Display panel, manufacturing method thereof and display device

Abstract

This disclosure provides a display panel and its manufacturing method, as well as a display device, comprising a display area, including a first display area and a second display area; wherein the light transmittance of the first display area is greater than that of the second display area; the display panel includes a substrate having a plurality of first sub-pixels located within the first display area; the plurality of first sub-pixels include a plurality of first anodes, each first anode including a first transparent conductive layer located on the substrate, a first reflective layer located on the side of the first transparent conductive layer facing away from the substrate, and a second transparent conductive layer located on the side of the first reflective layer facing away from the substrate; wherein the plurality of first anodes includes at least one first type of first anode, and the projected area of ​​the first transparent conductive layer in the first type of first anode on the substrate is greater than the projected area of ​​the first reflective layer in the first type of first anode on the substrate.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display panel, a method for manufacturing the same, and a display device. Background Technology

[0002] With the rapid development of smartphones, there is a growing demand not only for aesthetically pleasing designs but also for a superior visual experience. Major manufacturers have begun increasing screen-to-body ratios, making full-screen displays a new competitive advantage. As full-screen displays evolve, the demand for improved performance and functionality also grows. Under-display cameras, without compromising a high screen-to-body ratio, can deliver a more immersive visual and user experience. Summary of the Invention

[0003] On one hand, this disclosure provides a display panel having a display area, the display area including: a first display area and a second display area; wherein the light transmittance of the first display area is greater than the light transmittance of the second display area; the display panel includes:

[0004] The substrate has a plurality of first sub-pixels located within the first display area;

[0005] The plurality of first sub-pixels includes a plurality of first anodes, each first anode comprising: a first transparent conductive layer located on the substrate, a first reflective layer located on the side of the first transparent conductive layer opposite to the substrate, and a second transparent conductive layer located on the side of the first reflective layer opposite to the substrate; wherein...

[0006] The plurality of first anodes includes at least one first type of first anode, wherein the projected area of ​​the first transparent conductive layer in the first type of first anode on the substrate is greater than the projected area of ​​the first reflective layer in the first type of first anode on the substrate.

[0007] Optionally, in the display panel provided in the embodiments of this disclosure, the orthographic projections of the first reflective layer and the second transparent conductive layer in the first type of first anode on the substrate substantially overlap.

[0008] Optionally, in the display panel provided in the embodiments of this disclosure, the plurality of first anodes further includes a second type of first anode, wherein the orthogonal projection area of ​​the first transparent conductive layer in the second type of first anode on the substrate is greater than the orthogonal projection area of ​​the first reflective layer in the second type of first anode on the substrate;

[0009] The first transparent conductive layer and the first reflective layer in the first type of first anode have a first non-overlapping region, and the first transparent conductive layer and the first reflective layer in the second type of first anode have a second non-overlapping region, wherein the area of ​​the first non-overlapping region is different from the area of ​​the second non-overlapping region.

[0010] Optionally, in the display panel provided in the embodiments of this disclosure, the area of ​​the first non-overlapping area is larger than the area of ​​the second non-overlapping area, and the area of ​​the first reflective layer in the first type of first anode is smaller than the area of ​​the first reflective layer in the second type of first anode.

[0011] Optionally, in the display panel provided in the embodiments of this disclosure, the area of ​​the first non-overlapping area is smaller than the area of ​​the second non-overlapping area, and the area of ​​the first reflective layer in the first type of first anode is larger than the area of ​​the first reflective layer in the second type of first anode.

[0012] Optionally, in the display panel provided in the embodiments of this disclosure, the plurality of first anodes further includes a second type of first anode, wherein the orthogonal projections of the first transparent conductive layer, the first reflective layer and the second transparent conductive layer in the second type of first anode on the substrate substantially overlap.

[0013] Optionally, in the display panel provided in the embodiments of this disclosure, the orthographic projection area of ​​the first transparent conductive layer in the first type of first anode on the substrate is greater than the orthographic projection area of ​​the first transparent conductive layer in the second type of first anode on the substrate, and the orthographic projection area of ​​the first reflective layer in the second type of first anode on the substrate is greater than the orthographic projection area of ​​the first reflective layer in the first type of first anode on the substrate.

[0014] Optionally, in the display panel provided in the embodiments of this disclosure, the first transparent conductive layer of the first anode includes a main body portion and a connecting line connected to the main body portion, and the orthographic projection of the first reflective layer in the first type of first anode on the substrate falls within the orthographic projection range of the main body portion in the first type of first anode on the substrate.

[0015] Optionally, in the display panel provided in the embodiments of this disclosure, the center position of the first reflective layer in the first type of first anode approximately coincides with the center position of the main body.

[0016] Optionally, in the display panel provided in the embodiments of this disclosure, there are multiple first anodes of the first type and multiple first anodes of the second type, and each first anode of the first type and each second anode of the second type are evenly distributed in the first display area.

[0017] Optionally, in the display panel provided in the embodiments of this disclosure, the plurality of first anodes are arranged in an array, with the first type of first anodes and the second type of first anodes alternating in the column direction, or the first type of first anodes and the second type of first anodes alternating in the row direction.

[0018] Optionally, the display panel provided in the embodiments of this disclosure further includes a plurality of second sub-pixels located in the second display area, each second sub-pixel being provided with a second anode, the second anode including a third transparent conductive layer located on the substrate, a second reflective layer located on the side of the third transparent conductive layer away from the substrate, and a fourth transparent conductive layer located on the side of the second reflective layer away from the substrate;

[0019] The orthographic projections of the third transparent conductive layer, the second reflective layer, and the fourth transparent conductive layer on the substrate substantially overlap.

[0020] Optionally, in the display panel provided in the embodiments of this disclosure, the plurality of first sub-pixels have multiple emission colors, and the first type of first anode and the second type of first anode correspond to the first sub-pixels with the same emission color.

[0021] Optionally, the display panel provided in the embodiments of this disclosure further includes a plurality of second sub-pixels located in the second display area, each second sub-pixel having a second anode. The second anode includes a third transparent conductive layer located on the substrate, a second reflective layer located on the side of the third transparent conductive layer facing away from the substrate, and a fourth transparent conductive layer located on the side of the second reflective layer facing away from the substrate. The resolution of the first display area is less than the resolution of the second display area, and the ratio of the area of ​​the second reflective layer in the second anode to the area of ​​the first reflective layer in the first anode is 0.7-1.5.

[0022] Optionally, the display panel provided in the embodiments of this disclosure further includes a plurality of second sub-pixels located in the second display area, each second sub-pixel having a second anode. The second anode includes a third transparent conductive layer located on the substrate, a second reflective layer located on the side of the third transparent conductive layer facing away from the substrate, and a fourth transparent conductive layer located on the side of the second reflective layer facing away from the substrate. The ratio of the resolution of the first display area to the resolution of the second display area is 0.8-1.2, and the size of the second anode is larger than the size of the first anode.

[0023] Optionally, the display panel provided in the embodiments of this disclosure further includes a border area located outside the display area, and the display panel further includes a plurality of first driving circuits electrically connected to each of the first anodes, the plurality of first driving circuits being located within the border area adjacent to the first display area; or,

[0024] The second display area has a transition area adjacent to the first display area, and the plurality of first driving circuits are located in the transition area, or the plurality of first driving circuits are distributed in the second display area.

[0025] Optionally, the display panel provided in the embodiments of this disclosure further includes a transparent trace layer located between the first driving circuit and the first anode, wherein the first driving circuit and the first anode are electrically connected through transparent traces located in the transparent trace layer.

