Display panel and display device

Abstract

The present application discloses a display panel and a display device, which belong to the field of display technology. The display panel includes: a plurality of first light-emitting devices located in a light-transmitting display area on a substrate, a plurality of first pixel driving circuits in a transition display area, and a plurality of transparent signal lines. Since at least three light-emitting device groups in at least one row of first light-emitting devices correspond one-to-one to at least three rows of first pixel driving circuits distributed around the light-transmitting display area, the first light-emitting devices in a light-emitting device group are electrically connected to the corresponding row of first pixel driving circuits through transparent signal lines, that is, the extension directions of the transparent signal lines connecting the light-emitting devices in at least three light-emitting device groups in a row of first light-emitting devices can be different. Therefore, the length of the transparent signal line connecting the first light-emitting device and the first pixel driving circuit is relatively short. This makes the first light-emitting device respond faster when the light-transmitting display area displays a low-grayscale image, thereby making the display effect of the light-transmitting display area better.

Description

Technical Field

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

[0002] Currently, with the development of display technology, in order to increase the screen-to-body ratio of the display device, the camera in the display device needs to be placed below the display panel, and it needs to be ensured that the area of the display panel facing the camera can still display the image.

[0003] The display panel may include a normal display portion, a transitional display portion, and a translucent display portion. The translucent display portion is provided solely with light-emitting devices, and a pixel driver circuit electrically connected to the light-emitting devices in the translucent display portion may be provided within the transitional display portion. Because the translucent display portion has a lower resolution and is provided solely with light-emitting devices, ambient light can pass through the translucent display portion and enter the camera's light-receiving surface. This ensures that the camera can function properly while maintaining a high screen-to-body ratio.

[0004] However, when the display portion of the light-transmitting display area in the above-mentioned display panel displays a low-grayscale image, the display effect of the light-transmitting display area is poor. Summary of the Invention

[0005] The present invention provides a display panel and a display device. The technical solution is as follows:

[0006] According to a first aspect of the present application, a display panel is provided, comprising:

[0007] A substrate having a light-transmitting display area and a transitional display area located outside the light-transmitting display area,

[0008] A plurality of first light-emitting devices arranged in an array and located in the light-transmitting display area;

[0009] A plurality of first pixel driving circuits arranged in an array and located in the transition display area;

[0010] and, multiple transparent signal lines;

[0011] Each row of the at least one row of the first light-emitting devices includes: M light-emitting device groups, the M light-emitting device groups correspond one-to-one to M rows of first pixel driving circuits, the first light-emitting devices in one of the light-emitting device groups are electrically connected to the corresponding row of first pixel driving circuits through the transparent signal line, and the M rows of first pixel driving circuits are distributed around the light-transmitting display area;

[0012] The M is an integer greater than or equal to 3.

[0013] Optionally, the light-transmitting display area has N first sub-areas, and the transitional display area has N second sub-areas distributed around the light-transmitting display area, where N is greater than or equal to M.

[0014] The M light-emitting device groups are respectively located in the M first sub-partitions, the M rows of first pixel driving circuits are respectively located in the M second sub-partitions, and a first sub-partition where the light-emitting device group is located intersects with the second sub-partition where the corresponding row of first pixel driving circuits is located.

[0015] Optionally, the areas of the N first sub-regions are all the same.

[0016] Optionally, N is equal to 4, and the shape of the first sub-partition is a triangle or a fan.

[0017] Optionally, the N first sub-partitions correspond one-to-one to the N second sub-partitions, and the first sub-partitions overlap with the corresponding second sub-partitions;

[0018] Part of the transparent signal line is located in one of the first sub-regions and electrically connected to the first light-emitting device in the first sub-region, and the other part is located in the corresponding second sub-region and electrically connected to the first pixel driving circuit in the second sub-region.

[0019] Optionally, the display panel further comprises: a plurality of second pixel driving circuits arranged in an array and a plurality of second light-emitting devices arranged in an array, located in the transition display area, wherein the plurality of second pixel driving circuits are electrically connected to the plurality of second light-emitting devices in a one-to-one correspondence;

[0020] The arrangement density of the plurality of second light-emitting devices is the same as the arrangement density of the plurality of first light-emitting elements.

[0021] Optionally, the display panel further includes: a plurality of first signal lines and a plurality of first adapter lines, wherein the first signal lines are electrically connected to a column of second light-emitting devices via a column of second pixel driving circuits, and the first adapter lines are electrically connected to a column of first light-emitting devices via a column of first pixel driving circuits and the plurality of transparent signal lines;

[0022] The plurality of first signal lines are electrically connected to the plurality of first adapter lines in a one-to-one correspondence, and the column of second light-emitting devices connected to one of the first signal lines and the column of first light-emitting devices connected to a corresponding one of the first adapter lines are arranged in a row.

[0023] Optionally, the first adapter line includes: a connecting line for electrically connecting to the first pixel driving circuit, and a jumper line electrically connected to the connecting line, and the first adapter line is electrically connected to the corresponding first signal line through the jumper line;

[0024] The connecting line and the jumper line are arranged in different layers, and the connecting line and the first signal line are arranged in the same layer.

