Display panel and display device

Abstract

The invention provides a display panel and a display device, and relates to the technical field of display. The light-emitting layer comprises a plurality of light-emitting units which are arranged in an array; the light shielding layer is arranged on the side, away from the substrate, of the light emitting layer, a plurality of opening areas corresponding to the light emitting units are defined by the light shielding layer, and each opening area comprises a first pixel opening and a second pixel opening which are adjacent to each other; the multiple dimming structures are arranged on the side, away from the substrate, of the light-emitting layer, the multiple dimming structures at least correspond to the first pixel openings, and the dimming structures are used for adjusting diffraction fringes of the opening areas corresponding to the dimming structures so that the main minimum value of the diffraction fringes generated by the first pixel openings can be smaller than the main minimum value of the diffraction fringes generated by the second pixel openings, and the main minimum value of the diffraction fringes generated by the second pixel openings can be smaller than the main minimum value of the diffraction fringes generated by the first pixel openings. And the main maximum values of the diffraction fringes generated by the second pixel openings are mutually overlapped in space.

Description

Technical Field

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

[0002] With the rapid development of display technology, OLED displays using color filter array (COE) technology have been widely used in various electronic devices. However, OLED screens have significant optical problems when the screen is off: when external point light sources illuminate the screen, serious color separation occurs, which seriously affects the display quality and user experience.

[0003] Specifically, the RGB pixels in traditional COE technology are usually designed with equal-sized openings, and the spacing between pixels is evenly distributed. When an external point light source is incident on the COE screen, the light will diffract through the opening area of ​​each pixel, and the diffracted light waves generated by each pixel will interfere and superimpose during the propagation process, resulting in the separation of RGB color components in space from the observer's perspective, forming obvious color stripes or spots, which seriously affects the display uniformity. Therefore, how to eliminate the color separation phenomenon of the display panel and improve the optical performance of the OLED screen in various usage scenarios has become a problem that needs to be solved in this field. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a display device, aiming to solve the problem of how to eliminate the color separation phenomenon of the display panel and improve the optical performance of the OLED screen in various usage scenarios.

[0005] A first aspect of an embodiment of the present application provides a display panel, the display panel comprising:

[0006] substrate;

[0007] A light-emitting layer, comprising a plurality of light-emitting units arranged in an array;

[0008] A light shielding layer is arranged on a side of the light emitting layer away from the substrate, the light shielding layer defines a plurality of opening areas arranged corresponding to the plurality of light emitting units, the opening areas include a first pixel opening and a second pixel opening arranged adjacent to each other;

[0009] A plurality of dimming structures are arranged on a side of the light-emitting layer away from the substrate, and the plurality of dimming structures are arranged at least corresponding to the first pixel opening. The dimming structures are used to adjust the diffraction stripes of the opening area corresponding to the dimming structures so that the main minimum of the diffraction stripes generated by the first pixel opening and the main maximum of the diffraction stripes generated by the second pixel opening are spatially superimposed on each other.

[0010] In an optional implementation, the dimming structure is arranged corresponding to the first pixel opening, and the dimming structure is used to adjust the diffraction fringes with the first-level pixel opening.

[0011] In an optional embodiment, the dimming structure includes a first dimming structure and a second dimming structure, the first dimming structure is arranged corresponding to the first pixel opening, the second dimming structure is arranged corresponding to the second pixel opening, and the maximum thickness of the first dimming structure and the second dimming structure are different.

[0012] In an optional implementation, the orthographic projection of the dimming structure on the substrate at least covers the orthographic projection of the first pixel opening on the substrate, and the orthographic projections of the multiple dimming structures on the substrate do not overlap with the orthographic projection of the second pixel opening on the substrate.

[0013] In an optional implementation, the display panel further includes a color filter layer, which is disposed on the same layer as the light shielding layer and is filled in the opening area;

[0014] The dimming structure is arranged on a side of the color filter layer away from the substrate, wherein the orthographic projection of the color filter layer filled in the first pixel opening on the substrate is located inside the orthographic projection of the dimming structure on the substrate or coincides with the orthographic projection of the dimming structure on the substrate.

[0015] In an optional embodiment, the display panel further includes a color filter layer, which is provided in the same layer as the light-shielding layer and filled in the opening area, wherein the color filter layer filled in the first pixel opening is reused as the dimming structure.

[0016] In an optional implementation, the thickness of the dimming structure gradually decreases along a first direction, the maximum thickness of the dimming structure is greater than the thickness of the light shielding layer, and the first direction is a direction from the center of the dimming structure to the edge.

