Display panel and display apparatus

Abstract

The present application relates to the technical field of display, and discloses a display panel and a display apparatus. The display panel has a display area, wherein the display area comprises a plurality of display subareas, and the plurality of display subareas are sequentially arranged from the center of the display panel to the periphery thereof. The display panel comprises: a driving backplane, an encapsulation layer, a plurality of light-emitting devices, and a plurality of optical structures, wherein the plurality of optical structures correspond to the plurality of light-emitting devices, and each optical structure is used for converging light emitted from the corresponding light-emitting device. For any two different display subareas, the light converging capability of the optical structures in the display subareas closer to the center of the display panel is greater than the light converging capability of the optical structures in the display subareas farther away from the center of the display panel. In this way, the brightness of the display subareas closer to the center of the display panel is increased to a greater extent, thereby solving the problem of uneven light emission of the display panel and improving brightness uniformity of the display panel.

Description

Display panel and display device

[0001] This application claims priority to Chinese Patent Application No. 202510096317.8, filed on January 21, 2025, entitled “Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0003] Organic light-emitting diodes (OLEDs) are current-driven organic light-emitting devices. OLED display panels are widely used in the display field due to their advantages such as thinness, self-illumination, high resolution, and fast response speed. In particular, silicon-based OLED display panels, with their small pixel size and high pixel density, can be widely used in display products with high resolution and small size requirements, such as augmented reality (AR) devices and virtual reality (VR) devices.

[0004] A silicon-based OLED display panel typically includes a driving backplane and multiple light-emitting devices located on the driving backplane. Each light-emitting device includes a first electrode layer, an organic light-emitting layer, and a second electrode layer stacked along a direction away from the driving backplane. The second electrode layer is usually a single, continuous layer; that is, the second electrode layers of multiple light-emitting devices are connected together. The periphery of the second electrode layer can be electrically connected to an auxiliary electrode ring, which can receive a cathode signal. Therefore, the second electrode layer can receive a cathode signal through the auxiliary electrode ring.

[0005] However, due to the high resistance of the second electrode layer and the long transmission path of the cathode signal, the attenuation of the cathode signal is more significant the farther away from the auxiliary electrode ring. This results in the cathode signal at a distance farther from the auxiliary electrode ring being different from the cathode signal at a distance closer to the auxiliary electrode ring, which can easily cause uneven light emission in silicon-based OLED display panels. Summary of the Invention

[0006] This application provides a display panel and display device that can solve the problem of uneven light emission in silicon-based OLED display panels. The technical solution is as follows:

[0007] On one hand, a display panel is provided, the display panel having a display area, the display area including multiple display partitions, the multiple display partitions being arranged sequentially from the center to the periphery of the display panel; the display panel includes: a driving backplane, an encapsulation layer, multiple light-emitting devices, and multiple optical structures;

[0008] The plurality of light-emitting devices are located on the same side of the driving back plate and are all distributed within the display area, and the plurality of light-emitting devices are all electrically connected to the driving back plate;

[0009] The encapsulation layer is located on the side of the plurality of light-emitting devices that is away from the driving backplate;

[0010] The plurality of optical structures are located on the side of the encapsulation layer away from the driving backplate. The plurality of optical structures correspond to the plurality of light-emitting devices, and the orthographic projection of the light-emitting device on the driving backplate overlaps with the orthographic projection of the corresponding light-emitting device on the driving backplate. The optical structures are used to converge the light emitted by the corresponding light-emitting device.

[0011] Specifically, for any two different display zones, the light-gathering ability of the optical structure located in the display zone closer to the center of the display panel is greater than that of the optical structure located in the display zone further away from the center of the display panel.

[0012] Optionally, the light-gathering ability of each optical structure distributed within the same display partition is the same; and the light-gathering ability of the optical structures distributed in the multiple display partitions increases sequentially along the periphery of the display panel towards the center of the display panel.

[0013] Optionally, all of the plurality of optical structures are plano-convex lenses, and the plano-convex lenses bulge outward from the side opposite to the corresponding light-emitting device;

[0014] The plano-convex lenses distributed within the same display partition are all the same size and material, while the plano-convex lenses distributed in different display partitions are different in size and / or material.

[0015] Optionally, when the plano-convex lenses distributed in different display partitions are made of the same material but are different in size, for any two different display partitions, the arch height of the plano-convex lens distributed in the display partition closer to the center of the display panel is greater than the arch height of the plano-convex lens distributed in the display partition further away from the center of the display panel.

[0016] Optionally, the plano-convex lenses distributed in different display zones all have the same aperture.

[0017] Optionally, when the plano-convex lenses distributed in different display partitions are made of the same material but are different in size, for any two different display partitions, the aperture of the plano-convex lens distributed in the display partition closer to the center of the display panel is larger than the aperture of the plano-convex lens distributed in the display partition further away from the center of the display panel.

[0018] Optionally, the plano-convex lenses distributed in different display zones have the same arch height.

[0019] Optionally, when the plano-convex lenses distributed in different display partitions are made of the same material but are different in size, for any two different display partitions, the arch height of the plano-convex lens distributed in the display partition closer to the center of the display panel is greater than the arch height of the plano-convex lens distributed in the display partition further away from the center of the display panel; and the aperture of the plano-convex lens distributed in the display partition closer to the center of the display panel is greater than the aperture of the plano-convex lens distributed in the display partition further away from the center of the display panel.

[0020] Optionally, when the plano-convex lenses distributed in different display zones are of the same size but made of different materials, for any two different display zones, the refractive index of the plano-convex lens distributed in the display zone closer to the center of the display panel is greater than the refractive index of the plano-convex lens distributed in the display zone further away from the center of the display panel.

[0021] Optionally, when the plano-convex lenses distributed in different display partitions are of different sizes and made of different materials, for any two different display partitions, the refractive index of the plano-convex lens distributed in the display partition closer to the center of the display panel is greater than the refractive index of the plano-convex lens distributed in the display partition further away from the center of the display panel; and for any two different display partitions, the camber of the plano-convex lens distributed in the display partition closer to the center of the display panel is greater than the camber of the plano-convex lens distributed in the display partition further away from the center of the display panel; and / or, the aperture of the plano-convex lens distributed in the display partition closer to the center of the display panel is greater than the aperture of the plano-convex lens distributed in the display partition further away from the center of the display panel.

[0022] Optionally, any two adjacent display partitions are separated by a boundary line, and the area enclosed by the boundary line is circular or elliptical in shape.

[0023] Optionally, the display panel includes a first electrode layer, a pixel definition layer, an organic light-emitting layer, and a second electrode layer;

[0024] The first electrode layer is located on one side of the drive back plate, and the first electrode layer has a plurality of separately disposed first electrodes, which are electrically connected to the drive back plate.

