Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel comprises a plurality of sub-pixels; the display panel comprises a light-transmitting display area and a main display area located at the periphery of the light-transmitting display area, the main display area further comprises a first pixel circuit and a second pixel circuit, the first pixel circuit is connected with the sub-pixels of the main display area, the second pixel circuit is connected with the sub-pixels of the main display area and at least one sub-pixel of the light-transmitting display area, the first pixel circuit is located on the side of the second pixel circuit away from the light-transmitting display area, so that the side close to the light-transmitting display area is all the second pixel circuit, the length of the anode point lead is reduced, the low gray scale display effect of the light-transmitting display area is optimized without affecting the inherent circuit design of the display panel, the display unevenness of the display panel is improved, and the user experience is improved.

Description

Technical Field

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

[0002] With the continuous development of science and technology, electronic devices are emerging in an endless stream, bringing great convenience to people's daily lives and entertainment. Currently, electronic devices are constantly developing towards larger screens, and in order to increase the screen-to-body ratio of electronic devices and truly achieve a full-screen display, under-display camera technology has attracted much attention.

[0003] However, pixel drive traces of different lengths in the secondary screen area will cause different anode point reset voltages, which will easily lead to color shift in the secondary screen area, greatly reducing the display effect of electronic devices. Summary of the Invention

[0004] In view of this, this application provides a display panel and a display device to solve the problem of uneven display in the light-transmitting display area of ​​the display panel.

[0005] The first aspect of this application provides a display panel including a plurality of sub-pixels; the display panel includes a light-transmitting display area and a main display area located on the periphery of the light-transmitting display area, the main display area further includes a first pixel circuit and a second pixel circuit, the first pixel circuit is connected to the sub-pixels of the main display area, the second pixel circuit is connected to the sub-pixels of the main display area and at least one sub-pixel of the light-transmitting display area, and the first pixel circuit is located on the side of the second pixel circuit away from the light-transmitting display area.

[0006] In one specific embodiment of the first aspect of this application, the main display area includes a peripheral area adjacent to the side of the light-transmitting display area, and a plurality of second pixel circuits are disposed in the peripheral area.

[0007] In one specific embodiment of the first aspect of this application, there are multiple second pixel circuits, which are arranged in a uniform array along the first direction and the second direction. A column of second pixel circuits near the side of the light-transmitting display area is arranged around the light-transmitting display area, and the first direction is perpendicular to the second direction.

[0008] In one specific embodiment of the first aspect of this application, the second pixel circuit is not arranged in the same row as the sub-pixels in the connected light-transmitting display area.

[0009] In a specific embodiment of the first aspect of the present application, within the area on the same side of the central reference line of the light-transmissive display area, multiple sub-pixels are arranged in an array along the first direction and the second direction. The central reference line passes through the central position of the light-transmissive display area and extends along the second direction. The number of sub-pixels in the i-th row of the light-transmissive display area is M, and the number of second pixel circuits in the i-th row in the main display area is N, where i, M, and N are all positive integers. When M < N, M second pixel circuits in the i-th row of second pixel circuits are configured to drive M sub-pixels in the i-th row respectively, and N - M second pixel circuits in the i-th row of second pixel circuits are configured to drive N - M sub-pixels in the (i + 1)-th row respectively. When M = N, N second pixel circuits in the i-th row of second pixel circuits are configured to drive M sub-pixels in the i-th row respectively. When M > N, N second pixel circuits in the i-th row of second pixel circuits are configured to drive N sub-pixels in the i-th row respectively, and M - N second pixel circuits in the (i - 1)-th row or the (i + 1)-th row of second pixel circuits are configured to drive M - N sub-pixels in the i-th row respectively.

[0010] In a specific embodiment of the first aspect of the present application, multiple second pixel circuits are respectively connected to the anodes of multiple sub-pixels through multiple connection lines in a one-to-one correspondence; preferably, the lengths of the longest connection lines in each row of second pixel circuits are the same.

