Display panel and display device

Abstract

The application discloses a display panel and a display device, the display panel comprises a first display area, a second display area and a third display area; the first display area comprises a plurality of first light emitting devices; the second display area comprises a plurality of second light emitting devices, a plurality of first pixel driving circuits arranged correspondingly to the plurality of first light emitting devices, and a plurality of second pixel driving circuits arranged correspondingly to the plurality of second light emitting devices, and each first pixel driving circuit is connected with one first light emitting device. In this way, the display uneven phenomenon appearing at a low gray scale can be concentratedly distributed in the second display area, and the transmittance of the first display area can be improved while the picture quality of the product is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] At present, the concept of full screen has been widely concerned in the display product market, and is also the development direction of future display products. For display products with front camera function such as mobile phones, the front camera is an important component that hinders the development of full screen. The designs of notch screen, water drop screen and hole screen that appear on the market cannot realize the true full screen. In this regard, the full display with camera (FDC) technology emerges as the times require and is hailed as the ultimate solution to realize full screen display products. However, for FDC technology, how to improve the transmittance of FDC area to ensure the shooting effect while guaranteeing the product image quality effect becomes a problem to be solved. SUMMARY

[0003] In view of the above problems, the present application is proposed in order to provide a display panel and a display device which overcome the above problems or at least partially solve the above problems.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising: a first display area, a second display area and a third display area, wherein:

[0005] The first display area comprises a plurality of first light emitting devices.

[0006] The second display area comprises a plurality of second light emitting devices, a plurality of first pixel driving circuits corresponding to the plurality of first light emitting devices, and a plurality of second pixel driving circuits corresponding to the plurality of second light emitting devices, each first pixel driving circuit is connected with one first light emitting device, and each second pixel driving circuit is connected with one second light emitting device.

[0007] The third display area comprises a plurality of third light emitting devices and a plurality of third pixel driving circuits corresponding to the plurality of third light emitting devices, each third pixel driving circuit is connected with one third light emitting device.

[0008] Further, one first pixel driving circuit is arranged every M second pixel driving circuits in the second display area, and M is an integer greater than or equal to 1.

[0009] Further, the number of spaced second pixel driving circuits is positively correlated with the area of the second display area.

[0010] Further, the second display area comprises a plurality of sub-areas, and a first pixel driving circuit arrangement density of each sub-area is negatively correlated with a feature distance, wherein the feature distance is a distance between the sub-area and the first display area.

[0011] Further, each sub-area is provided with one first pixel driving circuit at intervals of a plurality of second pixel driving circuits, and a number of the second pixel driving circuits at the intervals in the sub-area is negatively correlated with the feature distance.

[0012] Further, an outline shape of the second display area presents a user identification pattern.

[0013] Further, the outline shape of the second display area and an outline shape of the first display area jointly constitute the user identification pattern.

[0014] Further, the outline shape of the second display area presents any one or a combination of multiple of the following patterns:

[0015] letters, numbers and graphics.

[0016] Further, the second display area comprises at least one annular sub-area, and the annular sub-area is arranged around the first display area.

[0017] Further, an area of the third display area is greater than an area of the second display area, and the area of the second display area is greater than an area of the first display area.

[0018] In a second aspect, an embodiment of the present application provides a display device comprising the display panel provided in the first aspect.

[0019] The technical scheme provided in the embodiment of the present application has at least the following technical effects or advantages:

[0020] The display panel and the display device provided in the embodiment of the present application compress the arrangement space of the pixel driving circuit of the second display area by arranging the second display area in the display panel, and the first pixel driving circuit driving the first light emitting device in the first display area is concentratedly arranged in the second display area, so that the display unevenness phenomenon appearing at a low gray scale is concentratedly distributed in the second display area, thereby improving the display effect of the third display area, and it is beneficial to improve the transmittance of the first display area while ensuring the display quality of the product. Moreover, in an actual application scenario, the area size and the outline shape of the second display area can be customized according to user requirements, for example, the outline shape of the second display area can be customized according to a user identification pattern such as a logo pattern, so that the display unevenness at a low gray scale presents a specified pattern that is helpful to improve the overall visual effect, which is beneficial to improve the visual effect of the picture caused by the display unevenness and improve the user experience.