[0025] The pixel definition layer is located on the side of the first electrode layer opposite to the driving backplate;

[0026] The organic light-emitting layer is located on the side of the pixel definition layer opposite to the driving backplate;

[0027] The second electrode layer is located on the side of the organic light-emitting layer opposite to the driving backplate;

[0028] The pixel definition layer has multiple pixel openings and a partition structure distributed between two adjacent pixel openings. The partition structure is used to isolate at least a portion of the organic material layer in the organic light-emitting layer.

[0029] Optionally, the display panel further includes a non-display area located around the display area; the driving backplate includes an auxiliary electrode ring located within the non-display area, the auxiliary electrode ring being disposed around the display area, and the portion of the second electrode layer located within the non-display area being electrically connected to the auxiliary electrode ring.

[0030] Optionally, the display panel further includes: a light filter layer, an adhesive layer, and a protective cover plate;

[0031] The filter layer is located on the side of the encapsulation layer opposite to the drive backplate;

[0032] The plurality of optical structures are located on the side of the filter layer opposite to the drive backplate;

[0033] The adhesive layer is located on the side of the plurality of optical structures opposite to the drive backplate;

[0034] The protective cover is located on the side of the adhesive layer opposite to the drive back plate;

[0035] The refractive index of the optical structure is greater than that of the adhesive layer.

[0036] On the other hand, a display device is provided, including a driver chip and any of the above-described display panels, wherein the driver chip is electrically connected to the display panel.

[0037] The beneficial effects of the technical solution provided in this application include at least the following:

[0038] For any two different display zones, the light-gathering ability of the optical structures located closer to the center of the display panel can be greater than that of the optical structures located further away from the center. Thus, the brightness increase in the display zone closer to the center is greater, making the brightness of the display zone closer to the center approximately the same as that of the display zone further away from the center. This can offset the brightness attenuation from the periphery to the center of the display panel caused by cathode signal attenuation, thereby solving the problem of uneven light emission from the display panel and improving the brightness uniformity of the display panel. Attached Figure Description

[0039] 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.

[0040] Figure 1 is a schematic diagram of the film layer structure of a display panel provided by related technologies;

[0041] Figure 2 is a top view of a display panel provided in an embodiment of this application;

[0042] Figure 3 is a schematic diagram of the film structure of the display panel at B-B' shown in Figure 2;

[0043] Figure 4 is a partial enlarged view of the display panel shown in Figure 3 at point C;

[0044] Figure 5 is another enlarged view of the display panel shown in Figure 3 at point C;

[0045] Figure 6 is another enlarged view of the display panel shown in Figure 3 at point C;

[0046] Figure 7 is another enlarged view of the display panel shown in Figure 3 at point C;

[0047] Figure 8 is another enlarged view of the display panel shown in Figure 3 at point C;

[0048] Figure 9 is another enlarged view of the display panel shown in Figure 3 at point C;

[0049] Figure 10 is another enlarged view of the display panel shown in Figure 3 at point C;

[0050] Figure 11 is another enlarged view of the display panel shown in Figure 3 at point C;

[0051] Figure 12 is a top view of another display panel provided in an embodiment of this application;

[0052] Figure 13 is a top view of another display panel provided in an embodiment of this application;

[0053] Figure 14 is a top view of another display panel provided in an embodiment of this application;

[0054] Figure 15 is a schematic diagram of the film layer structure of a display panel provided in an embodiment of this application;

[0055] Figure 16 is a top view of another display panel provided in an embodiment of this application;

[0056] Figure 17 is a schematic diagram of the film structure of another display panel provided in an embodiment 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] In related technologies, silicon-based OLED display panels generally include a driving backplane and multiple light-emitting devices located on one side of the driving backplane. The light-emitting devices may include a first electrode layer, an organic light-emitting layer, and a second electrode layer stacked along a direction away from the driving backplane. The organic light-emitting layer may consist of multiple stacked sub-light-emitting layers, each of which may include a stacked hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer, and an electron injection layer. These sub-light-emitting layers can be connected in series via charge generation layers. Thus, the color of the light emitted by the organic light-emitting layer can be determined by the multiple sub-light-emitting layers. For example, sub-light-emitting layers capable of emitting yellow light and blue light can be stacked to make the organic light-emitting layer emit white light.

[0059] The first electrode layer can be electrically connected to the driving backplane. When a corresponding voltage is applied to the first and second electrode layers, an electric field is formed between them. Thus, the hole injection layer can inject holes into the hole transport layer, which then transports them to the light-emitting material layer. Similarly, the electron injection layer can inject electrons into the electron transport layer, which then transports them to the light-emitting material layer. Holes and electrons combine within the light-emitting material layer to form high-energy excitons. These high-energy excitons are unstable and easily transition to low-energy excitons, releasing energy and generating photons to emit light within a specific wavelength range. When the organic light-emitting layer consists of multiple sub-light-emitting layers, the charge-generating layer used to connect these sub-light-emitting layers is typically made of a material with good conductivity to ensure that each sub-light-emitting layer can emit light, thereby improving the luminescence effect of the organic light-emitting layer.

[0060] In light-emitting devices, the organic light-emitting layers are uniformly deposited using a vapor deposition process. This means that the sub-light-emitting layers and charge-generating layers in each device are connected together. Because the charge-generating layer has good conductivity, during the emission of light from a particular device, its charge-generating layer may generate lateral leakage current, causing adjacent devices to emit light. Therefore, pixel definition layers with isolation structures are needed between adjacent devices to separate them. These isolation structures can isolate at least a portion of the organic material layers in the organic light-emitting layer, such as the charge-generating layer, thereby effectively preventing lateral leakage current.

[0061] In light-emitting devices, the second electrode layer is typically a single, continuous layer, meaning that the second electrode layers in each device are electrically connected to each other. The periphery of the second electrode layer can be electrically connected to an auxiliary electrode ring, which can then receive a cathode signal. Therefore, the second electrode layer can receive a cathode signal through the auxiliary electrode ring.

[0062] However, due to the high resistance of the second electrode layer, which is set up as a whole, and the long transmission path of the cathode signal, especially for larger display panels, the attenuation of the cathode signal is more obvious the farther away from the auxiliary electrode ring. This results in the cathode signal at a distance farther from the auxiliary electrode ring being different from the cathode signal at a distance closer to the auxiliary electrode ring, which can easily cause uneven light emission in silicon-based OLED display panels.

