Display panel and display device

Abstract

The embodiment of the present invention discloses a display panel and a display device, wherein the display panel includes a first display area and at least one second display area; the plane where the first display area is located intersects with the extension direction of the second display area; the display panel includes an array substrate, a plurality of light-emitting elements and a plurality of baffles; the light-emitting elements include a first light-emitting element and a second light-emitting element, the first light-emitting element is located in the first display area, and the second light-emitting element is located in the second display area; the baffles located in the second display area include a first baffle and a second baffle, the first baffle is located on a side of the second light-emitting element away from the first display area, and the second baffle is located on a side of the second light-emitting element close to the first display area; the angle between the second angle light formed by the partial light emitted by the second light-emitting element after being reflected by the first baffle and the first angle light emitted from the first display area is less than or equal to 10°. The embodiment of the present invention can reduce the brightness difference between the first display area and the second display area, and improve the display uniformity.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With the development of display technology, users have higher and higher demands on display panels. In order to improve the user's visual experience, curved display panels have gradually become an important development direction in the field of display technology. In existing fixed curved display panels, the light-emitting elements located in the edge area are tilted along the curved surface, and their light emission direction will also deviate from the positive light emission surface, resulting in the phenomenon of dark brightness in the edge area when observed at a normal viewing angle, affecting the uniformity of the display. Summary of the invention

[0003] Embodiments of the present invention provide a display panel and a display device to solve the problem of uneven brightness when viewed at a normal viewing angle due to the tilted light emission direction of light emitting elements in a part of the existing fixed-bend display panel.

[0004] An embodiment of the present invention provides a display panel, the display panel comprising a first display area and at least one second display area; a plane where the first display area is located intersects with an extension direction of the second display area;

[0005] The display panel comprises:

[0006] An array substrate;

[0007] A plurality of light-emitting elements and a plurality of retaining walls are located on the same side of the array substrate; the light-emitting elements include a first light-emitting element and a second light-emitting element, the first light-emitting element is located in the first display area, and the second light-emitting element is located in the second display area; the retaining walls are located between adjacent light-emitting elements;

[0008] Among them, the blocking wall located in the second display area includes a first blocking wall and a second blocking wall, and the first blocking wall and the second blocking wall are respectively located on both sides of the second light-emitting element; the first blocking wall is located on the side of the second light-emitting element away from the first display area, and the second blocking wall is located on the side of the second light-emitting element close to the first display area; part of the light emitted by the second light-emitting element is reflected by the first blocking wall to form a second angle light, and the angle between the second angle light and the first angle light emitted from the first display area is less than or equal to 10°.

[0009] Based on the same inventive concept, an embodiment of the present invention further provides a display device, which includes the display panel as described above.

[0010] A display panel provided by an embodiment of the present invention comprises a first display area and a second display area deviating from a plane where the first display area is located. Since the second light-emitting element located in the second display area is tilted itself, the overall light emission direction of the second light-emitting element will be close to the direction of the normal viewing angle, and only the lateral light emission on the side away from the first display area will deviate. By arranging a part of the light emitted by the second light-emitting element in the second display area, it will not be reflected by the second baffle wall located on the side of the second light-emitting element close to the first display area to cause deviation from the normal viewing angle, but will only be reflected by the first baffle wall located on the side of the second light-emitting element away from the first display area, so that the lateral light deviating from the normal viewing angle is reflected and emitted from the direction close to the normal viewing angle, thereby emitting more light in the direction of the normal viewing angle. In this way, the front light emission ratio of the second display area can be increased, the brightness of the second display area can be enhanced, the brightness difference between the first display area and the second display area can be reduced, and the display uniformity of the display panel can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, although the drawings described below are some specific embodiments of the present invention, for those skilled in the art, the basic concepts of the device structure, driving method and manufacturing method disclosed and suggested by the various embodiments of the present invention can be expanded and extended to other structures and drawings, and there is no doubt that these should be within the scope of the claims of the present invention.

[0012] Figure 1 It is a structural schematic diagram of a display panel provided by the prior art;

[0013] Figure 2 is a schematic top view of a display panel provided by an embodiment of the present invention;

[0014] Figure 3 yes Figure 2 A schematic cross-sectional view along section line AA';

[0015] Figure 4 is a schematic top view of another display panel provided by an embodiment of the present invention;

[0016] Figure 5 yes Figure 4 A schematic cross-sectional view along section line BB';

[0017] Figure 6 yes Figure 2 Another cross-sectional schematic diagram along the section line AA';

[0018] Figure 7 yes Figure 2 Another cross-sectional schematic diagram along section line AA';

[0019] Figure 8 yes Figure 2 Another cross-sectional schematic diagram along section line AA';

[0020] Fig. 9 yes Figure 2 Another cross-sectional schematic diagram along section line AA';

[0021] Fig.10 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described through implementation methods with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the basic concepts disclosed and suggested by the embodiments of the present invention, all other embodiments obtained by those skilled in the art are within the scope of protection of the present invention.

[0023] Figure 1 is a schematic diagram of a structure of a display panel provided by the prior art. For example, Figure 1 As shown, the display panel in the prior art includes a first display area AA1 and a second display area AA2, the first display area AA1 is a plane display area of ​​the display panel, the second display area AA2 is a curved display area of ​​the display panel, and the display panel includes a plurality of light-emitting elements 01 and a plurality of baffles 02, wherein the baffles 02 are arranged between adjacent light-emitting elements 01. In the first display area AA1, the baffles 02 located on the left and right sides of the light-emitting element 01 can reflect the light emitted laterally from the light-emitting element 01, so as to emit the light emitted by the light-emitting element 01 from the front of the display panel, thereby improving the front light emission of the display panel. However, in the second display area AA2, since the light-emitting element 01 and the baffles 02 are both inclined as the display panel is bent, the light emitted laterally from the light-emitting element 01 is reflected by the baffles 02 inclined on both sides, and the light will be concentrated and emitted in an oblique direction, and its light emission direction deviates from the positive light emission surface, resulting in the phenomenon that the brightness of the second display area AA2 is dim when observed from a positive viewing angle, which affects the uniformity of the display.