[0017] In an optional implementation, the maximum thickness of the dimming structure is less than or equal to 10 μm.

[0018] In an optional embodiment, the display panel further includes a planar layer, which is disposed on a side of the dimming structure away from the substrate and at least covers a surface of the dimming structure away from the substrate, and the refractive index of the dimming structure is greater than that of the planar layer.

[0019] In an optional implementation manner, the opening area includes a central area and a peripheral area arranged around the central area, and an orthographic projection of the central area on the substrate coincides with an orthographic projection of the light-emitting unit on the substrate;

[0020] The multiple dimming structures are respectively arranged corresponding to the first pixel opening and the second pixel opening, and the dimming structure includes a first part and a second part arranged around the first part, and the first part and the second part are used to adjust the diffraction stripes of the opening area corresponding to the dimming structure so that the main minimum of the diffraction stripes generated in the central area and the main maximum of the diffraction stripes generated in the peripheral area are spatially superimposed on each other.

[0021] In an optional implementation manner, the orthographic projection of the first portion on the substrate is located inside the orthographic projection of the central area on the substrate;

[0022] An orthographic projection of the second portion on the substrate at least partially overlaps with an orthographic projection of the peripheral region on the substrate, and does not overlap with an orthographic projection of the central region on the substrate.

[0023] In an optional implementation, the thickness of the second portion gradually decreases along a first direction, and the thickness of the first portion remains unchanged along the first direction, and the first direction is a direction from the center of the dimming structure to the edge;

[0024] The width of the second portion gradually increases along a second direction, and the width of the first portion remains unchanged along the second direction. The second direction is an arrangement direction of the substrate pointing toward the light-emitting layer.

[0025] In an optional embodiment, the dimming structure includes a first surface and a second surface arranged opposite to each other along the second direction, and a climbing surface connecting the first surface and the second surface, the first surface is arranged away from the substrate relative to the second surface, the width of the first surface is smaller than the width of the second surface, and the second direction is the arrangement direction of the substrate and the light-emitting layer.

[0026] In an optional implementation, the slope of the climbing surface is greater than or equal to 5° and less than or equal to 25°.

[0027] In an optional implementation, the display panel further includes a planar layer, and the planar layer is arranged on a side of the dimming structure away from the substrate;

[0028] The planar layer fills the area enclosed by the second portion in the dimming structure to be reused as the first portion, and the refractive index of the second portion is greater than the refractive index of the planar layer.

[0029] A second aspect of the embodiments of the present application provides a display device, which includes a display panel as described in any one of the first aspects of the embodiments of the present application.

[0030] Beneficial effects:

[0031] The present application provides a display panel and a display device, wherein the display panel comprises: a substrate; a light-emitting layer, comprising a plurality of light-emitting units arranged in an array; a shading layer, arranged on a side of the light-emitting layer away from the substrate, the shading layer defining a plurality of opening areas corresponding to the plurality of light-emitting units, the opening areas comprising a first pixel opening and a second pixel opening arranged adjacent to each other; a plurality of dimming structures, arranged on a side of the light-emitting layer away from the substrate, and the plurality of dimming structures are arranged at least corresponding to the first pixel opening, the dimming structures being used to adjust the diffraction fringes of the opening areas corresponding to the dimming structures, so that the main minimum of the diffraction fringes generated by the first pixel opening and the main maximum of the diffraction fringes generated by the second pixel opening are spatially superimposed on each other. The present application sets up multiple dimming structures corresponding to the first pixel openings, so that the diffraction stripes generated by the first pixel openings change compared to the diffraction stripes generated by the second pixel openings. The main minimum of the diffraction stripes generated by the first pixel openings and the main maximum of the diffraction stripes generated by the second pixel openings are superimposed on each other in space, forming a light intensity complementary effect, thereby offsetting the color shift and making the diffraction stripes generated by different pixel openings of the display panel overlap in the observer's perspective, effectively weakening the color separation phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 This is a schematic diagram of a pixel region structure in which a dimming structure is provided in a display panel according to an embodiment of the present application;

[0034] Figure 2 This is a distribution diagram of a dimming structure corresponding to a first pixel opening proposed in an embodiment of the present application;

[0035] Figure 3 This is a schematic diagram of a pixel region structure in which a color filter layer is multiplexed into a dimming structure, as proposed in an embodiment of the present application;

[0036] Figure 4 This is a schematic diagram of a pixel region structure in which a dimming structure is provided in another display panel proposed in an embodiment of the present application;

[0037] Figure 5 This is a schematic diagram of the correspondence between a dimming structure and an opening area proposed in an embodiment of the present application;

[0038] Figure 6 is a schematic cross-sectional structure diagram of a dimming structure proposed in one embodiment of the present application;

[0039] Figure 7 is a schematic cross-sectional structure diagram of another dimming structure proposed in an embodiment of the present application;

[0040] Figure 8 This is a schematic diagram of a pixel region structure in which a flat layer is reused as the first part, as proposed in one embodiment of the present application;

[0041] Fig. 9 It is a distribution diagram of a first dimming structure and a second dimming structure proposed in an embodiment of the present application.

