A display panel and a display device

Abstract

The present invention provides a display panel and a display device. The display panel includes: a display area, the display area including an optical module setting area, a transition area, and a regular area; the display area includes a plurality of pixels, the pixels including first pixels, transition pixels, and regular pixels, the first pixels being located in the optical module setting area, the transition pixels being located in the transition area, and the regular pixels being located in the regular area; a pixel circuit, the pixel circuit including a first pixel circuit, a second pixel circuit, and a third pixel circuit, wherein the second pixel circuit is located in the transition area and is electrically connected to the transition pixels, the third pixel circuit is located in the regular area and is electrically connected to the regular pixels; the first pixel circuit is electrically connected to the first pixels, and transistors of at least part of the first pixel circuit are located in the transition area. The present invention can improve the light transmittance of the optical module setting area.

Description

[0001] This application is a divisional application of the application with the application date of August 27, 2019, the application number of 201910795530.2, and the invention creation name of "A display panel and a display device".

Technical Field

[0002] The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.

Background Art

[0003] With the development of display technologies, people not only require a smooth usage experience for the electronic products they use, but also have higher and higher requirements for the visual experience. A high screen-to-body ratio has become the current research direction. For electronic products, the setting of optical modules such as front cameras will inevitably occupy a certain amount of space, thus affecting the screen-to-body ratio. In order to achieve a true full screen, researchers consider the implementation solutions of under-screen optical modules.

[0004] An optical module, such as a camera, is disposed below the light-emitting devices of the display panel, that is, the optical module is disposed in the display area. The position where the optical module is located can be normally displayed. When the optical module needs to be used, light penetrates the display panel and reaches the optical module and is finally utilized by the optical module. In the display panel structure of the prior art, the amount of light that the optical module can receive is less, which affects the performance of the optical module. How to improve the transmittance of light penetrating the display panel, increase the amount of light received by the optical module, and improve the performance of the under-screen optical module is a technical problem that needs to be solved urgently at present.

Summary of the Invention

[0005] In view of this, embodiments of the present invention provide a display panel and a display device to solve the problem of improving the transmittance of light penetrating the display panel and improving the performance of under-screen optical elements in the prior art.

[0006] On the one hand, an embodiment of the present invention provides a display panel, which includes: a display area, and the display area includes an optical module setting area, a transition area, and a regular area;

[0007] The display area includes a plurality of pixels, and the pixels include first pixels, transition pixels, and regular pixels. The first pixels are located in the optical module setting area, the transition pixels are located in the transition area, and the regular pixels are located in the regular area;

[0008] A pixel circuit, which includes a first pixel circuit, a second pixel circuit, and a third pixel circuit. Among them, the second pixel circuit is located in the transition area and is electrically connected to the transition pixels, and the third pixel circuit is located in the regular area and is electrically connected to the regular pixels;

[0009] The first pixel circuit is electrically connected to the first pixel, and transistors of at least a part of the first pixel circuit are located in the transition region.

[0010] On the other hand, based on the same inventive concept, an embodiment of the present invention provides a display device, including any one of the display panels provided by the present invention.

[0011] The display panel and the display device provided by the embodiments of the present invention have the following beneficial effects:

[0012] In the present invention, a transition region is provided between the optical module setting region and the conventional region. The present invention arranges at least a part of the first pixel circuit in the transition region, so as to realize arranging a part of the pixel circuit for driving the first pixel in the optical module setting region in the transition region. Through a reasonable pixel circuit layout, at least a part of the pixel circuit is moved out of the optical module setting region, increasing the area of the light-transmitting region in the optical module setting region, thereby being able to increase the transmittance of light passing through the display panel in the optical module setting region and improving the optical performance of the under-screen optical module.

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 Schematic diagram of an optional implementation manner of the display panel provided by an embodiment of the present invention;

[0015] Figure 2 Schematic diagram of another optional implementation manner of the display panel provided by an embodiment of the present invention;

[0016] Figure 3 For Figure 1 Partial enlarged schematic diagram of an optional implementation manner at the Q position of the display panel in

[0017] Figure 4 Schematic diagram of an optional implementation manner of the pixel circuit in the display panel provided by an embodiment of the present invention;

[0018] Figure 5 For Figure 1 Another partial enlarged schematic diagram of an optional implementation manner at the Q position of the display panel in

[0019] Figure 6 For Figure 5 Schematic cross-sectional diagram of an optional implementation manner at the tangent line E-E' position in