[0025] Optionally, the display panel further includes: a plurality of second signal lines and a plurality of second adapter lines, wherein the second signal lines are electrically connected to a row of second light-emitting devices through a row of second pixel driving circuits, and the second adapter lines are electrically connected to a row of second light-emitting devices through a row of first pixel driving circuits and the plurality of transparent signal lines;

[0026] The plurality of second signal lines are electrically connected to the plurality of second adapter lines in a one-to-one correspondence, and the row of second light-emitting devices connected to one second signal line and the row of first light-emitting devices connected to a corresponding second adapter line are arranged in a row.

[0027] Optionally, the extension direction of the second signal line is parallel to the extension direction of the second adapter line, and the display panel further includes: a gate drive GOA circuit, and the second signal line is electrically connected to the corresponding second adapter line through the same gate drive GOA circuit.

[0028] Optionally, the plurality of first pixel driving circuits and the plurality of second pixel driving circuits are evenly distributed in the transition display area, and the plurality of first pixel driving circuits and the plurality of second pixel driving circuits are staggered.

[0029] Optionally, in a row direction of the second pixel driving circuits, the ratio of the number of the first pixel driving circuits to the number of the second pixel driving circuits is 4:1;

[0030] In the column direction of the second pixel driving circuits, the ratio of the number of the first pixel driving circuits to the number of the second pixel driving circuits is 2:1.

[0031] Optionally, the substrate further comprises a normal display area located outside the transition display area, and the display panel further comprises: a plurality of third pixel driving circuits arranged in an array and a plurality of third light-emitting devices arranged in an array located within the normal display area, wherein the plurality of third pixel driving circuits are electrically connected to the plurality of third light-emitting devices in a one-to-one correspondence;

[0032] The orthographic projection areas of the first pixel driving circuit, the second pixel driving circuit, and the third pixel driving circuit on the substrate are all the same.

[0033] Optionally, the display panel further includes: a plurality of virtual pixel driving circuits, and the plurality of virtual pixel driving circuits, the first pixel driving circuit, the second pixel driving circuit and the third pixel driving circuit are evenly distributed on the substrate.

[0034] According to another aspect of the present application, a display device is provided, comprising: a photosensor and the above-mentioned display panel, wherein the orthographic projection of the light-receiving surface of the photosensor on the substrate is located within the light-transmitting display area.

[0035] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0036] A display panel is provided, comprising: a plurality of first light-emitting devices within a light-transmitting display region on a substrate, a plurality of first pixel drive circuits within a transitional display region, and a plurality of transparent signal lines. At least three light-emitting device groups within at least one row of first light-emitting devices correspond one-to-one with at least three rows of first pixel drive circuits distributed around the light-transmitting display region. The first light-emitting devices within a light-emitting device group are electrically connected to the corresponding row of first pixel drive circuits via transparent signal lines. This means that the transparent signal lines connecting the light-emitting devices within at least three light-emitting device groups within a row of first light-emitting devices can extend in different directions. Consequently, the transparent signal lines connecting the first light-emitting devices and the first pixel drive circuits are relatively short. This allows the first light-emitting devices to respond more quickly when displaying low-grayscale images in the light-transmitting display region, thereby improving the display quality of the light-transmitting display region. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0038] Figure 1 This is a structural diagram of a common display panel.

[0039] Figure 2 yes Figure 1 A partial enlarged view of the first display area in the display panel is shown;

[0040] Figure 3 yes Figure 1 A partial enlarged schematic diagram of a transition display area in a display panel is shown;

[0041] Figure 4 is a top view of a display panel provided in an embodiment of the present application;

[0042] Figure 5 yes Figure 4 A schematic diagram of a local pixel arrangement of a display panel is shown;

[0043] Figure 6 yes Figure 4 An enlarged schematic diagram of a light-transmitting display area and a transitional display area of a display panel is shown;

[0044] Figure 7 yes Figure 4 A partial enlarged schematic diagram of a transition display area in a display panel is shown;

[0045] Figure 8 This is a compressed schematic diagram of a pixel driving circuit provided by an embodiment of the present application;

[0046] Figure 9 This is a schematic structural diagram of another display panel provided in an embodiment of the present application.

[0047] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0049] Currently, to increase the screen-to-body ratio of a display device, the display panel in the display device can be designed as a partially transparent display panel. For example, the display panel may include a normal display area, a transitional display area, and a translucent display area. Pixels are disposed within the non-translucent normal display area, the transitional display area, and the translucent display area, enabling the non-translucent normal display area, the transitional display area, and the translucent display area to all display images.

[0050] The light-sensitive sensor in the display device (such as the image sensor, infrared sensor, or distance sensor in a camera) is located on the side opposite the display surface of the display panel, and the orthographic projection of the light-sensitive surface of the light-sensitive sensor on the display panel is located within the light-transmitting display area. The pixel density (Pixels Per Inch; PPI) of the normal display area is usually higher than the PPI of the light-transmitting display area, so that ambient light can pass through the light-transmitting display area and enter the light-receiving surface of the light-sensitive sensor. In this way, the light-sensitive sensor can be guaranteed to operate normally even when the screen-to-body ratio of the display device is high.