[0063] Additionally, referring to Figure 1, at the partition structure 03, the second electrode layer 023 will have uneven surfaces, resulting in an increased transmission path for the cathode signal. Furthermore, the second electrode layer 023 will form a puncture 04 at the partition structure 03. The minimum distance L1 between the puncture 04 and the first electrode layer 021 is less than the minimum distance L2 between the second electrode layer 023 and the first electrode layer 021 in the light-emitting device 02. The portion of the organic light-emitting layer 022 located between the puncture 04 and the first electrode layer 021 is distorted, resulting in a thinner film and lower internal resistance. Current will preferentially flow through the portion with lower internal resistance. Thus, some electrons in the second electrode layer 023 can enter the organic light-emitting layer 022 through the puncture 04 and recombine with holes to emit light, leading to leakage.

[0064] Thus, the second electrode layer has unevenness at the partition structure, which increases the transmission path of the cathode signal. In addition, there is also puncture leakage in the second electrode layer. These factors will increase the transmission loss of the cathode signal in the second electrode layer, resulting in more significant attenuation of the cathode signal at positions farther away from the auxiliary electrode ring. Furthermore, the difference between the cathode signal at positions farther away from the auxiliary electrode ring and those closer to the auxiliary electrode ring will be greater, which in turn causes uneven light emission in the silicon-based OLED display panel, resulting in poor brightness uniformity of the silicon-based OLED display panel.

[0065] This application provides a display panel, which can be a silicon-based OLED display panel, and can solve the problem of uneven light emission in the display panel, improving the brightness uniformity of the display panel. Please refer to Figures 2 to 4. Figure 2 is a top view of a display panel provided in this application embodiment, Figure 3 is a schematic diagram of the film layer structure of the display panel at B-B' shown in Figure 2, and Figure 4 is a partial enlarged view of the display panel at C shown in Figure 3. Here, Figures 2 and 3 are only schematic diagrams and do not represent the actual number of display zones, nor the actual number of optical structures and light-emitting devices in each display zone.

[0066] The display panel 000 may have a display area 10, which may include multiple display partitions A. The multiple display partitions A may be arranged sequentially from the center to the periphery of the display panel 000. As shown in Figure 2, for any two adjacent display partitions A, the display partition A further away from the center of the display panel 000 may be arranged around the display partition A closer to the center of the display panel 000.

[0067] It should be noted that if the display partition 10 of the display panel 000 can be an area for displaying images or text, then multiple display partitions A can also be areas for displaying images or text. Furthermore, while Figure 2 shows five display partitions A, the actual number of display partitions A can be more or less than five; this embodiment does not limit this.

[0068] The display panel 000 may include: a driving backplane 100, an encapsulation layer 200, multiple light-emitting devices 300, and multiple optical structures 400.

[0069] Multiple light-emitting devices 300 are located on the same side of the driving backplate 100, and all of the multiple light-emitting devices 300 can be distributed within the display area 10. All of the multiple light-emitting devices 300 can be electrically connected to the driving backplate 100, so that the driving backplate 100 can drive the multiple light-emitting devices 300 to emit light, enabling the display panel 000 to display an image.

[0070] The encapsulation layer 200 can be located on the side of the multiple light-emitting devices 300 away from the driving backplate 100, and is used to encapsulate and protect the multiple light-emitting devices 300 to prevent water and oxygen from the external environment from entering the light-emitting devices 300 and causing damage to the light-emitting devices 300.

[0071] Multiple optical structures 400 can be located on the side of the encapsulation layer 200 away from the driving backplate 100. Multiple optical structures 400 can correspond to multiple light-emitting devices 300, and the orthographic projection of the optical structure 400 on the driving backplate 100 can overlap with the orthographic projection of the corresponding light-emitting device 300 on the driving backplate 100. The optical structure 400 is used to converge the light emitted by the corresponding light-emitting device 300, thereby enhancing the brightness of the corresponding position of the light-emitting device 300 on the display panel 000.

[0072] The optical structures 400 distributed in different display zones A have varying light-gathering capabilities, allowing for individual control of the brightness of each display zone A. For any two different display zones A, the light-gathering capability of the optical structures 400 located closer to the center of the display panel 000 can be greater than that of the optical structures 400 located further away from the center of the display panel 000. Thus, the brightness increase in the display zone closer to the center of the display panel 000 is greater, making the brightness of the display zone closer to the center of the display panel 000 approximately the same as that of the display zone further away from the center of the display panel 000. This can offset the brightness attenuation from the periphery to the center of the display panel 000 caused by cathode signal attenuation, improving the brightness uniformity of the display panel 000.

[0073] It should be noted that one optical structure 400 can correspond to one light-emitting device 300, thus converging the light emitted from one optical device 300, thereby achieving the effect of controlling the brightness of one light-emitting device 300 and improving the accuracy of brightness control. One optical structure 400 can also correspond to multiple light-emitting devices 300, thus converging the light emitted from multiple optical devices 300, thereby achieving the effect of controlling the brightness of multiple light-emitting devices 300 and reducing manufacturing difficulty. This application does not limit the scope of this embodiment.

[0074] In summary, the embodiments of this application provide a display panel in which, for any two different display zones, the light-gathering ability of the optical structure distributed in the display zone closer to the center of the display panel is greater than that of the optical structure distributed in the display zone further away from the center of the display panel. Thus, the brightness increase of the display zone closer to the center of the display panel is greater, making the brightness of the display zone closer to the center of the display panel approximately the same as that of the display zone further away from the center of the display panel. This can offset the brightness attenuation from the periphery to the center of the display panel caused by cathode signal attenuation, thereby solving the problem of uneven light emission in the display panel and improving the brightness uniformity of the display panel.

[0075] For any given display zone A, the brightness of the light emitted by each light-emitting device 300 distributed within that display zone A is relatively similar.

[0076] In this embodiment, the light-gathering capabilities of each optical structure 400 corresponding to each light-emitting device 300 distributed within the same display partition A are all the same. That is, the light-gathering capabilities of each optical structure 400 distributed within the same display partition A are all the same. Thus, after the light is modulated by the optical structure 400, the brightness at various locations within the display partition A is essentially the same.

[0077] For different display zones A, the brightness of the light emitted by the light-emitting devices 300 distributed in different display zones A is different. Along the periphery of the display panel 000, close to the center of the display panel 000, the brightness of the light emitted by the light-emitting devices 300 distributed in multiple display zones A decreases sequentially.

[0078] In this embodiment, the optical structures 400 distributed in different display zones A have different light-gathering capabilities. Preferably, when the number of display zones A is greater than or equal to three, the light-gathering capabilities of the optical structures 400 distributed in multiple display zones A increase sequentially along the periphery of the display panel 000 towards its center. Thus, after the optical structures 400 regulate the light, the brightness of each display zone A can be sequentially increased along the periphery of the display panel 000 towards its center, making the brightness of each display zone A relatively close or essentially uniform. This improves the uneven light emission phenomenon of the display panel 000 and enhances the brightness uniformity of the display panel 000.

