Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel comprises: a plurality of color resist and a black matrix, which are located on a side of a plurality of sub-pixels away from a substrate, the black matrix surrounds to form an opening, a vertical projection of the sub-pixel on the substrate is located in a vertical projection of at least part of the opening on the substrate, a vertical projection of the color resist on the substrate overlaps with the vertical projection of at least part of the opening on the substrate, and the color resist is arranged one by one with the sub-pixel. In the second display area, the area of the black matrix in a unit area is greater than or equal to the area of the black matrix in a unit area in the first display area, and the area of the black matrix in a unit area in the first display area is greater than the area of the black matrix in a unit area in the light sensing element setting area. The display panel and the display device can realize balanced transmittance and reflectivity of the light sensing element setting area, increase the brightness of the light sensing element setting area, and reduce the reflectivity of the light sensing element setting area.

Description

[0001] This application is a divisional application of a patent application with the application date of June 29, 2020, the application number of 202010611770.5, and the invention name of "a display panel and a display device". TECHNICAL FIELD

[0002] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0003] With the development of science and technology and the progress of society, people's dependence on information exchange and transmission is increasing, and display devices, as the main carrier and material basis of information exchange and transmission, have become a hot research topic for many scientists.

[0004] In order to realize functions such as camera shooting, a light sensing element is often placed in the light sensing element setting area of the display panel. The ambient light can pass through the light sensing element setting area to the light sensing element to realize functions such as camera shooting. The light sensing element setting area can also display images, thereby realizing full-screen display. In order to reduce the reflectivity of ambient light, a polarizer is generally used in the display panel, but the transmittance of the polarizer is too low, which affects the brightness of light reaching the light sensing element. If the polarizer in the light sensing element setting area is removed, the reflectivity of the light sensing element setting area increases, affecting the user experience. SUMMARY

[0005] The present application provides a display panel and a display device to balance the transmittance and reflectivity of the light sensing element setting area, increase the brightness of light passing through the light sensing element setting area, and reduce the reflectivity of the light sensing element setting area.

[0006] In a first aspect, an embodiment of the present application provides a display panel, comprising:

[0007] a display area, the display area comprising a first display area, a second display area and a light sensing element setting area, the first display area at least partially surrounding the second display area, and the second display area surrounding the light sensing element setting area;

[0008] a substrate;

[0009] a plurality of sub-pixels located in the display area on one side of the substrate; the number of sub-pixels per unit area in the light sensing element setting area is less than the number of sub-pixels per unit area in the first display area;

[0010] A plurality of color resist and black matrix are located on the side of the plurality of sub-pixels away from the substrate, the black matrix surrounds to form an opening, the vertical projection of the sub-pixel on the substrate is located in the vertical projection of at least part of the opening on the substrate, the vertical projection of the color resist on the substrate overlaps with the vertical projection of at least part of the opening on the substrate, and the color resist is arranged one by one corresponding to the sub-pixel.

[0011] Wherein, the area of the black matrix per unit area in the second display area is greater than or equal to the area of the black matrix per unit area in the first display area, and the area of the black matrix per unit area in the first display area is greater than the area of the black matrix per unit area in the light sensing element setting area.

[0012] In a second aspect, the embodiment of the present application provides a display device comprising the display panel of the first aspect.

[0013] In the embodiment of the present application, the display panel comprises a plurality of color resist, when the external environment light irradiates the sub-pixel in the display panel, the external environment light reflected by the sub-pixel is weakened after passing through the color resist corresponding to the sub-pixel, thereby reducing the reflectivity of the light sensing element setting area. The display panel further comprises a black matrix, in the direction perpendicular to the substrate, the black matrix does not overlap with the sub-pixel. When the external environment light irradiates the area outside the sub-pixel in the display panel, at least part of the reflected external environment light can be absorbed by the black matrix, thereby reducing the reflectivity of the light sensing element setting area. Further, the embodiment of the present application further sets that the area of the black matrix per unit area in the second display area is greater than or equal to the area of the black matrix per unit area in the first display area, that is, the pattern density of the black matrix in the second display area is greater than the pattern density of the black matrix in the first display area, so that the second display area has lower reflectivity than the first display area, so as to reduce the overall reflectivity of the display area as much as possible. The area of the black matrix per unit area in the first display area is greater than the area of the black matrix per unit area in the light sensing element setting area, that is, the pattern density of the black matrix in the first display area is greater than the pattern density of the black matrix in the light sensing element setting area, so as to prevent too many black matrices from being arranged in the light sensing element setting area, thereby increasing the brightness of the light passing through the light sensing element setting area. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A top view structural schematic diagram of a display panel is provided for the embodiment of the present application;

[0015] Figure 2 A top view structural schematic diagram of a display panel is provided for the embodiment of the present application; Figure 1 An enlarged structural schematic diagram of the S1 area in the embodiment is provided;

[0016] Figure 3 An enlarged structural schematic diagram of the S1 area in the embodiment is provided; Figure 1 An enlarged structural schematic diagram of the S1 area in the embodiment is provided;

[0017] Figure 4 For the Figure 2 Schematic diagram of the cross-sectional structure of AA';

[0018] Figure 5 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0019] Figure 6 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0020] Figure 7 for Figure 2 A schematic diagram of an enlarged structure of the S2 region;

[0021] Figure 8 A partial structural top view of another display panel provided by an embodiment of the present invention;

[0022] Figure 9 For the Figure 8 Schematic diagram of the cross-sectional structure of BB';

[0023] Figure 10 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0024] Figure 11 A partial structural top view of another display panel provided by an embodiment of the present invention;

[0025] Figure 12 For the Figure 11 Schematic diagram of the cross-sectional structure of CC';

[0026] Figure 13 A partial structural top view of another display panel provided by an embodiment of the present invention;

[0027] Figure 14 For the Figure 13 Schematic diagram of the cross-sectional structure of DD';

[0028] Figure 15 A partial structural top view of another display panel provided by an embodiment of the present invention;

[0029] Figure 16 For the Figure 15 Schematic diagram of the cross-sectional structure of EE';

[0030] Figure 17 A partial structural top view of another display panel provided by an embodiment of the present invention;

[0031] Figure 18 For the Figure 17 Schematic diagram of the cross-sectional structure of FF';

[0032] Figure 19 A schematic cross-sectional view of another display panel provided by an embodiment of the present invention;

