Display panel and display device

Abstract

A display panel (20) and a display device are disclosed. The display panel (20) includes a substrate (21), a plurality of light-emitting units (22), an optical adjustment pattern (23), and a first planarization layer (24). A first protrusion structure (231) in the optical adjustment pattern (23) may be located in the light-emitting direction of at least one light-emitting unit (22). The optical adjustment pattern (23) can increase the light emission angle of at least a portion of the light emitted by the light-emitting unit (22), thereby improving the uniformity of brightness of the light-emitting unit (22) at different light emission angles and ultimately enhancing the display effect of the display panel.

Description

Technical Field

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

[0002] Active matrix organic light-emitting diodes (AMOLEDs) are increasingly being used in high-performance display fields due to their low power consumption, self-emissive nature, high color saturation, fast response, wide viewing angle, and flexibility.

[0003] Currently, display panels consist of a substrate and multiple light-emitting units located on the substrate. These light-emitting units can emit light of various colors, enabling the display panel to display color images. The brightness of the light emitted by the light-emitting units in the display panel gradually decreases as the light emission angle increases.

[0004] The display panel described above has a poor display quality. Summary of the Invention

[0005] This application provides a display panel and a display device. The technical solution is as follows: According to a first aspect of this application, a display panel is provided, the display panel comprising: substrate; Multiple light-emitting units are located on the substrate; An optical adjustment pattern is located on the side of the light-emitting unit away from the substrate. The optical adjustment pattern includes a first protrusion structure corresponding to at least one of the plurality of light-emitting units. The orthographic projection of the first protrusion structure on the substrate overlaps with the orthographic projection of the corresponding light-emitting unit on the substrate, and the area of ​​the overlapping area is smaller than the area of ​​the orthographic projection of the light-emitting unit on the substrate. A first planarization layer is located on the side of the optical adjustment pattern away from the light-emitting unit, and the refractive index of the first planarization layer is greater than the refractive index of the optical adjustment pattern.

[0006] Optionally, the light-emitting unit includes at least two types of light-emitting units, and the first protrusion structure includes at least one sub-protrusion; The at least two light-emitting units include a first color light-emitting unit and a second color light-emitting unit. The sub-protrusion parameters of the first protrusion structure corresponding to the first color light-emitting unit and the sub-protrusion parameters of the first protrusion structure corresponding to the second color light-emitting unit are different. The sub-protrusion parameters include at least one of the number and size of the sub-protrusions.

[0007] Optionally, in at least one direction parallel to the substrate, the attenuation parameter of the first color light-emitting unit is less than the attenuation parameter of the second color light-emitting unit, wherein the attenuation parameter is the ratio of the brightness of the light-emitting unit at a specified light emission angle to the maximum brightness of the light-emitting unit in at least one direction parallel to the substrate. The number of sub-protrusions in the first protrusion structure corresponding to the first color light-emitting unit is greater than the number of sub-protrusions in the first protrusion structure corresponding to the second color light-emitting unit.

[0008] Optionally, in at least one direction parallel to the substrate, the attenuation parameter of the first color light-emitting unit is less than the attenuation parameter of the second color light-emitting unit, wherein the attenuation parameter is the ratio of the brightness of the light-emitting unit at a specified light emission angle to the maximum brightness of the light-emitting unit in at least one direction parallel to the substrate. At least one sub-protrusion in the first protrusion structure is a strip-shaped protrusion, and the length of the strip-shaped protrusion corresponding to the first color light-emitting unit is greater than the length of the strip-shaped protrusion corresponding to the second color light-emitting unit.

[0009] Optionally, the plurality of light-emitting units includes at least one target light-emitting unit, wherein the attenuation parameter of the target light-emitting unit in a first direction is less than the attenuation parameter in a second direction, the first direction and the second direction are parallel to the substrate, and the first direction is perpendicular to the second direction, and the attenuation parameter is the ratio of the brightness of the light-emitting unit at a specified light emission angle to the maximum brightness of the light-emitting unit in at least one direction parallel to the substrate. The first protrusion structure includes at least one sub-protrusion, and the at least one sub-protrusion in the first protrusion structure is a strip-shaped protrusion. The length direction of the strip-shaped protrusion corresponding to the target light-emitting unit is parallel to the second direction.

[0010] Optionally, the first protrusion structure includes a plurality of sub-protrusions, wherein the sub-protrusions are strip-shaped protrusions and there is an included angle between the length directions of the plurality of strip-shaped protrusions.

[0011] Optionally, the first protrusion structure includes a plurality of sub-protrusions, wherein the sub-protrusions are strip-shaped protrusions, the length directions of the plurality of strip-shaped protrusions are parallel, and there is a gap between the plurality of strip-shaped protrusions.

[0012] Optionally, the first protrusion structure includes at least one sub-protrusion, wherein the at least one sub-protrusion in the first protrusion structure is a block protrusion, and the edge of the orthographic projection of the block protrusion on the substrate is spaced apart from the edge of the orthographic projection of the corresponding light-emitting unit on the substrate.

[0013] Optionally, the display panel further includes a pixel defining layer located on the side of the optical adjustment pattern facing the substrate, the pixel defining layer having a plurality of pixel openings, and the light-emitting unit located in the pixel openings; The optical adjustment pattern further includes a second protrusion structure having a plurality of first openings, wherein the orthographic projection of the pixel opening on the substrate is located in the orthographic projection of the first opening on the substrate, and the orthographic projection of the first protrusion structure on the substrate is located in the orthographic projection of the first opening on the substrate.

[0014] Optionally, the first protrusion structure and the second protrusion structure are in the same layer and are formed by the same patterning process.

[0015] Optionally, the first protrusion structure includes at least one sub-protrusion, the sub-protrusion being a strip-shaped protrusion, the two ends of which are connected to the second protrusion structure.

[0016] Optionally, the first protrusion structure includes at least one sub-protrusion, the sub-protrusion being a strip-shaped protrusion, the orthographic projection of the strip-shaped protrusion on the substrate contacting two opposite edges of the orthographic projection of the pixel opening on the substrate along a third direction, the third direction being the length direction of the strip-shaped protrusion.

