Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate which comprises a display area and a first binding area arranged on one side of the display area; the plurality of photosensitive detection units are located in the display area; the first detection circuit is arranged between the first binding area and the display area; the first detection signal line is electrically connected with the photosensitive detection unit and the first detection circuit; wherein at least part of the first binding area and the first detection circuit are connected to the display area through the bending area. The first binding area is bent to the non-display side of the display panel through the bending area, so that the first detection circuit located in the first binding area is bent to the non-display side, and the screen-to-body ratio of the display panel is increased.

Description

Technical Field

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

[0002] Organic Light-Emitting Diode (OLED) is an active light-emitting device. Compared with the traditional liquid crystal display (LCD) display method, OLED display technology does not require a backlight and has the characteristic of self-luminescence. OLED uses a thinner organic material film layer and a glass substrate. When an electric current passes through, the organic material will emit light. Therefore, OLED display panels can significantly save electricity, can be made lighter and thinner, can withstand a wider range of temperature changes than LCD display panels, and have a larger viewing angle. OLED display panels are expected to become the next generation of flat-panel display technology after LCD, and are one of the most popular technologies in flat-panel display technology.

[0003] However, the performance of current OLED display products needs to be improved. Summary of the invention

[0004] The embodiments of the present application provide a display panel, a display device and a method for manufacturing a display panel, aiming to improve the performance of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, comprising: a substrate, comprising a display area and a first binding area arranged on one side of the display area; a photosensitive detection unit, wherein a plurality of photosensitive detection units are located in the display area; a first detection circuit, arranged between the display area and the first binding area; a first detection signal line, wherein the first detection signal line is connected to the photosensitive detection unit and is electrically connected to the first detection circuit; wherein the first binding area and the first detection circuit are connected to the display area via a bending area.

[0006] According to an embodiment of the present application, the first detection signal line includes a fingerprint signal reading control line and a fingerprint reset control line arranged side by side.

[0007] According to an embodiment of the present application, the display area includes a fingerprint recognition area, the photosensitive detection unit is located in the fingerprint recognition area, and the fingerprint signal reading control line and the fingerprint reset control line are electrically connected to the photosensitive detection unit and the first detection circuit.

[0008] According to an embodiment of the present application, the first detection circuit is a fingerprint detection drive circuit.

[0009] According to an embodiment of the present application, the first binding area is located at one side of the display area along the first direction, and the fingerprint signal reading control line and the fingerprint reset control line are extended along the first direction.

[0010] According to an embodiment of the present application, a first virtual wiring is arranged on a side of the fingerprint signal reading control line and / or the fingerprint reset control line away from the first binding area along the first direction.

[0011] According to an embodiment of the present application, the first virtual routing line extends along the first direction, and the first virtual routing line is made of the same material and is disposed on the same layer as the fingerprint signal reading control line and / or the fingerprint reset control line.

[0012] According to an embodiment of the present application, in the first direction, the first virtual wiring is spaced and insulated from the fingerprint signal reading control line and / or the fingerprint reset control line.

[0013] According to an embodiment of the present application, the first virtual wiring is located outside the fingerprint recognition area.

[0014] According to an embodiment of the present application, a first spacing area is provided between the first virtual wiring and the fingerprint signal reading control line and the fingerprint reset control line, and the first spacing area is located outside the fingerprint identification area.

[0015] According to an embodiment of the present application, the display panel also includes a plurality of first power signal lines, which are arranged in the display area and extend along the second direction, at least part of the first virtual lines are electrically connected to at least part of the first power signal lines, and the first direction and the second direction are arranged to intersect.

[0016] According to an embodiment of the present application, the first power signal line is a fingerprint power voltage signal line.

[0017] According to an embodiment of the present application, the display panel also includes a first border area located on at least one side of the display area along the second direction and a second border area located on the side of the display area along the first direction away from the first binding area. The display panel also includes a border routing, the border routing includes a first segment located in the first border area and a second segment located in the second border area, the first segment and the second segment are electrically connected, each first power signal line is electrically connected to the first segment, and at least part of the first virtual routing is electrically connected to at least part of the first power signal line and the second segment.

[0018] According to an embodiment of the present application, the display panel further includes a fingerprint voltage line, the fingerprint voltage line includes a first section extending along the second direction, and the first section is connected to the photosensitive detection unit.

[0019] According to an embodiment of the present application, the display panel further includes a driver integrated circuit, which is disposed in the first binding area, and the fingerprint voltage line further includes a second section extending along the first direction, and the second section is electrically connected to the first section and the driver integrated circuit.

[0020] According to an embodiment of the present application, the driving integrated circuit is located on a side of the first detection circuit away from the display area.

[0021] According to an embodiment of the present application, the fingerprint voltage line includes a fingerprint voltage reading line and a fingerprint voltage reset line.