[0020] Figure 7For Figure 5 Another optional embodiment cross-sectional schematic diagram at the position of the median tangent E-E';

[0021] Figure 8 Partial schematic diagram of another optional embodiment of the display panel provided by the embodiment of the present invention;

[0022] Figure 9 Partial schematic diagram of another optional embodiment of the display panel provided by the embodiment of the present invention;

[0023] Figure 10 Schematic diagram of the film layer structure of another optional embodiment of the display panel provided by the embodiment of the present invention;

[0024] Figure 11 Partial schematic diagram of another optional embodiment of the display panel provided by the embodiment of the present invention;

[0025] Figure 12 Partial schematic diagram of another optional embodiment of the display panel provided by the embodiment of the present invention;

[0026] Figure 13 Partial schematic diagram of another optional embodiment of the display panel provided by the embodiment of the present invention;

[0027] Figure 14 Partial schematic diagram of another optional embodiment of the display panel provided by the embodiment of the present invention;

[0028] Figure 15 Partial schematic diagram of another optional embodiment of the display panel provided by the embodiment of the present invention;

[0029] Figure 16 Schematic diagram of an optional embodiment of the display device provided by the embodiment of the present invention.

Specific Embodiment

[0030] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] It should be clear that the described embodiments are only part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0032] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "the" and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0033] It should be understood that the term "and / or" used herein is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally indicates that the front and rear associated objects are in an "or" relationship.

[0034] Based on the problems existing in the prior art, the present invention provides a display panel. A transition area is provided between the optical module setting area and the conventional area. By reducing the pixel density of the transition area, the number of pixel circuits in the transition area can be reduced, so that some of the pixel circuits for driving the pixels in the optical module setting area can be arranged in the transition area. Through a reasonable layout of the pixel circuits, some of the pixel circuits are moved out of the optical module setting area, increasing the area of the light-transmitting area in the optical module setting area, thereby being able to increase the transmittance of light through the display panel in the optical module setting area and improving the optical performance of the under-screen optical module.

[0035] An embodiment of the present invention provides a display panel, which includes: a display area, the display area includes an optical module setting area, a transition area and a conventional area, the transition area at least semi-surrounds the optical module setting area, and the conventional area at least semi-surrounds the transition area. Figure 1 It is a schematic diagram of an optional implementation manner of the display panel provided by an embodiment of the present invention. Figure 2 It is a schematic diagram of another optional implementation manner of the display panel provided by an embodiment of the present invention. Figure 3 is Figure 1 A partial enlarged schematic diagram of an optional implementation manner at the Q position of the display panel in

[0036] As Figure 1 shown, the display panel includes: a display area AA, the display area AA includes an optical module setting area A, a transition area B and a conventional area C, showing the situation where the transition area B surrounds the optical module setting area A and the conventional area C surrounds the transition area B. Optionally, as Figure 2 shown, in the display panel, the transition area B semi-surrounds the optical module setting area A, and the conventional area C semi-surrounds the transition area B. It should be noted that the present invention does not limit the specific position of the optical module setting area in the display area, and it can be set according to specific requirements in practice. Figure 1 and Figure 2 The shapes of the optical module setting area A and the transition area B in

[0037] are also only schematically shown and are not a limitation to the present invention. Figure 1 Taking the display panel shown in Figure 3As shown, the display area includes multiple pixels. The pixels include first pixels P1, transition pixels P2, and regular pixels P3. The first pixels P1 are located in the optical module setting area A, the transition pixels P2 are located in the transition area, and the regular pixels P3 are located in the regular area. The pixel density in the optical module setting area A is the first density, the pixel density in the transition area B is the second density, and the pixel density in the regular area C is the third density. Among them, the first density is less than the third density, and the second density is less than the third density. In the present invention, the pixels are divided into first pixels P1, transition pixels P2, and regular pixels P3 according to the area where the pixels are located. Among them, the pixel density refers to the number of pixels per inch of the screen.

[0038] Continue to refer to Figure 3 As shown, the display panel further includes pixel circuits. The pixel circuits include a first pixel circuit DL1, a second pixel circuit DL2, and a third pixel circuit DL3. Among them, the second pixel circuit DL2 is located in the transition area B and is electrically connected to the transition pixels P2, and the third pixel circuit DL3 is located in the regular area C and is electrically connected to the regular pixels P3; the first pixel circuit DL1 is electrically connected to the first pixels P1, and at least part of the first pixel circuit DL1 is located in the transition area B. In the figure, only a simplified schematic diagram of the pixel circuit is shown. Taking the regular area C as an example, the third pixel P3 overlaps with the third pixel circuit DL3 that drives this pixel. In the optical module setting area A, the first pixel circuit DL3 that does not move out of this area overlaps with the first pixels P1 it drives. In the transition area B, some of the second pixels P2 only overlap with the second pixel circuit DL2 that drives this pixel, and some of the second pixels P2 may also overlap with the first pixel circuit DL1 that moves into the transition area B. Optionally, the first pixel circuit DL1 that moves into the transition area B may also not overlap with the second pixels P2.