[0051] Please refer to Figure 1 , Figure 1This is a schematic diagram of the structure of a common display panel. The display panel includes a first display area 11 and a second display area 12 located outside the first display area 11. The resolution of the first display area 11 is lower than that of the second display area 12. The first display area 11 may include a translucent display area 111 and a non-translucent transitional display area 112.

[0052] like Figure 2 As shown, Figure 2 yes Figure 1 FIG. 1 is a partial enlarged view of the first display area in the display panel. Only the first light emitting device 1111 ( Figure 2 The block E1 shown in the figure represents a first light emitting device), and a first pixel driving circuit 1121 (electrically connected to the first light emitting device) may be provided in the transition display area 112. Figure 2 The block D1 shown represents a first pixel driving circuit. Each first light emitting device 1111 and the corresponding first pixel driving circuit 1121 electrically connected in the same row form a first pixel unit. The first display area 11 includes not only a plurality of first pixel units but also a plurality of second pixel units located in the transition display area 112 ( Figure 2 The block P2 shown represents a second pixel unit.) Since the resolution of the light-transmitting display area 111 is relatively low and only the light-emitting device 1111 is provided in the light-transmitting display area 111, ambient light can pass through the light-transmitting display area and enter the light-receiving surface of the camera.

[0053] In order to further improve the transmittance of the light-transmitting display area 111 , a transparent signal line 13 is required to connect the first light-emitting device 1111 in the light-transmitting display area 111 and the first pixel driving circuit 1121 in the transition display area 112 .

[0054] Please refer to Figure 3 , Figure 3 yes Figure 1 The second pixel unit in the transition display area 112 includes a second light emitting device 1122 ( Figure 3 The block E2 shown represents a second light emitting device) and a second pixel driving circuit 1123 ( Figure 3 The block D2 shown represents a second pixel driving circuit. It should be noted that, in order to facilitate understanding and more clearly represent the corresponding relationship between the second light emitting device 1122 and the second pixel driving circuit 1122, Figure 3 The second light emitting device 1122 and the second pixel driving circuit 1122 do not overlap. In actual situations, the orthographic projections of the second light emitting device 1122 and the second pixel driving circuit 1122 on the substrate of the display panel at least partially overlap.

[0055] The first pixel driving circuit 1121 and the second pixel driving circuit 1123 are staggered and evenly distributed in the transition display area 112 , and the second light emitting devices 1122 are evenly distributed in the transition display area 112 .

[0056] It can be understood that by adjusting the structure of the first pixel driving circuit 1121 and the second pixel driving circuit 1123 in the transition display area 112 so that they are narrowed in the horizontal direction, while the vertical height remains unchanged, it is equivalent to compressing the pixel arrangement of the first pixel driving circuit 1121 and the second pixel driving circuit 1123 in the horizontal direction without changing the structure and position of the second light-emitting device 1122. In this way, more pixel driving circuits can be distributed in the original position of the transition display area 112. The second light-emitting device 1122 in the transition display area 112 can also be connected to the corresponding second pixel driving circuit 1123, thereby ensuring that the second light-emitting device 1122 located at the original position displays normally. In the compressed pixel circuit, the pixel driving circuit that is not connected to the second light-emitting device 1122 belongs to the first pixel driving circuit 1121 and can be electrically connected to the first light-emitting device in the light-transmitting display area through a transparent signal line.

[0057] However, in current display panels, the first light-emitting devices 1111 within the light-transmitting display area 111 are typically electrically connected to the first pixel driving circuits 1121 within the non-transmitting transitional display areas 112 located on the left and right sides of the light-transmitting display area 111. This results in a large number of light-emitting devices in at least one row of first light-emitting devices 1111 within the light-transmitting display area 111 being connected to the first pixel driving circuits 1121 in the same row outside the light-transmitting display area 111. This causes some of the first light-emitting devices 1111 to need to be connected to the first pixel driving circuits 1121 that are farther away, further resulting in a longer portion of the transparent signal lines 13 used to connect the first light-emitting devices 1111 and the first pixel driving circuits 1121. When the transparent signal lines 13 are longer, the parasitic capacitance on the transparent signal lines 13 is larger. Therefore, the driving current emitted by the first pixel driving circuit 1121 needs to charge the transparent signal lines 13 before the first light-emitting devices 1111 can be activated. Since the driving current of low grayscale is relatively small, the charging time of the transparent signal line 13 is relatively long, and the response rate of the low grayscale image is relatively low, which in turn leads to poor display effect of the light-transmitting display area 111 .

[0058] The embodiments of the present application provide a display panel and a display device, which can solve the problems existing in the above-mentioned related technologies.