[0033] Figure 20 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0035] Figure 1 A schematic diagram of a top view of a display panel provided by an embodiment of the present invention is shown. Figure 2 for Figure 1 A schematic diagram of an enlarged structure of the S1 region in the middle. Figure 3 for Figure 1 Another enlarged structural diagram of the S1 region, Figure 4 For the Figure 2 Schematic diagram of the cross-sectional structure of AA', combined with reference Figures 1-4 The display panel includes a display area 100, which includes a first display area 101, a second display area 102 and a light sensing element setting area 103. The first display area 101 at least partially surrounds the second display area 102 ( Figure 1The second display area 102 is arranged around the light sensing element arrangement area 103. The display panel comprises a plurality of sub-pixels 20, a plurality of color resist 40 and a black matrix 30. The plurality of sub-pixels 20 are located in the display area 100 on one side of the substrate 10. The number of sub-pixels 20 per unit area in the light sensing element arrangement area 103 is less than the number of sub-pixels 20 per unit area in the first display area 101, that is, the sub-pixel density in the light sensing element arrangement area 103 is less than the sub-pixel density in the first display area 101, so that the area between adjacent sub-pixels 20 in the light sensing element arrangement area 103 can transmit ambient light, thereby increasing the brightness of light transmitted through the light sensing element arrangement area 103. The plurality of color resist 40 and the black matrix 30 are located away from the substrate 10 on one side of the plurality of sub-pixels 20. The black matrix 30 surrounds the opening 310, and the opening 310 is an area where the black matrix 30 is not arranged. The opening 310 can be formed by a mask etching process on the black matrix layer, for example. The vertical projection of the sub-pixel 20 on the substrate 10 is located within the vertical projection of at least part of the opening 310 on the substrate 10, and the vertical projection of the color resist 40 on the substrate 10 overlaps the vertical projection of at least part of the opening 310 on the substrate 10. The color resist 40 is arranged one-to-one with the sub-pixel 20. In the embodiments of the present application, at least part of the opening 310 refers to at least part of the plurality of openings 310, for example, at least 10 of the 100 openings 310. In the second display area 102, the area of the black matrix 30 per unit area is greater than or equal to the area of the black matrix 30 per unit area in the first display area 101, and the area of the black matrix 30 per unit area in the first display area 101 is greater than the area of the black matrix 30 per unit area in the light sensing element arrangement area 103.

[0036] In the embodiment of the present application, the display panel comprises a plurality of color resist 40. When ambient light is irradiated into the display panel to the sub-pixel 20, the ambient light reflected by the sub-pixel 20 is weakened after passing through the color resist 40 corresponding to the sub-pixel 20, thereby reducing the reflectivity of the light sensing element arrangement area 103. The display panel further comprises a black matrix 30. In the direction perpendicular to the substrate 10, the black matrix 30 does not overlap with the sub-pixel 20. When ambient light is irradiated into the display panel to the area outside the sub-pixel 20, at least part of the reflected ambient light can be absorbed by the black matrix 30, thereby reducing the reflectivity of the light sensing element arrangement area 103. Further, in the embodiment of the present application, the area of the black matrix 30 per unit area in the second display area 102 is greater than or equal to the area of the black matrix 30 per unit area in the first display area 101, that is, the pattern density of the black matrix 30 in the second display area 102 is greater than the pattern density of the black matrix 30 in the first display area 101, so that the second display area 102 has lower reflectivity than the first display area 101, so as to reduce the overall reflectivity of the display area 100 as much as possible. The area of the black matrix 30 per unit area in the first display area 101 is greater than the area of the black matrix 30 per unit area in the light sensing element arrangement area 103, that is, the pattern density of the black matrix 30 in the first display area 101 is greater than the pattern density of the black matrix 30 in the light sensing element arrangement area 103, so as to prevent too many black matrixes 30 from being arranged in the light sensing element arrangement area 103, thereby increasing the brightness of the light passing through the light sensing element arrangement area 103.

[0037] Exemplarily, in some embodiments, the area of the black matrix 30 per unit area in the second display area 102 is greater than the area of the black matrix 30 per unit area in the first display area 101. In other embodiments, the area of the black matrix 30 per unit area in the second display area 102 is equal to the area of the black matrix 30 per unit area in the first display area 101. It should be noted that the reflectivity of the first display area 101, the second display area 102 and the light sensing element arrangement area 103 is not only related to the area of the black matrix 30 per unit area, but also related to other factors, for example, it can also be related to the thickness of the black matrix 30, the reflectivity at the position of the opening 310, etc. Among them, the reflectivity at the position of the opening 310 can include, for example, the area and reflectivity of the metal film layer exposed by the opening 310, or the reflectivity of the non-metal film layer exposed by the opening 310.

[0038] Exemplarily, with reference to Figure 2 , Figure 3 and Figure 4The number of sub-pixels 20 per unit area in the second display area 102 is equal to the number of sub-pixels 20 per unit area in the light-sensing element arrangement area 103. In the embodiment of the present application, the sub-pixel density in the second display area 102 is equal to the sub-pixel density in the light-sensing element arrangement area 103, so that the second display area 102 and the light-sensing element arrangement area 103 have the same sub-pixel 20 arrangement when the sub-pixels 20 are formed, thereby reducing the difficulty of manufacturing the display panel. In other embodiments, the number of sub-pixels 20 per unit area in the second display area 102 can be less than the number of sub-pixels 20 per unit area in the first display area 101, and the number of sub-pixels 20 per unit area in the second display area 102 can be greater than the number of sub-pixels 20 per unit area in the light-sensing element arrangement area 103, that is, the second display area 102 is used as a transition area for display, thereby optimizing the visual experience of the display area 100.

[0039] Exemplarily, referring to Figure 2 , Figure 3 and Figure 4 , in the direction perpendicular to the substrate 10, the area between the adjacent black matrices 30 in the light-sensing element arrangement area 103 is a light-transmitting area, and when the ambient light irradiates the light-sensing element arrangement area 103, the ambient light can pass through the light-transmitting area in the light-sensing element arrangement area 103 and irradiate the backlight side of the display panel.

[0040] Optionally, referring to Figure 2 , Figure 3 and Figure 4 , the black matrix 30 in the second display area 102 covers all areas outside the opening 310. In the embodiment of the present application, in the second display area 102, the sub-pixels 20 can be arranged in at least part of the openings 310, and all areas outside the openings 310 are covered by the black matrix 30, so that the reflectivity of the second display area 102 is the lowest, thereby reducing the overall reflectivity of the display area 100. In other embodiments, a plurality of discrete black matrices 30 can be arranged in the second display area 102, and the area between the adjacent black matrices 30 is a light-transmitting area.