[0026] Optionally, in the display panel provided in the embodiments of this disclosure, the materials of the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer and the fourth transparent conductive layer include at least one of ITO, IZO or IGZO, and the materials of the first reflective layer and the second reflective layer include at least one of Al, Ag, Mo, Ti or TiN.

[0027] Optionally, in the display panel provided in the embodiments of this disclosure, the shape of the first display area is at least one of a circle, an ellipse, a rectangle, or a polygon.

[0028] On the other hand, embodiments of this disclosure also provide a display device, including a photosensitive device and a display panel as described in any of the above claims; wherein the photosensitive device is disposed in a first display area of ​​the display panel.

[0029] On the other hand, this disclosure also provides a method for manufacturing a display panel, including:

[0030] A substrate is provided; wherein the substrate has a display area, the display area including: a first display area and a second display area; the substrate has a plurality of first sub-pixels located within the first display area; wherein the light transmittance of the first display area is greater than the light transmittance of the second display area;

[0031] A plurality of first anodes are formed within a first sub-pixel of the substrate; wherein each first anode includes: a first transparent conductive layer located on the substrate, a first reflective layer located on the side of the first transparent conductive layer opposite to the substrate, and a second transparent conductive layer located on the side of the first reflective layer opposite to the substrate; wherein...

[0032] The plurality of first anodes includes at least one first type of first anode, wherein the projected area of ​​the first transparent conductive layer in the first type of first anode on the substrate is greater than the projected area of ​​the first reflective layer in the first type of first anode on the substrate.

[0033] Optionally, in the fabrication method provided in the embodiments of this disclosure, forming a first type of first anode within the first sub-pixel of the substrate specifically includes:

[0034] A first conductive film is deposited on the substrate; the material of the first conductive film includes at least one of ITO, IZO or IGZO.

[0035] A reflective conductive film is deposited on the side of the first conductive film facing away from the substrate; the reflective conductive film material includes at least one of Al, Ag, Mo, Ti, or TiN;

[0036] A second conductive film is deposited on the side of the reflective conductive film away from the substrate; the material of the second conductive film includes at least one of ITO, IZO or IGZO.

[0037] A first photoresist is coated on the side of the second conductive film away from the substrate, and the first photoresist is exposed and developed to form a first photoresist layer of a first width.

[0038] A wet etching process is used to etch away the second conductive film after removing the first photoresist portion, forming a second transparent conductive layer.

[0039] A dry etching process is used to etch away the reflective conductive film not covered by the second transparent conductive layer to form the first reflective layer;

[0040] The remaining first photoresist layer is peeled off;

[0041] Two photoresists are coated on the side of the second transparent conductive layer away from the substrate, and the second photoresist is exposed and developed to form a second photoresist layer with a second width; the second width is greater than the first width;

[0042] A wet etching process is used to etch away the first conductive film to remove the second photoresist portion, forming a first transparent conductive layer.

[0043] The remaining second photoresist layer is peeled off. Attached Figure Description

[0044] Figure 1 This is a top view of the display panel structure in related technologies;

[0045] Figure 2 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present disclosure;

[0046] Figure 3 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present disclosure;

[0047] Figure 4 This is a schematic diagram of the cross-section of the first anode of the second type;

[0048] Figure 5 This is a schematic cross-sectional view of the first anode of the first type.

[0049] Figure 6 This is a schematic diagram of the cross-section of the first anode of the second type;

[0050] Figure 7 This is a schematic diagram of the cross-section of the third anode;

[0051] Figure 8 A schematic diagram of the first transparent conductive layer in the first display area and the third transparent conductive layer in the second display area;

[0052] Figure 9 This is a theoretical schematic diagram of the first reflective layer within the first display area;

[0053] Figure 10 A schematic diagram showing the actual fabrication of the first reflective layer within the first display area;

[0054] Figure 11 This is a schematic diagram of the cross-section of the transparent trace layer;

[0055] Figure 12 A schematic diagram of simulation results for reducing diffraction, provided by an embodiment of this disclosure;

[0056] Figure 13 A schematic diagram of simulation results for another embodiment of the present disclosure that can reduce diffraction;

[0057] Figure 14 A schematic flowchart illustrating a method for fabricating a second type of first anode provided in an embodiment of this disclosure;

[0058] Figures 15A-15L A cross-sectional schematic diagram of the method for fabricating a second type of first anode provided in this embodiment of the present disclosure after each step. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Furthermore, the embodiments and features in the embodiments of this disclosure can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0060] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms as used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "inner," "outer," "upper," and "lower" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0061] It should be noted that the dimensions and shapes of the figures in the accompanying drawings do not reflect actual proportions and are intended only to illustrate the content of this disclosure. Furthermore, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0062] In related technologies, such as Figure 1 As shown, under-display camera technology typically involves setting up a first display area AA1 and a second display area AA2 within the display area AA. The second display area AA2 occupies the majority of the display area, while the first display area AA1 occupies a smaller portion. The first display area AA1 is where the under-display camera is located. An under-display camera means that the front-facing camera is located below the screen but does not affect the screen's display function. When the front-facing camera is not in use, the screen above the camera can still display images normally. Therefore, from an appearance perspective, an under-display camera will not have any camera hole, truly achieving a full-screen display effect. However, in current under-display camera designs, the pixel circuit of the first display area AA1 is located in the bezel area BB above the first display area AA1. The pixel circuit is connected to the light-emitting device in the first display area AA1 through ITO traces. The first display area AA1 only retains the light-emitting device. However, during photography, the light emitted from the light-emitting device and the light reflected from the glass cover will diffract. According to the principle of coherence of peaks and troughs, the light in some parts will be enhanced. In the under-display camera area, the resulting phenomenon is that the light is particularly strong at certain angles, which is called starburst glare, affecting the photo quality.

[0063] To address the aforementioned technical problems in related technologies, this disclosure provides a display panel, such as... Figure 2 and Figure 3 As shown, the display panel has a display area AA, which includes a first display area AA1 and a second display area AA2; wherein the light transmittance of the first display area AA1 is greater than that of the second display area AA2; the display panel specifically includes:

[0064] The substrate 1 has a plurality of first sub-pixels located within the first display area AA1;

[0065] Multiple first sub-pixels include multiple first anodes (2 and 2'), such as Figure 4 As shown, the first anode (2) includes: a first transparent conductive layer 21 located on the substrate 1, a first reflective layer 22 located on the side of the first transparent conductive layer 21 facing away from the substrate 1, and a second transparent conductive layer 23 located on the side of the first reflective layer 22 facing away from the substrate 1. Figure 5 As shown, the first anode (2') includes: a first transparent conductive layer 21' located on the substrate 1, a first reflective layer 22' located on the side of the first transparent conductive layer 21' away from the substrate 1, and a second transparent conductive layer 23' located on the side of the first reflective layer 22' away from the substrate 1.

[0066] like Figure 2 and Figure 3 As shown, the plurality of first anodes includes at least one first type of first anode 2', such as Figure 5 As shown, the projected area of ​​the first transparent conductive layer 21' in the first anode 2' of the first type on the substrate 1 is greater than the projected area of ​​the first reflective layer 22' in the first anode 2' of the first type on the substrate 1.

