Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. A light-emitting layer comprises a first light-emitting unit, and the width of the first light-emitting unit in the first direction is smaller than the width of the first light-emitting unit in the second direction. The shielding layer is located on the side, facing the light-emitting face of the display panel, of the light-emitting layer and comprises a shading structure located on the periphery of the light-emitting unit. The light control layer is located on the side, away from the light emitting layer, of the shielding layer and comprises a first light control unit, and the first light control unit is overlapped with the first light emitting unit in the direction perpendicular to the plane where the display panel is located. The first light control unit comprises a first light scattering structure and / or a first light converging structure, the first light scattering structure extends in the second direction, and the first light converging structure extends in the first direction. The light-operated unit above the light-emitting unit modulates the light with unbalanced light quantity in each direction, so that the picture displayed by the display panel has no obvious color difference under the large visual angle in each direction, the display panel can accurately express the color of the picture under the large visual angle in each direction, and the user experience is improved.

Description

Technical Field

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

[0002] With the development of display technology, pixels in display panels are taking on increasingly diverse shapes. For example, in the real-image arrangement of pixels in medium-sized OLED display panels, some pixels are typically rectangular with a significant difference between their length and width. When a light-blocking structure is placed above the OLED light-emitting layer, color shift issues can easily occur at large viewing angles, resulting in noticeable differences in horizontal and vertical visual effects. Therefore, when the length and width of some pixels in a display panel differ significantly, color shift problems will occur at certain angles. Summary of the Invention

[0003] In view of this, embodiments of this application provide a display panel and a display device to solve the above problems.

[0004] In a first aspect, embodiments of this application provide a display panel, including: The light-emitting layer includes multiple light-emitting units, among which a first light-emitting unit is included. The width of the first light-emitting unit along a first direction is smaller than its width along a second direction. The first direction and the second direction intersect and are both parallel to the plane on which the display panel is located. A shielding layer is located on the side of the light-emitting layer facing the light-emitting surface of the display panel. The shielding layer includes a light-shielding structure, which is located around the light-emitting unit. The light control layer is located on the side of the shielding layer that is away from the light-emitting layer. The light control layer includes multiple light control units. Among the multiple light control units, there is a first light control unit, which overlaps with a first light-emitting unit in a direction perpendicular to the plane of the display panel; the first light control unit includes a first light-diffusing structure and / or a first light-converging structure, the first light-diffusing structure extends in a second direction, and the first light-converging structure extends in a first direction.

[0005] Secondly, embodiments of this application provide a display device, including a display panel as provided in the first aspect.

[0006] In the technical solution provided in this application embodiment, the light control unit above the light-emitting unit modulates the light with uneven light intensity in various directions, so that the picture displayed by the display panel has no obvious color difference under large viewing angles in various directions, and the display panel can also accurately express the color of the picture under large viewing angles in various directions, thereby improving the user experience. Attached Figure Description

[0007] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 A schematic diagram of a display panel provided in an embodiment of this application; Figure 2 for Figure 1 A corresponding cross-sectional schematic diagram; Figure 3 This is a schematic diagram of light transmission related to an embodiment of this application; Figure 4 A schematic diagram of a projection of the first light-emitting unit; Figure 5 A schematic diagram of a projection of the first light-emitting unit; Figure 6 A schematic diagram of light transmission for the light emitted by the first light-emitting unit; Figure 7 This is a schematic cross-sectional view of the first light-emitting unit along a first direction; Figure 8 This is a schematic cross-sectional view of the first light-emitting unit along the second direction; Figure 9 This is a schematic cross-sectional view of the first light-emitting unit along the second direction; Figure 10 This is a schematic cross-sectional view of the first light-emitting unit along a first direction; Figure 11 This is a schematic cross-sectional view of the first light-emitting unit along a first direction; Figure 12 This is a schematic cross-sectional view of the first light-emitting unit along a first direction; Figure 13 This is a schematic cross-sectional view of the second light-emitting unit along the second direction; Figure 14 This is a schematic cross-sectional view of the second light-emitting unit along the second direction; Figure 15 This is a schematic cross-sectional view of the second light-emitting unit along the second direction; Figure 16 A schematic diagram of a projection of the first light-emitting unit; Figure 17 A schematic diagram of a projection of the first light-emitting unit; Figure 18 A schematic diagram of a projection of the third light-emitting unit; Figure 19 A schematic diagram of a projection of the third light-emitting unit; Figure 20 A schematic diagram of a projection of the third light-emitting unit; Figure 21a This is a schematic cross-sectional view of the first light-emitting unit along the second direction; Figure 21b This is a schematic cross-sectional view of the first light-emitting unit along a first direction; Figure 22a This is a schematic cross-sectional view of the first light-emitting unit along the second direction; Figure 22b This is a schematic cross-sectional view of the first light-emitting unit along a first direction; Figure 23a This is a schematic cross-sectional view of the first light-emitting unit along the second direction; Figure 23b This is a schematic cross-sectional view of the first light-emitting unit along a first direction; Figure 24 A schematic diagram of a display panel provided in an embodiment of this application; Figure 25 A schematic diagram of a display panel provided in an embodiment of this application; Figure 26 This is a schematic diagram of a display device provided in an embodiment of this application. Detailed Implementation

[0009] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0010] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0011] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms "a" and "the" as used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0012] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0013] In the description of this specification, it should be understood that the terms "substantially", "approximately", "about", "about", "roughly", "generally" and "generally" used in the claims and embodiments of this application refer to values ​​that can be generally agreed upon within a reasonable range of process operations or tolerances, rather than a precise value.

[0014] It should be understood that although terms such as "first," "second," etc., may be used to describe light-emitting units, light-controlling units, etc., in the embodiments of this application, these should not be limited to these terms. These terms are only used to distinguish light-emitting units, light-controlling units, etc., from each other. For example, without departing from the scope of the embodiments of this application, a first light-emitting unit may also be referred to as a second light-emitting unit, and similarly, a second light-emitting unit may also be referred to as a first light-emitting unit. Through meticulous and in-depth research, the applicant of this application has provided a solution to the problems existing in the prior art.

[0015] Figure 1 This is a schematic diagram of a display panel provided in an embodiment of this application. Figure 2 for Figure 1 A corresponding cross-sectional schematic diagram, in which, Figure 2 The diagram includes a cross-sectional view of the first light-emitting unit 11 along the first direction X and a cross-sectional view along the second direction Y.

[0016] Combination Figure 1 and Figure 2 The display panel 01 provided in this application embodiment includes a light-emitting layer 10, a shielding layer and a light control layer 30. The shielding layer is located on the side of the light-emitting layer 10 facing the light-emitting surface of the display panel 01, and the light control layer 30 is located on the side of the shielding layer away from the light-emitting layer 10.

[0017] The light-emitting layer 10 includes a plurality of light-emitting units 100, which can be at least one of organic light-emitting diodes (OLEDs), micro-light-emitting diodes (Miro-LEDs), and sub-millimeter light-emitting diodes (Mini-LEDs).

[0018] The shielding layer includes a light-shielding structure 21, which is located around the light-emitting unit 100. It should be noted that the light-shielding structure 21 and the light-emitting unit 100 are not on the same layer. The light-shielding structure 21 being located around the light-emitting unit 100 means that the area where the light-shielding structure 21 is located is outside the area where the light-emitting unit 100 is located. Therefore, the orthographic projection of the light-shielding structure 21 onto the light-emitting layer 10 is located around the light-emitting unit 100. The light-shielding structure 21 can block light emitted by the light-emitting unit 100 on one side from reaching the area where the light-emitting unit 100 is located on the other side, thereby avoiding light crosstalk between pixels of adjacent light-emitting units 100. The light-shielding structure 21 can be a black matrix; it can also be a conductive structure, for example, the light-shielding structure 21 can be the metal lines included in a metal mesh touch electrode.

[0019] Continue to combine Figure 1 and Figure 2 The plurality of light-emitting units 100 includes a first light-emitting unit 11. The width of the first light-emitting unit 11 along the first direction X is smaller than its width along the second direction Y. The first direction X and the second direction Y intersect and are both parallel to the plane on which the display panel 01 is located. The first direction X may be perpendicular to the second direction Y and is also perpendicular to the thickness direction of the display panel 01. For example, the first direction X is parallel to the horizontal direction in the plane on which the display panel 01 is located, and the second direction Y is parallel to the vertical direction in the plane on which the display panel 01 is located. Since the light-shielding structure 21 is located on the periphery of the light-emitting unit 100, the length of the portion of the light-shielding structure 21 extending along the first direction X is smaller than the length of the portion extending along the second direction Y.