[0021] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 This is a schematic diagram of a display panel film layer structure in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of a pixel driving circuit layout in an embodiment of the present invention. Figure 1 ;

[0025] Figure 3 for Figure 2 A schematic diagram of grayscale display at low grayscale levels;

[0026] Figure 4 This is a schematic diagram of a pixel driving circuit layout in an embodiment of the present invention. Figure 2 ;

[0027] Figure 5 for Figure 4 A schematic diagram of grayscale display at high grayscale levels;

[0028] Figure 6 for Figure 4 A schematic diagram of grayscale display at low grayscale levels;

[0029] Figure 7 This is a schematic diagram of the structure of a display panel in an embodiment of the present invention. Figure 1 ;

[0030] Figure 8 for Figure 7 A schematic diagram of grayscale display at high grayscale levels;

[0031] Figure 9 for Figure 7 A schematic diagram of grayscale display at low grayscale levels;

[0032] Figure 10 This is a schematic diagram of the structure of a display panel in an embodiment of the present invention. Figure 2 ;

[0033] Figure 11This is a schematic diagram of the structure of a display panel in an embodiment of the present invention. Figure 3 ;

[0034] Figure 12 This is a schematic diagram of the structure of a display device according to an embodiment of the present invention. Detailed Implementation

[0035] The inventors have conducted long-term research on FDC (Full Display with Camera) technology, employing a method of moving the metal film layer that affects transmittance out of the camera area to improve the transmittance of the FDC area and ensure image quality. For example, as... Figure 1 As shown, the film structure of the display panel includes: a polyimide (PI) layer 113, a barrier and buffer (BP) layer 120, a polysilicon (P-si) active layer 111, a gate insulator (GI) layer 110, a gate layer 109, a source and drain (SD) layer 108, a planarization (PLN) layer 112, an anode (AND) layer 106, an emitting layer (EL) layer 105, a cathode (CTD) layer 104, a first chemical vapor deposition (CVD1) layer 103, an inkjet printing (IJP) layer 102, a second chemical vapor deposition (CVD2) layer 101, and an evaporation and encapsulation (EVEN) layer 121. At this point, the metal film layers affecting transmittance in the FDC region, such as the film layers forming the pixel driving circuits: P-si layer 111, GI layer 110, Gate layer 109, and SD layer 108, can be removed. The arrangement space of the pixel driving circuits in the non-FDC regions of the display panel is compressed, squeezing out the arrangement positions of the pixel driving circuits in the FDC region. Then, the corresponding signals are connected to the light-emitting devices arranged in the FDC region via winding 107. However, for the non-FDC regions, the compression of their own pixel driving circuits, the removal of the metal film layers, and the arrangement of windings such as indium tin oxide (ITO) windings will lead to an increase in parasitic capacitance / resistance, resulting in a loading difference between these areas and the normal display area, thus causing differences in the product's display quality.

[0036] For example, such as Figure 2As shown, the display panel is divided into an FDC area a1, an FDC transition area a21, and an effective display area a22, and the FDC transition area a21 is located between the FDC area a1 and the effective display area a22. If the arrangement of the pixel driving circuit of the FDC transition area a21 and the effective display area a22 is compressed, such as compressing one pixel driving circuit arrangement space for every 7 pixel driving circuits, hereinafter referred to as "7-1 compression". The difference is that the pixel driving circuit added in the FDC transition area a21 (indicated by a solid rectangle frame filled with diagonal lines) provides driving for the light emitting device in the FDC area a1, and the dummy driving circuit (Dummy Poly) added in the effective display area a22 (indicated by a dashed rectangle frame filled with diagonal lines) is not connected to the signal. Figure 2 Figure 2

