Display panel and display apparatus

Abstract

The present application provides a display panel and a display apparatus. The display panel comprises a substrate, a light-emitting structure layer, a touch layer, a light filtering layer, and a light shielding layer. The light-emitting structure layer is located on a side of the substrate and comprises a plurality of sub-pixels. The touch layer is located on a side of the light-emitting structure layer away from the substrate, and the touch layer comprises a first electrode layer and a second electrode layer located on a side of the first electrode layer away from the substrate. At least a portion of the light filtering layer is located between the first electrode layer and the second electrode layer. The light shielding layer is located on a side of the light-emitting structure layer away from the substrate. The light shielding layer is provided with a plurality of openings, and an orthographic projection of each of the sub-pixels on the substrate at least partially overlaps with an orthographic projection of one of the openings on the substrate.

Description

Display panel and display device Technical Field

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

[0002] Traditional OLED display panels use polarizers to reduce reflection and increase contrast. To improve the folding performance of the display panel, the polarizer can be removed and a filter layer can be formed directly on the encapsulation layer of the display panel.

[0003] The existing OLED display panels are relatively thick, which is not conducive to making the display panels thinner and lighter. Summary of the Invention

[0004] A first aspect of this application provides a display panel comprising: a substrate; a light-emitting structure layer located on one side of the substrate and including a plurality of sub-pixels; a touch layer located on the side of the light-emitting structure layer away from the substrate; the touch layer including a first electrode layer and a second electrode layer located on the side of the first electrode layer away from the substrate; a light-filtering layer located at least partially between the first electrode layer and the second electrode layer; and a light-shielding layer located on the side of the light-emitting structure layer away from the substrate, the light-shielding layer having a plurality of openings, wherein the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of one of the openings on the substrate.

[0005] In one embodiment, the portion of the filter layer located between the first electrode layer and the second electrode layer is a continuous film.

[0006] In one embodiment, the filter layer includes at least three different colored filter portions, and the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of a filter portion on the substrate; the filter layer also includes at least one auxiliary layer, each auxiliary layer including multiple extensions, each extension and a filter portion being an integral structure; the orthographic projections of the first electrode layer and the second electrode layer on the substrate both fall within the orthographic projection of the auxiliary layer on the substrate; at least one auxiliary layer is provided between the first electrode layer and the second electrode layer.

[0007] In one embodiment, an auxiliary layer is provided between the first electrode layer and the second electrode layer, and the thickness of the extension portion in the auxiliary layer is the same as the thickness of the filter portion connected thereto.

[0008] In one embodiment, all the extensions in the auxiliary layer are the same color.

[0009] In one embodiment, the filter layer includes at least two auxiliary layers, the extensions of the same auxiliary layer being of the same color; the orthographic projections of at least two of the auxiliary layers on the substrate have an overlapping region, and the orthographic projections of the first electrode layer and the second electrode layer on the substrate fall within the overlapping region; the light-shielding layer includes each of the auxiliary layers.

[0010] In one embodiment, an auxiliary layer is provided between the first electrode layer and the second electrode layer, and other auxiliary layers are located on the side of the second electrode layer away from the substrate.

[0011] In one embodiment, the number of auxiliary layers is the same as the number of colors of the filter portion, all the auxiliary layers have overlapping regions in their orthogonal projections on the substrate, and the orthogonal projections of the first electrode layer and the second electrode layer on the substrate fall within the overlapping region.

[0012] In one embodiment, the filter layer comprises only one auxiliary layer, and the light-shielding layer is located on the side of the second electrode layer away from the substrate.

[0013] In one embodiment, the light-shielding layer covers the second electrode layer.

[0014] In one embodiment, the filter layer is a gray filter layer, which is entirely located between the first electrode layer and the second electrode layer; the gray filter layer is configured to allow light emitted by all sub-pixels to pass through.

[0015] In one embodiment, the light-shielding layer is located on the side of the second electrode layer away from the substrate and covers the second electrode layer.

[0016] In one embodiment, the display panel further includes a planarization layer located on the side of the filter layer, the light-shielding layer, and the second electrode layer away from the substrate.

[0017] In one embodiment, the first electrode layer includes a plurality of first connection portions; the second electrode layer includes a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of second connection portions; the portion of the filter layer located between the first electrode layer and the second electrode layer is provided with a through hole, the first connection portion connects two adjacent first touch electrodes through the through hole; the second connection portion connects two adjacent second touch electrodes.

[0018] A second aspect of this application provides another display panel, comprising: a substrate; a light-emitting structure layer located on one side of the substrate, including a plurality of sub-pixels; a touch layer located on the side of the light-emitting structure layer away from the substrate; the touch layer including a first electrode layer and a second electrode layer located on the side of the first electrode layer away from the substrate; a filter layer at least partially located on the side of the second electrode layer away from the substrate; the filter layer including at least three different color filter portions, wherein the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of a filter portion on the substrate; the filter layer further including at least two auxiliary layers, wherein the at least two auxiliary layers are located on the side of the second electrode layer away from the substrate, each auxiliary layer including a plurality of extension portions, each extension portion and a filter portion being integrally formed; the orthographic projections of at least two auxiliary layers on the substrate have an overlapping region, and the orthographic projections of the first electrode layer and the second electrode layer on the substrate both fall within the orthographic projections of the auxiliary layers on the substrate; and an insulating layer at least partially located between the first electrode layer and the second electrode layer.