[0042] Explanation of the reference numerals: 11. substrate; 21. light-emitting unit; 22. pixel definition layer; 23. organic layer; 24. first passivation layer; 25. second passivation layer; 26. first buffer layer; 27. second buffer layer; 31. metal layer; 32. protective layer; 41. shading layer; 42. color filter layer; 43. dimming structure; 431. first part; 432. second part; 433. first dimming structure; 434. second dimming structure; 44. flat layer; 51. first pixel opening; 52. second pixel opening; 61. central area; 62. peripheral area; 71. first surface; 72. second surface; 73. climbing surface. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] In the drawings, the size of the constituent elements, the thickness of the layer or the area may be exaggerated for the sake of clarity. Therefore, any implementation of the present disclosure is not necessarily limited to the size shown in the drawings, and the shapes and sizes of the components in the drawings do not reflect the true proportions. In addition, the drawings schematically show ideal examples, and any implementation of the present disclosure is not limited to the shapes or values ​​shown in the drawings.

[0045] With the rapid development of display technology, OLED displays using color filter array (COE) technology have been widely used in various electronic devices. However, OLED screens have significant optical problems when the screen is off: when external point light sources illuminate the screen, serious color separation occurs, which seriously affects the display quality and user experience.

[0046] Specifically, the RGB pixels in the traditional COE technology are usually designed with equal-sized openings, and the spacing between pixels is evenly distributed. This periodic arrangement structure will cause the following problems when the screen is off:

[0047] Diffraction effect: When an external point light source is incident on the COE screen, the light will diffract through the opening area of ​​each pixel. Since the opening size and spacing of the RGB pixels are exactly the same, the diffraction light field presents a highly periodic distribution.

[0048] Interference superposition: The diffracted light waves generated by each pixel interfere and superpose during the propagation process. Due to the different wavelengths of red, green, and blue light, this periodic interference will cause the main maximum position of different color lights to shift significantly.

[0049] Color separation phenomenon: The above interference superposition effect eventually causes the RGB color components to separate in space from the observer's perspective, forming obvious color stripes or spots, which seriously affects the display uniformity. This phenomenon is particularly prominent when the screen is off, causing the screen to show unexpected color noise.

[0050] In the existing technology, although the display effect is improved by optimizing pixel arrangement or material selection, the color separation problem in the off-screen state has not been effectively solved. Therefore, a new technical solution is urgently needed to fundamentally suppress the diffraction interference effect generated when external light sources are incident, eliminate the color separation phenomenon, and improve the optical performance of OLED screens in various usage scenarios.

[0051] In view of this, an embodiment of the present application provides a display panel. Figure 1 FIG. 1 shows a schematic diagram of a pixel region structure in which a dimming structure is provided in a display panel according to an embodiment of the present application. Figure 1 As shown, the display panel includes: a substrate 11; a light-emitting layer, including a plurality of light-emitting units 21 arranged in an array; a light-shielding layer 41, arranged on a side of the light-emitting layer away from the substrate 11, and the light-shielding layer 41 defines a plurality of opening areas corresponding to the plurality of light-emitting units 21. Figure 2A distribution diagram of a dimming structure corresponding to a first pixel opening proposed in an embodiment of the present application is shown, wherein the opening area includes a first pixel opening 51 and a second pixel opening 52 that are adjacently arranged. Optionally, the plurality of opening areas are arranged in an array along a row direction and a column direction, and the first pixel opening 51 and the second pixel opening 52 are adjacently arranged along the row direction and the column direction.

[0052] In an embodiment of the present application, the display panel also includes a plurality of dimming structures 43, the dimming structures 43 are arranged on a side of the light-emitting layer away from the substrate 11, and the plurality of dimming structures 43 are arranged at least corresponding to the first pixel opening 51, and the dimming structures 43 are used to adjust the diffraction fringes of the opening area corresponding to the dimming structure 43.

