Display panel and display device
By setting up an electrostatic protection unit and a scanning circuit in the display area of the display panel, the impact of static electricity on the display product is solved, and high anti-static performance and frameless design are achieved.
Patent Information
- Application Number
- CN202510217339.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-05-30
AI Technical Summary
Existing display products are susceptible to static electricity when facing static electricity, resulting in poor display effects and difficult to achieve borderless or extremely narrow frame design.
A scanning circuit and an electrostatic protection unit are provided in the display area of the display panel, and the first signal line is electrically connected to the electrostatic protection unit to avoid the influence of static electricity on the scanning circuit.
By introducing an electrostatic protection unit, the static electricity received by the display panel is effectively exported, avoiding the impact on normal display, improving the anti-static performance of the display product, and achieving a bezel-free or extremely narrow frame design.
Smart Images

Figure CN120076533A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of display technologies, and particularly to a display panel and a display device. Background Art
[0002] With the continuous development of science and technology, more and more display products, such as mobile phones, tablet computers, laptop computers, and smart wearable devices, etc., are widely used in people's daily life and work, bringing great convenience to people's daily life and work, and becoming an indispensable important tool for people today.
[0003] The effect of static electricity in the environment will have an adverse impact on the display effect of display products. Therefore, how to improve the anti-static ability of display products is one of the technical problems that need to be solved urgently at present. Summary of the Invention
[0004] In order to solve the above technical problems, the present disclosure provides a display panel and a display device, aiming to improve the anti-static performance of the product while realizing a borderless or extremely narrow border design of the product.
[0005] In a first aspect, the present disclosure provides a display panel, including a scanning circuit and a first signal line connected to the scanning circuit and providing signals to the scanning circuit. Among them, both the scanning circuit and the first signal line are located in the display area. The scanning circuit includes a plurality of cascaded shift registers arranged along a first direction; the display panel further includes an electrostatic protection unit disposed in the display area, and the electrostatic protection unit is electrically connected to the first signal line.
[0006] In a second aspect, based on the same inventive concept, the present disclosure provides a display device, including the display panel provided in the first aspect of the present disclosure.
[0007] The technical solutions provided in the embodiments of the present disclosure have the following advantages compared with the prior art:
[0008] In the display panel provided by the present disclosure, the scanning circuit is arranged in the display area, and the signal is provided to the shift register through the first signal line located in the display area. At the same time, the electrostatic protection unit is also arranged in the display area, and the scanning circuit and the electrostatic protection unit will no longer occupy the non-display area space of the display panel. In this way, the non-display area can be set in the display panel, or only a non-display area with a smaller width can be set, which is conducive to realizing a borderless or extremely narrow border design of the display panel, which is conducive to improving the screen-to-body ratio of the display product, and further conducive to improving the visual effect. In addition, the present disclosure introduces an electrostatic protection unit in the display area, and electrically connects the first signal line to the electrostatic protection unit. When the display panel is subjected to static electricity, the static electricity acting on the first signal line can be guided out through the electrostatic protection unit, so as to avoid affecting the normal operation of the scanning circuit, thereby avoiding affecting the normal display of the display panel, and thus helping to improve the overall anti-static performance of the display product. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0011] Figure 1 Shown is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present disclosure;
[0012] Figure 2 Shown is a schematic diagram of a film layer of a display panel provided by an embodiment of the present disclosure;
[0013] Figure 3 FIG. 1 is another schematic diagram of a planar structure of a display panel provided by an embodiment of the present disclosure;
[0014] Figure 4 It is a connection diagram of the scanning circuit, the first signal line, the light emitting element and the pixel driving circuit in the embodiment of the present disclosure;
[0015] Figure 5 FIG. 1 is a schematic diagram of a scanning circuit provided by an embodiment of the present disclosure;
[0016] Figure 6 FIG. 2 is another connection diagram of the scanning circuit, the first signal line, the light emitting element and the pixel driving circuit in the embodiment of the present disclosure;
[0017] Figure 7 Shown is another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0018] Figure 8 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0019] Figure 9 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0020] Figure 10 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0021] Figure 11 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0022] Figure 12 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0023] Figure 13 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0024] Figure 14 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0025] Figure 15 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0026] Figure 16 Shown is a schematic circuit diagram of an electrostatic protection unit provided by the embodiment of the present disclosure;
[0027] Figure 17 Shown is another schematic circuit diagram of an electrostatic protection unit provided by the embodiment of the present disclosure;
[0028] Figure 18 Shown is yet another schematic circuit diagram of an electrostatic protection unit provided by the embodiment of the present disclosure;
[0029] Figure 19 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0030] Figure 20 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0031] Figure 21 Shown is yet another schematic plan view of the display panel provided by the embodiment of the present disclosure;
[0032] Figure 22 Shown is another schematic plan view of a display panel provided by an embodiment of the present disclosure;
[0033] Figure 23 Shown is another schematic plan view of a display panel provided by an embodiment of the present disclosure;
[0034] Figure 24 Shown is another schematic plan view of a display panel provided by an embodiment of the present disclosure;
[0035] Figure 25 Shown is a schematic structural view of a display device provided by an embodiment of the present disclosure;
[0036] Figure 26 Shown is another schematic structural view of a display device provided by an embodiment of the present disclosure. Detailed implementation manners
[0037] In order to be able to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other.