[0024] To solve the above problems, an embodiment of the present invention provides a display panel, which includes a first display area and at least one second display area; the plane where the first display area is located intersects with the extension direction of the second display area; the display panel includes: an array substrate; a plurality of light-emitting elements and a plurality of blocking walls located on the same side of the array substrate; the light-emitting elements include a first light-emitting element and a second light-emitting element, the first light-emitting element is located in the first display area, and the second light-emitting element is located in the second display area; the blocking wall is located between adjacent light-emitting elements; wherein the blocking wall located in the second display area includes a first blocking wall and a second blocking wall, the first blocking wall and the second blocking wall are respectively located on both sides of the second light-emitting element; the first blocking wall is located on the side of the second light-emitting element away from the first display area, and the second blocking wall is located on the side of the second light-emitting element close to the first display area; part of the light emitted by the second light-emitting element is reflected by the first blocking wall to form a second angle light, and the angle between the second angle light and the first angle light emitted from the first display area is less than or equal to 10°.

[0025] A display panel provided by an embodiment of the present invention comprises a first display area and a second display area deviating from a plane where the first display area is located. Since the second light-emitting element located in the second display area is tilted itself, the overall light emission direction of the second light-emitting element will be close to the direction of the normal viewing angle, and only the lateral light emission on the side away from the first display area will deviate. By arranging a part of the light emitted by the second light-emitting element in the second display area, it will not be reflected by the second baffle wall located on the side of the second light-emitting element close to the first display area to cause deviation from the normal viewing angle, but will only be reflected by the first baffle wall located on the side of the second light-emitting element away from the first display area, so that the lateral light deviating from the normal viewing angle is reflected and emitted from the direction close to the normal viewing angle, thereby emitting more light in the direction of the normal viewing angle. In this way, the front light emission ratio of the second display area can be increased, the brightness of the second display area can be enhanced, the brightness difference between the first display area and the second display area can be reduced, and the display uniformity of the display panel can be improved.

[0026] The above is the core idea of ​​the present invention. The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] Figure 2 is a schematic top view of a display panel provided by an embodiment of the present invention, Figure 3 yes Figure 2 A schematic cross-sectional view along the section line AA', see Figure 2 and Figure 3The display panel 10 provided by the embodiment of the present invention includes a first display area AA1 and at least one second display area AA2; the plane where the first display area AA1 is located intersects with the extension direction of the second display area AA2; the display panel 10 includes: an array substrate 100; a plurality of light-emitting elements 200 and a plurality of retaining walls 300 located on the same side of the array substrate 100; the light-emitting elements 200 include a first light-emitting element 210 and a second light-emitting element 220, the first light-emitting element 210 is located in the first display area AA1, and the second light-emitting element 220 is located in the second display area AA2; the retaining wall 300 is located between adjacent light-emitting elements 200; wherein The retaining wall 300 located in the second display area AA2 includes a first retaining wall 310 and a second retaining wall 320, and the first retaining wall 310 and the second retaining wall 320 are respectively located on both sides of the second light-emitting element 220; the first retaining wall 310 is located on the side of the second light-emitting element 220 away from the first display area AA1, and the second retaining wall 320 is located on the side of the second light-emitting element 220 close to the first display area AA1; part of the light emitted by the second light-emitting element 220 is reflected by the first retaining wall 310 to form a second angle light, and the angle between the second angle light and the first angle light emitted from the first display area AA1 is less than or equal to 10°.

[0028] For example, reference Figure 2 and Figure 3 The display panel 10 provided in the embodiment of the present invention includes a first display area AA1 and at least one second display area AA2, and the plane where the first display area AA1 is located intersects with the extension direction of the second display area AA2, that is, the second display area AA2 deviates from the plane where the first display area AA1 is located and is inclined relative to the first display area AA1. The display panel 10 includes an array substrate 100, a plurality of light-emitting elements 200, and a plurality of retaining walls 300, wherein the retaining walls 300 are located between adjacent light-emitting elements 200, and light crosstalk between adjacent light-emitting elements 200 can be avoided. For the convenience of explanation, the light-emitting elements 200 are divided into a first light-emitting element 210 and a second light-emitting element 220, and the first light-emitting element 210 is located in the first display area AA1, and the second light-emitting element 220 is located in the second display area AA2, and the retaining wall 300 located in the second display area AA2 is divided into a first retaining wall 310 and a second retaining wall 320, and the first retaining wall 310 and the second retaining wall 320 are respectively located on opposite sides of the second light-emitting element 220. Among them, the division of the first retaining wall 310 and the second retaining wall 320 is relative, that is, in the second display area AA2, for the second light-emitting element 220 located on the side of the retaining wall 300 away from the first display area AA1, the retaining wall 300 is the second retaining wall 320; for the second light-emitting element 220 located on the side of the retaining wall 300 close to the first display area AA1, the retaining wall 300 is the first retaining wall 310.

