Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device, the display panel comprising: a display area; the display area comprising a pixel area, the pixel area comprising a light emitting element; a first light transmission area and a second light transmission area, an area of the first light transmission area being S1, and an area of the second light transmission area being S2; wherein |S1-S2|>0. The display panel comprises at least two light transmission areas with different light transmission areas, and by reasonably setting positions of the light transmission areas with different light transmission areas, the transparent display panel can be further designed according to different application scenarios or different requirements, thereby meeting different use requirements of users.

Description

TECHNICAL FIELD

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

[0002] With the rapid development of electronic devices, users have higher and higher requirements for display panels, and the requirements are more and more diverse. For example, in order to improve the screen ratio of the display panel, a photosensitive element can be integrated under the screen of the display panel, which requires the display panel to have certain light transmission performance; or a light transmission display device is directly provided to meet different needs of users. However, the current display panel cannot well meet the different needs of users. SUMMARY

[0003] Embodiments of the present application provide a display panel and a display device, aiming to solve the problem that the display panel cannot well meet the different needs of users.

[0004] Embodiments of the first aspect of the present application provide a display panel, comprising: a display area; the display area comprises a pixel area, and the pixel area comprises a light emitting element; a first light transmission area and a second light transmission area, the area of the first light transmission area is S1, and the area of the second light transmission area is S2; wherein |S1-S2|>0.

[0005] Embodiments of the second aspect of the present application also provide a display device comprising the display panel of any one of the above first aspect embodiments.

[0006] In the display panel provided by the embodiments of the present application, the display area of the display panel is provided with a pixel area, and the light emitting element of the pixel area is used to realize light emitting display of the display panel. The display panel further comprises a first light transmission area and a second light transmission area, and the light transmission area S1 of the first light transmission area and the light transmission area S2 of the second light transmission area are different, that is, the display panel comprises at least two light transmission areas with different light transmission areas. By reasonably setting the positions of the light transmission areas with different areas, the transparent display panel can be further designed according to different application situations or different needs, thereby meeting different use needs of users. BRIEF DESCRIPTION OF DRAWINGS

[0007] Other characteristics, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings, in which the same or similar reference signs refer to the same or similar features.

[0008] Figure 1 is a structural schematic diagram of a display panel provided by the present application;

[0009] Figure 2 is Figure 1 is a partial enlarged structural schematic diagram of P in

[0010] Figure 3 is Figure 2 In an embodiment, the cross-sectional view at A-A;

[0011] Figure 4 is Figure 2 In another embodiment, the cross-sectional view at A-A;

[0012] Figure 5 is a first pixel driving circuit structure schematic diagram of a display panel provided by the present application;

[0013] Figure 6 is a first pixel driving circuit layout of a display panel provided by the present application;

[0014] Figure 7 is a partial enlarged structure schematic diagram at M in Figure 1

[0015] Figure 8 is a first pixel driving circuit layout of a display panel provided by the present application;

[0016] Figure 9 is a layout of a partial film layer structure of a display panel in an example;

[0017] Figure 10 is a layout of another partial film layer structure of a display panel in an example;

[0018] Figure 11 is a partial enlarged structure schematic diagram at M in Figure 1

[0019] is a partial enlarged structure schematic diagram at Q in Figure 12 Figure 1

[0020] Figure 13 is a partial enlarged structure schematic diagram at Q in Figure 1

[0021] is a structure schematic diagram of a display panel provided by another embodiment of the present application; Figure 14

[0022] is a partial enlarged structure schematic diagram at Q in Figure 15 Figure 1

[0023] Figure 16 is a partial enlarged structure schematic diagram at Q in Figure 1

[0024] Figure 17 is a partial enlarged structure schematic diagram at Q in Figure 1 ​​​​​​A local enlarged structure schematic view at Q in FIG. 1C;

[0025] Figure 18 is Figure 17 A sectional view at B-B in FIG. 1C;

[0026] Figure 19 is in another example Figure 1 A local enlarged structure schematic view at Q in FIG. 1C;

[0027] Figure 20 is Figure 1 A local enlarged structure schematic view at F in FIG. 1C;

[0028] Figure 21 is Figure 20 A sectional view at C-C in FIG. 1C;

[0029] Figure 22 is a structure schematic view of a display device provided by the present application. DETAILED DESCRIPTION

[0030] Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, well-known structures and techniques have not been shown in order to avoid unnecessary obscurity of the present application; and, for clarity, the size of some structures can be exaggerated. Furthermore, features, structures or characteristics described hereinafter can be combined in any suitable manner in one or more embodiments.

[0031] In the description of the present application, it is necessary to note that, unless otherwise specified, the meaning of "a plurality of" is more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] The orientation words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the embodiments of the present application. In the description of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In order to better understand the present application, the following will be described in combination with Figures 1 to 21 The display panel and display device according to the embodiments of the present application will be described in detail.

[0034] Figure 1 A structural schematic diagram of a display panel 10 provided by the present application is shown in Figure 2 is Figure 1 A partial enlarged structural schematic diagram at P in the above figure is shown in Figure 3 is Figure 2 In an embodiment, a sectional view at A-A is shown in the above figure.

[0035] As Figures 1 to 3 shown, the display panel 10 provided by the embodiments of the present application includes a display area AA, a first light-transmitting area 120 and a second light-transmitting area 130; the display area AA includes a pixel area 110, and the pixel area 110 includes a light-emitting element 200; the area of the first light-transmitting area 120 is S1, and the area of the second light-transmitting area 130 is S2; wherein |S1-S2|>0.

[0036] In the display panel 10 provided by the embodiments of the present application, the display area AA of the display panel 10 is provided with the pixel area 110, and the light-emitting element 200 of the pixel area 110 is used to realize the light-emitting display of the display panel 10. The display panel 10 further includes the first light-transmitting area 120 and the second light-transmitting area 130, and the light-transmitting area S1 of the first light-transmitting area 120 and the light-transmitting area S2 of the second light-transmitting area 130 are different, that is, the display panel 10 includes at least two light-transmitting areas with different light-transmitting areas. By reasonably setting the positions of the light-transmitting areas with different areas, the transparent display panel 10 can be further designed according to different application situations or different needs, thereby meeting different use requirements of users.

[0037] Optionally, the light-emitting element 200 of the pixel area 110 can be selected from at least one of an organic light-emitting diode, a micro light-emitting diode and a liquid crystal light-emitting unit.

[0038] As Figure 3 and Figure 4As shown, the embodiment of the present application takes the light emitting element 200 as a micro light emitting diode as an example for illustration. Optionally, the light emitting element 200 at least includes a first electrode 21a, a first semiconductor 21b, a light emitting part 21c, a second semiconductor part 21d, and a second electrode 21e.

[0039] Optionally, as shown in FIG. 2B, the light emitting element 200 is a flip chip micro light emitting diode. The light emitting part 21c is located between the first semiconductor 21b and the second semiconductor part 21d, and the first electrode 21a and the second electrode 21e are located on the same side of the light emitting part 21c. Figure 3

[0040] Alternatively, as shown in FIG. 2C, the light emitting element 200 is a vertical micro light emitting diode. The light emitting part 21c is located between the first semiconductor 21b and the second semiconductor part 21d, and the first electrode 21a and the second electrode 21e are located on different sides of the light emitting part 21c. The first electrode 21a is located on the side of the first semiconductor 21b away from the light emitting part 21c, and the second electrode 21e is located on the side of the second semiconductor part 21d away from the light emitting part 21c. Figure 4

[0041] In other embodiments, the light emitting element 200 can also be a horizontal micro light emitting diode, that is, the first electrode 21a, the first semiconductor 21b, the light emitting part 21c, the second semiconductor part 21d, and the second electrode 21e of the light emitting element 200 are stacked in a direction parallel to the light emitting surface of the display panel.