[0059] Figure 4 is a top view of a display panel provided in an embodiment of the present application, Figure 5 yes Figure 4The display panel may include: a substrate 21, and a plurality of first light emitting devices 22 (such as Figure 5 The box E1 shown in FIG. 1 represents a first light emitting device), a plurality of first pixel driving circuits 23 (such as Figure 5 The block D1 shown represents a first pixel driving circuit), and a plurality of transparent signal lines 24.

[0060] The substrate 21 may have a light-transmitting display area 211 and a transitional display area 212 located outside the light-transmitting display area 211. A plurality of first light-emitting devices 22 arranged in an array are located within the light-transmitting display area 211; a plurality of first pixel driving circuits 23 arranged in an array are located within the transitional display area 212.

[0061] It should be noted that the number of first pixel driving circuits 23 in the transitional display area 212 is greater than or equal to the number of first light-emitting devices 22 in the light-transmitting display area 211. Each first light-emitting device 22 can be electrically connected to one first pixel driving circuit 23 via a transparent signal line 24. In this way, each first pixel driving circuit 23 can drive one first light-emitting device 22 to emit light.

[0062] In the embodiment of the present application, the first light-emitting device 22 may be an organic light-emitting diode (OLED). It may include an anode, a light-emitting layer, and a cathode stacked vertically and away from the substrate 21. The anode in the first light-emitting device 22 may be electrically connected to the first pixel driving circuit 23.

[0063] Each row of the first light emitting devices 22 in at least one row of the first light emitting devices 22 includes: M light emitting device groups (for ease of understanding, Figure 5 In the figure, three light-emitting device groups 22a, 22b, and 22c are used as an example. Each row of first light-emitting devices 22 may also include more light-emitting device groups, which is not limited in the embodiments of the present application. M light-emitting device groups (22a, 22b, and 22c) correspond one-to-one to M rows of first pixel driving circuits 23. The first light-emitting devices 22 in a light-emitting device group are electrically connected to the corresponding row of first pixel driving circuits 23 through transparent signal lines 24. The M rows of first pixel driving circuits 23 are distributed around the light-transmitting display area 211. Different light-emitting device groups in a row of first light-emitting devices 22 may correspond to different rows of first pixel driving circuits. M is an integer greater than or equal to 3.

[0064] In this way, the number of first light-emitting devices 22 in at least one row located in the transparent display area 211 that are connected to the same row of first pixel driving circuits 23 located outside the transparent display area 211 can be reduced, so that some first light-emitting devices 22 can be connected to the first pixel driving circuit 23 that is closer, thereby making the length of some transparent signal lines 24 used to connect the first light-emitting devices 22 and the first pixel driving circuit 23 shorter, so as to reduce the parasitic capacitance on the transparent signal line 13, thereby improving the response rate of the transparent display area 211 when displaying low grayscale images, and thus improving the display effect of the transparent display area 211.

[0065] In summary, an embodiment of the present application provides a display panel comprising: a plurality of first light-emitting devices located within a light-transmitting display region on a substrate, a plurality of first pixel drive circuits within a transitional display region, and a plurality of transparent signal lines. Since at least three light-emitting device groups in at least one row of first light-emitting devices correspond one-to-one to at least three rows of first pixel drive circuits distributed around the light-transmitting display region, the first light-emitting devices in a light-emitting device group are electrically connected to the corresponding row of first pixel drive circuits via transparent signal lines. That is, the transparent signal lines connecting the light-emitting devices in at least three light-emitting device groups within a row of first light-emitting devices can extend in different directions. Therefore, the length of the transparent signal lines connecting the first light-emitting devices and the first pixel drive circuits is relatively short. This allows the first light-emitting devices to respond more quickly when displaying low-grayscale images in the light-transmitting display region, thereby improving the display effect of the light-transmitting display region.

[0066] Optional, such as Figure 5 As shown, the light-transmitting display area 211 has N first sub-areas 2111 , and the transition display area 212 has N second sub-areas 2121 distributed around the light-transmitting display area 211 , where N is greater than or equal to M.

[0067] The M light-emitting device groups are respectively located in the M first sub-areas 2111, and the M rows of first pixel driving circuits 23 are respectively located in the M second sub-areas 2121. The first sub-area 2111 where a light-emitting device group is located intersects with the second sub-area 2121 where the corresponding row of first pixel driving circuits 23 is located. In this way, the M light-emitting device groups located in different first sub-areas 2111 can be connected to the first pixel driving circuits 23 located in different second sub-areas 2121.

[0068] It should be noted that in Figure 5 In the embodiment of the present application, the light-transmitting display area 211 is square as an example for schematic illustration. In other optional implementations, the light-transmitting display area 211 can also be circular, hexagonal, etc., and the embodiment of the present application is not limited to this.

[0069] Optional, such as Figure 5As shown, the areas of the N first sub-regions 2111 are all the same. This allows the number of first light-emitting devices 22 in the N first sub-regions 2111 to be substantially the same, thereby minimizing the difference in length of the transparent connecting lines 24 corresponding to the first light-emitting devices 22 in the N first sub-regions 2111. This further allows for uniform brightness of the first light-emitting devices 22 in the translucent display area 211, thereby improving the display effect of the translucent display area 211.