[0011] In a specific embodiment of the first aspect of the present application, the connection lines between the sub-pixels in the light-transmissive display area and the second pixel circuits are located between the sub-pixels in the main display area. <x"

[0012] In a specific embodiment of the first aspect of the present application, the second pixel circuits for driving the sub-pixels of the same color in the light-transmissive display area are arranged in the same row.

[0013] In a specific embodiment of the first aspect of the present application, multiple second pixel circuits are respectively arranged in multiple sub-pixels in the main display area.

[0014] The second aspect of the present application provides a display device, which includes a photosensitive device and the display panel mentioned in the first aspect, and the photosensitive device is correspondingly arranged with the light-transmissive display area of the display panel.

[0015] In the display panel provided by the embodiment of the present application, the first pixel circuit is connected to the sub-pixels in the main display area, the second pixel circuit is connected to the sub-pixels in the main display area and at least one sub-pixel in the light-transmissive display area, and the first pixel circuit in the main display area is located on the side of the second pixel circuit away from the light-transmissive display area, so that the side close to the light-transmissive display area is all second pixel circuits, reducing the length of the anode lead wires. Without affecting the inherent circuit design of the display panel, the low gray-scale display effect of the light-transmissive display area is optimized, and the problem of uneven display of the display panel is improved, thereby improving the user experience. Description of the Drawings

[0016] Figure 1 This is a schematic diagram of the structure of the main display area provided in one embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the planar structure of a display panel provided in one embodiment of this application.

[0018] Figure 3 This is a partial planar structure diagram of a display panel provided in one embodiment of this application.

[0019] Figure 4 This is a top view of a light-transmitting display area provided in one embodiment of this application.

[0020] Figure 5 This is a partial planar structure diagram of a display panel provided in another embodiment of this application.

[0021] Figure 6 This is a partial planar structure diagram of a display panel provided in another embodiment of this application.

[0022] Figure 7 This is a partial planar structure diagram of a display panel provided in another embodiment of this application.

[0023] Figure 8 The diagram shown is a structural schematic of a display device provided in an embodiment of this application. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Currently, the concept of full-screen phones has received widespread attention in the mobile phone market and represents the future direction of mobile phone development. In these full-screen phones, the camera can be hidden so that the front viewable area is almost entirely screen, thus providing users with a superior display experience.

[0026] In the journey towards full-screen displays, navigation keys, earpieces, sensors, and fingerprint recognition modules have all been successfully hidden in the bezels or at the bottom of the screen. Only the front-facing camera remains the final, ultimate obstacle. With the successive releases of full-screen technologies supporting under-display cameras, panel manufacturers have advanced this technology to the experimental stage, with display consistency being one of the most critical and difficult problems to solve.

[0027] Under-display camera (UDC) technology refers to the technology of placing a camera between the display screen and the housing of a display device. In UDC technology, the driving circuit of the light-emitting unit in the area corresponding to the camera in the display screen is located in the non-display area of ​​the display screen. The light-emitting unit in the area corresponding to the camera is connected to the driving circuit in the non-display area through connecting traces, so that the light-emitting unit in the area corresponding to the camera is driven to emit light by the driving circuit in the non-display area. The display area corresponding to the under-display camera is called the UDC area. The UDC area is the light-transmitting area of ​​the camera, which has high requirements for light transmittance and low diffraction effect. To achieve this technology, a one-drive-many or many-drive-many UDC edge-position driving scheme is generally required to achieve uniformity of driving the main and secondary screens, improve productivity and ensure display effect. However, UDC edge-positioning combined with multiple drives will make the anode point traces longer, resulting in uneven display of low grayscale UDC areas.

[0028] In view of this, this application provides a display panel and a display device that, based on the UDC edge-mounted one-drive-multiple or multi-drive-multiple-drive scheme, solves the problem of uneven display in the light-transmitting display area of ​​existing display panels.