[0067] It should be noted that a display area typically contains multiple subpixels, such as red (R) subpixels, green (G) subpixels, and blue (B) subpixels. To address the subpixel lifespan issue, a Pentile subpixel arrangement is used, for example. The Pentile arrangement reduces the number of red (R) and blue (B) subpixels by half. At the same time, to maintain color accuracy when mixing the three primary colors, the area of ​​these two subpixels is increased. Finally, the brightness of these two subpixels is appropriately reduced. The number of red (R) and blue (B) subpixels is approximately half the number of green (G) subpixels.

[0068] like Figure 2 and Figure 3As shown, the first anode may include the first anode of the first sub-pixel 101 (e.g., B), the first anode of the second sub-pixel 102 (e.g., R), and the first anode of the third sub-pixel 103 (e.g., G). The first anodes of the first sub-pixel 101, the second sub-pixel 102, and the third sub-pixel 103 are not completely identical. Furthermore, the first anodes of the first sub-pixel 101 and the first anodes of the second sub-pixel 102 have the same shape but different areas, and the first anodes of the first sub-pixel 101 and the second sub-pixel 102 are different in both shape and area from the first anode of the third sub-pixel 103.

[0069] In under-display camera technology, during image capture, the light emitted from the light-emitting devices within the first display area AA1 diffracts with the light reflected from the cover glass. According to the principle of coherence of peaks and troughs, the light in certain areas is amplified. In the under-display camera area, this results in particularly strong light at certain angles, a phenomenon known as starburst glare, which affects image quality. This light diffraction is due to the consistent light transmittance of the first display area AA1, which leads to the amplification of light from specific directions and angles, resulting in stronger diffracted light and impacting image quality. Therefore, the display panel provided in this embodiment of the present disclosure, by setting at least one first type of first anode 2' in the first display area AA1 (i.e., the position where the camera is placed), and setting the area of ​​the first reflective layer 22' in the first type of first anode 2' to be smaller than the area of ​​the first transparent conductive layer 21', that is, the first type of first anode 2' has a light reflection area and a light transmission area, can set each first anode 2 in the first display area AA1 to have a different structure. Therefore, the light emission form corresponding to the anodes with different structures in the first display area AA1 is different, and the center point and brightness distribution of the light emission are also different. Therefore, the setting of the first type of first anode 2' in the first display area AA1 can disrupt the regularity of the light transmitted in the first display area AA1, making the phenomenon of light enhancement in certain specific directions or points disappear, reducing the brightness of light emission in parts other than the center point, thereby reducing diffraction, improving glare, and improving the quality of taking pictures.

[0070] In specific implementation, each film layer of the first anode 2' is formed by etching. Theoretically, it is possible to form a first reflective layer 22' and a second transparent conductive layer 23' with completely overlapping orthographic projections. However, in some processes, due to different etching rates of the materials in each layer, a structure with incomplete edge overlap may occur. This is a process deviation in a single etching step. Therefore, in the display panel provided in the embodiments of this disclosure, such as... Figure 5 As shown, the first reflective layer 22' and the second transparent conductive layer 23' in the first type of first anode 2' have their orthogonal projections on the substrate 1 approximately overlapping, thereby forming a first type of first anode 2' having a light transmission region and a light reflection region.

[0071] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 6 As shown, the plurality of first anodes also include a second type of first anode 2, wherein the orthogonal projection area of ​​the first transparent conductive layer 21 in the second type of first anode 2 on the substrate 1 is greater than the orthogonal projection area of ​​the first reflective layer 22 in the second type of first anode 2 on the substrate 1.

[0072] like Figure 5 As shown, the first transparent conductive layer 21' and the first reflective layer 22' in the first type of first anode 2' have a first non-overlapping region DD1. In some examples, since the planar shape of the first type of first anode 2' can be different, the corresponding first non-overlapping region DD1 can be an annular shape surrounding the reflective layer 22' of the first type of first anode 2'.

[0073] like Figure 6 As shown, the first transparent conductive layer 21 and the first reflective layer 22 in the second type of first anode 2 have a second non-overlapping region DD2. In some examples, since the planar shape of the second type of first anode 2 can have different shapes, the corresponding second non-overlapping region DD2 can be an annular shape surrounding the reflective layer 22 of the second type of first anode 2. In some examples, the area of ​​the first non-overlapping region DD1 is different from the area of ​​the second non-overlapping region DD2. In some examples, both the first non-overlapping region DD1 and the second non-overlapping region DD2 are annular, and the radial dimension between the inner and outer rings of the annular shape of the first non-overlapping region DD1 is different from the radial dimension between the inner and outer rings of the annular shape of the second non-overlapping region DD2. In some examples, the outline of the first non-overlapping region DD1 can be approximately similar to that of the first type of first anode 2'. In some examples, the outline of the second non-overlapping region DD2 can be approximately similar to that of the second type of first anode 2. This allows for the formation of a shape like... within the first display area AA1. Figure 5 The first type of first anode 2' shown and as Figure 6 The second type of first anode 2 shown has a different structure, which can disrupt the regularity of light transmission in the first display area AA1, eliminating the phenomenon of enhanced light in certain directions or points, reducing the brightness of light emitted outside the center point, thereby reducing diffraction, improving glare, and enhancing image quality. In some examples, the shapes of the first non-overlapping region DD1 and the second non-overlapping region DD2 can be different; for example, one may be a complete ring shape, and the other an incomplete ring shape, resulting in different structures for the first anode. In some examples, the reflective layer 22' in the first type of first anode 2' and the reflective layer 22 in the second type of first anode 2 can have different shapes or areas, resulting in different structures for the first anode.

[0074] In summary, the embodiments disclosed herein include a first type of first anode 2' and a second type of first anode 2 in the first display area AA1, which have different structures. Of course, the first display area AA1 may also include a third type of first anode, a fourth type of first anode, a fifth type of first anode, etc. As long as different first anode structures are designed by changing the shape, size, thickness, etc. of each film layer of each type of first anode, the regularity of light corresponding to the first anode with the same structure in the original first display area AA1 can be broken, thereby achieving the purpose of improving glare. The embodiments disclosed herein will not elaborate on more types of first anode structures.

[0075] Optionally, in embodiments of this disclosure, two types of first anodes 2' and second type of first anodes 2, each with different structures and both having reflective and transmissive properties, can be fabricated in the first display area AA1, such as... Figure 5 and Figure 6 As shown, if the area of ​​the first non-overlapping region DD1 is larger than the area of ​​the second non-overlapping region DD2, then the luminous intensity of the sub-pixel corresponding to the first non-overlapping region DD1 must be greater than the luminous intensity of the sub-pixel corresponding to the second non-overlapping region DD2. To ensure uniform luminous brightness within the first display area AA1, then... Figure 5 The area of ​​the first reflective layer 22' in the first anode 2' of the first type shown should be made smaller than that of the first reflective layer 22' of the first type shown. Figure 6 The area of ​​the first reflective layer 22 in the second type of first anode 2 is shown. This ensures that the brightness of the first display area AA1 is uniform.

[0076] Optionally, if the area of ​​the first non-overlapping region can be smaller than the area of ​​the second non-overlapping region, then in order to ensure uniform luminous intensity within the first display area AA1, the area of ​​the first reflective layer in the first type of first anode must be made larger than the area of ​​the first reflective layer in the second type of first anode. In some examples, for instance, the two can have the same shape but different areas. Figure 5 This is the structure of the first anode of the second type. Figure 6 This is the structure of the first anode of the second type.