[0070] Optionally, N is equal to 4, and the shape of the first sub-area 2111 can be triangular or sector-shaped. When the light-transmitting display area 211 is rectangular, the shape of the first sub-area 2111 can be triangular; when the light-transmitting display area 211 is circular, the shape of the first sub-area 2111 can be sector-shaped. In other words, the N first sub-areas 2111 can be arranged around the center of the light-transmitting display area 211, which can be the intersection of two diagonals of the light-transmitting display area 211 or the center of the circle.

[0071] Optionally, the N first sub-partitions 2111 correspond one-to-one to the N second sub-partitions 2121, and the first sub-partitions 2111 intersect with the corresponding second sub-partitions 2121. That is, at least a portion of the edge of a first sub-partition 2111 overlaps with at least a portion of the edge of the corresponding second sub-partition 2121, and the first sub-partition 2111 and the corresponding second sub-partition 2121 are two adjacent areas.

[0072] Part of the transparent signal line 24 is located in a first sub-region 2111 and electrically connected to the first light-emitting device 22 in the first sub-region 2111 , and the other part is located in the corresponding second sub-region 2121 and electrically connected to the first pixel driving circuit 23 in the second sub-region 2121 .

[0073] Optional, such as Figure 6 As shown, Figure 6 yes Figure 4 The display panel further includes: a plurality of second pixel driving circuits 25 ( Figure 6 The block D2 shown represents a second pixel driving circuit) and a plurality of second light emitting devices ( Figure 6 (not shown), multiple second pixel driving circuits 25 are electrically connected to the multiple second light-emitting devices in a one-to-one correspondence. The second pixel driving circuits 25 are used to drive the second light-emitting devices to emit light. The arrangement density of the multiple second light-emitting devices is the same as the arrangement density of the multiple first light-emitting devices 22. This ensures that the display effects of the transitional display area 212 and the light-transmitting display area 211 are similar.

[0074] Please refer to Figure 7 , Figure 7 yes Figure 4 The second pixel unit in the transition display area 212 includes a second light emitting device 26 ( Figure 7 The block E2 shown represents a second light emitting device) and a second pixel driving circuit 25 ( Figure 7 The block D2 shown represents a second pixel driving circuit. It should be noted that, in order to facilitate understanding and more clearly represent the corresponding relationship between the second light emitting device 26 and the second pixel driving circuit 25, Figure 6 The second light emitting device 26 and the second pixel driving circuit 25 do not overlap, and Figure 7 Only a portion of the second light emitting device 26 is shown in the figure. In actual situations, the orthographic projections of the second light emitting device 26 and the second pixel driving circuit 25 on the substrate of the display panel at least partially overlap.

[0075] In the embodiments of this application, Figure 7 As shown, the first pixel driving circuit 23 and the second pixel driving circuit 25 are staggered and evenly distributed in the transition display area 212 , and the second light emitting devices 26 are evenly distributed in the transition display area 112 .

[0076] It can be understood that, first, by adjusting the structure of the first pixel driver circuit 23 and the second pixel driver circuit 25 in the transition display area 212 so that they are narrowed in the horizontal direction (the row direction of the second pixel driver circuit) while maintaining the vertical height, this is equivalent to compressing the pixel arrangement of the first pixel driver circuit 23 and the second pixel driver circuit 25 in the horizontal direction without changing the structure and position of the second light-emitting device. Secondly, by adjusting the structure of the first pixel driver circuit 23 and the second pixel driver circuit 25 in the transition display area 212 so that they are narrowed in the vertical direction (column direction) while maintaining the horizontal width, this is equivalent to compressing the pixel arrangement of the first pixel driver circuit 23 and the second pixel driver circuit 25 in the vertical direction without changing the structure and position of the second light-emitting device. In this way, more pixel driver circuits can be distributed in the original position of the transition display area 212. The second light-emitting device 26 in the transition display area 212 can also be connected to the corresponding second pixel driver circuit 25, thereby ensuring that the second light-emitting device 26 in the original position displays normally. In the compressed pixel circuit, at least part of the pixel driving circuit that is not connected to the second light emitting device 26 belongs to the first pixel driving circuit 23 and can be electrically connected to the first light emitting device in the light-transmitting display area through a transparent signal line.

[0077] For example, Figure 8 As shown, Figure 8This is a schematic diagram of a pixel driving circuit compression provided by an embodiment of the present application. In the same area on the substrate, before compression, 8 pixel driving circuits can be distributed in the area, while after pixel driving circuit compression, 15 pixel driving circuits can be distributed in the area.

[0078] In the embodiment of the present application, the second light-emitting device may be an OLED light-emitting device.

[0079] Optional, such as Figure 6 As shown, the display panel also includes: multiple first signal lines 27 and multiple first adapter lines 28, the first signal lines 27 are electrically connected to a column of second light-emitting devices through a column of second pixel driving circuits 25, and the first adapter lines 28 are electrically connected to a column of first light-emitting devices 22 through a column of first pixel driving circuits 23 and multiple transparent signal lines 24.