[0029] Figure 1 This is a schematic diagram of the structure of the main display area provided in one embodiment of this application. Figure 2 This is a schematic diagram of the planar structure of a display panel provided in one embodiment of this application.

[0030] Figure 3 This is a partial planar structural diagram of a display panel provided in one embodiment of this application. (In conjunction with...) Figures 1 to 3 As shown, the display panel 100 of this embodiment includes a plurality of sub-pixels 3; the display panel 100 includes a light-transmitting display area 11 and a main display area 10 located around the light-transmitting display area 11. The main display area 10 also includes a first pixel circuit 1 and a second pixel circuit 2. The first pixel circuit 1 is connected to the sub-pixels 3 of the main display area 10, and the sub-pixels 3 are arranged in a preset manner within the main display area 10. The second pixel circuit 2 is connected to the sub-pixels 3 of the main display area 10 and at least one sub-pixel 3 in the light-transmitting display area 11. The first pixel circuit 1 is located on the side of the second pixel circuit 2 away from the light-transmitting display area 11. The light-transmitting display area 11 is correspondingly configured with a photosensitive device. In all embodiments of this application, a camera is used as an example for illustration.

[0031] An under-display camera divides the electronic device's display screen into a main screen area and a secondary screen area. The secondary screen area, also known as the light-transmitting display area 11, is where the under-display camera is placed. The sub-pixels 3 of the secondary screen area are positioned within the camera's visual area, thus increasing the screen-to-body ratio of the display panel 100 while simultaneously enabling under-display camera functionality. Furthermore, by placing the second pixel circuit 2 of the light-transmitting display area 11 on the periphery of the secondary screen area and connecting the sub-pixels 3 and the second pixel circuit 2 via connecting lines, pixel circuits are not required within the light-transmitting display area 11. This reduces or eliminates light reflection from pixel circuits, thereby increasing the light transmittance of the light-transmitting display area 11.

[0032] Specifically, the output terminal of the first pixel circuit 1 is electrically connected to the anode of the sub-pixel 3 of the main display area 10, and the first pixel circuit 1 is used to drive the sub-pixel 3 of the main display area 10 to emit light. The output terminal of the second pixel circuit 2 is simultaneously electrically connected to the anode of the sub-pixel 3 of the main display area 10 and the anode of at least one sub-pixel 3 of the light-transmitting display area 11, and the second pixel circuit 2 is used to drive the sub-pixel 3 of the main display area 10 and at least one sub-pixel 3 of the light-transmitting display area 11 to emit light, so that both the main display area 10 and the light-transmitting display area 11 can realize the function of displaying an image. The second pixel circuit 2 uses an indium tin oxide (ITO) conductive pattern layer connected to the sub-pixel 3 of the light-transmitting display area 11.

[0033] The first pixel circuit 1 in the main display area 10 is located on the side of the second pixel circuit 2 away from the light-transmitting display area 11, that is, the second pixel circuit 2 is closer to the light-transmitting display area 11. It can also be understood that the second pixel circuit 2 is within a preset distance range on one side of the light-transmitting display area 11. The preset distance range can be an adjacent area on one side of the light-transmitting display area 11 set according to the actual situation.

[0034] In one embodiment, such as Figure 3 As shown, the first pixel circuit 1 and the second pixel circuit 2 within the main display area 10 are arranged in a 2*4 array. The first pixel circuit 1 is located on the side of the second pixel circuit 2 away from the light-transmitting display area 11. A column of second pixel circuits 2 closest to the light-transmitting display area 11 is electrically connected to the sub-pixels 3 within the light-transmitting display area 11. For each row of second pixel circuits 2, the longest connecting line is the same length, thus avoiding the problem of display differences in the light-transmitting display area 11 caused by different anode point reset voltages.