[0077] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 2 , Figure 3 and Figure 4 As shown, the multiple first anodes also include a second type of first anode 2. Each film layer of the second type of first anode 2 is formed by etching. Theoretically, it forms a first transparent conductive layer 21, a first reflective layer 22, and a second transparent conductive layer 23 with completely overlapping orthographic projections. However, in some processes, due to the different etching rates of the materials in each layer, there may be a structure where the edges do not completely overlap. But this is a process deviation of a single etching step. Therefore, the orthographic projections of the first transparent conductive layer 21, the first reflective layer 22, and the second transparent conductive layer 23 in the second type of first anode 2 on the substrate 1 are approximately overlapping.

[0078] Therefore, the first display area AA1 of the display panel provided in the embodiments of this disclosure can be formed simultaneously. Figure 4 The second type of first anode 2 and shown Figure 5 The first type of first anode 2' shown, or formed simultaneously Figure 5 The first type of first anode 2' and shown Figure 6 The second type of first anode 2 shown is used to break the regularity of light transmission in the first display area AA1, so that the phenomenon of light enhancement in certain directions or points disappears, and the brightness of light emission in parts other than the center point is reduced, thereby reducing diffraction, improving glare, and improving the quality of photography.

[0079] In practical implementation, if the first display area AA1 is simultaneously formed Figure 4 The second type of first anode 2 and shown Figure 5 The first type of first anode 2' shown, due to Figure 5 The first type of first anode 2' shown has a reflected light area and a transmitted light area. If the first transparent conductive layer 21' and the first transparent conductive layer 21 have the same size, then the size of the first reflective layer 22' must be smaller than the size of the first reflective layer 22. Therefore, the luminous intensity of the corresponding areas of the first type of first anode 2' and the second type of first anode 2 will be different. If the size of the first reflective layer 22' and the first reflective layer 22 are kept the same, then the size of the first transparent conductive layer 21' must be larger than the size of the first transparent conductive layer 21. Therefore, the luminous intensity of the corresponding areas of the first type of first anode 2' and the second type of first anode 2 will also be different. To ensure uniform luminous brightness in the first display area AA1, in the display panel provided in the embodiments of this disclosure, such as... Figure 4 and Figure 5As shown, the projected area of ​​the first transparent conductive layer 21' in the first type of first anode 2' on the substrate 1 is larger than that of the first transparent conductive layer 21 in the second type of first anode 2 on the substrate 1, and the projected area of ​​the first reflective layer 22 in the second type of first anode 2 on the substrate 1 is larger than that of the first reflective layer 22' in the first type of first anode 2' on the substrate 1. For example, if the luminous intensity of the region corresponding to the second type of first anode 2 is S1, the luminous intensity of the region corresponding to the first reflective layer 22' of the first type of first anode 2' is S2, and the luminous intensity of the region in the first transparent conductive layer 21' that does not overlap with the first reflective layer 22' (i.e., the region transmitting light) is S3, then S3 = S1 - S2. Therefore, by adjusting the size of the region in the first transparent conductive layer 21' that does not overlap with the first reflective layer 22', S3 = S1 - S2 can be achieved. Thus, this disclosure can achieve uniform luminous brightness of the first display area AA1 while reducing diffraction, improving the image quality without affecting the display quality. In some examples, the ratio of S3 to (S1-S2) can be in the range of 0.7-1.5, and even if the brightness is slightly different, it is not easily perceived by the human eye.

[0080] In practical implementation, if the first display area AA1 is simultaneously formed Figure 5 The first type of first anode 2' and shown Figure 6 The second type of first anode 2 shown, for example, Figure 6 The luminous intensity of the region corresponding to the first reflective layer 22 of the second type of first anode 2 is S2', and the luminous intensity of the region in the first transparent conductive layer 21 that does not overlap with the first reflective layer 22 (i.e., the region that transmits light) is S3'. Figure 5 The luminous intensity of the region corresponding to the first reflective layer 22' in the first type of first anode 2' is S2, and the luminous intensity of the region in the first transparent conductive layer 21' that does not overlap with the first reflective layer 22' (i.e., the region transmitting light) is S3. To ensure uniform luminous brightness in the first display area AA1, S2' + S3' = S2 + S3. Therefore, by adjusting the dimensions of the first reflective layer and the first transparent conductive layer corresponding to the first type of first anode 2' and the second type of first anode 2, S2' + S3' = S2 + S3 is achieved. Thus, this disclosure can achieve uniform luminous brightness in the first display area AA1 while reducing diffraction, improving image quality without affecting display quality. In some examples, the ratio of (S2' + S3') to (S2 + S3) can be in the range of 0.7-1.5, and even if the brightness is slightly different, it is not easily perceived by the human eye.

[0081] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 2 and Figure 3As shown, it also includes multiple second sub-pixels located within the second display area AA2, each second sub-pixel having a second anode 3; as Figure 7 As shown, the second anode 3 includes a third transparent conductive layer 31 located on the substrate 1, a second reflective layer 32 located on the side of the third transparent conductive layer 31 facing away from the substrate 1, and a fourth transparent conductive layer 33 located on the side of the second reflective layer 32 facing away from the substrate 1.

[0082] Each film layer of the second anode 3 is formed by etching. Theoretically, the third transparent conductive layer 31, the second reflective layer 32, and the fourth transparent conductive layer 33 are formed with completely overlapping orthographic projections. However, in some processes, due to the different etching rates of each layer, the edges may not completely overlap. But this is a process deviation of one etching step. Therefore, the orthographic projections of the third transparent conductive layer 31, the second reflective layer 32, and the fourth transparent conductive layer 33 on the substrate 1 are roughly overlapping.

[0083] Specifically, the third transparent conductive layer 31 and the first transparent conductive layer (21 and 21') are disposed in the same layer, the second reflective layer 32 and the first reflective layer (22 and 22'), and the fourth transparent conductive layer 33 and the second transparent conductive layer (23 and 23') are disposed in the same layer.

[0084] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 8 As shown, Figure 8 This is a schematic diagram of a portion of the first transparent conductive layer (21 and 21') in the first display area AA1 and a portion of the third transparent conductive layer 31 in the second display area AA2. Figure 8 Indicate Figure 2 and Figure 3 The first transparent conductive layer corresponding to the first sub-pixel 101 (e.g., B), the first transparent conductive layer corresponding to the second sub-pixel 102 (e.g., R), and the first transparent conductive layer corresponding to the third sub-pixel 103 (e.g., G). The first transparent conductive layer (21 and 21') of the first anode (2 and 2') includes a main body 201 and a connecting line 202 connected to the main body 201, and a first reflective layer 22' in the first anode 2' of the first type. Figure 8 (Not shown) The orthographic projection of the first reflective layer 22' onto the substrate 1 falls within the orthographic projection area of ​​the main body portion 201 of the first type of first anode 2' onto the substrate 1, that is, the orthographic projection area of ​​the first reflective layer 22' onto the substrate 1 is smaller than the orthographic projection area of ​​the main body portion 201 onto the substrate 1. Since the first type of first anode 2' is formed by an etching process, this allows the central region of the first type of first anode 2' to reflect light and the surrounding region to transmit light, facilitating the implementation of the etching process.

