Display panel and display device

Abstract

This application discloses a display panel and display device, belonging to the field of display technology. The display panel includes: a driving backplane, a light-emitting device, a black matrix, and a color resist layer. The color resist layer has color resist blocks corresponding to the light-emitting device and an auxiliary color resist structure corresponding to the black matrix. Since the orthographic projection of the auxiliary color resist structure onto the driving backplane at least partially overlaps with the orthographic projection of the black matrix onto the driving backplane, when ambient light shines on the display panel, the ambient light must pass through the auxiliary color resist structure before reaching the black matrix, thus reducing the intensity of the ambient light hitting the black matrix. In this way, most of the ambient light hitting the black matrix within the display panel is absorbed by the auxiliary color resist structure during its passage, and only a small portion of the light is reflected off the display panel by the surface of the black matrix. This effectively reduces the reflectivity of the display panel, resulting in higher reliability.

Description

Technical Field

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

[0002] Organic light-emitting diodes (OLEDs), as a type of current-driven light-emitting device, are increasingly being used in high-performance display fields due to their characteristics such as low power consumption, self-emission, high color saturation, fast response, wide viewing angle, and flexibility.

[0003] Currently, to reduce the reflectivity of ambient light to the internal structure of OLED display panels, two methods are commonly used: First, a circular polarizer is attached to the light-emitting side of the OLED display panel. This polarizer reduces the amount of ambient light entering the OLED display panel that is reflected by its internal structure and emitted from the light-emitting surface. Second, a color filter (often called a color resist) is placed on the light-emitting side of the OLED display panel. Since this color filter filters light, it also reduces the amount of ambient light entering the OLED display panel that is reflected by its internal structure and emitted from the light-emitting surface. Furthermore, compared to circular polarizers, color filters have higher transmittance of light emitted by the OLED display panel, and OLED display panels integrating color filters are thinner. Therefore, more and more OLED display panels are integrating color filters.

[0004] However, in OLED display panels that integrate color filters, a black matrix is ​​typically placed between two adjacent color filters. This black matrix also has a certain reflectivity, resulting in a relatively high reflectivity of ambient light within the OLED's internal structure, thus leading to lower reliability of the OLED display panel. Summary of the Invention

[0005] This application provides a display panel and a display device. It can solve the problem of low reliability in existing display panels. The technical solution is as follows:

[0006] On the one hand, a display panel is provided, including:

[0007] Drive backplane;

[0008] Multiple light-emitting devices located on one side of the drive backplate;

[0009] A black matrix located on the side of the plurality of light-emitting devices facing away from the driving back plate, the black matrix having a plurality of first light-transmitting holes corresponding one-to-one with the plurality of light-emitting devices, the orthographic projection of the light-emitting device on the driving back plate being located within the orthographic projection of the corresponding first light-transmitting hole on the driving back plate;

[0010] And, a color resist layer located on the side of the black matrix away from the driving back plate, the color resist layer comprising: a plurality of color resist blocks corresponding one-to-one with the plurality of first light-transmitting holes, and an auxiliary color resist structure located between two adjacent color resist blocks;

[0011] Wherein, the orthographic projection of the first light-transmitting hole on the driving back plate is located within the orthographic projection of the corresponding color resist block on the driving back plate, and the orthographic projection of the auxiliary color resist structure on the driving back plate at least partially overlaps with the orthographic projection of the black matrix on the driving back plate.

[0012] Optionally, the auxiliary color resist structure has a plurality of opening areas corresponding one-to-one with the plurality of color resist blocks, and the boundary of the orthographic projection of the opening area on the drive back plate coincides with the boundary of the orthographic projection of the corresponding color resist block on the drive back plate.

[0013] Optionally, the orthographic projection of the black matrix on the drive backplane is located within the orthographic projection of the auxiliary color resist structure on the drive backplane.

[0014] Optionally, the plurality of color resist blocks include at least two types of color resist blocks with different colors, wherein the color of the auxiliary color resist structure is the same as the color of at least one type of color resist block.

[0015] Optionally, the plurality of color resist blocks include: a red color resist block, a green color resist block, and a blue color resist block;

[0016] All parts of the auxiliary color resist structure have the same color, and the color of the auxiliary color resist structure is any one of red, green and blue;

[0017] Alternatively, the auxiliary color resist structure may include at least two of a first part, a second part, and a third part, wherein the first part is the same color as the red color resist, the second part is the same color as the green color resist, and the third part is the same color as the blue color resist.

[0018] Optionally, when the auxiliary color resist structure includes a first part, the first part is distributed at least on one side of the red color resist block; when the auxiliary color resist structure includes a second part, the second part is distributed at least on one side of the green color resist block; when the auxiliary color resist structure includes a third part, the third part is distributed at least on one side of the blue color resist block.

[0019] Optionally, when the auxiliary color resist structure includes a first part, a second part, and a third part, the area of ​​the orthographic projection of the third part on the drive backplate is smaller than the area of ​​the orthographic projection of the first part on the drive backplate, and larger than the area of ​​the orthographic projection of the second part on the drive backplate.

[0020] Optionally, the display panel further includes a first cover layer located between the black matrix and the color resist layer, wherein the thickness of the first cover layer is greater than or equal to the thickness of the black matrix.

[0021] Optionally, the display panel further includes: a second cover layer located on the side of the color resist layer opposite to the driving back plate, and an inorganic cover layer located on the side of the second cover layer opposite to the driving back plate, wherein the refractive index of the inorganic cover layer is greater than the refractive index of the second cover layer.

[0022] Optionally, the thickness of the inorganic coating layer ranges from 500 angstroms to 1500 angstroms.

[0023] Optionally, the display panel further includes: multiple photosensitive devices located on one side of the driving back panel; the black matrix also has multiple second light-transmitting holes corresponding to the multiple photosensitive devices; and the auxiliary color resist structure has multiple third light-transmitting holes corresponding to the multiple photosensitive devices.

[0024] The orthographic projection of the photosensitive device on the driving back plate at least partially overlaps with the orthographic projection of the corresponding second light-transmitting hole on the driving back plate, and at least partially overlaps with the orthographic projection of the corresponding third light-transmitting hole on the driving back plate.

[0025] Optionally, the boundary of the orthographic projection of the photosensitive device on the driving back plate coincides with the boundary of the orthographic projection of the corresponding second light-transmitting hole on the driving back plate, and also coincides with the boundary of the orthographic projection of the corresponding third light-transmitting hole on the driving back plate.

[0026] Optionally, the display panel further includes: an encapsulation layer located on the side of the plurality of light-emitting devices facing away from the driving backplate, and a touch layer located on the side of the encapsulation layer facing away from the driving backplate;

[0027] The touch layer is located between the encapsulation layer and the black matrix, and the touch layer has touch signal lines. The orthographic projection of the touch signal lines on the driving backplane does not coincide with the orthographic projection of the plurality of photosensitive devices on the driving backplane.

[0028] Optionally, the display panel is a foldable display panel, and the display panel further includes an ultra-thin glass UTG cover plate located on the side of the color resist layer opposite to the driving back plate.

[0029] On the other hand, a display device is provided, comprising: a power supply component and a display panel, wherein the display panel is any of the display panels described above, and the power supply component is used to supply power to the display panel.

[0030] The beneficial effects of the technical solutions provided in this application are:

[0031] A display panel includes a driving backplane, light-emitting devices, a black matrix, and a color resist layer. The color resist layer has color resist blocks corresponding to the light-emitting devices and auxiliary color resist structures corresponding to the black matrix. Since the orthographic projection of the auxiliary color resist structure onto the driving backplane at least partially overlaps with the orthographic projection of the black matrix onto the driving backplane, when ambient light shines on the display panel, the ambient light must pass through the auxiliary color resist structure before reaching the black matrix, thus reducing the intensity of the ambient light hitting the black matrix. In this way, most of the ambient light hitting the black matrix within the display panel is absorbed by the auxiliary color resist structure during its passage, and only a small portion of the light is reflected off the surface of the black matrix and out of the display panel. This effectively reduces the reflectivity of the display panel, ensuring that the intensity of the reflected ambient light does not significantly interfere with the light emitted by the light-emitting devices within the display panel, thereby increasing the reliability of the display panel. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a display panel provided by related technologies;

[0034] Figure 2 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0035] Figure 3 This is a partial top view of a color resist block and a black matrix provided in an embodiment of this application;

[0036] Figure 4 This is a partial top view of an auxiliary color resist structure and color resist block provided in an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0038] Figure 6 This is a partial top view of a color resist layer provided in an embodiment of this application;

[0039] Figure 7 It is a setting Figure 6 A comparison chart showing the reflectivity of a display panel with a color resist layer and a display panel without an auxiliary color resist structure is provided.