[0053] In the embodiment of the present application, the dimming structure 43 corresponding to the first pixel opening 51 is ensured to be different from the dimming structure 43 corresponding to the second pixel opening 52, so that the diffraction stripes of the first pixel opening 51 and the diffraction stripes of the second pixel opening 52 are differentiated, so that the main minimum of the diffraction stripes generated by the first pixel opening and the main maximum of the diffraction stripes generated by the second pixel opening are spatially superimposed on each other, thereby eliminating the color separation phenomenon.

[0054] Optionally, in the embodiment of the present application, Figure 2 As shown, only a dimming structure corresponding to the first pixel opening 51 can be set, and the dimming structure is set corresponding to the first pixel opening. The dimming structure is used to adjust the diffraction stripes corresponding to the first-level pixel opening so that the main minimum of the diffraction stripes generated by the first pixel opening and the main maximum of the diffraction stripes generated by the second pixel opening are spatially superimposed on each other.

[0055] Specifically, by setting the dimming structure 43 at the first pixel opening 51, when diffraction stripes are formed at the first pixel opening, the dimming structure 43 can change the positions of the light and dark stripes in the diffraction stripes, so that the main maximum of the diffraction stripes generated by the opening area where the dimming structure 43 is set becomes the main minimum, and the corresponding position of the diffraction stripes generated by the second pixel opening 52 where the dimming structure 43 is not set becomes the main maximum, so that the main minimum of the diffraction stripes generated by the first pixel opening 51 and the main maximum of the diffraction stripes generated by the second pixel opening 52 are superimposed on each other in space, forming a light intensity complementary effect, thereby offsetting the color deviation, making the diffraction stripes generated by different pixel openings of the display panel overlap in the observer's perspective, and effectively weakening the color separation phenomenon.

[0056] It should be noted that the main maximum of the diffraction stripes refers to the most prominent bright stripes in the diffraction light intensity distribution of the diffraction stripes, corresponding to the area where the light intensity reaches the local or global maximum value. In contrast, the main minimum of the diffraction stripes refers to the dark stripes with almost zero light intensity in the diffraction light intensity distribution of the diffraction stripes, corresponding to the position of complete destructive interference. The spatial superposition of the main maximum and the main minimum can effectively eliminate chromatic aberration, offset dispersion, and effectively weaken the color separation phenomenon.

[0057] In the embodiment of the present application, the color separation phenomenon generated by the display panel is Fraunhofer diffraction, wherein, when the opening area undergoes Fraunhofer diffraction, the diffraction fringes generated by the opening area provided with the dimming structure 43 and the opening area not provided with the dimming structure 43 are similar, but the size ratio of the diffraction fringes generated by the opening area provided with the dimming structure 43 is reduced, so that the main minimum value of the diffraction fringes generated by the first pixel opening 51 provided with the dimming structure 43 and the main maximum value of the diffraction fringes generated by the second pixel opening 52 not provided with the dimming structure 43 are superimposed, rather than superimposed with the same main maximum values. When the display panel is in a dark screen-off state, the external light is incident on the screen and then reflected from the opening area, and the azimuth angle corresponding to the main maximum value of the first pixel opening 51 and the azimuth angle corresponding to the main minimum value of the second pixel opening 52 are equal, thereby reducing the diffraction phenomenon (color separation phenomenon).

[0058] In some optional implementations, dimming structures 43 of different sizes may be provided at the first pixel opening 51 and the second pixel opening 52, respectively, so that the diffraction fringes generated by the first pixel opening 51 differ from the diffraction fringes generated by the second pixel opening 52, thereby achieving the superposition of the bright and dark positions of the two. Fig. 9 FIG. 4 shows a schematic diagram of the distribution of a first dimming structure and a second dimming structure proposed in an embodiment of the present application. Fig. 9 As shown, the dimming structure 43 includes a first dimming structure 433 and a second dimming structure 434, wherein the first dimming structure 433 is arranged corresponding to the first pixel opening 51, and the second dimming structure 434 is arranged corresponding to the second pixel opening 52. The maximum thickness of the first dimming structure 433 and the second dimming structure 434 are different, so that the main minimum value of the diffraction fringes generated by the first pixel opening 51 and the main maximum value of the diffraction fringes generated by the second pixel opening 52 are spatially superimposed on each other.

[0059] Optionally, the maximum thickness of the first dimming structure 433 is greater than the maximum thickness of the second dimming structure 434 . Exemplarily, the maximum thickness of the first dimming structure 433 is 10 μm, and the maximum thickness of the second dimming structure 434 is greater than or equal to 3 μm and less than or equal to 6 μm.