[0085] Specifically, the display panel includes a driving circuit located on a substrate and a light-emitting device located on the side of the driving circuit away from the substrate. A planarization layer is generally disposed between the driving circuit and the light-emitting device. The driving circuit includes a thin-film transistor, which includes, for example, an active layer, a gate, and a source and a drain. The light-emitting device includes an anode, a light-emitting layer, and a cathode stacked in sequence. The planarization layer includes a via V, such as the first display area AA1. The first transparent conductive layers (21 and 21') of the first anode of each light-emitting device are electrically connected to the drain of the driving circuit through the via V. The via V is filled with a first transparent conductive layer material to achieve corresponding electrical connection between the first transparent conductive layers (21 and 21') and the drain.

[0086] Preferably, in the display panel provided in the embodiments of this disclosure, such as Figure 8 As shown, the first reflective layer 22' in the first anode 2' of the first type ( Figure 8 The center position of the first reflective layer 22' (not shown) roughly coincides with the center position of the main body 201. This is because the etching rates of each layer are different, and there may also be a structure where the edges do not completely overlap, but this is a process deviation of a single etching step. Since the first reflective layer 22' and the second transparent conductive layer 23' are formed by etching, the center position of the first reflective layer 22' in the second type of first anode 2' roughly coincides with the center position of the first transparent conductive layer 21' in the second type of first anode 2', which is beneficial to the implementation of the etching process.

[0087] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 9 As shown, Figure 9 This is a theoretical top view of the first reflective layer (22 and 22') within the first display area AA1. The material of the reflective layer is a metallic material, such as Ag, but not limited to it. Figure 8 For the connection line 202 and the location of the connection via V, there is only the material of the first transparent conductive layer (21 and 21'), that is, the first reflective layer (22 and 22') corresponds to the first main body 201, and there is no Ag or a small amount of residual Ag in the via V.

[0088] like Figure 10 As shown, Figure 10This is a schematic diagram illustrating the actual fabrication effect of the first reflective layer (22 and 22') within the first display area AA1. It includes a schematic diagram of the first reflective layer (e.g., 22) corresponding to the red (R) first sub-pixel, the green (G) first sub-pixel, and the blue (B) first sub-pixel. Below the first reflective layer 22 is a first transparent conductive layer (not shown). The first transparent conductive layer has a main body portion similar in shape to the first reflective layer 22, and a connecting line to the main body portion. The end of the connecting line away from the main body portion corresponds to a via V in the planarization layer. Since the pixel arrangement in this embodiment uses the RBGG method, the distance of the via V corresponding to two adjacent G pixels from the first reflective layer 22 is different. Figure 10 The distance between the upper via and the upper first reflective layer 22 shown in the dashed box is greater than the distance between the lower via and the lower first reflective layer 22. This makes the structures of the first anodes (2 and 2') in the first display area AA1 different, thereby further disrupting the original regularity of light transmission in the first display area AA1, making the phenomenon of light enhancement in certain directions or points disappear, reducing the brightness of light emitted outside the center point, thereby reducing diffraction, improving glare, and improving the quality of photography.

[0089] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 2 and Figure 3 As shown, there can be multiple first anodes 2' of the first type and multiple first anodes 2 of the second type. For ease of manufacturing, each first anode 2' and each second anode 2 can be evenly distributed within the first display area AA1. Of course, the first anodes 2' and each second anode 2 can also be randomly distributed within the first display area AA1. Both methods can disrupt the original regularity of light transmission in the first display area AA1, eliminating the phenomenon of enhanced light in certain directions or points, reducing the brightness of light emitted outside the center point, thereby reducing diffraction, improving glare, and enhancing image quality.

[0090] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 2 and Figure 3 As shown, multiple first anodes (2 and 2') within the first display area AA1 are arranged in an array, as follows: Figure 2 As shown, the first type of first anode 2' and the second type of first anode 2 are arranged alternately in the column direction, or as shown in the figure. Figure 3 As shown, the first anode 2' of the first type and the first anode 2 of the second type are arranged alternately in the row direction.

[0091] It should be noted that the embodiments provided in this disclosure... Figure 2The first type of first anode 2' and the second type of first anode 2 shown are arranged with one row between them, but they can also be arranged with two or more rows between them. The embodiments provided in this disclosure... Figure 3 The first type of first anode 2' and the second type of first anode 2 shown are arranged with one column between them, but they can also be arranged with two or more columns between them.

[0092] It should be noted that the closest distance between the first type of first anode 2' and the second type of first anode 2 provided in this embodiment is the width of a row of sub-pixels or the width of a column of sub-pixels. This closest distance needs to be selected according to the actual size of the sub-pixels.

[0093] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 2 and Figure 3 As shown, the emission colors of the multiple first sub-pixels can be varied, for example, including first sub-pixels with three emission colors. In this embodiment of the disclosure, a first sub-pixel with red (R), a first sub-pixel with green (G), and a first sub-pixel with blue (B) is used as an example, but it is not limited to this. The first type of first anode 2' and the second type of first anode 2 correspond to the first sub-pixels with the same emission color. For example, the first display area AA1 includes a red (R) first sub-pixel, a green (G) first sub-pixel, and a blue (B) first sub-pixel. The first type of first anode 2' and the second type of first anode 2 can be set in the red (R) first sub-pixel, or the first type of first anode 2' and the second type of first anode 2 can be set in the green (G) first sub-pixel, or the first type of first anode 2' and the second type of first anode 2 can be set in the blue (B) first sub-pixel.

[0094] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 3 As shown, it also includes multiple second sub-pixels located within the second display area AA2, each second sub-pixel having a second anode 3; as Figure 7 As shown, the second anode 3 includes a third transparent conductive layer 31 located on the substrate 1, a second reflective layer 32 located on the side of the third transparent conductive layer 31 facing away from the substrate 1, and a fourth transparent conductive layer 33 located on the side of the second reflective layer 32 facing away from the substrate 1; as Figure 3 and Figure 7 As shown, the resolution of the first display area AA1 is less than that of the second display area AA2, and the ratio of the area of ​​the second reflective layer 32 in the second anode 3 to the area of ​​the first reflective layer 21 in the first anode 2 can be 0.7-1.5. This allows the transmittance of the first display area A1 to be greater than that of the second display area AA2, thus enabling under-display camera technology.

[0095] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 2As shown, it also includes multiple second sub-pixels located within the second display area AA2, each second sub-pixel having a second anode 3; as Figure 7 As shown, the second anode 3 includes a third transparent conductive layer 31 located on the substrate 1, a second reflective layer 32 located on the side of the third transparent conductive layer 31 facing away from the substrate 1, and a fourth transparent conductive layer 33 located on the side of the second reflective layer 32 facing away from the substrate 1; as Figure 2 and Figure 7 As shown, the resolution ratio of the first display area AA1 to the second display area AA2 can be 0.8-1.2. The size of the second anode 3 is larger than the size of the first anode 2, thereby achieving a higher transmittance of the first display area A1 than the second display area AA2, thus realizing under-display camera technology. Figure 2 The structure shown can achieve the same pixel resolution as the second display area AA2 in the under-display camera display area (i.e., the first display area AA1), improve the brightness of the under-display camera display area, and reduce the brightness difference between the main display area (i.e., the second display area AA2) and the under-display camera display area (i.e., the first display area AA1).

[0096] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 2 and Figure 3 As shown, the display panel also includes a bezel area BB located outside the display area AA. The display panel further includes multiple first driving circuits (not shown) electrically connected to each of the first anodes (2 and 2'). These multiple first driving circuits are located within the bezel area BB adjacent to the first display area AA1. This improves the light transmittance of the first display area AA1, allowing it to be used as a camera placement area, which is beneficial for achieving a full-screen display. Alternatively, the second display area AA2 has a transition area CC adjacent to the first display area AA1, with the multiple first driving circuits located within the transition area CC, or the multiple first driving circuits are distributed within the second display area AA2.