[0039] Taking Figure 3 the first direction x and the second direction y shown in Figure 3 as an example, for example, the first direction x is the row direction and the second direction y is the column direction.

[0040] The display panel provided by the embodiment of the present invention may be an organic light-emitting display panel. The display panel includes light-emitting devices. Usually, one pixel includes one light-emitting device, and the area where the light-emitting device is located is the light-emitting area of the pixel. The light-emitting device includes an anode, a light-emitting layer, and a cathode stacked in sequence. In order to improve the light utilization rate, usually the anode is made into a reflective anode. The light emitted by the light-emitting layer penetrates the cathode to realize the light-emitting display of the pixel. The amount of light that can penetrate the anode from the light emitted by the light-emitting layer is very small. Therefore, usually the area where the light-emitting device is located is considered the non-transmissive area of the display panel. The non-transmissive area refers to the area where light cannot penetrate. In addition, since the display panel also includes a pixel circuit for driving the pixel to emit light and various metal traces, the metal traces will also block the light, resulting in the light not being able to penetrate the display panel. Therefore, the area where the pixel circuit and the metal traces are located also belongs to the non-transmissive area. Then, the area between two adjacent light-emitting devices in the display area of the display panel is not completely a transmissive area. Therefore, the overall area of the transmissive area in the display area is very small, and the amount of light that can penetrate the display panel is small. When applying the under-screen optical module solution, the amount of light that the optical module can utilize is small, resulting in poor optical performance of the under-screen optical module and affecting the user experience.

[0041] In the embodiment of the present invention, the optical module setting area A is a reserved area for the optical module, and the pixel density of the optical module setting area A is less than the pixel density of the conventional area C. When assembled into a display device, an optical module, such as a camera, can be set at the position corresponding to the optical module setting area A. When the display function is required, the optical module setting area A can perform normal display. When the camera function is required, the light can penetrate the display panel from the optical module setting area and be utilized by the camera. The present invention first sets the pixel density of the optical module setting area A to be less than the pixel density of the conventional area C. Then, the number of pixels in the optical module setting area becomes smaller, and the number of pixel circuits for driving the pixels to display also becomes smaller, which can reduce the area of the non-transmissive area in the optical module setting area. Correspondingly, the area of the transmissive area will become larger, so as to increase the amount of light penetrating the optical module setting area and improve the optical performance of the under-screen optical module. Further, in the present invention, a transition area B is provided between the optical module setting area A and the conventional area C. The pixel density of the transition area B is less than the pixel density of the conventional area C. Then, the number of second pixel circuits to be set in the transition area B becomes smaller. The present invention sets at least part of the first pixel circuits in the transition area, that is, by reducing the pixel density of the transition area, it is realized that part of the pixel circuits for driving the first pixels in the optical module setting area are set in the transition area. Through reasonable pixel density and pixel circuit layout, at least part of the pixel circuits are moved out of the optical module setting area, increasing the area of the transmissive area in the optical module setting area, so as to increase the transmittance of the light penetrating the display panel in the optical module setting area and improve the optical performance of the under-screen optical module.

[0042] Further,Figure 4 Schematic diagram of an alternative embodiment of the pixel circuit in the display panel provided by the embodiment of the present invention, as Figure 4 shown, the pixel circuit includes a first scan line S1, a second scan line S2, a light emission control signal line Emit, a data line D, a power supply signal line Pvdd, a reset signal line Ref, a first switch transistor to a sixth switch transistor (T1 to T6), and a driving transistor M. The pixel circuit usually includes multiple transistors and multiple signal lines. In order to drive the display panel to display, the pixel circuits are densely arranged in the array layer of the display panel. It should be noted that Figure 4 the pixel circuit in

[0043] In the display panel provided by the embodiment of the present invention, the optical module setting area is a reserved area corresponding to the under-screen optical module. For example, when applying the under-screen camera solution, the gaps between various signal lines in the pixel circuit (refer to the above Figure 4 schematic diagram, for example, the gap between the data line D and the power supply signal line Pvdd, the gap between the first scan line S1 and the reset signal line Ref, etc.) will have a diffraction effect on the light penetrating the optical module setting area. The light diffracted and then utilized by the camera will seriously affect the quality of camera shooting. Therefore, the inventor further considered that in the area adjacent to the transition area in the optical module setting area, increasing the size of some transition pixels and using the transition pixels to block some of the gaps between the pixel circuit traces to improve the influence of the diffraction effect on the performance of the optical module.