[0022] According to an embodiment of the present application, the first section and the second section are arranged in different layers, and the first section is connected to the second section through a via.

[0023] According to an embodiment of the present application, a second virtual wiring is further provided on a side of the second section away from the driver integrated circuit.

[0024] According to an embodiment of the present application, at least a portion of the second virtual routing line is electrically connected to at least a portion of the first power signal line.

[0025] According to an embodiment of the present application, at least a portion of the second virtual routing line is electrically connected to at least a portion of the first power signal line and the second segment.

[0026] According to an embodiment of the present application, the display area also includes a main display area located outside the fingerprint recognition area, the fingerprint recognition area includes a plurality of fingerprint signal reading control lines and fingerprint reset control lines arranged side by side along the second direction, and the display panel also includes a plurality of third virtual routing lines, and the plurality of third virtual routing lines are arranged side by side in the main display area along the second direction to balance the routing density of the fingerprint recognition area and the main display area.

[0027] According to an embodiment of the present application, the third virtual wiring is electrically connected to at least a portion of the first power signal line.

[0028] According to an embodiment of the present application, at least a portion of the third virtual routing line is electrically connected to at least a portion of the first power signal line and the second segment.

[0029] According to an embodiment of the present application, the substrate also includes a second binding area, the first binding area and the second binding area are arranged on both sides of the display area along the first direction, the number of the first detection circuits is more than two, wherein a part of the first detection circuit is arranged between the first binding area and the display area, and another part of the first detection circuit is arranged between the second binding area and the display area; the first detection circuit located between the second binding area and the display area and the second binding area are connected to the display area through a bending area.

[0030] According to an embodiment of the present application, a display integrated circuit is disposed in the second binding area.

[0031] According to an embodiment of the present application, the display panel further includes a scan line, and the scan line is extended along the second direction.

[0032] According to an embodiment of the present application, the display panel further includes a second power signal line, and the second power signal line is extended along the first direction.

[0033] According to an embodiment of the present application, the second power signal line includes a display power voltage signal line.

[0034] According to an embodiment of the present application, the display panel further includes a display data line, which extends along a first direction and is electrically connected to the display integrated circuit.

[0035] An embodiment of the second aspect of the present application further provides a display device, comprising the display panel of any one of the embodiments of the first aspect above, the display device having a display side and a non-display side, and the first binding area and the first detection circuit are bent to the non-display side through the bending area.

[0036] In an embodiment of the present application, the first detection circuit is arranged between the first binding area and the display area, the photosensitive detection unit is located in the display area, and the first detection signal line is electrically connected to the photosensitive detection unit and the first detection circuit. At least part of the first binding area and the first detection circuit are connected to the display area through the bending area, and the first binding area and the first detection circuit are bent to the non-display side of the display panel through the bending area, thereby bending the first detection circuit to the non-display side, thereby reducing the occupation of the display side area by the first detection circuit, which is beneficial to increase the screen-to-body ratio of the display panel and improve the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0038] Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0039] Figure 2 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0040] Figure 3 is a schematic diagram of a partial structure of a display panel provided in an embodiment of the present application;

[0041] Figure 4 is a partial structural schematic diagram of another display panel provided in an embodiment of the present application;

[0042] Figure 5 is a partial structural schematic diagram of another display panel provided in an embodiment of the present application;

[0043] Figure 6 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present application.

[0044] Description of reference numerals: 10, display side; 20, non-display side; 100, substrate; 101, first frame area; 102, second frame area; 110, display area; 111, fingerprint recognition area; 112, main display area; 120, first binding area; 130, second binding area; 140, bending area; 200, photosensitive detection unit; 300, first detection circuit; 310, first detection signal line; 311, fingerprint signal reading control line; 312, fingerprint reset control line; 320, first power signal line; 321, frame routing; 322, fingerprint reset control line; 323, fingerprint reset control line; 324, fingerprint reset control line; 325, fingerprint reset control line; 326, fingerprint reset control line; 327, fingerprint reset control line; 328, fingerprint reset control line; 329, fingerprint reset control line; 330, fingerprint reset control line; 331, fingerprint reset control line; 332, fingerprint reset control line; 333, fingerprint reset control line; 334, fingerprint reset control line; 335, fingerprint reset control line; 336, fingerprint reset control line; 337, fingerprint reset control line; 338, fingerprint reset control line; 339, fingerprint reset control line; 340, fingerprint reset control line; 341, fingerprint reset control line; 342, fingerprint reset control line; 343, fingerprint reset control line; 344, fingerprint reset control line; 345, fingerprint reset control line; 346, fingerprint reset control line; 347, fingerprint reset control line; 348, fingerprint reset control line; 349, fingerprint reset control line; 350, fingerprint reset control line; 351, fingerprint reset control line; 352, fingerprint reset control line; 353, fingerprint reset control line; 354, fingerprint reset control line; 355, fingerprint reset control line; 1a, first segment; 321b, second segment; 330, fingerprint voltage line; 330a: fingerprint voltage reading line; 330b: fingerprint voltage reset line; 331, first section; 332, second section; 400, first virtual routing; 410, first spacing area; 500, driver integrated circuit; 600, second virtual routing; 700, third virtual routing; 800, display integrated circuit; 910, scan line; 930, display data line; 940, display driver circuit; X, first direction; Y, second direction; Z, thickness direction. DETAILED DESCRIPTION