[0017] Optionally, the center of the orthographic projection of the first protrusion structure on the substrate coincides with the center of the orthographic projection of the corresponding light-emitting unit on the substrate.

[0018] Optionally, the center of the orthographic projection of the first protrusion structure on the substrate is located in a specified direction at the center of the orthographic projection of the corresponding light-emitting unit on the substrate.

[0019] Optionally, the first protrusion structure includes at least one sub-protrusion, the sub-protrusion having a top surface, a bottom surface, and a side surface connecting the bottom surface and the top surface, the side surface having an acute angle with the bottom surface.

[0020] Optionally, the acute angle ranges from 60° to 90°.

[0021] Optionally, the first protrusion structure includes at least one sub-protrusion, the thickness of which is greater than or equal to 4 micrometers; The sub-protrusion is a strip-shaped protrusion, and the width of the strip-shaped protrusion in the direction parallel to the substrate ranges from 5 micrometers to 10 micrometers. Alternatively, the sub-protrusion may be a block protrusion, the size of which in the direction parallel to the substrate ranges from 5 micrometers to 10 micrometers.

[0022] Optionally, the display panel further includes an organic encapsulation layer located on the side of the first planarization layer and the optical adjustment pattern away from the substrate; The first planarization layer has a third protrusion structure. The orthographic projection of the light-emitting unit on the substrate and the orthographic projection of the optical adjustment pattern on the substrate are both located in the orthographic projection of the third protrusion structure on the substrate. The refractive index of the third protrusion structure is greater than the refractive index of the organic encapsulation layer.

[0023] According to another aspect of this application, a display device is provided, the display device comprising: a power supply component, and the aforementioned display panel, the power supply component being used to supply power to the display panel.

[0024] The beneficial effects of the technical solutions provided in this application include at least the following: A display panel is provided, comprising: a substrate, a plurality of light-emitting units, an optical adjustment pattern, and a first planarization layer. The first protrusion structure in the optical adjustment pattern may be located in the light emission direction of at least one of the light-emitting units. The optical adjustment pattern can increase the emission angle of at least a portion of the light emitted by the light-emitting unit, thereby improving the uniformity of brightness of the light-emitting unit at different emission angles and thus enhancing the display effect of the display panel. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0026] Figure 1 This is a schematic diagram of the structure of a display panel; Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the display panel along the A1-A2 position. Figure 3 yes Figure 1 The color trajectory diagram of the display panel shown; Figure 4 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application; Figure 5 yes Figure 4 The diagram shows a cross-sectional structure of the display panel along the B1-B2 position. Figure 6 yes Figure 5 The diagram shows the optical path of the display panel. Figure 7 yes Figure 4 The color trajectory diagram of the display panel shown; Figure 8 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 9 yes Figure 8 The diagram shows a cross-sectional structure of the display panel along the C1-C2 position. Figure 10 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 11 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 12 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 13 yes Figure 12 The diagram shows a cross-sectional structure of the display panel along the D1-D2 position. Figure 14 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 15 yes Figure 14 The diagram shows a cross-sectional structure of the display panel along the E1-E2 position. Figure 16 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 17 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 18 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 19 yes Figure 18 The diagram shows a cross-sectional structure of the display panel along the G1-G2 position. Figure 20 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 21 yes Figure 20 The diagram shows a cross-sectional structure of the display panel along the H1-H2 position. Figure 22 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 23 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 24 This is a schematic diagram of another display panel structure provided in an embodiment of this application; Figure 25 yes Figure 24The diagram shows a cross-sectional structure of the display panel along the J1-J2 position. Figure 26 This is a schematic diagram of another display panel structure provided in an embodiment of this application.

[0027] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the structure of a display panel. Figure 2 yes Figure 1 The diagram shown is a cross-sectional view of the display panel along the A1-A2 position. Figure 3 yes Figure 1 The color trajectory diagram of the display panel is shown. The display panel 10 includes: a substrate 11, a pixel defining layer 12, a plurality of light-emitting units 13, and an encapsulation layer 14. The substrate 11 includes pixel driving circuitry for driving the light-emitting units, and the side of the encapsulation layer 14 away from the light-emitting units 13 may also have a touch layer.

[0030] Multiple light-emitting units 13 may include red light-emitting units for emitting red light, green light-emitting units for emitting green light, and blue light-emitting units for emitting blue light. That is, each pixel on the display panel 10 is composed of red light-emitting units for emitting red light, green light-emitting units for emitting green light, and blue light-emitting units for emitting blue light, so that the color displayed by each pixel is formed by mixing the three primary colors of red, green, and blue light, thereby enabling the display panel 10 to display a color image. Because the microcavity structure, shape, and size of the light-emitting units of different colors are different, at least some light-emitting units exhibit significant brightness variations with changes in the light emission angle. Typically, as the light emission angle increases, the brightness of the light-emitting unit gradually decreases, resulting in a significantly dimmer brightness at a larger light emission angle compared to a smaller light emission angle. Furthermore, the brightness changes of the light emitted by different colored light-emitting units are inconsistent with increasing light emission angle, leading to color shift problems in the display panel.

[0031] in, Figure 3This diagram illustrates the color shift trajectory z1 of the actual color displayed by display panel 10 in the CIE (Commission Internationale de l'Eclairage) chromaticity diagram, as the viewing angle varies when displaying a white image. The horizontal axis Wx and vertical axis Wy of the color trajectory diagram represent the chromaticity values, respectively. Curve z1 represents the color trajectory change trend from 0° to 90° along a direction parallel to the substrate of display panel 10, at the light emission angle of display panel 10 (i.e., the viewer's viewing angle). Figure 3 As can be seen, as the light emission angle increases, the color of the displayed image on the display panel 10 first becomes pink (from 0° to 30°), then blue (from 30° to 45°), and finally cyan (from 45° to 90°). Specifically, when the brightness change of a certain type of light-emitting unit in the display panel is greater than that of other light-emitting units as the light emission angle increases, the display panel will exhibit a cyan or pinkish appearance at wide viewing angles when displaying white light.