[0029] Specifically, the second display area AA2 deviates from the plane direction of the first display area AA1, and without considering the reflection effect of the baffle wall 300 on the light, since the second light-emitting element 220 itself is tilted, the overall light emission direction of the second light-emitting element 220 located in the second display area AA2 will be close to the front viewing direction, and only the lateral light emission on the side away from the first display area AA1 is deviated, and combined with the actual light path, the light emitted laterally from the second light-emitting element 220 is reflected by the second baffle wall 320 close to the first display area AA1, and its light emission direction is more likely to deviate from the front light emission direction of the first display area AA1, that is, the overall direction of the light emitted by the first light-emitting element 210, and the light emitted laterally from the second light-emitting element 220 is reflected by the first baffle wall 310 away from the first display area AA1, and its light emission direction is closer to the front light emission direction of the first display area AA1. Therefore, by setting the relative position relationship between the first baffle 310, the second baffle 320 and the second light-emitting element 220 in the second display area AA2, part of the light emitted by the second light-emitting element 220 is only reflected by the first baffle 310 located on the side of the second light-emitting element 220 away from the first display area AA1, and is not reflected by the second baffle 320 located on the side of the second light-emitting element 220 close to the first display area AA1, so that the second angle light formed by the reflection of the first baffle 310 is emitted from a direction close to the normal viewing angle, that is, the angle between the second angle light and the first angle light emitted from the first display area AA1 is less than or equal to 10°, so that more light is emitted in the direction of the normal viewing angle, the front light emission ratio of the second display area AA2 is increased, and the brightness of the second display area AA2 is enhanced, the brightness difference between the first display area AA1 and the second display area AA2 is reduced, and the display uniformity is improved.

[0030] It should be noted that Figure 2 Taking the example that the display panel 10 includes two second display areas AA2, and the two second display areas AA2 are respectively located on both sides of the first display area AA1, the embodiment of the present invention does not limit the number of second display areas AA2, and the relative position relationship between the first display area AA1 and the second display area AA2, and those skilled in the art can set them according to actual conditions. In addition, the material and shape of the retaining wall 300, and the number of the light-emitting elements 200 are not limited.

[0031] It can be understood that, similar to conventional display panels, the array substrate 100 in the display panel 10 provided in the embodiment of the present invention may include a substrate, a gate, a gate insulation layer, an active layer, an interlayer insulation layer, a source and drain layer, a planarization layer and other film layers, and the specific film layer structure can be set according to actual needs.

[0032] A display panel provided by an embodiment of the present invention comprises a first display area and a second display area deviating from a plane where the first display area is located. Since the second light-emitting element located in the second display area is tilted itself, the overall light emission direction of the second light-emitting element will be close to the direction of the normal viewing angle, and only the lateral light emission on the side away from the first display area will deviate. By arranging a part of the light emitted by the second light-emitting element in the second display area, it will not be reflected by the second baffle wall located on the side of the second light-emitting element close to the first display area to cause deviation from the normal viewing angle, but will only be reflected by the first baffle wall located on the side of the second light-emitting element away from the first display area, so that the lateral light deviating from the normal viewing angle is reflected and emitted from the direction close to the normal viewing angle, thereby emitting more light in the direction of the normal viewing angle. In this way, the front light emission ratio of the second display area can be increased, the brightness of the second display area can be enhanced, the brightness difference between the first display area and the second display area can be reduced, and the display uniformity of the display panel can be improved.

[0033] refer to Figure 2 and Figure 3 , based on the above embodiment, optionally, the angle between the first angle light and the second angle light is equal to 0°.

[0034] When part of the light emitted by the second light-emitting element 220 is reflected by the first baffle wall 310 to form a second angle light that is directly emitted from the normal viewing angle, the angle between the second angle light and the first angle light emitted from the first display area AA1 is 0°, that is, the first angle light and the second angle light are parallel light beams, so that the brightness of the first display area AA1 and the second display area AA2 can be made consistent, further improving the uniformity of the display.

[0035] refer to Figure 2 and Figure 3 Optionally, along the extension direction parallel to the second display area AA, the minimum distance between the first retaining wall 310 and the second light-emitting element 220 is a, and the minimum distance between the second retaining wall 320 and the second light-emitting element 220 is b, wherein a<b.

[0036] In combination with the above, in order to ensure that part of the light emitted by the second light-emitting element 220 in the second display area AA2 is only reflected by the first blocking wall 310 located on the side of the second light-emitting element 220 away from the first display area AA1, and not reflected by the second blocking wall 320 located on the side of the second light-emitting element 220 close to the first display area AA1, this can be achieved by setting the distance between the second light-emitting element 220 and the blocking walls 300 on both sides (the first blocking wall 310 and the second blocking wall 320). Specifically, since the second light-emitting element 220 itself is inclined, the overall light emission direction of the second light-emitting element 220 will be close to the direction of the normal viewing angle, and only the lateral light emission on the side away from the first display area AA1 will deviate. Therefore, in the second display area AA2, the minimum distance a between the first baffle wall 310 and the second light-emitting element 220 is set to be smaller than the minimum distance b between the second baffle wall 320 and the second light-emitting element 220. In this way, the light emitted laterally from the second light-emitting element 220 will not be reflected by the second baffle wall 320 away from the second light-emitting element 220 and deviate from the direction of the normal viewing angle, but will be easily reflected by the first baffle wall 310 close to the second light-emitting element 220 and emitted from a direction close to the normal viewing angle, thereby emitting more light in the direction of the normal viewing angle, thereby increasing the front light emission ratio of the second display area AA2, enhancing the brightness of the second display area AA2, reducing the brightness difference between the first display area AA1 and the second display area AA2, and improving the display uniformity. In addition, the brightness of the second display area AA2 is controlled by adjusting the distance between the second light emitting element 220 and the two side retaining walls 300 , which does not change the existing film structure and process flow of the display panel 10 . The method is simple and efficient.