[0035] Figure 3 The use of multiple rectangles to represent the first pixel circuit 1 and the second pixel circuit 2 does not represent the actual shape of the first pixel circuit 1 and the second pixel circuit 2 in the application. Figure 3The arrangement of some of the first pixel circuits 1 and second pixel circuits 2 in the main display area 10 is only shown in the diagram and does not represent the actual number of first pixel circuits 1 and second pixel circuits 2 in actual applications.

[0036] For example, such as Figure 4 As shown, the sub-pixels 3 within the light-transmitting display area 11 are arranged in a 6*5 matrix. The light-transmitting display area 11 may also include M*N sub-pixels. The values ​​of M and N can be determined according to the size of the light-transmitting display area 11. The number of sub-pixels 3 connected to each second pixel circuit 2 in the light-transmitting display area 11 can be 1, 2, or more than 2, and the second pixel circuit 2 drives the corresponding sub-pixel 3 to emit light.

[0037] For example, such as Figure 5 As shown, the light-transmitting display area 11 is rectangular in shape. Figure 6 As shown, the shape of the light-transmitting display area 11 is square. The shapes of the light-transmitting display area 11 include: rectangle, polygon, circle and ellipse, rounded rectangle, irregular polygon, teardrop shape, U shape, etc.

[0038] For example, the shape of the main display area 10 includes any one of rectangle, polygon, and square.

[0039] For example, the shape of sub-pixel 3 includes any one or more of the following: triangle, square, rectangle, rhombus, trapezoid, parallelogram, pentagon, hexagon, and other polygons. The arrangement of sub-pixels 3 includes X-shape, cross shape, or triangular shape, etc., and this application does not specifically limit this. The layout of sub-pixels 3 includes RGBG, BGRG, RGB, etc.

[0040] For example, in practical applications, the type of photosensitive device is not limited to the camera mentioned above, but may also include, but is not limited to, fingerprint sensors, infrared sensors, laser sensors, etc.

[0041] In some embodiments, the first pixel circuit 1 and the second pixel circuit 2 may be 3T1C, 4T1C, 5T1C, 5T2C, 6T1C or 7T1C structures.

[0042] In some embodiments, the driving mode of the sub-pixel 3 in the main display area 10 is 1-to-1. The driving mode of the light-transmitting display area 11 includes 2-to-2, 4-to-4, 1-to-2, 1-to-4, etc.

[0043] Specifically, the light-transmitting display area 11 is driven by a one-to-many driving scheme, that is, a second pixel circuit 2 is used to drive multiple sub-pixels 3 to emit light. For example, a second pixel circuit 2 is used to drive two or three or even more sub-pixels 3 of the light-transmitting display area 11 to emit light, while other display areas of the display panel 100 can still use a one-to-one driving scheme where one pixel circuit drives one sub-pixel 3 to emit light.

[0044] In the display panel provided in this application embodiment, the first pixel circuit 1 in the main display area 10 is located on the side of the second pixel circuit 2 away from the light-transmitting display area 11, so that the second pixel circuit 2 is closer to the side of the light-transmitting display area 11, reducing the length of the anode point lead. Without affecting the inherent circuit design of the display panel 100, the low grayscale display effect of the light-transmitting display area 11 is optimized, the problem of uneven display of the display panel 100 is improved, and thus the user experience is improved.

[0045] In some embodiments, the main display area 10 includes a peripheral area adjacent to the side of the light-transmitting display area 11, and a plurality of second pixel circuits 2 are disposed in the peripheral area.

[0046] For example, when the light-transmitting display area 11 is circular, the center of the light-transmitting display area 11 is the center of the circle, and the surrounding area can be a ring structure arranged around the light-transmitting display area 11. A plurality of second pixel circuits 2 are arranged in the surrounding area and distributed around the light-transmitting display area 11.

[0047] The display panel provided in this application embodiment arranges multiple second pixel circuits 2 in the peripheral area adjacent to the side of the light-transmitting display area 11, which improves the problem of low position utilization of the pixel circuit arrangement in the existing light-transmitting display area 11, reduces the length of the ITO lead of the anode point, and optimizes the low grayscale display effect of the light-transmitting display area 11.