[0045] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0046] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] like Figure 1 As shown, a display panel provided by an embodiment of the first aspect of the present application includes: a substrate 100, a photosensitive detection unit 200, a first detection circuit 300 and a first detection signal line 310, the substrate 100 includes a display area 110 and a first binding area 120 arranged on one side of the display area 110; a plurality of photosensitive detection units 200 are located in the display area 110; the first detection circuit 300 is arranged between the display area 110 and the first binding area 120; the first detection signal line 310 is connected to the photosensitive detection unit 200 and is electrically connected to the first detection circuit 300; wherein, the first binding area 120 and the first detection circuit 300 are connected to the display area 110 via a bending area 140.

[0049] In the present embodiment, the display panel has a display side 10 and a non-display side 20 which are arranged relatively along the thickness direction Z, the display side 10 is used to realize light emission, and the non-display side 20 is located on the back of the light emission side. The first detection circuit 300 is arranged between the first binding area 120 and the display area 110, the photosensitive detection unit 200 is located in the display area 110, and the first detection signal line 310 connects the photosensitive detection unit 200 with the first detection circuit 300. The first binding area 120 and the first detection circuit 300 are connected to the display area 110 through the bending area 140, and the bending area 140 can bend the first binding area 120 and the first detection circuit 300 to the non-display side 20 of the display panel, thereby bending the first binding area 120 and the first detection circuit 300 to the non-display side 20, thereby reducing the occupation of the display side 10 area by the first detection circuit 300, which is conducive to increasing the screen-to-body ratio of the display panel and improving the performance of the display panel.

[0050] In the related art, the first detection circuit is designed in the non-display area around the display area, so that the area of ​​the non-display area is wider to accommodate the first detection circuit, which is not conducive to the design of a narrow frame of the display panel. In the present application, the first binding area 120 and the first detection circuit 300 are bent to the non-display side 20 on the back of the display area 110, so as to avoid the first detection circuit 300 occupying the area around the display area 110, which is conducive to the design of a narrow frame of the display panel.

[0051] Optionally, the first binding area 120 is used to set connection terminals, and the connection terminals are used to connect the display integrated circuit 800 and / or the driver integrated circuit 500 .

[0052] Optionally, the substrate 100 may be made of glass, polyimide (PI), etc. When the substrate 100 is made of polyimide material, it is a flexible substrate, so that the display panel can be used to manufacture a flexible display panel.

[0053] Optionally, the display panel includes a driving circuit for driving the light-emitting device to emit light, and the driving circuit includes a transistor and a storage capacitor. The transistor includes a semiconductor portion, a gate, a source and a drain. Among them, the driving circuit can be any one of a 2T1C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit. In this article, "2T1C circuit" refers to a circuit including 1 driving transistor, 1 switching transistor and 1 capacitor in the circuit, the driving transistor can be a P-type transistor, and the switching transistor can be an N-type transistor. Other "7T1C circuit", "7T2C circuit", "9T1C circuit" and so on are analogous.

[0054] like Figure 1 and Figure 2 As shown, in some optional embodiments, the first detection signal line 310 includes a fingerprint signal reading control line 311 and a fingerprint reset control line 312 arranged side by side.

[0055] In these optional embodiments, one end of the fingerprint signal reading control line 311 and the fingerprint reset control line 312 is connected to the photosensitive detection unit 200 located in the display area 110, and the other end of the fingerprint signal reading control line 311 and the fingerprint reset control line 312 is connected to the first detection circuit 300.

[0056] Optionally, the first detection circuit 300 is a fingerprint detection circuit, and the photosensitive detection unit 200 is used for fingerprint recognition. The fingerprint includes valleys and ridges. Different fingerprints reflect light differently, so that the light intensity received by the photosensitive detection unit 200 is also different, and thus the charge accumulated by the photosensitive detection unit 200 is different.

[0057] Optionally, the fingerprint driving circuit can be a 3T APS (Active Pixel Sensor), 4T APS or 5T APS, etc. Taking the 3T APS circuit as an example, it includes three transistors, all of which are N-type, such as IGZO (IndiumGalliumZincOxide) or N-type LTPS (Low Temperature Poly-Silicon) transistors. The fingerprint driving circuit is used to drive the photosensitive detection unit 200 for fingerprint recognition.