[0044] In one embodiment, Figure 5 For Figure 1 an alternative embodiment partial enlarged schematic diagram at the Q position of the display panel in Figure 5 shown, the area of the transition pixel P2 is larger than the area of the conventional pixel P3. In the transition area B, some transition pixels P2 overlap with the first pixel circuit DL1 and can cover at least some of the trace gaps in the first pixel circuit DL1. The pixels in the display panel include an anode, a light-emitting layer, and a cathode stacked in sequence in the direction perpendicular to the display panel. When viewed from the top-down perspective in Figure 5 , the anode, the light-emitting layer, and the cathode overlap, and the structure with the largest area among the anode, the light-emitting layer, and the cathode defines the area of the corresponding pixel.

[0045] In one embodiment, by increasing the area of the anode of some transition pixels, the transition pixels are used to block the trace gaps of the first pixel circuit. Figure 6 For Figure 5 an alternative embodiment cross-sectional schematic diagram at the tangent E-E' position in Figure 6As shown, the pixel includes an anode a, a light-emitting layer b, and a cathode c stacked in sequence. The area of the anode a of the transition pixel P2 is larger than that of the anode a of the regular pixel P3; in the direction e perpendicular to the plane of the display panel, at least a part of the anode a of the transition pixel P2 overlaps with the trace gap of the first pixel circuit DL1. The actual pixel circuit traces are complex, and the circuit structure and trace gaps cannot be fully shown in the cross-sectional view. Figure 6 Only the trace gap in the first pixel circuit DL1 is schematically shown in []. Figure 6 It is also schematically shown in [] that the anode area of the transition pixel P2 that does not overlap with the first pixel circuit DL1 also becomes larger. Optionally, only the anode area of the transition pixel P2 that overlaps with the first pixel circuit DL1 can be designed to be larger than the anode area of the regular pixel. In the display panel provided by this embodiment, by setting the pixel density in the transition area to be less than that in the regular area, the number of the second pixel circuits for driving the transition pixels arranged in the transition area is reduced, and then at least a part of the first pixel circuits are arranged in the transition area, increasing the area of the light-transmitting area in the optical module setting area, so that the amount of light penetrating the optical module setting area can be increased, and the optical performance of the under-screen optical module can be improved. Further, by setting the anode area of the transition pixel to be larger than the anode area of the regular pixel, the light-shielding performance of the anode of the transition pixel is used to block at least a part of the trace gaps of the first pixel circuit, reducing the diffraction effect of the trace gaps of the first pixel circuit on the light penetrating the display panel, that is, the diffraction effect of the light around the optical module setting area can be reduced to improve the performance of the optical module when the under-screen optical module solution is applied.

[0046] Preferably, the trace gap of the first pixel circuit located in the transition area is completely covered by the anode of the transition pixel. In the embodiment of the present invention, arranging at least a part of the first pixel circuits in the transition area can reduce the number of the first pixel circuits arranged in the optical module setting area, thereby reducing the area of the non-light-transmitting area in the optical module setting area, correspondingly increasing the area of the light-transmitting area, improving the light transmittance of the optical module setting area, and thus improving the available light amount of the under-screen optical module in the optical module setting area. Further setting that the trace gap of the first pixel circuit located in the transition area is completely covered by the anode of the transition pixel maximally reduces and eliminates the light diffraction caused by the traces of the first pixel circuit located in the transition area, effectively improving the performance of the optical module when the under-screen optical module solution is applied.