[0042] Optionally, the material of the first semiconductor 21b can be a P-type semiconductor material, such as P-type gallium nitride, and the material of the second semiconductor part 21d is an N-type semiconductor material, such as N-type gallium nitride. Since the P-type semiconductor material relies on hole conduction, a positive voltage needs to be applied, that is, the first electrode 21a located on the side of the first semiconductor 21b away from the light emitting part 21c can be a positive electrode at this time. The N-type semiconductor material relies on electron conduction, and a negative voltage needs to be applied, that is, the second electrode 21e located on the side of the second semiconductor part 21d away from the light emitting part 21c can be a negative electrode at this time. The light emitting part 21c can be a multi-quantum well layer, and holes and electrons combine in the light emitting part 21c to make the micro light emitting diode emit light. It can be understood that the present embodiment is only an example of the electrode type and semiconductor material of the first electrode 21a, the first semiconductor 21b, the second semiconductor part 21d, and the second electrode 21e. When the material of the first semiconductor 21b can be an N-type semiconductor material, the types of the remaining structures can be selectively changed during specific implementation.

[0043] ​​Optionally, the display panel 10 can further include a thin film transistor disposed in the pixel region 110, so that the thin film transistor T drives the light emitting element 200 to emit light. The first light transmission region 120 and the second light transmission region 130 have a relatively large light transmission rate, so as to be capable of disposing a light sensing element at the position, or so as to enable the display panel to realize a transparent display function. The first light transmission region 120 and the second light transmission region 130 can be in a rectangular shape as shown in the figure, or can be in a circular shape, an elliptical shape, or other regular or irregular shapes. Figure 2

[0044] Optionally, the display panel 10 can further include a thin film transistor disposed in the pixel region 110, so that the thin film transistor T drives the light emitting element 200 to emit light. The first light transmission region 120 and the second light transmission region 130 have a relatively large light transmission rate, so as to be capable of disposing a light sensing element at the position, or so as to enable the display panel to realize a transparent display function. The first light transmission region 120 and the second light transmission region 130 can be in a rectangular shape as shown in the figure, or can be in a circular shape, an elliptical shape, or other regular or irregular shapes. Figure 2 For example, the first light transmission region 120 and the second light transmission region 130 are located in the display region AA. In other optional embodiments, the display panel 10 further includes a non-display region NA disposed around the display region AA, and the first light transmission region 120 and the second light transmission region 130 can both be located in the non-display region NA, or one of the first light transmission region 120 and the second light transmission region 130 is located in the display region AA, and the other is located in the non-display region NA.

[0045] Optionally, the display panel 10 further includes a non-display region NA, which can be disposed around the display region AA, i.e., the non-display region NA can be a frame region of the display panel 10; or the display region AA can be disposed around the non-display region NA, for example, the non-display region NA can be a light transmission hole region of the display panel 10, so that the light sensing element obtains ambient light information through the light transmission hole region. Embodiments of the present application take the non-display region NA as the frame region of the display panel 10 for example.

[0046] In still other embodiments, the display panel 10 can be a full-screen display panel 10, and the display panel 10 can not include a non-display region NA, and in this case, the first light transmission region 120 and the second light transmission region 130 are located in the display region AA. Embodiments of the present application take the display panel 10 including the display region AA and the non-display region NA for example.

[0047] Optionally, no light emitting element 200 is disposed in the first light transmission region 120 and the second light transmission region 130, i.e., the first light transmission region 120 and the second light transmission region 130 are light-transmissive and non-displayable, so as to ensure that the first light transmission region 120 and the second light transmission region 130 have a relatively good light transmission rate. Optionally, no signal line and thin film transistor T and the like are disposed in the first light transmission region 120 and the second light transmission region 130, so as to improve the light transmission rate of the first light transmission region 120 and the second light transmission region 130.

[0048] ​In some optional embodiments, the transmittance of the first light-transmissive region 120 and / or the second light-transmissive region 130 is greater than the transmittance of the pixel region 110. The first light-transmissive region 120 and / or the second light-transmissive region 130 can improve the overall transmittance of the display panel 10. The smaller transmittance of the pixel region 110 can improve the influence of ambient light on the display effect when the ambient light transmits through the display panel 10, and improve the display effect of the display panel 10. The transmittance here refers to the transmittance of light.

[0049] In some optional embodiments, please refer to Figure 1 and Figure 2 , the first light-transmissive region 120 and the second light-transmissive region 130 are located in the display region AA; the display region AA further includes a wiring region 140; the first light-transmissive region 120 and the second light-transmissive region 130 are respectively located on both sides of the pixel region 110 or the wiring region 140.

[0050] In these optional embodiments, the first light-transmissive region 120 and the second light-transmissive region 130 are located in the display region AA to improve the light transmittance and light transmittance uniformity of the display region AA, and the first light-transmissive region 120 and the second light-transmissive region 130 are respectively located on both sides of the pixel region 110 or the wiring region 140 to improve the influence of the first light-transmissive region 120 and the second light-transmissive region 130 on the wirings in the wiring region 140 or the light-emitting elements 200 in the pixel region 110.

[0051] Optionally, the wiring region 140 can be used to set data signal lines 210, scanning signal lines and other signal wirings. Optionally, the transmittance of the wiring region 140 is less than the transmittance of the first light-transmissive region 120 and the second light-transmissive region 130.

[0052] Optionally, the first light-transmissive region 120 and the second light-transmissive region 130 can be located on both sides of the wiring region 140, and / or the first light-transmissive region 120 and the second light-transmissive region 130 can be located on both sides of the pixel region 110.

[0053] In some optional embodiments, the pixel region 110 includes a first pixel region 111, the first pixel region 111 includes a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13; the first sub-pixel 11 and the second sub-pixel 12 correspond to the first light-transmissive region 120, and the third sub-pixel 13 corresponds to the second light-transmissive region 130; wherein S1>S2.

[0054] In the optional embodiments, the first pixel region 111 includes a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13, which can be used to emit light of different colors to realize the light-emitting display of the display panel 10. The first sub-pixel 11 and the second sub-pixel 12 correspond to the first light-transmitting region 120, for example, the first sub-pixel 11 and the second sub-pixel 12 are arranged side by side with the first light-transmitting region 120, and the third sub-pixel 13 is arranged side by side with the second light-transmitting region 130. That is, the first light-transmitting region 120 and two sub-pixels are arranged side by side, and the second light-transmitting region 130 and one sub-pixel are arranged side by side, so that the setting area S1 of the first light-transmitting region 120 can be greater than the setting area S2 of the second light-transmitting region 130. No wiring region 140 is arranged between the first sub-pixel 11 and the second sub-pixel 12, and the wiring region 140 is located on the side of the first sub-pixel 11 away from the second sub-pixel 12 or the wiring region 140 is located on the side of the second sub-pixel 12 away from the first sub-pixel 11, so that the first sub-pixel 11 and the second sub-pixel 12 correspond to form a larger first light-transmitting region 120. In addition, by arranging the first light-transmitting region 120 and the second light-transmitting region 130 to correspond to different sub-pixels, the first pixel region 111 is designed to be segmented, which facilitates wiring in the first pixel region 111, reduces the distance between the wiring and different sub-pixels in the first pixel region 111, and also makes the setting positions of the first light-transmitting region 120 and the second light-transmitting region 130 flexible, so that the areas of the first light-transmitting region 120 and the second light-transmitting region 130 are different, and the transparent display panel 10 can be further designed according to different application scenarios or different needs.