[0058] Optional, such as Figure 1 and Figure 2 As shown, the display area 110 includes a fingerprint identification area 111 , the photosensitive detection unit 200 is located in the fingerprint identification area 111 , and the fingerprint signal reading control line 311 and the fingerprint reset control line 312 are electrically connected to the photosensitive detection unit 200 and the first detection circuit 300 .

[0059] The display area 110 of the display panel is used for emitting light, and a fingerprint recognition area 111 is set in the display area 110 for fingerprint recognition. The photosensitive detection unit 200 is located in the fingerprint recognition area 111 to realize fingerprint recognition, and the fingerprint signal reading control line 311 and the fingerprint reset control line 312 are electrically connected to the photosensitive detection unit 200 and the first detection circuit 300.

[0060] Optionally, the first detection circuit 300 is a fingerprint detection drive circuit.

[0061] like Figure 2 As shown, in some optional embodiments, the first binding area 120 is located on one side of the display area 110 along the first direction X, and the fingerprint signal reading control line 311 and the fingerprint reset control line 312 are extended along the first direction X.

[0062] In these optional embodiments, the fingerprint signal reading control line 311 and the fingerprint reset control line 312 extend along the first direction X, the fingerprint signal reading control line 311 and the fingerprint reset control line 312 are arranged side by side along the second direction Y, and the fingerprint signal reading control line 311 and the fingerprint reset control line 312 extend from the display area 110 along the first direction X to electrically connect the fingerprint detection drive circuit located between the first binding area 120 and the display area 110.

[0063] like Figure 2 As shown, in some optional embodiments, a first virtual wiring 400 is disposed on a side of the fingerprint signal reading control line 311 or the fingerprint reset control line 312 along the first direction X away from the first binding area 120 .

[0064] In these optional embodiments, a first virtual routing line 400 is provided on the side of the fingerprint signal reading control line 311 away from the first binding area 120 along the first direction X, so that the density of metal wires in the first direction X at the location of the fingerprint signal reading control line 311 can be balanced. A first virtual routing line 400 is provided on the side of the fingerprint reset control line 312 away from the first binding area 120 along the first direction X, so that the density of metal wires in the first direction X at the location of the fingerprint reset control line 312 can be balanced. The fingerprint signal reading control line 311 and the fingerprint reset control line 312 extend toward the first binding area 120, while the side of the fingerprint signal reading control line 311 and the fingerprint reset control line 312 away from the first binding area 120 is a blank area, thereby causing an uneven density of metal wiring in the display panel. The first virtual routing line 400 extending along the first direction X can ensure the balance of the density of metal wiring in the display panel, which is beneficial to the uniformity of the screen off of the display panel.

[0065] like Figure 2 As shown, in some other optional embodiments, the fingerprint signal reading control line 311 and the fingerprint reset control line 312 are both provided with a first virtual wiring 400 on one side away from the first binding area 120 along the first direction X.

[0066] Optionally, the first virtual wiring 400 extends along the first direction X, and the first virtual wiring 400 is made of the same material and disposed in the same layer as the fingerprint signal reading control line 311 or the fingerprint reset control line 312 .

[0067] The first virtual wiring 400 is made of the same material as the fingerprint signal reading control line 311 or the fingerprint reset control line 312 and extends in the same direction. The first virtual wiring 400 can be synchronously manufactured with the fingerprint signal reading control line 311 or the fingerprint reset control line 312 to simplify the process.

[0068] Optionally, the first virtual line 400 extends along the first direction X, and the first virtual line 400 is made of the same material and arranged in the same layer as the fingerprint signal reading control line 311 and the fingerprint reset control line 312. The first virtual line 400 can be formed synchronously with the fingerprint signal reading control line 311 and the fingerprint reset control line 312, thereby simplifying the process.

[0069] Optional, such as Figure 2 As shown, in the first direction X, the first virtual wiring 400 is spaced and insulated from the fingerprint signal reading control line 311 and / or the fingerprint reset control line 312; after the first virtual wiring 400, the fingerprint signal reading control line 311 and the fingerprint reset control line 312 are formed, the first virtual wiring 400, the fingerprint signal reading control line 311 and the fingerprint reset control line 312 can be disconnected by etching, thereby reducing the short circuit problem.

[0070] Optional, such as Figure 2 and Figure 3 As shown, the first virtual routing line 400 is located outside the fingerprint identification area 111, thereby preventing the first virtual routing line 400 from affecting the extension length of the fingerprint signal reading control line 311 and the fingerprint reset control line 312, which is beneficial to increasing the distribution range of the fingerprint signal reading control line 311 and the fingerprint reset control line 312, thereby reducing the resistance and capacitance loads of the fingerprint signal reading control line 311 and the fingerprint reset control line 312.

[0071] like Figure 2 and Figure 3 As shown, in some optional embodiments, a first spacing area 410 is provided between the first virtual wiring 400 and the fingerprint signal reading control line 311 and the fingerprint reset control line 312 , and the first spacing area 410 is located outside the fingerprint identification area 111 .