[0047] In one embodiment, the light-emitting area of the transition pixel is larger than that of the regular pixel. By simultaneously increasing the anode area, the light-emitting layer area, and the cathode area of some transition pixels, the trace gaps of the first pixel circuit are blocked by the transition pixels. Figure 7 For Figure 5 Another optional embodiment cross-sectional schematic diagram at the tangent position E-E'. As Figure 7As shown, the pixel includes an anode a, a light-emitting layer b, and a cathode c stacked in sequence. The light-emitting area of the transition pixel P2 is larger than that of the regular pixel P3. The area of the anode a of the transition pixel P2 is larger than that of the anode a of the regular pixel P3. The area of the light-emitting layer b of the transition pixel P2 is larger than that of the light-emitting layer b of the regular pixel P3. Figure 7 It is also shown in Figure 7 that the areas of the anode and the light-emitting layer of the transition pixel P2 that do not overlap with the first pixel circuit DL1 also become larger. Optionally, only the areas of the anode and the light-emitting layer of the transition pixel P2 that overlap with the first pixel circuit DL1 can be designed to become larger. In this embodiment, at least part of the first pixel circuit is arranged in the transition area, which can increase the area of the light-transmitting area in the optical module setting area and improve the light transmittance of the optical module setting area. Further, by increasing the light-emitting area of the transition pixel, the transition pixel is used to block at least part of the wiring gaps of the first pixel circuit, so as to reduce the diffraction effect of the wiring gaps of the first pixel circuit on light, that is, the diffraction effect of the light around the optical module setting area can be reduced, and the performance of the optical module when applying the under-display optical module solution can be improved. In addition, in the present invention, the pixel density in the transition area is less than that in the regular area. In order to ensure that the brightness of the transition area is consistent with that of the regular area, it may be necessary to set an increased data voltage signal for the transition pixel. After the light-emitting area of the transition pixel is set to be larger in this embodiment, the current density of the transition pixel can be correspondingly reduced, which is beneficial to improving the lifespan of the transition pixel.

[0048] In one embodiment, in the display panel provided by the embodiment of the present invention, the number of the first pixels in the optical module setting area is N, and the number of the first pixel circuits in the transition area is n, where 0.3 ≤ n / N ≤ 0.8. n / N represents the proportion of the first pixel circuits located in the transition area among all the first pixel circuits. n / N = 0.3 means that 30% of the first pixel circuits are moved out of the optical module setting area and arranged in the transition area. n / N = 0.8 means that 80% of the first pixel circuits are moved out of the optical module setting area and arranged in the transition area. The inventor considered that in practice, the proportion of the first pixel circuits designed to be arranged in the transition area is related to various factors such as the size of the optical module setting area, the pixel density in the transition area, the total number of pixel circuits that can be arranged in the transition area, the difficulty of the process manufacturing, and the display effects of the transition area and the optical module setting area. After comprehensively considering the influence of various factors, it is designed that 0.3 ≤ n / N ≤ 0.8. When such a design is adopted, the pixel density in the transition area does not need to be set too small, ensuring that there is no obvious display boundary between the transition area and the regular area during normal display, and a relatively large number of first pixel circuits can be placed in the transition area, greatly increasing the area of the light-transmitting area in the optical module setting area and improving the light transmittance. Optionally, in the display area, the pixels and the pixel circuits are electrically connected one by one.

[0049] In one embodiment, Figure 8Partial schematic diagram of another alternative embodiment of the display panel provided by the embodiment of the present invention. As Figure 8 shown, the first pixel P1 includes a first edge pixel P11, and the first edge pixel P11 is adjacent to the transition region B. Among them, at least part of the first pixel circuit DL1 electrically connected to the first edge pixel P11 is located in the transition region B. In the display panel, the pixel circuits that drive the pixels to display are also densely arranged. The first edge pixel is adjacent to the transition region. In this embodiment, the first pixel circuit electrically connected to the first edge pixel is arranged in the transition region. When no design change is made, it is adjacent to the transition region. Moving its position into the transition region has little impact on the arrangement of other pixel circuits in the display panel during manufacturing, and the process manufacturing is simple.

[0050] In one embodiment, Figure 9 Partial schematic diagram of another alternative embodiment of the display panel provided by the embodiment of the present invention. As Figure 9 shown, the first pixel P1 further includes a sub-edge pixel P12. The sub-edge pixel P12 is located on the side of the first edge pixel P11 away from the transition region B and is adjacent to the first edge pixel P11; at least part of the first pixel circuit DL1 electrically connected to the first edge pixel P11 is located in the transition region B, and at least part of the first pixel circuit DL1 electrically connected to the sub-edge pixel P12 is located in the transition region B. There is a first edge pixel P11 between the sub-edge pixel P12 and the transition region, that is, the distance between the sub-edge pixel P12 and the transition region is relatively close. Moving the first pixel circuit DL1 electrically connected to the sub-edge pixel P12 into the transition region B has little impact on the overall arrangement of pixel circuits in the display panel, and the design is relatively simple and the process difficulty is low.