[0055] Optionally, the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are used to emit light of different colors, and the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 can be used to form a pixel unit for emitting white light. For example, the first sub-pixel 11 is a red sub-pixel, the second sub-pixel 12 is a blue sub-pixel, and the third sub-pixel 13 is a green sub-pixel. Optionally, the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are a pixel repeating unit, and a plurality of pixel repeating units are arranged in rows and columns to form a pixel arrangement structure of the display panel 10, and the first pixel region 111 includes a plurality of sub-pixels in a pixel repeating unit.

[0056] Optionally, the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 can be arranged in rows and columns along the first direction X and the second direction Y. For example, the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are arranged in sequence along the first direction X and located in the same row, and a plurality of first pixel regions 111 are arranged along the first direction X to form a pixel row.

[0057] The first sub-pixel 11 and the second sub-pixel 12 corresponding to the first light-transmitting area 120 can be that the first sub-pixel 11 and the second sub-pixel 12 are arranged side by side along the second direction Y with the first light-transmitting area 120. Optionally, the extension length of the first light-transmitting area 120 in the first direction X can be less than or equal to the extension length of the first sub-pixel 11 and the second sub-pixel 12 in the first direction X. So that the first light-transmitting area 120 will not affect the step of connecting the signal lines for connecting the first sub-pixel 11 and the second sub-pixel 12.

[0058] Similarly, the third sub-pixel 13 corresponding to the second light-transmitting area 130 can be that the third sub-pixel 13 is arranged side by side along the second direction Y with the second light-transmitting area 130. Optionally, the extension length of the second light-transmitting area 130 in the first direction X can be less than or equal to the extension length of the third sub-pixel 13 in the second direction Y.

[0059] In some optional embodiments, the wiring area 140 includes a first wiring area 141 and a second wiring area 142; the first light-transmitting area 120 and the second light-transmitting area 130 are respectively located on both sides of the second wiring area 142; the wiring area 140 includes data signal lines 210, and the number of data signal lines 210 in the first wiring area 141 is less than the number of data signal lines 210 in the second wiring area 142.

[0060] In these optional embodiments, the wiring area 140 is divided into a first wiring area 141 and a second wiring area 142, and the data signal lines 210 connecting the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 can be located in the first wiring area 141 and the second wiring area 142. The first light-transmitting area 120 and the second light-transmitting area 130 are located on both sides of the second wiring area 142, and the number of data signal lines 210 in the second wiring area 142 is large, so that the data signal lines 210 in the second wiring area 142 can respectively connect the sub-pixels located on both sides of the second wiring area 142.

[0061] Optionally, the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are arranged in sequence, the second wiring area 142 is located between the second sub-pixel 12 and the third sub-pixel 13, and the data signal line 210 in the second wiring area 142 can be used to connect the second sub-pixel 12 and the third sub-pixel 13. The data signal line 210 in the first wiring area 141 can be used to connect the first sub-pixel 11. On the basis of dividing the wiring area 140 into the first wiring area 141 and the second wiring area 142, by reasonably setting the number of the data signal lines 210 in different wiring areas 140 and the positional relationship between the data signal lines 210 and different sub-pixels in the wiring area 140, the distance between the data signal line 210 and the sub-pixel connected thereto can be reduced. Optionally, the first wiring area 141 and the second wiring area 142 can be arranged in extension along the second direction Y, the first wiring area 141 is located on the side of the first sub-pixel 11 away from the second sub-pixel 12, and the second wiring area 142 is located between the second sub-pixel 12 and the third sub-pixel 13, so as to facilitate the mutual connection between the data signal line 210 in the first wiring area 141 and the first sub-pixel 11, the connection between the data signal line 210 in the second wiring area 142 and the second sub-pixel 12 and the third sub-pixel 13, and to reduce the distance between the data signal line 210 and the sub-pixel adjacent thereto, reduce the extension length of the data signal line 210, reduce the distribution area of the data signal line 210, and further improve the light transmittance of the display panel 10.

[0062] Please refer to Figures 1 to 6 , Figure 5 is a pixel driving circuit diagram of a display panel 10 provided by an embodiment of the present application, Figure 6 is a layout of a first pixel driving circuit of a display panel 10 provided by an embodiment of the present application.

[0063] In some optional embodiments, as shown in Figures 1 to 6 , the first sub-pixel 11 includes a first pixel driving circuit 101, the second sub-pixel 12 includes a second pixel driving circuit 102, and the third sub-pixel 13 includes a third pixel driving circuit 103; the first pixel driving circuit 101 and the second pixel driving circuit 102 are mirror-symmetric, and the second pixel driving circuit 102 and the third pixel driving circuit 103 are mirror-symmetric.

[0064] Optionally, the circuit structure of the first pixel driving circuit 101 is as shown in Figure 5 , and the layout of the first pixel driving circuit 101 is as shown in Figure 6 . Optionally, Figure 6 , it can be considered that Figure 2 is a layout of a pixel driving circuit structure corresponding to the structural schematic diagram shown in Figure 2 , the relative positional relationship among the first pixel area 111, the first light-transmitting area 120, the second light-transmitting area 130 and the wiring area 140 is schematically shown inFigure 6 The structure of the first pixel driving circuit 101, the second pixel driving circuit 102 and the third pixel driving circuit 103 in the first pixel area 111 and the signal wiring provided in the wiring area 140 are shown. In order to more clearly show the via connection relationship between the film layers, Figure 6 The location of the connection via h used to connect the various film layers is schematically shown in FIG. Figure 6 Two different sizes of via holes h are shown in FIG. 1 . The embodiment of the present application does not limit the size of the via holes h, as long as the via holes can be connected between different film layers.

[0065] like Figure 2 and Figure 6 As shown, the data signal line 210 includes a first data signal line 211, a second data signal line 212, and a third data signal line 213. The first data signal line 211 is located in the first routing area 141, and the second data signal line 212 and the third data signal line 213 are located in the second routing area 142. The first light-transmitting area 120, the first pixel driving circuit 101, and the second pixel driving circuit 102 are located between the first routing area 141 and the second routing area 142. The second light-transmitting area 130 and the third pixel driving circuit 103 are located on a side of the second routing area 142 away from the first light-transmitting area 120. The first pixel driving circuit 101 is electrically connected to the first data signal line 211 in the first routing area 141, the second pixel driving circuit 102 is electrically connected to the second data signal line 212 in the second routing area 142, and the third pixel driving circuit 103 is electrically connected to the third data signal line 213 in the second routing area 142. Since the first pixel driving circuit 101 and the second pixel driving circuit 102 are mirror-symmetrical, the first pixel driving circuit 101 and the second pixel driving circuit 102 are respectively connected to the first data signal line 211 and the second data signal line 212 located on both sides thereof.