[0060] It is easy to understand that in the embodiments of the present application, multiple third dimming structures with different maximum thicknesses can also be set, and the multiple third dimming structures include even-numbered types of maximum thicknesses (for example, 2, 4, 6, 8, etc. even-numbered types), and the multiple third dimming structures are arranged in a one-to-one correspondence with the first pixel opening 51 and the second pixel opening 52, and the maximum thicknesses of adjacent third dimming structures are different from each other, so as to ensure that the diffraction stripes generated by the adjacent first pixel openings 51 and the second pixel openings 52 have different main maximum values ​​under the action of the third dimming structures with different maximum thicknesses, thereby superimposing the bright and dark positions of the diffraction stripes of the adjacent pixel openings.

[0061] In some optional embodiments, such as Figure 1 As shown, in order to ensure that the dimming structure 43 effectively adjusts the diffraction fringes of all the light of the first pixel opening 51, the orthographic projection of the dimming structure 43 on the substrate 11 at least covers the orthographic projection of the first pixel opening 51 on the substrate 11, wherein the orthographic projection of the dimming structure 43 on the substrate 11 may coincide with the orthographic projection of the first pixel opening 51 on the substrate 11, or may partially or completely cover the light shielding layer 41 surrounding the first pixel opening 51. In addition, in order to ensure that the dimming structure 43 corresponding to the first pixel opening 51 does not affect the diffraction fringes of the adjacent second pixel opening 52, the orthographic projections of the multiple dimming structures 43 on the substrate 11 do not overlap with the orthographic projections of the second pixel opening 52 on the substrate 11.

[0062] In some optional embodiments, the display panel also includes a color filter layer 42, which is arranged in the same layer as the shading layer 41 and filled in the opening area; the dimming structure 43 is arranged on the side of the color filter layer 42 away from the substrate 11, wherein the orthographic projection of the color filter layer 42 filled in the first pixel opening 51 on the substrate 11 is located inside the orthographic projection of the dimming structure 43 on the substrate 11 or coincides with the orthographic projection of the dimming structure 43 on the substrate 11.

[0063] In some optional embodiments, Figure 3 FIG. 1 shows a schematic diagram of a pixel region structure in which a color filter layer is multiplexed into a dimming structure according to an embodiment of the present application. Figure 3 As shown, in order to weaken the color separation phenomenon and simplify the film structure of the display panel, the color filter layer 42 filled in the first pixel opening 51 can be reused as the dimming structure 43.

[0064] In some optional embodiments, the thickness of the dimming structure 43 gradually decreases along the first direction, the maximum thickness of the dimming structure 43 is greater than the thickness of the light shielding layer 42, and the first direction is the direction from the center of the dimming structure 43 to the edge. Optionally, the cross-sectional shape of the dimming structure 43 along the first plane includes but is not limited to an arc, a straight line, or a combination of an arc and a straight line, and the first plane is a plane perpendicular to the color filter layer 42 and passing through the center of the color filter layer 42. Exemplarily, the cross-sectional shape of the dimming structure 43 along the first plane can be an ellipse, an inverted ellipse, a polygon, etc.

[0065] In some optional embodiments, the maximum thickness of the dimming structure 43 is less than or equal to 10 μm, and the width of the dimming structure 43 is greater than or equal to 10 μm and less than or equal to 20 μm. Exemplarily, the maximum thickness of the dimming structure 43 is 5.2 μm, and the width of the dimming structure 43 is 16.2 μm.

[0066] In some optional embodiments, the display panel further includes a flat layer 44, which is disposed on a side of the dimming structure 43 away from the substrate 11 and at least covers a surface of the dimming structure 43 away from the substrate 11, wherein, in order to ensure that the dimming structure 43 has an adjustment effect on the diffraction fringes of the opening area, the refractive index of the dimming structure 43 is greater than the refractive index of the flat layer 44. Optionally, the refractive index of the dimming structure 43 is 1.65, and the refractive index of the flat layer 44 is 1.53.

[0067] In some optional implementations, in order to further enhance the modulation effect of the dimming structure 43 on the diffraction fringes of the opening area and effectively suppress the color separation phenomenon, the plurality of dimming structures 43 can be respectively arranged corresponding to the first pixel opening 51 and the second pixel opening 52, and the diffraction fringes of different areas of the opening area are adjusted by the dimming structure of each opening area. Specifically, Figure 5 FIG. 1 shows a schematic diagram of the correspondence between a dimming structure and an opening area proposed in an embodiment of the present application. Figure 5 As shown, the opening area includes a central area 61 and a peripheral area 62 arranged around the central area 61, and the orthographic projection of the central area 61 on the substrate 11 coincides with the orthographic projection of the light-emitting unit 21 on the substrate 11. The central area 61 is the main light-emitting area corresponding to the light-emitting unit 21 in the opening area, and the peripheral area 62 is the secondary light-emitting area in the opening area. The diffraction stripes of the peripheral area 62 and the central area 61 are modulated by the dimming structure 43, so that the bright stripes of the diffraction stripes formed by the peripheral area 62 and the dark stripes of the diffraction stripes formed by the central area 61 are superimposed on each other, thereby eliminating the color separation phenomenon of each opening area.