[0097] In specific implementation, since the first driving circuit is electrically connected to the light-emitting device in the first display area AA1 through a transparent trace, this disclosure can effectively reduce the length of the transparent trace between the first driving circuit and the light-emitting device in the first display area AA1 by setting multiple first driving circuits in the border area BB adjacent to the first display area AA1 or in the transition area CC adjacent to the first display area AA1, thereby reducing the resistance of the transparent trace and improving the long-range uniformity of the driving signal.

[0098] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figure 11As shown, it also includes a transparent trace layer 5 located between the first driving circuit 4 and the first anode (2 and 2'), and the first driving circuit 4 and the first anode (2 and 2') are electrically connected through transparent traces located in the transparent trace layer 5.

[0099] Specifically, the transparent trace layer can be multi-layered, with each layer being insulated, and each transparent trace layer includes multiple transparent traces.

[0100] Optionally, in the display panel provided in the embodiments of this disclosure, the multiple transparent traces contained in each transparent trace layer do not overlap, and the orthographic projections of the multiple transparent traces contained in different transparent trace layers on the substrate do not overlap. Of course, since different transparent trace layers are mutually insulated, in specific implementations, the orthographic projections of the multiple transparent traces contained in different transparent trace layers on the substrate may partially overlap or completely coincide, which is not limited here.

[0101] Optionally, in the display panel provided in the embodiments of this disclosure, the material of the transparent wiring layer can be ITO.

[0102] In specific implementation, in the display panel provided in the embodiments of this disclosure, such as Figures 4-7 As shown, the materials of the first transparent conductive layer (21 and 21'), the second transparent conductive layer (23 and 23'), the third transparent conductive layer 31 and the fourth transparent conductive layer 34 may include, but are not limited to, at least one of ITO, IZO or IGZO, and the materials of the first reflective layer (22 and 22') and the second reflective layer 32 may include, but are not limited to, at least one of Al, Ag, Mo, Ti or TiN.

[0103] It should be noted that, in this disclosure, the shape of the first display area AA1 can be... Figure 2 and Figure 3 The rectangle shown can also be a circle, ellipse, polygon, or other shapes; the specific design can be tailored to actual needs and is not limited here. The second display area AA2 can be as follows... Figure 2 and Figure 3 The area shown is the periphery of the first display area AA1; it can also surround part of the first display area AA1, for example, the left, lower and right sides of the first display area AA1, while the upper boundary of the first display area AA1 coincides with the upper boundary of the second display area AA2.

[0104] Optionally, in the display panel provided in the embodiments of this disclosure, such as Figure 2 and Figure 3 As shown, the first display area AA1 is configured to mount a photosensitive device, such as a camera module. Since only light-emitting devices exist in the first display area AA1 in this disclosure, a larger light-transmitting area can be provided, which helps to accommodate larger-sized camera modules.

[0105] It should be noted that the first display area AA1 in this embodiment is not limited to installing a camera module, but can also include a fingerprint recognition module. Figure 2 and Figure 3 The illustration uses an example where the first display area AA1 is located at the top of the display panel. The first display area AA1, located at the top of the display panel, is generally used to mount a camera module. Fingerprint recognition generally includes finger fingerprint recognition and facial recognition. When using finger fingerprint recognition, the first display area AA1 occupies a small portion of the display area AA and is located at the bottom of the display panel. When using facial recognition, the entire display area AA can be equipped with a fingerprint recognition module. Thus, the entire display area AA includes a first type of first anode 2' and a second type of first anode 2. That is, the entire display area AA adopts the anode structure of the first display area AA1 described above in the embodiments of this disclosure, which will not be repeated here.

[0106] The following describes the prior art and embodiments of the present invention. Figure 2 and Figure 3 The simulation results shown illustrate how the display panel can enhance the anti-glare effect:

[0107] like Figure 2 and Figure 3 As shown, select Figure 2 and Figure 3 The central energy peak corresponding to the emission of the sub-pixel corresponding to the first anode (2 and 2') in the central region of the first display area AA1, such as... Figure 12 As shown, Figure 12 The first bar from the left represents the peak energy of the light emitted from the central region of the first display area in the prior art (represented by D). The second bar from the left represents... Figure 2 The peak energy of the light emitted from the central region within the first display area AA1 (represented by E), the third bar from the left is... Figure 3 The peak energy of the light emitted from the central region within the first display area AA1 (represented by F) shows that... Figure 2 and Figure 3 The corresponding central energy peak is greater than the central energy peak measured by the prior art. Therefore, the technical solution of this disclosure embodiment can reduce the luminescence intensity of the periphery of the central region, thereby reducing diffraction and improving the image quality.

[0108] This disclosure embodiment simulates and tests the ingress diffraction energy of sub-pixels emitting light within the range of 0-40µm in the first display area AA1 of the display panel provided in the prior art and this disclosure embodiment, such as... Figure 13 As shown, curve A represents the simulation structure of the prior art, and curve B is... Figure 2 The simulation results shown show that curve C is... Figure 3 The simulation results shown indicate that, Figure 2 and Figure 3 The simulation results (ingress diffraction energy) shown are almost identical and are all greater than the ingress diffraction energy of the prior art. Therefore, it is further verified that the technical solution of the present disclosure embodiment can reduce the luminescence intensity of the periphery of the central region, thereby reducing diffraction and improving the image quality.

[0109] Based on the same inventive concept, this disclosure also provides a method for manufacturing a display panel, including:

[0110] A substrate is provided; wherein the substrate has a display area, the display area including: a first display area and a second display area; the substrate has a plurality of first sub-pixels located within the first display area; wherein the light transmittance of the first display area is greater than the light transmittance of the second display area;

[0111] Multiple first anodes are formed within a first sub-pixel of the substrate; wherein each first anode includes: a first transparent conductive layer located on the substrate, a first reflective layer located on the side of the first transparent conductive layer opposite to the substrate, and a second transparent conductive layer located on the side of the first reflective layer opposite to the substrate; wherein...

[0112] The plurality of first anodes includes at least one first type of first anode, wherein the projected area of ​​the first transparent conductive layer in the first type of first anode on the substrate is greater than the projected area of ​​the first reflective layer in the first type of first anode on the substrate.

[0113] The method for manufacturing the display panel provided in this embodiment of the present disclosure involves fabricating at least one first type of first anode in the first display area (i.e., the location where the camera is placed), and setting the area of ​​the first reflective layer in the first type of first anode to be smaller than the area of ​​the first transparent conductive layer. That is, the first type of first anode has a reflective light area and a transmittance light area. In this way, each first anode in the first display area can be set with a different structure. Therefore, the light emission form, the center point of light emission, and the brightness distribution of anodes with different structures in the first display area are different. Thus, the setting of the first type of first anode in the first display area can disrupt the regularity of light transmitted in the first display area, making the phenomenon of light enhancement in certain specific directions or points disappear, reducing the brightness of light emission in parts other than the center point, thereby reducing diffraction, improving glare, and improving the quality of photography.

[0114] In a specific implementation, in the manufacturing method provided in the embodiments of this disclosure, a first type of first anode is formed within the first sub-pixel of the substrate, such as... Figure 14 As shown, it can specifically include:

[0115] S1401. Deposit a first conductive film on a substrate; the material of the first conductive film includes at least one of ITO, IZO or IGZO.