[0037] At this time, in the case of a display panel frequency of 60Hz, a resolution (Pixels Per Inch, PPI for short) of 400, and a small size of the FDC area a1, if a double Gamma and double Demura algorithm is used, the quality of high gray scale (such as L255 gray scale) can be uniform, and there is no abnormality. However, the compensation effect is poor at low gray scale, and the screen Mura cannot be eliminated. For example, Figure 3 As shown, at L32 gray scale, the display gray scale of the effective display area a22 is L32, the display gray scale of the FDC transition area a21 is L27, and the display gray scale of the FDC area a1 is L16, so that the overall quality is displayed in three layers.

[0038] However, as the market demand for high frequency (such as 120Hz, etc.) and large size design of the FDC area a1 increases, the PPI 400 remains unchanged, in order to expand the area of the under-screen camera, the pixel driving circuit in the non-FDC area of the panel tends to be compressed, such as from the above-mentioned "7-1 compression" to "4-1 compression" or even lower. This will result in dense pixel driving compression, large parasitic capacitance, large resistance, and aggravated display Mura (such as point-like Dirty, vertical or cloud-like, etc.), and various optical quality will be poor. For example, Figure 4 As shown, the "3-1 compression" arrangement is taken as an example, the display at high gray scale such as L255 gray scale is as shown in Figure 5 As shown, the display gray scale of the effective display area a22 is L255, but there is vertical and cloud-like Mura, the display gray scale of the FDC transition area a21 is L127, and the display gray scale of the FDC area a1 is L87. The quality display at low gray scale such as L32 gray scale is further deteriorated, as shown in Figure 6 As shown, the visual effect is very poor, which greatly affects the user experience and does not meet the market demand.

[0039] ​​Therefore, the display panel and the display device are provided in the embodiments of the present application. The display panel is arranged with the second display area, the arrangement space of the pixel driving circuit of the second display area itself is compressed, the first pixel driving circuit driving the first light emitting device in the first display area is arranged in the second display area, and the display uneven phenomenon appearing at the low gray scale is distributed in the second display area, so that the quality effect of the third display area is improved, and the transmittance of the first display area is improved to ensure the photographing effect, and the quality effect of the product is ensured. Moreover, in the actual application scene, the size and the outline shape of the second display area can be customized according to the user demand, for example, the outline shape of the second display area can be customized according to the user identification pattern such as a logo pattern, so that the display uneven phenomenon at the low gray scale appears as the specified pattern which is helpful to improve the overall visual effect, and the picture visual effect caused by the display uneven phenomenon is improved, and the user experience is improved.

[0040] Exemplary embodiments of the display panel and the display device provided by the present application will be described in detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the technical solutions of the present application can be more thoroughly understood, and the scope of the present application can be completely conveyed to those skilled in the art.

[0041] As shown in Figure 7 From the perspective of the planar area, the display panel provided by the embodiments of the present application can include a first display area A1, a second display area A2 and a third display area A3. For example, the second display area A2 can be arranged around the first display area A1, and the third display area A3 is a display area between the first display area A1 and the second display area A2. The first display area A1 is a light-transmitting display area, which can transmit light and display pictures. For example, the first display area A1 can be an area corresponding to the arrangement of the under-screen camera in the display panel, which can realize image acquisition of the under-screen camera while displaying pictures.

[0042] In addition, from the perspective of the hierarchical structure, the display panel can include a substrate and a plurality of pixel units arranged on the substrate, and each pixel unit includes a pixel driving circuit and a light emitting device, and the pixel driving circuit is used to drive the light emitting device. For example, the light emitting device can include a red light emitting device, a green light emitting device and a blue light emitting device.