[0066] In the embodiments of the present application, the first pixel driving circuit 101 and the second pixel driving circuit 102 are mirror-symmetrical, and the second pixel driving circuit 102 and the third pixel driving circuit 103 are mirror-symmetrical. The second pixel driving circuit 102 does not need to be electrically connected to the signal lines in the first pixel driving circuit 101 and the first wiring area 141, so that the distance between the second pixel driving circuit 102 and the second data signal line 212 connected thereto can be reduced; similarly, the first pixel driving circuit 101 does not need to be electrically connected to the signal lines in the second pixel driving circuit 102 and the second wiring area 142, so that the distance between the first pixel driving circuit 101 and the first data signal line 211 connected thereto can be reduced, the distance between the third pixel driving circuit 103 and the third data signal line 213 can be reduced, the wiring distribution area is reduced, and the light transmittance of the display panel is improved. In addition, the distribution pattern of the pixel driving circuit can be simplified.

[0067] Optionally, as shown in Figures 3 to 6 The display panel further includes a first pad 21f and a second pad 21g, the first pad 21f is connected to the first electrode 21a, and the second pad 21g is connected to the second electrode 21e. One of the first pad 21f and the second pad 21g is connected to the pixel driving circuit. For example, the first electrode 21a of the light emitting element 200 of the first sub-pixel 11 is connected to the first pixel driving circuit 101 through the first pad 21f, the first electrode 21a of the light emitting element 200 of the second sub-pixel 12 is connected to the second pixel driving circuit 102 through the first pad 21f, and the first electrode 21a of the light emitting element 200 of the third sub-pixel 13 is connected to the third pixel driving circuit 103 through the first pad 21f. Optionally, the first pad 21f and the pixel driving circuit can be directly connected through a via, or a conductive layer is arranged between the first pad 21f and the pixel driving circuit, a connecting portion 280 is arranged in the conductive layer, and the first pad 21f and the pixel driving circuit are connected to each other through the connecting portion 280.

[0068] Optionally, the first sub-pixel 11 further includes a first light emitting unit 104, the second sub-pixel 12 further includes a second light emitting unit 105, and the third sub-pixel 13 further includes a third light emitting unit 106. The first electrode 21a of the first light emitting unit 104 is electrically connected to the first pixel driving circuit 101, the first electrode 21a of the second light emitting unit 105 is electrically connected to the second pixel driving circuit 102, and the first electrode 21a of the third light emitting unit 106 is electrically connected to the third pixel driving circuit 103.

[0069] In some optional embodiments, as shown in Figure 5 and Figure 6As shown, the first pixel driving circuit 101 comprises a first data writing transistor M3 and a first driving transistor M1, the data signal line 210 comprises a first data signal line 211, the first data signal line 211 is electrically connected with the first data writing transistor M3, and the first data writing transistor M3 is located at the side of the first driving transistor M1 close to the first data signal line 211. The distance between the first data writing transistor M3 and the first data signal line 211 can be reduced, the distribution area of the wire can be reduced, and the light transmittance of the display panel 10 can be further improved.

[0070] In some optional embodiments, the second pixel driving circuit 102 comprises a second data writing transistor and a second driving transistor, the data signal line 210 comprises a second data signal line 212, the second data signal line 212 is electrically connected with the second data writing transistor, and the second data writing transistor is located at the side of the second driving transistor close to the second data signal line 212. The distance between the second data writing transistor and the second data signal line 212 can be reduced, the distribution area of the wire can be reduced, and the light transmittance of the display panel 10 can be further improved.

[0071] In some optional embodiments, the third pixel driving circuit 103 comprises a third data writing transistor and a third driving transistor, the data signal line 210 comprises a third data signal line 213, the third data signal line 213 is electrically connected with the third data writing transistor, and the third data writing transistor is located at the side of the third driving transistor close to the third data signal line 213. The distance between the third data writing transistor and the third data signal line 213 can be reduced, the distribution area of the wire can be reduced, and the light transmittance of the display panel 10 can be further improved.

[0072] Optionally, the first data signal line 211 is located in the first wire area 141, the second data signal line 212 and the third data signal line 213 are located in the second wire area 142, and the second data signal line 212 is located at the side of the third data signal line 213 close to the second data writing transistor, so as to further reduce the distance between the data writing transistor and the data line connected therewith, reduce the distribution area of the wire, and further improve the light transmittance of the display panel 10.

[0073] Optionally, the circuit structures of the first pixel driving circuit 101, the second pixel driving circuit 102 and the third pixel driving circuit 103 are the same. The data signal line 210 comprises the first data signal line 211, the second data signal line 212 and the third data signal line 213, the first data signal line 211 is connected with the first pixel driving circuit 101, the second data signal line 212 is connected with the second pixel driving circuit 102, and the third data signal line 213 is connected with the third pixel driving circuit 103.

[0074] Optionally, as shown in FIG. 1C, Figure 5 andFigure 6 As shown, the pixel driving circuit structure of the embodiment of the present application is exemplified by taking the first pixel driving circuit 101 as an example. The first pixel driving circuit 101 can further include a first power write transistor M0, a first light-emitting control transistor M2, a first pixel electrode reset transistor M6, a first threshold compensation transistor M5, a first gate reset transistor M4, and a storage capacitor Cst. The display panel 10 further includes a first scan signal line 230, a second scan signal line 240, a light-emitting control signal line 250, a reference voltage signal line 220, a driving power voltage signal line PVDD, and a negative power voltage signal line PVEE.

[0075] Optionally, the first power write transistor M0 and the first light-emitting control transistor M2 are connected to the light-emitting control signal line 250, the data write transistor M3 is connected to the data signal line 210 and the second scan signal line 240, for example, the data write transistor M3 of the first pixel driving circuit 101 is connected to the first data signal line 211. The first gate reset transistor M4 is connected to the first scan signal line 230 and the reference voltage signal line 220, the first threshold compensation transistor M5 is a double-gate transistor and is connected to the second scan signal line 240, and the third reset transistor M6 is connected to the first scan signal line 230. The first power write transistor M0 is connected to the driving power voltage signal line PVDD. The pixel driving circuit is further connected to the negative power voltage signal line PVEE.

[0076] Optionally, the first power write transistor M0 and the first light-emitting control transistor M2 are arranged on the side of the first driving transistor M1 facing the first light-transmitting area 120, and the first power write transistor M0 and the first light-emitting control transistor M2 are arranged in the first direction X and are both connected to the light-emitting control signal line 250. The first threshold compensation transistor M5 and the first pixel electrode reset transistor M6, the first data write transistor M3 and the first gate reset transistor M4 are located on the side of the first driving transistor M1 away from the first light-transmitting area 120.

[0077] Optionally, the first wiring area 141, the second wiring area 142, the first sub-pixel 11, the second sub-pixel 12, the third sub-pixel 13, the first light-transmitting area 120, and the second light-transmitting area 130 form a repeating unit, and a plurality of repeating units are arranged side by side in the first direction X. The third sub-pixel 13 and the first sub-pixel 11 of adjacent repeating units are adjacent, and the first wiring area 141 is located between the adjacent two repeating units.

[0078] Please refer to Figures 1 to 10 , Figure 7 is another example of a local enlarged structure diagram at M in Figure 1 Figure 8 is a pixel driving circuit layout of a display panel in an example; Figure 9 ​This is a layout of part of the film layer of the display panel in an example. Figure 10 This is an example of a layout showing another portion of the film layer of the display panel.