[0038] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.
[0039] Figure 1 Shown is a schematic plan view of a display panel provided by an embodiment of the present disclosure. Please refer to Figure 1 , the present disclosure provides a display panel 100, including a scanning circuit 10 and a first signal line 20 connected to the scanning circuit 10 and providing signals to the scanning circuit 10. Among them, both the scanning circuit 10 and the first signal line 20 are located in the display area AA. The scanning circuit 10 includes a plurality of cascaded shift registers 11 arranged along a first direction D1; the display panel 100 further includes an electrostatic protection unit 30 disposed in the display area AA, and the electrostatic protection unit 30 is electrically connected to the first signal line 20.
[0040] Figure 1Only the display panel 100 with a rectangular structure is taken as an example for illustration, and the actual shape of the display panel 100 is not limited. In some other embodiments of the present disclosure, the display panel 100 may also be embodied as other feasible shapes such as a circular shape or a rounded rectangle. Optionally, the display panel 100 provided in this embodiment may be a display panel using inorganic light-emitting diode display technology, such as a Micro LED display panel, or a Mini LED display panel, etc. This type of display panel has advantages such as high brightness, low power consumption, and easy splicing, and is widely used in display products. At this time, the light-emitting elements in the display panel are Micro LED or Mini LED. The connection relationship of the light-emitting elements in the display panel may be appropriately referred to Figure 2 , Figure 2 Shown in Figure 2 is a schematic diagram of a film layer of the display panel provided by an embodiment of the present disclosure. The electrodes of the light-emitting element LD can be bonded to the anode pad P01 and the cathode pad P02, so as to be electrically connected to the pixel driving circuit 40 in the display panel 100. It should be noted that Figure 2 Only a film layer structure of the display panel 100 is schematically shown, and the actual number and size of the film layers are not limited. In some other embodiments of the present disclosure, the display panel 100 may also be embodied as an organic light-emitting display panel, and the corresponding light-emitting element LD is an organic light-emitting element (such as OLED), and the present disclosure does not specifically limit this. It should be noted that, in order to clearly show the relative positional relationship of the scanning circuit 10, the first signal line 20, and the electrostatic protection unit 30, Figure 1 other structures of the display panel 100 such as the light-emitting element LD are not shown in Figure 1 , and only the pixel driving circuit 40 is schematically shown in a rectangular structure, and the number and arrangement manner of the pixel driving circuits 40 are not limited. In addition, Figure 1 The position of the scanning circuit 10 in the display area AA in Figure 1 is only schematic, and an example is given in which a group of scanning circuits 10 are introduced in the display panel 100 and the scanning circuit 10 is arranged in the edge area of the display area AA, but the present disclosure is not limited thereto. In some other embodiments of the present disclosure, the scanning circuit 10 may also be arranged at other positions in the display area AA. For example, please refer to Figure 3 , Figure 3 Shown in Figure 3 is another schematic diagram of the planar structure of the display panel provided by an embodiment of the present disclosure. In this embodiment, an example is given in which two groups of scanning circuits 10 are introduced in the display panel 100, and the two groups of scanning circuits 10 are respectively arranged in the left and right half-screen areas of the display panel 100. The method of driving the pixel driving circuit 40 by the two groups of scanning circuits 10 is beneficial to improving the transmission efficiency and transmission reliability of the scanning signal.