[0043] The light emitting devices are arranged in the first display area A1, the second display area A2 and the third display area A3. In an optional embodiment, in order to avoid the screen display difference caused by the non-uniform resolution and ensure the display effect, the resolutions of the first display area A1, the second display area A2 and the third display area A3 can be the same, that is, the number of light emitting devices per unit area is the same. Of course, in other embodiments, the resolutions of the above three areas can also be different, for example, the number of light emitting devices per unit area in the first display area A1 can be less than that in the second display area A2 and the third display area A3, which can be configured according to the actual scene needs.

[0044] And the pixel driving circuit is arranged in the second display area A2 and the third display area A3. Among them, the second display area A2 needs to arrange the pixel driving circuit for driving the light emitting devices in the first display area A1 in addition to arranging the pixel driving circuit for driving the light emitting devices in this area. That is, the pixel driving of the first display area A1 is moved out and arranged in the predefined second display area A2, reducing the metal film layer affecting the transmittance, thereby improving the transmittance of the first display area A1.

[0045] In order to facilitate distinction, the light emitting devices distributed in the first display area A1 are referred to as first light emitting devices, the light emitting devices distributed in the second display area A2 are referred to as second light emitting devices, and the light emitting devices distributed in the third display area A3 are referred to as third light emitting devices. The pixel driving circuit for driving the first light emitting device is referred to as the first pixel driving circuit, the pixel driving circuit for driving the second light emitting device is referred to as the second pixel driving circuit, and the pixel driving circuit for driving the third light emitting device is referred to as the third pixel driving circuit.

[0046] Therefore, the first display area A1 includes a plurality of first light emitting devices (not shown in the figure) so that the area can realize picture display. The second display area A2 includes: a plurality of second light emitting devices (not shown in the figure), a plurality of first pixel driving circuits (not shown in the figure) corresponding to the plurality of first light emitting devices, and a plurality of second pixel driving circuits (not shown in the figure) corresponding to the plurality of second light emitting devices. Each first pixel driving circuit is connected with one first light emitting device, and each second pixel driving circuit is connected with one second light emitting device. The third display area A3 includes: a plurality of third light emitting devices (not shown in the figure) and a plurality of third pixel driving circuits (not shown in the figure) corresponding to the plurality of third light emitting devices, and each third pixel driving circuit is connected with one third light emitting device.

[0047] For example, the first display area A1 includes M first light emitting devices, the arrangement of the second pixel driving circuit in the second display area A2 needs to be compressed, M first pixel driving circuits are added in the second display area A2, and then the wire winding such as the ITO signal line is arranged to correspondingly connect the M first pixel driving circuits to the M first light emitting devices to provide driving signals for the corresponding first light emitting devices.

[0048] By compressing the arrangement space of the pixel driving circuit of the second display area A2 itself, the first pixel driving circuit driving the first light emitting device in the first display area A1 is concentratedly arranged in the second display area A2, which can make the display uneven phenomenon appearing at a low gray scale be concentratedly distributed in the second display area A2, so as to ensure the display effect of the third display area A3, which is beneficial to improving the transmittance of the first display area A1 while ensuring the display effect of the product. For example, the third display area A3 can be an effective display area, and the area of the third display area A3 is greater than the sum of the areas of the second display area A2 and the first display area A1. By the above scheme, the display effect of the third display area A3 is ensured, so that the product as a whole can present a better display effect, thereby ensuring the user's visual experience.

[0049] In a specific implementation, the area of the second display area A2 can be determined according to the area of the first display area A1, or in other words, according to the number of first light emitting devices arranged in the first display area A1. Generally, the area of the second display area A2 is greater than the area of the first display area A1, and the third display area A3 is greater than the area of the second display area A2. More specifically, the area of the third display area A3 is greater than the sum of the areas of the first display area A1 and the second display area A2.