[0037] refer to Figure 2 and Figure 3 Optionally, along the extension direction parallel to the second display area AA2, the minimum distance between the first retaining wall 310 and the second light-emitting element 220 is a; the retaining wall 300 located in the first display area AA1 includes a third retaining wall 330, and the minimum distance between the third retaining wall 330 and the first light-emitting element 210 is c, where a<c.

[0038] Specifically, in the first display area AA1, the minimum distance between the first light emitting element 210 and the third blocking walls 330 on both sides is c, that is, the first light emitting element 210 is located in the middle between the two third blocking walls 330, so as to reflect the light emitted laterally from the first light emitting element 210 to the front viewing direction through the third blocking walls 330 on both sides, thereby improving the front light emission of the display panel 10. In the second display area AA2, the second light emitting element 220 is not located in the middle between the first blocking wall 310 and the second blocking wall 320, but is closer to the first blocking wall 310, that is, the minimum distance a between the first blocking wall 310 and the second light emitting element 220 is less than the minimum distance c between the third blocking wall 330 and the first light emitting element 210. In this way, the light emitted laterally from the second light-emitting element 220 is easily reflected by the first baffle 310 close to the second light-emitting element 220 and then emitted from a direction close to the normal viewing angle, and will not be reflected by the second baffle 320 far from the second light-emitting element 220 and deviate from the normal viewing direction, thereby emitting more light in the normal viewing direction, increasing the front light emission ratio of the second display area AA2, enhancing the brightness of the second display area AA2, and improving the display uniformity. In addition, the relative position relationship between the third baffle 330 and the first light-emitting unit 210 in the first display area AA1 conforms to the existing process, and the brightness of the second display area AA2 can be controlled by adjusting the distance between the second light-emitting element 220 and the baffles 300 on both sides, which is simple and efficient.

[0039] Figure 4 is a schematic top view of another display panel provided by an embodiment of the present invention, Figure 5 yes Figure 4 A cross-sectional schematic diagram along the section line BB', for example, referring to Figures 2 to 5 Optionally, at least one second display area AA2 includes a first sub-display area AA21 and a second sub-display area AA22; the second sub-display area AA22 is located on a side of the first sub-display area AA21 away from the first display area AA1, or the curvature of the second sub-display area AA22 is greater than the curvature of the first sub-display area AA21.

[0040] refer to Figures 2 to 5 Optionally, the first sub display area AA21 and the second sub display area AA22 are located on opposite sides of the first display area AA1, or the first sub display area AA21 and the second sub display area AA22 are located on the same side of the first display area AA1.

[0041] Specifically, the second display area AA2 includes a first sub-display area AA21 and a second sub-display area AA22, and the first sub-display area AA21 and the second sub-display area AA22 deviate from the plane where the first display area AA1 is located to different degrees. Figure 5As shown, when the first sub display area AA21 and the second sub display area AA22 are located on the same side of the first display area AA1, the second sub display area AA22 is located on the side of the first sub display area AA21 away from the first display area AA1, that is, relative to the first sub display area AA21, the second sub display area AA22 deviates from the first display area AA1 to a greater extent.

[0042] refer to Figure 3 and Figure 5 When the first sub display area AA21 and the second sub display area AA22 are located on opposite sides of the first display area AA1, or when the first sub display area AA21 and the second sub display area AA22 are located on the same side of the first display area AA1, the first sub display area AA21 and the second sub display area AA22 may have different degrees of curvature, that is, have different curvatures. Generally, the larger the curvature, the greater the degree of curvature. In this embodiment, the curvature of the second sub display area AA22 is greater than that of the first sub display area AA21, that is, the curvature of the second sub display area AA22 is greater than that of the first sub display area AA21.

[0043] In other words, the first sub-display area AA21 and the second sub-display area AA22 deviate from the plane where the first display area AA1 is located to different degrees, which can also be expressed by an angle relationship. Figure 3 and Figure 5 , the plane where the display panel 10 is located is the first plane 11, the acute angle between the extension direction of the first sub-display area AA21 and the first plane 11 is θ1, and the acute angle between the extension direction of the second sub-display area AA22 and the first plane 11 is θ2, wherein θ1<θ2. The display panel 10 has the second display area AA2 with different curvatures, which can fully meet the needs of users and improve the visual experience of users.

[0044] refer to Figure 3 On the basis of the above embodiments, optionally, in the first sub-display area AA21, the minimum distance between the first retaining wall 310 and the second light-emitting element 220 is a1, and in the second sub-display area AA22, the minimum distance between the first retaining wall 310 and the second light-emitting element 220 is a2, wherein a1>a2; and / or, in the first sub-display area AA21, the minimum distance between the second retaining wall 320 and the second light-emitting element 220 is b1, and in the second sub-display area AA22, the minimum distance between the second retaining wall 320 and the second light-emitting element 220 is b2, wherein b1<b2.

[0045] Specifically, since the first sub-display area AA21 and the second sub-display area AA22 deviate from the first display area AA1 to different degrees, when observed from the normal viewing angle, the brightness of the first sub-display area AA21 and the second sub-display area AA22 are different. Compared with the first sub-display area AA21, the second sub-display area AA22 deviates from the first display area AA1 to a greater extent. Therefore, without considering the reflection of the lateral light emitted by the second light-emitting element 220 by the retaining wall 300, since the second light-emitting element 220 itself is tilted, the overall light emission direction of the second light-emitting element 220 located in the second sub-display area AA22 is closer to the normal viewing angle direction than the second light-emitting element 220 located in the first sub-display area AA21, and only the lateral light emitted on the side away from the first display area AA1 is deviated. In order to balance the brightness difference between different sub-display areas in the second display area AA2, the second light-emitting element 220 in the second sub-display area AA22 that deviates more from the first display area AA1 can be arranged to be closer to the first blocking wall 310 and farther away from the second blocking wall 320. Then, the first blocking wall 310 will be more likely to reflect the light emitted by the second light-emitting element 220 to a direction close to the normal viewing angle, and the second blocking wall 320 will be less likely to reflect the light so that the light output direction deviates from the normal viewing angle, thereby emitting more light from the direction close to the normal viewing angle.

