall 121a-3-3, one end of the twelfth sub-wall 121a-2-5 is connected to the sixteenth sub-wall 121a-3-4, and the other end of the twelfth sub-wall 121a-2-5 is connected to the eighteenth sub-wall 121a-4-2.

[0099] In this way, the designer optimizes the pattern morphology of the first sub-pattern 1211 and the second sub-pattern 1212 without changing the pixel arrangement, so that the color deviation difference between the left and right sides of the B pixel is very small, and the color deviation difference between the upper and lower sides of the B pixel is very small, thereby achieving the purpose of improving the color deviation difference.

[0100] In one embodiment, the shape of the first overlapping projection S1 is an asymmetric figure, that is, the overlapping portion 121a is an asymmetric structure. In this way, the color shift difference under a wide viewing angle can be improved when the overlapping portion 121a is an asymmetric structure.

[0101] In one embodiment, the display panel 10 further includes a first insulating layer 15, which is disposed between the first metal layer 12 and the first electrode 13. The first metal layer 12 is in contact with the first insulating layer 15 on one side thereof close to the first insulating layer 15, and the first electrode 13 is in contact with the first insulating layer 15 on one side thereof close to the first insulating layer 15.

[0102] The inventors have found through research that the metal pattern located below the first electrode 13 and closest to the first electrode 13 has a greater impact on the color shift. The embodiment of the present application is equivalent to optimizing the pattern morphology of the metal layer closest to the first electrode 13, thereby maximally improving the color shift difference.

[0103] In one embodiment, the first insulating layer 15 is a planarization film layer. It should be noted that even if the first insulating layer 15 is a planarization film layer, the first electrode 13 located above the first metal pattern 121 will still have a step.

[0104] It can be understood that the sub-pixels in the display panel 10 are electrically connected to the pixel driving circuit, and the pixel driving circuit drives the sub-pixels to emit light.

[0105] In one embodiment, if Fig.13 As shown, the display panel 10 further includes a semiconductor layer 16, a second insulating layer 17, a second metal layer 18, a third insulating layer 19, a third metal layer 110, a fourth insulating layer 111, a fourth metal layer 115, and a first planarization layer 118, which are sequentially stacked on the substrate 11. The first metal layer 12 is disposed on a side of the first planarization layer 118 away from the substrate 11.

[0106] In one embodiment, if Fig.14As shown, the display panel 10 further includes a semiconductor layer 16, a second insulating layer 17, a second metal layer 18, a third insulating layer 19, a third metal layer 110, a fourth insulating layer 111, a fifth insulating layer 112, an oxide metal layer 113, a sixth insulating layer 114, a fourth metal layer 115, a seventh insulating layer 116, a fifth metal layer 117 and a first planarization layer 118 which are sequentially stacked on the substrate 11. The first metal layer 12 is disposed on a side of the first planarization layer 118 away from the substrate 11. It can be understood that the substrate 11 can be a stacked structure consisting of multiple film layers.

[0107] In one embodiment, the display panel 10 further includes a support column 119 . The support column 119 is disposed on a side of the pixel defining layer 14 away from the substrate 11 . The support column 119 is used to support the mask.

[0108] Second, as Fig.15 As shown, based on the same inventive concept, an embodiment of the present application provides a display device 100, including the display panel 10 in any embodiment of the first aspect.

[0109] The display device 100 can be a laptop computer, a mobile phone, a wireless device, a personal data assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a television monitor, a flat panel display, a computer monitor, an automobile display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photograph, an electronic billboard or sign, a projector, packaging, etc.

[0110] The display device 100 provided in the embodiment of the present application makes the ratio of the length component in the B1 direction of the first side wall 121a-1 of the overlapping portion of the first metal pattern 121 and the first pixel opening 14a (the same as the overlapping portion 121a described above) facing the A1 direction to the length component in the B1 direction of the second side wall 121a-2 of the overlapping portion of the first metal pattern 121 and the first pixel opening 14a facing the A2 direction be greater than or equal to 0.3 and less than or equal to 3. In this way, the difference in the length components in the B1 direction between the first side wall 121a-1 and the second side wall 121a-2 is not very large. When the observer observes from the right side (corresponding to the A1 direction) or from the left side (corresponding to the A2 direction) at a wide viewing angle, the color deviation difference between the left and right sides is not very large, thereby improving the display effect.