[0041] Figure 4The figure shows a schematic connection diagram of a scanning circuit, a first signal line, a light-emitting element, and a pixel driving circuit in an embodiment of the present disclosure. Among them, the pixel driving circuit 40 is electrically connected to the light-emitting element LD and is used to drive the light-emitting element LD to emit light. Figure 4 The scanning line 50 is also shown. Optionally, the scanning circuit 10 includes a plurality of cascaded shift registers 11 arranged along the first direction D1. The output end of the shift register 11 is connected to the scanning line 50, and the scanning line 50 is further electrically connected to the pixel driving circuit 40. The shift register 11 provides a control signal to the pixel driving circuit 40 through the scanning line 50. The control signal includes, for example, a reset control signal, a data writing control signal, a light-emitting control signal, and so on. The control signal generated by the scanning circuit 10 is transmitted to the pixel driving circuit 40 through the scanning line 50 to control the operation of the pixel driving circuit 40. For the specific structure of the pixel driving circuit 40, please refer to the related art, and the present disclosure does not specifically limit it. Figure 5 The figure shows a schematic diagram of a scanning circuit provided by an embodiment of the present disclosure. Please refer to Figure 5 , a plurality of shift registers 11 are cascaded. The input end IN of the first-stage shift register 11 is connected to the start trigger signal line STV, and the output end of other-stage shift registers 11 is connected to the output end OUT of the previous-stage shift register. Each stage of the shift register 11 is respectively connected to the first clock signal line XCK, the second clock signal line CK, the first power supply voltage signal line Vgh, and the second power supply voltage signal line Vgl. The first signal line 20 mentioned in the embodiment of the present disclosure includes at least one of the first clock signal line XCK, the second clock signal line CK, the start trigger signal line STV, the first power supply voltage signal line Vgh, and the second power supply voltage signal line Vgl. Among them, the first clock signal line XCK and the second clock signal line CK are used to provide a clock signal to the shift register 11, the start trigger signal line STV is used to provide a start trigger signal to the shift register 11, and the first power supply voltage signal line Vgh and the second power supply voltage signal line Vgl are used to provide a power supply voltage signal to the shift register. In some other embodiments of the present disclosure, the first signal line 20 may also include other types of signal lines, such as a control signal line used to provide a control signal to the shift register to control whether the shift register 11 outputs an effective level in the scanning signal. The present disclosure does not specifically limit this, and for the specific structure of the shift register 11, please refer to the related art.
[0042] It should also be noted that Figure 1 , Figure 3 , Figure 4 and Figure 5The shift register 11, the first signal line 20 and the electrostatic protection unit 30 are only for illustration, and the number and position of the shift register 11, the first signal line 20 and the electrostatic protection unit 30 actually included in the display panel 100 are not specifically limited. The specific structure of the electrostatic protection unit 30 will be described in subsequent embodiments. Figure 1 , Figure 3 and Figure 4 The shift register 11 is only taken as an example to be located in the area between the columns of the pixel driving circuit 40, and the present disclosure is not limited to this. In some other embodiments of the present disclosure, the shift register 11 circuit can also be set between adjacent rows of the pixel driving circuit 40, which will be explained in subsequent embodiments.
[0043] Please combine Figures 1 to 5 In the display panel 100 provided by the present disclosure, the scanning circuit 10 is set in the display area AA, and a signal is provided to the shift register 11 circuit through the first signal line 20 located in the display area AA. At the same time, the electrostatic protection unit 30 is also set in the display area AA. The scanning circuit 10 and the electrostatic protection unit 30 will no longer occupy the non-display area space of the display panel 100. In this way, the non-display area may not be set in the display panel 100, or only a non-display area with a smaller width may be set, which is conducive to realizing a borderless or extremely narrow border design of the display panel 100, which is conducive to improving the screen-to-body ratio of the display product, and further conducive to improving the visual effect. For display products with no borders or extremely narrow borders, the devices inside the display panel 100 are close to the edge of the display panel 100. When static electricity acts on the first signal line 20 connected to the scanning circuit 10, the static electricity will be able to be transmitted to the scanning circuit 10 through the first signal line 20, affecting the normal operation of the scanning circuit 10, and may even damage the related circuit structure. For this purpose, please refer to Figure 1 , Figure 3 and Figure 4 The present disclosure introduces an electrostatic protection unit 30 in the display area AA, and electrically connects the first signal line 20 to the electrostatic protection unit 30. When the display panel 100 is subjected to static electricity, the static electricity acting on the first signal line 20 can be discharged through the electrostatic protection unit 30, thereby avoiding affecting the normal operation of the scanning circuit 10, thereby avoiding affecting the normal display of the display panel 100, and thus helping to improve the overall anti-static ability of the display panel 100.
[0044] Please refer to Figure 1 and Figure 3 In an optional implementation of the present disclosure, the first signal line 20 extends along the first direction D1.