[0080] The plurality of first signal lines 27 are electrically connected to the plurality of first adapter lines 28 in a one-to-one correspondence, and a column of second light-emitting devices connected to a first signal line 27 and a column of first light-emitting devices 22 connected to a corresponding first adapter line 28 are arranged in a column. The plurality of first signal lines 27 can all be located outside the light-transmitting display area 211. For example, a first signal line 27 can be electrically connected to a column of first pixel driving circuits 23.

[0081] Optionally, the first signal line 27 may also be electrically connected to the at least one first light-emitting device 22 through at least one first pixel driving circuit 23 and at least one transparent signal line 24 .

[0082] It should be noted that the first signal line 27 in the embodiment of the present application can be a data line (Data) or a power signal line (VDD). The first signal line 27 can provide a driving signal to the first light-emitting device 22 through the first pixel driving circuit 23, causing the first light-emitting device 22 to emit light. The first signal line 27 can also provide a driving signal to the second light-emitting device located in the same column as the first light-emitting device 22. In other words, the first signal line 27 can provide a driving signal to the first light-emitting device 22 and the second light-emitting device located in the same column.

[0083] The first signal line 27 may be a signal line whose extension direction overlaps with the light-transmitting display area 211. The display panel also includes a third signal line, which is parallel to the extension direction of the first signal line and does not overlap with the light-transmitting display area. The third signal line can provide a driving signal for the second light-emitting device.

[0084] The first light-emitting device 22 connected via the first signal line 27 and the first light-emitting device 22 connected via the first adapter line 28 belong to two different light-emitting device groups. That is, the first light-emitting device 22 directly connected to the first signal line 27 via the transparent signal line 24 and the first pixel driving circuit 22 can belong to one light-emitting device group 22b. The first light-emitting device 22 connected to the first signal line 27 via the transparent signal line 24, the first pixel driving circuit 22, and the first adapter line 28 can belong to another light-emitting device group 22a.

[0085] The first signal lines respectively connected to the first light-emitting devices in the two light-emitting device groups are two different first signal lines.

[0086] The first adapter line 28 may include a connection line 281 for electrically connecting to the first pixel driving circuit 22 and a jumper line 282 electrically connected to the connection line 281 . The first adapter line 28 is electrically connected to the corresponding first signal line 27 via the jumper line 282 .

[0087] The connecting wires 281 and the jumper wires 282 are arranged on different layers, and the connecting wires 281 can be arranged on the same layer as the first signal wires 27. This prevents the jumper wires 282 in the first adapter wires 28 from crossing and short-circuiting with other first signal wires 27 at their intersections. For example, to reduce the complexity of display panel manufacturing, the jumper wires 282 can be arranged on the same layer as the second signal wires 29 described later.

[0088] Optionally, the display panel also includes: multiple second signal lines 29 and multiple second adapter lines 31, the second signal lines 29 are electrically connected to a row of second light-emitting devices 26 through a row of second pixel driving circuits 25, and the second adapter lines 31 are electrically connected to a row of second light-emitting devices through a row of first pixel driving circuits 23 and multiple transparent signal lines 24.

[0089] The plurality of second signal lines 29 are electrically connected to the plurality of second adapter lines 31 in a one-to-one correspondence, and a row of second light-emitting devices connected to a second signal line 29 is arranged in a row with a row of first light-emitting devices 22 connected to a corresponding second adapter line 31. In other words, the second signal line 29 can provide driving signals to the first light-emitting devices 22 and the second light-emitting devices in the same row.

[0090] It should be noted that the second signal line 29 in the embodiment of the present application can be at least one of a gate drive signal line (Gate), a reset control line (RST), an initial signal line (Vinit), and an enable signal line (EM). The second signal line 29 can provide a drive signal to the first light-emitting device 22 through the first pixel driving circuit 23, causing the first light-emitting device 22 to emit light.

[0091] Optionally, the second signal line 29 may also be electrically connected to the at least one first light-emitting device 22 through the at least one first pixel driving circuit 23 and the at least one transparent signal line 24 .

[0092] The second signal line 29 can also be electrically connected to at least one first light-emitting device 22 via at least one first pixel driving circuit 23 and at least one transparent signal line 24. The first light-emitting device 22 connected via the second signal line 29 and the first light-emitting device connected via the second adapter line 31 belong to two different light-emitting device groups. That is, the first light-emitting device 22 directly connected to the second signal line 29 via the transparent signal line 24 and the first pixel driving circuit 22 can belong to one light-emitting device group 22c. The first light-emitting device 22 connected to the second signal line 29 via the transparent signal line 24, the first pixel driving circuit 22, and the second adapter line 31 can belong to another light-emitting device group 22b.

[0093] In this way, the first light emitting device and the second light emitting device in the same row or the same column on the display panel can receive the same control signal at the same time, thereby improving the uniformity of the display panel.