[0032] This application provides a display panel and a display device that can solve the problems existing in the above-mentioned related technologies.

[0033] Please refer to Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application. Figure 5 yes Figure 4 The schematic diagram of the cross-sectional structure of the display panel shown is located along the B1-B2 position. The display panel 20 may include: a substrate 21, a plurality of light-emitting units 22, an optical adjustment pattern 23, and a first planarization layer 24.

[0034] Multiple light-emitting units 22 can be located on the substrate 21, and multiple light-emitting units 13 can include various light-emitting units for emitting different colors of light. The optical adjustment pattern 23 can be located on the side of the light-emitting unit 22 away from the substrate 21, that is, the optical adjustment pattern 23 can be located on the light-emitting side of the light-emitting unit 22.

[0035] The optical adjustment pattern 23 may include a first protrusion structure 231 corresponding to at least one of the plurality of light-emitting units 22. The orthographic projection of the first protrusion structure 231 on the substrate 21 overlaps with the orthographic projection of the corresponding light-emitting unit 22 on the substrate 21, and the area of ​​the overlapping area is smaller than the area of ​​the orthographic projection of the light-emitting unit 22 on the substrate 21.

[0036] The first planarization layer 24 can be located on the side of the optical adjustment pattern 23 opposite to the light-emitting unit 22, wherein the refractive index of the first planarization layer 24 can be greater than the refractive index of the optical adjustment pattern 23. The first planarization layer 24 can cover the optical adjustment pattern 23. In this way, the first protrusion structure 231 can be located on the light-emitting side of the corresponding light-emitting unit 22 to adjust the light emission angle of a portion of the light emitted by the light-emitting unit 22 (the portion of the light illuminating the first protrusion structure 231).

[0037] like Figure 6 As shown, Figure 6 yes Figure 5 The diagram shows the optical path of the display panel. It should be noted that... Figure 6 To clearly illustrate the direction of the light path emitted by the light-emitting unit 22 and directed onto the first protruding structure 231, only a portion of the light beam emitted by the light-emitting unit 22 is shown. This portion of the light beam does not represent the amount of light emitted by the light-emitting unit 22 from the direction shown in the figure. Figure 6 As can be seen, the first light beam s1 emitted from the light-emitting unit 22 illuminates the interior of the first protruding structure 231 and exits from the surface of the first protruding structure 231 onto the first planarization layer 24. Since the refractive index of the first planarization layer 24 is greater than that of the first protruding structure 231, the light emission angle of the first light beam s1 emitted from the light-emitting unit 22 is larger than before it illuminates the first protruding structure 231. The light emission angle can refer to the angle between the light beam emitted from the light-emitting unit 22 and the normal to the light-emitting surface of the display panel 20. The normal to the light-emitting surface of the display panel 20 can be perpendicular to the substrate 21.

[0038] The second light beam s2 emitted from the light-emitting unit 22 enters the interior of the first planarization layer 24, irradiates the surface of the first protrusion structure 231, and undergoes total internal reflection on the surface of the first protrusion structure 231, making the emission angle of the second light beam s2 emitted from the light-emitting unit 22 smaller than before it irradiates the first protrusion structure 231.

[0039] The first protrusion structure 231 can have the following two effects on the light emitted by the light-emitting unit 22: First, it increases the emission angle of at least a portion of the light beam emitted by the light-emitting unit 22 (e.g., the first beam s1), thus increasing the light emission amount at larger emission angles. Second, it decreases the emission angle of at least a portion of the light beam emitted by the light-emitting unit 22 (e.g., the second beam s2), thus increasing the light emission amount at smaller emission angles. Experimental results show that the first effect has a greater impact on the light emitted by the light-emitting unit 22 than the second. Thus, the first protrusion structure 231 can adjust the light emitted by the corresponding light-emitting unit 22 from those with smaller emission angles to those with larger emission angles, thereby increasing the emission angle of at least a portion of the light emitted by the corresponding light-emitting unit 22 and improving the light emission uniformity of the light-emitting unit 22 at various emission angles. This prevents excessive differences in brightness of the light-emitting unit 22 as the emission angle increases, thereby improving the light emission uniformity of the display panel 20.

[0040] In summary, this application provides a display panel comprising: a substrate, a plurality of light-emitting units, an optical adjustment pattern, and a first planarization layer. The first protrusion structure in the optical adjustment pattern can be located in the light emission direction of at least one light-emitting unit. The optical adjustment pattern can increase the emission angle of at least a portion of the light emitted by the light-emitting unit, thereby improving the uniformity of brightness of the light-emitting unit at different emission angles and ultimately enhancing the display effect of the display panel.

[0041] Optionally, such as Figure 7 As shown, Figure 7 yes Figure 4 The color trajectory diagram of the display panel is shown. Figure 7 The diagram illustrates the color shift trajectory z3 of the actual color displayed by display panel 20 in the CIE chromaticity diagram as the viewing angle changes when displaying a white image. The horizontal axis Wx and the vertical axis Wy of the color trajectory diagram represent the chromaticity values, respectively. Curve z2 can represent the color shift trajectory of the actual color displayed by a display panel without optical adjustment pattern 23 in the CIE chromaticity diagram in related technologies. From... Figure 7 As can be seen, by setting the optical adjustment pattern 23, the color shift trajectory of the display panel can be adjusted, thereby adjusting the display effect of the display panel.

[0042] Optionally, such as Figure 6As shown, the first protrusion structure 231 includes at least one sub-protrusion 2311. The sub-protrusion 2311 has a top surface m1, a bottom surface m2, and a side surface m3 connecting the bottom surface m2 and the top surface m1. The side surface m3 and the bottom surface m2 have an acute angle α. Further, the acute angle α can be in the range of 60° to 90°. In this way, the light emitted by the light-emitting unit 22 can increase its emission angle after passing through the side surface of the first protrusion structure 231, which can improve the uniformity of light emission of the light-emitting unit 22 at various emission angles, thereby improving the display effect of the display panel.