[0020] Figure 3 This is a schematic diagram of light transmission related to an embodiment of this application, wherein, Figure 3 It includes a cross-sectional view of the first light-emitting unit 11 in the prior art along the first direction X and a cross-sectional view of the first light-emitting unit 11 along the second direction Y.

[0021] like Figure 3 As shown, due to space constraints, the distance between the light-shielding structure 21 and the edge of the light-emitting unit 100 in the second direction Y is approximately the same as or substantially the same as the distance between the light-shielding structure 21 and the edge of the light-emitting unit 100 in the second direction Y. Since the width of the first light-emitting unit 11 is greater in the second direction Y, then... Figure 3 As shown, more large-angle light rays can be seen at a wide viewing angle on the side of the first light-emitting unit 11 in the second direction Y, while the amount of light seen at a wide viewing angle on the side of the first light-emitting unit 11 in the first direction X is relatively less. Furthermore, since the length of the portion of the light-shielding structure 21 extending along the second direction Y is greater than the length of the portion extending along the first direction X, that is, the length of the light-shielding structure 21 outside the first light-emitting unit 11 in the first direction X is longer and the length of the light-shielding structure 21 outside the first light-emitting unit 11 in the second direction Y is shorter, the proportion of light-shielding structure 21 blocking the light emitted by the first light-emitting unit 11 in the first direction X is greater than the proportion of light-shielding structure 21 blocking the light emitted by the first light-emitting unit 11 in the second direction Y.

[0022] Taking the light emitted by the first light-emitting unit 11 as an example of the first color light, the explanation is as follows: For the reasons mentioned above, the amount of the first color light L1Y seen at a large viewing angle in the second direction Y is greater than the amount of the first color light L1X seen at a large viewing angle in the first direction X. For example, the angular range in which the first color light L1X can be seen in the first direction X is θ1x, and the angular range in which the first color light L1Y can be seen in the second direction Y is θ1y, where θ1y > θ1x; (The last part, "greater than 0.5," is a separate, unrelated statement and can be omitted.) When viewing the screen at a perspective of θ1x, the first color light is visible at a large viewing angle in the first direction X, but is almost invisible at a large viewing angle in the second direction Y. When the first color light is mixed with light emitted by other color light-emitting units 100, the color of the image seen at a large viewing angle in the second direction Y is different from the color of the image seen at a large viewing angle in the first direction X. Assuming the first color light is blue light, the image seen at a large viewing angle in the first direction X will appear yellowish, and / or the image seen at a large viewing angle in the second direction Y will appear bluish.

[0023] In this application embodiment, in order to solve the above problems, such as Figure 1 and Figure 2 As shown, this embodiment of the application also provides a light control layer 30 located on the side of the shielding layer away from the light-emitting layer 10, that is, the light control layer 30 is located on the side of the shielding layer facing the light-emitting surface of the display panel 01. The light control layer 30 can regulate the light emitted by the light-emitting unit 100. The light control layer 30 may include a plurality of light control units 300, which overlap with the light-emitting unit 100 in a direction perpendicular to the plane of the display panel 01, so as to regulate the light path of the light emitted by the overlapping light-emitting unit 100.

[0024] The plurality of light control units 300 includes a first light control unit 31, which overlaps with the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01. That is, the first light control unit 31 is used to regulate the light path of the light emitted by the first light-emitting unit 11 after passing through the shielding layer, so as to solve the above-mentioned problem.

[0025] Figure 4 This is a schematic diagram of a projection of the first light-emitting unit. Figure 5 This is a schematic diagram of a projection of the first light-emitting unit.

[0026] like Figures 1-2 and Figures 4-5As shown, the first light control unit 31 includes a first diffusing structure 31a and / or a first converging structure 31b. The diffusing structure can diverge the light it receives, increasing the overall exit angle of the received light, that is, the maximum angle of the light emitted by the diffusing structure is greater than the maximum angle of the light received by the diffusing structure; the converging structure can converge the light it receives, decreasing the overall exit angle of the received light, that is, the maximum angle of the light emitted by the converging structure is less than the maximum angle of the light received by the converging structure.

[0027] The first light-diffusing structure 31a extends along the second direction Y, meaning that the edge of the first light-emitting unit 11 extending along the second direction Y is substantially parallel to the first light-diffusing structure 31a. In other words, the edges of the first light-emitting unit 11 arranged along the first direction X are substantially parallel to the first light-diffusing structure 31a. The first light-diffusing structure 31a can diffuse the light emitted by the first light-emitting unit 11 towards a first viewing angle, where the first viewing angle is the angle located on one side of the region where the first light-emitting unit 11 is located in the first direction X. When the first light control unit 31 includes the first light-diffusing structure 31a, the viewing angle range from which the first color light can be seen in the first direction X, located on one side of the first light-emitting unit 11, is expanded.

[0028] The first light-gathering structure 31b extends along the first direction X, meaning that the edge of the first light-emitting unit 11 extending along the first direction X is substantially parallel to the first light-gathering structure 31b. In other words, the edges of the first light-emitting unit 11 arranged along the second direction Y are substantially parallel to the first light-gathering structure 31b. The first light-gathering structure 31b can converge the light emitted by the first light-emitting unit 11 towards a second viewing angle, where the second viewing angle is the viewing angle located on one side of the region where the first light-emitting unit 11 is located in the second direction Y. When the first light control unit 31 includes the first light-gathering structure 31b, the viewing angle range from which the first color light can be seen in the second direction Y, located on one side of the first light-emitting unit 11, is reduced.

[0029] In one implementation, such as Figure 1 and Figure 2 As shown, the first light control unit 31 only includes the first light-diffusing structure 31a. By expanding the viewing angle range of the first color light that can be seen on one side of the first light-emitting unit 11 in the first direction X, the amount of light under a large viewing angle in the first direction X and the amount of light under a large viewing angle in the second direction Y are more balanced. Furthermore, by increasing the amount of the first color light under the first viewing angle, the color shift problem under the first viewing angle can be improved, and it is beneficial to improve the brightness of the display panel 01 under a large viewing angle.

[0030] In one implementation, such as Figure 4As shown, the first light control unit 31 only includes the first light-gathering structure 31b. By narrowing the viewing angle range of the first color light that can be seen on one side of the first light-emitting unit 11 in the second direction Y, the amount of light under the large viewing angle in the second direction Y is more balanced with the amount of light under the large viewing angle in the first direction Y.

[0031] In one implementation, such as Figure 5 As shown, the first light control unit 31 includes both a first light-diffusing structure 31a and a first light-converging structure 31b. By simultaneously expanding the viewing angle range of the first color light that can be seen on one side of the first light-emitting unit 11 in the first direction X and narrowing the viewing angle range of the first color light that can be seen on one side of the first light-emitting unit 11 in the second direction Y, the amount of light under the large viewing angle in the first direction X and the amount of light under the large viewing angle in the second direction Y are more balanced.

[0032] In the technical solution provided in this application embodiment, by setting the light control unit 300 on the side of at least some of the light-emitting units 100 facing the light-emitting surface of the display panel 01, and the light control layer 30 including the light control unit 300 is located on the side of the shielding layer away from the light-emitting layer 10, the light emitted by the light control unit 300 in different directions will have different degrees of attenuation after being blocked by the light-shielding structure 21 in the shielding layer. The light control unit 300 located above the light-emitting unit 100 modulates the light in a specific direction so that the image displayed on the display panel 01 has no obvious color difference at a large viewing angle in the first direction X and at a large viewing angle in the second direction Y. The display panel 01 can also accurately express the color of the image at a large viewing angle, thereby improving the user experience.

[0033] In one embodiment of this application, such as Figure 2 As shown, the light control unit 300 includes a first structure 301 and a second structure 302, wherein the refractive index of the first structure 301 is greater than the refractive index of the second structure 302. The first structure 301 includes a first groove portion 3010, and at least a portion of the second structure 302 is filled within the first groove portion 3010. The first groove portion 3010 may be as follows: Figure 2 The hollow portion that penetrates the first structure 301 shown can also be a recessed structure that does not penetrate the first structure 301 and whose opening direction is away from the light-emitting layer 10.

[0034] Figure 6 A schematic diagram of light transmission for the light emitted by the first light-emitting unit.