[0019] A third aspect of this application provides yet another display panel comprising: a substrate; a light-emitting structure layer located on one side of the substrate and including a plurality of sub-pixels; a touch layer located on the side of the light-emitting structure layer away from the substrate; the touch layer including a first electrode layer and a second electrode layer located on the side of the first electrode layer away from the substrate; a filter layer at least partially located on the side of the second electrode layer away from the substrate; the filter layer including at least three different color filter portions, wherein the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of a filter portion on the substrate; the filter layer further including at least one auxiliary layer, each of the auxiliary layers... The auxiliary layer includes multiple extensions, each of which is integrally formed with a filter. The orthographic projections of the first electrode layer and the second electrode layer on the substrate both fall within the orthographic projection of the auxiliary layer on the substrate. An insulating layer is located at least partially between the first electrode layer and the second electrode layer. The orthographic projection of the insulating layer on the substrate falls within the orthographic projection of the auxiliary layer on the substrate. A light-shielding layer is located on the side of the light-emitting structure layer away from the substrate. The light-shielding layer has multiple openings, and the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of one of the openings on the substrate.

[0020] In one embodiment, an auxiliary layer is provided between the first electrode layer and the light-emitting structure layer, and the thickness of the extension portion in the auxiliary layer is the same as the thickness of the filter portion connected thereto.

[0021] In one embodiment, at least one auxiliary layer is provided on the side of the second electrode layer away from the substrate; the orthographic projections of the auxiliary layer located between the first electrode layer and the light-emitting structure layer and the auxiliary layer located on the side of the second electrode layer away from the substrate overlap on the substrate, and the orthographic projections of the first electrode layer and the second electrode layer on the substrate fall within the overlapping area; the light-shielding layer includes each of the auxiliary layers.

[0022] A fourth aspect of this application provides a display device, the display device including the display panel described above.

[0023] The display panel provided in this application provides a filter layer that is at least partially disposed between the first electrode layer and the second electrode layer. This filter layer is reused as an insulating layer to insulate the first and second electrode layers, reducing the number of film layers, simplifying the structure, and decreasing the thickness of the display panel. It also simplifies the manufacturing process and reduces its complexity. Furthermore, since the filter layer is an organic layer, compared to an inorganic insulating layer between the first and second electrode layers, it mitigates the problem of stress concentration in the inorganic insulating layer that leads to bending and cracking of the display panel.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Figures 1 to 9 are schematic structural diagrams of a display panel provided in one embodiment of this application; Figure 10 is a partial cross-sectional view of the touch layer of a display panel provided in one embodiment of this application, taken along one section line; Figure 11 is a partial cross-sectional view of the touch layer of the display panel shown in Figure 10, taken along another section line; Figure 12 is a spectral transmittance curve of the gray filter layer of a display panel provided in one embodiment of this application; Figure 13 is a schematic structural diagram of a display panel provided in another embodiment of this application; Figures 14 to 20 are schematic structural diagrams of a display panel provided in yet another embodiment of this application. Detailed Implementation

[0026] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0027] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0028] The display panel and display device of the present application embodiments will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.

[0029] This application provides a display panel. As shown in Figures 1 and 5, the display panel includes a substrate 10, a light-emitting structure layer 20, a touch layer 30, a light filter layer 40, and a light-shielding layer 50.

[0030] The light-emitting structure layer 20 is located on one side of the substrate 10 and includes a plurality of sub-pixels 21. The touch layer 30 is located on the side of the light-emitting structure layer 20 away from the substrate 10, and includes a first electrode layer 31 and a second electrode layer 32 located on the side of the first electrode layer 31 away from the substrate 10. A light-filtering layer 40 is at least partially located between the first electrode layer 31 and the second electrode layer 32. A light-shielding layer 50 is located on the side of the light-emitting structure layer 20 away from the substrate 10, and the light-shielding layer 50 has a plurality of openings 501, wherein the orthographic projection of each sub-pixel 21 on the substrate 10 at least partially overlaps with the orthographic projection of one of the openings 501 on the substrate 10.

[0031] The display panel of this application, by disposing at least a portion of the light filter layer 40 between the first electrode layer 31 and the second electrode layer 32, reuses the light filter layer 40 as an insulating layer to insulate the first electrode layer 31 and the second electrode layer 32. This reduces the number of film layers in the display panel, simplifies its structure, and reduces its thickness. It also simplifies the manufacturing process and reduces its complexity. Furthermore, since the light filter layer 40 is an organic layer, compared to an inorganic insulating layer between the first electrode layer 31 and the second electrode layer 32, it mitigates the problem of stress concentration in the inorganic insulating layer that leads to bending and cracking of the display panel.

[0032] In one embodiment, as shown in FIG1, the substrate 10 may be a flexible substrate. The material of the flexible substrate may include one or more of polyimide, polyethylene terephthalate, polycarbonate, and organic resin materials, wherein the organic resin material may include epoxy resin, triazine, silicone resin, or polyimide, etc. In other embodiments, the substrate 10 may be a rigid substrate, including any one of glass substrates, quartz substrates, sapphire substrates, etc.

[0033] In one embodiment, the display panel further includes a driving circuit layer located between the substrate and the light-emitting structure layer. The driving circuit layer includes a plurality of pixel circuits, which drive sub-pixels. Each pixel circuit corresponds one-to-one with a sub-pixel, and each pixel circuit drives its corresponding sub-pixel.