[0068] Specifically, if Figure 5 As shown, the dimming structure 43 includes a first part 431 and a second part 432 arranged around the first part 431, and the first part 431 and the second part 432 are used to adjust the diffraction stripes of the opening area corresponding to the dimming structure 43, so that the main minimum of the diffraction stripes generated in the central area 61 and the main maximum of the diffraction stripes generated in the peripheral area 62 are spatially superimposed on each other.

[0069] In some optional embodiments, Figure 4 FIG. 4 shows a schematic diagram of a pixel region structure in which a dimming structure is set in another display panel according to an embodiment of the present application. Figure 4 and Figure 5 As shown, the orthographic projection of the first portion 431 on the substrate 11 is located inside the orthographic projection of the central area 61 on the substrate; the orthographic projection of the second portion 432 on the substrate 11 at least partially overlaps with the orthographic projection of the peripheral area 62 on the substrate 11, and does not overlap with the orthographic projection of the central area 61 on the substrate 11. The orthographic projection of the second portion 432 on the substrate 11 may coincide with the peripheral area 62, and at this time, the orthographic projection of the second portion 432 on the substrate 11 does not overlap with the orthographic projections of the central area 61 and the light shielding layer 41 on the substrate 11; the orthographic projection of the second portion 432 on the substrate 11 may also partially overlap with the peripheral area 62, that is, the orthographic projection of the second portion 432 on the substrate 11 may partially overlap with the orthographic projections of the light shielding layer 41 and the peripheral area 62 on the substrate 11, and it is sufficient to ensure that the orthographic projection of the second portion 432 on the substrate 11 does not overlap with the central area 61.

[0070] In some optional embodiments, in order to ensure that the second part 432 and the first part 431 have different adjustment effects on the diffraction stripes in different areas of the opening area, the thickness of the second part gradually decreases along the first direction, and the thickness of the first part remains unchanged along the first direction, and the first direction is the direction from the center of the dimming structure to the edge; the width of the second part gradually increases along the second direction, and the width of the first part remains unchanged along the second direction, and the second direction is the arrangement direction of the substrate pointing to the light-emitting layer. Figure 6 FIG. 4 shows a cross-sectional structural diagram of a dimming structure proposed in an embodiment of the present application. Figure 6 As shown, the dimming structure 43 includes a first surface 71 and a second surface 72 arranged relatively along the second direction, and a climbing surface 73 connecting the first surface 71 and the second surface 72. The first surface 71 is arranged away from the substrate 11 relative to the second surface 72, and the width of the first surface 71 is smaller than the width of the second surface 72.

[0071] In some optional implementations, the slope of the climbing surface 73 is greater than or equal to 5° and less than or equal to 25°. Preferably, the slope of the climbing surface 73 is 17°.

[0072] Optionally, the orthographic projection shape of the climbing surface on the first plane is a straight line, an arc, or a combination of a straight line and an arc, and the first plane is perpendicular to the first surface and is a plane passing through the center point of the first surface. Figure 7 FIG. 4 shows a cross-sectional structure diagram of another dimming structure proposed in an embodiment of the present application. Figure 6 and Figure 7 As shown, the cross-sectional shape of the second portion 432 along the first plane may be a fan shape or a triangle.

[0073] In some optional implementations, in order to improve the effect of eliminating the color separation phenomenon, the position difference of the main maximum value of the diffraction fringes in the peripheral area 62 and the central area 61 can be further amplified by distinguishing the refractive index of the first part 431 and the second part 432 in the dimming structure 43, and the refractive index of the second part 432 is greater than the refractive index of the first part 431. Optionally, Figure 8 FIG. 4 shows a schematic diagram of a pixel region structure in which a flat layer is reused as the first part according to an embodiment of the present application. Figure 8 As shown, the planar layer 44 fills the area enclosed by the second portion 432 in the dimming structure 43 to be reused as the first portion 431 , and the refractive index of the second portion 432 is greater than the refractive index of the planar layer 44 .