[0041] Optionally, referring to Figure 2 , Figure 3 and Figure 4The display panel further comprises a plurality of thin film transistors 60. The plurality of thin film transistors 60 comprises a first thin film transistor 601. The first thin film transistor 601 is located in the second display area 102, and is located between the black matrix 30 and the substrate 10 and is electrically connected with the sub-pixel 20 in the light-sensing element arrangement area 103. In the embodiment of the present application, the first thin film transistor 601 for driving the sub-pixel 20 in the light-sensing element arrangement area 103 is arranged in the second display area 102, so as to expand the light transmission area in the light-sensing element arrangement area 103 and increase the brightness of the light transmitted through the light-sensing element arrangement area 103. In the embodiment of the present application, the first thin film transistor 601 arranged in the second display area 102 is covered by the black matrix 30, and the ambient light irradiated to the first thin film transistor 601 is absorbed by the black matrix 30, so as to avoid the reflection of the ambient light by the first thin film transistor 601 and reduce the overall reflectivity of the display area 100.

[0042] Exemplarily, referring to FIG. 1, Figure 3 , in order to show the arrangement of the first thin film transistor 601 in the second display area 102, Figure 3 , the black matrix 30 and other structures in the second display area 102 are omitted. The first thin film transistor 601 is arranged in the region outside the opening 310 in the second display area 102. It should be noted that the arrangement of the first thin film transistor 601 is not limited in the embodiment of the present application.

[0043] Exemplarily, referring to FIG. 1, Figure 3 , the display panel further comprises a first wire 81 Figure 3 , in the embodiment, only one first wire 81 is shown, which is not a limitation of the present application. One end of the first wire 81 is electrically connected with the first thin film transistor 601, and the other end of the first wire 81 is electrically connected with the sub-pixel 20 in the light-sensing element arrangement area 103. The transmittance of the first wire 81 is greater than a first preset value. For example, the transmittance of the first wire 81 is greater than 90%, 95% or 99%, that is, the first wire 81 is a transparent wire, so as to reduce the reflectivity of the first wire 81 to the ambient light in the light-sensing element arrangement area 103.

[0044] Optionally, referring to FIG. 1, Figure 2 , Figure 3 and Figure 4The plurality of thin film transistors 60 further comprises a second thin film transistor 602 and a third thin film transistor 603. The second thin film transistor 602 is located in the second display area 102 and is electrically connected to the sub-pixel 20 in the second display area 102. The third thin film transistor 603 is located in the first display area 101, and the third thin film transistor 603 is located between the sub-pixel 20 in the first display area 101 and the substrate 10, and the third thin film transistor 603 is electrically connected to the sub-pixel 20 in the first display area 101. The area of the vertical projection of the first thin film transistor 601 and the second thin film transistor 602 on the substrate 10 is less than the area of the vertical projection of the third thin film transistor 603 on the substrate 10. Since the first thin film transistor 601 used to drive the sub-pixel 20 in the light sensing element arrangement area 103 is arranged in the second display area 102, the second display area 102 includes the first thin film transistor 601 and the second thin film transistor 602. Therefore, in the embodiment of the present application, the size of the first thin film transistor 601 and the second thin film transistor 602 is reduced to arrange the first thin film transistor 601 and the second thin film transistor 602 in the limited area of the second display area 102, and the difficulty of arranging the first thin film transistor 601 and the second thin film transistor 602 is reduced. In other embodiments, the area of the vertical projection of the first thin film transistor 601 and the second thin film transistor 602 on the substrate 10 can be equal to the area of the vertical projection of the third thin film transistor 603 on the substrate 10.

[0045] Exemplarily, referring to Figure 2 , Figure 3 and Figure 4 , the second thin film transistor 602 is located in the second display area 102, and the second thin film transistor 602 is located between the sub-pixel 20 in the second display area 102 and the substrate 10. In other embodiments, the second thin film transistor 602 can also not overlap the sub-pixel 20, and the present application does not limit this.

[0046] Optionally, referring to Figure 2 and Figure 3 , the edge of the sub-pixel 20 in the substrate 10 is projected as a first pattern, and the edge of the opening 310 in the light sensing element arrangement area 103 is projected as a second pattern on the substrate 10, and the shape of the second pattern is consistent with the shape of the first pattern. That is, the shape of the second pattern is the same as the shape of the first pattern, but the size of the second pattern is not equal to the size of the first pattern. That is, the first pattern is similar to the second pattern. In the embodiment of the present application, the edge of the sub-pixel 20 in the light sensing element arrangement area 103 is similar to the edge of the opening 310, so as to minimize the area of the black matrix 30 in the light sensing element arrangement area 103 and increase the area of the light transmission area in the light sensing element arrangement area 103, thereby increasing the brightness of the light passing through the light sensing element arrangement area 103.

[0047] Exemplarily, referring to Figure 2 and Figure 3 , the edge of the sub-pixel 20 is projected on the substrate 10 as a first rectangle, and the edge of the opening 310 in the light-sensing element setting area 103 is vertically projected on the substrate 10 as a second rectangle.

[0048] On the basis of reducing the overall reflectivity of the display area 100, at least one of the thickness of the black matrix 30, the distance between the edge of the opening 310 and the edge of the sub-pixel 20, and the second opening 312 opened in the second transition area 102 can be set to balance the reflectivity of the first display area 101, the second display area 102, and the light-sensing element setting area 103, so that the reflectivity difference between any two adjacent areas among the first display area 101, the second display area 102, and the light-sensing element setting area 103 is less than a second preset value, which can be 10%, 5%, or 1%, for example.