[0034] In one embodiment, the pixel circuit includes a thin-film transistor. The thin-film transistor may include an active layer, a gate, a first electrode, and a second electrode. One of the first and second electrodes is a source, and the other is a drain. The pixel circuit may also include a capacitor, which includes a first capacitor plate and a second capacitor plate located on the side of the first capacitor plate facing away from the substrate. The pixel circuit layer may also include multiple signal lines, such as scan signal lines, data signal lines, power signal lines, etc.

[0035] In one embodiment, as shown in FIG1, each sub-pixel 21 of the light-emitting structure layer 20 includes a first electrode 211, a light-emitting material layer 212 located on the side of the first electrode 211 away from the substrate 10, and a second electrode 213 located on the side of the light-emitting material layer 212 away from the substrate 10. One of the first electrode 211 and the second electrode 213 is an anode, and the other is a cathode. In some embodiments, the first electrode 211 is an anode, the second electrode 213 is a cathode, and the cathode may be a common electrode; the light-emitting material layer 212 is an organic light-emitting material layer.

[0036] In one embodiment, the light-emitting structure layer 20 includes at least three sub-pixels 21 with different light-emitting colors. For example, the light-emitting structure layer 20 includes three sub-pixels with different light-emitting colors: a sub-pixel with a blue light-emitting color, a sub-pixel with a green light-emitting color, and a sub-pixel with a red light-emitting color.

[0037] In one embodiment, as shown in Figures 1 and 5, the display panel further includes a pixel defining layer 70. The pixel defining layer 70 is located on the side of the driving circuit layer away from the substrate 10, and on the side of the first electrode 211 away from the substrate 10. The pixel defining layer 70 has a plurality of pixel openings, which define the light-emitting area of ​​each sub-pixel 21 within a specific area, preventing light crosstalk between adjacent pixels and improving image clarity and resolution. The pixel openings correspond one-to-one with the sub-pixels 21, and each pixel opening exposes a portion of the surface of the first electrode 211 of the corresponding sub-pixel 21. The second electrode and the light-emitting material layer are at least partially located within the pixel opening.

[0038] In one embodiment, as shown in Figures 1 and 5, the display panel further includes an encapsulation layer 60 located on the side of the light-emitting structure layer 20 away from the substrate 10. The encapsulation layer 60 may be a thin-film encapsulation layer, comprising alternating organic and inorganic material layers, wherein the film layer with the greatest distance from the substrate 10 is an inorganic material layer. In some embodiments, the encapsulation layer 60 includes two inorganic material layers and an organic material layer located between the two inorganic material layers.

[0039] In one embodiment, as shown in Figures 1, 10, and 11, the first electrode layer 31 includes a plurality of first connecting portions 311. The second electrode layer 32 includes a plurality of first touch electrodes 322, a plurality of second touch electrodes 323, and a plurality of second connecting portions 321. The filter layer 40 has through-holes 33 in the portion between the first electrode layer 31 and the second electrode layer 32. The first connecting portions 311 connect adjacent first touch electrodes 322 through the through-holes 33, and the second connecting portions 321 connect adjacent second touch electrodes 323. The filter layer 40 can ensure electrical insulation between the first connecting portions 311 and the second connecting portions 321, preventing short circuits between the first and second touch electrodes. In some embodiments, the plurality of first touch electrodes are arranged in multiple rows, with each row including multiple first touch electrodes; the plurality of second touch electrodes are arranged in multiple columns, with each row including multiple second touch electrodes. In other embodiments, the first electrode layer may include a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of first connecting portions, with the first connecting portions connecting adjacent first touch electrodes. The second electrode layer may include a plurality of second connecting portions, with the second connecting portions connecting adjacent second touch electrodes through through-holes. Alternatively, the first electrode layer may include a plurality of first touch electrodes and a plurality of first connecting portions, with the first connecting portions connecting adjacent first touch electrodes. The second electrode layer may include a plurality of second touch electrodes and a plurality of second connecting portions, with the second connecting portions connecting adjacent second touch electrodes.

[0040] In one embodiment, as shown in Figures 1 and 5, the portion of the filter layer 40 located between the first electrode layer 31 and the second electrode layer 32 is a continuous film. A continuous film means that, except for the through-holes connecting the first connection portion 311 to the first touch electrode, the remaining portion of the filter layer 40 is a continuous film. Since the filter layer 40 is made of organic material, replacing the inorganic insulating layer between the first electrode layer 31 and the second electrode layer 32 with a continuous filter layer 40 reduces the risk of cracking or film peeling when the display panel is folded or bent, thus extending the lifespan of the display panel.

[0041] In one embodiment, as shown in Figures 1 and 5, the filter layer 40 includes a plurality of filter portions 41, and each sub-pixel 21 corresponds one-to-one with a filter portion 41. The orthographic projection of each sub-pixel 21 on the substrate 10 at least partially overlaps with the orthographic projection of the corresponding filter portion 41 on the substrate 10. Further, the orthographic projection of each sub-pixel 21 on the substrate 10 falls within the orthographic projection of the corresponding filter portion 41 on the substrate 10.

[0042] In one embodiment, the filter layer 40 includes at least three different colored filter portions 41, and the color types of the filter portions 41 are the same as the emission colors of the sub-pixels 21, with each filter portion 41 having the same color as the emission color of its corresponding sub-pixel 21. In some embodiments, the light-emitting structure layer 20 includes a sub-pixel with a blue emission color, a sub-pixel with a green emission color, and a sub-pixel with a red emission color, and the filter portions 41 include a red filter portion 411, a green filter portion 412, and a blue filter portion 413.