[0079] Referring to Figures 5 to 11, in one possible implementation, each of the multiple optical structures 400 can be a plano-convex lens 500. That is, multiple plano-convex lenses 500 can correspond to multiple light-emitting devices 300, and the plano-convex lens 500 protrudes outward from the side opposite to the corresponding light-emitting device 300. In this way, the plano-convex lens 500 can converge the light emitted from the corresponding light-emitting device 300, thereby improving the brightness of the display surface of the display panel 000.

[0080] For any given display partition A, the brightness of the light emitted by each light-emitting device 300 distributed within that partition A is relatively similar. In this embodiment, the size and material of each plano-convex lens 500 corresponding to each light-emitting device 300 distributed within the same display partition A can be identical; that is, the size and material of each plano-convex lens 500 distributed within the same display partition A can be identical. This ensures that the light-convex lens 500 distributed within the same display partition A has the same light-convex focusing ability, thus, after the light is modulated by the plano-convex lens 500, the brightness at various locations within the same display partition A can be made substantially consistent.

[0081] For different display zones A, the brightness of the light emitted by the light-emitting devices 300 distributed in different display zones A is different. In the embodiments of this application, the plano-convex lenses 500 distributed in different display zones A are of different sizes and / or materials. In this way, it can be ensured that the plano-convex lenses 500 distributed in different display zones A have different light-convex focusing capabilities. Therefore, after the light is controlled by the plano-convex lenses 500, the brightness of each display zone A can be made closer or basically the same, thereby improving the problem of uneven light emission of the display panel 000 and improving the brightness uniformity of the display panel 000.

[0082] There are many possibilities for the size and / or material of the plano-convex lenses 500 distributed in different display zones A. This application embodiment will illustrate the following three possible cases as examples.

[0083] In the first possible scenario, referring to Figures 5 to 7, the plano-convex lenses 500 distributed in different display zones A are made of the same material but differ in size. This ensures that the refractive index of the plano-convex lenses 500 distributed in different display zones A is the same, but the arch height H and / or aperture D of the plano-convex lenses 500 are different, resulting in different light-convex focusing capabilities of the plano-convex lenses 500 distributed in different display zones A.

[0084] It should be noted that, to a certain extent, the larger the arch height H of the plano-convex lens 500, the stronger its refractive effect on light and the stronger its light-convexity converging ability; furthermore, the larger the aperture D of the plano-convex lens 500, the more light enters it, and the stronger its light-convexity converging ability. Therefore, by controlling the arch height H and / or aperture D of the plano-convex lens 500, different light-convexity converging abilities can be achieved.

[0085] Here, there are multiple ways to implement the first possible scenario. This application will illustrate the following three implementation methods as examples.

[0086] In the first implementation, the plano-convex lenses 500 distributed in different display zones A have the same aperture D, but different camber H. For any two different display zones A, the camber H of the plano-convex lenses 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the camber H of the plano-convex lenses 500 distributed in the display zone A further away from the center of the display panel 000. For example, as shown in FIG5, for two adjacent display zones A, the camber H1 of the plano-convex lenses 500 distributed in the display zone A closer to the center of the display panel 000 is greater than the camber H2 of the plano-convex lenses 500 distributed in the display zone A further away from the center of the display panel 000.

[0087] Therefore, for any two different display zones A, the light-gathering ability of the plano-convex lens 500 located closer to the center of the display panel 000 is greater than that of the plano-convex lens 500 located further away from the center of the display panel 000. Thus, the brightness increase of the display zone A closer to the center of the display panel 000 is greater, making the brightness of the display zone A closer to the center of the display panel 000 approximately the same as that of the display zone A further away from the center of the display panel 000. This can offset the brightness attenuation from the periphery to the center of the display panel 000 caused by cathode signal attenuation, thereby improving the brightness uniformity of the display panel 000.

[0088] For the light-emitting devices 300 distributed in multiple display zones A, the brightness of the light emitted by the light-emitting devices 300 decreases sequentially along the periphery of the display panel 000 towards the center of the display panel 000. Therefore, when the number of display zones A is greater than or equal to three, the arch height H of the plano-convex lenses 500 distributed in different display zones A can be made to increase sequentially along the direction towards the center of the display panel 000.

[0089] In this way, the light-convex lens 500 distributed in multiple display zones A can be ensured to converge at an increasing rate along the periphery of the display panel 000 towards its center. Thus, after the light is controlled by the plano-convex lens 500, the brightness of each display zone A can be sequentially increased along the periphery of the display panel 000 towards its center, resulting in relatively similar or uniform brightness across all display zones A. This counteracts the brightness attenuation caused by cathode signal attenuation and improves the brightness uniformity of the display panel 000.

[0090] It should be noted that the arch height H of each plano-convex lens 500 distributed within the same display zone A can be the same. For example, as shown in Figure 5, the arch height H2 of two plano-convex lenses 500 distributed in display zone A further away from the center of the display panel 000 is the same. This ensures that each plano-convex lens 500 within the same display zone A is of the same size, thereby ensuring that each plano-convex lens 500 has the same light-convex focusing ability. Therefore, after the plano-convex lenses 500 regulate the light, the brightness at various locations within the same display zone A can be made essentially uniform.

[0091] In the second implementation, the plano-convex lenses 500 distributed in different display zones A have the same arch height H, but different apertures D. For any two different display zones A, the aperture D of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 can be larger than the aperture D of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000. For example, as shown in FIG6, for two adjacent display zones A, the aperture D1 of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 is larger than the aperture D2 of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000.

[0092] Therefore, for any two different display zones A, the light-gathering ability of the plano-convex lens 500 located closer to the center of the display panel 000 is greater than that of the plano-convex lens 500 located further away from the center of the display panel 000. Thus, the brightness increase of the display zone A closer to the center of the display panel 000 is greater, making the brightness of the display zone A closer to the center of the display panel 000 approximately the same as that of the display zone A further away from the center of the display panel 000. This can offset the brightness attenuation from the periphery to the center of the display panel 000 caused by cathode signal attenuation, thereby improving the brightness uniformity of the display panel 000.

[0093] When the number of display zones A is three or more, the aperture D of the plano-convex lenses 500 distributed in different display zones A can be increased sequentially along the direction closer to the center of the display panel 000. This ensures that the light-gathering ability of the plano-convex lenses 500 distributed in multiple display zones A increases sequentially along the periphery of the display panel 000 towards its center. Thus, after the plano-convex lenses 500 regulate the light, the brightness of each display zone A can be sequentially increased along the periphery of the display panel 000 towards its center, resulting in relatively similar or uniform brightness across all display zones A. This counteracts the brightness attenuation caused by cathode signal attenuation and improves the brightness uniformity of the display panel 000.