[0094] Optional, such as Figure 9 As shown, Figure 9 2 is a schematic diagram of another display panel structure provided by an embodiment of the present application. The extension direction of the second signal line 29 is parallel to the extension direction of the second adapter line 31.

[0095] Furthermore, the display panel further includes a gate drive GOA circuit 32 , and the second signal lines 29 are electrically connected to the corresponding second adapter lines 31 via the same gate drive GOA circuit 32 .

[0096] The display panel may include a display area and a non-display area 214 located outside the display area, and the gate drive GOA circuit is located in the non-display area 214. In this way, the first light-emitting device and the second light-emitting device in the same row on the display panel can simultaneously receive the same gate drive GOA control signal, thereby improving the uniformity of the display panel.

[0097] Optional, such as Figure 6 As shown, the plurality of first pixel driving circuits 23 and the plurality of second pixel driving circuits 25 are evenly distributed in the transition display area 212 , and the plurality of first pixel driving circuits 23 and the plurality of second pixel driving circuits 25 are staggered.

[0098] Optionally, in the row direction of the second pixel driving circuits 25, the ratio of the number of the first pixel driving circuits 23 to the second pixel driving circuits 25 is 4:1. In the column direction of the second pixel driving circuits 25, the ratio of the number of the first pixel driving circuits 23 to the second pixel driving circuits 25 is 2:1. Compared to the related art, in the row direction of the second pixel driving circuits, the ratio of the number of the first pixel driving circuits to the second pixel driving circuits is 8:1. In the embodiment of the present application, more first pixel driving circuits can be provided in an area of the same size on the substrate, based on which the length of the transparent signal line can be further reduced.

[0099] Optional, such as Figure 4 As shown, the substrate 21 also has a normal display area 213 located outside the transition display area 212, and the display panel also includes: a plurality of third pixel driving circuits arranged in an array and a plurality of third light-emitting devices arranged in an array located in the normal display area 213, and the plurality of third pixel driving circuits are electrically connected to the plurality of third light-emitting devices in a one-to-one correspondence.

[0100] The orthographic projection areas of the first pixel driving circuit, the second pixel driving circuit, and the third pixel driving circuit on the substrate are all the same, thereby reducing the difficulty of manufacturing the display panel.

[0101] Optionally, the display panel further includes: multiple virtual pixel driving circuits, wherein the multiple virtual pixel driving circuits, the first pixel driving circuit, the second pixel driving circuit, and the third pixel driving circuit are evenly distributed on the substrate. The virtual pixel circuit can refer to a pixel driving circuit located in connection with any light-emitting device. The multiple first light-emitting devices, the second light-emitting devices, and the third light-emitting devices are also evenly distributed on the substrate. This can further reduce the manufacturing difficulty of the display panel.

[0102] In summary, an embodiment of the present application provides a display panel comprising: a plurality of first light-emitting devices located within a light-transmitting display region on a substrate, a plurality of first pixel drive circuits within a transitional display region, and a plurality of transparent signal lines. Since at least three light-emitting device groups in at least one row of first light-emitting devices correspond one-to-one to at least three rows of first pixel drive circuits distributed around the light-transmitting display region, the first light-emitting devices in a light-emitting device group are electrically connected to the corresponding row of first pixel drive circuits via transparent signal lines. That is, the transparent signal lines connecting the light-emitting devices in at least three light-emitting device groups within a row of first light-emitting devices can extend in different directions. Therefore, the length of the transparent signal lines connecting the first light-emitting devices and the first pixel drive circuits is relatively short. This allows the first light-emitting devices to respond more quickly when displaying low-grayscale images in the light-transmitting display region, thereby improving the display effect of the light-transmitting display region.

[0103] The embodiment of the present application further provides a display device, which can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or the like.

[0104] The display device includes: a photosensitive sensor and a display panel. The photosensitive sensor can be an image sensor, a light sensor, or a distance sensor in a camera. The photosensitive sensor is located on the side opposite to the display surface of the display panel. The orthographic projection of the photosensitive surface of the photosensitive sensor on the display panel is located within the light-transmitting display area. The structure of the display panel can be the display panel in the above embodiment, for example, the display panel can be Figure 4 、 Figure 5 、 Figure 6 or Figure 9 The display panel is shown.

[0105] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0106] In this application, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0107] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: The display panel includes: A substrate having a light-transmitting display area and a transitional display area located outside the light-transmitting display area, A plurality of first light-emitting devices arranged in an array and located in the light-transmitting display area; A plurality of first pixel driving circuits arranged in an array and located in the transition display area; and, multiple transparent signal lines; Each row of the first light-emitting devices in at least one row includes: M light-emitting device groups, the M light-emitting device groups corresponding one-to-one to M rows of first pixel driving circuits, the first light-emitting devices in one of the light-emitting device groups being electrically connected to the corresponding row of first pixel driving circuits via the transparent signal line, the M rows of first pixel driving circuits being distributed around the light-transmitting display area; and the number of the first pixel driving circuits in the transitional display area is greater than or equal to the number of the first light-emitting devices in the light-transmitting display area; M is an integer greater than or equal to 3; The light-transmitting display area has N first sub-areas, and the transitional display area has N second sub-areas distributed around the light-transmitting display area, where N is greater than or equal to M; The M light-emitting device groups are respectively located in the M first sub-partitions, the M rows of first pixel driving circuits are respectively located in the M second sub-partitions, and a first sub-partition where the light-emitting device group is located intersects with the second sub-partition where the corresponding row of first pixel driving circuits is located.