[0040] Figure 8 This is a partial top view of another color resist layer provided in the embodiments of this application;

[0041] Figure 9 It is a setting Figure 8 A comparison chart showing the reflectivity of a display panel with a color resist layer and a display panel without an auxiliary color resist structure is provided.

[0042] Figure 10 This is a partial top view of another color resist layer provided in the embodiments of this application;

[0043] Figure 11 It is a setting Figure 10 A comparison chart showing the reflectivity of a display panel with a color resist layer and a display panel without an auxiliary color resist structure is provided.

[0044] Figure 12 This is a partial top view of a color resist layer provided in another embodiment of this application;

[0045] Figure 13 This is a partial top view of another color resist layer provided in another embodiment of this application;

[0046] Figure 14 This is a partial top view of another color resist layer provided in another embodiment of this application;

[0047] Figure 15 It is a setting Figure 14 A comparison diagram showing the reflectivity of a display panel with a color resist layer and a display panel without an auxiliary color resist structure is provided.

[0048] Figure 16 This is a partial top view of an auxiliary color resist structure provided in this application embodiment, which includes a color resist layer with two parts;

[0049] Figure 17 This is a partial top view of another auxiliary color resist structure provided in this application embodiment, which includes two parts of the color resist layer;

[0050] Figure 18 This is a schematic diagram of the structure of another display panel provided in the embodiments of this application;

[0051] Figure 19 This is a comparison diagram of the reflectivity of a display panel with an inorganic cover layer disposed within the display panel and the reflectivity of a display panel without an inorganic cover layer, provided in an embodiment of this application.

[0052] Figure 20 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0053] Figure 21 This is a schematic diagram of the film layer of a display panel provided in an embodiment of this application;

[0054] Figure 22 This is a schematic diagram of the film layer of another display panel provided in an embodiment of this application;

[0055] Figure 23 This is a schematic diagram of the film layer of another display panel provided in the embodiments of this application;

[0056] Figure 24 This is a schematic diagram of the film layer of another display panel provided in the embodiments of this application. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0058] Please refer to the relevant technologies. Figure 1 , Figure 1 This is a schematic diagram of the structure of a display panel provided by related technologies. The display panel 00 may include: a driving backplate 01, a light-emitting device 02, and a color filter substrate 03.

[0059] Multiple light-emitting devices 02 are located on one side of the driving backplate 01, and are electrically connected to the driving backplate 01. In this way, the display panel can control the light-emitting devices 02 to emit light through the driving backplate 01.

[0060] The color filter substrate 03 has color resist blocks 032 and a black matrix 031 located between any two adjacent color resist blocks 032. Each color resist block 032 corresponds one-to-one with a plurality of light-emitting devices 02. Thus, light emitted by the light-emitting devices 02 can pass through the color resist blocks 032 of different colors and be emitted, causing the display panel 00 to display a color image.

[0061] However, since the black matrix 031 also has a certain reflectivity, and the area of ​​its orthographic projection on the driving backplate 01 is usually large, when ambient light shines on the display panel 00, the black matrix 031 can reflect a significant amount of ambient light out of the display panel 00, resulting in a high reflectivity for the display panel 00. For example, the reflectivity of the display panel 00 may be greater than 6%. Because the intensity of the light reflected by the display panel 00 after ambient light shines on it may overwhelm the intensity of the light emitted by the light-emitting devices 02 in the display panel 00, a high reflectivity of the display panel 00 leads to a poor display effect, and consequently, lower reliability.

[0062] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application. The display panel 000 may include: a driving back plate 100, a plurality of light-emitting devices 200 located on one side of the driving back plate 100, a black matrix 300 located on the side of the plurality of light-emitting devices 200 away from the driving back plate 100, and a color resist layer 400 located on the side of the black matrix 300 away from the driving back plate 100.

[0063] The black matrix 300 has multiple first light-transmitting holes V1 corresponding one-to-one with multiple light-emitting devices 200. The orthographic projection of the light-emitting device 200 on the driving backplate 100 lies within the orthographic projection of the corresponding first light-transmitting hole V1 on the driving backplate 100. Here, the driving backplate 100 and the light-emitting device 200 are electrically connected, and the driving backplate 100 controls the light emitted by the light-emitting device 200. In this way, the light emitted by the light-emitting device 200 can exit from the corresponding first light-transmitting hole V1.

[0064] The color resist layer 400 may include a plurality of color resist blocks 401 corresponding one-to-one with a plurality of first light-transmitting holes V1, and an auxiliary color resist structure 402 located between two adjacent color resist blocks 401. Here, the color resist blocks 401 may be composed of color resist blocks 401 of multiple colors.

[0065] In this configuration, the orthographic projection of the first light-passing hole V1 on the driving back plate 100 lies within the orthographic projection of the corresponding color resist block 401 on the driving back plate 100, and the orthographic projection of the auxiliary color resist structure 402 on the driving back plate 100 at least partially overlaps with the orthographic projection of the black matrix 300 on the driving back plate 100. Thus, the light emitted by the light-emitting device 200 can exit from the corresponding color resist block 401, enabling the display panel 000 to display a color image.

[0066] In this application, the orthographic projection of the auxiliary color resist structure 402 on the driving backplate 100 at least partially overlaps with the orthographic projection of the black matrix 300 on the driving backplate 100. Therefore, when ambient light shines on the display panel 000, the ambient light needs to pass through the auxiliary color resist structure 402 before shining on the black matrix 300, thus reducing the intensity of the ambient light shining on the black matrix 300. In this way, most of the ambient light shining on the black matrix 300 within the display panel 000 is absorbed by the auxiliary color resist structure 402 during its passage, and only a small portion of the light is reflected off the surface of the black matrix 300 and out of the display panel 000. This effectively reduces the reflectivity of the display panel 000, ensuring that the intensity of the ambient light reflected by the display panel 000 does not significantly interfere with the light emitted by the light-emitting device 200 in the display panel 000, thereby increasing the reliability of the display panel 000.

[0067] In summary, the display panel provided in this application includes: a driving backplane, light-emitting devices, a black matrix, and a color resist layer. The color resist layer has color resist blocks corresponding to the light-emitting devices and an auxiliary color resist structure corresponding to the black matrix. Since the orthographic projection of the auxiliary color resist structure onto the driving backplane at least partially overlaps with the orthographic projection of the black matrix onto the driving backplane, when ambient light shines on the display panel, the ambient light must pass through the auxiliary color resist structure before reaching the black matrix, thus reducing the intensity of the ambient light hitting the black matrix. In this way, most of the ambient light hitting the black matrix within the display panel is absorbed by the auxiliary color resist structure during its passage, and only a small portion of the light is reflected off the surface of the black matrix and out of the display panel. This effectively reduces the reflectivity of the display panel, ensuring that the intensity of the ambient light reflected by the display panel does not significantly interfere with the light emitted by the light-emitting devices in the display panel, thereby increasing the reliability of the display panel.

[0068] In the embodiments of this application, please refer to Figure 3 and Figure 4 , Figure 3 This is a partial top view of a color resist block and a black matrix provided in an embodiment of this application. Figure 4 This is a partial top view of an auxiliary color resist structure and color resist blocks provided in an embodiment of this application. The auxiliary color resist structure 402 in the color resist layer 400 has multiple opening areas K corresponding one-to-one with multiple color resist blocks 401. The boundary of the orthographic projection of the opening area K onto the driving back plate 100 coincides with the boundary of the orthographic projection of the corresponding color resist block 401 onto the driving back plate 100. In this way, the sidewall of the color resist block 401 is in contact with the sidewall of the auxiliary color resist structure 402, ensuring that the area between any two adjacent color resist blocks 401 can be filled by the auxiliary color resist structure 402. Thus, in ambient light incident on the black matrix 300 within the display panel 000, this light will either pass through the color resist blocks 401 or the auxiliary color resist structure 402 before reaching the black matrix 300, thereby further reducing the reflectivity of the display panel 000.