[0094] It should be noted that, as shown in Figure 6, the aperture D of each plano-convex lens 500 distributed within the same display zone A can be identical. For example, as shown in Figure 6, the aperture D2 of two plano-convex lenses 500 distributed in display zone A further away from the center of the display panel 000 is identical. This ensures that each plano-convex lens 500 within the same display zone A is the same size, thereby ensuring that each plano-convex lens 500 has the same light-convex focusing ability. Therefore, after the plano-convex lenses 500 regulate the light, the brightness at various locations within the same display zone A can be made essentially uniform.

[0095] In the third implementation, the arch height H and aperture D of the plano-convex lenses 500 distributed in different display zones A are different. For any two different display zones A, the arch height H of the plano-convex lenses 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the arch height H of the plano-convex lenses 500 distributed in the display zone A further away from the center of the display panel 000; and the aperture D of the plano-convex lenses 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the aperture D of the plano-convex lenses 500 distributed in the display zone A further away from the center of the display panel 000.

[0096] For example, as shown in FIG7, for two adjacent display partitions A, the camber H1 of the plano-convex lens 500 distributed in the display partition A closer to the center of the display panel 000 is greater than the camber H2 of the plano-convex lens 500 distributed in the display partition A further away from the center of the display panel 000; and the aperture D1 of the plano-convex lens 500 distributed in the display partition A closer to the center of the display panel 000 is greater than the aperture D2 of the plano-convex lens 500 distributed in the display partition A further away from the center of the display panel 000.

[0097] Therefore, for any two different display zones A, the light-gathering ability of the plano-convex lens 500 located closer to the center of the display panel 000 is greater than that of the plano-convex lens 500 located further away from the center of the display panel 000. Thus, the brightness increase of the display zone A closer to the center of the display panel 000 is greater, making the brightness of the display zone A closer to the center of the display panel 000 approximately the same as that of the display zone A further away from the center of the display panel 000. This can offset the brightness attenuation from the periphery to the center of the display panel 000 caused by cathode signal attenuation, thereby improving the brightness uniformity of the display panel 000.

[0098] When the number of display zones A is three or more, the arch height H of the plano-convex lenses 500 distributed in different display zones A can be increased sequentially along the direction closer to the center of the display panel 000, and the aperture D of the plano-convex lenses 500 distributed in different display zones A can also be increased sequentially. This ensures that the light-gathering ability of the plano-convex lenses 500 distributed in multiple display zones A increases sequentially along the periphery of the display panel 000 towards the center. Thus, after the plano-convex lenses 500 regulate the light, the brightness of each display zone A can be increased sequentially along the periphery of the display panel 000 towards the center, making the brightness of each display zone A relatively close or essentially uniform, offsetting the brightness attenuation caused by cathode signal attenuation, and improving the brightness uniformity of the display panel 000.

[0099] In the second possible scenario, referring to Figure 8, the plano-convex lenses 500 distributed in different display zones A are of the same size but made of different materials. This ensures that the arch height H and aperture D of the plano-convex lenses 500 distributed in different display zones A are the same, but their refractive indices differ. Therefore, the light-gathering capabilities of the plano-convex lenses 500 distributed in different display zones A vary. It should be noted that the material of the plano-convex lens 500 affects its refractive index. To a certain extent, the higher the refractive index of the plano-convex lens 500, the stronger its light-deflecting effect, and thus the stronger its light-gathering capability. Therefore, by controlling the material of the plano-convex lens 500, different light-gathering capabilities can be achieved.

[0100] For any two different display zones A, the refractive index of the plano-convex lens 500 located in the display zone A closer to the center of the display panel 000 can be greater than the refractive index of the plano-convex lens 500 located in the display zone A further away from the center of the display panel 000. For example, referring to Figure 8, the plano-convex lenses 500 located in two adjacent display zones A are made of different materials, resulting in different refractive indices for the plano-convex lenses 500 located in different display zones A, and the refractive index of the plano-convex lens 500 located in the display zone A closer to the center of the display panel 000 is greater than the refractive index of the plano-convex lens 500 located in the display zone A further away from the center of the display panel 000.

[0101] Therefore, for any two different display zones A, the light-gathering ability of the plano-convex lens 500 located closer to the center of the display panel 000 is greater than that of the plano-convex lens 500 located further away from the center of the display panel 000. Thus, the brightness increase of the display zone A closer to the center of the display panel 000 is greater, making the brightness of the display zone A closer to the center of the display panel 000 approximately the same as that of the display zone A further away from the center of the display panel 000. This can offset the brightness attenuation from the periphery to the center of the display panel 000 caused by cathode signal attenuation, thereby improving the brightness uniformity of the display panel 000.

[0102] When the number of display zones A is three or more, the refractive index of the plano-convex lenses 500 distributed in different display zones A can be increased sequentially along the direction closer to the center of the display panel 000. This ensures that the light-convex lenses 500 distributed in multiple display zones A have a light-convex focusing ability that increases sequentially along the periphery of the display panel 000 towards its center. Thus, after the plano-convex lenses 500 regulate the light, the brightness of each display zone A can be sequentially increased along the periphery of the display panel 000 towards its center, resulting in relatively similar or uniform brightness across all display zones A. This counteracts the brightness attenuation caused by cathode signal attenuation and improves the brightness uniformity of the display panel 000.

[0103] It should also be noted that the materials of all plano-convex lenses 500 distributed within the same display zone A can be identical. This ensures that the refractive index of all plano-convex lenses 500 within the same display zone A is the same, thereby ensuring that each plano-convex lens 500 has the same light-convex focusing ability. Therefore, after the plano-convex lenses 500 regulate the light, the brightness at various locations within the same display zone A can be made essentially uniform.

[0104] Please refer to Figures 12 to 14. The multiple display partitions A may include: a central display partition A1, and multiple edge display partitions surrounding the central display partition A1. The multiple edge display partitions may include: an outermost edge display partition A3, and other edge display partitions A2.

[0105] Preferably, the plano-convex lenses 500 distributed in the central display partition A1 have the same refractive index, and the refractive index range can be 1.6 to 1.65; the plano-convex lenses 500 distributed in the outermost edge display partition A3 have the same refractive index, and the refractive index range can be 1.4 to 1.5; while the plano-convex lenses 500 distributed in other edge display partitions A2 have a refractive index range of 1.5 to 1.6, and the refractive index of the plano-convex lenses 500 distributed in other edge display partitions A2 increases sequentially along the direction closer to the central display partition A1.

[0106] The plano-convex lens 500 can be made of organic or inorganic materials. When the composition or mass ratio of the material is different, the refractive index of the resulting plano-convex lens 500 will be different. There are multiple ways to achieve different refractive indices of the plano-convex lens 500 by controlling the material of the plano-convex lens 500. This application embodiment illustrates the following three implementation methods as examples.