2. The display panel according to claim 1, wherein: The areas of the N first sub-regions are all the same.

3. The display panel according to claim 2, wherein: The N is equal to 4, and the shape of the first sub-partition is a triangle or a fan.

4. The display panel according to any one of claims 1 to 3, characterized in that: The N first sub-partitions correspond one-to-one to the N second sub-partitions, and the first sub-partitions overlap with the corresponding second sub-partitions; Part of the transparent signal line is located in one of the first sub-regions and electrically connected to the first light-emitting device in the first sub-region, and the other part is located in the corresponding second sub-region and electrically connected to the first pixel driving circuit in the second sub-region.

5. The display panel according to any one of claims 1 to 3, characterized in that: The display panel further includes: a plurality of second pixel driving circuits arranged in an array and a plurality of second light emitting devices arranged in an array located in the transition display area, wherein the plurality of second pixel driving circuits are electrically connected to the plurality of second light emitting devices in a one-to-one correspondence; The arrangement density of the plurality of second light-emitting devices is the same as the arrangement density of the plurality of first light-emitting devices.

6. The display panel according to claim 5, wherein: The display panel further includes: a plurality of first signal lines and a plurality of first adapter lines, the first signal lines being electrically connected to a column of second light-emitting devices via a column of second pixel driving circuits, and the first adapter lines being electrically connected to a column of first light-emitting devices via a column of first pixel driving circuits and the plurality of transparent signal lines; The plurality of first signal lines are electrically connected to the plurality of first adapter lines in a one-to-one correspondence, and the column of second light-emitting devices connected to one of the first signal lines and the column of first light-emitting devices connected to a corresponding one of the first adapter lines are arranged in a row.

7. The display panel according to claim 6, wherein: The first adapter line includes: a connecting line for electrically connecting to the first pixel driving circuit, and a jumper line electrically connected to the connecting line, wherein the first adapter line is electrically connected to the corresponding first signal line through the jumper line; The connecting line and the jumper line are arranged in different layers, and the connecting line and the first signal line are arranged in the same layer.

8. The display panel according to claim 5, wherein: The display panel further includes: a plurality of second signal lines and a plurality of second adapter lines, the second signal lines being electrically connected to a row of second light-emitting devices via a row of second pixel driving circuits, and the second adapter lines being electrically connected to a row of first light-emitting devices via a row of first pixel driving circuits and the plurality of transparent signal lines; The plurality of second signal lines are electrically connected to the plurality of second adapter lines in a one-to-one correspondence, and the row of second light-emitting devices connected to one second signal line and the row of first light-emitting devices connected to a corresponding second adapter line are arranged in a row.

9. The display panel according to claim 8, wherein: The extension direction of the second signal line is parallel to the extension direction of the second adapter line. The display panel further includes a gate drive GOA circuit. The second signal line is electrically connected to the corresponding second adapter line through the same gate drive GOA circuit.

10. The display panel according to any one of claims 6 to 9, characterized in that: The plurality of first pixel driving circuits and the plurality of second pixel driving circuits are evenly distributed in the transition display area, and the plurality of first pixel driving circuits and the plurality of second pixel driving circuits are staggered.

11. The display panel according to claim 10, wherein: In the row direction of the second pixel driving circuits, the ratio of the number of the first pixel driving circuits to the number of the second pixel driving circuits is 4:1; In the column direction of the second pixel driving circuits, the ratio of the number of the first pixel driving circuits to the number of the second pixel driving circuits is 2:

1.

12. The display panel according to any one of claims 6 to 9, characterized in that: The substrate further comprises a normal display area located outside the transition display area, and the display panel further comprises: a plurality of third pixel driving circuits arranged in an array and a plurality of third light-emitting devices arranged in an array located within the normal display area, wherein the plurality of third pixel driving circuits are electrically connected to the plurality of third light-emitting devices in a one-to-one correspondence; The orthographic projection areas of the first pixel driving circuit, the second pixel driving circuit, and the third pixel driving circuit on the substrate are all the same.

13. The display panel according to claim 12, wherein: The display panel further includes: a plurality of virtual pixel driving circuits, and the plurality of virtual pixel driving circuits, the first pixel driving circuit, the second pixel driving circuit, and the third pixel driving circuit are evenly distributed on the substrate.

14. A display device comprising: A photosensor and a display panel according to any one of claims 1 to 13, wherein the orthographic projection of the light-receiving surface of the photosensor on the substrate is located within the light-transmitting display area.

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