[0116] Specifically, such as Figure 15A As shown, a first conductive thin film 20 is deposited on substrate 1.

[0117] S1402, Deposit a reflective conductive film on the side of the first conductive film away from the substrate; the reflective conductive film material includes at least one of Al, Ag, Mo, Ti or TiN;

[0118] Specifically, such as Figure 15B As shown, a reflective conductive film 30 is deposited on the side of the first conductive film 20 away from the substrate 1.

[0119] S1403. Deposit a second conductive film on the side of the reflective conductive film away from the substrate; the material of the second conductive film includes at least one of ITO, IZO or IGZO.

[0120] Specifically, such as Figure 15C As shown, a second conductive film 40 is deposited on the side of the reflective conductive film 30 away from the substrate 1.

[0121] S1404. Coat the first photoresist on the side of the second conductive film away from the substrate, and expose and develop the first photoresist to form a first photoresist layer of the first width.

[0122] Specifically, such as Figure 15D As shown, a first photoresist 50 is coated on the side of the second conductive film 40 facing away from the substrate 1; as Figure 15E As shown, the first photoresist 50 is exposed and developed to form a first photoresist layer 50 with a first width.

[0123] S1405. The second conductive film, which has been partially removed from the first photoresist, is etched away using a wet etching process to form a second transparent conductive layer.

[0124] Specifically, such as Figure 15F As shown, a wet etching process is used to etch away the second conductive film 40, which removes part of the first photoresist 50, to form a second transparent conductive layer 23'.

[0125] S1406. A dry etching process is used to etch away the reflective conductive film not covered by the second transparent conductive layer to form a first reflective layer.

[0126] Specifically, such as Figure 15G As shown, a dry etching process is used to etch away the reflective conductive film 30 that is not covered by the second transparent conductive layer 23' to form the first reflective layer 22'.

[0127] S1407, Remove the remaining first photoresist;

[0128] Specifically, such as Figure 15H As shown, the remaining first photoresist 50 is peeled off;

[0129] S1408, A second photoresist is coated on the side of the second transparent conductive layer away from the substrate, and the second photoresist is exposed and developed to form a second photoresist layer with a second width; the second width is greater than the first width;

[0130] Specifically, such as Figure 15I As shown, a second photoresist 60 is coated on the side of the second transparent conductive layer 23' facing away from the substrate 1; as Figure 15J As shown, the second photoresist 60 is exposed and developed to form a second photoresist layer 60 with a second width;

[0131] S1409. The first conductive film with the second photoresist portion removed is etched away using a wet etching process to form a first transparent conductive layer.

[0132] Specifically, such as Figure 15K As shown, a wet etching process is used to etch away the first conductive film 20, which removes part of the second photoresist 60, to form a first transparent conductive layer 21';

[0133] S1410, peel off the remaining second photoresist layer;

[0134] Specifically, such as Figure 15L As shown, the remaining second photoresist layer 60 is stripped to form a first type of first anode 2' within the first sub-pixel of the substrate 1.

[0135] It should be noted that the above-described method for manufacturing a display panel provided in this disclosure only describes the method for manufacturing the first anode 2' of the first type. The methods for manufacturing other film structures in the display panel are the same as those in related technologies and will not be described in detail here.

[0136] Based on the same inventive concept, this disclosure also provides a display device, including a photosensitive device (e.g., a camera module) and the aforementioned display panel; wherein the photosensitive device is disposed in a first display area of ​​the display panel. Optionally, the photosensitive device may be a camera module.

[0137] 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, navigator, smartwatch, fitness wristband, or personal digital assistant. Other essential components of the display device are readily understood by those skilled in the art and will not be described in detail here, nor should they be construed as limiting the invention. Furthermore, since the principle by which this display device solves the problem is similar to that of the display panel described above, the implementation of this display device can refer to the embodiments of the display panel described above, and repeated details will not be elaborated upon.

[0138] This disclosure provides a display panel and its manufacturing method and display device. By setting at least one first type of first anode in a first display area (i.e., the location where the camera is placed), and setting the area of ​​the first reflective layer in the first type of first anode to be smaller than the area of ​​the first transparent conductive layer, that is, the first type of first anode has a light-reflecting area and a light-transmitting area, the first anodes in the first display area can be set with different structures. Therefore, the light emission forms, center points and brightness distributions of the light emission formations corresponding to the anodes with different structures in the first display area are also different. Thus, the setting of the first type of first anode in the first display area can disrupt the regularity of the light transmitted in the first display area, making the phenomenon of light enhancement in certain specific directions or points disappear, reducing the light emission brightness in parts other than the center point, thereby reducing diffraction, improving glare, and improving the image quality.

[0139] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0140] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this disclosure without departing from the spirit and scope of the embodiments of this disclosure. Therefore, if these modifications and variations to the embodiments of this disclosure fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include these modifications and variations.

Claims

1. A display panel, wherein, The display panel includes a display area, comprising: a first display area and a second display area; wherein the light transmittance of the first display area is greater than that of the second display area; the display panel includes: The substrate has a plurality of first sub-pixels located within the first display area; The plurality of first sub-pixels includes a plurality of first anodes, each first anode comprising: a first transparent conductive layer located on the substrate, a first reflective layer located on the side of the first transparent conductive layer opposite to the substrate, and a second transparent conductive layer located on the side of the first reflective layer opposite to the substrate; wherein... The plurality of first anodes includes at least one first type of first anode, wherein the orthographic projection area of ​​the first transparent conductive layer in the first type of first anode on the substrate is greater than the orthographic projection area of ​​the first reflective layer in the first type of first anode on the substrate; The first sub-pixel further includes: a driving circuit located between the substrate and the first anode, and a planarization layer located between the driving circuit and the first anode; the planarization layer includes a plurality of vias corresponding to each of the first transparent conductive layers, and the first transparent conductive layers are electrically connected to the driving circuit through the vias; The plurality of first sub-pixels includes a plurality of first red sub-pixels, a plurality of first green sub-pixels and a plurality of first blue sub-pixels. One first red sub-pixel, one first blue sub-pixel and two first green sub-pixels constitute a pixel unit. Two first green sub-pixels are arranged adjacent to each other. The first transparent conductive layer of the first anode includes a main body and a connecting line connected to the main body. The orthographic projection of the first reflective layer in the first type of first anode on the substrate falls within the orthographic projection range of the main body in the first type of first anode on the substrate. The end of the connecting line away from the main body corresponds to the via, and the distance between the via corresponding to two adjacent first green sub-pixels and their respective first reflective layers is different.

2. The display panel as claimed in claim 1, wherein, The orthogonal projections of the first reflective layer and the second transparent conductive layer in the first anode of the first type approximately overlap on the substrate.

3. The display panel as claimed in claim 1, wherein, The plurality of first anodes also includes a second type of first anode, wherein the projected area of ​​the first transparent conductive layer in the second type of first anode on the substrate is greater than the projected area of ​​the first reflective layer in the second type of first anode on the substrate; The first transparent conductive layer and the first reflective layer in the first type of first anode have a first non-overlapping region, and the first transparent conductive layer and the first reflective layer in the second type of first anode have a second non-overlapping region, wherein the area of ​​the first non-overlapping region is different from the area of ​​the second non-overlapping region.

4. The display panel as claimed in claim 3, wherein, The area of ​​the first non-overlapping region is greater than the area of ​​the second non-overlapping region, and the area of ​​the first reflective layer in the first type of first anode is less than the area of ​​the first reflective layer in the second type of first anode.