[0072] In these optional embodiments, the first virtual routing line 400 and the fingerprint signal reading control line 311 and the fingerprint reset control line 312 are spaced and insulated, and there is a first spacing area 410 between the first virtual routing line 400 and the fingerprint signal reading control line 311 and the fingerprint reset control line 312. The first spacing area 410 between the first virtual routing line 400 and the fingerprint signal reading control line 311 and the fingerprint reset control line 312 is set outside the fingerprint identification area 111, and the distribution area of ​​the fingerprint signal reading control line 311 and the fingerprint reset control line 312 in the fingerprint identification area 111 is increased, thereby reducing the resistance and capacitance loads of the fingerprint signal reading control line 311 and the fingerprint reset control line 312.

[0073] like Figure 2 and Figure 4 As shown, in some optional embodiments, the display panel also includes a plurality of first power signal lines 320 , which are arranged in the display area 110 and extend along the second direction Y, and at least part of the first virtual routing lines 400 are electrically connected to at least part of the first power signal lines 320 .

[0074] In these optional embodiments, the first virtual routing 400 extends along the first direction X, and the first power signal line 320 extends along the second direction Y. The first virtual routing 400 can be connected to the first power signal line 320, so that the first virtual routing 400 is connected to the signal in the first power signal line 320, thereby improving the problem of parasitic capacitance generated by the first virtual routing 400.

[0075] like Figure 2 As shown, in some optional embodiments, the first power signal line 320 is a fingerprint power voltage signal line.

[0076] In these optional embodiments, since the fingerprint signal reading control line 311 and the fingerprint reset control line 312 both extend along the first direction X, the first power signal line 320 extends along the second direction Y, the first power signal line 320 is connected to the fingerprint power supply voltage signal to form a fingerprint power supply voltage signal line, and the extension direction of the fingerprint power supply voltage signal line intersects with the extension direction of the fingerprint signal reading control line 311 and the fingerprint reset control line 312.

[0077] Optional, such as Figure 4 As shown, the display panel also includes a first border area 101 located on at least one side of the display area 110 along the second direction Y and a second border area 102 located on the side of the display area 110 along the first direction X away from the first binding area 120. The display panel also includes a border routing 321. The border routing 321 includes a first segment 321a located in the first border area 101 and a second segment 321b located in the second border area 102. The first segment 321a and the second segment 321b are electrically connected. Each first power signal line 320 is electrically connected to the first segment 321a. At least a portion of the first virtual routing 400 is electrically connected to at least a portion of the first power signal line 320 and the second segment 321b.

[0078] In these optional embodiments, each first power signal line 320 is electrically connected to the first segment 321a, and the first segment 321a is electrically connected to the second segment 321b, and at least part of the first dummy wiring 400 is electrically connected to at least part of the first power signal line 320 and the second segment 321b, thereby reducing the voltage drop of the first power signal line 320. Figure 2 As shown, in some optional embodiments, the display panel further includes a fingerprint voltage line 330, the fingerprint voltage line 330 includes a first section 331 extending along the second direction Y, the first section 331 is connected to the photosensitive detection unit 200, and the first direction X and the second direction Y are arranged to intersect.

[0079] In these optional embodiments, the first detection signal line 310 extends along the first direction X, and the first section 331 of the fingerprint voltage line 330 extends along the second direction Y, so that the first section 331 intersects with the first detection signal line 310, and the first section 331 and the first detection signal line 310 are both connected to the photosensitive detection unit 200.

[0080] Optional, such as Figure 2 As shown, the display panel further includes a driver integrated circuit 500 , which is disposed in the first binding area 120 , and the fingerprint voltage line 330 further includes a second section 332 extending along the first direction X, and the second section 332 is electrically connected to the first section 331 and the driver integrated circuit 500 .

[0081] The driver integrated circuit 500 is arranged in the first binding area 120, and the fingerprint voltage line 330 needs to be connected to the driver integrated circuit 500. The driver integrated circuit 500 is arranged on one side of the first direction X of the fingerprint voltage line 330. The fingerprint voltage line 330 includes a second section 332 extending along the first direction X. The second section 332 extends from the display area 110 to the first binding area 120. The second section 332 electrically connects the first section 331 with the driver integrated circuit 500.

[0082] Optional, such as Figure 2 As shown, the first section 331 extends from the fingerprint identification area 111 to the outside of the fingerprint identification area 111, the second section 332 is arranged outside the fingerprint identification area 111, and the first section 331 is connected to the driver integrated circuit 500 by connecting the second section 332 outside the fingerprint identification area 111. When the area of ​​the fingerprint identification area 111 is small, the second section 332 is arranged outside the fingerprint identification area 111, so that the arrangement position of the second section 332 can be more flexible.