[0049] Figure 5 Another cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is shown in FIG. 3. As shown in FIG. 3, the display panel includes a substrate 10, a black matrix 30, a first display area 101, a second display area 102, a light-sensing element setting area 103, and a plurality of sub-pixels 20. Figure 5 The black matrix 30 includes a first black matrix 31 located in the first display area 101, a second black matrix 32 located in the second display area 102, and a third black matrix 33 located in the light-sensing element setting area 103. The thickness of the second black matrix 32 is less than the thickness of the third black matrix 33, and the thickness of the third black matrix 33 is less than the thickness of the first black matrix 31. Since the area of the black matrix 30 per unit area in the second display area 102 is greater than or equal to the area of the black matrix 30 per unit area in the first display area 101, and the area of the black matrix 30 per unit area in the first display area 101 is greater than the area of the black matrix 30 per unit area in the light-sensing element setting area 103, the reflectivity per unit area in the second display area 102 is greater than the reflectivity per unit area in the first display area 101, and the reflectivity per unit area in the first display area 101 is greater than the reflectivity per unit area in the light-sensing element setting area 103. In the embodiment of the present application, the first black matrix 31 in the first display area 101 with the highest reflectivity per unit area has the largest thickness, the second black matrix 32 in the second display area 102 with the lowest reflectivity per unit area has the smallest thickness, and the third black matrix 33 in the light-sensing element setting area 103 with the medium reflectivity per unit area has the medium thickness, so that on the basis of reducing the overall reflectivity of the display area 100, the reflectivity of the first display area 101, the second display area 102, and the light-sensing element setting area 103 is balanced, and the reflectivity difference between any two adjacent areas among the first display area 101, the second display area 102, and the light-sensing element setting area 103 is as small as possible.

[0050] Figure 6 Another cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is shown in FIG. 3. As shown in FIG. 3, the display panel includes a substrate 10, a black matrix 30, a first display area 101, a second display area 102, a light-sensing element setting area 103, and a plurality of sub-pixels 20. Figure 6The thickness of the second black matrix 32 gradually increases along the direction from the first display area 101 to the light sensing element arrangement area 103. In the embodiment of the present application, in order to match the reflectivity per unit area in the first display area 101 being greater than the reflectivity per unit area in the light sensing element arrangement area 103, the thickness of the second black matrix 32 gradually increases along the direction from the first display area 101 to the light sensing element arrangement area 103, and the reflectivity per unit area in the second display area 102 gradually decreases along the direction from the first display area 101 to the light sensing element arrangement area 103, so that the second display area 102 is a transition area of reflectivity per unit area, and the visual experience is optimized.

[0051] Figure 7 For Figure 2 An enlarged structural schematic diagram of the S2 area in FIG. 8 is shown in FIG. 9, which shows Figure 2 And Figure 7The plurality of sub-pixels 20 are arranged in a first direction X and a second direction Y, and the first direction X and the second direction Y are perpendicular to each other. In the first direction X, the distance between the vertical projection of the edge of the opening 310 on the substrate 10 and the vertical projection of the sub-pixel 20 exposed by the opening 310 on the substrate 10 is a first distance D1. In the second direction Y, the distance between the vertical projection of the edge of the opening 310 on the substrate 10 and the vertical projection of the sub-pixel 20 exposed by the opening 310 on the substrate 10 is a second distance D2. The first distance D1 in the second display area 102 is greater than the first distance D1 in the light sensing element arrangement area 103, and the first distance D1 in the light sensing element arrangement area 103 is greater than the first distance D1 in the first display area 101; and / or, the second distance D2 in the second display area 102 is greater than the second distance D2 in the light sensing element arrangement area 103, and the second distance D2 in the light sensing element arrangement area 103 is greater than the second distance D2 in the first display area 101. Since the farther the distance between the edge of the sub-pixel 20 and the edge of the opening 310, the more the metal film layer in the sub-pixel 20 or the metal film layer below the sub-pixel 20 is exposed, the higher the reflectivity at the opening 310; the closer the distance between the edge of the sub-pixel 20 and the edge of the opening 310, the less the metal film layer in the sub-pixel 20 or the metal film layer below the sub-pixel 20 is exposed, and the lower the reflectivity at the opening 310. The metal film layer exposed by the opening 310 will be further described later. Since the area of the black matrix 30 per unit area in the second display area 102 is greater than or equal to the area of the black matrix 30 per unit area in the first display area 101, the area of the black matrix 30 per unit area in the first display area 101 is greater than the area of the black matrix 30 per unit area in the light sensing element arrangement area 103, the reflectivity per unit area in the second display area 102 is greater than the reflectivity per unit area in the first display area 101, and the reflectivity per unit area in the first display area 101 is greater than the reflectivity per unit area in the light sensing element arrangement area 103, in the embodiment of the present application, the area of the metal film layer exposed by the opening 310 in the first display area 101 with the highest reflectivity per unit area is the smallest, the area of the metal film layer exposed by the opening 310 in the second display area 102 with the lowest reflectivity per unit area is the largest, and the metal film layer exposed by the opening 310 in the light sensing element arrangement area 103 with the medium reflectivity per unit area has a medium area, so that on the basis of reducing the overall reflectivity of the display area 100, the reflectivity of the first display area 101, the second display area 102 and the light sensing element arrangement area 103 is balanced, and the reflectivity difference between any two of the first display area 101, the second display area 102 and the light sensing element arrangement area 103 is as small as possible.

[0052] For clarity, the first distance D1 in the first display area 101, the second display area 102 and the light sensing element setting area 103 is respectively referred to as a first lateral distance D11, a second lateral distance D12 and a third lateral distance D13, and the second distance D2 in the first display area 101, the second display area 102 and the light sensing element setting area 103 is respectively referred to as a first longitudinal distance D21, a second longitudinal distance D22 and a third longitudinal distance D23. In an embodiment, D12>D13>D11 can be set. In another embodiment, D22>D23>D21 can be set. In another embodiment, D12>D13>D11 and D22>D23>D21 can also be set.

[0053] It should be noted that the above embodiments can be combined with each other, for example, when the thickness of the second black matrix 32 is less than the thickness of the third black matrix 33, and the thickness of the third black matrix 33 is less than the thickness of the first black matrix 31, the first distance D1 in the second display area 102 is also set to be greater than the first distance D1 in the light sensing element setting area 103, and the first distance D1 in the light sensing element setting area 103 is greater than the first distance D1 in the first display area 101; and / or, the second distance D2 in the second display area 102 is greater than the second distance D2 in the light sensing element setting area 103, and the second distance D2 in the light sensing element setting area 103 is greater than the second distance D2 in the first display area 101. By setting the distance between the edge of the opening 310 and the edge of the sub-pixel 20 and the thickness of the black matrix 30, the overall reflectivity of the display area 100 is reduced, and the reflectivity of the first display area 101, the second display area 102 and the light sensing element setting area 103 is balanced.

[0054] For example, referring to Figure 2 and Figure 3 , a plurality of pixel units are arranged in the first direction X and the second direction Y in the light sensing element setting area 103, and the pixel units include three sub-pixels 20 arranged in a triangular shape. In the same pixel unit, two sub-pixels 20 are located in the same column in the second direction Y, and the other sub-pixel 20 is located in a different column from the two sub-pixels 20. In other embodiments, the display panel can also have other sub-pixel arrangement modes, which are not limited by the present application.