[0043] In one embodiment, as shown in FIG1, the filter layer 40 further includes at least one auxiliary layer 42. Each auxiliary layer 42 includes multiple extensions 4211, and each extension 4211 is integrally formed with a filter portion 41. The orthographic projections of the first electrode layer 31 and the second electrode layer 32 on the substrate 10 both fall within the orthographic projection of the auxiliary layer 42 on the substrate 10. At least one auxiliary layer 42 is provided between the first electrode layer 31 and the second electrode layer 32. The extensions 4211 of the auxiliary layer 42 are integrally formed with the filter portion 41, that is, the auxiliary layer 42 and the filter portion 41 can be formed simultaneously in a single patterning process, which helps to simplify the fabrication process.

[0044] In one embodiment, as shown in FIG1, the filter layer 40 includes only one auxiliary layer 42, which includes multiple extensions 4211. The multiple extensions 4211 are connected to the filter layer 411 to form a continuous film layer. The extensions 4211 and the filter layer 411 are a continuous film layer, meaning that except for the pixel openings provided at the positions corresponding to the sub-pixels 21 with different colors from the filter layer 411, the extensions 4211 and other parts of the filter layer 411 are connected to form a continuous film layer. The filter layers 412 and 413 are film layers including multiple block-shaped regions. The multiple block-shaped regions of the filter layers 412 and 413 are respectively located within the pixel openings in the continuous film layer formed by the extensions 4211 and the filter layer 411.

[0045] In one embodiment, the filter layer 40 includes at least two auxiliary layers 42. In the embodiment shown in FIG5, the filter layer 40 includes three auxiliary layers, one auxiliary layer 421 including multiple extensions 4211, one auxiliary layer 422 including multiple extensions 4221, and another auxiliary layer 423 including multiple extensions 4231. When the filter layer 40 includes at least two auxiliary layers 42, each auxiliary layer 42 is connected to the filter portion 41 corresponding to its color to form a continuous film layer.

[0046] In one embodiment, as shown in Figures 1 and 5, an auxiliary layer 42 is provided between the first electrode layer 31 and the second electrode layer 32, and the thickness of the extension portion in the auxiliary layer 42 is the same as the thickness of the filter portion 41 connected thereto. Having the same thickness for the extension portion and the filter portion 41 connected thereto improves the thickness uniformity of the filter layer 40 located between the first electrode layer 31 and the second electrode layer 32, facilitating the subsequent formation of the second electrode layer 32 on the filter layer 40.

[0047] Furthermore, as shown in FIG1, all extensions 4211 in the auxiliary layer 42 located between the first electrode layer 31 and the second electrode layer 32 are of the same color. Thus, all extensions 4211 of the auxiliary layer 42 located between the first electrode layer 31 and the second electrode layer 32 can be formed simultaneously in a single patterning process, which is beneficial for improving the thickness uniformity of the auxiliary layer 42. In some embodiments, the extensions 4211 located between the first electrode layer 31 and the second electrode layer 32 may all be red, green, or blue. As shown in Figure 1, the auxiliary layer 42 and the filter portion 411 are the same color and both are red, and the green filter portion 412 and the blue filter portion 413 are located within the pixel opening of the continuous film layer formed by the auxiliary layer 42 and the red filter portion 411; or, as shown in Figure 2, the auxiliary layer 42 and the filter portion 412 are the same color and both are green, and the red filter portion 411 and the blue filter portion 413 are located within the pixel opening of the continuous film layer formed by the auxiliary layer 42 and the green filter portion 412; or, as shown in Figure 3, the auxiliary layer 42 and the filter portion 413 are the same color and both are blue, and the red filter portion 411 and the green filter portion 412 are located within the pixel opening of the continuous film layer formed by the auxiliary layer 42 and the blue filter portion 413.

[0048] In other embodiments, as shown in FIG4, the extensions in the auxiliary layer located between the first electrode layer 31 and the second electrode layer 32 may also have different colors, and the extensions and the filter portion 41 of the same color are integral structures. The extension 4211 of the auxiliary layer 42 is integrally connected with the red filter portion 411, the extension 4221 of the auxiliary layer 42 is integrally connected with the green filter portion 412, and the extension 4231 of the auxiliary layer 42 is integrally connected with the blue filter portion 413. In other embodiments, the extensions and filter portions of the auxiliary layer are separate structures, and the colors of different extensions of the auxiliary layer may be the same or different, and can be set to red, green, blue or other colors as needed.

[0049] In one embodiment, as shown in FIG1, the light filter layer 40 includes only one auxiliary layer 42, and the light-shielding layer 50 is located on the side of the second electrode layer 32 away from the substrate 10. The light-shielding layer 50 can prevent the second electrode layer 32 located above the auxiliary layer 42 from reflecting incident ambient light, thereby improving the dark-state effect of the display panel and enhancing the user experience. In some embodiments, the material of the light-shielding layer 50 can be a light-absorbing material or a light-reflecting material, such as an organic material doped with black particles, black photoresist, black resin, or a metal material.

[0050] In one embodiment, the light-shielding layer 50 covers the second electrode layer 32. Thus, the light-shielding layer 50 is reused as an insulating layer that protects the second electrode layer 32, eliminating the need for an additional insulating layer to protect the second electrode layer 32 and simplifying the structure of the display substrate.