[0111] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: substrate; A first metal layer, located on one side of the substrate; the first metal layer includes a first metal pattern; A first electrode, located on one side of the substrate; A pixel defining layer is located on a side of the first electrode away from the substrate; the pixel defining layer comprises a first pixel opening arranged corresponding to the first electrode; The orthographic projection outer contour of the first electrode on the substrate is located outside the orthographic projection outer contour of the corresponding first pixel opening on the substrate; The portion where the orthographic projection of the first metal pattern on the substrate overlaps with the orthographic projection of the first pixel opening on the substrate is a first overlapping projection; the portion of the first metal pattern corresponding to the first overlapping projection is an overlapping portion; the overlapping portion includes a first side wall facing the A1 direction and a second side wall facing the A2 direction; the A1 direction and the A2 direction are opposite and parallel to each other; A ratio of a length component of the first side wall in a B1 direction to a length component of the second side wall in a B1 direction is greater than or equal to 0.3 and less than or equal to 3; the B1 direction intersects the A1 direction.

2. The display panel according to claim 1, characterized in that: A ratio of a length component of the first side wall in the B1 direction to a length component of the second side wall in the B1 direction is greater than or equal to 0.8 and less than or equal to 1.

2.

3. The display panel according to claim 2, characterized in that: A length component of the first side wall in the B1 direction is equal to a length component of the second side wall in the B1 direction.

4. The display panel according to claim 1, characterized in that: In the overlapping portion and the first pixel opening corresponding to the overlapping portion, The distance between the first side wall of the overlapping portion and an edge of the first pixel opening close to the first side wall is greater than 0 μm; and / or the distance between the second side wall of the overlapping portion and an edge of the first pixel opening close to the second side wall is greater than 0 μm.

5. The display panel according to claim 4, characterized in that: In the overlapping portion and the first pixel opening corresponding to the overlapping portion, The distance between the first side wall of the overlapping portion and an edge of the first pixel opening close to the first side wall is greater than or equal to 1 μm; and / or the distance between the second side wall of the overlapping portion and an edge of the first pixel opening close to the second side wall is greater than or equal to 1 μm.

6. The display panel according to claim 1, characterized in that: The overlapping portion includes a third side wall facing the B1 direction and a fourth side wall facing the B2 direction; the B1 direction and the B2 direction are opposite and parallel to each other; A ratio of a length component of the third side wall in the A1 direction to a length component of the fourth side wall in the A1 direction is greater than or equal to 0.3 and less than or equal to 3.

7. The display panel according to claim 6, characterized in that: A ratio of a length component of the third side wall in the A1 direction to a length component of the fourth side wall in the A1 direction is greater than or equal to 0.8 and less than or equal to 1.

2.

8. The display panel according to claim 7, characterized in that: A length component of the third side wall in the direction A1 is equal to a length component of the fourth side wall in the direction A1.

9. The display panel according to claim 6, characterized in that: In the overlapping portion and the first pixel opening corresponding to the overlapping portion, The distance between the third side wall of the overlapping portion and an edge of the first pixel opening close to the third side wall is greater than 0 μm; and / or the distance between the fourth side wall of the overlapping portion and an edge of the first pixel opening close to the fourth side wall is greater than 0 μm.

10. The display panel according to claim 9, characterized in that: In the overlapping portion and the first pixel opening corresponding to the overlapping portion, The distance between the third side wall of the overlapping portion and an edge of the first pixel opening close to the third side wall is greater than or equal to 1 μm; and / or the distance between the fourth side wall of the overlapping portion and an edge of the first pixel opening close to the fourth side wall is greater than or equal to 1 μm.

11. The display panel according to claim 6, characterized in that: The first metal pattern includes a plurality of first sub-patterns and a plurality of second sub-patterns arranged alternately; the first sub-patterns and the second sub-patterns are respectively used to transmit different electrical signals; An orthographic projection of at least one of the first sub-pattern and the second sub-pattern on the substrate overlaps with an orthographic projection of the first pixel opening on the substrate.

12. The display panel according to claim 11, characterized in that: The first pixel opening includes a first sub-pixel opening; The orthographic projection of the first sub-pixel opening on the substrate overlaps with the orthographic projection of the corresponding first sub-pattern on the substrate, and the overlapping part is the first sub-overlapping projection; the part of the first sub-pattern corresponding to the first sub-overlapping projection is the first overlapping part, and the first side wall of the first overlapping part includes a first sub-wall and a second sub-wall spaced apart, and the sum of the length components of the first sub-wall and the second sub-wall in the B1 direction is equal to the length component of the second side wall of the first overlapping part in the B1 direction.

13. The display panel according to claim 12, characterized in that: A length component of the third side wall of the first overlapping portion in the direction A1 is equal to a length component of the fourth side wall of the first overlapping portion in the direction A1; One end of the third side wall is connected to the first sub-wall, and the other end of the third side wall is connected to the second sub-wall; the fourth side wall is located between the second sub-wall and the second side wall.