[0035] Combination Figure 2 and Figure 6The sidewall of the first recess 3010 contacts the second structure 302. At least a portion of the large-angle light emitted by the light-emitting unit 100 reaches the light control layer 30 and undergoes a process of emission from the second structure 302 (with a lower refractive index) to the first structure 301 (with a higher refractive index). Since the normal direction of the sidewall of the first recess 3010 is not parallel to the direction perpendicular to the plane of the display panel 01, please refer to... Figure 2 and Figure 6 The angle of these large-angle rays will increase during the process. Therefore, the area near the interface at the sidewall of the first groove 3010 can be regarded as a light-scattering structure 30a.

[0036] The first recessed portion 3010 overlaps with the light-emitting unit 100 in a direction perpendicular to the plane of the display panel 01. That is, the light control unit 300 overlaps with the light-emitting unit 100 in a direction perpendicular to the plane of the display panel 01. Therefore, in the orthographic projection in the direction perpendicular to the plane of the display panel 01, the orthographic projection of the diffused light structure 30a can overlap with or be adjacent to the orthographic projection of the edge of the light-emitting unit 100.

[0037] refer to Figure 2 and Figure 6 Taking the first light control unit 31 above the first light-emitting unit 11 as an example, the first color light emitted by the first light-emitting unit 11, directed at a large angle in the first direction X, passes through the second structure 302 with a relatively low refractive index located in the first groove portion 3010, and then reaches the first structure 301 with a relatively high refractive index through the sidewall of the first groove portion 3010. That is, the first color light L1X emitted by the first light-emitting unit 11, directed at a large angle in the first direction X, passes through the first diffusing structure 31a, and the propagation angle of the first color light L1X increases after passing through the first diffusing structure 31a.

[0038] Figure 7 This is a cross-sectional schematic diagram of the first light-emitting unit along a first direction.

[0039] In addition, refer to Figure 7The film layer containing the second structure 302 may also include an epitaxial portion 302' of the second structure 302. The second structure 302 and its epitaxial portion 302' are different parts of the same film layer, and the epitaxial portion 302' of the second structure 302 can be integral with the second structure 302, and both cover the first structure 301 together. Then, the light emitted by the light-emitting unit 100 can be incident again on the epitaxial portion 302' of the second structure 302, which has a relatively low refractive index, after passing through the diffuser structure 30a, and exit from the epitaxial portion 302'. Since the normal of the interface between the epitaxial portion 302' of the second structure 302 and the film layer containing the first structure 301 is substantially perpendicular to the plane of the display panel 01, the angle of the large-angle light passing through the epitaxial portion 302' will further increase, and the angle of the large-angle light emitted by the light-emitting unit 100 towards the first direction X-view angle will further increase.

[0040] For example, such as Figure 3 As shown, the maximum viewing angle range of the first color light L1X that can be seen in the first direction X is θ1x; even if the first color light L1X is partially blocked by the light-blocking structure 21, because the width of the first light-emitting unit 11 along the second direction Y is greater than the width of the first light-emitting unit 11 along the first direction X, the maximum viewing angle range of the first color light L1X that can be seen in the second direction Y is θ1y, and θ1y will be greater than θ1x. Figure 6 and Figure 7 As shown, by providing a first light-diffusing structure 31a above the first light-emitting unit 11 that overlaps or is adjacent to the edge of the first light-emitting unit 11 along the first direction X, the emission angle of the first color light L1X in the first direction X can be diffused. Therefore, the maximum viewing angle range of the first color light that can be seen in the first direction X is θ11, where θ11 > θ1x, and by adjusting the first light-diffusing structure 31a, θ11 can be made to be approximately equal to θ12.

[0041] Figure 8 This is a schematic cross-sectional view of the first light-emitting unit along the second direction.

[0042] In one embodiment of this application, such as Figure 8 As shown, the light control unit 300 includes a third structure 303 and a fourth structure 304, wherein the refractive index of the third structure 303 is less than that of the fourth structure 304. The third structure 303 includes a second recess 3030, and at least a portion of the fourth structure 304 is filled within the second recess 3030. The second recess 3030 may be as follows: Figure 8 The hollow portion that penetrates the third structure 303 shown can also be a recessed structure that does not penetrate the third structure 303 and whose opening direction is away from the light-emitting layer 10.

[0043] The sidewall of the second recess 3030 contacts the fourth structure 304. At least a portion of the large-angle light emitted by the light-emitting unit 100, after reaching the light control layer 30, undergoes a process of emission from the fourth structure 304 (with a higher refractive index) to the third structure 303 (with a lower refractive index). Since the normal direction of the sidewall of the second recess 3030 is not parallel to the direction perpendicular to the plane of the display panel 01, such as... Figure 8 As shown, the angles of these large-angle rays will decrease during the process. Therefore, the area near the interface on the sidewall of the second groove 3030 can be regarded as the light-gathering structure 30b.

[0044] The second recessed portion 3030 overlaps with the light-emitting unit 100 in a direction perpendicular to the plane of the display panel 01. That is, the light control unit 300 overlaps with the light-emitting unit 100 in a direction perpendicular to the plane of the display panel 01. Therefore, when orthographically projected in a direction perpendicular to the plane of the display panel 01, the orthographic projection of the light-gathering structure 30b can overlap with or be adjacent to the orthographic projection of the edge of the light-emitting unit 100.

[0045] like Figure 8 As shown, taking the first light control unit 31 above the first light-emitting unit 11 as an example, the first color light emitted by the first light-emitting unit 11, directed at a large angle in the second direction Y, passes through the fourth structure 304 with a relatively high refractive index located in the second groove portion 3030, and then reaches the third structure 303 with a relatively low refractive index through the sidewall of the second groove portion 3030. That is, the first color light L1Y emitted by the first light-emitting unit 11, directed at a large angle in the second direction Y, passes through the first light-converging structure 31b, and the propagation angle of the first color light L1Y is reduced after passing through the first light-converging structure 31b.

[0046] Figure 9 This is a schematic cross-sectional view of the first light-emitting unit along the second direction.

[0047] In addition, refer to Figure 9The film layer containing the fourth structure 304 may also include an epitaxial portion 304' of the fourth structure 304. The fourth structure 304 and its epitaxial portion 304' are different parts of the same film layer, and the epitaxial portion 304' of the fourth structure 304 can be integral with the fourth structure 304, and both cover the third structure 303 together. Then, the light emitted by the light-emitting unit 100 can be incident again on the epitaxial portion 304' of the fourth structure 304, which has a relatively high refractive index, after passing through the light-converging structure 30b, and exit from the epitaxial portion 304'. Since the normal of the interface between the epitaxial portion 304' of the fourth structure 304 and the film layer containing the third structure 303 is substantially perpendicular to the plane of the display panel 01, the angle of the large-angle light passing through the epitaxial portion 304' will be further reduced, and the angle of the large-angle light emitted by the light-emitting unit 100 towards the second direction Y-view angle will be further reduced.

[0048] For example, such as Figure 3 As shown, the maximum viewing angle range of the first color light L1Y that can be seen in the second direction Y is θ1y; even if the first color light L1Y is partially blocked by the light-blocking structure 21, because the width of the first light-emitting unit 11 along the first direction X is smaller than the width of the first light-emitting unit 11 along the second direction Y, the maximum viewing angle range of the first color light L1Y that can be seen in the first direction X is θ1x, and θ1x will be smaller than θ1y. Figure 8 and Figure 9 As shown, by setting a first light-gathering structure 31b above the first light-emitting unit 11 that overlaps or is adjacent to the edge of the first light-emitting unit 11 along the second direction Y, the emission angle of the first color light L1Y in the second direction Y can be converged. Therefore, the maximum viewing angle range of the first color light that can be seen in the second direction Y is θ12, where θ12 > θ1y, and by adjusting the first light-gathering structure 31b, θ12 can be made to be approximately equal to θ11.

[0049] In one possible implementation, the second structure 302 and the fourth structure 304 can be identical. In this case, the portion of the first diffusing structure 31a located within the first groove 3010 and the portion of the first converging structure 31b located within the second groove 3030 are the same structure. This results in a relatively simple film structure above the first light-emitting unit 11, reducing light loss and minimizing propagation anomalies of the first color light. In this case, the first structure 301 and the third structure 303 have different refractive indices, thus forming a diffusing structure and a converging structure with the second structure 302 and the fourth structure 304, respectively.

[0050] In one possible implementation, the first structure 301 and the third structure 303 are identical, so the first groove portion 3010 in the first diffusing structure 31a and the second groove portion 3030 in the first converging structure 31b are the same groove portion. Therefore, the groove portion in the first diffusing structure 31a and the groove portion in the first converging structure 31b can be fabricated simultaneously, reducing the difficulty of the process.