[0074] In some optional embodiments, the dimming structure 43 includes the first portion 431 and the second portion 432 as described above, and the dimming structures 43 of different sizes are arranged at the first pixel opening 51 and the second pixel opening 52, so that the diffraction fringes generated by the first pixel opening 51 and the diffraction fringes generated by the second pixel opening 52 are different, and the diffraction fringes in the central area 61 and the peripheral area 62 in each pixel opening are different, thereby effectively improving the effect of eliminating color separation. Specifically, Fig. 9As shown, the dimming structure 43 includes a first dimming structure 433 and a second dimming structure 434, wherein the first dimming structure 433 is arranged corresponding to the first pixel opening 51, and the second dimming structure 434 is arranged corresponding to the second pixel opening 52. The maximum thickness of the first dimming structure 433 and the second dimming structure 434 are different, so that the main minimum value of the diffraction fringes generated by the first pixel opening 51 and the main maximum value of the diffraction fringes generated by the second pixel opening 52 are spatially superimposed on each other. Optionally, the maximum thickness of the first dimming structure 433 (that is, the maximum thickness of the second part 432) is greater than the maximum thickness of the second dimming structure 434.

[0075] It is easy to understand that in the embodiment of the present application, multiple third dimming structures with different maximum thicknesses can also be set, and the third dimming structure includes the first part 431 and the second part 432 as described above, and the multiple third dimming structures include even-numbered types of maximum thicknesses (for example, 2, 4, 6, 8, etc. even-numbered types), and the multiple third dimming structures are arranged in a one-to-one correspondence with the first pixel opening 51 and the second pixel opening 52, and the maximum thicknesses of adjacent third dimming structures are different from each other, so as to ensure that the diffraction stripes generated by the adjacent first pixel openings 51 and the second pixel openings 52 have different main maximum values ​​under the action of the third dimming structures with different maximum thicknesses, thereby superimposing the bright and dark positions of the diffraction stripes of the adjacent pixel openings.

[0076] The present application provides a display panel and a display device, wherein the display panel comprises: a substrate; a light-emitting layer, comprising a plurality of light-emitting units arranged in an array; a shading layer, arranged on a side of the light-emitting layer away from the substrate, the shading layer defining a plurality of opening areas corresponding to the plurality of light-emitting units, the opening areas comprising a first pixel opening and a second pixel opening arranged adjacent to each other; a plurality of dimming structures, arranged on a side of the light-emitting layer away from the substrate, and the plurality of dimming structures are arranged at least corresponding to the first pixel opening, the dimming structures being used to adjust the diffraction fringes of the opening areas corresponding to the dimming structures, so that the main minimum of the diffraction fringes generated by the first pixel opening and the main maximum of the diffraction fringes generated by the second pixel opening are spatially superimposed on each other. The present application sets up multiple dimming structures corresponding to the first pixel openings, so that the diffraction stripes generated by the first pixel openings change compared to the diffraction stripes generated by the second pixel openings. The main minimum of the diffraction stripes generated by the first pixel openings and the main maximum of the diffraction stripes generated by the second pixel openings are superimposed on each other in space, forming a light intensity complementary effect, thereby offsetting the color shift and making the diffraction stripes generated by different pixel openings of the display panel overlap in the observer's perspective, effectively weakening the color separation phenomenon.

[0077] Based on the same inventive concept, an embodiment of the present application discloses a display device, which includes the display panel described in the embodiment of the present application.

[0078] In some optional implementations, the display device is a product with an image display function. Optionally, the display device can be used to display static images, such as pictures, photos, etc.; the display device can also be used to display dynamic images, such as videos, game screens, etc.

[0079] In some optional embodiments, the display device includes but is not limited to a laptop computer, a mobile phone, a wireless device, a personal data assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a television monitor, a flat panel display, a computer monitor, a car display, a navigator, a cockpit controller and / or display, a display of a camera view, an electronic photograph, an electronic billboard or sign, a projector, packaging and aesthetic structures, etc.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] In the description of this specification, it should be understood that the terms "center", "thickness", "up", "down", "front", "back", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0082] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0083] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0084] The above application provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0085] The term "one embodiment", "embodiment" or "one or more embodiments" herein means that a particular feature, structure or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present application. In addition, please note that the examples of the term "in one embodiment" here do not necessarily all refer to the same embodiment.