[0069] In this application, the orthographic projection of the black matrix 300 on the driving backplate 100 lies within the orthographic projection of the auxiliary color resist structure 402 on the driving backplate 100. Thus, the auxiliary color resist structure 402 can cover the entire black matrix 300 in the display panel 000. In this case, the orthographic projection of the color resist block 401 on the driving backplate 100 can coincide with the orthographic projection of the corresponding first light-transmitting hole V1 in the black matrix 300 on the driving backplate 100.

[0070] Optionally, the plurality of color resist blocks 401 in the color resist layer 400 may include at least two types of color resist blocks 401 with different colors, and the color of the auxiliary color resist structure 402 in the color resist layer 400 is the same as the color of at least one type of color resist block 401.

[0071] For example, such as Figures 3 to 5 As shown, Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of this application. The plurality of color resist blocks 401 in the color resist layer 400 may include: a red color resist block 401R, a green color resist block 401G, and a blue color resist block 401B. The auxiliary color resist structure 402 in the color resist layer 400 may have the same color as at least one of the red color resist block 401R, the green color resist block 401G, and the blue color resist block 401B.

[0072] In this application, the display panel 000 arranges color resist blocks 401 of different colors in a certain pattern, allowing the light emitted by each light-emitting device 200 to pass through the corresponding color resist block 401, thus enabling the display panel 000 to display different color images. Here, the light-emitting device 200 may also include: a red light-emitting device 200R, a green light-emitting device 200G, and a blue light-emitting device 200B. The red light-emitting device 200R can correspond to the red color resist block 401R, the green light-emitting device 200G can correspond to the green color resist block 401G, and the blue light-emitting device 200B can correspond to the blue color resist block 401B. That is, the orthographic projection of the red color resist 401R on the driving backplate 100 is located within the orthographic projection of the red light-emitting device 200R on the driving backplate 100; the orthographic projection of the green color resist 401G on the driving backplate 100 is located within the orthographic projection of the green light-emitting device 200G on the driving backplate 100; and the orthographic projection of the blue color resist 401B on the driving backplate 100 is located within the orthographic projection of the blue light-emitting device 200B on the driving backplate 100.

[0073] In this embodiment, the color of the auxiliary color resist structure 402 and the color of the color resist block 401 can be implemented in several ways. This embodiment only illustrates the following two optional implementation methods as examples:

[0074] In the first optional implementation, all parts of the auxiliary color resist structure 402 have the same color, and the color of the auxiliary color resist structure 402 is any one of red, green, and blue. In this case, there are three possible structures for the auxiliary color resist structure 402 and the color resist block 401.

[0075] For the first scenario, please refer to... Figure 6 , Figure 6 This is a partial top view of a color resist layer provided in an embodiment of this application. The auxiliary color resist structure 402 in the color resist layer 400 is red. That is, the color of the auxiliary color resist structure 402 in the color resist layer 400 is the same as the color of the red color resist block 401R.

[0076] In this application, to more clearly see the reflectivity of the display panel 000 after setting the auxiliary color resist structure 402 to red, compared to the reflectivity of the display panel 000 without the auxiliary color resist structure 402, please refer to... Figure 7 , Figure 7 It is a setting Figure 6 The diagram shows a comparison of the reflectance of a display panel with a color resist layer and a display panel without an auxiliary color resist structure. Here, the reflectance curve of the display panel without an auxiliary color resist structure is labeled Q1. Figure 6 The reflectance curve of the display panel with the color resist layer shown is labeled Q2. As can be seen from the figure, after setting the auxiliary color resist structure 402 to red, the reflectance of the display panel 000 is significantly reduced across the visible light wavelength range compared to the display panel without the auxiliary color resist structure. For example, for light with a wavelength of 550 nm, the reflectance of the display panel without the auxiliary color resist structure is 7.9%, while the reflectance of the display panel 000 with the auxiliary color resist structure 402 set to red is only 5.9%. Thus, by setting all of the auxiliary color resist structures 402 in the display panel 000 to red, the reflectance of the display panel 000 can be reduced by 12%. Therefore, by setting all of the auxiliary color resist structures 402 to red, the reflectance of the display panel 000 can be effectively reduced.

[0077] For the second scenario, please refer to [the relevant documentation / reference]. Figure 8 , Figure 8 This is a partial top view of another color resist layer provided in this application embodiment. The auxiliary color resist structure 402 in the color resist layer 400 is blue. That is, the color of the auxiliary color resist structure 402 in the color resist layer 400 is the same as the color of the blue color resist block 401B.

[0078] In this application, to more clearly see the reflectivity of the display panel 000 after setting the auxiliary color resist structure 402 to blue, compared to the reflectivity of the display panel 000 without the auxiliary color resist structure 402, please refer to... Figure 9 , Figure 9 It is a setting Figure 8 This is a comparison chart showing the reflectance of a display panel with a color resist layer and a display panel without an auxiliary color resist structure. Here, the reflectance curve of the display panel 000 without the auxiliary color resist structure 402 is labeled Q1. Figure 8The reflectance curve of the display panel with the color resist layer shown is labeled Q3. As can be seen from the figure, after setting the auxiliary color resist structure 402 to blue, the reflectance of the display panel 000 is significantly reduced across the visible light wavelength range compared to the display panel without the auxiliary color resist structure. For example, for light with a wavelength of 550 nm, the reflectance of the display panel 000 without the auxiliary color resist structure 402 is 7.9%, while the reflectance of the display panel 000 with the auxiliary color resist structure 402 set to red is only 6.0%. Thus, by setting all of the auxiliary color resist structures 402 in the display panel 000 to blue, the reflectance of the display panel 000 can be reduced by 14%. Therefore, by setting all of the auxiliary color resist structures 402 to blue, the reflectance of the display panel 000 can be effectively reduced.

[0079] For the third scenario, please refer to [the relevant documentation / reference]. Figure 10 , Figure 10 This is a partial top view of another color resist layer provided in this application embodiment. The auxiliary color resist structure 402 in the color resist layer 400 is green. That is, the color of the auxiliary color resist structure 402 in the color resist layer 400 is the same as the color of the green color resist block 401G.

[0080] In this application, to more clearly see the reflectivity of the display panel 000 after setting the auxiliary color resist structure 402 to green, compared to the reflectivity of the display panel 000 without the auxiliary color resist structure 402, please refer to... Figure 11 , Figure 11 It is a setting Figure 10 This is a comparison chart showing the reflectance of a display panel with a color resist layer and a display panel without an auxiliary color resist structure. Here, the reflectance curve of the display panel 000 without the auxiliary color resist structure 402 is labeled Q1. Figure 10 The reflectance curve of the display panel with the shown color resist layer is labeled Q4. As can be seen from the figure, after setting the auxiliary color resist structure 402 to green, the reflectance of the display panel 000 is significantly reduced across the visible light wavelength range compared to the display panel without the auxiliary color resist structure. For example, for light with a wavelength of 550 nm, the reflectance of the display panel 000 without the auxiliary color resist structure 402 is 7.9%, while the reflectance of the display panel 000 with the auxiliary color resist structure 402 set to red is only 5.96%. Thus, by setting all of the auxiliary color resist structures 402 in the display panel 000 to green, the reflectance of the display panel 000 can be reduced by 9%. Therefore, by setting all of the auxiliary color resist structures 402 to green, the reflectance of the display panel 000 can be effectively reduced.

[0081] For the second optional implementation method, please refer to... Figure 12 , Figure 12This is a partial top view of a color resist layer according to another embodiment of this application. The auxiliary color resist structure 402 in the color resist layer 400 may include at least two of a first portion 4021, a second portion 4022, and a third portion 4023. Specifically, the first portion 4021 is the same color as the red color resist block 401R, the second portion 4022 is the same color as the green color resist block 401G, and the third portion 4023 is the same color as the blue color resist block 401B. In this case, the auxiliary color resist structure 402 is composed of color resist blocks of at least two colors.

[0082] When the auxiliary color resist structure 402 includes a first portion 4021, the first portion 4021 is at least distributed on one side of the red color resist block 401R. Here, the first portion 4021 can be located on one side of the red color resist block 401R, or it can be located around the red color resist block 401R; this embodiment of the application does not limit this. For example, Figure 12 The following explanation uses the case where the first part 4021 is located around the red color resist block 401R as an example. In this case, since the red first part 4021 is distributed at least on one side of the red color resist block 401R, the area of ​​the red region in the color resist layer 400 is increased. Thus, during the fabrication of the patterned red color resist structure (which may include the red color resist block 401R and the first part 4021) using a mask, the area of ​​the opening corresponding to the patterned red color resist structure in the mask is larger, meaning the mask's precision is lower. This effectively reduces the process difficulty of fabricating the patterned red color resist structure, thereby effectively improving the manufacturing efficiency of the display panel 000.