[0046] In other words, the minimum distance a1 between the first retaining wall 310 and the second light-emitting element 220 in the first sub-display area AA21 needs to be greater than the minimum distance a2 between the first retaining wall 310 and the second light-emitting element 220 in the second sub-display area AA22; and / or, the minimum distance b1 between the second retaining wall 320 and the second light-emitting element 220 in the first sub-display area AA21 needs to be less than the minimum distance b2 between the second retaining wall 320 and the second light-emitting element 220 in the second sub-display area AA22. Such a setting can not only reduce the difference between the overall brightness of the second display area AA2 and the brightness of the first display area AA1, but also reduce the brightness difference between the sub-display areas in the second display area AA2 that deviate from the first display area AA1 to different degrees, thereby further improving the display uniformity of the display panel 10.

[0047] It should be noted that, in the above, only the example in which the second display area AA2 includes two sub-display areas (a first sub-display area AA21 and a second sub-display area AA22) with two different degrees of deviation is taken. It is not limited thereto. The second display area AA2 can also include three or more sub-display areas with different degrees of deviation, as long as it is ensured that in each sub-display area, the second light-emitting element 200 in the sub-display area with a larger degree of deviation from the first display area AA1 is closer to the first retaining wall 310 and farther away from the second retaining wall 320.

[0048] Figure 6 yes Figure 2 Another cross-sectional schematic diagram along the section line AA' is shown in FIG. Figure 6As shown, optionally, the first retaining wall 310 includes a first side wall 31 close to the second light-emitting element 220 and a first bottom surface 32 close to the array substrate 100, and the second retaining wall 320 includes a second side wall 33 close to the second light-emitting element 220 and a second bottom surface 34 close to the array substrate 100; the angle between the first side wall 31 and the first bottom surface 32 is θa, and the angle between the second side wall 33 and the second bottom surface 34 is θb, θa and θb are both acute angles, and θa>θb.

[0049] In combination with the above, in order to make part of the light emitted by the second light emitting element 220 in the second display area AA2 only reflected by the first retaining wall 310 located on the side of the second light emitting element 220 away from the first display area AA1, and not reflected by the second retaining wall 320 located on the side of the second light emitting element 220 close to the first display area AA1, this can be achieved by setting the inclination angles of the side walls of the first retaining wall 310 and the second retaining wall 320. Specifically, the acute angle θa between the first side wall 31 of the first retaining wall 310 and the first bottom surface 32 needs to be greater than the acute angle θb between the second side wall 33 of the second retaining wall 320 and the second bottom surface 34, so that the first side wall 31 of the first retaining wall 310 close to the second light emitting element 220 and the second side wall 33 of the second retaining wall 320 close to the second light emitting element 220 are both inclined in the direction away from the second light emitting element 220. When the first side wall 31 of the first baffle 310 is tilted in a direction away from the second light-emitting element 220, it is convenient to utilize the tilt angle of the first side wall 31 to reflect the light emitted laterally from the second light-emitting element 220, so that the second angle light formed after the reflection is emitted from a direction close to the normal viewing angle; and when the second side wall 33 of the second baffle 320 is tilted in a direction away from the second light-emitting element 220, the light emitted laterally from the second light-emitting element 220 is less likely to be reflected by the second baffle 320, or even will not be reflected by the second baffle 320, causing the light emission direction to deviate from the normal viewing angle, thereby emitting more light in the second display area AA2 in the normal viewing angle direction, increasing the front light emission ratio of the second display area AA2, and further enhancing the brightness of the second display area AA2, balancing the brightness difference between the first display area AA1 and the second display area AA2, and improving the display uniformity.

[0050] Figure 7 yes Figure 2 Another cross-sectional diagram along the section line AA', refer to Figure 6 and Figure 7 It should be noted that, on the basis that the first retaining wall 310 and the second retaining wall 320 satisfy θa>θb, the minimum distance a between the first retaining wall 310 and the second light-emitting element 220 can be equal to the minimum distance b between the second retaining wall 320 and the second light-emitting element 220 (refer to Figure 6), the minimum distance a between the first retaining wall 310 and the second light emitting element 220 may also be smaller than the minimum distance b between the second retaining wall 320 and the second light emitting element 220 (refer to Figure 7 ), and when a<b is satisfied, more light in the second display area AA2 can be further emitted toward the positive viewing direction, thereby increasing the front light emission ratio of the second display area AA2.

[0051] refer to Figure 6 and Figure 7 On the basis of the above embodiment, optionally, the cross-sectional shape of the first retaining wall 310 and the second retaining wall 320 along the thickness direction parallel to the display panel 10 can be a triangle. The cross-sectional shape of the first retaining wall 310 and the second retaining wall 320 is a triangle, which is conducive to designing the inclination angle of the first side wall 31 of the first retaining wall 310 and the second side wall 33 of the second retaining wall 320 so that they satisfy θa>θb, thereby balancing the brightness difference between the first display area AA1 and the second display area AA2. In addition, the cross-sectional shape is a triangle, which is conducive to enhancing the stability of the first retaining wall 310 and the second retaining wall 320.