[0079] In some optional embodiments, such as Figures 1 to 10 As shown, the pixel area 110 includes a second pixel area 112, the second pixel area 112 includes a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13; the display panel 10 also includes a third light-transmitting area 150, the second pixel area 112 corresponds to the third light-transmitting area 150, and the area of ​​the third light-transmitting area 150 is S3; wherein, S3>S1.

[0080] In these optional embodiments, the pixel region 110 further includes a second pixel region 112, the second pixel region 112 includes three sub-pixels, and the third light-transmitting region 150 is provided corresponding to the three sub-pixels of the second pixel region 112. In the embodiment of the present application, in addition to the first light-transmitting region 120 corresponding to two sub-pixels and the second light-transmitting region 130 corresponding to one sub-pixel, a third light-transmitting region 150 corresponding to three sub-pixels is provided, thereby enriching the arrangement of the light-transmitting regions. In addition, the third light-transmitting region 150 corresponding to the three sub-pixels can increase the arrangement area of ​​the third light-transmitting region 150, thereby improving the transmittance of the display panel 10.

[0081] Optional, Figure 8 It can be considered Figure 7 The schematic diagram of the structure shown corresponds to the layout of the pixel driving circuit structure. Figure 7 Schematically shows the relative position relationship between the second pixel area 112 and the third light-transmitting area 150. Figure 8 The structure of the first pixel driving circuit 101 , the second pixel driving circuit 102 and the third pixel driving circuit 103 in the second pixel area 112 and the signal wiring arranged in the wiring area 140 are schematically shown. Figure 8 The figure also shows the connection holes h between the film layers. The arrangement of the holes h is as described above and will not be repeated here. In order to more clearly illustrate the structures of the first pixel driving circuit 101, the second pixel driving circuit 102 and the third pixel driving circuit 103, Figure 8 Omitted Figure 9 The driving power supply voltage signal line PVDD and the negative power supply voltage signal line PVEE are shown. Figure 10 Contains Figure 8 The film structure and Figure 9 The film structure shown in Figure 10 Indicated Figure 8 The film structure and Figure 9The relative position relationship of the shown film layer structure. As described above, the pixel region 110 includes the first pixel region 111 and the second pixel region 112, and the first pixel region 111 and the second pixel region 112 each include the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13. Optionally, the arrangement mode of the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 included in the first pixel region 111 and the second pixel region 112 can be the same, and the difference between the first pixel region 111 and the second pixel region 112 lies in that their positions are different and the light transmission regions corresponding to the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 in them are different.

[0082] As shown in Figure 7 and Figure 8 , the second pixel region 112 is provided with the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13, and the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are provided corresponding to the third light transmission region 150. The first data signal line 211, the second data signal line 212 and the third data signal line 213 are provided on both sides of the second pixel region 112, i.e. the first data signal line 211, the second data signal line 212 and the third data signal line 213 are located in the same wiring region 140, which is located on both sides of the corresponding provided second pixel region 112 and the third light transmission region 150.

[0083] Optionally, taking the view direction of Figure 7 and Figure 8 as an example, the first pixel driving circuit 101 can be connected to the first data signal line 211 located on the left side of the third light transmission region 150, the second pixel driving circuit 102 can be connected to the second data signal line 212 located on the right side of the third light transmission region 150, and the third pixel driving circuit 103 can be connected to the third data signal line 213 located on the right side of the third light transmission region 150, i.e. the second pixel driving circuit 102 and the third pixel driving circuit 103 are connected to the data signal lines 210 located on the same side of the third light transmission region 150, so as to reduce the distance between each pixel driving circuit and each data signal line 210. In other embodiments, the second pixel driving circuit 102 can also be connected to the second data signal line 212 located on the left side of the third light transmission region 150, i.e. the second pixel driving circuit 102 and the first pixel driving circuit 101 are connected to the data signal lines 210 located on the same side of the third light transmission region 150.

[0084] Optionally, Figure 7 , Figure 8 and Figure 6 differ from each other in that the positions of the wiring region 140, the third light transmission region 150 and the second pixel region 112 are different, Figure 7 , Figure 8 the positions of the transistors in the second pixel driving circuit 102 and the third pixel driving circuit 103 are different,Figure 7 、 Figure 8 The electrical connection relationship between the transistors in the pixel driving circuit can be seen from Figure 5 .

[0085] Optionally, as shown in Figure 11 , the second pixel area 112 is located on the side of the first pixel area 111 away from the non-display area NA, that is, the second pixel area 112 is arranged more close to the center of the display area AA relative to the first pixel area 111.

[0086] Optionally, as described above, when the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are arranged side by side along the first direction X and the second direction Y, a plurality of second pixel areas 112 can be arranged in rows along the first direction X to form a pixel row, and the third light-transmitting area 150 and the second pixel area 112 can be arranged side by side along the second direction Y. Optionally, the extension length of the third light-transmitting area 150 in the first direction X can be less than or equal to the extension length of the second pixel area 112 in the first direction X. Optionally, as described above, the display panel 10 can further include a non-display area NA arranged around the display area AA. The non-display area NA is usually provided with light shielding components such as wires, which results in that the light transmittance of the non-display area NA is significantly less than the transmittance of the display area AA.

[0087] In some optional embodiments, the second light-transmitting area 130 is located on the side of the first light-transmitting area 120 facing the non-display area NA, and / or the first light-transmitting area 120 is located on the side of the third light-transmitting area 150 facing the non-display area NA. That is, along the direction close to the non-display area NA, the area of the light-transmitting area in the display area AA gradually decreases, which better improves the problem of non-uniform light transmittance between the display area AA and the non-display area NA.

[0088] As shown in Figure 11 , the display panel can include a first light-transmitting area 120, a second light-transmitting area 130 and a third light-transmitting area 150. Optionally, as shown in Figure 11 , in the display area AA, the first light-transmitting area 120 is located on the side of the second light-transmitting area 130 facing the non-display area NA, and the third light-transmitting area 150 is located on the side of the second light-transmitting area 130 away from the non-display area NA, that is, along the direction close to the non-display area NA, the area of the light-transmitting area in the display area AA gradually decreases, which better improves the problem of non-uniform light transmittance between the display area AA and the non-display area NA.

[0089] Figure 11 Only the relative position relationship of the first light-transmitting area 120, the second light-transmitting area 130, the third light-transmitting area 150 and the first pixel area 111 and the second pixel area 112 is shown, the pixel circuit layout of the second pixel area 112 can be seen from Figure 8 and Figure 10 , and the pixel circuit layout of the first pixel area 111 can be seen fromFigure 6 .

[0090] The light transmission region can be provided in various manners. For example, the light transmission region can be provided with a via hole. In other optional embodiments, please refer to Figures 1 to 4 The display panel 10 includes a first film layer 20. The first film layer 20 includes a first opening 21 located at the first light transmission region 120 and a second opening 22 located at the second light transmission region 130. By providing the first opening 21 and the second opening 22, the transmittance of the first light transmission region 120 and the second light transmission region 130 can be improved.

[0091] Optionally, the first opening 21 and / or the second opening 22 is filled with a transparent filling portion. The transmittance of the transparent filling portion is greater than that of the first film layer 20. By additionally providing the transparent filling portion, the flatness of the first film layer 20 as a whole can be improved while ensuring that the first light transmission region 120 and the second light transmission region 130 have high transmittance.