14. The display panel according to claim 11, characterized in that: The first pixel opening includes a second sub-pixel opening; The orthographic projection of the second sub-pixel opening on the substrate overlaps with the orthographic projection of the corresponding first sub-pattern on the substrate, and the overlapping portion is a second sub-overlapping projection; the portion of the first sub-pattern corresponding to the second sub-overlapping projection is a second overlapping portion, the first side wall of the second overlapping portion includes a third sub-wall and a fourth sub-wall that are spaced apart, and the second side wall of the second overlapping portion includes a fifth sub-wall and a sixth sub-wall that are spaced apart; The sum of the length components of the third sub-wall and the fourth sub-wall in the B1 direction is equal to the sum of the length components of the fifth sub-wall and the sixth sub-wall in the B1 direction.

15. The display panel according to claim 14, characterized in that: A length component of the third side wall of the second overlapping portion in the direction A1 is equal to a length component of the fourth side wall of the second overlapping portion in the direction A1; One end of the third side wall is connected to the fifth sub-wall, and the other end of the third side wall is connected to the sixth sub-wall; one end of the fourth side wall is connected to the third sub-wall, and the other end of the fourth side wall is connected to the fourth sub-wall.

16. The display panel according to claim 11, characterized in that: The first pixel opening includes a third sub-pixel opening; The orthographic projection of the third sub-pixel opening on the substrate overlaps with the orthographic projections of a corresponding first sub-pattern and two corresponding second sub-patterns on the substrate, and the overlapping portion is a third sub-overlapping projection; The part of the first sub-pattern and the part of the second sub-pattern corresponding to the third sub-overlapping projection are the third overlapping part, the first side wall of the third overlapping part includes the seventh sub-wall located on the first sub-pattern, the eighth sub-wall and the ninth sub-wall located on one of the second sub-patterns, and the eighth sub-wall and the ninth sub-wall are arranged at intervals; the second side wall of the third overlapping part includes the tenth sub-wall located on the first sub-pattern, the eleventh sub-wall and the twelfth sub-wall located on another of the second sub-patterns, and the eleventh sub-wall and the twelfth sub-wall are arranged at intervals; The sum of the length components of the seventh sub-wall, the eighth sub-wall and the ninth sub-wall in the B1 direction is equal to the sum of the length components of the tenth sub-wall, the eleventh sub-wall and the twelfth sub-wall in the B1 direction.

17. The display panel according to claim 16, characterized in that: The third side wall of the third overlapping portion includes a thirteenth sub-wall and a fourteenth sub-wall located on one of the second sub-patterns, and a fifteenth sub-wall and a sixteenth sub-wall located on another of the second sub-patterns, the thirteenth sub-wall and the fourteenth sub-wall are arranged at intervals, and the fifteenth sub-wall and the sixteenth sub-wall are arranged at intervals; The fourth side wall of the third overlapping portion includes a seventeenth sub-wall located on one of the second sub-patterns, an eighteenth sub-wall located on another of the second sub-patterns, a nineteenth sub-wall located on the first sub-pattern, and a twenty-third sub-wall, wherein the nineteenth sub-wall and the twenty-third sub-wall are arranged at intervals; The sum of the length components of the thirteenth sub-wall, the fourteenth sub-wall, the fifteenth sub-wall and the sixteenth sub-wall in the A1 direction is equal to the sum of the length components of the seventeenth sub-wall, the eighteenth sub-wall, the nineteenth sub-wall and the twentieth sub-wall in the A1 direction.

18. The display panel according to claim 17, characterized in that: The seventh sub-wall is connected to the nineteenth sub-wall, the eighth sub-wall is connected to the thirteenth sub-wall, one end of the ninth sub-wall is connected to the fourteenth sub-wall, the other end of the ninth sub-wall is connected to the seventeenth sub-wall, the tenth sub-wall is connected to the twentieth sub-wall, the eleventh sub-wall is connected to the fifteenth sub-wall, one end of the twelfth sub-wall is connected to the sixteenth sub-wall, and the other end of the twelfth sub-wall is connected to the eighteenth sub-wall.

19. The display panel according to claim 11, characterized in that: The first sub-pattern transmits a power signal, and the second sub-pattern transmits a data signal.

20. The display panel according to claim 1, characterized in that: The shape of the first overlapping projection is an asymmetric figure.

21. The display panel according to claim 1, characterized in that: The display panel further includes a first insulating layer, wherein the first insulating layer is disposed between the first metal layer and the first electrode; A side of the first metal layer close to the first insulating layer contacts the first insulating layer, and a side of the first electrode close to the first insulating layer contacts the first insulating layer.

22. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-21.

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