[0043] Optionally, such as Figure 8 As shown, Figure 8 This is a schematic diagram of another display panel structure provided in an embodiment of this application. Figure 9 yes Figure 8 The diagram shows a cross-sectional structure of the display panel along the C1-C2 position. The light-emitting unit 22 may include at least two types of light-emitting units 22, and the first protrusion structure 231 may include at least one sub-protrusion 2311.

[0044] At least two types of light-emitting units 22 include a first-color light-emitting unit 221 and a second-color light-emitting unit 222, which can emit light of different colors. Because at least one of the microcavity structure, shape, and size of the different types of light-emitting units 22 differs, when the angle between the human eye's viewing direction and the normal to the light-emitting surface of the display panel 20 is large (e.g., 45 degrees to 60 degrees), the brightness difference between the light emitted by the first-color light-emitting unit 221 and the light emitted by the second-color light-emitting unit 222 is significant at the same viewing angle. This makes the image displayed on the display panel 20 more prone to color shift, resulting in a poor display effect.

[0045] The sub-protrusion parameters of the first protrusion structure 231 corresponding to the first color light-emitting unit 221 are different from those of the first protrusion structure 231 corresponding to the second color light-emitting unit 222. The sub-protrusion parameters include at least one of the number and size of the sub-protrusions 2311. By setting different first protrusion structures 231 for different types of light-emitting units 22, the light emitted by different types of light-emitting units 22 can be adjusted to different degrees. This ensures that the brightness change of the light emitted by the first color light-emitting unit 221 is as consistent as possible with the brightness change of the light emitted by the first color light-emitting unit 221 as the light emission angle changes. This avoids color shift when the display panel 20 displays the image at different light emission angles, thus improving the display effect of the display panel 20.

[0046] At least two types of light-emitting units 22 may further include a third-color light-emitting unit 223. The sub-protrusion parameters of the first protrusion structure 231 corresponding to the third-color light-emitting unit 223 may be different from the sub-protrusion parameters of the first protrusion structure 231 corresponding to the first-color light-emitting unit 221 and the second-color light-emitting unit 222. Alternatively, the sub-protrusion parameters of the first protrusion structure 231 corresponding to the third-color light-emitting unit 223 may be different from the sub-protrusion parameters of the first protrusion structure 231 corresponding to the first-color light-emitting unit 221, and the sub-protrusion parameters of the first protrusion structure 231 corresponding to the third-color light-emitting unit 223 may be the same as the sub-protrusion parameters of the first protrusion structure 231 corresponding to the second-color light-emitting unit 222.

[0047] It should be noted that, for ease of understanding, the embodiments of this application are described in... Figure 8 The example given is that the optical adjustment pattern 23 can simultaneously adjust the light emitted by the first color light-emitting unit 221 and the second color light-emitting unit 222. Of course, as... Figure 10 As shown, Figure 10 This is a schematic diagram of another display panel structure provided in an embodiment of this application. The optical adjustment pattern 23 can also adjust the light emitted by the first color light-emitting unit 221 or the second color light-emitting unit 222 independently. That is, the first protrusion structure 231 may not be provided in the light emission direction of the first color light-emitting unit 221 or the second color light-emitting unit 222.

[0048] Optionally, such as Figure 8 As shown, in at least one direction parallel to the substrate 21, the attenuation parameter of the first color light-emitting unit 221 is less than the attenuation parameter of the second color light-emitting unit 222. The attenuation parameter is the ratio of the brightness of the light-emitting unit 22 at a specified light emission angle to the maximum brightness of the light-emitting unit 22 in at least one direction parallel to the substrate 21. The specified light emission angle can be in the range of 15° to 90°.

[0049] That is, the attenuation parameter can refer to the ratio of the brightness of the light emitted by a light-emitting unit 22 at any light emission angle to the maximum brightness of the light-emitting unit 22 during the process of the light emission angle changing from 0° to 90° in at least one direction parallel to the substrate 21. The smaller the ratio, the greater the degree of brightness attenuation of the light-emitting unit, and the greater the difference between the brightness of the light emitted by the light-emitting unit at a large angle and the brightness of the light emitted at a small angle (front).

[0050] The number of sub-protrusions 2311 in the first protrusion structure 231 corresponding to the first color light-emitting unit 221 is greater than the number of sub-protrusions 2311 in the first protrusion structure 231 corresponding to the second color light-emitting unit 222. The first protrusion structure 231 corresponding to the first color light-emitting unit 221 can be used to adjust the light emitted by the first color light-emitting unit 221 to increase the light emission angle when some of the light emitted by the first color light-emitting unit 221 is emitted from the display panel. At the same time, the first protrusion structure 231 corresponding to the second color light-emitting unit 222 can be used to adjust the light emitted by the second color light-emitting unit 222 to increase the light emission angle when some of the light emitted by the second color light-emitting unit 222 is emitted from the display panel. Furthermore, the amount of light emitted by the first color light-emitting unit 221 through the optical adjustment pattern 23 is greater than the amount of light emitted by the second color light-emitting unit 222 through the optical adjustment pattern 23.

[0051] In this way, the optical adjustment pattern 23 can adjust the light emission angle of the first color light-emitting unit 221 and the second color light-emitting unit 222 in the display panel 20, so that the attenuation parameters of the light emitted by the first color light-emitting unit 221 are kept as consistent as possible with each other as the light emission angle of the display panel 20 changes. This can avoid color shift when the display panel 20 displays the image at different viewing angles, thereby improving the display effect of the display panel.

[0052] In one alternative implementation, such as Figure 10 As shown, the number of first protrusion structures 231 corresponding to the second color light-emitting unit 222 can be 0, so that the light emission angle of the light emitted by the second color light-emitting unit 222 when it exits the display panel is not adjusted. The number of sub-protrusions 2311 in the first protrusion structure 231 corresponding to the first color light-emitting unit 221 is greater than or equal to 1. In this way, by adjusting the light emission angle of the light emitted by the first color light-emitting unit 221 when it exits the display panel, the color shift phenomenon of the display panel 20 when displaying the image at different viewing angles can be avoided.