[0051] When the first light control unit 31 includes the first light-scattering structure 31a, one possible technical solution is as follows: Figure 2 , Figure 6 and Figure 7 As shown, the first edge L1 is located on the side of the light-shielding structure 21 facing the midpoint of the first light-emitting unit 11 in the first direction X. Specifically, the first edge L1 is the edge of the sidewall of the first groove portion 3010 near the light-emitting layer 10, such as... Figure 2 , Figure 6 and Figure 7 As shown, the sidewall of the first recess 3010 includes an upper edge and a lower edge, with the lower edge being closer to the light-emitting layer 10 than the upper edge. Therefore, Figure 2 , Figure 6 and Figure 7 The lower edge of the sidewall of the first groove portion 3010 shown is the first edge L1. In this technical solution, since the first edge L1 is located on the side of the light-shielding structure 21 facing the midpoint of the first light-emitting unit 11, at least a portion of the first light-diffusing structure 31a is closer to the first light-emitting unit 11 in the first direction X relative to the light-shielding structure 21, and at least a portion of the orthographic projection of the sidewall of the second groove portion 3030 on the light-emitting layer 10 is located on the side of the orthographic projection of the light-shielding structure 21 on the light-emitting layer 10 facing the first light-emitting unit 11. Therefore, the blocking effect of the light-shielding structure 21 on the first color light L1X emitted by the first light-emitting unit 11 at a large viewing angle in the first direction X is reduced. The probability that the first color light emitted by the first light-emitting unit 11 will be blocked and absorbed by the light-shielding structure 21 during its transmission to the position of the large viewing angle in the first direction X is greatly reduced, and at least a portion of these first color lights are received by the sidewall of the first groove portion 3010. Therefore, it can be ensured that at least a portion of the first color light L1X is captured and modulated by the first diffusing structure 31a of the first light control unit 31.

[0052] In some embodiments, the sidewall of the first recess 3010 can be as follows: Figure 2 , Figure 6 and Figure 7 The structure shown is vertically aligned, meaning that the sidewall of the first recess 3010 is parallel to the direction perpendicular to the plane where the display panel 01 is located.

[0053] Figure 10 This is a schematic cross-sectional view of the first light-emitting unit along a first direction. Figure 11This is a cross-sectional schematic diagram of the first light-emitting unit along a first direction.

[0054] In some embodiments, the first groove portion 3010 can have a structure that is narrow at the bottom and wide at the top, such as... Figure 10 and Figure 11 As shown, the edge of the sidewall of the first recess 3010 near the light-emitting layer 10 is closer to the center of the first light-emitting unit 11 than the edge of the sidewall of the first recess 3010 away from the light-emitting layer 10. For example, Figure 10 and Figure 11 In the first groove portion 3010, the lower edge of the sidewall is close to the light-emitting layer 10 and the upper edge is far away from the light-emitting layer 10, and the lower edge of the first groove portion 3010 is closer to the center of the first light-emitting unit 11 than its upper edge.

[0055] When the first light control unit 31 includes the first light-scattering structure 31a, one possible technical solution is as follows: Figure 2 , Figure 6 , Figure 7 , Figure 10 As shown, along the first direction X, the sidewall of the first recess 3010 of the first light control unit 31 is located on the side of the light-shielding structure 21 surrounding the first light-emitting unit 11 facing the midpoint of the first light-emitting unit 11. When the first recess 3010 has a structure that is narrow at the bottom and wide at the top, as shown... Figure 10 As shown, the edge (lower edge, i.e., the first edge L1) of the sidewall of the first groove portion 3010 near the light-emitting layer 10 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the first direction X. The edge (upper edge) of the sidewall of the first groove portion 3010 away from the light-emitting layer 10 is also located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the first direction X. The orthographic projection of the sidewall of the first groove portion 3010 on the shielding layer is completely located on the inner side of the light-shielding structure 21 facing the first light-emitting unit 11. That is, the light-shielding structure 21 surrounding the first light-emitting unit 11 surrounds the orthographic projection of the first light-emitting unit 11 on the shielding layer, and also surrounds the orthographic projection of the first groove portion 3010 on the shielding layer. Therefore, the first light-diffusing structure 31a of the first light control unit 31 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the first direction X. In this technical solution, the probability that the first color light L1X emitted by the first light-emitting unit 11 and propagating at a large angle in the first direction X is blocked and absorbed by the light-shielding structure 21 is further reduced, and the amount of light that can be received by the sidewall of the first groove portion 3010 is increased. Therefore, it can be ensured that more first color light is captured and modulated by the first light-diffusing structure 31a.

[0056] When the first groove portion 3010 has a structure that is narrow at the bottom and wide at the top, in one feasible technical solution, such as Figure 11As shown, the edge (lower edge, i.e., the first edge L1) of the sidewall of the first recess 3010 near the light-emitting layer 10 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the first direction X. The edge (upper edge) of the sidewall of the first recess 3010 away from the light-emitting layer 10 overlaps with the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01. Alternatively, the edge (upper edge) of the sidewall of the first recess 3010 away from the light-emitting layer 10 is located on the side of the light-shielding structure 21 away from the first light-emitting unit 11 in the first direction X. The portion of the orthographic projection of the sidewall of the first recess 3010 onto the shielding layer is located inside the light-shielding structure 21 facing the first light-emitting unit 11. Therefore, a portion of the first light-diffusing structure 31a of the first light control unit 31 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the first direction X. This technical solution allows the first light-diffusing structure 31a to capture more first color light; in addition, this technical solution can minimize the increase in the distance between the light-shielding structure 21 and the first light-emitting unit 11 in the first direction X due to the sidewall setting of the first groove portion 3010, and avoid affecting the resolution design of the display panel 01.

[0057] When the first light control unit 31 includes the first light-scattering structure 31a, one possible technical solution is as follows: Figure 2 , Figure 6 , Figure 7 , Figure 10 and Figure 11 As shown, the first edge L1 is located between the light-shielding structure 21 and the first light-emitting unit 11 in the first direction X. In this technical solution, the sidewall of the first recess 3010 in the first light control unit 31 can be non-overlapping with the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01. This avoids the influence of the first light control unit 31 on the first color light under a normal viewing angle, and ensures that the first color light is emitted normally under a normal viewing angle.

[0058] Figure 12 This is a cross-sectional schematic diagram of the first light-emitting unit along a first direction.

[0059] When the first light control unit 31 includes the first light-scattering structure 31a, one possible technical solution is as follows: Figure 12As shown, the first edge L1 partially overlaps with the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01. Therefore, the sidewall of the first recess 3010 in the first light control unit 31 partially overlaps with the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01. This allows the first light-diffusing structure 31a to receive more first-color light and modulate it. Furthermore, when at least a portion of the sidewall of the first recess 3010 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11, the distance between the light-shielding structure 21 and the first light-emitting unit 11 in the first direction X does not need to be too large, which is beneficial for achieving high resolution of the display panel.

[0060] It should be noted that, although Figure 12 The first recessed portion 3010 shown is narrow at the bottom and wide at the top, but this technical solution can also be applied to the case where the sidewall of the first recessed portion 3010 is parallel to the direction perpendicular to the plane where the display panel 01 is located; although Figure 12 The upper edge of the sidewall of the first recess 3010 shown overlaps with the light-shielding structure 21 in a direction perpendicular to the plane of the display panel 01. However, this technical solution can also be applied to the case where the upper edge of the sidewall of the first recess 3010 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the first direction X, or to the case where the upper edge of the sidewall of the first recess 3010 is located on the side of the light-shielding structure 21 away from the first light-emitting unit 11 in the first direction X.

[0061] When the first light control unit 31 includes the first light-gathering structure 31b, one possible technical solution is as follows: Figure 8 and Figure 9 As shown, the second edge L2 is located on the side of the light-shielding structure 21 facing the midpoint of the first light-emitting unit 11 in the second direction Y. Specifically, the second edge L2 is the edge of the sidewall of the second groove portion 3030 near the light-emitting layer 10, such as... Figure 8 and Figure 9 As shown, the sidewall of the second recess 3030 includes an upper edge and a lower edge, with the lower edge being closer to the light-emitting layer 10 than the upper edge. Therefore, Figure 8 and Figure 9The lower edge of the sidewall of the second groove portion 3030 shown is the second edge L2. In this technical solution, since the second edge L2 is located on the side of the light-shielding structure 21 facing the midpoint of the first light-emitting unit 11, at least a portion of the first light-gathering structure 31b is closer to the first light-emitting unit 11 in the second direction Y relative to the light-shielding structure 21, and at least a portion of the orthogonal projection of the sidewall of the second groove portion 3030 on the light-emitting layer 10 is located on the side of the orthogonal projection of the light-shielding structure 21 on the light-emitting layer 10 facing the first light-emitting unit 11. Therefore, the blocking effect of the light-shielding structure 21 on the first color light L1Y emitted by the first light-emitting unit 11 at a large viewing angle in the second direction Y is reduced. The probability that the first color light emitted by the first light-emitting unit 11 will be blocked and absorbed by the light-shielding structure 21 during its transmission to the position of the large viewing angle in the second direction Y is greatly reduced, and at least a portion of these first color lights are received by the sidewall of the second groove portion 3030. Therefore, it can be ensured that at least a portion of the first color light L1Y is captured and modulated by the first light-gathering structure 31b of the first light control unit 31.