[0107] In the first implementation, the plano-convex lenses 500 distributed in different display zones A can all be made of organic materials, and the composition and / or mass ratio of the organic materials used in the plano-convex lenses 500 distributed in different display zones A are different.

[0108] For example, the material composition of the plano-convex lens 500 distributed in the central display partition A1 may include: propylene glycol methyl ether acetate, phenolic resin, polyhydroxystyrene derivative, photoacid generator, and additives, with the following mass percentages: propylene glycol methyl ether acetate approximately 76%, phenolic resin approximately 23%, photoacid generator less than 1%, and additives less than 1%; the material composition of the plano-convex lens 500 distributed in the outermost edge display partition A3 may include: propylene glycol methyl ether acetate, acrylic resin, photosensitizer, dioxane, and... The additives, in the following mass percentages: propylene glycol methyl ether acetate approximately 50-80%, acrylic resin approximately 5%-45%, photosensitizer approximately 1%-15%, dioxane approximately 1%, and the remainder being additives; however, the organic materials used for the plano-convex lenses 500 distributed in other edge display zones A2 are not limited, as long as the composition and / or mass percentage of the organic materials are changed so that the refractive index of the plano-convex lenses 500 distributed in other edge display zones A2 increases sequentially along the direction closer to the center of the display panel 000.

[0109] In the second implementation method, the plano-convex lenses 500 distributed in different display zones A can all be made of inorganic materials, and the composition and / or mass ratio of the inorganic materials used in the plano-convex lenses 500 distributed in different display zones A are different.

[0110] For example, the material of the plano-convex lens 500 distributed in the central display partition A1 can be silicon nitride, silicon oxide, or other inorganic materials containing elements such as silicon, oxygen, and nitrogen. However, there is no limitation on the inorganic material used for the plano-convex lens 500 distributed in multiple edge display partitions. It is only necessary to change the composition and / or the mass ratio of the inorganic material so that the refractive index of the plano-convex lens 500 distributed in multiple edge display partitions increases sequentially along the direction closer to the center of the display panel 000.

[0111] In the third implementation, the plano-convex lens 500 distributed in one part of the display partition A can be made of inorganic materials, and the plano-convex lens 500 distributed in another part of the display partition A can be made of organic materials. Furthermore, the composition and / or mass ratio of the inorganic or organic materials used in the plano-convex lenses 500 distributed in different display partitions A are different.

[0112] For example, the plano-convex lens 500 distributed in the central display partition A1 can be made of silicon nitride, silicon oxide, or other inorganic materials containing elements such as silicon, oxygen, and nitrogen; while the material of the plano-convex lens 500 distributed in the outermost edge display partition A3 may include: propylene glycol methyl ether acetate, acrylic resin, photosensitizer, dioxane, and additives, with the following mass percentages: propylene glycol methyl ether acetate approximately 50-80%, acrylic resin approximately 5%-45%, photosensitizer approximately 1%-15%, and dioxane approximately 1%. The percentage is %, and the rest are additives. For other edge display zones A2, the plano-convex lenses 500 located closer to the center of the display panel 000 can be made of inorganic materials, while those located further away from the center can be made of organic materials. This can be achieved by changing the composition and / or mass percentage of the inorganic or organic materials, so that the refractive index of the plano-convex lenses 500 in the other edge display zones A2 increases sequentially along the direction closer to the center of the display panel 000. There is no limit to the number of other edge display zones A2 where the plano-convex lenses 500 are made of inorganic materials.

[0113] Therefore, all three implementation methods described above can ensure that the refractive index of the plano-convex lenses 500 distributed in different display zones A increases sequentially along the direction closer to the center of the display panel 000. This guarantees that the light-gathering ability of the plano-convex lenses 500 distributed in multiple display zones A increases sequentially along the direction closer to the center of the display panel 000. Thus, after adjustment by the plano-convex lenses 500, the brightness of each display zone A is sequentially increased along the direction closer to the center of the display panel 000, and the brightness of each display zone A is approximately the same. This can offset the brightness attenuation caused by cathode signal attenuation and improve the brightness uniformity of the display panel 000.

[0114] It should also be noted that the manufacturing processes used for the plano-convex lens 500 differ between organic and inorganic materials. Organic materials are manufactured using a thermosetting molding process, while inorganic materials are manufactured using a dry etching process. The morphology of the plano-convex lens 500 manufactured using these two processes differs. Specifically, the surface of the plano-convex lens 500 manufactured using the dry etching process may be rougher, and its curvature may be greater. Conversely, the surface of the plano-convex lens 500 manufactured using the thermosetting molding process is smoother, and its curvature is relatively smaller. Thus, compared to the plano-convex lens 500 manufactured using the thermosetting molding process, the plano-convex lens 500 manufactured using the dry etching process has a stronger light-reflecting effect, resulting in a stronger light-convexity focusing ability. Therefore, using inorganic materials to manufacture the plano-convex lenses 500 distributed within the central display zone A1 allows for stronger light-convexity focusing capabilities within the central display zone A1, thereby increasing the brightness of the central display zone A1 and ultimately improving the brightness uniformity of the display panel 000.

[0115] In the third possible scenario, referring to Figures 9 to 11, the plano-convex lenses 500 distributed in different display zones A are of different sizes and made of different materials. This results in different refractive indices, and different vault heights H and / or apertures D of the plano-convex lenses 500 distributed in different display zones A, thus leading to different light-gathering capabilities of the plano-convex lenses 500 distributed in different display zones A. Here, there are multiple implementation methods for the third possible scenario; this application embodiment illustrates this with the following three implementation methods as examples.

[0116] In the first implementation, the plano-convex lenses 500 distributed in different display zones A are made of different materials and have different camber heights H, but the aperture D is the same. Referring to Figure 9, for any two different display zones A, the refractive index of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the refractive index of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000; and for any two different display zones A, the camber height H1 of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the camber height H2 of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000.

[0117] In the second implementation, the plano-convex lenses 500 distributed in different display zones A are made of different materials and have different apertures D, but the same dome height H. Referring to Figure 10, for any two different display zones A, the refractive index of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the refractive index of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000; and for any two different display zones A, the aperture D1 of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the aperture D2 of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000.

[0118] In the third implementation, the plano-convex lenses 500 distributed in different display zones A are made of different materials, and their arch height H and aperture D are also different. Referring to Figure 11, for any two different display zones A, the refractive index of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the refractive index of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000; and for any two different display zones A, the arch height H1 of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the arch height H2 of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000, and the aperture D1 of the plano-convex lens 500 distributed in the display zone A closer to the center of the display panel 000 can be greater than the aperture D2 of the plano-convex lens 500 distributed in the display zone A further away from the center of the display panel 000.