[0086] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0087] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0088] The display panel and the display device provided by the present application are introduced in detail above. The principles and implementation methods of the present application are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A light-emitting layer, comprising a plurality of light-emitting units arranged in an array; A light shielding layer is arranged on a side of the light emitting layer away from the substrate, the light shielding layer defines a plurality of opening areas arranged corresponding to the plurality of light emitting units, the opening areas include a first pixel opening and a second pixel opening arranged adjacent to each other; A plurality of dimming structures are arranged on a side of the light-emitting layer away from the substrate, and the plurality of dimming structures are arranged at least corresponding to the first pixel opening. The dimming structures are used to adjust the diffraction stripes of the opening area corresponding to the dimming structures so that the main minimum of the diffraction stripes generated by the first pixel opening and the main maximum of the diffraction stripes generated by the second pixel opening are spatially superimposed on each other.

2. The display panel according to claim 1, characterized in that: The dimming structure is arranged corresponding to the first pixel opening, and the dimming structure is used to adjust the diffraction fringes with the first-level pixel opening.

3. The display panel according to claim 1, characterized in that: The dimming structure includes a first dimming structure and a second dimming structure. The first dimming structure is arranged corresponding to the first pixel opening, and the second dimming structure is arranged corresponding to the second pixel opening. The maximum thickness of the first dimming structure and the second dimming structure are different.

4. The display panel according to any one of claims 1 to 3, characterized in that: The orthographic projection of the dimming structure on the substrate at least covers the orthographic projection of the first pixel opening on the substrate, and the orthographic projections of the plurality of dimming structures on the substrate do not overlap with the orthographic projection of the second pixel opening on the substrate.

5. The display panel according to claim 4, characterized in that: The display panel further includes a color filter layer, which is disposed on the same layer as the light shielding layer and is filled in the opening area; The dimming structure is arranged on a side of the color filter layer facing away from the substrate, wherein the orthographic projection of the color filter layer filled in the first pixel opening on the substrate is located inside the orthographic projection of the dimming structure on the substrate or coincides with the orthographic projection of the dimming structure on the substrate.

6. The display panel according to claim 4, characterized in that: The display panel further includes a color filter layer, which is disposed in the same layer as the light shielding layer and filled in the opening area, wherein the color filter layer filled in the first pixel opening is reused as the dimming structure.

7. The display panel according to claim 4, characterized in that: The thickness of the dimming structure gradually decreases along a first direction, the maximum thickness of the dimming structure is greater than the thickness of the light shielding layer, and the first direction is a direction from the center of the dimming structure to the edge.

8. The display panel according to claim 1, characterized in that: The display panel further includes a flat layer, which is disposed on a side of the dimming structure away from the substrate and at least covers a surface of the dimming structure away from the substrate, and the refractive index of the dimming structure is greater than that of the flat layer.

9. The display panel according to any one of claims 1 to 3, characterized in that: The opening area includes a central area and a peripheral area arranged around the central area, and the orthographic projection of the central area on the substrate coincides with the orthographic projection of the light-emitting unit on the substrate; The multiple dimming structures are respectively arranged corresponding to the first pixel opening and the second pixel opening, and the dimming structure includes a first part and a second part arranged around the first part, and the first part and the second part are used to adjust the diffraction stripes of the opening area corresponding to the dimming structure so that the main minimum of the diffraction stripes generated in the central area and the main maximum of the diffraction stripes generated in the peripheral area are spatially superimposed on each other.

10. The display panel according to claim 9, characterized in that: The orthographic projection of the first portion on the substrate is located inside the orthographic projection of the central area on the substrate; An orthographic projection of the second portion on the substrate at least partially overlaps with an orthographic projection of the peripheral region on the substrate, and does not overlap with an orthographic projection of the central region on the substrate.

11. The display panel according to claim 9, characterized in that: The thickness of the second portion gradually decreases along a first direction, and the thickness of the first portion remains unchanged along the first direction, wherein the first direction is a direction from the center of the dimming structure to the edge; The width of the second portion gradually increases along a second direction, and the width of the first portion remains unchanged along the second direction. The second direction is an arrangement direction of the substrate pointing toward the light-emitting layer.

12. The display panel according to claim 11, characterized in that: The dimming structure includes a first surface and a second surface arranged opposite to each other along the second direction, and a climbing surface connecting the first surface and the second surface. The first surface is arranged away from the substrate relative to the second surface, and the width of the first surface is smaller than the width of the second surface.

13. The display panel according to claim 12, characterized in that: The slope of the climbing surface is greater than or equal to 5° and less than or equal to 25°.

14. The display panel according to claim 9, characterized in that: The display panel further comprises a flat layer, wherein the flat layer is arranged on a side of the dimming structure away from the substrate; The planar layer fills the area enclosed by the second portion in the dimming structure to be reused as the first portion, and the refractive index of the second portion is greater than the refractive index of the planar layer.

15. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1-14.

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