[0062] In some embodiments, the sidewall of the second recess 3030 can be as follows: Figure 8 and Figure 9 The structure shown is vertically aligned, meaning that the sidewall of the second recess 3030 is parallel to the direction perpendicular to the plane where the display panel 01 is located.

[0063] Figure 13 This is a schematic cross-sectional view of the second light-emitting unit along the second direction. Figure 14 This is a schematic cross-sectional view of the second light-emitting unit along the second direction.

[0064] In some embodiments, the second groove portion 3030 can have a structure that is narrow at the bottom and wide at the top, such as... Figure 13 and Figure 14 As shown, the edge of the sidewall of the second recess 3030 near the light-emitting layer 10 is closer to the center of the first light-emitting unit 11 than the edge of the sidewall of the second recess 3030 away from the light-emitting layer 10. For example, Figure 13 and Figure 14 In the second groove portion 3030, the lower edge of the sidewall is close to the light-emitting layer 10 and the upper edge is far away from the light-emitting layer 10, and the lower edge of the second groove portion 3030 is closer to the center of the first light-emitting unit 11 than its upper edge.

[0065] When the first light control unit 31 includes the first light-gathering structure 31b, one possible technical solution is as follows: Figure 8 , Figure 9 , Figure 13As shown, along the second direction Y, the sidewall of the second recess 3030 of the first light control unit 31 is located on the side of the light-shielding structure 21 surrounding the first light-emitting unit 11 facing the midpoint of the first light-emitting unit 11. When the second recess 3030 has a structure that is narrow at the bottom and wide at the top, as shown... Figure 13 As shown, the edge (lower edge, i.e., the second edge L2) of the sidewall of the second groove portion 3030 near the light-emitting layer 10 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the second direction Y. The edge (upper edge) of the sidewall of the second groove portion 3030 away from the light-emitting layer 10 is also located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the second direction Y. The orthographic projection of the sidewall of the second groove portion 3030 on the shielding layer is completely located on the inner side of the light-shielding structure 21 facing the first light-emitting unit 11. That is, the light-shielding structure 21 surrounding the first light-emitting unit 11 surrounds the orthographic projection of the first light-emitting unit 11 on the shielding layer, and also surrounds the orthographic projection of the second groove portion 3020 on the shielding layer. Therefore, the first light-gathering structure 31b of the first light control unit 31 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the second direction Y. In this technical solution, the probability that the first color light L1Y emitted by the first light-emitting unit 11 and propagating at a large angle in the second direction Y is blocked and absorbed by the light-shielding structure 21 is further reduced, and the amount of light that can be received by the sidewall of the second groove portion 3030 is increased. Therefore, it can be ensured that more first color light is captured and modulated by the first light-gathering structure 31b.

[0066] When the second groove portion 3030 has a structure that is narrow at the bottom and wide at the top, in one feasible technical solution, such as Figure 14 As shown, the edge (lower edge, i.e., the second edge L2) of the sidewall of the second groove portion 3030 near the light-emitting layer 10 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the second direction Y. The edge (upper edge) of the sidewall of the second groove portion 3030 away from the light-emitting layer 10 overlaps with the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01. Alternatively, the edge (upper edge) of the sidewall of the second groove portion 3030 away from the light-emitting layer 10 is located on the side of the light-shielding structure 21 away from the first light-emitting unit 11 in the second direction Y. The portion of the sidewall of the first groove portion 3030 projected onto the shielding layer is located inside the light-shielding structure 21 facing the first light-emitting unit 11. Therefore, a portion of the first light-gathering structure 31b of the first light control unit 31 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the second direction Y. This technical solution enables the first light-gathering structure 31b to capture more first color light; in addition, this technical solution can minimize the increase in the distance between the light-shielding structure 21 and the first light-emitting unit 11 in the second direction X due to the sidewall setting of the second groove portion 3030, and avoid affecting the resolution design of the display panel 01.

[0067] Figure 15 This is a schematic cross-sectional view of the second light-emitting unit along the second direction.

[0068] When the first light control unit 31 includes the first light-gathering structure 31b, one possible technical solution is as follows: Figure 15 As shown, the second edge L2 overlaps with the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01. Therefore, the sidewall of the second recess 3030 in the first light control unit 31 partially overlaps with the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01. This allows the first light-gathering structure 31b to receive more first-color light and modulate it. Furthermore, when at least a portion of the sidewall of the second recess 3030 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11, the distance between the light-shielding structure 21 and the first light-emitting unit 11 in the second direction Y does not need to be too large, which is beneficial for achieving high resolution of the display panel 01.

[0069] Furthermore, in this technical solution, since the first light-emitting unit 11 has a relatively large length in the second direction Y, although the two edges of the first light-emitting unit 11 arranged along the second direction Y are covered by the sidewall of the second recess 3030 in the direction perpendicular to the plane where the display panel 01 is located, the influence of the first light-gathering structure 31b on the total light emitted by the first light-emitting unit 11 is relatively small. In one implementation, the first light control unit 31 includes both a first light-diffusing structure 31a and a first light-gathering structure 31b, the first edge L1 is located between the light-shielding structure 21 and the first light-emitting unit 11 in the first direction X, and the second edge L2 overlaps with the first light-emitting unit 11 in the direction perpendicular to the plane where the display panel 01 is located.

[0070] It should be noted that, although Figure 15 The second recess 3030 shown is narrow at the bottom and wide at the top, but this technical solution can also be applied to situations where the sidewall of the second recess 3030 is parallel to the direction perpendicular to the plane of the display panel 01; although Figure 15 The upper edge of the sidewall of the second recess 3030 shown overlaps with the light-shielding structure 21 in a direction perpendicular to the plane of the display panel 01. However, this technical solution can also be applied to the case where the upper edge of the sidewall of the second recess 3030 is located on the side of the light-shielding structure 21 facing the first light-emitting unit 11 in the second direction Y, or to the case where the upper edge of the sidewall of the second recess 3030 is located on the side of the light-shielding structure 21 away from the first light-emitting unit 11 in the second direction Y.

[0071] As described above, when the first light control unit 31 includes a first diffuser structure 31a, in order to achieve divergent modulation of light propagating at a large viewing angle in the first direction X, the first diffuser structure 31a extends along the second direction Y. The first diffuser structure 31a is mainly formed by relying on the sidewall of the first groove portion 3010. Therefore, as... Figure 1 and Figure 5 As shown, at least a portion of the sidewall of the first groove portion 3010 extends along the second direction Y. Here, "extending along the second direction Y" means that it extends generally along the second direction Y or extends entirely along the second direction Y, and does not mean that the sidewall of the first groove portion 3010 necessarily extends in a straight line.

[0072] In one embodiment, the extending direction of the sidewall of the first recess 3010 of the first light control unit 31 is parallel to the extending direction of the edge opposite to the first light-emitting unit 11 along the first direction X. That is, the sidewall of the first recess 3010 of the first light control unit 31 extends in the same direction as the edge opposite to the first light-emitting unit 11 along the first direction X. Therefore, the first recess 3010 will not affect the light at a large viewing angle in the second direction Y. In addition, this embodiment can minimize the area of ​​the first structure 301 and minimize the loss caused by the light being refracted and reflected multiple times in films with different refractive indices.

[0073] As described above, when the first light control unit 31 includes a first light-converging structure 31b, in order to achieve convergent modulation of light propagating at a large viewing angle in the second direction Y, the first light-converging structure 31b extends along the first direction X. The first light-converging structure 31b is mainly formed by relying on the sidewall of the second groove portion 3030. Therefore, as... Figure 4 and Figure 5 As shown, at least a portion of the sidewall of the second recess 3030 extends along the first direction X. Here, "extending along the first direction X" means that it extends generally along the first direction X or extends entirely along the first direction X, and does not mean that the sidewall of the second recess 3030 necessarily extends in a straight line.