[0083] When the auxiliary color resist structure 402 includes a second portion 4022, the second portion 4022 is at least distributed on one side of the green color resist block 401G. Here, the second portion 4022 may also be located on one side of the green color resist block 401G, or it may be located around the green color resist block 401G; this embodiment of the application does not limit this. For example, Figure 12 The following explanation uses the case where the second part 4022 is located on one side of the green color resist block 401G as an example. In this case, since the green second part 4022 is distributed at least on one side of the green color resist block 401G, the area of ​​the green region in the color resist layer 400 is increased. Thus, during the fabrication of the patterned green color resist structure (which may include the green color resist block 401G and the second part 4022) using a mask, the area of ​​the opening corresponding to the patterned green color resist structure in the mask is larger, meaning the mask's precision is lower. This effectively reduces the process difficulty of fabricating the patterned green color resist structure, thereby effectively improving the manufacturing efficiency of the display panel 000.

[0084] When the auxiliary color resist structure 402 includes a third portion 4023, the third portion 4023 is at least distributed on one side of the blue color resist block 401B. Here, the third portion 4023 may also be located on one side of the blue color resist block 401B, or it may be located around the blue color resist block 401B; this embodiment of the application does not limit this. For example, Figure 12 The following explanation uses the case where the third part 4023 is located on multiple sequentially connected sides of the blue color resist block 401B as an example. In this case, since the blue third part 4023 is distributed on at least one side of the blue color resist block 401B, the area of ​​the blue region in the color resist layer 400 is increased. Thus, during the fabrication of the patterned blue color resist structure (which may include the blue color resist block 401B and the third part 4023) using a mask, the area of ​​the opening corresponding to the patterned blue color resist structure in the mask is larger, meaning the mask's precision is lower. This effectively reduces the process difficulty of fabricating the patterned blue color resist structure, thereby effectively improving the manufacturing efficiency of the display panel 000.

[0085] In this embodiment, when the auxiliary color resist structure 402 simultaneously includes a first portion 4021, a second portion 4022, and a third portion 4023, the area S of the orthographic projection of the third portion 4023 onto the drive backplate 100 is... B The area S is smaller than the orthographic projection of the first part 4021 onto the drive backplate 100. R And larger than the area S of the orthographic projection of the second part 4022 onto the drive backplate 100. G Here, according to the content disclosed in the first optional implementation method above, the reflectivity of the display panel 000 when all the auxiliary color resist structures 402 in the display panel 000 are set to red is almost the same as the reflectivity of the display panel when all the auxiliary color resist structures 402 in the display panel 000 are set to blue. Furthermore, since the display panel 000 reflects a lot of blue light, which can have an adverse effect on the user's eyes, the area S of the orthographic projection of the third part 4023 of the auxiliary color resist structure 402 onto the driving backplate 100 can be... B The area S smaller than the orthographic projection of the first part 4021 onto the drive backplate 100 R Meanwhile, since the auxiliary color resist structure 402 in the display panel 000 is entirely green, the reflectivity of the display panel 000 is relatively high, and the human eye is more sensitive to green light. Therefore, the area S of the orthographic projection of the second part 4023 of the auxiliary color resist structure 402 onto the driving backplate 100 can be increased. G The area S of the orthographic projection of part 4023 onto the drive backplate 100 is smaller than that of part 4023. BIn this way, while ensuring that the reflectivity of the display panel 000 is low, the viewing effect of the image displayed on the display panel 000 can be improved as much as possible.

[0086] In this application, because the arrangement of the light-emitting devices 200 in the display panel 000 is different, the arrangement of the color resist blocks 401 and the auxiliary color resist structures 402 in the color resist layer 400 is also different. The embodiments of this application only illustrate the following three arrangement methods as examples:

[0087] The first arrangement method, when the color resist block 401 is arranged as follows: Figure 12 As shown, in the vertical arrangement direction, the four color resist structures 401 (401G, 401G, 401R, and 401B) in the first column can constitute a pixel in the display panel 000, and the four color resist structures 401 (401B, 401G, 401G, and 401R) in the second column can also constitute a pixel in the display panel 000; in the horizontal arrangement direction, the four color resist structures 401 in the first row can constitute a pixel in the display panel 000, and the four color resist structures 401 in the second row can also constitute a pixel in the display panel 000. Here, these four pixels share a common color resist block 401, and these four pixels can form a square.

[0088] In this case, to facilitate the calculation of the area of ​​all auxiliary color resist structures 402 in the display panel 000, the side length of the square formed by these four pixels is denoted as 2P. P is the distance between two adjacent pixels, which can be obtained from the pixel density (Pixels Per Inch; abbreviated as PPI) in the display panel 000. Thus, the area S of the orthographic projection of the first part 4021 of the auxiliary color resist structure 402 onto the driving backplate 100 is... R The following relationship must be satisfied:

[0089] 2*P^2<S R ≤4*P^2.

[0090] The area S of the orthographic projection of the second part 4022 in the auxiliary color resist structure 402 onto the drive backplate 100 G The following relationship must be satisfied:

[0091] 0 < S G ≤0.4*P^2.

[0092] The area S of the orthographic projection of the third part 4023 in the auxiliary color resist structure 402 onto the drive backplate 100 B The following relationship must be satisfied:

[0093] 0.4 * P^2 < S B ≤2*P^2.

[0094] For the second arrangement method, please refer to 13. Figure 13 This is a partial top view of another color resist layer provided in another embodiment of this application. When the color resist blocks 401 are arranged as follows... Figure 13 As shown, in the vertical arrangement direction, the four color resist structures 401 (401B, 401G, 401R, and 401G) in the first column can constitute a pixel in the display panel 000, and the four color resist structures 401 (401R, 401G, 401B, and 401G) in the second column can also constitute a pixel in the display panel 000; in the horizontal arrangement direction, the four color resist structures 401 in the first row can constitute a pixel in the display panel 000, and the four color resist structures 401 in the second row can also constitute a pixel in the display panel 000. Here, these four pixels share a common color resist block 401, and these four pixels can form a square.

[0095] In this case, to facilitate the calculation of the area of ​​all auxiliary color resist structures 402 in the display panel 000, the side length of the square formed by these four pixels is denoted as 2P. P is the distance between two adjacent pixels, which can be obtained from the pixel density (Pixels Per Inch; abbreviated as PPI) in the display panel 000. Thus, the area S of the orthographic projection of the first part 4021 of the auxiliary color resist structure 402 onto the driving backplate 100 is... R The following relationship must be satisfied:

[0096] 2*P^2<S R ≤4*P^2.

[0097] The area S of the orthographic projection of the second part 4022 in the auxiliary color resist structure 402 onto the drive backplate 100 G The following relationship must be satisfied:

[0098] 0 < S G ≤0.4*P^2.

[0099] The area S of the orthographic projection of the third part 4023 in the auxiliary color resist structure 402 onto the drive backplate 100 B The following relationship must be satisfied:

[0100] 0.4 * P^2 < S B ≤2*P^2.

[0101] For the third arrangement, please refer to 14. Figure 14 This is a partial top view of another color resist layer provided in another embodiment of this application. When the color resist blocks 401 are arranged as follows... Figure 14As shown, in the horizontal arrangement direction, the six color resist structures 401 in the first row can form two pixels in the display panel 000, and the six color resist structures 401 in the second row can also form two pixels in the display panel 000; in the vertical arrangement direction, the six color resist structures 401 in the first column can form two pixels in the display panel 000, and the six color resist structures 401 in the second column can also form two pixels in the display panel 000. Here, there are no shared color resist blocks 401 among these four pixels, and these four pixels can form a square.

[0102] In this case, to facilitate the calculation of the area of ​​all auxiliary color resist structures 402 in the display panel 000, the side length of the square formed by these four pixels is denoted as 2P. P is the distance between two adjacent pixels, which can be obtained from the pixel density (Pixels Per Inch; abbreviated as PPI) in the display panel 000. Thus, the area S of the orthographic projection of the first part 4021 of the auxiliary color resist structure 402 onto the driving backplate 100 is... R The following relationship must be satisfied:

[0103] 2*P^2<S R ≤4*P^2.