[0053] Optionally, such as Figure 11 As shown, Figure 11 This is a schematic diagram of another display panel structure provided in an embodiment of this application. In at least one direction parallel to the substrate 21, the attenuation parameter of the first color light-emitting unit 221 is less than the attenuation parameter of the second color light-emitting unit 222. The attenuation parameter is the ratio of the brightness of the light-emitting unit 22 at a specified light emission angle to the maximum brightness of the light-emitting unit 22 in at least one direction parallel to the substrate 21.

[0054] At least one sub-protrusion 2311 in the first protrusion structure 231 can be a strip protrusion 23111, and the length of the strip protrusion 23111 corresponding to the first color light-emitting unit 221 is greater than the length of the strip protrusion 23111 corresponding to the second color light-emitting unit 222. The ratio of the length to the width of the strip protrusion 23111 can be greater than or equal to 2.

[0055] Because a longer strip protrusion 23111 can adjust more of the light emitted from the light-emitting unit 22 with a smaller emission angle to a larger emission angle, the strip protrusion 23111 can increase the attenuation parameter of the corresponding light-emitting unit 22. Therefore, by setting strip protrusions 23111 of different lengths, the emission angle of some of the light emitted by the first color light-emitting unit 221 and the second color light-emitting unit 222 in the display panel 20 can be adjusted. This ensures that the attenuation parameter of the light emitted by the first color light-emitting unit 221 and the second color light-emitting unit 222 remains as consistent as possible during changes in emission angle. This avoids color shift when the display panel 20 displays the image from different viewing angles, thereby improving the display effect of the display panel 20.

[0056] Optionally, such as Figure 11 As shown, the plurality of light-emitting units 22 may include at least one target light-emitting unit 224. The attenuation parameter of the target light-emitting unit 224 in the first direction f1 is less than the attenuation parameter in the second direction f2. The first direction f1 and the second direction f2 are parallel to the substrate 21, and the first direction f1 is perpendicular to the second direction f2.

[0057] The first protrusion structure 231 may include at least one sub-protrusion 2311. The at least one sub-protrusion 2311 in the first protrusion structure 231 is a strip protrusion 23111. The length direction of the strip protrusion 23111 corresponding to the target light-emitting unit 224 is parallel to the second direction f2.

[0058] When the sub-protrusion 2311 is a strip-shaped protrusion 23111, the side extending along the length of the strip-shaped protrusion 23111 has a significant impact on the light emission angle of the light emitted by the light-emitting unit 22. That is, the strip-shaped protrusion 23111 can adjust the light emission angle of the light-emitting unit 22 in the width direction of the strip-shaped protrusion 23111. Thus, by flexibly setting the length direction of the strip-shaped protrusion 23111, the light emission angle of the light emitted by the light-emitting unit 22 in multiple directions can be flexibly adjusted, thereby flexibly adjusting the attenuation parameters of the light-emitting unit 22 in multiple directions. For example, the length direction of the strip-shaped protrusion 23111 can be set to the second direction f2, so that the light emission angle of some of the light emitted by the light-emitting unit 22 in the first direction f1 is increased, which can adjust the color shift of the display panel in the first direction f1, wherein the first direction f1 is perpendicular to the second direction f2. Specifically, the side extending along the length direction of the strip-shaped protrusion 23111 can face the direction of the display panel where the color shift needs to be adjusted.

[0059] In this way, the first protrusion structure 231 can increase the emission angle of at least a portion of the light emitted by the target light-emitting unit 224 in the first direction f1, thereby reducing the difference between the attenuation parameter of the target light-emitting unit 224 in the first direction f1 and the attenuation parameter of the target light-emitting unit 224 in the second direction f2. This can avoid color shift when the display panel 20 displays the image in different directions, and thus improve the display effect of the display panel.

[0060] Optionally, such as Figure 12 and Figure 13 As shown, Figure 12 This is a schematic diagram of another display panel structure provided in an embodiment of this application. Figure 13 yes Figure 12 The diagram shows a cross-sectional view of the display panel along the D1-D2 position. The first protrusion structure 231 may include multiple sub-protrusions 2311, which are strip-shaped protrusions 23111, and the length directions of the multiple strip-shaped protrusions 23111 are angled together. The extension directions of the multiple strip-shaped protrusions 23111 may be different to adjust the light emission angles of the light-emitting unit 22 corresponding to the first protrusion structure 231 in multiple directions. For example, the multiple strip-shaped protrusions 23111 may be various shapes such as "cross-shaped" or "star-shaped".

[0061] Optionally, such as Figure 8As shown, the first protrusion structure 231 may include multiple sub-protrusions 2311, which may be strip-shaped protrusions 23111. The length directions of the multiple strip-shaped protrusions 23111 are parallel, and there are intervals between the multiple strip-shaped protrusions 23111. The attenuation parameter of the light-emitting unit 22 in one direction can be adjusted by adjusting the number of strip-shaped protrusions 23111 corresponding to the light-emitting unit 22. For example, the number of strip-shaped protrusions 23111 corresponding to the first color light-emitting unit 221 may be 3, and the length directions of the three strip-shaped protrusions 23111 are all in the second direction. This can increase the light emission angle of at least a portion of the light emitted by the first color light-emitting unit 221 in the first direction, so that the attenuation parameter of the first color light-emitting unit 221 in the first direction is larger.

[0062] Optionally, such as Figure 14 and Figure 15 As shown, Figure 14 This is a schematic diagram of another display panel structure provided in an embodiment of this application. Figure 15 yes Figure 14 The diagram shows a cross-sectional view of the display panel along the E1-E2 position. The first protrusion structure 231 includes at least one sub-protrusion 2311. Each sub-protrusion 2311 is a block protrusion 23112. The edge of the block protrusion 23112's orthogonal projection onto the substrate 21 is spaced from the edge of the corresponding light-emitting unit 22's orthogonal projection onto the substrate 21. The length-to-width ratio of the block protrusion 23112 can be less than 2. Thus, the light emission angle of the light emitted by the light-emitting unit 22 can be adjusted in multiple directions using the block protrusion 23112. By adjusting some of the light emitted by the light-emitting unit 22 with smaller emission angles to light with larger emission angles, the light emission uniformity of the light-emitting unit 22 at various emission angles can be improved. This, in turn, improves the display effect of the display panel.