[0074] In one embodiment, the extending direction of the sidewall of the second groove portion 3030 of the first light control unit 31 is parallel to the extending direction of the edge opposite to the first light-emitting unit 11 along the second direction Y. That is, the sidewall included in the second groove portion 3030 of the first light control unit 31 has the same extending direction as the edge opposite to the first light-emitting unit 11 along the second direction Y. Therefore, the second groove portion 3030 will not affect the light at a large viewing angle in the first direction X. In addition, this embodiment can minimize the area of ​​the third structure 303 and minimize the loss caused by the light being refracted and reflected multiple times in films with different refractive indices.

[0075] Figure 16This is a schematic diagram of a projection of the first light-emitting unit.

[0076] In one implementation, such as Figure 16 As shown, when the first light control unit 31 includes a first light-diffusing structure 31a, the first recessed portion 3010 of the first light control unit 31 includes a first sidewall SW1 opposite to the first direction X and a second sidewall SW2 opposite to the second direction Y. That is, the sidewalls of the first recessed portion 3010 can surround the first light-emitting unit 11, wherein the sidewalls of the first recessed portion 3010 can be a continuous structure. The distance between the second sidewall SW2 and the first light-emitting unit 11 in the second direction Y is greater than the distance between the first sidewall SW1 and the first light-emitting unit 11 in the first direction X. That is, the second sidewall SW2 of the first recessed portion 3010 located on the side of the first light-emitting unit 11 in the second direction Y is further away from the first light-emitting unit 11, so as to minimize the influence of the first color light emitted by the first light-emitting unit 11 on the first light-diffusing structure 31a at a large viewing angle in the second direction Y. In addition, the first recessed portion 3010 can be obtained by conventional exposure, development, and etching processes, and there are no special requirements for the shape of the mask and the positive and negative properties of the photoresist, making it easier to implement.

[0077] In one technical solution corresponding to this embodiment, such as Figure 16 As shown, the second sidewall SW2 overlaps with the light-shielding structure 21 in a direction perpendicular to the plane of the display panel 01, while the first sidewall SW2 does not overlap with the light-shielding structure 21 in a direction perpendicular to the plane of the display panel 01. That is, the second sidewall SW2 is closer to the light-shielding structure 21 and the first sidewall SW1 is closer to the first light-emitting unit 11, thereby further reducing the influence of the first color light emitted by the first light-emitting unit 11 on the first scattering structure 31a at a large viewing angle in the second direction Y.

[0078] Figure 17 This is a schematic diagram of a projection of the first light-emitting unit.

[0079] In one implementation, such as Figure 17As shown, when the first light control unit 31 includes the first light-gathering structure 31b, the second recessed portion 3030 of the first light control unit 31 includes a third sidewall SW3 opposite to the first light-gathering unit 11 along the first direction X and a fourth sidewall SW4 opposite to the first light-gathering unit 11 along the second direction Y. That is, the sidewalls of the second recessed portion 3030 can surround the first light-emitting unit 11, wherein the sidewalls of the second recessed portion 3030 can be a continuous structure. The distance between the third sidewall SW3 and the first light-emitting unit 11 in the first direction X is greater than the distance between the fourth sidewall SW4 and the first light-emitting unit 11 in the second direction Y. That is, the third sidewall SW3 of the second recessed portion 3030 located on the side of the first light-emitting unit 11 in the first direction X is further away from the first light-emitting unit 11, so as to minimize the influence of the first light-gathering structure 31b on the first color light emitted by the first light-emitting unit 11 at a large viewing angle in the first direction X. In addition, the second recessed portion 3030 can be obtained by conventional exposure, development, and etching processes, and there are no special requirements for the shape of the mask and the positive and negative properties of the photoresist, making it easier to implement.

[0080] In one technical solution corresponding to this embodiment, such as Figure 17 As shown, the fourth sidewall SW4 overlaps with the light-shielding structure 21 in a direction perpendicular to the plane of the display panel 01, while the third sidewall SW3 does not overlap with the light-shielding structure 21 in a direction perpendicular to the plane of the display panel 01. That is, the third sidewall SW3 is closer to the light-shielding structure 21 and the fourth sidewall SW4 is closer to the first light-emitting unit 11, thereby further reducing the influence of the first light-gathering structure 31b on the first color light emitted by the first light-emitting unit 11 at a large viewing angle in the first direction X.

[0081] As described above, the reason why the amount of light emitted by the first light-emitting unit 11 differs significantly at a large viewing angle in the first direction X and at a large viewing angle in the second direction Y is due to the significant difference in the width of the first light-emitting unit 11 in these two directions. However, for light-emitting units 100 with similar widths in different directions, this problem is not significant. Therefore, the light control unit 300 does not need to be provided above such light-emitting units 100.

[0082] like Figure 1As shown, the light-emitting layer 10 further includes a second light-emitting unit 12. The ratio of the width of the second light-emitting unit 12 along the second direction Y to its width along the first direction X is a2, while the ratio of the width of the first light-emitting unit 11 along the second direction Y to its width along the first direction X is a1. Wherein, |a2-1| < |a1-1|, that is, relative to the first light-emitting unit 11, the width of the second light-emitting unit 12 along the second direction Y is approximately the same as its width along the first direction X. In one embodiment of this application, in the direction perpendicular to the plane of the display panel 01, the second light-emitting unit 12 does not overlap with the light control unit 300, that is, the light control unit 300 does not need to be placed above the second light-emitting unit 12. The structure of the light control layer 30 is simple and easy to implement, and the brightness of the second light-emitting unit 12 at a large viewing angle in the first direction X and at a large viewing angle in the second direction Y is approximately the same.

[0083] Furthermore, the technical problem to be solved by the embodiments of this application includes the fact that the light intensity of the first color light in the first direction X attenuates differently at large viewing angles at different positions of the first light-emitting unit 11, resulting in color shift after mixing with the second color light at large viewing angles at different positions, wherein the second color is the light emitted by the second light-emitting unit 12. This solution does not provide a light control unit 300 above the second light-emitting unit 12, thus avoiding the need for the light control unit 300 to adjust the light intensity of the second color light at large viewing angles at different positions. Therefore, by using the brightness of the second light-emitting unit 12 as a standard to determine the adjustment scheme for the first color light, it is easier to obtain a more ideal specific structure for the first light control unit 31.

[0084] Figure 18 This is a schematic diagram of a projection of the third light-emitting unit. Figure 19 This is a schematic diagram of a projection of the third light-emitting unit. Figure 20 This is a schematic diagram of a projection of the third light-emitting unit.

[0085] The light-emitting layer 10 also includes a third light-emitting unit 13, the width of which along the first direction X is different from the width along the second direction Y, for example, as... Figure 1 and Figures 18 to 20 As shown, the width of the third light-emitting unit 13 along the first direction X is greater than its width along the second direction Y. Since the light-shielding structure 21 is located on the periphery of the light-emitting unit 100, the length of the portion extending along the first direction X in the light-shielding structure 21 surrounding the second light-emitting unit 12 is different from the length of the portion extending along the second direction Y. The blocking of the first color light by the light-shielding structure 21 causes different attenuations of the first color light in different directions, leading to color shift. Therefore, the blocking of the third color light by the light-shielding structure 21 will also cause this problem, where the third color light is the light emitted by the third light-emitting unit 13. It should be noted that... Figure 1 and Figures 18 to 20 The width of the third light-emitting unit 13 along the first direction X is greater than the width along the second direction Y. In some embodiments, the width of the third light-emitting unit 13 along the first direction X may also be less than the width along the second direction Y.

[0086] In this embodiment, as Figures 18 to 20 As shown, among the multiple light control units 300, there is a second light control unit 32. The second light control unit 32 overlaps with the second light-emitting unit 12 in a direction perpendicular to the plane of the display panel 01, that is, the second light control unit 32 is used to adjust the light path of the light emitted by the second light-emitting unit 12. The second light control unit 32 includes a second diffusing structure 32a and / or a second light-converging structure 32b. Figure 18 As shown, the second light control unit 32 only includes the second scattering structure 32a; as Figure 19 As shown, the second light control unit 32 includes only the second light-gathering structure 32b; as Figure 20 As shown, the first light control unit 31 is simultaneously the second light-scattering structure 32a and the second light-converging structure 32b.