[0104] The area S of the orthographic projection of the second part 4022 in the auxiliary color resist structure 402 onto the drive backplate 100 G The following relationship must be satisfied:

[0105] 0 < S G ≤0.4*P^2.

[0106] The area S of the orthographic projection of the third part 4023 in the auxiliary color resist structure 402 onto the drive backplate 100 B The following relationship must be satisfied:

[0107] 0.4 * P^2 < S B ≤2*P^2.

[0108] It should be noted that, in the above arrangement methods, the distance P between two adjacent pixels ranges from 1 to 100 micrometers.

[0109] In this application, to more clearly see the reflectivity of the display panel 000 after the auxiliary color resist structure 402 is set into three parts, compared with the reflectivity of the display panel without the auxiliary color resist structure, please refer to... Figure 15 , Figure 15 It is a setting Figure 14 The diagram shows a comparison of the reflectance of a display panel with a color resist layer and a display panel without an auxiliary color resist structure. Here, the reflectance curve of the display panel 000 without the auxiliary color resist structure 402 is labeled Q1. Figure 14 The reflectance curve of the display panel with the color resist layer shown is labeled Q5. As can be seen from the figure, the reflectance of the display panel with the auxiliary color resist structure divided into three parts is significantly lower than that of the display panel without the auxiliary color resist structure, across the visible light wavelength range. For example, for light with a wavelength of 550 nm, the reflectance of the display panel 000 without the auxiliary color resist structure 402 is 7.9%, while the reflectance of the display panel with the auxiliary color resist structure divided into three parts is only 4.49%. Thus, by dividing the auxiliary color resist structure into three parts, the reflectance of the display panel 000 can be reduced by 21%. Therefore, by dividing the auxiliary color resist structure 402 into three parts, the reflectance of the display panel 000 can be effectively reduced.

[0110] It should be noted that the above embodiments are illustrative examples of the auxiliary color resist structure 402 comprising a first part 4021, a second part 4022, and a third part 4023. In other possible implementations, the auxiliary color resist structure 402 may also include only two of the first part 4021, the second part 4022, and the third part 4023.

[0111] For an example, please refer to 16. Figure 16 This is a partial top view of a color resist layer when the auxiliary color resist structure provided in this application includes two parts. When the auxiliary color resist structure 402 includes two of the first part 4021, the second part 4022, and the third part 4023, the area of ​​the orthographic projection of these two parts of the auxiliary color resist structure 402 onto the drive backplate 100 can also be referred to the first part 4021S in the above embodiment. R Part Two 4022S G And the area S of the third part 4023 B The relationship between them will not be elaborated further in the embodiments of this application. It should be noted that when the auxiliary color resist structure 402 includes two of the first part 4021, the second part 4022, and the third part 4023, the arrangement of the color resist block 401 and the auxiliary color resist structure 402 in the color resist layer 400 is also different. In one case, such as... Figure 16 As shown, when the color resist blocks 401 are arranged as follows Figure 16 As shown, the auxiliary color resist structure 402 includes both a first portion 4021 and a third portion 4023. The third portion 4023 is located around the blue color resist block 401B. Figure 16 The color resist blocks 401 shown are arranged in a diamond pattern. For another example, please refer to 17. Figure 17This is a partial top view of another auxiliary color resist structure provided in this application embodiment, where the color resist layer includes two parts. The auxiliary color resist structure 402 also includes a first part 4021 and a third part 4023. The difference is that... Figure 17 The color resist blocks 401 shown are arranged in a tripod shape.

[0112] It should be noted that in both of the above cases, the area S of the orthographic projection of the first part 4021 onto the drive backplane 100 is... R The relationship described in the above embodiments can be satisfied; the area S of the orthographic projection of the third part 4023 onto the drive backplate 100 is... B The relationships described in the above embodiments can also be satisfied, and the embodiments of this application will not be elaborated on in detail.

[0113] It should also be noted that, in the two optional implementations described above, the auxiliary color resist structure 402 can be made of the same material as the color resist block 401. In other possible implementations, the auxiliary color resist structure 402 can also be made of other materials that can reduce reflectivity. This application embodiment does not limit this.

[0114] In related technologies, such as Figure 1 In the display panel 00 shown, during the fabrication of the color filter substrate 03, a patterned black matrix 031 is first generated, and the black matrix 031 has a certain thickness. Therefore, when the color resist block 031 is subsequently generated on the black matrix 031, a portion of the color resist block 031 is located within the recessed structure formed by the black matrix 031. This causes a partial recess to also form on the side of the color resist block 031 facing away from the driving backplate 01. Consequently, when ambient light shines on the display panel 00 in a black screen state, the ambient light reflected from the internal structure of the display panel 00 is highly prone to exhibiting color distortion (i.e., color separation). For example, the color separation value of the display panel is 23. Thus, the color separation of the display panel 00 is relatively large, resulting in a poor display effect.

[0115] In the embodiments of this application, please refer to Figure 18 , Figure 18This is a schematic diagram of another display panel structure provided in this application embodiment. The display panel 000 may further include a first cover layer 500 located between the black matrix 300 and the color resist layer 400, the thickness of the first cover layer 500 being greater than or equal to the thickness of the black matrix 300. Here, at least a portion of the first cover layer 500 is located within the first light-transmitting hole V1 of the black matrix 300. Thus, during the formation of the display panel 000, based on the black matrix 300 having multiple first light-transmitting holes V1, the first cover layer 500 is prepared on the black matrix 300, so that the first cover layer 500 can planarize the first light-transmitting hole V1 within the black matrix 300, making the side of the color resist block 401 in the color resist layer 400 subsequently prepared on the first cover layer 500 that faces away from the driving back plate 100 relatively flat. In this way, when ambient light shines on the display panel in a black screen state, the ambient light reflected from the internal structure of the display panel is less likely to exhibit color phenomena; for example, the color separation value of the display panel 000 is 11. This effectively reduces color separation in display panel 000, resulting in better display performance.

[0116] It should be noted that the thickness of the first capping layer 500 is greater than or equal to the thickness of the black matrix 300, so that the first capping layer 500 can better planarize the first light-transmitting holes V1 within the black matrix 300. For example, when the thickness of the black matrix 300 is 1.5 micrometers, the thickness range of the first capping layer 500 is 1.5 micrometers to 2 micrometers. It should also be noted that, in this application, the planarization of the black matrix 300 with multiple first light-transmitting holes V1 by the first capping layer 500 can be achieved using a chemical vapor deposition method or an organic material planarization method; this application does not limit the specific method used.

[0117] In the embodiments of this application, such as Figure 18 As shown, the display panel 000 may further include: a second cover layer 600 located on the side of the color resist layer 400 facing away from the driving backplate 100, and an inorganic cover layer 700 located on the side of the second cover layer 600 facing away from the driving backplate 100, wherein the refractive index of the inorganic cover layer 700 is greater than that of the second cover layer 600. Here, because the refractive index of the inorganic cover layer 700 is greater than that of the second cover layer 600, when ambient light shines on the display panel, after passing through the inorganic cover layer 700, total internal reflection may occur at the interface between the second cover layer 600 and the inorganic cover layer 700, resulting in less light emanating from the inorganic cover layer 700, thereby further reducing the reflectivity of the display panel 000.

[0118] In this case, to more clearly see the reflectivity of display panel 000 after the inorganic cover layer 700 is set inside the display panel, compared to the reflectivity of display panel 000 without the inorganic cover layer 700, please refer to... Figure 19 , Figure 19 This is a comparison chart of the reflectivity of a display panel with and without an inorganic cover layer, provided by an embodiment of this application. Here, the reflectivity curve of the display panel 000 without the inorganic cover layer 700 is labeled L1, and the reflectivity curve of the display panel with the inorganic cover layer 700 is labeled L2. As can be seen from the figure, the reflectivity of the display panel with the inorganic cover layer 700 shows a particularly significant decrease across the visible light wavelength range. It should be noted that the reflectivity of the display panel 000 shown here only considers the reflectivity brought about by the second cover layer 600 and the inorganic cover layer 700, and does not include the reflectivity brought about by the auxiliary color resist structure 402 and the black matrix 300 in the above embodiment. Thus, the inorganic cover layer 700 can effectively reduce the reflectivity brought about by the second cover layer 600 in the display panel 000.