[0051] In one embodiment, as shown in FIG5, the light filter layer 40 includes at least two auxiliary layers 42, the extensions in the same auxiliary layer 42 are of the same color, and the orthographic projections of at least two auxiliary layers 42 on the substrate 10 overlap, with the orthographic projections of the first electrode layer 31 and the second electrode layer 32 on the substrate 10 falling within this overlapping area. The light shielding layer 50 includes each of the auxiliary layers 42. Thus, the auxiliary layers 42 are reused as the light shielding layer 50. In the manufacturing process of the display panel, the extensions can be formed by changing the pattern of the mask of the light filter layer 70, thereby saving the mask used to form the light shielding layer 50, thus reducing the number of steps in the process flow and lowering the process cost. Furthermore, reusing the auxiliary layers 42 as the light shielding layer 50 can reduce the distance between the sub-pixel 21 and the opening 501 on the light shielding layer 50, which is beneficial for increasing the light extraction efficiency of the display panel and reducing the thickness of the display panel.

[0052] In one embodiment, the number of auxiliary layers 42 is the same as the number of colors of the filter layer 41. All the orthographic projections of the auxiliary layers 42 on the substrate 10 overlap, and the orthographic projections of the first electrode layer 31 and the second electrode layer 32 on the substrate 10 fall within this overlapping area. In the embodiment shown in FIG. 5, the auxiliary layers 42 include a red auxiliary layer 421, a green auxiliary layer 422, and a blue auxiliary layer 423. The orthographic projections of the first electrode layer 31 and the second electrode layer 32 on the substrate 10 both fall within the overlapping area of ​​the orthographic projections of the red auxiliary layer 421, the green auxiliary layer 422, and the blue auxiliary layer 423 on the substrate 10. The red auxiliary layer 421, the green auxiliary layer 422, and the blue auxiliary layer 423 are reused as a light-shielding layer 50. Thus, the light-shielding layer 50 effectively prevents light crosstalk between adjacent sub-pixels and effectively reduces the amount of incident ambient light reflected.

[0053] In one embodiment, as shown in FIG5, an auxiliary layer 42 is provided between the first electrode layer 31 and the second electrode layer 32, and the other auxiliary layers 42 are located on the side of the second electrode layer 32 away from the substrate 10. The auxiliary layer 42 located on the side of the second electrode layer 32 away from the substrate 10 can serve as a protective film layer for the second electrode layer 32, and can reduce the amount of incident ambient light reflected by the second electrode layer 32, eliminating the need for an additional light-shielding layer above the second electrode layer 32, thereby simplifying the manufacturing process and structural complexity of the display panel. In this embodiment, the auxiliary layer 42 located on the side of the second electrode layer 32 away from the substrate 10 and the filter portion 41 of the same color are connected to form a single film layer, and pixel openings are provided at positions corresponding to sub-pixels 21 of different colors.

[0054] In one embodiment, as shown in FIG5, the filter layer 40 includes a red auxiliary layer 421, a green auxiliary layer 422, and a blue auxiliary layer 423. The red auxiliary layer 421 is located between the first electrode layer 31 and the second electrode layer 32, and the green auxiliary layer 422 and the blue auxiliary layer 423 are sequentially located above the second electrode layer 32, or the blue auxiliary layer 423 and the green auxiliary layer 422 are sequentially located above the second electrode layer 32. However, this is not a limitation; the stacking order of the auxiliary layers 42 of different colors can be interchanged. For example, as shown in FIG6, the green auxiliary layer 422 is located between the first electrode layer 31 and the second electrode layer 32, and the red auxiliary layer 421 and the blue auxiliary layer 423 are sequentially located above the second electrode layer 32, or the blue auxiliary layer 423 and the red auxiliary layer 421 are sequentially located above the second electrode layer 32. Of course, as shown in Figure 7, the blue auxiliary layer 423 can also be located between the first electrode layer 31 and the second electrode layer 32, and the green auxiliary layer 422 and the red auxiliary layer 421 can be located above the second electrode layer 32 in sequence, or the red auxiliary layer 421 and the green auxiliary layer 422 can be located above the second electrode layer 32 in sequence.

[0055] In one embodiment, the filter layer 40 may include only two auxiliary layers 42, with only one auxiliary layer located between the first electrode layer 31 and the second electrode layer 32, and the other auxiliary layer 42 located on the side of the second electrode layer 32 away from the substrate 10. The auxiliary layer 42 located on the side of the second electrode layer 32 away from the substrate 10 can protect the second electrode layer 32 and reduce the amount of incident ambient light reflected by the second electrode layer 32. Specifically, the two auxiliary layers 42 may be configured as follows: a red auxiliary layer located between the first electrode layer 31 and the second electrode layer 32, and a green or blue auxiliary layer located on the side of the second electrode layer 32 away from the substrate 10; a green auxiliary layer located between the first electrode layer 31 and the second electrode layer 32, and a red or blue auxiliary layer located on the side of the second electrode layer 32 away from the substrate 10; a blue auxiliary layer located between the first electrode layer 31 and the second electrode layer 32, and a green or red auxiliary layer located on the side of the second electrode layer 32 away from the substrate 10.

[0056] In some embodiments, as shown in FIG8, when the filter layer 40 includes only a red auxiliary layer 421 located between the first electrode layer 31 and the second electrode layer 32 and a blue auxiliary layer 423 located on the side of the second electrode layer 32 away from the substrate 10, the overlapping portion of the red auxiliary layer 421 and the blue auxiliary layer 423 has a better light filtering effect, and the red auxiliary layer 421 and the blue auxiliary layer 423 can serve as part of the light-shielding layer. Of course, in the embodiment shown in FIG8, the positions of the red auxiliary layer 421 and the blue auxiliary layer 423 can be interchanged.