[0083] Optional, such as Figure 2 As shown, the driver integrated circuit 500 is located on the side of the first detection circuit 300 away from the display area 110. The first binding area 120 is connected to the display area 110 through the bending area 140, and the driver integrated circuit 500 is arranged on the side of the first detection circuit 300 away from the display area 110, that is, the driver integrated circuit 500 is located on the side of the first detection circuit 300 away from the bending area 140, and the first binding area 120 is bent to the non-display side 20 of the display panel through the bending area 140, so that the driver integrated circuit 500 located in the first binding area 120 is bent to the non-display side 20, thereby reducing the area occupied by the driver integrated circuit 500 on the display side 10, which is beneficial to increase the screen ratio of the display panel.

[0084] Optional, such as Figure 2 As shown, the fingerprint voltage line 330 includes a fingerprint voltage reading line 330a and a fingerprint voltage reset line 330b. The fingerprint voltage reading line 330a and the fingerprint voltage reset line 330b are extended along the second direction Y, and the fingerprint voltage reading line 330a and the fingerprint voltage reset line 330b are arranged side by side along the first direction X.

[0085] Optionally, the first segment 331 and the second segment 332 are arranged in different layers, and the first segment 331 and the second segment 332 are connected by via holes; since the number of the first segment 331 and the second segment 332 are both multiple, and the extension directions of the first segment 331 and the second segment 332 intersect, an insulating material layer is arranged between the first segment 331 and the second segment 332 along the thickness direction Z of the display panel to avoid short circuit caused by the connection between the first segment 331 and multiple second segments 332, and each first segment 331 is electrically connected to each second segment 332 by setting a via in the insulating layer.

[0086] Optional, such as Figure 3 and Figure 5 As shown, the first section 331 and the second section 332 are at least partially disposed in the fingerprint identification area 111, and the connection point between the first section 331 and the second section 332 is located in the fingerprint identification area 111. When the fingerprint identification area 111 is relatively large, the second section 332 is disposed outside the fingerprint identification area 111, and when the via connection position between the first section 331 and the second section 332 is outside the fingerprint identification area 111, space limitations will occur. However, the solution in which the connection point between the first section 331 and the second section 332 is located in the fingerprint identification area 111 can reduce the limitation of the controlled space in the design.

[0087] Optional, such as Figure 3 and Figure 5 As shown, a second virtual line 600 is further provided on the side of the second section 332 away from the driver integrated circuit 500. The side of the second section 332 away from the driver integrated circuit 500 is a blank area, which causes an uneven density of metal lines in the display panel. The second virtual line 600 extending along the first direction X is provided on the side of the second section 332 away from the driver integrated circuit 500 to ensure the balance of the metal line density in the display panel, which is beneficial to the uniformity of the screen off.

[0088] Optional, such as Figure 3 and Figure 5 As shown, a second spacing area 610 is provided between the second section 332 and the second virtual wiring 600. The second spacing area 610 can be located in the fingerprint identification area 111 or outside the fingerprint identification area 111. The second section 332 and the second virtual wiring 600 are disconnected at the second spacing area 610 to prevent short circuit. When the second spacing area 610 is located outside the fingerprint identification area 111, the second section 332 extends from the connection point of the first section 331 and the second section 332 toward the side away from the driver integrated circuit 500 to increase the distribution area of ​​the second section 332, thereby reducing the capacitance resistance voltage drop of the second section 332, and reducing the area difference of the fingerprint voltage line 330, so as to ensure that the resistance and capacitance load of the fingerprint voltage line 330 are consistent. When the second spacing area 610 is located outside the fingerprint identification area 111, it can improve the uniformity of the distribution of the first section 331 and the second section 332 in the fingerprint identification area 111, and improve the consistency of the capacitance resistance voltage drop of the fingerprint voltage line 330 in the fingerprint identification area 111.

[0089] Optional, such as Figure 2 and Figure 4As shown, at least part of the second virtual routing 600 is electrically connected to at least part of the first power signal line 320. The second virtual routing 600 extends along the first direction X, and the first power signal line 320 extends along the second direction Y. The second virtual routing 600 can be connected to the first power signal line 320, so that the second virtual routing 600 is connected to the signal in the first power signal line 320, thereby improving the problem of parasitic capacitance generated by the second virtual routing 600.

[0090] Optional, such as Figure 4 As shown, at least a portion of the second dummy wiring 600 electrically connects at least a portion of the first power signal line 320 and the second segment 321 b , thereby reducing the voltage drop of the first power signal line 320 .

[0091] like Figure 2 As shown, in some optional embodiments, the display area 110 also includes a main display area 112 located outside the fingerprint recognition area 111, the fingerprint recognition area 111 includes a plurality of fingerprint signal reading control lines 311 and fingerprint reset control lines 312 arranged side by side along the second direction Y, and the display panel also includes a plurality of third virtual routing lines 700, and the plurality of third virtual routing lines 700 are arranged side by side in the main display area 112 along the second direction Y to balance the routing density of the fingerprint recognition area 111 and the main display area 112.