[0119] In this application, the thickness of the inorganic cover layer 700 ranges from 500 angstroms to 1500 angstroms. If the thickness of the inorganic cover layer 700 is less than 500 angstroms, ambient light passing through it will not undergo total internal reflection at the interface between the second cover layer 600 and the inorganic cover layer 700, resulting in a high reflectivity of the display panel. If the thickness of the inorganic cover layer 700 is greater than 1500 angstroms, the display panel 000 will be thicker and more prone to warping and film separation, leading to poor reliability of the display panel 000. Therefore, this application allows the thickness of the inorganic cover layer 700 to be greater than 500 angstroms and less than 1500 angstroms.

[0120] It should be noted that since both the inorganic cover layer 700 and the second cover layer 600 are integrally disposed on the side of the color resist layer 400 facing away from the driving backplate 100, the second cover layer 600 and the inorganic cover layer 700 can be formed using the same photomask, thus simplifying the manufacturing process of the display panel 000. It should also be noted that the inorganic cover layer 700 can be made of at least one of magnesium fluoride, silicon dioxide, aluminum oxide, silicon oxide, silicon nitride, titanium oxide, tantalum oxide, and zinc sulfide.

[0121] In the embodiments of this application, please refer to Figure 20 , Figure 20 This is a schematic diagram of another display panel structure provided in the embodiments of this application. The display panel 000 may further include: multiple photosensitive devices 800 located on one side of the driving back plate 100, the black matrix 300 having multiple second light-transmitting holes V2 corresponding to the multiple photosensitive devices 800, and the auxiliary color resist structure 402 having multiple third light-transmitting holes V3 corresponding to the multiple photosensitive devices 800.

[0122] In this embodiment, the orthographic projection of the photosensitive device 800 on the driving backplate 100 at least partially overlaps with the orthographic projection of the corresponding second light-passing aperture V2 on the driving backplate 100, and at least partially overlaps with the orthographic projection of the corresponding third light-passing aperture V3 on the driving backplate 100. Thus, the photosensitive device 800 can sense the light emitted from the second light-passing aperture V2 and the third light-passing aperture V3, enabling the photosensitive device 800 to function normally. Here, the photosensitive device 800 can be a photoresistor, a photodiode, or a phototransistor, etc., and this embodiment does not limit its application to this type.

[0123] In this application, multiple photosensitive devices 800 in the display panel 000 can form a fingerprint sensor. When a user's finger touches the display panel 000, the light-emitting device 200 in the area where the user's finger touches emits light, which is directed towards the user's finger. Then, the light emitted by the light-emitting device 200 is reflected by the user's finger and directed from the second light-transmitting hole V2 and the third light-transmitting hole V3 towards the corresponding photosensitive device 800. Finally, the photosensitive device 800 can sense the different intensities of light reflected from the fingerprint valleys and ridges of the user's finger, causing the photosensitive device 800 to generate an induced current based on the sensed light intensity. This allows the display panel 000 to generate image information corresponding to the user's fingerprint based on the induced current generated by the multiple photosensitive devices 800.

[0124] It should be noted that because the display panel 000 has an auxiliary color resist structure 401, the overall reflectivity of the display panel 000 remains low despite the presence of multiple photosensitive devices 800. Thus, the display panel 000 provided in this embodiment can still accommodate a fingerprint sensor while reducing its reflectivity, resulting in a high degree of integration for the display panel 000.

[0125] In this embodiment, the boundary of the orthographic projection of the photosensitive device 800 in the display panel 000 onto the driving back plate 100 coincides with the boundary of the orthographic projection of the corresponding second light-transmitting hole V2 onto the driving back plate 100, and also coincides with the boundary of the orthographic projection of the corresponding third light-transmitting hole V3 onto the driving back plate 100. This allows the photosensitive device 800 to sense a greater amount of target light, resulting in better fingerprint sensor performance. Here, the target light is the light emitted by the light-emitting device 200, reflected by the user's finger, and then directed towards the photosensitive device 800.

[0126] In this application, as Figure 6 , Figure 8 , Figure 10 , Figure 12-14 , Figure 16-17As shown, the position of the third light-passing hole V3 in the color resist layer 400 is the position of the photosensitive device 800. Here, since there are multiple arrangements of the color resist blocks 401 in the display panel 000, there are corresponding multiple arrangements of multiple photosensitive devices 800 and color resist blocks 401. This embodiment only uses... Figure 12 The arrangement shown is illustrated below as an example. Figure 12 The position of the light-transmitting hole V3 in the color resist layer 400 shown corresponds one-to-one with the position of the photosensitive device 800. Because... Figure 12 The portion of the color resist layer 400 shown has four pixels, and these four pixels share a common color resist block 401. Therefore, each pixel has one photosensitive device 800. Thus, this portion of the color resist layer 400 has four photosensitive devices 800. It should be noted that the arrangement of the photosensitive devices 800 can be referenced in other possible arrangements. Figure 6 , Figure 8 , Figure 10 , Figure 13-14 ,and Figure 16-17 The arrangement shown in this embodiment will not be described in detail here.

[0127] In the embodiments of this application, please refer to Figure 21 , Figure 21 This is a schematic diagram of the film layers of a display panel provided in an embodiment of this application. The display panel 000 may further include: an encapsulation layer 900 located on the side of the plurality of light-emitting devices 200 away from the driving backplate 100, and a touch layer 1000 located on the side of the encapsulation layer 900 away from the driving backplate 100.

[0128] The driving backplane 100 may include a substrate 101, and a plurality of pixel driving circuits 102 and a plurality of sensing driving circuits 103 located on the substrate 101. The plurality of pixel driving circuits 102 may be electrically connected to a plurality of light-emitting devices 200 in a one-to-one correspondence, and the plurality of sensing driving circuits 103 may be electrically connected to a plurality of photosensitive devices 800 in a one-to-one correspondence.

[0129] Each pixel driving circuit 102 may include an active layer 1021, a first gate 1022, a second gate 1023, a source 1024, a drain 1025, and a first transition electrode 1026. The active layer 1021 is insulated from the first gate 1022 by a first gate insulating layer 1100, and the first gate 1022 is insulated from the second gate 1023 by a second gate insulating layer 1200. The active layer 1021 is electrically connected to both the source 1024 and the drain 1025. Typically, the source 1024 and the drain 1025 are disposed on the same layer, meaning they belong to the same conductive pattern. The conductive pattern containing the source 1024 and the drain 1025 is insulated from the second gate 1023 by an insulating layer.

[0130] Each sensor driving circuit 103 may also include: an active layer 1031, a gate 1032, a source 1033, a drain 1034, and a second transition electrode 1035. The second gate 1023 in the pixel driving circuit 102 is insulated from the active layer 1031 in the sensor driving circuit 103 by a first insulating layer 1300. The active layer 1031 and the gate 1032 can be insulated from each other by a third gate insulating layer 1400. The active layer 1031 is electrically connected to the source 1033 and the drain 1034, respectively. Typically, the source 1033 and the drain 1034 are disposed on the same layer, that is, the source 1033 and the drain 1034 belong to the same conductive pattern. The conductive pattern containing the source 1033 and the drain 1034 can be insulated from the second gate 1023 by a second insulating layer 1500.

[0131] It should be noted that the conductive patterns of the source 1024 and drain 1025 in the pixel driving circuit 102 can be insulated from the second gate 1023 by the first insulating layer 1300, the third gate insulating layer 1400, and the second insulating layer 1500. Here, the active layer, the first gate, the second gate, the source, and the drain in the pixel driving circuit 102 can form a thin-film transistor, and this embodiment is illustrated using a top-gate thin-film transistor as an example. In other optional implementations, the thin-film transistor can also be a bottom-gate thin-film transistor, and this embodiment does not limit this. Similarly, the sensing driving circuit 103 can also form a top-gate thin-film transistor, and this embodiment does not limit this.

[0132] In this application, one of the source electrode 1033 and drain electrode 1034 in the sensor driving circuit 103 can be electrically connected to the photosensitive device 800 through the second transfer electrode 1035. One of the source electrode 1024 and drain electrode 1025 in the pixel driving circuit 102 can be electrically connected to the light-emitting device 200 through the first transfer electrode 1026. The second transfer electrode 1035 is insulated from the conductive layer containing the source electrode 1033 and drain electrode 1034 by a third insulating layer 1600, and the first transfer electrode 1026 is also insulated from the conductive layer containing the source electrode 1024 and drain electrode 1025 by the third insulating layer 1600.