[0057] In one embodiment, when all auxiliary layers 42 are located between the first electrode layer 31 and the second electrode layer 32, the display panel further includes a light-shielding layer 50 located on the side of the second electrode layer 32 away from the substrate 10. The light-shielding layer 50 can reduce the amount of incident ambient light reflected by the second electrode layer 32. In this embodiment, the via needs to pass through all the auxiliary layers 42 located between the first electrode layer 31 and the second electrode layer 32 so that the first connection portion can connect two adjacent first touch electrodes through the via.

[0058] In one embodiment, as shown in FIG9, the filter layer 40 is a gray filter layer 43, which is entirely located between the first electrode layer 31 and the second electrode layer 32. The gray filter layer 43 is configured to allow light emitted by all sub-pixels 21 to pass through. Due to the material properties of the gray filter layer 43, it has high transmittance for red, green, and yellow light. Therefore, the gray filter layer 43 can replace filters of different colors, thereby simplifying the fabrication process of the filter layer 40.

[0059] As shown in Figure 12, which is a schematic diagram of the spectrum of a gray filter layer provided in an embodiment of this application, the spectrum of the gray filter layer exhibits transmittance troughs in the wavelength range of 480nm to 530nm and in the wavelength range of 580nm to 630nm. This results in three transmittance peaks at wavelengths of 380nm to 480nm, 480nm to 580nm, and 6300nm to 780nm. These three peaks correspond precisely to blue, green, and red light, respectively, thus enabling the gray filter layer to transmit all three colors of light.

[0060] Furthermore, as shown in FIG9, the light-shielding layer 50 is located on the side of the second electrode layer 32 away from the substrate 10, and the orthogonal projections of the first electrode layer 31 and the second electrode layer 32 on the substrate 10 both fall within the orthogonal projection of the light-shielding layer 50 on the substrate 10.

[0061] Furthermore, as shown in Figure 9, the light-shielding layer 50 covers the second electrode layer 32.

[0062] In one embodiment, the display panel further includes a planarization layer 80 located on the side of the light filter layer 40, the light shielding layer 50, and the second electrode layer 32 away from the substrate 10. The planarization layer 80 can improve the flatness and stability of the display panel. The material of the planarization layer 80 may be, for example, a transparent organic resin.

[0063] This application embodiment also provides another display panel, as shown in FIG13, the display panel including a substrate 10, a light-emitting structure layer 20, a touch layer 30, a filter layer 40 and an insulating layer 90.

[0064] The light-emitting structure layer 20 is located on one side of the substrate 10 and includes a plurality of sub-pixels 21. The touch layer 30 is located on the side of the light-emitting structure layer 20 away from the substrate 10, and includes a first electrode layer 31 and a second electrode layer 32 located on the side of the first electrode layer 31 away from the substrate 10. The filter layer 40 is at least partially located on the side of the second electrode layer 32 away from the substrate 10, and includes at least three different colored filter portions 41. The orthographic projection of each sub-pixel 21 on the substrate 10 at least partially overlaps with the orthographic projection of one filter portion 41 on the substrate 10. The filter layer includes at least two auxiliary layers 42 located on the side of the second electrode layer 32 away from the substrate 10. Each auxiliary layer 42 includes multiple extensions, and each extension is integrally formed with one of the filter layers 41. The orthographic projections of at least two of the auxiliary layers 42 on the substrate 10 overlap, and the orthographic projections of both the first electrode layer 31 and the second electrode layer 32 on the substrate 10 fall within the orthographic projections of the auxiliary layers 42 on the substrate 10. An insulating layer is at least partially located between the first electrode layer 31 and the second electrode layer 32.

[0065] The structure of this display panel is basically similar to that of the aforementioned display panel. The differences are that an insulating layer is provided between the first electrode layer 31 and the second electrode layer 32, and the specific location of the filter layer 40 differs from that of the filter layer 40 in the aforementioned display panel. The structural features that are the same or similar to those of the aforementioned display panels will not be described further below.

[0066] In one embodiment, at least two auxiliary layers 42 are located above the insulating layer 90, and the auxiliary layers 42 are reused as a light-shielding layer 50. In the embodiment shown in FIG13, the auxiliary layers 42 include a red auxiliary layer 421, a green auxiliary layer 422, and a blue auxiliary layer 423. The orthographic projections of the first electrode layer 31 and the second electrode layer 32 on the substrate 10 both fall on the overlapping area of ​​the orthographic projections of the red auxiliary layer 421, the green auxiliary layer 422, and the blue auxiliary layer 423 on the substrate 10, and the red auxiliary layer 421, the green auxiliary layer 422, and the blue auxiliary layer 423 are collectively reused as a light-shielding layer 50.

[0067] This application also provides another display panel, as shown in FIG14. The display panel includes a substrate 10, a light-emitting structure layer 20, a touch layer 30, a light-filtering layer 40, a light-shielding layer 50, and an insulating layer 90. The light-filtering layer 40 includes at least three different colored filter portions 41, and the orthographic projection of each sub-pixel 21 on the substrate 10 at least partially overlaps with the orthographic projection of a filter portion 41 on the substrate 10. The light-filtering layer 40 also includes at least one auxiliary layer 42, each auxiliary layer 42 including multiple extensions, each extension and a filter portion 41 being integrally formed. The orthographic projections of the first electrode layer 31 and the second electrode layer 32 on the substrate 10 both fall within the orthographic projection of the auxiliary layer 42 on the substrate 10. This display panel is structurally similar to the aforementioned display panel, except that the insulating layer 90 is at least partially located between the first electrode layer 31 and the second electrode layer 32, and the orthographic projection of the insulating layer 90 on the substrate 10 falls within the orthographic projection of the auxiliary layer 42 on the substrate 10.