[0050] The arrangement mode of the first pixel driving circuit in the second display area A2 can be various, which can be determined according to the number of first pixel driving circuits required by the first display area A1, the contour shape of the second display area A2, and the area of the second display area A2, and the like. In order to facilitate processing, in an optional implementation, one first pixel driving circuit can be arranged every M second pixel driving circuits in the second display area A2, and M is an integer greater than or equal to 1. That is, the arrangement of M second pixel driving circuits is compressed to squeeze out the arrangement space of one first pixel driving circuit, so as to concentrate the arrangement of the first pixel driving circuit in the second display area A2. For example, M can be 4, 7, or 9, etc.

[0051] In an alternative embodiment, the M value, i.e. the number of second pixel driving circuits spaced apart, is positively correlated with the area of the second display region A2. After the number of first light emitting devices in the first display region A1 is determined, the number of first pixel driving circuits required can be determined. On this basis, the larger the area of the second display region A2, the smaller the arrangement density of the first pixel driving circuits in the second display region A2 can be, so that the number of second pixel driving circuits spaced apart by the arrangement of the first pixel driving circuits can be larger, and vice versa, the number of second pixel driving circuits spaced apart can be smaller.

[0052] The first pixel driving circuits arranged in the second display region A2 need to be connected to the first light emitting devices in the first display region A1 through wiring to provide driving signals for them, and the arrangement of the wiring also increases the load and affects the display quality. Therefore, in order to minimize the increase in load caused by the arrangement of the signal lines, the second display region A2 can be arranged adjacent to the first display region A1, and the first pixel driving circuits in the second display region A2 can be arranged as close as possible to the first display region A1.

[0053] Further, the second display region A2 can be divided into sub-regions, and the arrangement density of the first pixel driving circuits in each sub-region can be set according to the distance from the first display region A1. For example, the second display region A2 includes a plurality of sub-regions, and the arrangement density of the first pixel driving circuits in each sub-region is negatively correlated with the characteristic distance. The characteristic distance is the distance between the sub-region and the first display region A1. That is, the closer the sub-region to the first display region A1, the higher the arrangement density of the first pixel driving circuits, and the farther the sub-region to the first display region A1, the lower the arrangement density. In this way, the increased wiring load caused by the migration of the first pixel driving circuits can be minimized, and the parasitic capacitance / resistance of the sub-regions can be balanced, which is beneficial to improve the display uniformity of each sub-region in the second display region A2, so that the gray scale of the second display region A2 presented at low gray scale is more uniform.

[0054] For example, each sub-region is provided with one first pixel driving circuit every several second pixel driving circuits. Then, in these sub-regions, the number of second pixel driving circuits spaced apart is negatively correlated with the characteristic distance.

[0055] For example, each sub-region is provided with one first pixel driving circuit every several second pixel driving circuits. Then, in these sub-regions, the number of second pixel driving circuits spaced apart is negatively correlated with the characteristic distance. Figure 7As shown in the second display area A2, the second display area A2 includes three sub-areas, wherein the sub-area A21 is arranged around the first display area A1, the sub-area A22 and the sub-area A23 are arranged on both sides of the sub-area A21 and have the same distance from the first display area A1. In this case, the number of second pixel driving circuits spaced in the sub-area A22 and the sub-area A23 can be equal and greater than the number of second pixel driving circuits spaced in the sub-area A21, so as to balance the parasitic capacitance / resistance of the sub-area A21, the sub-area A22 and the sub-area A23. For example, the number of second pixel driving circuits spaced by the first pixel driving circuit in the sub-area A22 and the sub-area A23 can be 9, that is, the circuit compression design of "9 to 1" is adopted, and the number of second pixel driving circuits spaced in the sub-area A21 can be 4, that is, the circuit compression design of "4 to 1" is adopted.