[0092] The first film layer 20 can be a single-layer structure layer, or the first film layer 20 can include a plurality of sub-layers stacked. The embodiments of the present application are exemplified by taking the first film layer 20 as including a plurality of film layers. The first opening 21 can be provided through the first film layer 20, or the first opening 21 can be formed by recessing the surface of the first film layer 20. That is, the first film layer 20 can be perforated to improve the transmittance, or the local thickness of the first film layer 20 can be thinned to improve the transmittance. Similarly, the second opening 22 can be provided through the first film layer 20, or the second opening 22 can be formed by recessing the surface of the first film layer 20. That is, the first film layer 20 can be perforated to improve the transmittance, or the local thickness of the first film layer 20 can be thinned to improve the transmittance.

[0093] The first film layer 20 can include an organic film layer and / or an inorganic film layer. When the first film layer 20 includes an organic film layer, the first film layer 20 can include photoresist and the like. At this time, the first film layer 20 can be prepared by a coating or printing process. When the first film layer 20 includes an inorganic film layer, the first film layer 20 can include silicon oxide and / or silicon nitride and the like. At this time, the first film layer 20 can be prepared by a deposition process.

[0094] As described in Figure 3 and Figure 4 , the display panel 10 can further include a substrate 60. The first pixel driving circuit 101 can be disposed on the substrate 60. The first light emitting unit 104 is disposed on the side of the first pixel driving circuit 101 away from the substrate 60. Optionally, the display panel 10 can further include a cover plate 50. The cover plate 50 is located on the side of the first light emitting unit 104 away from the substrate 60. Optionally, an adhesive layer 40 can be further provided between the cover plate 50 and the first light emitting unit 104.

[0095] Please refer toFigure 1 and Figure 12 , Figure 12 In one example Figure 1 Schematic diagram of the locally enlarged structure at the middle Q.

[0096] In some optional embodiments, such as Figure 1 and Figure 12 As shown, the first light-transmitting area 120 and the second light-transmitting area 130 are both located in the non-display area NA to improve the transmittance of the non-display area NA, thereby improving the overall transmittance of the display panel 10. Furthermore, by adding the first light-transmitting area 120 and the second light-transmitting area 130 to the non-display area, the transmittance of the non-display area will increase as the area ratio of the first light-transmitting area 120 and the second light-transmitting area 130 increases. By properly arranging the distribution area of ​​the first light-transmitting area 120 and the second light-transmitting area 130, the transmittance of the non-display area can be increased, thereby reducing the presence of the border and improving the display effect of the transparent screen.

[0097] There are various arrangements of the first light-transmitting area 120 and the second light-transmitting area 130 in the non-display area NA. For example, the first light-transmitting area 120 and the second light-transmitting area 130 may be distributed on one side of the display area AA along the extending direction of the non-display area NA.

[0098] In other embodiments, please refer to Figure 12 , the second light-transmitting area 130 is located on the side of the first light-transmitting area 120 away from the display area AA; wherein, S1>S2. The non-display area NA is usually used to set up light-shielding components such as wiring, resulting in a low transmittance of the non-display area NA. In the embodiment of the present application, by setting the first light-transmitting area 120 with a larger distribution area in the non-display area NA close to the display area AA, the transmittance in the non-display area NA gradually increases in the direction close to the display area AA, which can improve the display difference between the display area AA and the non-display area NA and improve the overall light transmission effect of the display panel 10. The use of a gradually distributed light-transmitting area can achieve a gradual transmittance effect. The area of ​​the light-transmitting area is large near the display area AA, and the area of ​​the light-transmitting area is small away from the display area AA, thereby further alleviating the problem of a clear boundary between the display area AA and the non-display area NA.

[0099] Please also refer to Figure 1 and Figure 13 , Figure 13 In another example Figure 1 Schematic diagram of the locally enlarged structure at the middle Q.

[0100] In some optional embodiments, the display panel 10 further includes a fourth light-transmitting area 160 located in the non-display area NA, the area of ​​the fourth light-transmitting area 160 is S4, and the fourth light-transmitting area 160 is located on the side of the first light-transmitting area 120 facing the display area AA; wherein S4>S1>S2.

[0101] In these optional embodiments, by adding the fourth light-transmitting area 160, the shape and arrangement of the light-transmitting area can be enriched, and the fourth light-transmitting area 160 with a larger area is located on the side close to the display area AA, which can better improve the problem of large difference in transmittance between the display area AA and the non-display area NA.

[0102] In some optional embodiments, S4-S1=S1-S2, or S4 / S1=S1 / S2. That is, the distribution areas of the fourth light-transmitting area 160, the first light-transmitting area 120 and the second light-transmitting area 130 change in equal difference or equal ratio, so that the transmittance of the display panel 10 is more uniform in the direction from the display area AA to the non-display area NA.

[0103] In some optional embodiments, as shown in Figure 14 The first light-transmitting area 120 includes first sub-areas 121 and second sub-areas 122 arranged at intervals along a first preset direction, and the distance from the first sub-areas 121 to the display area AA is equal to the distance from the second sub-areas 122 to the display area AA.

[0104] In these optional embodiments, the distances from the first sub-areas 121 and the second sub-areas 122 of the first light-transmitting area 120 to the display area AA are equal, so that the transmittance at different positions in the first direction X on the non-display area NA is more uniform, the transmittance at different positions of the non-display area NA arranged around the display area AA is more uniform, and the light transmission effect of the display panel 10 is further improved.

[0105] Optionally, as shown in Figure 14 The non-display area NA can include two first non-display areas arranged opposite to each other along the first direction X and two second non-display areas arranged opposite to each other along the second direction Y, and the two first non-display areas and the two second non-display areas are alternately connected at the head and tail to enclose the display area AA.

[0106] When the first sub-areas 121 and the second sub-areas 122 are located in the first non-display area, the first preset direction can be the second direction Y, and the first sub-areas 121 and the second sub-areas 122 are arranged at intervals along the second direction Y. Along the second direction Y, the distance between the first sub-areas 121 and the display area AA is equal to the distance between the second sub-areas 122 and the display area AA. So that the transmittance at different positions along the second direction Y in the first non-display area is more uniform.

[0107] When the first sub-areas 121 and the second sub-areas 122 are located in the second non-display area, the first preset direction can be the first direction X, and the first sub-areas 121 and the second sub-areas 122 are arranged at intervals along the first direction X. Along the first direction X, the distance between the first sub-areas 121 and the display area AA is equal to the distance between the second sub-areas 122 and the display area AA. So that the transmittance at different positions along the first direction X in the second non-display area is more uniform.

[0108] Optionally, please continue to refer to Figure 14 The second light-transmitting area 130 comprises a third sub-area 131 and a fourth sub-area 132 which are spaced apart along the first preset direction, and the distance from the third sub-area 131 to the display area AA is equal to the distance from the fourth sub-area 132 to the display area AA. In this way, the transmittance of the non-display area NA at different positions in the first direction X is more uniform, and the transmittance of the non-display area NA arranged around the display area AA at different positions is more uniform, further improving the light-transmitting effect of the display panel 10.