[0051] It should be noted that, Figure 9 the arrangement of pixel circuits in the transition region B is only schematically shown. After at least part of the first pixel circuit DL1 is arranged in the transition region, it may have a certain impact on the arrangement of the second pixel circuit DL2 in the transition region. During actual manufacturing, after the circuit structure of the pixel circuit is determined, the area occupied by the pixel circuit is basically unchanged, but the arrangement positions of each component in the pixel circuit can be adjusted to realize the adjustment of the occupied length of the pixel circuit in the first direction x and the second direction y as shown in Figure 9 so as to realize a reasonable arrangement design of the pixel circuits in the transition region B, and realize arranging at least part of the first pixel circuit in the transition region B to increase the area of the light transmission region in the optical module setting region A and improve the light transmittance of the optical module setting region A.

[0052] In one embodiment, Figure 10 Schematic diagram of the film layer structure of another alternative embodiment of the display panel provided by the embodiment of the present invention. As Figure 10As shown, the pixel includes an anode a, a light-emitting layer b, and a cathode c stacked in sequence; the display panel further includes a first connection trace L, and a first pixel circuit DL1 located in the transition region is electrically connected to the anode a of the first pixel P1 through the first connection trace L; wherein, the display panel further includes a data line D, and the first connection trace L is disposed in a different layer from the data line D. The data line D provides a data signal for the pixel circuit. A driving transistor M in the pixel circuit is schematically shown in the figure, the drain d of the driving transistor M is electrically connected to the anode a of the pixel, and the source s of the driving transistor M is electrically connected to the data line D. The drain d of the driving transistor M of the first pixel circuit DL1 is connected to the first connection trace L, and the first connection trace L is disposed in a different layer from the anode a and is electrically connected through a via hole. Figure 10 The driving M in the figure is only schematically illustrated in a top-gate structure. In a display panel of the related art, generally, the pixel circuit is disposed below the corresponding pixel, and the drain of the driving transistor in the pixel circuit is electrically connected to the anode of the pixel through a via hole in an insulating layer. In an embodiment of the present invention, at least a part of the first pixel circuit electrically connected to the first pixel is disposed in the transition region, that is, there is a dislocation between the first pixel circuit located in the transition region and the first pixel it drives. On this basis, a solution that is easily thought of by those skilled in the art is: Solution 1, making a trace electrically connected to the anode on the same layer as the anode, extending to the position corresponding to the drain of the driving transistor, and then electrically connecting to the drain through a via hole; Solution 2, making a trace electrically connected to the drain on the same layer as the drain of the driving transistor, extending to the position corresponding to the anode of the pixel, and then electrically connecting to the anode through a via hole. For Solution 1, the inventor considers that the trace made on the same layer as the anode will occupy a certain space at the position adjacent to the optical module setting area in the transition region. Since this trace is on the same layer as the anode, in the direction perpendicular to the display panel, neither the first pixel nor the transition pixel can overlap with it, which will have an adverse effect on the solution of covering the trace gap of the first pixel circuit by the transition pixel. For Solution 2, the inventor considers that since the traces in the pixel circuit of the display panel are complex and dense, if a trace usually connected to the drain is simply made, in order to avoid short circuits, the layout of the pixel circuit needs to be changed in design. After further thinking by the inventor, in the proposed embodiment, a first connection trace disposed in a different layer from the data line is added, and the first connection trace realizes the electrical connection between the first pixel circuit located in the transition region and the first pixel located in the optical module setting area, ensuring an increase in the light transmittance of the optical module setting area, while having little influence on the layout of the pixel circuit in the transition region and having a simple manufacturing process.

[0053] In one embodiment, Figure 11 is a partial schematic diagram of another alternative embodiment of the display panel provided by the embodiment of the present invention. As Figure 11As shown, the light-emitting area of the first pixel P1 is smaller than that of the conventional pixel P3. In this embodiment, the pixel density of the optical module setting area is set to be smaller than that of the conventional area, so as to increase the amount of light passing through the optical module setting area. A transition area is set between the optical module setting area and the conventional area, and the pixel density of the transition area is smaller than that of the conventional area. At least part of the first pixel circuit is arranged in the transition area. That is, by reducing the pixel density of the transition area, part of the pixel circuit for driving the first pixel in the optical module setting area is arranged in the transition area, reducing the area of the non-light-transmitting area in the optical module setting area, and correspondingly increasing the area of the light-transmitting area in the optical module setting area. Further, setting the light-emitting area of the first pixel in the optical module setting area to be smaller than that of the conventional pixel can further reduce the area of the non-light-transmitting area in the optical module setting area, thereby increasing the transmittance of the light passing through the display panel in the optical module setting area.