[0087] like Figure 18 and Figure 20 As shown, the extension direction of the second scattering structure 32a is parallel to the direction corresponding to the larger of the first direction X and the second direction Y of the third light-emitting unit 13. Figure 18 and Figure 20 As shown, the width of the third light-emitting unit 13 in the first direction X is greater than its width in the second direction Y, so the extension direction of the second light-diffusing structure 32a is the same as that in the second direction Y. It can be understood that when the width of the third light-emitting unit 13 in the second direction Y is greater than its width in the first direction X, the extension direction of the second light-diffusing structure 32a is the same as that in the first direction X. Similar to the function of the first light-diffusing structure 31a, when the second light control unit 32 includes the second light-diffusing structure 32a, the viewing angle range that can receive the second color light in a specific direction can be expanded.

[0088] like Figure 19 and Figure 20 As shown, the extension direction of the second light-gathering structure 32b is parallel to the direction corresponding to the smaller width of the third light-emitting unit 13 in the first direction X and the second direction Y, respectively. Figure 19 and Figure 20As shown, the width of the third light-emitting unit 13 in the second direction Y is smaller than its width in the first direction X, so the extension direction of the second light-gathering structure 32b is the same as that in the first direction X. It can be understood that when the width of the third light-emitting unit 13 in the first direction X is greater than its width in the second direction Y, the extension direction of the second light-gathering structure 32b is the same as that in the second direction Y. Similar to the function of the first light-gathering structure 31b, when the second light control unit 32 includes the second light-gathering structure 32b, the viewing angle range that can receive the second color light in a specific direction can be narrowed.

[0089] It should be noted that the structure and position of the second astigmatism structure 32a can be similar to those of the first astigmatism structure 31a, and will not be described in detail here; the structure and position of the second light-converging structure 32b can be similar to those of the first light-converging structure 31b, and will not be described in detail here.

[0090] In one embodiment of this application, the ratio of the width of the first light-emitting unit 11 along the second direction Y to its width along the first direction X is a1, and the ratio of the larger of the width of the third light-emitting unit 13 along the second direction Y to its width along the first direction X to the smaller of the larger of the two is a3, where a3 ≠ a1. That is, the difference in width between the third light-emitting unit 13 in the first direction X and the second direction Y is different from the difference in width between the first light-emitting unit 11 in the first direction X and the second direction Y. Therefore, when the first light control unit 31 includes a first diffusing structure 31a and the second light control unit 32 includes a second diffusing structure 32a, the first diffusing structure 31a and the second diffusing structure 32a are different; and / or, when the first light control unit 31 includes a first converging structure 31b and the second light control unit 32 includes a second converging structure 32b, the first converging structure 31b and the second converging structure 32b are different.

[0091] For example, the relative position between the sidewall of the groove in the first scattering structure 31a and the first light-emitting unit 11 is different from the relative position between the sidewall of the groove in the second scattering structure 32a and the third light-emitting unit 13; for example, the refractive index difference between the groove in the first scattering structure 31a and the structure filling the groove is different from the refractive index difference between the groove in the second scattering structure 32a and the structure filling the groove, etc.

[0092] For example, the relative position between the sidewall of the groove in the first light-gathering structure 31b and the first light-emitting unit 11 is different from the relative position between the sidewall of the groove in the second light-gathering structure 32b and the third light-emitting unit 13; for example, the refractive index difference between the groove in the first light-gathering structure 31b and the structure filling the groove is different from the refractive index difference between the groove in the second light-gathering structure 32b and the structure filling the groove, etc.

[0093] In this embodiment, the light control unit 300 above the first light-emitting unit 11 and the light control unit 300 above the third light-emitting unit 13 are set to be different, so as to adapt to the difference in the amount of light of the first color light under different directions and large viewing angles and to adapt to the difference in the amount of light of the second color light under different directions and large viewing angles.

[0094] Figure 21a This is a schematic cross-sectional view of the first light-emitting unit along the second direction. Figure 21b This is a cross-sectional schematic diagram of the first light-emitting unit along a first direction.

[0095] In one embodiment of this application, combined with Figure 21a and Figure 21b The light-shielding structure 21 includes a first part 21a and a second part 21b. The first part 21a is adjacent to the first light-emitting unit 11 in the first direction X, and the second part 21b is adjacent to the first light-emitting unit 11 in the second direction Y. The orthographic projection of the first part 21a in the light-shielding structure 21 onto the light-emitting layer 10 can be arranged and adjacent to the first light-emitting unit 11 in the first direction X, and the orthographic projection of the second part 21b in the light-shielding structure 21 onto the light-emitting layer 10 can be arranged and adjacent to the first light-emitting unit 11 in the second direction Y.

[0096] Along a direction perpendicular to the plane of the display panel 01, the distance between the surface of the first portion 21a away from the light-emitting layer 10 and the light-emitting layer 10 is smaller than the distance between the surface of the second portion away from the light-emitting layer 10 and the light-emitting layer 10. For example, combined with Figure 21a and Figure 21b In the first part 21a, the surface furthest from the light-emitting layer 10 is at a distance H1 from the light-emitting layer 10 in a direction perpendicular to the plane of the display panel 01. In the second part 21b, the surface furthest from the light-emitting layer 10 is at a distance H2 from the light-emitting layer 10 in a direction perpendicular to the plane of the display panel 01, where H1 is less than H2. Compared to the surface furthest from the light-emitting layer 10 in the first part 21a, the surface furthest from the light-emitting layer 10 in the second part 21b is farther away. Therefore, the second part 21b has a better blocking effect on the first color light L1Y at a large viewing angle, and plays a relatively larger convergence role on the first color light L1Y incident on the second direction Y at a large viewing angle. Compared to the surface furthest from the light-emitting layer 10 in the second part 21b, the surface furthest from the light-emitting layer 10 in the first part 21a is closer to the light-emitting layer 10. Therefore, the blocking effect of the first part 21a on large-angle light is limited, minimizing the blocking effect of the light-shielding structure 21 on the first color light L1X incident on the first direction X at a large viewing angle.

[0097] In one feasible technical solution, the distance between the first part 21a and the light-emitting layer 10 in a direction perpendicular to the plane of the display panel 01 is smaller than the distance between the second part 21b and the light-emitting layer 10 in a direction perpendicular to the plane of the display panel 01. For example, combined with Figure 21a and Figure 21b The distance between the first part 21a and the light-emitting layer 10 in the direction perpendicular to the plane of the display panel 01 is H3, and the distance between the second part 21b and the light-emitting layer 10 in the direction perpendicular to the plane of the display panel 01 is H4, where H3 < H4. In this technical solution, by adjusting the positions of the first part 21a and / or the second part 21b in the direction perpendicular to the plane of the display panel 01, the difference in the viewing angle of the first color light under large viewing angles in the first direction X and the second direction Y is reduced.

[0098] In one possible implementation, such as Figure 21b As shown, the first part 21a can be recessed in the direction of the light-emitting layer 10. For example, a groove can be made on the film layer that supports the light-shielding structure 21 and at least a portion of the first part 21a can be disposed in the groove.

[0099] Figure 22a This is a schematic cross-sectional view of the first light-emitting unit along the second direction. Figure 22b This is a cross-sectional schematic diagram of the first light-emitting unit along a first direction.

[0100] In one feasible approach, combining Figure 22a and Figure 22b The second part 21b can be raised in the direction of the light control layer 30. For example, a protrusion can be made on the film layer that carries the light-shielding structure 21 and at least a portion of the second part 21b can be disposed on the protrusion.

[0101] Figure 23a This is a schematic cross-sectional view of the first light-emitting unit along the second direction. Figure 23b This is a cross-sectional schematic diagram of the first light-emitting unit along a first direction.

[0102] In a feasible technical solution, combining Figure 23a and Figure 23b The second part 21b may include a first sub-part 21b1 and a second sub-part 21b2 overlapping in a direction perpendicular to the plane of the display panel 01, wherein the first sub-part 21b1 and the second sub-part 21b2 are located in different film layers. In this technical solution, the height of the second part 21b is increased by increasing the number of film layers, thereby increasing the distance between the surface of the second part 21b away from the light-emitting layer 10 and the first light-emitting unit 11 in a direction perpendicular to the plane of the display panel 01.

[0103] Figure 24 This is a schematic diagram of a display panel provided in an embodiment of this application.

[0104] In one embodiment of this application, such as Figure 24 As shown, the display panel 01 includes a grid-like touch electrode TP, wherein the touch electrode TP may include interconnected conductive lines and the conductive lines are disposed between the areas where the light-emitting units 100 are located. Therefore, the conductive lines in the touch electrode TP can serve as a light-shielding structure 21, that is, the light-shielding structure 21 is reused as at least a part of the touch electrode TP. The technical solution provided by the embodiments of this application can improve the problem of color shift at certain viewing angles caused by the inclusion of a grid-like touch electrode TP in the display panel 01.

[0105] Figure 25 This is a schematic diagram of a display panel provided in an embodiment of this application.