[0119] For any two different display zones A, all three implementation methods described above can achieve a greater light-convex focusing ability of the plano-convex lenses 500 located closer to the center of the display panel 000 than that of the plano-convex lenses 500 located further away from the center of the display panel 000. This results in a greater increase in brightness for the display zone A closer to the center of the display panel 000, making the brightness of the display zone A closer to the center of the display panel 000 approximately the same as that of the display zone A further away from the center of the display panel 000. This can offset the brightness attenuation caused by cathode signal attenuation, improve the uneven light emission of the display panel 000, and enhance the brightness uniformity of the display panel 000.

[0120] It should be noted that the light-convex focusing ability of the plano-convex lens 500 can be characterized by brightness gain. Brightness gain refers to the ratio of the brightness at various locations on the display surface after being adjusted by the plano-convex lens 500 to the brightness at the corresponding locations on the display surface without the plano-convex lens 500. A brightness gain greater than 1 means that the brightness at various locations on the display surface increases after being adjusted by the plano-convex lens 500.

[0121] For example, the brightness gain of each plano-convex lens 500 distributed in the central display partition A1 can be between 1.8 and 2.5; the brightness gain of each plano-convex lens 500 distributed in the outermost edge display partition A3 can be between 1.3 and 1.6; and the brightness gain of the plano-convex lenses 500 distributed in other edge display partitions A2 can be between 1.6 and 1.8, and the brightness gain of the plano-convex lenses 500 distributed in other edge display partitions A2 increases sequentially along the direction closer to the central display partition A1.

[0122] In this way, the brightness of multiple display zones A can be improved, with the central display zone A showing a greater increase than the other edge display zones A2, and the other edge display zones A2 showing a greater increase than the outermost edge display zone A3. This makes the brightness of multiple display zones A more similar or essentially uniform, thus solving the problem of uneven light emission from the display panel 000 and improving the brightness uniformity of the display panel 000.

[0123] Please refer to Figures 12 to 14. The plan view of the display area 10 can be rectangular. For example, the plan view of the display area 10 can be square or rectangular. Of course, the plan view of the display area 10 can also be other shapes.

[0124] Any two adjacent display zones A may have a boundary line. When the plan view of display zone 10 is square, the area enclosed by the boundary line can be circular; when the plan view of display zone 10 is rectangular, the shape of the area enclosed by the boundary line can be elliptical, and the major axis of the ellipse can be parallel to the direction of the long side of the plan view of display zone 10.

[0125] When the number of display partitions A is greater than or equal to three, there can be multiple boundary lines between the multiple display partitions A, and none of the multiple boundary lines are tangent to the outer boundary of the display area 10. The area enclosed by the multiple boundary lines can be multiple circles or multiple ellipses, where the multiple circles can be concentric circles, and the multiple ellipses can also be multiple concentric ellipses.

[0126] In actual display products, there can be multiple display zones, and the range of each display zone A is also different. For a display panel 000 larger than 1, the plan view of the display area 10 of the display panel 000 can be square, and the area enclosed by the boundary line between any two adjacent display zones A is circular. The embodiments of this application use the following two implementation methods as examples to illustrate the range of each display zone A.

[0127] In the first implementation, please refer to Figure 12. The display panel 000 includes five display zones A. The ranges of the five display zones A distributed from the center of the display panel 000 to its perimeter are as follows: a circle with a radius of 2 mm centered on the center of the display panel 000; an annulus with an inner diameter of 2 mm and an outer diameter of 4 mm centered on the center of the display panel 000; an annulus with an inner diameter of 4 mm and an outer diameter of 6 mm centered on the center of the display panel 000; an annulus with an inner diameter of 6 mm and an outer diameter of 8 mm centered on the center of the display panel 000; and the area enclosed by the circle with a radius of 8 mm centered on the center of the display panel 000 and the outer boundary of the display area.

[0128] The second implementation method, please refer to Figure 13, is that the display panel 000 includes four display zones A. The ranges of the four display zones A distributed from the center of the display panel 000 to the periphery of the display panel 000 are as follows: a circle with a radius of 2 mm centered on the center of the display panel 000; an annulus with an inner diameter of 2 mm and an outer diameter of 5 mm centered on the center of the display panel 000; an annulus with an inner diameter of 5 mm and an outer diameter of 8 mm centered on the center of the display panel 000; and the area enclosed by the circle with a radius of 8 mm centered on the center of the display panel 000 and the outer boundary of the display area.

[0129] Please refer to Figure 15. The display panel 000 may include a first electrode layer 301, an organic light-emitting layer 302, a second electrode layer 303, and a pixel definition layer 304.

[0130] The first electrode layer 301 can be located on one side of the driving backplate 100. The first electrode layer 301 can have multiple separately arranged first electrodes. The multiple first electrodes can be electrically connected to the driving backplate 100, so that the driving backplate 100 can apply voltage to the multiple first electrodes, thereby driving the display panel 000 to display the image.

[0131] The pixel definition layer 304 can be located on the side of the first electrode layer 301 away from the driving backplate 100. The pixel definition layer 304 can have multiple pixel openings, which penetrate the pixel definition layer 304 in a direction perpendicular to and away from the driving backplate 100. The multiple pixel openings can correspond one-to-one with multiple first electrodes in the first electrode layer 301, and the orthographic projection of the pixel opening on the driving backplate 100 can be located within the orthographic projection of the corresponding first electrode on the driving backplate 100.

[0132] The organic light-emitting layer 302 may include multiple sub-light-emitting layers stacked together, and adjacent sub-light-emitting layers can be connected in series through a charge generation layer. The organic light-emitting layer 302 can be fabricated using a whole-layer vapor deposition process, that is, the sub-light-emitting layers are connected as a whole layer, and the charge generation layer is also connected as a whole layer. The organic light-emitting layer 302 may be located on the side of the pixel definition layer 304 opposite to the driving backplate 100, and some of the organic light-emitting layers 302 may be located within multiple pixel openings of the pixel definition layer 304. The organic light-emitting layers 302 located within the pixel openings may be in contact with the first electrode.

[0133] The second electrode layer 303 can be located on the side of the organic light-emitting layer 302 away from the driving backplate 100. That is, the organic light-emitting layer 302 can also be in contact with the second electrode layer 303. Thus, the organic light-emitting layer 302 located within the pixel opening can simultaneously be in contact with the first electrode and the second electrode layer 303. The organic light-emitting layer 302 located within a pixel opening, and the first electrode and the second electrode layer 303 in contact with it, can serve as a light-emitting device 300. The first electrode can be an anode, and the second electrode layer 303 can be a cathode. When a corresponding voltage is applied to the first electrode and the second electrode layer 303, an electric field is formed between the first electrode and the second electrode layer 303. The organic light-emitting layer 302 located in the electric field can emit light, thereby allowing the display panel 000 to display the corresponding image.