[0055] For example, referring to Figure 2 and Figure 3 , in the light sensing element setting area 103, the pixel units composed of three sub-pixels 20 are arranged in an array, and the area between adjacent two pixel units is a light transmission area. In other embodiments, the three sub-pixels 20 in one pixel unit can also be distributed discretely, and the area between adjacent sub-pixels 20 is a light transmission area.

[0056] Figure 8Another part structure top view of the display panel provided by the embodiment of the present application, Figure 9 for the embodiment of the present application, Figure 8 The cross-sectional structure schematic diagram of the BB' is shown in Figure 8 and Figure 9 The plurality of sub-pixels 20 include display sub-pixels 201 and dummy sub-pixels 202. The first display area 101 includes display sub-pixels 201, and the second display area 102 includes display sub-pixels 201 and dummy sub-pixels 202. The number of display sub-pixels 201 per unit area in the second display area 102 is less than the number of display sub-pixels 201 per unit area in the first display area 101. The first display area 101 is a main display area, and the second display area 102 is a transition display area. The plurality of openings 310 include first openings 311 and second openings 312. The display sub-pixels 201 are vertically projected on the substrate 10 within the first openings 311 vertically projected on the substrate 10, and the first openings 311 expose the display sub-pixels 201. The dummy sub-pixels 202 are vertically projected on the substrate 10 within at least part of the second openings 312 vertically projected on the substrate 10, and at least part of the second openings 312 expose the dummy sub-pixels 202. Among them, the display sub-pixels 201 are used for normal light-emitting display, and the dummy sub-pixels 202 are not used for light-emitting display. In the embodiment of the present application, in addition to the first openings 311 exposing the display sub-pixels 201, the second openings 312 exposing the dummy sub-pixels 202 are also provided in the second display area 102. Compared with covering the black matrix 30 in all areas other than the first openings 311, the coverage area of the black matrix 30 is relatively reduced to balance the reflectivity of the first display area 101, the second display area 102, and the light sensing element setting area 103, so that the reflectivity difference between any two of the first display area 101, the second display area 102, and the light sensing element setting area 103 is as small as possible.

[0057] Exemplarily, referring to Figure 8 and Figure 9 The light sensing element setting area 103 includes display sub-pixels 201, and the light sensing element setting area 103 does not include dummy sub-pixels 202. The dummy sub-pixels 202 are only arranged in the second display area 102. The dummy sub-pixels 202 are correspondingly arranged with the second thin film transistors 602 electrically connected thereto. In other embodiments, only the dummy sub-pixels 202 can be arranged, and the second thin film transistors 602 electrically connected to the dummy sub-pixels 202 are not arranged.

[0058] Optionally, referring to Figure 8 and Figure 9The area of the first opening 311 in the vertical projection of the substrate 10 is greater than the area of the second opening 312 in the vertical projection of the substrate 10. In the embodiment of the present application, in the second display area 102, in addition to the first opening 311 exposing the display sub-pixel 201, the second opening 312 exposing the dummy sub-pixel 202 is also provided. Compared with covering the black matrix 30 in all areas except the first opening 311, the coverage area of the black matrix 30 is relatively reduced, and the reflectivity of the second display area 102 is increased. Since the dummy sub-pixel 202 does not display images, the dummy sub-pixel 202 can be arranged at the position of the missing sub-pixel, and the area of the second opening 312 where the dummy sub-pixel 202 is located is set to be smaller than the area of the first opening 311, so as to ensure that the reflectivity of the second display area 102 is not too large, and the overall display area 100 has a relatively low reflectivity. The position of the missing sub-pixel refers to the position where the sub-pixel 20 is not arranged in the second display area 102 compared with the sub-pixel density in the first display area 101.

[0059] Optionally, referring to Figure 9 The sub-pixel 20 includes a first electrode 21, an organic light-emitting functional layer 22, and a second electrode 23. The organic light-emitting functional layer 22 is located between the first electrode 21 and the second electrode 23. The display panel further includes a pixel definition layer 50 located between the first electrode 21 and the second electrode 33. The pixel definition layer 50 includes a plurality of through holes 51. The through hole 51 in the vertical projection of the substrate 10 is located in the vertical projection of the first opening 311 in the substrate 10. At the position of the second opening 312, no through hole 51 is arranged on the pixel definition layer 50. In the display sub-pixel 201, the organic light-emitting functional layer 22 is located in the through hole 51, and the organic light-emitting functional layer 22 is in contact with the first electrode 21, so that the first electrode 21 and the second electrode 23 can inject holes and electrons into the organic light-emitting functional layer 22. The holes and electrons recombine in the organic light-emitting functional layer 22 to form excitons, and the excitons transition to make the display sub-pixel 201 emit light and display. In the dummy sub-pixel 202, the first electrode 21 and the organic light-emitting functional layer 22 are separated by the pixel definition layer 50, and the first electrode 21 and the organic light-emitting functional layer 22 are electrically insulated, so that the dummy sub-pixel 202 cannot emit light and display.

[0060] Exemplarily, referring to Figure 9The metal film layer in the sub-pixel 20 mainly includes the first electrode 21, which is a reflective electrode. The display panel is a top emission display panel. In other embodiments, the display panel can also be a bottom emission display panel. The metal film layer below the sub-pixel 20 mainly includes the thin film transistor 60 and various signal lines (not shown in the figure), such as data lines, scan lines, and power lines. The thin film transistor 60 includes a source electrode 61, a semiconductor layer 62, a gate electrode 63, and a drain electrode 64. The source electrode 61, the gate electrode 63, and the drain electrode 64 can include metal materials and are metal film layers.

[0061] For example, referring to Figure 9 In the embodiments of the present application, the vertical projection of the sub-pixel 20 on the substrate 10 is the vertical projection of the organic light-emitting functional layer 22 on the substrate 10. The vertical projection of the sub-pixel 20 on the substrate 10 is located within the vertical projection of the opening 310 on the substrate 10. As shown in Figure 9 In some embodiments, the color resistance 40 can be located only in the opening 310. In other embodiments, part of the color resistance 40 can be located in the opening 310, and another part of the color resistance 40 can be located away from the substrate 10 on the side of the black matrix 30. The vertical projection of the organic light-emitting functional layer 22 on the substrate 10 is located within the vertical projection of the first electrode 21 on the substrate 10, and the vertical projection of the opening 310 on the substrate 10 is located within the vertical projection of the first electrode 21 on the substrate 10. The black matrix 30 is used to shield the edges of the first electrode 21. Since the first electrode 21 does not completely coincide with the thin film transistor 60 in the direction perpendicular to the substrate 10, the black matrix 30 is also used to shield the thin film transistor 60 to prevent the thin film transistor 60 from reflecting external ambient light.