[0133] The light-emitting device 200 may include multiple stacked anode layers 201, light-emitting layers 202, and cathode layers 203. The light-emitting device 200 may be an organic light-emitting display (OELD). Here, each pixel driving circuit 102 can be electrically connected to the corresponding anode layer 201 in the light-emitting device 200 via a first transition electrode 1026. For example, a first planarization layer 1700 is provided between the first transition electrode 1026 and the anode layer 201.

[0134] The photosensitive device 800 may include a driving electrode 801 located on the side of the photosensitive device 800 opposite to the substrate 101. The driving electrode 801 is electrically connected to the photosensitive device 800. When the photosensitive device 800 is working, the display panel 000 can apply a working voltage to the photosensitive device 800 through the driving electrode 801, so that the photosensitive device 800 can sense light. The first planarization layer 1700 described above is provided between the driving electrode 801 and the second transition electrode 1035. Here, the orthographic projection of the driving electrode 801 on the driving back plate 100 does not overlap with the orthographic projection of the third light-transmitting hole V3 on the driving back plate 100; the orthographic projection of the driving electrode 801 on the driving back plate 100 also does not overlap with the orthographic projection of the second light-transmitting hole V2 on the driving back plate 100. As a result, the light reflected from the user's finger will not be reflected by the driving electrode 801, resulting in a poor sensing effect of the photosensitive device 800.

[0135] It should be noted that the active layer 1021, the first gate 1022, and the second gate 1023 in the pixel driving circuit 102 are all fabricated using a low-temperature polycrystalline silicon process. The active layer 1031, the gate 1032, the source 1033, the drain 1034, and the second transition electrode 1035 in the sensor driving circuit 103 are all fabricated using a low-temperature polycrystalline oxide process. This reduces noise during the operation of the photosensitive device 800, resulting in better sensing performance of the fingerprint sensor.

[0136] It should also be noted that the source 1024 and drain 1025 of the pixel driving circuit 102 and the source 1033 and drain 1034 of the sensing driving circuit 103 can be formed through a single patterning process. The first transition electrode 1026 and the second transition electrode 1035 can also be formed through a single patterning process. The anode layer 201 and the driving electrode 801 can also be formed through a single patterning process. The single patterning process here, as well as the single patterning process in the following embodiments, includes: photoresist coating, exposure, development, etching, and photoresist stripping. Here, in some possible implementations, since the driving electrode 801 is usually prepared from multiple conductive layers, when the driving electrode 801 is prepared from multiple conductive layers, the metal conductive layer in the multiple conductive layers can be formed with the anode layer 201 through a single patterning process.

[0137] The display panel 000 may further include a pixel defining layer 1800. The portion of the pixel defining layer 1800 located within the display area has a plurality of pixel holes V4. Within each pixel hole V4, the portion of the anode layer 201 located within the pixel hole V4, the portion of the light-emitting layer 202 located within the pixel hole V4, and the portion of the cathode layer 203 located within the pixel hole V4 can form a light-emitting device 200.

[0138] The encapsulation layer 900 may include a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked together. The encapsulation layer 900 is used to encapsulate the light-emitting device 200 to prevent the light-emitting layer 202 in the light-emitting device 200 from being corroded by components such as moisture and oxygen in the air, thus preventing damage. In this way, the encapsulation layer 900 can effectively improve the service life of the light-emitting device 200.

[0139] The touch layer 1000 is located between the encapsulation layer 900 and the black matrix 300. The touch layer 1100 may include: transparent touch electrodes (not shown) and touch signal lines 1001 electrically connected to the touch electrodes. The orthographic projection of the touch signal lines 1001 on the driving backplate 100 does not coincide with the orthographic projection of the multiple photosensitive devices 800 on the driving backplate 100. Thus, after a user's finger touches the display panel 000, the touch layer 1000 in the display panel 000 can obtain the position information of the area of ​​the display panel touched by the user's finger according to the current change on the touch electrodes, so that the light-emitting devices 200 in the area touched by the user's finger emit light.

[0140] In this application, since the touch signal line 1001 is usually made of metal, the touch signal line 1001 is located within the orthographic projection of the black matrix 300 on the driving back plate 100. That is, the touch signal line 1001 does not overlap with the photosensitive device 800, so that the light emitted by the light-emitting device 200 will not be reflected by the touch signal line 1001, thereby making the photosensitive device 800 have a better light-sensing effect.

[0141] In this embodiment, the display panel 000 is a foldable display panel, and the display panel 000 may further include an ultra-thin glass UTG cover plate 1900 located on the side of the color resist layer 400 away from the driving back plate 100. Here, the ultra-thin glass UTG cover plate 1900 is transparent glass with a certain degree of flexibility, allowing the display panel 000 to be bent. For example, the ultra-thin glass UTG cover plate 1900 is made of ultra-thin glass (UTG) material. This embodiment illustrates the example where the ultra-thin glass UTG cover plate 1900 is located on the side of the inorganic cover layer 700 away from the driving back plate 100. In other possible implementations, the ultra-thin glass UTG cover plate 1900 may also be located on the side of the inorganic cover layer 700 closer to the driving back plate 100, and this embodiment does not limit this.

[0142] In this application, when the display panel 000 includes a photosensitive device 800, the structure of the display panel 000 may have several other possible structures. This application embodiment only uses the following three possible structures as examples for illustrative purposes:

[0143] For the first possible structure, please refer to... Figure 22 , Figure 22 This is a schematic diagram of the film layer of another display panel provided in this application embodiment. When the display panel 000 includes a photosensitive device 800, the display panel 000 may further include an auxiliary structure 2000 disposed on the same layer as the driving electrode 801. The auxiliary structure 2000 has no electrical connection with the driving electrode 801 and the anode layer 201. A fourth light-transmitting hole V5 is provided between the auxiliary structure 2000 and the driving electrode 801. The plurality of fourth light-transmitting holes V5 correspond one-to-one with the plurality of third light-transmitting holes V3, and also correspond one-to-one with the plurality of second light-transmitting holes V2. In this way, light reflected from the user's finger can pass through the third light-transmitting hole V3, the second light-transmitting hole V2, and the fourth light-transmitting hole V5 in sequence and be sensed by the photosensitive device 000.

[0144] It should be noted that the orthographic projection of the fourth light-passing hole V5 on the driving back plate 100 is located within the orthographic projection of the third light-passing hole V3 in the auxiliary color resist structure 402 on the driving back plate 100; and the orthographic projection of the fourth light-passing hole V5 on the driving back plate 100 is located within the orthographic projection of the second light-passing hole V2 in the black matrix 300 on the driving back plate 100. Thus, when a user's finger touches the display panel 000, light within a certain angle of the light reflected from the user's finger can reach the photosensitive device 800, resulting in better sensing performance of the photosensitive device 000.

[0145] For the second possible structure, please refer to... Figure 23 , Figure 23This is a schematic diagram of the film layer of another display panel provided in this application embodiment. The pixel defining layer 1800 in the display panel 000 can be a black pixel defining layer 1800, and the pixel defining layer 1800 has a plurality of fifth light-transmitting holes V6 corresponding to the photosensitive device 800. In this way, when ambient light shines on the display panel, the black pixel defining layer 1800 can further absorb the ambient light shining into the display panel 000, making the reflectivity of the display panel 000 low. Furthermore, the plurality of fifth light-transmitting holes V6 correspond one-to-one with the plurality of third light-transmitting holes V3, and the plurality of fifth light-transmitting holes V6 also correspond one-to-one with the plurality of second light-transmitting holes V2. In this way, the light reflected from the user's finger can pass through the third light-transmitting hole V3, the second light-transmitting hole V2, and the fifth light-transmitting hole V6 in sequence and be sensed by the photosensitive device 000.

[0146] It should be noted that the orthographic projection of the fifth light-passing hole V6 on the driving back plate 100 is located within the orthographic projection of the third light-passing hole V3 in the auxiliary color resist structure 402 on the driving back plate 100; and the orthographic projection of the fifth light-passing hole V6 on the driving back plate 100 is located within the orthographic projection of the second light-passing hole V2 in the black matrix 300 on the driving back plate 100. Thus, when a user's finger touches the display panel 000, light within a certain angle of the light reflected from the user's finger can reach the photosensitive device 800, resulting in better sensing performance of the photosensitive device 000.