[0068] In one embodiment, as shown in FIG14, the first electrode layer 31 includes a plurality of first connection portions 311, the second electrode layer 32 includes a plurality of second connection portions 321, and the insulating layer 90 is a film layer including a plurality of block structures, each block structure of the insulating layer 90 being located between a first connection portion 311 and a second connection portion 321 disposed opposite to each other.

[0069] In one embodiment, as shown in FIG14, the filter layer 40 includes only one auxiliary layer 42, which is located between the first electrode layer 31 and the light-emitting structure layer 20. The auxiliary layer 42 includes a plurality of extensions 4211, the thickness of which is the same as the thickness of the filter portion 41 connected thereto. For example, the first electrode layer 31 is disposed on the side of the auxiliary layer away from the light-emitting structure layer.

[0070] In some embodiments, the extension 4211 located between the first electrode layer 31 and the light-emitting structure layer 20 can all be red, green, or blue. As shown in FIG14, the auxiliary layer 42 and the filter portion 411 are the same color and are both red, and the green filter portion 412 and the blue filter portion 413 are located within the pixel opening of the continuous film layer formed by the auxiliary layer 42 and the red filter portion 411; or, as shown in FIG15, the auxiliary layer 42 and the filter portion 412 are the same color and are both green, and the red filter portion 411 and the blue filter portion 413 are located within the pixel opening of the continuous film layer formed by the auxiliary layer 42 and the green filter portion 412; or, as shown in FIG16, the auxiliary layer 42 and the filter portion 413 are the same color and are both blue, and the red filter portion 411 and the green filter portion 412 are located within the pixel opening of the continuous film layer formed by the auxiliary layer 42 and the blue filter portion 413.

[0071] In one embodiment, as shown in FIG14, the filter layer 40 includes only one auxiliary layer 42, and the light-shielding layer 50 is located on the side of the second electrode layer 32 away from the substrate 10.

[0072] In one embodiment, as shown in FIG14, the light-shielding layer 50 covers the first electrode layer 31, the second electrode layer 32 and the insulating layer 90.

[0073] In one embodiment, as shown in FIG17, the filter layer 40 includes at least two auxiliary layers 42. At least one auxiliary layer 42 is disposed between the first electrode layer 31 and the light-emitting structure layer 20, and at least one auxiliary layer 42 is disposed on the side of the second electrode layer 32 away from the substrate 10. The orthographic projections of at least two of the auxiliary layers 42 on the substrate 10 overlap, and the orthographic projections of the first electrode layer 31 and the second electrode layer 32 on the substrate 10 fall within this overlapping area. The light-shielding layer 50 includes each of the auxiliary layers 42.

[0074] In one embodiment, as shown in FIG17, the filter layer 40 includes a red auxiliary layer 421, a green auxiliary layer 422, and a blue auxiliary layer 423. The red auxiliary layer 421 is located between the first electrode layer 31 and the encapsulation layer 60, and the green auxiliary layer 422 and the blue auxiliary layer 423 are sequentially located above the second electrode layer 32, or the blue auxiliary layer 423 and the green auxiliary layer 422 are sequentially located above the second electrode layer 32. However, this is not a limitation; the stacking order of the auxiliary layers 42 of different colors can be interchanged. For example, as shown in FIG18, the green auxiliary layer 422 is located between the first electrode layer 31 and the encapsulation layer 60, and the red auxiliary layer 421 and the blue auxiliary layer 423 are sequentially located above the second electrode layer 32, or the blue auxiliary layer 423 and the red auxiliary layer 421 are sequentially located above the second electrode layer 32. Of course, as shown in Figure 19, the blue auxiliary layer 423 can also be located between the first electrode layer 31 and the encapsulation layer 60, and the green auxiliary layer 422 and the red auxiliary layer 421 can be located above the second electrode layer 32 in sequence, or the red auxiliary layer 421 and the green auxiliary layer 422 can be located above the second electrode layer 32 in sequence.

[0075] In one embodiment, the filter layer 40 may include only two auxiliary layers 42, with only one auxiliary layer located between the first electrode layer 31 and the encapsulation layer 60, and the other auxiliary layer 42 located on the side of the second electrode layer 32 away from the substrate 10.

[0076] In one embodiment, as shown in FIG20, the filter layer 40 is a gray filter layer 43, which is entirely located between the first electrode layer 31 and the light-emitting structure layer 20, and is configured to allow light emitted by all sub-pixels 21 to pass through.

[0077] This application also provides a display device, which includes the display panel described above.

[0078] In one embodiment, the display device further includes a driver and a power supply circuit, wherein the driver is used to provide a driving signal for driving the sub-pixels to emit light, and the power supply circuit is used to supply power to the display panel.

[0079] In one embodiment, the display device further includes a housing, and the display panel is disposed within the housing.

[0080] This application does not impose specific limitations on the application of display devices, which can be any product or component with display function, such as televisions, laptops, tablets, wearable display devices, mobile phones, in-vehicle displays, navigation systems, e-books, digital photo frames, and advertising light boxes.