[0054] In one embodiment, Figure 12 is a partial schematic diagram of another alternative embodiment of the display panel provided by the embodiment of the present invention. As Figure 12 shown, the light-emitting area of the first pixel P1 is smaller than that of the conventional pixel P3. In the direction f from the conventional area C to the optical module setting area A, the light-emitting area of the transition pixel P2 gradually decreases. In this embodiment, arranging at least part of the first pixel circuit in the transition area and the light-emitting area of the first pixel being smaller than that of the conventional pixel improves the light transmittance of the optical module setting area. Further, in the direction from the conventional area to the optical module setting area, the light-emitting area of the transition pixel gradually becomes smaller, so as to ensure a gradual transition from the conventional area to the optical module setting area during display, and avoid the display difference between the conventional area and the transition area, or between the optical module setting area and the transition area being recognized by the human eye. This embodiment can improve the display effect. Optionally, the light-emitting area of the transition pixel is less than or equal to that of the conventional pixel.

[0055] In one embodiment, the light-emitting area of the first pixel is smaller than that of the conventional pixel, and in the direction from the conventional area to the optical module setting area, the light-emitting area of the transition pixel first gradually increases and then gradually decreases. While ensuring the improvement of the light transmittance of the optical module setting area, this embodiment can also ensure a gradual transition from the conventional area to the optical module setting area during display, and avoid the display difference between the conventional area and the transition area, or between the optical module setting area and the transition area being recognized by the human eye. Optionally, the light-emitting area of the transition pixel is greater than or equal to that of the conventional pixel.

[0056] In one embodiment, Figure 13 is a partial schematic diagram of another alternative embodiment of the display panel provided by the embodiment of the present invention. As Figure 13As shown, the light-emitting area of the first pixel P1 is the same as that of the conventional pixel P3. In the direction f from the conventional area C to the optical module setting area A, the pixel density of the optical module setting area A gradually decreases. In this embodiment, at least part of the first pixel circuit is first arranged in the transition area, which improves the light transmittance of the optical module setting area. Further, in the direction from the conventional area to the optical module setting area, the pixel density of the optical module setting area gradually decreases. The pixel density in the optical module setting area gradually changes in one direction, and the display in the optical module setting area changes evenly during display, making it difficult for the human eye to recognize the display difference. In addition, by gradually decreasing the pixel density, the number of pixels arranged in the optical module setting area can be further reduced, thereby further improving the light transmittance of the optical module setting area.

[0057] Optionally, in Figure 13 The corresponding embodiment may set the light-emitting area of the transition pixel to be the same as that of the conventional pixel, set the light-emitting areas of all pixels in the display area to be the same, set the pixel density of the transition area to be less than that of the conventional area, and the pixel density of the transition area to be greater than that of the optical module setting area. Thus, in the direction from the conventional area to the optical module setting area, the light-emitting area of the pixel remains unchanged, but the pixel density gradually changes, ensuring a uniform transition during display and improving the display effect.

[0058] Optionally, in Figure 13 The corresponding embodiment may also set the light-emitting area of the transition pixel to be greater than that of the conventional pixel. In the transition area, the transition pixel is set to block at least part of the wiring gap of the first pixel circuit, thereby reducing the diffraction effect of the wiring gap of the first pixel circuit on the light penetrating the display panel and improving the performance of the optical module when applying the under-screen optical module solution. Optionally, it may also be set that in the direction from the conventional area to the optical module setting area, the light-emitting area of the transition pixel first gradually increases and then gradually decreases, realizing that the light-emitting area of the transition pixel is greater than that of the conventional pixel, and the light-emitting area of the transition pixel is greater than that of the first pixel. The transition area is located between the conventional area and the optical module setting area, that is, in the direction from the conventional area to the optical module setting area, the light-emitting area of the pixel first increases and then decreases, gradually changing, which can ensure a uniform transition during display and improve the display effect.

[0059] It should be noted that Figure 13 Only part of the optical module setting area A, transition area B, and conventional area C are schematically shown. For the embodiment in which the transition area B surrounds the optical module setting area A and the conventional area C surrounds the transition area B, it may be the geometric center from the conventional area C to the optical module setting area A, and the pixel density of the optical module setting area A gradually decreases.