[0134] It should be noted that the pixel definition layer 304 can also have a partition structure K, which can be located between two adjacent pixel openings. Since the organic light-emitting layer 302 is typically fabricated using a full-layer vapor deposition process, meaning the sub-light-emitting layers are entirely connected and the charge-generating layers are also entirely connected, and due to the good conductivity of the charge-generating layer, during the emission of light from a certain light-emitting device 300, the charge-generating layer in that device 300 may generate a lateral leakage current, causing adjacent light-emitting devices 300 to emit light. Therefore, using the partition structure K can isolate at least a portion of the organic material layers in the organic light-emitting layer 302, such as the charge-generating layer, thereby effectively blocking the lateral leakage current.

[0135] Please refer to Figure 16. The display panel 000 may also have a non-display area 20, which is located around the display area 10.

[0136] The driver backplane 100 may have multiple pads, which may be located in the non-display area 20. These pads may be electrically connected to the driver chip, thereby enabling the driver chip to drive the display panel 000 to display the corresponding image.

[0137] The drive backplane 100 may also have an auxiliary electrode ring 600, which is located within the non-display area 20 and may surround the display area 10. The auxiliary electrode ring 600 may have multiple adapter holes 601, which can be electrically connected to multiple auxiliary electrode lines, allowing the multiple auxiliary electrode lines to transmit cathode signals to the auxiliary electrode ring 600. A portion of the second electrode layer 303 is located within the non-display area 20, and this portion of the second electrode layer 303 within the non-display area 20 can be electrically connected to the auxiliary electrode ring 600, allowing the second electrode layer 303 to access cathode signals through the auxiliary electrode ring 600.

[0138] The second electrode layer 303 is a single-layer film structure, and the cathode signals required by each light-emitting device 300 are provided by the auxiliary electrode ring 600. Because the resistance of the single-layer second electrode layer 303 is high and the transmission path of the cathode signal is long, the attenuation of the cathode signal is more pronounced the farther away from the auxiliary electrode ring 600. This causes the brightness to decrease sequentially from the periphery of the display panel 000 to the center of the display panel 000, easily resulting in uneven light emission.

[0139] Furthermore, as shown in Figure 15, at the partition structure K, the second electrode layer 303 will have unevenness and punctures, which will increase the transmission path of the cathode signal and cause puncture leakage. These factors will increase the transmission loss of the cathode signal in the second electrode layer 303. The attenuation of the cathode signal is more obvious at positions farther away from the auxiliary electrode ring 600, resulting in more severe brightness attenuation along the periphery of the display panel 000 to the center of the display panel 000, which in turn leads to poor brightness uniformity of the display panel 000.

[0140] However, in the above embodiments, for any two different display zones A, the light-gathering ability of the optical structure 400 distributed in the display zone A closer to the center of the display panel 000 can be greater than that of the optical structure 400 distributed in the display zone A further away from the center of the display panel 000. Thus, the brightness increase of the display zone A closer to the center of the display panel 000 is greater, making the brightness of the display zone A closer to the center of the display panel 000 approximately the same as that of the display zone A further away from the center of the display panel 000. This can offset the brightness attenuation caused by cathode signal attenuation, solve the problem of uneven light emission from the display panel 000, and improve the brightness uniformity of the display panel 000.

[0141] Please refer to Figure 17. The display panel 000 may also include: a light filter layer 700, an adhesive layer 800, and a protective cover plate 900.

[0142] The filter layer 700 can be located on the side of the encapsulation layer 200 away from the driving backplate 100, and is used to select the light emitted by the light-emitting device 300, so as to obtain different colors of emitted light.

[0143] The encapsulation layer 200 may include a first inorganic encapsulation layer 201, an organic encapsulation layer 202, and a second inorganic encapsulation layer 203 stacked along a direction away from the driving backplate 100. The filter layer 700 may be located on the side of the second inorganic encapsulation layer 203 facing away from the driving backplate 100. The first inorganic encapsulation layer 201 and the second inorganic encapsulation layer 203 can prevent water and oxygen from the external environment from causing the organic light-emitting layer 302 to fail, while the organic encapsulation layer 202 can, to some extent, flatten the film layer and also has a certain buffering effect on the stress generated during bending or folding of the display panel 000.

[0144] Multiple optical structures 400 can be located on the side of the filter layer 700 away from the drive backplate 100, and the multiple optical structures 400 can converge different colors of light emitted after being selected by the filter layer 700.

[0145] The adhesive layer 800 can be located on the side of the multiple optical structures 400 away from the drive backplate 100, and the protective cover 900 can be located on the side of the adhesive layer 800 away from the drive backplate 100. In this way, the adhesive layer 800 can bond the protective cover 900 to the multiple optical structures 400, so that the protective cover 900 can encapsulate and protect the multiple optical structures 400.

[0146] It should be noted that the refractive index of the optical structure 400 can be greater than that of the adhesive layer 800. Therefore, the light emitted from the filter layer 700 can be deflected towards the arch height of each optical structure 400 after passing through the optical structure 400. Thus, the optical structure 400 can converge the light and enhance the brightness of the display surface.

[0147] It should also be noted that the display panel 000 may further include a first protective layer 1000 and a second protective layer 2000. The first protective layer 1000 may be located between the encapsulation layer 200 and the light filter layer 700, and the second protective layer 2000 may be located between the light filter layer 700 and the optical structure 400. Both the first protective layer 1000 and the second protective layer 2000 can encapsulate and protect the display panel 000, and can also provide a certain degree of planarization for the film layers.

[0148] In summary, the embodiments of this application provide a display panel in which, for any two different display zones, the light-gathering ability of the optical structure distributed in the display zone closer to the center of the display panel is greater than that of the optical structure distributed in the display zone further away from the center of the display panel. Thus, the brightness increase of the display zone closer to the center of the display panel is greater, making the brightness of the display zone closer to the center of the display panel approximately the same as that of the display zone further away from the center of the display panel. This can offset the brightness attenuation from the periphery to the center of the display panel caused by cathode signal attenuation, thereby solving the problem of uneven light emission in the display panel and improving the brightness uniformity of the display panel.

[0149] This application also provides a display device, which can be any product or component with display function, such as augmented reality (AR) devices, virtual reality (VR) devices, mobile phones, tablets, televisions, monitors, laptops, digital photo frames, navigators, etc.

[0150] The display device may include a driver chip and a display panel. The display panel may be a silicon-based OLED display panel. The display panel may be the display panel 000 described in the above embodiments, and the driver chip may be electrically connected to the display panel 000 to drive the display panel 000 to display an image.

[0151] 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.

[0152] 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.

[0153] 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.

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