[0048] In some embodiments, there are multiple second pixel circuits 2, which are arranged in a uniform array along the first direction and the second direction. A row of second pixel circuits 2 near the side of the light-transmitting display area 11 is arranged around the light-transmitting display area 11, with the first direction perpendicular to the second direction.

[0049] Specifically, such as Figure 3 As shown, four second pixel circuits 2 in the main display area 10 extend along the first direction Y and are arranged in a column, while multiple columns of second pixel circuits 2 are arranged along the second direction X. The first direction Y is different from the second direction X. The four second pixel circuits 2 are evenly distributed in the peripheral area of ​​the light-transmitting display area 11, and one column of second pixel circuits 2 is located near the side of the light-transmitting display area 11 and is arranged around the light-transmitting display area 11.

[0050] The arrangement and number of multiple second pixel circuits 2 in the main display area 10 can be set according to the actual situation. This application does not limit this and can set it according to the specific situation, as long as the arrangement density of the second pixel circuits 2 near the side of the light-transmitting display area 11 is uniform.

[0051] In other embodiments of this application, the first direction may intersect the second direction but not be perpendicular to it.

[0052] The display panel provided in this application embodiment makes full use of the side position near the light-transmitting display area 11, so that the second pixel circuit 2 is evenly arranged around the light-transmitting display area 11, thereby improving the low grayscale display effect of the light-transmitting display area 11. At the same time, the pixel density unit (Pixels Per Inch, PPI) of the light-transmitting display area 11 can be arbitrarily designed in size and is not limited by the main screen. While maintaining a simple circuit structure, the pixel size and transmittance of the main display area 10 will not change, thereby further improving the display effect of the full screen.

[0053] In some embodiments, the second pixel circuit 2 is not arranged in the same row as the sub-pixel 3 in the connected light-transmitting display area 11.

[0054] Specifically, such as Figure 3 , Figure 5 and Figure 6 As shown, the second pixel circuits 2 in the main display area 10 are arranged in 2 rows and 2 columns. The column closer to the light-transmitting display area 11 is the first column of second pixel circuits 2, and the column farther from the light-transmitting display area 11 is the second column of second pixel circuits 2. The second pixel circuits 2 in the first row of the second column can connect across rows to the sub-pixels 3 in the second row within the light-transmitting display area 11.

[0055] The display panel provided in this application embodiment has the second pixel circuit 2 and the sub-pixels 3 in the connected light-transmitting display area 11 arranged in different rows. This can further make full and reasonable use of the area around the light-transmitting display area 11, improve the position utilization rate of the pixel circuit arrangement, avoid the occurrence of vacancy, improve the problem of the difference in display of the light-transmitting display area 11 caused by different anode point reset voltages, and further improve the customer experience.

[0056] In some embodiments, within the area on the same side of the central reference line of the light-transmitting display area 11, multiple sub-pixels 3 are arranged in an array along the first direction and the second direction. The central reference line passes through the central position of the light-transmitting display area 11 and extends along the second direction; the number of sub-pixels 3 in the i-th row of the light-transmitting display area 11 is M, and the number of second pixel circuits 2 in the i-th row in the main display area 10 is N, where i, M, and N are all positive integers; when M < N, M of the second pixel circuits 2 in the i-th row of the second pixel circuits 2 are configured to drive M sub-pixels 3 in the i-th row respectively, and N - M of the second pixel circuits 2 in the i-th row of the second pixel circuits 2 are configured to drive N - M sub-pixels 3 in the (i + 1)-th row respectively; when M = N, N of the second pixel circuits 2 in the i-th row of the second pixel circuits 2 are configured to drive M sub-pixels 3 in the i-th row respectively; when M > N, N of the second pixel circuits 2 in the i-th row of the second pixel circuits 2 are configured to drive N sub-pixels 3 in the i-th row respectively, and M - N of the second pixel circuits 2 in the (i - 1)-th row or the (i + 1)-th row of the second pixel circuits 2 are configured to drive M - N sub-pixels 3 in the i-th row respectively.