[0092] In these optional embodiments, the fingerprint signal reading control line 311 and the fingerprint reset control line 312 are arranged in the fingerprint identification area 111, so that the density of the metal routing in the fingerprint identification area 111 is greater than that in the main display area 112, and a plurality of third virtual routing lines 700 are arranged in the main display area 112, the third virtual routing lines 700 extend along the first direction X, and the plurality of third virtual routing lines 700 are arranged side by side along the second direction Y, so that the routing density of the fingerprint identification area 111 and the main display area 112 is balanced.

[0093] Optional, such as Figure 2 and Figure 4 As shown, the third virtual line 700 is electrically connected to at least a portion of the first power signal line 320 , so that the third virtual line 700 is connected to the signal in the first power signal line 320 , thereby improving the problem of parasitic capacitance generated by the third virtual line 700 .

[0094] Optional, such as Figure 4 As shown, at least a portion of the third dummy wiring 700 electrically connects at least a portion of the first power signal line 320 and the second segment 321 b , thereby reducing the voltage drop of the first power signal line 320 .

[0095] like Figure 6As shown, in some optional embodiments, the substrate 100 also includes a second binding area 130, the first binding area 120 and the second binding area 130 are arranged on both sides of the display area 110 along the first direction X, and the number of the first detection circuits 300 is more than two, wherein a part of the first detection circuit 300 is arranged between the first binding area 120 and the display area 110, and another part of the first detection circuit 300 is arranged between the second binding area 130 and the display area 110; the first detection circuit 300 located between the second binding area 130 and the display area 110 and the second binding area 130 are connected to the display area 110 via the bending area 140.

[0096] In these optional embodiments, the second binding area 130 and the first binding area 120 are on both sides of the first direction X of the display area 110, a portion of the first detection circuit 300 is arranged between the first binding area 120 and the display area 110, and another portion of the first detection circuit 300 is arranged between the second binding area 130 and the display area 110, thereby having more locations for arranging the first detection circuit 300, thereby improving the problem of insufficient design space for the first detection circuit 300 on a single side.

[0097] Optional, such as Figure 6 As shown, the second binding area 130 is provided with a display integrated circuit 800, a driver integrated circuit 500 is used to drive fingerprint recognition, and the display integrated circuit 800 is used to drive the display function of the display panel. The display integrated circuit 800 and the driver integrated circuit 500 are respectively designed in two binding areas to solve the problem of insufficient design space for the driver integrated circuit 500 and the display integrated circuit 800 on a single side.

[0098] like Figure 2 As shown, in some optional embodiments, the display panel further includes a scan line 910, and the scan line 910 is extended along the second direction Y.

[0099] In these optional embodiments, the scan line 910 is extended along the second direction Y, the scan line 910 is connected to the display driving circuit 940, and the display driving circuit 940 is located on both sides of the second direction Y of the display area 110. In the related art, the first detection signal line extends along the second direction, the first detection circuit is located on both sides of the second direction of the display area, and the first detection circuit and the display driving circuit are jointly arranged on both sides of the second direction of the display area to increase the non-display size on both sides of the second direction of the display panel. In this embodiment, the scan line 910 is arranged to intersect with the first detection signal line 310, so that the display driving circuit 940 and the first detection circuit 300 are respectively located on both sides of the second direction Y of the display area 110 and at least one side of the first direction X of the display area 110, and the first detection circuit 300 is bent to the non-display side 20, which is conducive to realizing the design of a narrow frame of the display panel and improving the screen-to-body ratio.

[0100] Optionally, the display panel further includes a second power signal line, and the second power signal line is extended along the first direction X. Optionally, the second power signal line includes a display power voltage signal line. The second power signal line is used to provide a power signal to the light emitting device in the display panel.

[0101] Optional, such as Figure 6 As shown, the display panel further includes a display data line 930, which extends along the first direction X and is electrically connected to the display integrated circuit 800. The display integrated circuit 800 is disposed on one side of the display area 110 in the first direction X, and the display data line 930 extends along the first direction X to be electrically connected to the display integrated circuit 800.

[0102] The embodiment of the second aspect of the present application also provides a display device, including the display panel of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present application includes the display panel of any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel of any of the above-mentioned embodiments of the first aspect, which will not be repeated here.

[0103] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0104] Optional, such as Figure 1 As shown, the display device has a display side 10 and a non-display side 20 , and the first binding area 120 and the first detection circuit 300 are bent to the non-display side 20 through the bending area 140 .

[0105] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. 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 in that: include: A substrate, comprising a display area and a first binding area arranged on one side of the display area; A photosensitive detection unit, wherein a plurality of the photosensitive detection units are located in the display area; A first detection circuit is arranged between the display area and the first binding area; A first detection signal line, the first detection signal line is connected to the light sensing detection unit and is electrically connected to the first detection circuit; The first binding area and the first detection circuit are connected to the display area through a bending area.