[0056] At this time, as shown in the low gray scale such as L32, the display gray scale of the first display area A1 is L8; in the second display area A2, the display gray scale of the sub-area A21 is L16, and the display gray scale of the sub-area A22 and the sub-area A23 is L20; in the third display area A3, the display gray scale of the wire arrangement area is L27, and the display gray scale of the area other than the wire arrangement area is L32. That is, the pattern corresponding to the second display area A2 can be more obvious under the low gray scale, but the display effect of the third display area A3 is still normal. Therefore, by arranging the second display area A2, the product image quality effect can be improved while ensuring the display effect of the third display area A3. Figure 8 Figure 8 As shown in the low gray scale such as L32, the display gray scale of the first display area A1 is L8; in the second display area A2, the display gray scale of the sub-area A21 is L16, and the display gray scale of the sub-area A22 and the sub-area A23 is L20; in the third display area A3, the display gray scale of the wire arrangement area is L27, and the display gray scale of the area other than the wire arrangement area is L32. That is, the pattern corresponding to the second display area A2 can be more obvious under the low gray scale, but the display effect of the third display area A3 is still normal. Therefore, by arranging the second display area A2, the product image quality effect can be improved while ensuring the display effect of the third display area A3.

[0057] As shown in the low gray scale such as L32, the display gray scale of the first display area A1 is L8; in the second display area A2, the display gray scale of the sub-area A21 is L16, and the display gray scale of the sub-area A22 and the sub-area A23 is L20; in the third display area A3, the display gray scale of the wire arrangement area is L27, and the display gray scale of the area other than the wire arrangement area is L32. That is, the pattern corresponding to the second display area A2 can be more obvious under the low gray scale, but the display effect of the third display area A3 is still normal. Therefore, by arranging the second display area A2, the product image quality effect can be improved while ensuring the display effect of the third display area A3. Figure 9 It should be noted that the sub-areas in the second display area A2 can be connected to each other or not connected to each other, which is determined according to the actual outline design of the second display area A2.

[0058] It should be noted that the sub-areas in the second display area A2 can be connected to each other or not connected to each other, which is determined according to the actual outline design of the second display area A2.​

[0059] In actual implementation, the contour shape and position of the second display area A2 can be customized according to actual user needs, and adjusted according to the contour shape and position of the first display area A1 planned actually. By customizing the contour shape of the second display area A2 as a specified pattern such as a product logo or a good-looking figure that helps improve the overall visual effect, the picture visual effect caused by display unevenness can be improved, and user experience can be improved.

[0060] In an optional embodiment, the contour shape of the second display area A2 is a user identification pattern. Alternatively, the contour shape of the second display area A2 can also be a user identification pattern together with the contour shape of the first display area A1. In this way, display unevenness at a low gray level will mainly concentrate in the second display area A2, and present as a user identification pattern, which helps improve the picture visual effect caused by display unevenness, and improve user experience.

[0061] For example, the contour shape of the second display area A2 can be any one or a combination of multiple of letters, numbers, and figures. Figure 7 The pattern "×○×" presented by the contour shape of the second display area A2 is only illustrative, and can be set according to user needs. Figure 10 As shown in FIG. 6, the contour shape of the first display area A1 can be set as an oval shape, and the contour shape of the second display area A2 is set as the shape of a butterfly wing, and together present as a butterfly pattern, which helps improve user visual effect.

[0062] Of course, in addition to the above patterns, the contour shape of the second display area A2 can also be other customizable patterns such as symbol patterns, which are not limited in the present embodiment.

[0063] In an optional embodiment, in order to improve the picture presentation effect when display unevenness occurs, the second display area A2 can be set in cooperation with the first display area A1. For example, the second display area A2 can include at least one annular sub-area, which is set around the first display area A1. For example, the first display area A1 is a circular or oval area, and the second display area A2 can include a circular ring-shaped sub-area, which is set outside the first display area A1, as shown in FIG. 7. Figure 7 In addition, the position of the first display area A1 can be set according to the position of the annular sub-area in the second display area A2, as shown in FIG. 8. Figure 11 As shown in FIG. 8, the pattern "××○" presented by the contour shape of the second display area A2, and the first display area A1 can be located at the upper right of the screen.