[0081] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A display panel, characterized in that, include: Substrate; A light-emitting structure layer, located on one side of the substrate, includes multiple sub-pixels; A touch layer is located on the side of the light-emitting structure layer away from the substrate; the touch layer includes a first electrode layer and a second electrode layer located on the side of the first electrode layer away from the substrate; A filter layer is at least partially located between the first electrode layer and the second electrode layer; A light-shielding layer is located on the side of the light-emitting structure layer away from the substrate. The light-shielding layer has multiple openings, and the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of one of the openings on the substrate.

2. The display panel of claim 1, wherein, The portion of the filter layer located between the first electrode layer and the second electrode layer is a continuous film.

3. The display panel of claim 1, wherein, The filter layer includes at least three different colored filter portions, and the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of a filter portion on the substrate; the filter layer also includes at least one auxiliary layer, each auxiliary layer including multiple extension portions, and each extension portion and a filter portion are integrally structured; the orthographic projections of the first electrode layer and the second electrode layer on the substrate both fall within the orthographic projection of the auxiliary layer on the substrate; at least one auxiliary layer is provided between the first electrode layer and the second electrode layer.

4. The display panel according to claim 3, characterized in that, An auxiliary layer is provided between the first electrode layer and the second electrode layer, and the thickness of the extension portion in the auxiliary layer is the same as the thickness of the filter portion connected thereto.

5. The display panel of claim 4, wherein, All the extensions in the auxiliary layer are the same color.

6. The display panel according to claim 3, characterized in that, The filter layer includes at least two auxiliary layers, and the extensions in the same auxiliary layer are of the same color; the orthographic projections of at least two auxiliary layers on the substrate have an overlapping area, and the orthographic projections of the first electrode layer and the second electrode layer on the substrate fall within the overlapping area; the light-shielding layer includes each of the auxiliary layers.

7. The display panel according to claim 6, characterized in that, An auxiliary layer is provided between the first electrode layer and the second electrode layer, and other auxiliary layers are located on the side of the second electrode layer away from the substrate.

8. The display panel according to claim 6, characterized in that, The number of auxiliary layers is the same as the number of colors of the filter section, and the orthographic projections of all the auxiliary layers on the substrate have overlapping areas, and the orthographic projections of the first electrode layer and the second electrode layer on the substrate fall within the overlapping area.

9. The display panel according to claim 4, characterized in that, The filter layer includes only one auxiliary layer, and the light-shielding layer is located on the side of the second electrode layer away from the substrate.

10. The display panel according to claim 1, characterized in that, The filter layer is a gray filter layer, and the entire gray filter layer is located between the first electrode layer and the second electrode layer; the gray filter layer is configured to allow light emitted by all sub-pixels to pass through.

11. A display panel, characterized in that, include: Substrate; A light-emitting structure layer, located on one side of the substrate, includes multiple sub-pixels; A touch layer is located on the side of the light-emitting structure layer away from the substrate; the touch layer includes a first electrode layer and a second electrode layer located on the side of the first electrode layer away from the substrate; A filter layer is at least partially located on the side of the second electrode layer away from the substrate; the filter layer includes at least three different colored filter portions, and the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of a filter portion on the substrate; the filter layer also includes at least two auxiliary layers, the at least two auxiliary layers being located on the side of the second electrode layer away from the substrate, each auxiliary layer including multiple extensions, each extension and a filter portion being an integral structure; the orthographic projections of at least two auxiliary layers on the substrate have an overlapping area, and the orthographic projections of the first electrode layer and the second electrode layer on the substrate both fall within the orthographic projection of the auxiliary layer on the substrate; An insulating layer is located at least partially between the first electrode layer and the second electrode layer.

12. A display panel, characterized in that, include: Substrate; A light-emitting structure layer, located on one side of the substrate, includes multiple sub-pixels; A touch layer is located on the side of the light-emitting structure layer away from the substrate; the touch layer includes a first electrode layer and a second electrode layer located on the side of the first electrode layer away from the substrate; A filter layer is at least partially located on the side of the second electrode layer away from the substrate; the filter layer includes at least three different colored filter portions, and the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of a filter portion on the substrate; the filter layer also includes at least one auxiliary layer, each auxiliary layer including multiple extensions, each extension and a filter portion being an integral structure; the orthographic projections of the first electrode layer and the second electrode layer on the substrate both fall within the orthographic projection of the auxiliary layer on the substrate; An insulating layer, at least partially located between the first electrode layer and the second electrode layer; the orthographic projection of the insulating layer on the substrate falls within the orthographic projection of the auxiliary layer on the substrate; A light-shielding layer is located on the side of the light-emitting structure layer away from the substrate. The light-shielding layer has multiple openings, and the orthographic projection of each sub-pixel on the substrate at least partially overlaps with the orthographic projection of one of the openings on the substrate.

13. The display panel according to claim 12, characterized in that, An auxiliary layer is provided between the first electrode layer and the light-emitting structure layer, and the thickness of the extension portion in the auxiliary layer is the same as the thickness of the filter portion connected thereto.

14. The display panel according to claim 13, characterized in that, The second electrode layer has at least one auxiliary layer on the side away from the substrate; the auxiliary layer located between the first electrode layer and the light-emitting structure layer and the auxiliary layer located on the side of the second electrode layer away from the substrate have an overlapping region on the substrate, and the orthogonal projections of the first electrode layer and the second electrode layer on the substrate fall within the overlapping region; the light-shielding layer includes each of the auxiliary layers.

15. A display device, characterized in that, The display device includes the display panel as described in any one of claims 1 to 14.

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