[0060] In one embodiment, Figure 14This is a partial schematic diagram of another alternative embodiment of the display panel provided by the embodiments of the present invention. As Figure 14 shown, in the direction from the conventional area C to the optical module setting area A, the pixel density of the transition area B gradually decreases. To clearly illustrate the change in pixel density, the pixel circuits in the display panel are not shown in the figure. On the basis of setting at least part of the first pixel circuits in the transition area to improve the light transmittance of the optical module setting area, this embodiment further sets that in the direction from the conventional area to the optical module setting area, the pixel density of the transition area gradually decreases. The setting of the transition area ensures a gradual transition in display in the direction from the conventional area to the optical module setting area during display, improving the display effect. Optionally, in this embodiment, the pixel density of the transition area can be set to be greater than the pixel density of the optical module setting area, further ensuring a uniform transition in display from the transition area to the optical module setting area.

[0061] In one embodiment, Figure 15 This is a partial schematic diagram of another alternative embodiment of the display panel provided by the embodiments of the present invention. As Figure 15 shown, in the direction from the conventional area C to the optical module setting area A, the pixel density of the transition area B gradually decreases, and in the direction from the conventional pixel area C to the optical module setting area A, the light-emitting area of the transition pixel P2 gradually increases. On the basis of the Figure 14 embodiment, this embodiment further sets that the light-emitting area of the transition pixel gradually increases, which can balance the display brightness difference caused by the gradual decrease in pixel density in the transition area and ensure uniform display brightness in the transition area. In addition, after the light-emitting area of the transition pixel increases, at the position adjacent to the optical module setting area in the transition area, the transition pixel can be used to block the wiring gaps of the first pixel circuit located in the transition area, reducing the diffraction effect of light on the wiring gaps of the first pixel circuit, thereby reducing the influence of light diffraction around the optical module setting area on the performance of the under-screen optical module.

[0062] Based on the same inventive concept, the embodiments of the present invention also provide a display device. Figure 16 This is a schematic diagram of the display device provided by the embodiments of the present invention. As shown in FIG. 16, the display device includes any one of the display panels 100 provided by the embodiments of the present invention. Among them, the specific structure of the display panel 100 has been described in detail in the above embodiments and will not be elaborated here. Of course, Figure 16 the shown display device is only for illustrative purposes, and the display device can be any electronic device with a display function such as a mobile phone, a tablet computer, a laptop computer, an e-reader, or a television.

[0063] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that, The display panel includes: A display area, which includes an optical module setting area, a transition area, and a normal area; The display area includes a plurality of pixels, which include first pixels, transition pixels, and normal pixels. The first pixels are located in the optical module setting area, the transition pixels are located in the transition area, and the normal pixels are located in the normal area; A pixel circuit, which includes a first pixel circuit, a second pixel circuit, and a third pixel circuit. Among them, the second pixel circuit is located in the transition area and is electrically connected to the transition pixels, and the third pixel circuit is located in the normal area and is electrically connected to the normal pixels; The first pixel circuit is electrically connected to the first pixels, and at least part of the transistors of the first pixel circuit are located in the transition area; The pixel includes an anode. In a direction perpendicular to the plane where the display panel is located, at least part of the anodes of the transition pixels overlap with the trace gaps of the first pixel circuit.

2. The display panel according to claim 1, wherein The number of the first pixels in the optical module setting area is N, and the number of the first pixel circuits in the transition area is n, where 0.3 ≤ n / N ≤ 0.

8.

3. The display panel according to claim 1, wherein The anode area of the transition pixels is larger than the anode area of the normal pixels.

4. The display panel according to claim 1, wherein The arrangement positions of the components of the first pixel circuit located in the transition area and the third pixel circuit located in the normal area are different.

5. The display panel according to claim 1, wherein The display panel further includes a first connection trace. The first pixel circuit in the transition area is electrically connected to the anode of the first pixel through the first connection trace; among them, The display panel further includes a data line, and the first connection trace and the data line are arranged on different layers.

6. The display panel according to claim 1, wherein The light-emitting area of the first pixels is smaller than the light-emitting area of the normal pixels.

7. The display panel according to claim 1, wherein The light-emitting area of the transition pixels is smaller than the light-emitting area of the normal pixels.

8. The display panel according to claim 1, wherein The light-emitting area of the transition pixels is equal to the light-emitting area of the normal pixels.

9. A display device, characterized in that, Including the display panel according to any one of claims 1 to 8.

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