5. The display panel as claimed in claim 3, wherein, The area of ​​the first non-overlapping region is smaller than the area of ​​the second non-overlapping region, and the area of ​​the first reflective layer in the first type of first anode is larger than the area of ​​the first reflective layer in the second type of first anode.

6. The display panel as claimed in claim 1, wherein, The plurality of first anodes also includes a second type of first anode, wherein the orthogonal projections of the first transparent conductive layer, the first reflective layer and the second transparent conductive layer in the second type of first anode on the substrate substantially overlap.

7. The display panel as claimed in claim 6, wherein, The projected area of ​​the first transparent conductive layer in the first anode of the first type on the substrate is greater than the projected area of ​​the first transparent conductive layer in the second anode of the first type on the substrate, and the projected area of ​​the first reflective layer in the second anode of the first type on the substrate is greater than the projected area of ​​the first reflective layer in the first anode of the first type on the substrate.

8. The display panel as claimed in claim 1, wherein, The center position of the first reflective layer in the first anode of the first type roughly coincides with the center position of the main body.

9. The display panel according to any one of claims 3-7, wherein, There are multiple first anodes of the first type and multiple first anodes of the second type, and each first anode of the first type and each second anode of the second type are evenly distributed in the first display area.

10. The display panel as claimed in claim 9, wherein, The plurality of first anodes are arranged in an array, with the first type of first anode and the second type of first anode alternating in the column direction or alternating in the row direction.

11. The display panel according to any one of claims 3-7, wherein, It also includes a plurality of second sub-pixels located in the second display area, each second sub-pixel being provided with a second anode, the second anode including a third transparent conductive layer located on the substrate, a second reflective layer located on the side of the third transparent conductive layer away from the substrate, and a fourth transparent conductive layer located on the side of the second reflective layer away from the substrate; The orthographic projections of the third transparent conductive layer, the second reflective layer, and the fourth transparent conductive layer on the substrate substantially overlap.

12. The display panel according to any one of claims 3-7, wherein, The plurality of first sub-pixels have multiple emission colors, and the first type of first anode and the second type of first anode correspond to the first sub-pixels with the same emission color.

13. The display panel as claimed in claim 1, wherein, It also includes a plurality of second sub-pixels located within the second display area, each second sub-pixel having a second anode. The second anode includes a third transparent conductive layer located on the substrate, a second reflective layer located on the side of the third transparent conductive layer facing away from the substrate, and a fourth transparent conductive layer located on the side of the second reflective layer facing away from the substrate. The resolution of the first display area is less than the resolution of the second display area, and the ratio of the area of ​​the second reflective layer in the second anode to the area of ​​the first reflective layer in the first anode is 0.7-1.

5.

14. The display panel as claimed in claim 1, wherein, It also includes a plurality of second sub-pixels located within the second display area, each second sub-pixel having a second anode. The second anode includes a third transparent conductive layer located on the substrate, a second reflective layer located on the side of the third transparent conductive layer facing away from the substrate, and a fourth transparent conductive layer located on the side of the second reflective layer facing away from the substrate. The resolution ratio of the first display area to the resolution of the second display area is 0.8-1.2, and the size of the second anode is larger than the size of the first anode.

15. The display panel as claimed in claim 1, wherein, It also includes a bezel area located outside the display area, and the display panel further includes a plurality of first driving circuits electrically connected to each of the first anodes, the plurality of first driving circuits being located within the bezel area adjacent to the first display area; or, The second display area has a transition area adjacent to the first display area, and the plurality of first driving circuits are located in the transition area, or the plurality of first driving circuits are distributed in the second display area.

16. The display panel as claimed in claim 15, wherein, It also includes a transparent trace layer located between the first driving circuit and the first anode, the first driving circuit and the first anode being electrically connected through transparent traces located in the transparent trace layer.

17. The display panel as claimed in claim 11, wherein, The materials of the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer and the fourth transparent conductive layer include at least one of ITO, IZO or IGZO, and the materials of the first reflective layer and the second reflective layer include at least one of Al, Ag, Mo, Ti or TiN.

18. The display panel as claimed in claim 1, wherein, The shape of the first display area is at least one of a circle, an ellipse, a rectangle, or a polygon.

19. A display device, wherein, It includes a photosensitive device and a display panel as described in any one of claims 1-18; wherein the photosensitive device is disposed in a first display area of ​​the display panel.

20. A method for manufacturing a display panel, wherein, include: A substrate is provided; wherein the substrate has a display area, the display area including: a first display area and a second display area; the substrate has a plurality of first sub-pixels located within the first display area; wherein the light transmittance of the first display area is greater than the light transmittance of the second display area; A driving circuit and a planarization layer are stacked on one side of the substrate, and a plurality of first anodes are formed on the side of the planarization layer opposite to the substrate; wherein each first anode includes: a first transparent conductive layer located on the substrate, a first reflective layer located on the side of the first transparent conductive layer opposite to the substrate, and a second transparent conductive layer located on the side of the first reflective layer opposite to the substrate; wherein... The plurality of first anodes includes at least one first type of first anode, wherein the orthographic projection area of ​​the first transparent conductive layer in the first type of first anode on the substrate is greater than the orthographic projection area of ​​the first reflective layer in the first type of first anode on the substrate; The planarization layer includes a plurality of vias corresponding to each of the first transparent conductive layers, and the first transparent conductive layers are electrically connected to the driving circuit through the vias; The plurality of first sub-pixels includes a plurality of first red sub-pixels, a plurality of first green sub-pixels and a plurality of first blue sub-pixels. One first red sub-pixel, one first blue sub-pixel and two first green sub-pixels constitute a pixel unit. Two first green sub-pixels are arranged adjacent to each other. The first transparent conductive layer of the first anode includes a main body and a connecting line connected to the main body. The orthographic projection of the first reflective layer in the first type of first anode on the substrate falls within the orthographic projection range of the main body in the first type of first anode on the substrate. The end of the connecting line away from the main body corresponds to the via, and the distance between the via corresponding to two adjacent first green sub-pixels and their respective first reflective layers is different.

21. The manufacturing method as described in claim 20, wherein, Forming a first type of first anode within a first sub-pixel of the substrate, specifically including: A first conductive film is deposited on the substrate; the material of the first conductive film includes at least one of ITO, IZO or IGZO. A reflective conductive film is deposited on the side of the first conductive film facing away from the substrate; the reflective conductive film material includes at least one of Al, Ag, Mo, Ti, or TiN; A second conductive film is deposited on the side of the reflective conductive film away from the substrate; the material of the second conductive film includes at least one of ITO, IZO or IGZO. A first photoresist is coated on the side of the second conductive film away from the substrate, and the first photoresist is exposed and developed to form a first photoresist layer of a first width. A wet etching process is used to etch away the second conductive film after removing the first photoresist portion, forming a second transparent conductive layer. A dry etching process is used to etch away the reflective conductive film not covered by the second transparent conductive layer to form the first reflective layer; The remaining first photoresist layer is peeled off; A second photoresist is coated on the side of the second transparent conductive layer opposite to the substrate, and the second photoresist is exposed and developed to form a second photoresist layer with a second width; the second width is greater than the first width; A wet etching process is used to etch away the first conductive film to remove the second photoresist portion, forming a first transparent conductive layer. The remaining second photoresist layer is peeled off.

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