2. The display panel according to claim 1, characterized in that: The first detection signal line includes a fingerprint signal reading control line and a fingerprint reset control line arranged side by side; Preferably, the display area includes a fingerprint recognition area, the light-sensing detection unit is located in the fingerprint recognition area, and the fingerprint signal reading control line and the fingerprint reset control line are electrically connected to the light-sensing detection unit and the first detection circuit; Preferably, the first detection circuit is a fingerprint detection drive circuit; Preferably, the first binding area is located at one side of the display area along a first direction, and the fingerprint signal reading control line and the fingerprint reset control line are extended along the first direction.

3. The display panel according to claim 2, characterized in that: A first virtual wiring is arranged on a side of the fingerprint signal reading control line and / or the fingerprint reset control line away from the first binding area along the first direction; Preferably, the first virtual line extends along the first direction, and the first virtual line is made of the same material and arranged in the same layer as the fingerprint signal reading control line and / or the fingerprint reset control line; Preferably, in the first direction, the first virtual wiring is spaced and insulated from the fingerprint signal reading control line and / or the fingerprint reset control line; Preferably, the first virtual wiring is located outside the fingerprint recognition area.

4. The display panel according to claim 3, characterized in that: A first spacing area is provided between the first virtual wiring and the fingerprint signal reading control line and the fingerprint reset control line, and the first spacing area is located outside the fingerprint identification area.

5. The display panel according to claim 3, characterized in that: The display panel further includes a plurality of first power signal lines, which are arranged in the display area and extend along a second direction, at least some of the first virtual lines are electrically connected to at least some of the first power signal lines, and the first direction and the second direction are arranged to intersect; Preferably, the first power signal line is a fingerprint power voltage signal line; Preferably, the display panel also includes a first border area located on at least one side of the display area along the second direction and a second border area located on a side of the display area along the first direction away from the first binding area, the display panel also includes a border routing, the border routing includes a first segment located in the first border area and a second segment located in the second border area, the first segment and the second segment are electrically connected, each of the first power signal lines is electrically connected to the first segments, and at least part of the first virtual routing is electrically connected to at least part of the first power signal line and the second segment.

6. The display panel according to claim 5, characterized in that: The display panel further includes a fingerprint voltage line, the fingerprint voltage line includes a first section extending along a second direction, and the first section is connected to the light sensing detection unit; Preferably, the display panel further includes a driving integrated circuit, the driving integrated circuit is arranged in the first binding area, the fingerprint voltage line further includes a second section extending along the first direction, the second section is electrically connected to the first section and the driving integrated circuit; Preferably, the driving integrated circuit is located on a side of the first detection circuit away from the display area; Preferably, the fingerprint voltage line includes a fingerprint voltage reading line and a fingerprint voltage reset line; Preferably, the first section and the second section are arranged in different layers, and the first section is connected to the second section via a hole; Preferably, a second virtual wiring is further provided on a side of the second section away from the driver integrated circuit; Preferably, at least part of the second virtual wiring is electrically connected to at least part of the first power signal line; Preferably, at least part of the second virtual routing line electrically connects at least part of the first power signal line and the second segment.

7. The display panel according to claim 6, characterized in that: The display area further includes a main display area outside the fingerprint recognition area, the fingerprint recognition area includes a plurality of fingerprint signal reading control lines and fingerprint reset control lines arranged side by side along the second direction, and the display panel further includes a plurality of third virtual routing lines, the plurality of third virtual routing lines are arranged side by side in the main display area along the second direction, so that the routing density of the fingerprint recognition area and the main display area is balanced; Preferably, the third virtual wiring is electrically connected to at least part of the first power signal line; Preferably, at least part of the third virtual routing line electrically connects at least part of the first power signal line and the second segment.

8. The display panel according to claim 1, characterized in that: The substrate further includes a second binding area, the first binding area and the second binding area are arranged on both sides of the display area along a first direction, the number of the first detection circuits is more than two, a part of the first detection circuits is arranged between the first binding area and the display area, and another part of the first detection circuits is arranged between the second binding area and the display area; The first detection circuit located between the second binding area and the display area and the second binding area are connected to the display area through a bending area; Preferably, the second binding area is provided with a display integrated circuit.

9. The display panel according to claim 8, characterized in that: The display panel further includes a scan line, and the scan line is extended along the second direction; Preferably, the display panel further comprises a second power signal line, and the second power signal line is extended along the first direction; Preferably, the second power signal line includes a display power voltage signal line; Preferably, the display panel further includes display data lines, wherein the display data lines extend along the first direction and are electrically connected to the display integrated circuit.

10. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 9, wherein the display device has a display side and a non-display side, and the first binding area and the first detection circuit are bent to the non-display side through a bending area.

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