[0052] It should be noted that in other embodiments, the cross-sectional shape of the first retaining wall 310 and the second retaining wall 320 along the thickness direction parallel to the display panel 10 can also be other shapes such as a trapezoid, as long as the inclination angle θa of the first side wall 31 of the first retaining wall 310 and the inclination angle θb of the second side wall 33 of the second retaining wall 320 satisfy θa>θb.

[0053] refer to Figure 6 and Figure 7 Optionally, the retaining wall 300 located in the first display area AA1 includes a third retaining wall 330, and the third retaining wall 330 includes a third side wall 35 close to the first light-emitting element 210 and a third bottom surface 36 close to the side of the array substrate 100; the angle between the third side wall 35 and the third bottom surface 36 is θp, θp is an acute angle, wherein θa>θp>θb.

[0054] Specifically, in the first display area AA1, the acute angle θp between the third side wall 35 and the third bottom surface 36 of the third baffle 330 located on both sides of the first light-emitting element 210 is equal, that is, the inclination angles of the two side walls of the third baffle 330 are the same. Exemplarily, the cross-sectional shape of the third baffle 330 along the thickness direction parallel to the display panel 10 is an isosceles trapezoid, which is beneficial for reflecting the light emitted laterally from the first light-emitting element 210 through the third baffle 330 on both sides to the direction of the positive viewing angle, thereby improving the front light output of the display panel 10. In the second display area AA2, the inclination angle θa of the first side wall 31 of the first retaining wall 310 is greater than the inclination angle θb of the second side wall 33 of the second retaining wall 320. In this way, the light emitted laterally from the second light-emitting element 220 is reflected to a direction close to the front viewing angle through the coordination of the inclination angles of the first side wall 31 and the second side wall 33, thereby increasing the front light emission ratio of the second display area AA2 and reducing the brightness difference between the first display area AA1 and the second display area AA2. The inclination angles of the first side wall 31 of the first retaining wall 310 and the second side wall 33 of the second retaining wall 320 in the second display area AA2 can be designed based on the inclination angle of the third side wall 35 of the third retaining wall 330 in the first display area AA1, that is, θa>θp>θb is satisfied, which is conducive to simplifying the process and improving production efficiency.

[0055] Figure 8 yes Figure 2 Another cross-sectional schematic diagram along the section line AA' is shown in FIG. Figure 8 As shown, optionally, the retaining wall 300 includes a first end facing the array substrate 100 and a second end facing away from the array substrate 100, and in the direction from the first end to the second end, the size of the retaining wall 300 located in the first display area AA1 is h1, and the size of the retaining wall 300 located in the second display area AA2 is h2, wherein h1>h2.

[0056] In combination with the above, in order to make part of the light emitted by the second light-emitting element 220 in the second display area AA2 only reflected by the first baffle 310 located on the side of the second light-emitting element 220 far from the first display area AA1, and not reflected by the second baffle 320 located on the side of the second light-emitting element 220 close to the first display area AA1, this can be achieved by adjusting the height of the baffle 300. Specifically, the second display area AA2 deviates from the plane direction of the first display area AA1. Without considering the reflection effect of the baffle 300 on the light, due to the inclination of the second light-emitting element 220 itself, the overall light emission direction of the second light-emitting element 220 located in the second display area AA2 will be close to the front viewing direction, and only the lateral light emission on the side away from the first display area AA1 will deviate. In order to increase the front light emission ratio of the second light-emitting element 220, the height of the baffle 300 located in the second display area AA2 can be set to be lower, that is, the height h2 of the baffle 300 located in the second display area AA2 needs to be less than the height h1 of the baffle 300 located in the first display area AA1, so that The light emitted by the second light-emitting element 220 will not be reflected by the baffle 300 (second baffle 320) located on the side of the second light-emitting element 220 close to the first display area AA1 and deviate from the normal viewing direction. Instead, the baffle 300 (first baffle 310) on the side of the second light-emitting element 220 away from the first display area AA1 will be used to reflect the lateral light deviating from the normal viewing direction to be emitted in a direction close to the normal viewing direction, thereby emitting more light in the normal viewing direction. In this way, the front light emission ratio of the second display area AA2 can be increased, the brightness of the second display area AA2 can be enhanced, the brightness difference between the first display area AA1 and the second display area AA2 can be reduced, and the display uniformity of the display panel 10 can be improved.

[0057] refer to Figure 8 On the basis of the above embodiment, optionally, in the direction from the first end to the second end, the size h2 of the retaining wall 300 in the edge area of ​​the second display area AA2 away from the first display area AA1 is greater than or equal to the size h1 of the retaining wall 300 in the first display area AA1; or, in the second display area AA2, the size h2 of the retaining wall 300 on the side away from the first display area AA1 where the second light-emitting element 220 is not provided is greater than or equal to the size h1 of the retaining wall 300 in the first display area AA1.

[0058] For example, the retaining wall 300 in the edge area of ​​the second display area AA2 away from the first display area AA1, or the retaining wall 300 in the second display area AA2 away from the first display area AA1 without the second light emitting element 220, can refer to Figure 8As shown in the leftmost side of the second sub-display area AA22 or the rightmost side of the first sub-display area AA21, since the second light-emitting element 220 is not disposed on the side of the barrier 300 away from the first display area AA1, the side light of the second light-emitting element 220 will not be emitted from a direction deviating from the normal viewing angle after being reflected by the barrier 300. At the same time, since the second light-emitting element 220 is disposed on the side of the barrier 300 close to the first display area AA1, the side light of the second light-emitting element 220 will be emitted from a direction close to the normal viewing angle after being reflected by the barrier 300 (for the second light-emitting element 220, the barrier 300 is the first barrier 310). Therefore, the height h2 of the retaining wall 300 in the edge area of ​​the second display area AA2 away from the first display area AA1, or the height h2 of the retaining wall 300 in the second display area AA2 away from the first display area AA1 where the second light-emitting element 220 is not arranged, may be greater than or equal to the height h1 of the retaining wall 300 in the first display area AA1, and the larger the height h2 of the retaining wall 300 is, the more conducive it is to reflect the lateral light emitted by the second light-emitting element 220 located on the side close to the first display area AA1 and emit it from a direction close to the normal viewing angle, thereby enhancing the brightness of the second display area AA2 and improving the display uniformity. The height h2 of the retaining wall 300 in other areas of the second display area AA2 except the edge area, i.e., the non-edge area, or the retaining wall 300 on the side away from the first display area AA1 where the second light-emitting element 220 is arranged, can be smaller than the height h1 of the retaining wall 300 in the first display area AA1. In this way, by setting the height of the retaining wall 300 in the second display area AA2 in partitions, the adjustment of the height of the retaining wall 300 can be fully utilized to optimize the brightness of the second display area AA2, thereby further improving the display uniformity of the display panel 10.