[0062] Optionally, referring to Figure 8 and Figure 9 The display panel further includes a plurality of thin film transistors 60, which are electrically connected to the first electrode 21. The plurality of sub-pixels 20 are arranged in an array along a first direction X and a second direction Y, and the first direction X and the second direction Y intersect. The number of a row of thin film transistors 60 arranged along the first direction X in the first display area 101 is equal to the number of a row of thin film transistors 60 arranged along the first direction X in the second display area 102. In the embodiments of the present application, the number of a row of thin film transistors 60 in the first display area 101 is equal to the number of a row of thin film transistors 60 in the second display area 102. Therefore, the number of a row of thin film transistors 60 driven by the scan lines (not shown in the figure) in the first display area 101 and the second display area 102 is the same, and the scan lines in the first display area 101 and the second display area 102 have the same load, thereby avoiding the occurrence of display unevenness caused by unequal loads.

[0063] Figure 10Another cross-sectional structure diagram of the display panel is provided for the embodiment of the present application, referring to Figure 10 The number of the first openings 311 in the second display area 102 is greater than the number of the second openings 312 in the second display area 102. In the embodiment of the present application, since the dummy sub-pixels 202 do not display images, the dummy sub-pixels 202 can be arranged at the positions of the vacant sub-pixels, and the number of the areas of the second openings 312 where the dummy sub-pixels 202 are arranged is less than the number of the first openings 311, so as to ensure that the reflectivity of the second display area 102 is not too large, and the overall display area 100 has a relatively low reflectivity. In other embodiments, the area of the first opening 311 projected vertically on the substrate 10 can be greater than the area of the second opening 312 projected vertically on the substrate 10, and the number of the first openings 311 in the second display area 102 is greater than the number of the second openings 312 in the second display area 102, which is not limited in the present application.

[0064] Exemplarily, referring to Figure 8 and Figure 10 In the first direction X, the distance between any two adjacent second openings 312 arranged in a row is equal, and the distance between any two adjacent dummy sub-pixels 202 arranged in a row is equal. The second openings 312 and the dummy sub-pixels 202 in the second openings 312 are arranged in a uniform distribution, and the reflection of the second display area 102 to the external ambient light is relatively uniform.

[0065] Figure 11 Another partial structure top view of the display panel is provided for the embodiment of the present application, Figure 12 is a cross-sectional structure diagram along CC’ in Figure 11 , referring to Figure 11 and Figure 12The plurality of openings 310 include a first opening 311 and a second opening 312. The vertical projection of the sub-pixel 20 on the substrate 10 is located within the vertical projection of the first opening 311 on the substrate 10, and at least a portion of the second opening 312 is located in the region where the gaps between the sub-pixels 20 are located. In various embodiments of the present invention, the region where the gaps between the sub-pixels 20 are located is the region outside the sub-pixels 20. In the embodiment of the present invention, in addition to the first opening 311 that exposes the sub-pixel 20 (specifically, the display sub-pixel 201), the second opening 312 is also provided in the second display area 102. At least a portion of the second opening 312 does not overlap with the sub-pixel 20. Compared to covering all areas outside the first opening 311 with the black matrix 30, the coverage area of ​​the black matrix 30 is relatively reduced, thereby balancing the reflectivity of the first display area 101, the second display area 102, and the light sensing element setting area 103, so that the difference in reflectivity between adjacent areas of the first display area 101, the second display area 102, and the light sensing element setting area 103 is minimized.

[0066] For example, refer to Figure 11 and Figure 12 , the second openings 312 also do not overlap with the thin film transistor 60. All of the second openings 312 are disposed in the region where the gaps between the sub-pixels 20 are located. In other embodiments, when some of the second openings 312 are located in the region where the gaps between the sub-pixels 20 are located, another portion of the second openings 312 may be disposed to overlap with the thin film transistor 60, and / or another portion of the second openings 312 may overlap with the dummy sub-pixel.

[0067] For example, refer to Figure 11 and Figure 12 , the display panel is hollowed out at the second opening 312, that is, no color resist 40 is provided at the second opening 312. In other embodiments, a color resist 40 may also be provided in the second opening 312, and the present invention is not limited thereto.

[0068] For example, refer to Figure 11 The number of first openings 311 per unit area in the first display area 101 is equal to the sum of the number of first openings 311 and second openings 312 per unit area in the second display area 102. This arrangement has the advantage of providing second openings 312 at all vacant sub-pixel locations in the second display area 102, resulting in a uniform distribution of openings 310 in the second display area 102 and a more uniform overall reflection of ambient light by the second display area 102.

[0069] Figure 13 A partial structural top view of another display panel provided by an embodiment of the present invention, Figure 14 For the Figure 13 DD' cross-sectional structure diagram, refer to Figure 13 and Figure 14The plurality of thin film transistors 60 further comprises a second thin film transistor 602, the second thin film transistor 602 is located in the second display area 102 and is electrically connected with the sub-pixel 20 in the second display area 102, at least part of the second thin film transistor 602 is located in the region where the gap between the sub-pixels 20 is located. The plurality of openings 310 comprises a first opening 311 and a second opening 312, the sub-pixel 20 is located in the vertical projection of the substrate 10, the first opening 311 is located in the vertical projection of the substrate 10, the second thin film transistor 602 located in the region where the gap between the sub-pixels 20 is located is located in the vertical projection of the substrate 10, at least part of the second opening 312 is located in the vertical projection of the substrate 10. In the embodiment of the present application, in addition to the first opening 311 which exposes the sub-pixel 20 (specifically the display sub-pixel 201) in the second display area 102, the second opening 312 is also provided, at least part of the second opening 312 exposes the second thin film transistor 602, compared with covering all the regions outside the first opening 311 with the black matrix 30, the coverage area of the black matrix 30 is relatively reduced, so as to balance the reflectivity of the first display area 101, the second display area 102 and the light sensing element setting area 103.