[0057] Figure 7 This is a schematic diagram of a partial planar structure of a display panel provided in another embodiment of the present application. As Figure 7 shown, the shape of the light-transmitting display area 11 is oval, and the central reference line passes through the central position of the light-transmitting display area 11 and extends along the Y direction. Within the left area of the central reference line, 8 sub-pixels 3 are arranged in an array along the first direction and the second direction. The number of sub-pixels 3 in the first row of the light-transmitting display area 11 is 3, and the number of second pixel circuits 2 in the first row in the main display area 10 is 4, that is, the number of sub-pixels 3 in the first row is less than the number of second pixel circuits 2 in the first row. 3 of the second pixel circuits 2 in the first row of the second pixel circuits 2 are configured to drive 3 sub-pixels 3 in the first row respectively, and 1 of the second pixel circuits 2 in the first row of the second pixel circuits 2 is configured to drive 1 sub-pixel 3 in the second row.

[0058] Continuing as Figure 7 shown, the number of sub-pixels 3 in the second row is 5, and the number of second pixel circuits 2 in the second row in the main display area 10 is 4, that is, the number of sub-pixels 3 in the second row is greater than the number of second pixel circuits 2 in the second row. The second pixel circuits 2 in the second row are configured to drive 4 sub-pixels 3 in the second row respectively. 1 sub-pixel 3 in the second row is driven by 1 of the second pixel circuits 2 in the first row of the second pixel circuits 2.

[0059] The display panel provided by the embodiment of the present application can improve the problem of low position utilization rate of the pixel circuit arrangement in the existing light-transmitting display area 11, and further optimize the low gray-scale display effect of the light-transmitting display area 11 by reducing the length of the anode point ITO lead.

[0060] In some embodiments, multiple second pixel circuits 2 are connected one-to-one with the anodes of multiple sub-pixels 3 via multiple connecting lines.

[0061] Preferably, the longest connecting line in each row of the second pixel circuit 2 has the same length.

[0062] Specifically, such as Figure 7 As shown, any two adjacent connecting lines are parallel to each other, and the connecting line of the second pixel circuit 2 closest to the first pixel circuit 1 is the longest connecting line in each row of the second pixel circuit 2. For example, the distance between the longest connecting lines in the first row of the second pixel circuit 2 is L2, and the distance between the longest connecting lines in the second row of the second pixel circuit 2 is L1, where L2 = L1.

[0063] For example, the connecting wire can be a transparent lead or a metal lead.

[0064] It should be understood that the optimal embodiment is that the longest connecting line in each row of the second pixel circuit 2 has the same length, which is equivalent to shortening the longest connecting line in each row of the second pixel circuit by a certain length. Of course, depending on the actual situation, only the anode traces of one or more rows of the second pixel circuit can be shortened, and this application does not make specific limitations on this.

[0065] In practical applications, multiple second pixel circuits 2 are connected one-to-one with the anodes of multiple sub-pixels 3 through multiple connecting lines. Compared with the problem of excessively long anode traces in the surrounding area of ​​the light-transmitting display area due to the low utilization rate of the pixel circuit arrangement in the prior art, this embodiment makes full and reasonable use of the area around the light-transmitting display area 11 and improves the utilization rate of the pixel circuit arrangement. Furthermore, it sets the length of the longest connecting line in each row of second pixel circuits 2 to be the same, ensuring that the anode traces of multiple rows of second pixel circuits 2 are relatively shortened. Compared with the anode trace length of the existing display panel 100, it is significantly reduced, which can greatly improve the low grayscale mura problem caused by the excessively long ITO traces of the anode.