[0063] Figure 16 and Figure 17 These are schematic diagrams of the structures of two other display panels provided in the embodiments of this application. The number of block protrusions 23112 in the first protrusion structure 231 corresponding to the various light-emitting units 22 can be different. The block protrusions 23112 in the display panel 20 can be flexibly arranged according to the color deviation of different display panels 20, so that the attenuation parameters of the light emitted by the various light-emitting units 22 are kept as consistent as possible, so as to be suitable for the different usage environments of the display panel 20 and improve the applicability of the display panel 20.

[0064] Optionally, such as Figure 18 and Figure 19 As shown, Figure 18 This is a schematic diagram of another display panel structure provided in an embodiment of this application. Figure 19 yes Figure 18 The diagram shows a cross-sectional view of the display panel along the G1-G2 position. The display panel 20 may also include a pixel defining layer 25, which is located on the side of the optical adjustment pattern 23 facing the substrate 21. The pixel defining layer 25 has a plurality of pixel openings 251, and the light-emitting unit 22 is located in the pixel openings 251.

[0065] The optical adjustment pattern 23 may also include a second protrusion structure 232, which has a plurality of first openings 2321. The orthographic projection of the pixel opening 251 on the substrate 21 is located in the orthographic projection of the first opening 2321 on the substrate 21, and the orthographic projection of the first protrusion structure 231 on the substrate 21 is located in the orthographic projection of the first opening 2321 on the substrate 21.

[0066] Since the refractive index of the second protrusion structure 232 is less than that of the first planar layer 24 covering the second protrusion structure 232, the light beam emitted by the light-emitting unit 22 located in the pixel opening 251 can be totally internally reflected on the side of the second protrusion structure 232 by setting the second protrusion structure 232 around the pixel opening 251, thereby improving the front light emission efficiency of the display panel.

[0067] Furthermore, the first protrusion structure 231 on the display panel 20 can increase the emission angle of some of the emitted light from at least some of the light-emitting units 22, thereby keeping the attenuation parameters of the light emitted by the various light-emitting units 22 as consistent as possible, thus improving the problem of color shift at large viewing angles of the display panel. In this way, by combining the first protrusion structure 231 and the second protrusion structure 232, the front light emission efficiency of the display panel 20 can be improved while simultaneously addressing the problem of color shift at large viewing angles, thereby enhancing the display effect of the display panel 20.

[0068] like Figure 12 , Figure 13 and Figure 17 As shown, the second protrusion structure 232 and the first protrusion structure 231 can be combined in various ways, that is, the second protrusion structure 232 can be combined with the strip protrusion 23111 or the block protrusion 23112 to make the display panel display better.

[0069] Optionally, the first protrusion structure 231 and the second protrusion structure 232 can be in the same layer and formed through the same patterning process, which can simplify the manufacturing process of the display panel 20.

[0070] Optionally, such as Figure 13 and Figure 17As shown, the first protrusion structure 231 may include at least one sub-protrusion 2311, which may be a strip-shaped protrusion 23111, with both ends of the strip-shaped protrusion 23111 connected to the second protrusion structure 232. That is, the strip-shaped protrusion 23111 and the second protrusion structure 232 may be an integral structure and formed through a single patterning process.

[0071] Optionally, such as Figure 18 As shown, the orthographic projection of the strip-shaped protrusion 23111 onto the substrate 21 can contact the two opposite edges of the orthographic projection of the pixel opening 251 onto the substrate 21 along a third direction f3, where f3 can be the length direction of the strip-shaped protrusion 23111. In this way, the strip-shaped protrusion 23111 can adjust the attenuation parameters of a larger portion of the light emitted by the light-emitting unit 22 located in the pixel opening 251, thereby improving the adjustment efficiency of the strip-shaped protrusion 23111 on the light emitted by the light-emitting unit 22.

[0072] Optionally, such as Figure 18 As shown, the center of the orthographic projection of the first protrusion structure 231 on the substrate 21 coincides with the center of the orthographic projection of the corresponding light-emitting unit 22 on the substrate 21. This center is the centroid of either the orthographic projection of the first protrusion structure 231 or the orthographic projection of the light-emitting unit 22 on the substrate 21. It should be understood that when the orthographic projections of the first protrusion structure 231 and the light-emitting unit 22 on the substrate 21 form a regular pattern, this center is the geometric center of either the orthographic projection of the first protrusion structure 231 or the orthographic projection of the light-emitting unit 22 on the substrate 21. This allows the light emission angle of the light emitted by the light-emitting unit 22, adjusted by the first protrusion structure 231, to be more symmetrical, resulting in more uniform brightness in all directions of the display panel 20.

[0073] Optionally, such as Figure 20 and Figure 21 As shown, Figure 20 This is a schematic diagram of another display panel structure provided in an embodiment of this application. Figure 21 yes Figure 20 The diagram shows a cross-sectional view of the display panel along the H1-H2 position. The center p1 of the orthographic projection of the first protrusion 231 onto the substrate 21 is located in a specified direction at the center p2 of the orthographic projection of the corresponding light-emitting unit 22 onto the substrate 21. In some display panels, the attenuation parameters of light emitted by light-emitting units of different colors are inconsistent at the same positive and negative emission angles in the same direction, resulting in color shift in the final image displayed by the display panel. Figure 21 In the diagram, the normal to the light-emitting surface of the display panel 20 is d, the direction along which is e is the positive light emission angle, and the direction along which is opposite to e is the negative light emission angle. Figure 21Positive 30° light exit angle and negative 30° light exit angle are shown in .