[0064] Based on the same inventive concept, the present embodiment also provides a display device, as shown in FIG. 9. Figure 12As shown, the display device includes a display panel 201 and an image acquisition device 202. The specific structure of the display panel 201 can refer to the related description in the foregoing embodiments, which will not be described here again. The normal projection of the light receiving surface of the image acquisition device 202 on the substrate substrate is located in the normal projection of the first display area A1 on the substrate substrate, so as to receive the light transmitted from the first display area A1.

[0065] For example, the display panel 201 can be an organic light emitting diode (OLED) display panel or an active matrix organic light emitting diode (AMOLED) display panel, etc. The image acquisition device 202 can be a fingerprint identification device, a camera or a 3D imaging optical sensor, etc. The display device can be a smart display, a tablet computer, a notebook computer, a mobile phone or other devices with camera and display functions. The present embodiment is not limited thereto.

[0066] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present specification.

[0067] It should be noted that the above embodiments illustrate the application rather than limit the application, and alternative embodiments can be designed by those skilled in the art without departing from the scope of the appended claims. The word "comprise" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" before the components does not exclude the presence of a plurality of such components. The application can be implemented by means of hardware comprising several distinct components, and by means of a suitably programmed computer. In the unit claims enumerating several devices, several of these devices can be embodied by one and the same item of hardware. The use of the word "at least" followed by a list of one or more members does not exclude the presence of others. The use of the words "first", "second" and the like does not imply any order, but they are used to name different components. It is to be understood that the terms so used are interchangeable under appropriate circumstances. The term "plurality" means two or more, including two.

Claims

1. A display panel, characterized in that, include: The display area consists of a first display area, a second display area, and a third display area, wherein: The first display area includes: a plurality of first light-emitting devices; The second display area includes: a plurality of second light-emitting devices, a plurality of first pixel driving circuits corresponding to the plurality of first light-emitting devices, and a plurality of second pixel driving circuits corresponding to the plurality of second light-emitting devices, wherein each first pixel driving circuit is connected to a first light-emitting device, and each second pixel driving circuit is connected to a second light-emitting device; The third display area includes: a plurality of third light-emitting devices and a plurality of third pixel driving circuits corresponding to the plurality of third light-emitting devices, wherein each third pixel driving circuit is connected to one of the third light-emitting devices; In the event of uneven display in the second display area, the outline shape of the second display area is presented as a user logo pattern, or the outline shape of the second display area and the outline shape of the first display area together constitute a user logo pattern, which is used to improve the visual experience of the screen.

2. The display panel according to claim 1, characterized in that, In the second display area, a first pixel driving circuit is set every M second pixel driving circuits, where M is an integer greater than or equal to 1.

3. The display panel according to claim 2, characterized in that, The number of second pixel driving circuits that are spaced apart is positively correlated with the area of ​​the second display area.

4. The display panel according to claim 1, characterized in that, The second display area includes multiple sub-regions, and the arrangement density of the first pixel driving circuit in each sub-region is negatively correlated with the feature distance, wherein the feature distance is the distance between the sub-region and the first display area.

5. The display panel according to claim 4, characterized in that, Each sub-region has a first pixel driving circuit set at intervals of several second pixel driving circuits, and the number of second pixel driving circuits in the sub-region is negatively correlated with the feature distance.

6. The display panel according to claim 1, characterized in that, The outline shape of the second display area is presented as any one or more combinations of the following patterns: Letters, numbers, and graphics.

7. The display panel according to claim 1, characterized in that, The second display area includes at least one annular sub-region, which surrounds the first display area.

8. The display panel according to claim 1, characterized in that, The area of ​​the third display area is larger than the area of ​​the second display area, and the area of ​​the second display area is larger than the area of ​​the first display area.

9. A display device, characterized in that, The display panel includes any one of claims 1-8.

Images