[0059] It should be noted that the embodiment of the present invention does not limit the number of retaining walls 300 in the edge area of ​​the second display area AA2 away from the first display area AA1, or the number of retaining walls 300 in the second display area AA2 away from the first display area AA1 where the second light-emitting element 220 is not provided, and those skilled in the art can set them according to actual conditions.

[0060] Optionally, the retaining wall 300 includes a first end facing the array substrate 100 and a second end facing away from the array substrate 100, and in the direction from the first end to the second end, the size of the retaining wall 300 located in the first sub-display area AA1 is h3, and the size of the retaining wall 300 located in the second sub-display area AA22 is h4, wherein h3>h4.

[0061] Specifically, in combination with the above, compared with the first sub-display area AA21, the second sub-display area AA22 deviates from the first display area AA1 to a greater extent. Then, without considering the lateral light reflection of the second light-emitting element 220 by the retaining wall 300, due to the inclination of the second light-emitting element 220 itself, the overall light emission direction of the second light-emitting element 220 located in the second sub-display area AA22 is closer to the direction of the normal viewing angle relative to the second light-emitting element 220 located in the first sub-display area AA21, and only the lateral light emission away from the side of the first display area AA1 is deviated. In order to balance the brightness difference between different sub-display areas in the second display area AA2, the height h4 of the retaining wall 300 in the second sub-display area AA22 that deviates from the first display area AA1 to a greater extent can be set to be smaller than the height h3 of the retaining wall 300 in the first sub-display area AA21 that deviates from the first display area AA1 to a lesser extent, that is, h3>h4 is satisfied. The height h4 of the baffle wall 300 of the second sub-display area AA22 is relatively low, and the light emitted by the second light-emitting element 220 is less likely to be reflected by the baffle wall 300 (second baffle wall 320) located on the side of the second light-emitting element 220 close to the first display area AA1 and deviate from the direction of the normal viewing angle. The baffle wall 300 (first baffle wall 310) on the side of the second light-emitting element 220 away from the first display area AA1 is used to reflect the lateral light deviating from the normal viewing angle to be emitted in a direction close to the normal viewing angle, thereby increasing the front light output ratio of the second sub-display area AA22, enhancing the brightness of the second sub-display area AA22, and further balancing the brightness difference between the first sub-display area AA21 and the second sub-display area AA22, thereby further improving the display uniformity of the display panel 10.

[0062] Fig. 9 yes Figure 2 Another cross-sectional diagram along the section line AA', refer to Figure 8 and Fig. 9 It should be noted that, on the basis that the height h3 of the retaining wall 300 in the first sub-display area AA21 and the height h4 of the retaining wall 300 in the second sub-display area AA22 satisfy h3>h4, the minimum distance a between the first retaining wall 310 and the second light-emitting element 220 can be equal to the minimum distance b between the second retaining wall 320 and the second light-emitting element 220 (refer to Figure 8 ), the minimum distance a between the first retaining wall 310 and the second light emitting element 220 may also be smaller than the minimum distance b between the second retaining wall 320 and the second light emitting element 220 (refer to Fig. 9 ).

[0063] Optionally, the light emitting element 200 includes a light emitting diode.

[0064] The first light emitting element 210 and the second light emitting element 220 in the display panel 10 provided in the embodiment of the present invention can be set as light emitting diodes such as Micro LED or Mini LED. The display panel 10 using Micro LED or Mini LED has the advantages of high brightness, low operating voltage, low power consumption, long life, impact resistance and stable performance.

[0065] refer to Figure 2 and Figure 3 Optionally, the display panel 10 includes a flat display area and a curved display area, the first display area AA1 is located in the flat display area, and the second display area AA2 is located in the curved display area.

[0066] The display panel 10 provided in the embodiment of the present invention is a curved display panel, specifically a fixed curved display panel, wherein the first display area AA1 is a flat display area of ​​the display panel 10 , and the second display area AA2 is a curved display area of ​​the display panel 10 .

[0067] Based on the same inventive concept, an embodiment of the present invention further provides a display device. Fig.10 is a schematic diagram of the structure of a display device provided by an embodiment of the present invention, such as Fig.10 As shown, the display device includes the display panel 10 provided by any embodiment of the present invention, and has the corresponding functions and beneficial effects of the display panel 10.