[0109] As described above, when the non-display area NA comprises a first non-display area and a second non-display area, the third sub-area 131 and the fourth sub-area 132 can be located in the first non-display area and / or the second non-display area. When the third sub-area 131 and the fourth sub-area 132 are located in the first non-display area, the first preset direction can be the second direction Y, and the third sub-area 131 and the fourth sub-area 132 are spaced apart along the second direction Y. Along the first direction X, the distance between the third sub-area 131 and the display area AA is equal to the distance from the fourth sub-area 132 to the display area AA. In this way, the transmittance of the first non-display area at different positions along the second direction Y is more uniform.

[0110] When the third sub-area 131 and the fourth sub-area 132 are located in the second non-display area, the first preset direction can be the first direction X, and the third sub-area 131 and the fourth sub-area 132 are spaced apart along the first direction X. Along the second direction Y, the distance between the third sub-area 131 and the display area AA is equal to the distance from the fourth sub-area 132 to the display area AA. In this way, the transmittance of the second non-display area at different positions along the first direction X is more uniform.

[0111] Optionally, as shown in Figure 14 The first sub-area 121 and / or the second sub-area 122 can be arranged side by side with the second light-transmitting area 130. For example, when the first sub-area 121, the second sub-area 122, the third sub-area 131 and the fourth sub-area 132 are located in the same first non-display area, the first sub-area 121 and the third sub-area 131 can be arranged side by side along the first direction X, and the second sub-area 122 and the fourth sub-area 132 can be arranged side by side along the first direction X.

[0112] Optionally, as shown in Figure 14 The plurality of first light-transmitting areas 120 are spaced apart along the first track L1 around the display area AA, and the first track L1 is arranged at equal distances from the boundary of the display area AA, i.e., the minimum distance from different parts of the first track L1 to the boundary of the display area AA is equal. In these embodiments, by arranging the plurality of first light-transmitting areas 120 spaced apart along the first track L1 around the display area AA, the transmittance of the display panel at different positions of the boundary between the display area AA and the non-display area NA is more uniform.

[0113] Optionally, the plurality of first light-transmissive regions 120 are spaced along the first trajectory L1 around the display region AA, and the geometric centers of the projections of the plurality of first light-transmissive regions 120 along the display panel thickness direction are spaced along the first trajectory L1.

[0114] Optionally, as shown in FIG. 1C, the plurality of second light-transmissive regions 130 are spaced along the second trajectory L2 around the display region AA, and the second trajectory L2 is equidistantly arranged with respect to the boundary of the display region AA, i.e., the minimum distance from different parts of the second trajectory L2 to the boundary of the display region AA is equal. In these embodiments, by arranging the plurality of second light-transmissive regions 130 along the second trajectory L2 around the display region AA, the transmittance of the display panel is more uniform at different positions of the boundary between the display region AA and the non-display region NA. Figure 14 Optionally, the first trajectory L1 and the second trajectory L2 are equidistantly arranged, so that the transmittance of the display panel is more uniform in the direction from the display region AA to the non-display region NA.

[0115] In some embodiments, as shown in FIG. 1D, the display region AA and the non-display region NA have a boundary, and when the boundary extends along the second direction Y, the first sub-region 121 and the second sub-region 122 can be spaced along the second direction Y, and the first preset direction is the second direction Y. Please refer to

[0116] when the display region AA has a corner, and the boundary between the display region AA and the non-display region NA extends along a direction intersecting the first direction X, the first sub-region 121 and the second sub-region 122 can extend along the extension direction of the boundary adjacent thereto, i.e., the first sub-region 121 and the second sub-region 122 also extend along a direction intersecting the first direction X. Similarly, the third sub-region 131 and the fourth sub-region 132 can also extend along a direction intersecting the first direction X. Figure 14 Figure 14 In other optional embodiments, as shown in FIG. 1E and FIG. 1F, along the second preset direction, the first sub-region 121 and / or the second sub-region 122 at least partially do not overlap with the second light-transmissive region 130, and the second preset direction intersects the first preset direction. That is, at least part of the first light-transmissive region 120 and the second light-transmissive region 130 are misaligned, and at least part of the second light-transmissive region 130 corresponds to between the adjacent first sub-region 121 and the second sub-region 122, so that the distribution of the light-transmissive regions is more uniform, to improve the uniformity of light transmission in the non-display region NA.

[0117] For example, as shown in FIG. 1E, the first sub-region 121 and the second sub-region 122 are arranged along the second direction Y, and the second light-transmissive region 130 is arranged along the first direction X, and the second light-transmissive region 130 is misaligned with the first sub-region 121 and the second sub-region 122. Figure 14 Figure 15 For example, as shown in FIG. 1F, the first sub-region 121 and the second sub-region 122 are arranged along the first direction X, and the second light-transmissive region 130 is arranged along the second direction Y, and the second light-transmissive region 130 is misaligned with the first sub-region 121 and the second sub-region 122.

[0118] For example, as shown in FIG. 1G, the first sub-region 121 and the second sub-region 122 are arranged along the first direction X, and the second light-transmissive region 130 is arranged along the second direction Y, and the second light-transmissive region 130 is misaligned with the first sub-region 121 and the second sub-region 122. Figure 14 ​​As shown, when the first sub-area 121, the second sub-area 122, the third sub-area 131 and the fourth sub-area 132 are located in the same first non-display area, the first sub-area 121 and the third sub-area 131 can be arranged at least partially non-overlapping along the first direction X, and the second sub-area 122 and the fourth sub-area 132 can be arranged at least partially non-overlapping along the first direction X. For example, the first sub-area 121 and the second sub-area 122 are arranged as a first light transmission column along the second direction Y, the third sub-area 131 and the fourth sub-area 132 are arranged as a second light transmission column along the second direction Y, the first light transmission column and the second light transmission column are staggered, at least part of the third sub-area 131 corresponds to between adjacent first sub-area 121 and second sub-area 122, and at least part of the fourth sub-area 132 corresponds to between adjacent first sub-area 121 and second sub-area 122, so that the distribution of the light transmission area is more uniform, to improve the uniformity of the light transmission of the non-display area NA.

[0119] For example, as shown in Figure 15 , along the second preset direction, the first sub-area 121 and / or the second sub-area 122 are completely non-overlapping with the second light transmission area 130. For example, the first sub-area 121 and the third sub-area 131, the fourth sub-area 132 are completely non-overlapping, and the second sub-area 122 and the third sub-area 131, the fourth sub-area 132 are completely non-overlapping, so that the distribution of the light transmission area is more uniform, to improve the uniformity of the light transmission of the non-display area NA.

[0120] Optionally, as shown in Figure 16 and Figure 17 , the display panel 10 further includes a first signal line 33 located in the non-display area NA, the first signal line 33 can be arranged around the first light transmission area 120 and the second light transmission area 130, and the extension path of the first signal line 33 can be a zigzag shape.

[0121] Optionally, as shown in Figure 16 , when the first light transmission area 120 includes the first sub-area 121 and the second sub-area 122, the first signal line 33 can be arranged around the first sub-area 121 or the second sub-area 122. When the second light transmission area 130 includes the third sub-area 131 and the fourth sub-area 132, the first signal line 33 can be arranged around the third sub-area 131 or the fourth sub-area 132.

[0122] In other optional embodiments, please refer to Figure 17 and Figure 18 , the display panel 10 includes a second film layer 30, the second film layer 30 includes a third opening 31 located in the first light transmission area 120 and a fourth opening 32 located in the second light transmission area 130. By arranging the third opening 31 and the fourth opening 32, the transmittance of the first light transmission area 120 and the second light transmission area 130 can be improved.