[0147] In this configuration, the display panel 000 may further include a first transparent planarization layer 2100 located between the black pixel defining layer 1800 and the light-emitting layer 202 in the light-emitting device 200. Thus, by providing the first transparent planarization layer 2100, the display panel 000 can achieve a better morphology for the light-emitting layer 202 and the cathode layer 203 in the light-emitting device 200, thereby increasing the reliability of the light-emitting device 200, while reducing the reflectivity of the display panel 000.

[0148] For the third possible structure, please refer to... Figure 24 , Figure 24This is a schematic diagram of the film layer of another display panel provided in this application embodiment. When the display panel 000 includes a photosensitive device 800, the first planarization layer 1700 in the display panel 000 can be a black first planarization layer 1700, and the first planarization layer 1700 has a plurality of sixth light-transmitting holes V7 corresponding to the photosensitive device 800. In this way, when ambient light shines on the display panel, the black first planarization layer 1700 can further absorb the ambient light shining into the display panel 000, making the reflectivity of the display panel 000 low. Furthermore, the plurality of sixth light-transmitting holes V7 correspond one-to-one with the plurality of third light-transmitting holes V3, and the plurality of sixth light-transmitting holes V7 also correspond one-to-one with the plurality of second light-transmitting holes V2. In this way, the light reflected from the user's finger can pass through the third light-transmitting hole V3, the second light-transmitting hole V2, and the sixth light-transmitting hole V7 in sequence and be sensed by the photosensitive device 000.

[0149] It should be noted that the orthographic projection of the sixth light-passing hole V7 on the driving back plate 100 is located within the orthographic projection of the third light-passing hole V3 in the auxiliary color resist structure 402 on the driving back plate 100; and the orthographic projection of the sixth light-passing hole V7 on the driving back plate 100 is located within the orthographic projection of the second light-passing hole V2 in the black matrix 300 on the driving back plate 100. Thus, when a user's finger touches the display panel 000, light within a certain angle of the light reflected from the user's finger can reach the photosensitive device 800, resulting in better sensing performance of the photosensitive device 000.

[0150] In this configuration, the display panel 000 may further include a second transparent planarization layer 2200 located between the black pixel defining layer 1800 and the first planarization layer 1700. Thus, by providing the second transparent planarization layer 2200, the display panel 000 can achieve better morphology of the light-emitting layer 202 and the cathode layer 203 in the light-emitting device 200, thereby increasing the reliability of the light-emitting device 200, while reducing the reflectivity of the display panel 000.

[0151] In summary, the display panel provided in this application includes: a driving backplane, light-emitting devices, a black matrix, and a color resist layer. The color resist layer has color resist blocks corresponding to the light-emitting devices and an auxiliary color resist structure corresponding to the black matrix. Since the orthographic projection of the auxiliary color resist structure onto the driving backplane at least partially overlaps with the orthographic projection of the black matrix onto the driving backplane, when ambient light shines on the display panel, the ambient light must pass through the auxiliary color resist structure before reaching the black matrix, thus reducing the intensity of the ambient light hitting the black matrix. In this way, most of the ambient light hitting the black matrix within the display panel is absorbed by the auxiliary color resist structure during its passage, and only a small portion of the light is reflected off the surface of the black matrix and out of the display panel. This effectively reduces the reflectivity of the display panel, ensuring that the intensity of the ambient light reflected by the display panel does not significantly interfere with the light emitted by the light-emitting devices in the display panel, thereby increasing the reliability of the display panel.

[0152] This application also provides a display device. The display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. The display device may include a power supply component and a display panel 000, wherein the display panel 000 can be an OLED display panel or an Active Matrix Organic Light Emitting Diode (AM-OLED) display panel.

[0153] In this embodiment, the display panel 000 can be the display panel 000 described in the above embodiments. For example, it can be... Figure 2 , Figure 3 , Figure 18 , Figure 20 , Figure 21 , Figure 22 , Figure 23 or Figure 24 The display panel is shown. The power supply component is connected to the display panel 000 and is used to supply power to the display panel 000.

[0154] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0155] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0156] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, include: Drive backplane; Multiple light-emitting devices located on one side of the drive backplate; A black matrix located on the side of the plurality of light-emitting devices facing away from the driving back plate, the black matrix having a plurality of first light-transmitting holes corresponding one-to-one with the plurality of light-emitting devices, the orthographic projection of the light-emitting device on the driving back plate being located within the orthographic projection of the corresponding first light-transmitting hole on the driving back plate; And, a color resist layer located on the side of the black matrix away from the driving back plate, the color resist layer comprising: a plurality of color resist blocks corresponding one-to-one with the plurality of first light-transmitting holes, and an auxiliary color resist structure located between two adjacent color resist blocks; Wherein, the orthographic projection of the first light-transmitting hole on the driving back plate is located within the orthographic projection of the corresponding color resist block on the driving back plate, and the orthographic projection of the auxiliary color resist structure on the driving back plate at least partially overlaps with the orthographic projection of the black matrix on the driving back plate. The plurality of color resist blocks include: three types of color resist blocks with different colors; the plurality of color resist blocks include: red color resist block, green color resist block and blue color resist block; The auxiliary color resist structure includes a first part, a second part, and a third part. The projected area of ​​the third part on the drive backplate is smaller than the projected area of ​​the first part on the drive backplate, but larger than the projected area of ​​the second part on the drive backplate. The first part is the same color as the red color resist, the second part is the same color as the green color resist, and the third part is the same color as the blue color resist. The first part is distributed at least on one side of the red color resist, the second part is distributed at least on one side of the green color resist, and the third part is distributed at least on one side of the blue color resist.

2. The display panel according to claim 1, characterized in that, The auxiliary color resist structure has multiple opening areas that correspond one-to-one with the multiple color resist blocks, and the boundary of the orthographic projection of the opening area on the drive back plate coincides with the boundary of the orthographic projection of the corresponding color resist block on the drive back plate.

3. The display panel according to claim 2, characterized in that, The orthographic projection of the black matrix on the drive backplate lies within the orthographic projection of the auxiliary color resist structure on the drive backplate.

4. The display panel according to any one of claims 1 to 3, characterized in that, The display panel further includes a first cover layer located between the black matrix and the color resist layer, wherein the thickness of the first cover layer is greater than or equal to the thickness of the black matrix.

5. The display panel according to claim 4, characterized in that, The display panel further includes: a second cover layer located on the side of the color resist layer opposite to the driving back plate, and an inorganic cover layer located on the side of the second cover layer opposite to the driving back plate, wherein the refractive index of the inorganic cover layer is greater than the refractive index of the second cover layer.

6. The display panel according to claim 5, characterized in that, The thickness of the inorganic capping layer ranges from 500 angstroms to 1500 angstroms.

7. The display panel according to any one of claims 1-3 and 5-6, characterized in that, The display panel further includes: a plurality of photosensitive devices located on one side of the driving back plate; the black matrix also has a plurality of second light-transmitting holes corresponding one-to-one with the plurality of photosensitive devices; and the auxiliary color resist structure has a plurality of third light-transmitting holes corresponding one-to-one with the plurality of photosensitive devices. The orthographic projection of the photosensitive device on the driving back plate at least partially overlaps with the orthographic projection of the corresponding second light-transmitting hole on the driving back plate, and at least partially overlaps with the orthographic projection of the corresponding third light-transmitting hole on the driving back plate.

8. The display panel according to claim 7, characterized in that, The boundary of the orthographic projection of the photosensitive device on the driving back plate coincides with the boundary of the orthographic projection of the corresponding second light-transmitting hole on the driving back plate, and also coincides with the boundary of the orthographic projection of the corresponding third light-transmitting hole on the driving back plate.

9. The display panel according to claim 7, characterized in that, The display panel further includes: an encapsulation layer located on the side of the plurality of light-emitting devices facing away from the driving backplate, and a touch layer located on the side of the encapsulation layer facing away from the driving backplate; The touch layer is located between the encapsulation layer and the black matrix, and the touch layer has touch signal lines. The orthographic projection of the touch signal lines on the driving backplane does not coincide with the orthographic projection of the plurality of photosensitive devices on the driving backplane.

10. The display panel according to claim 7, characterized in that, The display panel is a foldable display panel, and the display panel also includes an ultra-thin glass UTG cover plate located on the side of the color resist layer opposite to the driving back plate.

11. A display device, characterized in that, include: A power supply component and a display panel, wherein the display panel is the display panel according to any one of claims 1 to 10, and the power supply component is used to supply power to the display panel.

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