[0066] In some embodiments, the connection line between the sub-pixel 3 of the light-transmitting display area 11 and the second pixel circuit 2 is located between the sub-pixels 3 of the main display area 10.

[0067] The display panel provided in this application embodiment has a connection line between the sub-pixel 3 of the light-transmitting display area 11 and the second pixel circuit 2 located between the sub-pixel 3 of the main display area 10, which can prevent the drive signal from being written out of place. Since there is no complex winding area, the normal display effect of the light-emitting pixels can be guaranteed.

[0068] In some embodiments, the second pixel circuits 2 used to drive the same color sub-pixels 3 within the light-transmitting display area 11 are arranged in the same row. For example, the light-transmitting display area 11 includes a red sub-pixel row, a green sub-pixel row, and a blue sub-pixel row. The main display area 10 has corresponding first row second pixel circuits, second row second pixel circuits, and third row second pixel circuits. The first row second pixel circuits are arranged in the same row as the red sub-pixel row, the second row second pixel circuits are arranged in the same row as the green sub-pixel row, and the third row second pixel circuits are arranged in the same row as the blue sub-pixel row.

[0069] In some embodiments, a plurality of second pixel circuits 2 are respectively disposed in a plurality of sub-pixels 3 within the main display area 10. For example... Figure 7 As shown, the eight sets of second pixel circuits 2 can be hidden in the sub-pixels 3 of the main display area 10.

[0070] Figure 8 The diagram shown is a structural schematic of a display device provided in an embodiment of this application. Figure 8 As shown, one embodiment of this application also provides a display device. It is understood that the display panel 100 can be applied to a display device, such as a smartphone, tablet, gaming device, augmented reality (AR) device, laptop, desktop computing device, wearable device, or any product or component with a display function. This display device includes the display panel 10010 as in any embodiment of this application, and its technical principles and effects are similar, so they will not be described again here.

[0071] For ease of understanding, the following example uses a mobile phone as the display device. (Reference) Figure 8 In this embodiment, the display device includes a display panel 100 and a photosensitive device 12. The display panel 100 includes an adjacent light-transmitting display area 11 and a main display area 10. The shape of the light-transmitting display area 11 can be circular, rectangular, elliptical, polygonal, irregular, etc., and this application does not limit its shape. The shape of the main display area 10 can also be annular, rectangular, etc., and this application does not limit its shape. The photosensitive device 12 is at least partially corresponding to the light-transmitting display area 11. Exemplarily, the photosensitive device 12 can be disposed below the light-transmitting display area 11, and the photosensitive device 12 is used to emit and / or receive optical signals through the light-transmitting display area 11 of the display panel 100. It should be noted that in this embodiment, "below" refers to the direction from the display screen to the back cover.

[0072] The photosensitive device 12 achieves testing and control based on optical parameters by receiving light. The photosensitive device 12 can be a camera, or it can be an ambient light sensor, an optical distance sensor (e.g., an infrared sensor, laser sensor, proximity sensor, distance sensor, optical distance sensor), a structured light module, a time-of-flight (TOF) lens module, an optical fingerprint sensor, etc.

[0073] For ease of explanation, the embodiments of this application use a camera as an example for illustration. It is understood that the camera area is a high-transparency area, and the driving pixels are placed in the surrounding area. Existing multi-drive, multi-solution solutions result in a large driving area, leading to excessively long ITO leads at the anode point. Furthermore, due to the different lengths of the ITO leads at the anode point, the capacitance varies significantly, causing inconsistencies in the display of the camera area and resulting in a poor user experience. Therefore, for the under-display camera solution, by externalizing the pixel circuits of the pixels in the display area corresponding to the camera to the main display area 10, and by placing the pixel circuits of the sub-pixels 3 relative to the main display area 10 closer to the light-transmitting display area 11, and by adjusting the driving trace length of the sub-pixels 3 within the light-transmitting display area 11, the low grayscale display effect of the light-transmitting display area 11 is optimized without affecting the inherent circuit design of the display panel 100. This improves the uneven display problem of the display panel 100, thereby improving the user experience.