[0074] Please continue to refer to this. Figure 21 Since the position of the first protrusion structure 231 can be set differently according to the distance between the center of the first protrusion structure 231 and the center of the light-emitting unit 22, and when the center of the orthogonal projection of the first protrusion structure 231 on the substrate 21 is located in a specified direction of the center of the projection of the corresponding light-emitting unit 22 on the substrate 21, the light emission of the light-emitting unit 22 in the specified direction is greater, and the light emission of the light-emitting unit 22 in the opposite direction is less, the attenuation parameters of the light-emitting unit 22 under positive and negative viewing angles can be made consistent, thereby improving the color shift problem of the display panel 20.

[0075] For example, Figure 21 The first protrusion structure 231 can also be used in vehicle display devices. Since viewers usually view vehicle display devices from a specific angle, the light emission angle of the display panel 20 in a specified direction can be adjusted by the first protrusion structure 231 to suit the usage environment of various display panels.

[0076] Optionally, the first protrusion structure 231 may include at least one sub-protrusion 2311, the thickness of which is greater than or equal to 4 micrometers.

[0077] The sub-protrusion 2311 is a strip-shaped protrusion 23111, and the width of the strip-shaped protrusion 23111 in the direction parallel to the substrate 21 ranges from 5 micrometers to 10 micrometers. Alternatively, the sub-protrusion 2311 is a block-shaped protrusion 23112, and the size of the block-shaped protrusion 23112 in the direction parallel to the substrate 21 ranges from 5 micrometers to 10 micrometers.

[0078] Optionally, the multiple light-emitting units include red light-emitting units, green light-emitting units, and blue light-emitting units. The red light-emitting units emit red light, the green light-emitting units emit green light, and the blue light-emitting units emit blue light. The number of substructures in the first protrusion structure corresponding to the red light-emitting unit is greater than the number of substructures in the first protrusion structure corresponding to the blue light-emitting unit; the number of substructures in the first protrusion structure corresponding to the green light-emitting unit is greater than the number of substructures in the first protrusion structure corresponding to the blue light-emitting unit.

[0079] Optionally, such as Figure 21 As shown, the display panel 20 may further include an encapsulation layer 26, wherein the optical adjustment pattern 23 may be located on the side of the encapsulation layer 26 opposite to the substrate 21.

[0080] Optionally, such as Figure 22 As shown, Figure 22This is a schematic diagram of another display panel structure provided in an embodiment of this application. The display panel 20 may further include: an encapsulation layer 26, which may be a multi-layer structure, wherein the optical adjustment pattern 23 and the first planarization layer 24 may be located on the side of at least one structural layer in the encapsulation layer 26 near the substrate 21. The refractive index of the encapsulation layer 26 may be lower than the refractive index of the first planarization layer 24.

[0081] In one alternative implementation, such as Figure 23 As shown, Figure 23 This is a schematic diagram of another display panel structure provided in an embodiment of this application. The display panel 20 may further include an encapsulation layer 26, which may include a first inorganic encapsulation layer 261, an organic encapsulation layer 262, and a second inorganic encapsulation layer 263. An optical adjustment pattern 23 and a first planarization layer 24 may be located between the first inorganic encapsulation layer 261 and the organic encapsulation layer 262. The refractive index of the first planarization layer 24 may be higher than that of the organic encapsulation layer 262, and the material of the first planarization layer 24 may include photoresist.

[0082] Optionally, when the refractive index of the organic encapsulation layer 262 is high, that is, when the refractive index of the organic encapsulation layer 262 is similar to that of the first planarization layer 24, the first planarization layer 24 and the organic encapsulation layer 262 can be an integral structure. During the manufacturing process of the display panel 20, the organic encapsulation layer 262 with a high refractive index can be directly covered on the side of the optical adjustment pattern 23 away from the substrate.

[0083] In one alternative embodiment, such as Figure 24 and 25 As shown, Figure 24 This is a schematic diagram of another display panel structure provided in an embodiment of this application. Figure 25 yes Figure 24 The diagram shows a cross-sectional view of the display panel along the J1-J2 position. The first planarization layer 24 may have a third protrusion structure 241, and the orthographic projection of the light-emitting unit 22 on the substrate 21 lies within the orthographic projection of the third protrusion structure 241 on the substrate 21. The refractive index of the third protrusion structure 241 may be greater than the refractive index of at least one structural layer in the encapsulation layer 26, and the third protrusion structure 241 may be used to increase the front light emission of the display panel 20.

[0084] like Figure 26 As shown, Figure 26This is a schematic diagram of another display panel structure provided in an embodiment of this application. The encapsulation layer 26 may include a first inorganic encapsulation layer 261, an organic encapsulation layer 262, and a second inorganic encapsulation layer 263. The organic encapsulation layer 262 may be located on the side of the first planarization layer 24 and the optical adjustment pattern 23 away from the substrate 21, that is, the optical adjustment pattern 23 and the third protrusion structure 241 may be located between the first inorganic encapsulation layer 261 and the organic encapsulation layer 262. The orthographic projection of the light-emitting unit 22 on the substrate 21 and the orthographic projection of the optical adjustment pattern 23 on the substrate 21 are both located in the orthographic projection of the third protrusion structure 241 on the substrate 21. The refractive index of the third protrusion structure 241 may be higher than the refractive index of the organic encapsulation layer 262, and the third protrusion structure 241 may be used to increase the front light emission of the display panel 20.

[0085] Thus, by combining the first protrusion structure 231 and the third protrusion structure 241, the light emission efficiency of the front of the display panel 20 can be improved, while the problem of large viewing angle color deviation of the display panel 20 can be improved, thereby improving the display effect of the display panel 20.

[0086] In summary, this application provides a display panel comprising: a substrate, a plurality of light-emitting units, an optical adjustment pattern, and a first planarization layer. The first protrusion structure in the optical adjustment pattern can be located in the light emission direction of at least one light-emitting unit. The optical adjustment pattern can increase the emission angle of at least a portion of the light emitted by the light-emitting unit, thereby improving the uniformity of brightness of the light-emitting unit at different emission angles and ultimately enhancing the display effect of the display panel.

[0087] This application also provides a display device, which includes a power supply component and a display panel. The power supply component is used to supply power to the display panel. The display panel can be any of the display panels described in the above embodiments.