[0106] In one embodiment of this application, such as Figure 1 , Figure 24 and Figure 25 As shown, along a direction perpendicular to the plane of the display panel, the first light control unit 31 overlaps with at least two first light-emitting units 11 arranged adjacent to each other along the second direction Y. This reduces the fabrication difficulty of the first light control unit 31.

[0107] like Figure 1 and Figure 24 As shown, the first light-emitting units 11 arranged along the second direction Y are arranged adjacent to each other, that is, a pixel column including the first light-emitting units 11 may only include the first light-emitting units 11. In this case, a first light control unit 31 can overlap with each of the first light-emitting units 11 in the pixel column at the same time. When the first light control unit 31 includes a first light-diffusing structure 31a, the first groove portion 3010 in the first light-diffusing structure 31a can overlap with each of the first light-emitting units 11 in the pixel column, thereby reducing the fabrication difficulty and process precision requirements of the first groove portion 3010.

[0108] like Figure 25 As shown, each pixel column may include a first light-emitting unit 11, and two first light-emitting units 11 form a first unit group. Each pixel column may include a first unit group, and a first light control unit 31 may overlap with each first light-emitting unit 11 in the first unit group at the same time.

[0109] Figure 26 This is a schematic diagram of a display device provided in an embodiment of this application.

[0110] like Figure 26 As shown, this application embodiment also provides a display device 001, including the display panel 01 provided in any of the above embodiments. Of course, Figure 26 The display device 001 shown is for illustrative purposes only. The display device 001 can be any electronic device with display function, such as a mobile phone, tablet computer, laptop computer, e-reader, television, or video wall display device.

[0111] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A display panel, characterized in that, include: The light-emitting layer includes a plurality of light-emitting units, among which a first light-emitting unit is included. The width of the first light-emitting unit along a first direction is smaller than its width along a second direction. The first direction and the second direction intersect and are both parallel to the plane on which the display panel is located. A shielding layer is located on the side of the light-emitting layer facing the light-emitting surface of the display panel. The shielding layer includes a light-shielding structure, which is located around the light-emitting unit. A light control layer is located on the side of the shielding layer opposite to the light-emitting layer, and the light control layer includes multiple light control units; The plurality of light control units include a first light control unit, which overlaps with the first light-emitting unit in a direction perpendicular to the plane of the display panel; the first light control unit includes a first light-diffusing structure and / or a first light-converging structure, the first light-diffusing structure extending in the second direction and the first light-converging structure extending in the first direction.

2. The display panel according to claim 1, characterized in that, The ratio of the width of the first light-emitting unit along the second direction to its width along the first direction is a1; The light-emitting layer further includes a second light-emitting unit, wherein the ratio of the width of the second light-emitting unit along the second direction to the width along the first direction is a2, and |a2-1| < |a1-1|. Wherein, along the direction perpendicular to the plane where the display panel is located, the second light-emitting unit and the light control unit do not overlap.

3. The display panel according to claim 1, characterized in that, The light-emitting layer further includes a third light-emitting unit; the width of the third light-emitting unit along the first direction is different from its width along the second direction; The plurality of light control units includes a second light control unit, which overlaps with the second light-emitting unit in a direction perpendicular to the plane of the display panel. The second light control unit includes a second diffused light structure and / or a second converged light structure. The extension direction of the second diffused light structure is parallel to the direction corresponding to the larger of the width of the third light-emitting unit in the first direction and the second direction, respectively. The extension direction of the second converged light structure is parallel to the direction corresponding to the smaller of the width of the third light-emitting unit in the first direction and the second direction, respectively.

4. The display panel according to claim 3, characterized in that, The ratio of the width of the first light-emitting unit along the second direction to its width along the first direction is a1; the ratio of the larger of the width of the third light-emitting unit along the second direction to its width along the first direction to the smaller of the smaller of the two is a3, and a3 ≠ a1; wherein the first light-scattering structure is different from the second light-scattering structure, and / or the first light-converging structure is different from the second light-converging structure.

5. The display panel according to claim 1, characterized in that, The light control unit includes a first structure and a second structure, wherein the refractive index of the first structure is greater than that of the second structure; the first structure includes a first groove portion and at least part of the second structure is filled in the first groove portion, wherein the first groove portion overlaps with the light-emitting unit in a direction perpendicular to the plane of the display panel; Wherein, the first edge is located on the side of the light-shielding structure facing the midpoint of the first light-emitting unit in the first direction; the first edge is the edge of the sidewall of the first groove portion near the light-emitting layer.

6. The display panel according to claim 5, characterized in that, Along the first direction, the sidewall of the first groove portion in the first light control unit is located on the side of the light-shielding structure surrounding the first light-emitting unit facing the midpoint of the first light-emitting unit.

7. The display panel according to claim 5 or 6, characterized in that, The first edge is located between the light-shielding structure and the first light-emitting unit in the first direction.

8. The display panel according to claim 5, characterized in that, The extension direction of the sidewall of the first groove portion of the first light control unit is parallel to the extension direction of the edge opposite to the first direction in the first light-emitting unit.

9. The display panel according to claim 5, characterized in that, The first recess of the first light control unit includes a first sidewall opposite to each other along the first direction and a second sidewall opposite to each other along the second direction; The distance between the second sidewall and the first light-emitting unit in the second direction is greater than the distance between the first sidewall and the first light-emitting unit in the first direction.

10. The display panel according to claim 9, characterized in that, The second sidewall overlaps with the light-shielding structure in a direction perpendicular to the plane of the display panel, while the first sidewall does not overlap with the light-shielding structure in a direction perpendicular to the plane of the display panel.

11. The display panel according to claim 1, characterized in that, The light control unit includes a third structure and a fourth structure, wherein the refractive index of the third structure is less than that of the fourth structure; the third structure includes a second groove portion and at least part of the fourth structure is filled in the second groove portion, wherein the second groove portion overlaps with the light-emitting unit in a direction perpendicular to the plane of the display panel; Wherein, the second edge is located on the side of the light-shielding structure facing the midpoint of the first light-emitting unit in the second direction, and the second edge is the edge of the sidewall of the second groove near the light-emitting layer.

12. The display panel according to claim 11, characterized in that, Along the second direction, the sidewall of the second groove portion of the first light control unit is located on the side of the light-shielding structure surrounding the first light-emitting unit facing the midpoint of the first light-emitting unit.

13. The display panel according to claim 11 or 12, characterized in that, The second edge overlaps with the first light-emitting unit in a direction perpendicular to the plane of the display panel.

14. The display panel according to claim 11, characterized in that, The extension direction of the sidewall of the second groove of the first light control unit is parallel to the extension direction of the edge opposite to the second direction in the first light-emitting unit.

15. The display panel according to claim 11, characterized in that, The second recess of the first light control unit includes a third sidewall opposite to each other along the first direction and a fourth sidewall opposite to each other along the second direction; The distance between the third sidewall and the first light-emitting unit in the first direction is greater than the distance between the fourth sidewall and the first light-emitting unit in the second direction.

16. The display panel according to claim 15, characterized in that, The fourth sidewall overlaps with the light-shielding structure in a direction perpendicular to the plane of the display panel, while the third sidewall does not overlap with the light-shielding structure in a direction perpendicular to the plane of the display panel.

17. The display panel according to claim 1, characterized in that, The light-shielding structure includes a first part and a second part, wherein the first part is adjacent to the first light-emitting unit in the first direction, and the second part is adjacent to the first light-emitting unit in the second direction; Along a direction perpendicular to the plane of the display panel, the distance between the first portion of the surface away from the light-emitting layer and the light-emitting layer is less than the distance between the second portion of the surface away from the light-emitting layer and the light-emitting layer.

18. The display panel according to claim 17, characterized in that, The distance between the first part and the light-emitting layer in a direction perpendicular to the plane of the display panel is less than the distance between the second part and the light-emitting layer in a direction perpendicular to the plane of the display panel.

19. The display panel according to claim 17, characterized in that, The second part includes a first sub-part and a second sub-part that overlap in a direction perpendicular to the plane of the display panel, wherein the first sub-part and the second sub-part are located in different film layers.

20. The display panel according to claim 1, characterized in that, Along a direction perpendicular to the plane of the display panel, the first light control unit overlaps with at least two first light-emitting units arranged adjacent to each other along the second direction.

21. The display panel according to claim 1, characterized in that, The display panel includes a grid-like touch electrode, and the light-shielding structure is reused as at least a portion of the touch electrode.

22. A display device, characterized in that, Includes the display panel as described in any one of claims 1-21.

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