[0123] Optionally, the third opening 31 and / or the fourth opening 32 is filled with a transparent filling part, and the transmittance of the transparent filling part is greater than the transmittance of the second film layer 30. By adding the transparent filling part, the flatness of the second film layer 30 as a whole can be improved while ensuring that the first light-transmitting area 120 and the second light-transmitting area 130 have high transmittance.

[0124] The second film layer 30 can include an organic film layer and / or an inorganic film layer. When the second film layer 30 includes an organic film layer, the second film layer 30 can include photoresist and the like, and in this case, the second film layer 30 can be prepared by a coating or printing process. When the second film layer 30 includes an inorganic film layer, the second film layer 30 can include silicon oxide and / or silicon nitride and the like, and in this case, the second film layer 30 can be prepared by a deposition process.

[0125] The second film layer 30 can be an insulating film layer. For example, the display panel 10 further includes a cover plate 50 and an adhesive layer 40 disposed on the inner side of the cover plate 50, and the adhesive layer 40 can be reused as the second film layer 30.

[0126] Alternatively, the second film layer 30 is a metal film layer, and the second film layer 30 includes the first signal line 33 described above, and the first signal line 33 includes the third opening 31 and the fourth opening 32. The third opening 31 and the fourth opening 32 are formed by punching the first signal line 33 having low light transmittance, which can improve the light transmittance of the first light-transmitting area 120 and the second light-transmitting area 130.

[0127] Optionally, Figure 18 The first signal line 33 included in the second film layer 30 is taken as an example for illustration, and the first signal line 33 can be in the same layer as the connection part 280. In other embodiments, the first signal line 33 can also be disposed in the same layer as one of the capacitor plates of the storage capacitor Cst.

[0128] Optionally, in combination with Figure 13 , Figure 17 and Figure 18 When the display panel 10 includes the fourth light-transmitting area 160, the second film layer 30 can further include a fifth opening located in the fourth light-transmitting area 160, and the first signal line 33 can include the fifth opening described above to further improve the transmittance.

[0129] In some other embodiments, as shown in Figure 19 , the number of the second light-transmitting areas 130 is two or more, and at least two of the second light-transmitting areas 130 are disposed on both sides of the first light-transmitting area 120 to increase the diversity of the arrangement of the non-display area NA light-transmitting area.

[0130] In some other embodiments, as shown in Figure 20 and Figure 21As shown, one of the first light-transmissive region 120 and the second light-transmissive region 130 can be located in the display region AA, and the other one is located in the non-display region NA. For example, the first light-transmissive region 120 is located in the display region AA, and the second light-transmissive region 130 is located in the non-display region NA; wherein S1>S2. By setting the first light-transmissive region 120 with a larger distribution area in the display region AA, the light transmittance of the display region AA of the display panel 10 can be improved.

[0131] As shown in Figure 20 and Figure 21 As shown, the non-display region NA is provided with the first signal line 33, the first signal line 33 is multiplexed with the second film layer 30, and the first signal line 33 includes the fourth opening 32 located in the second light-transmissive region 130 to improve the light transmittance of the non-display region NA. The display region AA includes the first opening 21 located in the second light-transmissive region 120 to improve the light transmittance of the display region AA.

[0132] As shown in Figure 22 The embodiment of the second aspect of the application further provides a display device 1 comprising the display panel 10 of any of the embodiments of the first aspect. Since the display device 1 provided by the embodiment of the second aspect of the application comprises the display panel 10 of any of the embodiments of the first aspect, the display device 1 provided by the embodiment of the second aspect of the application has the beneficial effects of the display panel 10 of any of the embodiments of the first aspect, which will not be repeated here.

[0133] In any of the above embodiments, a color-changing layer can also be provided in the non-display region NA, and the color-changing layer comprises a color-changing material. By controlling the color-changing range and transparency of the color-changing material, the transparency of the non-transparent region can be further controlled. For example, the transparency near the display region AA is higher to achieve the effect of extending the transparent area wiring and changing the shape of the transparent region. The color-changing layer can be provided in the first light-transmissive region 120 and / or the second light-transmissive region 130, and the shape of the color-changing layer is the same as that of the first light-transmissive region 120 and / or the second light-transmissive region 130. That is, the first light-transmissive region 120 and / or the second light-transmissive region 130 can be provided with a color-changing material, and by controlling the color-changing range and transparency of the color-changing material, the transparency of the non-display region NA can be further controlled. Alternatively, the first light-transmissive region 120 and / or the second light-transmissive region 130 can be provided in the opening of the color-changing layer, and by adjusting the transparency of the color-changing layer, the light transmittance of the non-display region NA can be adjusted.

[0134] The display device 1 in the embodiment of the application includes but is not limited to a mobile phone, a personal digital assistant (PDA), a tablet computer, an electronic book, a television, a door access control, a smart fixed telephone, a console, and other devices with display functions.

[0135] Although the present application has been described with reference to preferred embodiments, various modifications can be made to the application without departing from the scope of the application. In particular, the technical features mentioned in the various embodiments can be combined in any way, provided that there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized by, The display panel comprises: a display area; the display area comprises a pixel area, and the pixel area comprises a light-emitting element; a light-transmitting area, comprising a first light-transmitting area and a second light-transmitting area, wherein the area of the first light-transmitting area is S1, and the area of the second light-transmitting area is S2; and |S1-S2|>0; the display panel further comprises a non-display area surrounding the display area at least in part; the first light-transmitting area and the second light-transmitting area are both located in the non-display area; and the second light-transmitting area is located on a side of the first light-transmitting area away from the display area; the display panel further comprises a fourth light-transmitting area located in the non-display area, wherein the area of the fourth light-transmitting area is S4, and the fourth light-transmitting area is located on a side of the first light-transmitting area facing the display area; and S4>S1>S2; the light-transmitting area with a larger distribution area in the non-display area is arranged close to the display area, and the light transmittance of the non-display area gradually increases in the direction close to the display area.

2. The display panel of claim 1, wherein the transmittance of the first light-transmitting area and / or the second light-transmitting area is greater than the transmittance of the pixel area.

3. The display panel of claim 1, wherein the display panel comprises a first film layer, and the first film layer comprises a first opening located in the first light-transmitting area and a second opening located in the second light-transmitting area.

4. The display panel of claim 1, wherein S4-S1=S1-S2, or S4 / S1=S1 / S2.

5. The display panel of claim 1, wherein the first light-transmitting area comprises a first sub-area and a second sub-area arranged at intervals along a first preset direction, and the distance from the first sub-area to the display area is equal to the distance from the second sub-area to the display area; and / or the second light-transmitting area comprises a third sub-area and a fourth sub-area arranged at intervals along the first preset direction, and the distance from the third sub-area to the display area is equal to the distance from the fourth sub-area to the display area.

6. The display panel of claim 5, wherein in a second preset direction, the first sub-area and / or the second sub-area at least partially do not overlap with the second light-transmitting area, and the second preset direction intersects the first preset direction.

7. The display panel of claim 1, wherein the display panel comprises a second film layer, and the second film layer comprises a third opening located in the first light-transmitting area and a fourth opening located in the second light-transmitting area.

8. The display panel of claim 7, wherein the second film layer is a metal film layer, and the second film layer comprises a first signal line, and the first signal line comprises the third opening and the fourth opening. The display panel of any one of claims 1-8.

9. A display device, characterized by comprising: ​

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