[0088] The display device can be any product or component with display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0089] In this application, the term "at least one of A and B" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, "at least one of A and B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0090] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0091] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0092] The above description is merely an optional 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 protection scope of this application.

Claims

1. A display panel, characterized by, include: substrate; Multiple light-emitting units are located on the substrate; An optical adjustment pattern is located on the side of the light-emitting unit away from the substrate. The optical adjustment pattern includes a first protrusion structure corresponding to at least one of the plurality of light-emitting units. The orthographic projection of the first protrusion structure on the substrate overlaps with the orthographic projection of the corresponding light-emitting unit on the substrate, and the area of ​​the overlapping area is smaller than the area of ​​the orthographic projection of the light-emitting unit on the substrate. A first planarization layer is located on the side of the optical adjustment pattern away from the light-emitting unit. The refractive index of the first planarization layer is greater than the refractive index of the optical adjustment pattern. The plurality of light-emitting units include at least one target light-emitting unit. The attenuation parameter of the target light-emitting unit in a first direction is less than the attenuation parameter in a second direction. The first direction and the second direction are parallel to the substrate, and the first direction is perpendicular to the second direction. The attenuation parameter is the ratio of the brightness of the light-emitting unit at a specified light emission angle to the maximum brightness of the light-emitting unit in at least one direction parallel to the substrate. The first protrusion structure includes at least one sub-protrusion, and the at least one sub-protrusion in the first protrusion structure is a strip-shaped protrusion, wherein the length direction of the strip-shaped protrusion corresponding to the target light-emitting unit is parallel to the second direction.

2. The display panel according to claim 1, characterized in that, The light-emitting unit includes at least two types of light-emitting units, and the first protrusion structure includes at least one sub-protrusion; The at least two light-emitting units include a first color light-emitting unit and a second color light-emitting unit. The sub-protrusion parameters of the first protrusion structure corresponding to the first color light-emitting unit and the sub-protrusion parameters of the first protrusion structure corresponding to the second color light-emitting unit are different. The sub-protrusion parameters include at least one of the number and size of the sub-protrusions.

3. The display panel according to claim 2, characterized in that, In at least one direction parallel to the substrate, the attenuation parameter of the first color light-emitting unit is less than the attenuation parameter of the second color light-emitting unit, wherein the attenuation parameter is the ratio of the brightness of the light-emitting unit at a specified light emission angle to the maximum brightness of the light-emitting unit in at least one direction parallel to the substrate. The number of sub-protrusions in the first protrusion structure corresponding to the first color light-emitting unit is greater than the number of sub-protrusions in the first protrusion structure corresponding to the second color light-emitting unit.

4. The display panel according to claim 2, characterized in that, In at least one direction parallel to the substrate, the attenuation parameter of the first color light-emitting unit is less than the attenuation parameter of the second color light-emitting unit, wherein the attenuation parameter is the ratio of the brightness of the light-emitting unit at a specified light emission angle to the maximum brightness of the light-emitting unit in at least one direction parallel to the substrate. The length of the strip-shaped protrusion corresponding to the first color light-emitting unit is greater than the length of the strip-shaped protrusion corresponding to the second color light-emitting unit.

5. The display panel according to claim 1, characterized in that, The length directions of the plurality of strip-shaped protrusions are at an angle.

6. The display panel according to claim 1, characterized in that, The length directions of the plurality of strip-shaped protrusions are parallel, and there is a gap between the plurality of strip-shaped protrusions.

7. The display panel according to claim 1, characterized in that, The first protrusion structure includes at least one sub-protrusion, and the at least one sub-protrusion in the first protrusion structure is a block protrusion. The edge of the block protrusion's orthogonal projection on the substrate is spaced from the edge of the corresponding light-emitting unit's orthogonal projection on the substrate.

8. The display panel according to any one of claims 1-7, characterized in that, The display panel further includes a pixel defining layer located on the side of the optical adjustment pattern facing the substrate. The pixel defining layer has a plurality of pixel openings, and the light-emitting unit is located in the pixel openings. The optical adjustment pattern further includes a second protrusion structure having a plurality of first openings, wherein the orthographic projection of the pixel opening on the substrate is located in the orthographic projection of the first opening on the substrate, and the orthographic projection of the first protrusion structure on the substrate is located in the orthographic projection of the first opening on the substrate.

9. The display panel according to claim 8, characterized in that, The first protrusion structure and the second protrusion structure are in the same layer and are formed by the same patterning process.

10. The display panel according to claim 9, characterized in that, The two ends of the strip-shaped protrusion are connected to the second protrusion structure.

11. The display panel according to claim 8, characterized in that, The orthographic projection of the strip-shaped protrusion on the substrate contacts two opposite edges along a third direction, where the orthographic projection of the pixel opening on the substrate is the length direction of the strip-shaped protrusion.

12. The display panel according to claim 1, characterized in that, The center of the orthographic projection of the first protrusion structure on the substrate coincides with the center of the orthographic projection of the corresponding light-emitting unit on the substrate.

13. The display panel according to claim 1, characterized in that, The center of the orthographic projection of the first protrusion structure on the substrate is located in a specified direction at the center of the orthographic projection of the corresponding light-emitting unit on the substrate.

14. The display panel according to claim 1, characterized in that, The first protrusion structure includes at least one sub-protrusion, the sub-protrusion having a top surface, a bottom surface, and a side surface connecting the bottom surface and the top surface, the side surface having an acute angle with the bottom surface.

15. The display panel according to claim 1, characterized in that, The display panel further includes an organic encapsulation layer located on the side of the first planarization layer and the optical adjustment pattern away from the substrate; The first planarization layer has a third protrusion structure. The orthographic projection of the light-emitting unit on the substrate and the orthographic projection of the optical adjustment pattern on the substrate are both located in the orthographic projection of the third protrusion structure on the substrate. The refractive index of the third protrusion structure is greater than the refractive index of the organic encapsulation layer.

16. A display device, characterized in that, include: A power supply component, and a display panel according to any one of claims 1 to 15, wherein the power supply component is used to supply power to the display panel.

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