[0068] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0069] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: The display panel includes a first display area and at least one second display area; a plane where the first display area is located intersects with an extension direction of the second display area; The display panel comprises: An array substrate; A plurality of light-emitting elements and a plurality of retaining walls are located on the same side of the array substrate; the light-emitting elements include a first light-emitting element and a second light-emitting element, the first light-emitting element is located in the first display area, and the second light-emitting element is located in the second display area; the retaining walls are located between adjacent light-emitting elements; Wherein, the blocking wall located in the second display area includes a first blocking wall and a second blocking wall, the first blocking wall and the second blocking wall are respectively located on both sides of the second light-emitting element; the first blocking wall is located on a side of the second light-emitting element away from the first display area, and the second blocking wall is located on a side of the second light-emitting element close to the first display area; part of the light emitted by the second light-emitting element is reflected by the first blocking wall to form a second angle light, and the angle between the second angle light and the first angle light emitted from the first display area is less than or equal to 10°; Along an extension direction parallel to the second display area, a minimum distance between the first retaining wall and the second light-emitting element is a, and a minimum distance between the second retaining wall and the second light-emitting element is b, wherein a<b.

2. The display panel according to claim 1, characterized in that: The light emitting element includes a light emitting diode.

3. The display panel according to claim 1, characterized in that: The display panel includes a flat display area and a curved display area, the first display area is located in the flat display area, and the second display area is located in the curved display area.

4. The display panel according to claim 1, characterized in that: The included angle between the first angle light and the second angle light is equal to 0°.

5. The display panel according to claim 1, characterized in that: Along the extension direction parallel to the second display area, the minimum distance between the first blocking wall and the second light-emitting element is a; the blocking wall located in the first display area includes a third blocking wall, and the minimum distance between the third blocking wall and the first light-emitting element is c, where a<c.

6. The display panel according to claim 1, characterized in that: The at least one second display area includes a first sub-display area and a second sub-display area; The second sub display area is located on a side of the first sub display area away from the first display area, or the curvature of the second sub display area is greater than the curvature of the first sub display area.

7. The display panel according to claim 6, characterized in that: The retaining wall includes a first end facing the array substrate and a second end facing away from the array substrate. In the direction from the first end to the second end, the size of the retaining wall located in the first sub-display area is h3, and the size of the retaining wall located in the second sub-display area is h4, wherein h3>h4.

8. The display panel according to claim 6, characterized in that: The first sub display area and the second sub display area are located on two opposite sides of the first display area, or the first sub display area and the second sub display area are located on the same side of the first display area.

9. The display panel according to claim 6, characterized in that: In the first sub-display area, the minimum distance between the first blocking wall and the second light-emitting element is a1, and in the second sub-display area, the minimum distance between the first blocking wall and the second light-emitting element is a2, wherein a1>a2; And / or, in the first sub-display area, the minimum distance between the second blocking wall and the second light-emitting element is b1, and in the second sub-display area, the minimum distance between the second blocking wall and the second light-emitting element is b2, wherein b1<b2.

10. A display panel, characterized in that: The display panel includes a first display area and at least one second display area; a plane where the first display area is located intersects with an extension direction of the second display area; The display panel comprises: An array substrate; A plurality of light-emitting elements and a plurality of retaining walls are located on the same side of the array substrate; the light-emitting elements include a first light-emitting element and a second light-emitting element, the first light-emitting element is located in the first display area, and the second light-emitting element is located in the second display area; the retaining walls are located between adjacent light-emitting elements; Wherein, the blocking wall located in the second display area includes a first blocking wall and a second blocking wall, the first blocking wall and the second blocking wall are respectively located on both sides of the second light-emitting element; the first blocking wall is located on a side of the second light-emitting element away from the first display area, and the second blocking wall is located on a side of the second light-emitting element close to the first display area; part of the light emitted by the second light-emitting element is reflected by the first blocking wall to form a second angle light, and the angle between the second angle light and the first angle light emitted from the first display area is less than or equal to 10°; The first retaining wall includes a first side wall close to the second light emitting element and a first bottom surface close to the array substrate, and the second retaining wall includes a second side wall close to the second light emitting element and a second bottom surface close to the array substrate; The included angle between the first side wall and the first bottom surface is θa, the included angle between the second side wall and the second bottom surface is θb, θa and θb are both acute angles, and θa>θb.

11. The display panel according to claim 10, characterized in that: The cross-sectional shapes of the first retaining wall and the second retaining wall along a direction parallel to the thickness of the display panel are both triangular.

12. The display panel according to claim 10, characterized in that: The retaining wall located in the first display area includes a third retaining wall, and the third retaining wall includes a third side wall close to the first light emitting element and a third bottom surface close to one side of the array substrate; An included angle between the third side wall and the third bottom surface is θp, θp is an acute angle, wherein θa>θp>θb.

13. A display panel, characterized in that: The display panel includes a first display area and at least one second display area; a plane where the first display area is located intersects with an extension direction of the second display area; The display panel comprises: An array substrate; A plurality of light-emitting elements and a plurality of retaining walls are located on the same side of the array substrate; the light-emitting elements include a first light-emitting element and a second light-emitting element, the first light-emitting element is located in the first display area, and the second light-emitting element is located in the second display area; the retaining walls are located between adjacent light-emitting elements; Wherein, the blocking wall located in the second display area includes a first blocking wall and a second blocking wall, the first blocking wall and the second blocking wall are respectively located on both sides of the second light-emitting element; the first blocking wall is located on a side of the second light-emitting element away from the first display area, and the second blocking wall is located on a side of the second light-emitting element close to the first display area; part of the light emitted by the second light-emitting element is reflected by the first blocking wall to form a second angle light, and the angle between the second angle light and the first angle light emitted from the first display area is less than or equal to 10°; The retaining wall includes a first end facing the array substrate and a second end facing away from the array substrate. In the direction from the first end to the second end, the size of the retaining wall located in the first display area is h1, and the size of the retaining wall located in the second display area is h2, wherein h1>h2.

14. A display device, characterized in that: A display panel comprising any one of claims 1-13.

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