[0070] Exemplarily, referring to Figure 13 and Figure 14 , the second opening 312 is arranged in part of the vacant sub-pixel positions in the second display area 102. Along the first direction X, the distance between any two adjacent second openings 312 arranged in a row is equal, and the distance between any two adjacent second thin film transistors 602 arranged in a row is equal. The second opening 312 and the second thin film transistor 602 in the second opening 312 are arranged to be uniformly distributed, and the reflection of the second display area 102 to the external environment light is relatively uniform as a whole. In other embodiments, the second opening 312 can also be arranged in all the vacant sub-pixel positions in the second display area 102, that is, the number of the first opening 311 per unit area in the first display area 101 is equal to the sum of the number of the first opening 311 and the number of the second opening 312 per unit area in the second display area 102. The advantage of such arrangement is that the second opening 312 is arranged in all the vacant sub-pixel positions in the second display area 102, so that the openings 310 in the second display area 102 are uniformly distributed, and the reflection of the second display area 102 to the external environment light is relatively uniform as a whole.

[0071] Figure 15 Another partial structure top view of a display panel provided by the embodiment of the present application is shown in Figure 16 is a cross-sectional structure schematic view along the EE' in Figure 15 , referring to Figure 15 and Figure 16The display panel further comprises a plurality of thin film transistors 60, and the plurality of thin film transistors 60 comprises a first thin film transistor 601. The first thin film transistor 601 is located in the light sensing element arrangement area 103, and is located between the sub-pixel 20 and the substrate 10 in the light sensing element arrangement area 103, and is electrically connected with the sub-pixel 20 of the light sensing element arrangement area 103. The vertical projection of the first thin film transistor 601 on the substrate 10 is located in the joint projection of the sub-pixel 20 and the black matrix 30 on the substrate 10. In the embodiment of the present application, the first thin film transistor 601 driving the sub-pixel 20 in the light sensing element arrangement area 103 is arranged in the light sensing element arrangement area 103, the distance between the sub-pixel 20 and the first thin film transistor 601 is short, which is beneficial to simplify the electrical connection wiring between the sub-pixel 20 and the first thin film transistor 601. In the light sensing element arrangement area 103, the first thin film transistor 601 is covered by the sub-pixel 20 and the black matrix 30, so that the black matrix 30 can prevent the reflection of the first thin film transistor 601 to the external environment light, and the overall reflectivity of the display area 100 is reduced.

[0072] Optionally, referring to Figure 15 In the light sensing element arrangement area 103, the outer edge of the black matrix 30 comprises a curve. It can be understood that if the outer edge of the black matrix 30 is a straight line, the light energy is distributed on both sides of the straight line, forming a plurality of bright and dark stripes parallel to the extension direction of the straight line. If the outer edge of the black matrix 30 is an arc line, the arc line is equivalent to a plurality of straight lines with different extension directions, then the light energy is distributed in a plurality of different directions, thereby weakening the diffraction phenomenon. In the embodiment of the present application, the outer edge of the black matrix 30 comprises a curve, thereby reducing the diffraction phenomenon of the light sensing element arrangement area 103.

[0073] Exemplarily, referring to Figure 15 The shape of the outer edge of the black matrix 30 is circular or elliptical. In other embodiments, the shape of the outer edge of the black matrix 30 can be other curves, which are not limited in the present application.

[0074] It should be noted that the above-mentioned embodiments can be combined with each other, and the present application gives some examples, but is not limited thereto.

[0075] Figure 17 Another partial structure top view of a display panel provided by the embodiment of the present application is shown in Figure 18 is a cross-sectional structure schematic view along FF' in Figure 17 Referring to Figure 17 and Figure 18The plurality of openings 310 includes a first opening 311 and a second opening 312. The plurality of subpixels 20 includes a display subpixel 201 and a dummy subpixel 202. The display subpixel 201 is located in the substrate substrate 10 vertical projection within the first opening 311 in the substrate substrate 10 vertical projection, and the first opening 311 exposes the display subpixel 201. The first part of the second opening 312 is located in the region where the gap between the subpixels 20 is located, and the first part of the second opening 312 also does not overlap the thin film transistor 60. The dummy subpixel 202 is located in the substrate substrate 10 vertical projection within the second part of the second opening 312 in the substrate substrate 10 vertical projection, and the second part of the second opening 312 exposes the dummy subpixel 202.

[0076] Figure 19 Another cross-sectional structure schematic diagram of a display panel provided by an embodiment of the present application is provided, referring to Figure 19 The black matrix 30 includes a first black matrix 31 located in the first display area 101, a second black matrix 32 located in the second display area 102, and a third black matrix 33 located in the light sensing element arrangement area 103. The thickness of the second black matrix 32 is less than the thickness of the third black matrix 33, and the thickness of the third black matrix 33 is less than the thickness of the first black matrix 31. The plurality of openings 310 includes a first opening 311 and a second opening 312. The display subpixel 201 is located in the substrate substrate 10 vertical projection within the first opening 311 in the substrate substrate 10 vertical projection, and the first opening 311 exposes the display subpixel 201. The dummy subpixel 202 is located in the substrate substrate 10 vertical projection within at least part of the second opening 312 in the substrate substrate 10 vertical projection, and at least part of the second opening 312 exposes the dummy subpixel 202. It should be noted that in other embodiments, on the basis of the embodiment shown in Figure 19 The first distance D1 in the second display area 102 is greater than the first distance D1 in the light sensing element arrangement area 103, and the first distance D1 in the light sensing element arrangement area 103 is greater than the first distance D1 in the first display area 101; and / or, the second distance D2 in the second display area 102 is greater than the second distance D2 in the light sensing element arrangement area 103, and the second distance D2 in the light sensing element arrangement area 103 is greater than the second distance D2 in the first display area 101. By setting the distance between the edges of the opening 310 and the edges of the subpixel 20, and the thickness of the black matrix 30.

[0077] An embodiment of the present application also provides a display device. Figure 20 A structure schematic diagram of a display device provided by an embodiment of the present application is provided, referring to Figure 20 The display device includes any one of the display panels 410 provided by the embodiments of the present application, Figure 20The middle arrow direction represents the light-emitting display direction of the display panel 410. The display device can be a mobile phone, a tablet computer, a smart wearable device, or the like.

[0078] Exemplarily, referring to Figure 20 The display device further includes a light-sensing element 420 located in the light-sensing element setting area 103. The ambient light passes through the light-sensing element setting area 103 of the display panel 410 and reaches the light-sensing element 420 located on the back light side of the display panel 410, thereby achieving specific optical performance, such as a camera function.