[0074] The display device provided according to any embodiment of this application and the display panel provided in the embodiments of this application belong to the same inventive concept, and have corresponding film layer structures and beneficial effects. Details not described in detail in the embodiments of the display device can be found in the embodiments section of the display panel, and will not be repeated here.

[0075] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0076] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0077] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0078] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0079] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A display panel, characterized in that, It includes multiple sub-pixels; the display panel includes a transmissive display area and a main display area located on the periphery of the transmissive display area, and the shape of the sub-pixels includes any one or more of a triangle, a trapezoid, a parallelogram, a pentagon, a hexagon, and other polygons; The main display area further includes a first pixel circuit and a second pixel circuit. The first pixel circuit is connected to the sub-pixels in the main display area, and the output end of the first pixel circuit is electrically connected to the anodes of the sub-pixels in the main display area. The second pixel circuit is connected to the sub-pixels in the main display area and at least one sub-pixel in the transmissive display area, and the output end of the second pixel circuit is simultaneously electrically connected to the anodes of the sub-pixels in the main display area and the anodes of at least one sub-pixel in the transmissive display area. The first pixel circuit is located on the side of the second pixel circuit away from the transmissive display area; The number of the second pixel circuits is multiple, and the multiple second pixel circuits are arranged in a uniform array along a first direction and a second direction; The main display area includes a peripheral area adjacent to the side of the transmissive display area, and the multiple second pixel circuits are arranged in the peripheral area; within the area on the same side of the central reference line of the transmissive display area, the multiple sub-pixels are arranged in an array along the first direction and the second direction, and the central reference line passes through the center position of the transmissive display area and extends along the second direction; The number of sub-pixels in the i-th row of the transmissive display area is M, and the number of second pixel circuits in the i-th row in the main display area is N, where i, M, and N are all positive integers; When M < N, M of the second pixel circuits in the i-th row of the second pixel circuits are configured to drive M sub-pixels in the i-th row respectively, and N - M of the second pixel circuits in the i-th row of the second pixel circuits are configured to drive N - M sub-pixels in the (i + 1)-th row respectively; When M = N, N of the second pixel circuits in the i-th row of the second pixel circuits are configured to drive M sub-pixels in the i-th row respectively; When M > N, N of the second pixel circuits in the i-th row of the second pixel circuits are configured to drive N sub-pixels in the i-th row respectively, and M - N of the second pixel circuits in the (i - 1)-th row or the (i + 1)-th row of the second pixel circuits are configured to drive M - N sub-pixels in the i-th row respectively.

2. The display panel according to claim 1, characterized in that, A column of second pixel circuits adjacent to the side of the transmissive display area surrounds the transmissive display area, and the first direction is perpendicular to the second direction.

3. The display panel according to claim 2, characterized in that, The multiple second pixel circuits are respectively connected to the anodes of multiple sub-pixels located in the transmissive display area through multiple connection lines in one-to-one correspondence.

4. The display panel according to claim 3, characterized in that, The lengths of the longest connection lines in each row of the second pixel circuits are the same.

5. The display panel according to any one of claims 1 to 4, characterized in that, The connection lines between the sub-pixels in the transmissive display area and the second pixel circuits are located between the sub-pixels in the main display area.

6. The display panel according to any one of claims 1 to 4, characterized in that, The second pixel circuits for driving the sub-pixels of the same color in the transmissive display area are arranged in the same row.

7. The display panel according to any one of claims 1 to 4, characterized in that, The multiple second pixel circuits are respectively arranged in multiple sub-pixels in the main display area.

8. A display device, characterized in that, It includes a photosensitive device and a display panel according to any one of claims 1 to 7, wherein the photosensitive device is disposed corresponding to the light-transmitting display area of ​​the display panel.

Images