[0079] It should be noted that the above only describes the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments, mutual combinations and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: include: A display area, the display area including a first display area, a second display area, and a light sensing element setting area, the first display area at least partially surrounding the second display area, and the second display area surrounding the light sensing element setting area; substrate; A plurality of sub-pixels are located in the display area on one side of the base substrate; A plurality of color resists and a black matrix are located on a side of the plurality of sub-pixels away from the base substrate, the black matrix surrounds an opening, the vertical projection of the sub-pixels on the base substrate is located within at least a portion of the vertical projection of the opening on the base substrate, and the vertical projection of the color resist on the base substrate overlaps with at least a portion of the vertical projection of the opening on the base substrate; The area of ​​the vertical projection of the first thin film transistor on the base substrate is at least partially smaller than or equal to the area of ​​the vertical projection of the third thin film transistor on the base substrate; The area of ​​the black matrix per unit area in the second display area is greater than or equal to the area of ​​the black matrix per unit area in the first display area, and the area of ​​the black matrix per unit area in the first display area is greater than the area of ​​the black matrix per unit area in the photosensitive element setting area.

2. The display panel according to claim 1, wherein: The black matrix in the second display area covers the entire area outside the opening.

3. The display panel according to claim 1, wherein: The black matrix includes a first black matrix located in the first display area, a second black matrix located in the second display area, and a third black matrix located in the light sensing element setting area; The thickness of the second black matrix is ​​smaller than that of the third black matrix, and the thickness of the third black matrix is ​​smaller than that of the first black matrix.

4. The display panel according to claim 3, wherein: Along the direction from the first display area to the light sensing element setting area, the thickness of the second black matrix gradually increases.

5. The display panel according to claim 1, wherein: The plurality of sub-pixels are arranged in an array along a first direction and a second direction, wherein the first direction intersects the second direction; Along the first direction, a distance between a vertical projection of an edge of the opening on the substrate and a vertical projection of the sub-pixel exposed by the opening on the substrate is a first distance; Along the second direction, a distance between a vertical projection of the edge of the opening on the substrate and a vertical projection of the sub-pixel exposed by the opening on the substrate is a second distance; The first distance in the second display area is greater than the first distance in the light-sensing element setting area, and the first distance in the light-sensing element setting area is greater than the first distance in the first display area; and / or, the second distance in the second display area is greater than the second distance in the light-sensing element setting area, and the second distance in the light-sensing element setting area is greater than the second distance in the first display area.

6. The display panel according to claim 1, wherein: The plurality of sub-pixels include display sub-pixels and dummy sub-pixels; the first display area includes the display sub-pixels, and the second display area includes the display sub-pixels and the dummy sub-pixels; The number of the display sub-pixels per unit area in the second display area is smaller than the number of the display sub-pixels per unit area in the first display area; The plurality of openings include a first opening and a second opening, the vertical projection of the display sub-pixel on the base substrate is located within the vertical projection of the first opening on the base substrate, and the vertical projection of the dummy sub-pixel on the base substrate is located within at least a portion of the vertical projection of the second opening on the base substrate.

7. The display panel according to claim 6, wherein: An area of ​​the first opening projected vertically on the base substrate is larger than an area of ​​the second opening projected vertically on the base substrate.

8. The display panel according to claim 6, wherein: The sub-pixel includes a first electrode, an organic light-emitting functional layer and a second electrode, wherein the organic light-emitting functional layer is located between the first electrode and the second electrode; The display panel further includes a pixel defining layer, the pixel defining layer being located between the first electrode and the second electrode, the pixel defining layer including a plurality of through holes, wherein a vertical projection of the through holes on the base substrate is located within a vertical projection of the first opening on the base substrate; In the display sub-pixel, the organic light-emitting functional layer is located in the through hole and contacts the first electrode; In the dummy sub-pixel, the pixel defining layer is located between the first electrode and the organic light-emitting functional layer.

9. The display panel according to claim 8, wherein: The display panel further includes a plurality of thin film transistors, wherein the thin film transistors are electrically connected to the first electrode; The multiple sub-pixels are arranged in an array along a first direction and a second direction, the first direction intersects the second direction, and the number of the thin film transistors arranged in a row along the first direction in the first display area is equal to the number of the thin film transistors arranged in a row along the first direction in the second display area.

10. The display panel according to claim 1, wherein The plurality of openings include a first opening and a second opening. The sub-pixels are located within the vertical projection of the first opening on the substrate, and at least part of the second openings are located in the area where the gaps between the sub-pixels are located.

11. The display panel according to claim 1, wherein Also included are a plurality of thin film transistors; The plurality of thin film transistors include a first thin film transistor, which is located in the second display area. The first thin film transistor is located between the black matrix and the base substrate and is electrically connected to the sub-pixel in the photosensitive element setting area.

12. The display panel according to claim 11, wherein: The plurality of thin film transistors further include a second thin film transistor and a third thin film transistor; The second thin film transistor is located in the second display area and is electrically connected to the sub-pixel in the second display area; The third thin film transistor is located in the first display area, between the sub-pixel in the first display area and the base substrate, and is electrically connected to the sub-pixel in the first display area; The vertical projection areas of the first thin film transistor and the second thin film transistor on the base substrate are both smaller than the vertical projection area of ​​the third thin film transistor on the base substrate.

13. The display panel according to claim 11, wherein: The plurality of thin film transistors further include a second thin film transistor, the second thin film transistor being located in the second display area and electrically connected to the sub-pixels in the second display area, and at least part of the second thin film transistor being located in a region where gaps between the sub-pixels are located; The multiple openings include a first opening and a second opening, the sub-pixels are located within the vertical projection of the first opening on the substrate, and the second thin film transistors located in the area where the gaps between the sub-pixels are located are located within the vertical projection of the substrate on the substrate, at least part of the second opening is located within the vertical projection of the substrate.

14. The display panel according to claim 11, wherein: The edge of the sub-pixel is projected on the base substrate as a first figure, and in the light sensing element setting area, the edge of the opening is vertically projected on the base substrate as a second figure, and the shape of the second figure is consistent with the shape of the first figure.

15. The display panel according to claim 1, wherein: Also included are a plurality of thin film transistors; The plurality of thin film transistors include a first thin film transistor, the first thin film transistor being located in the light sensing element setting area, being located between the sub-pixel in the light sensing element setting area and the base substrate, and being electrically connected to the sub-pixel in the light sensing element setting area; A vertical projection of the first thin film transistor on the base substrate is located within a joint projection of the sub-pixel and the black matrix on the base substrate.

16. The display panel according to claim 15, wherein: In the light sensing element setting area, the outer edge of the black matrix includes a curve.

17. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 16.

Images