[0045] Specifically, the first signal line 20 is a line for providing a signal to the shift register 11. The shift register 11 in the scanning circuit 10 is arranged along the first direction D1, and the first signal line 20 also extends along the first direction D1. It should be noted that the first signal line 20 extending along the first direction D1 means that the main wiring direction of the first signal line 20 extends substantially along the first direction D1, and is not limited to that all details of the first signal line 20 extend along the first direction D1.
[0046] It should be noted that Figure 1 and Figure 3 The number of the first signal lines 20 does not represent the actual number of the first signal lines 20 , and the number of the electrostatic protection units 30 connected to one of the first signal lines 20 does not represent the actual number of the electrostatic protection units 30 . This disclosure is only for illustration and is not limited thereto.
[0047] Please continue to refer to Figure 1 and Figure 3 In an optional embodiment of the present disclosure, at least part of the electrostatic protection unit 30 is located on at least one side of the shift register 11 along the second direction D2, and the second direction D2 intersects with the first direction D1 and is parallel to the light emitting surface of the display panel 100.
[0048] The present disclosure introduces an electrostatic protection unit 30 in the display area AA, and electrically connects the first signal line 20 to the electrostatic protection unit 30. When the display panel 100 is subjected to static electricity, the static electricity acting on the first signal line 20 can be discharged through the electrostatic protection unit 30, thereby avoiding affecting the normal operation of the scanning circuit 10, thereby avoiding affecting the normal display of the display panel 100. This embodiment provides a setting method of the electrostatic protection unit 30, and the electrostatic protection unit 30 is located on at least one side of the shift register 11 along the second direction D2. Figure 1 and Figure 3 From the perspective shown, the electrostatic protection unit 30 and the shift register 11 are arranged along the second direction D2 (laterally), and the electrostatic protection unit 30 is located on the left or right side of the shift register 11. Such an arrangement is conducive to reducing the space occupied by the electrostatic protection unit 30 and the shift register 11 along the first direction D1. Optionally, when the shift register 11 is arranged close to the edge of the display panel, the electrostatic protection unit 30 is arranged on the side of the shift register facing the edge of the display panel along the second direction D2, which is more conducive to reducing or avoiding the influence of static electricity conducted from the edge of the display panel on the display panel.
[0049] Figure 6 FIG. 1 is another connection diagram of the scanning circuit, the first signal line, the light emitting element and the pixel driving circuit in the embodiment of the present disclosure. Figure 6, in an alternative embodiment of the present disclosure, at least part of the electrostatic protection unit 30 is located on at least one side of the shift register 11 along the first direction D1.
[0050] It should be noted that for the sake of clear illustration in the accompanying drawings of the present disclosure, the connection lines between the shift registers 11 are not shown in some of the drawings. However, in fact, the shift registers 11 are cascaded.
[0051] Another way of arranging the electrostatic protection unit 30 provided by the embodiments of the present disclosure is that along the first direction D1, the electrostatic protection unit 30 is located on at least one side of the shift register 11. As Figure 6 shown in the perspective view, the electrostatic protection unit 30 and the shift register 11 are arranged along the first direction D1 (longitudinally), and the electrostatic protection unit 30 is located on the upper and lower sides of the shift register 11. With such an arrangement, it is beneficial to reduce the space occupied by the electrostatic protection unit 30 and the shift register 11 along the second direction D2. When the shift register 11 and the electrostatic protection unit 30 are located near the edge of the display panel, it is beneficial to compress the frame width of the display panel, which is more conducive to achieving an extremely narrow frame or borderless design of the display panel. At the same time, the electrostatic protection unit 30 is connected to the first signal line 20. When the display panel 100 is affected by static electricity, the electrostatic protection unit 30 can conduct the static electricity acting on the first signal line 20, avoiding affecting the normal operation of the scanning circuit 10, and thus is beneficial to improving the anti-static ability of the display panel 100.
[0052] It should be noted that Figure 1 and Figure 3 in the illustrated embodiments, the electrostatic protection unit 30 is located on at least one side of the shift register 11 along the second direction D2. Figure 6 in the illustrated embodiments, the electrostatic protection unit 30 is located on at least one side of the shift register 11 along the first direction D1. The present disclosure is not limited thereto. In some other embodiments of the present disclosure, part of the electrostatic protection unit 30 can be arranged on at least one side of the shift register 11 along the first direction D1, and part of the electrostatic protection unit 30 can be arranged on at least one side of the shift register 11 along the second direction D2. The relevant embodiments will be introduced below. In actual implementation, it can be designed according to actual situations.
[0053] Figure 7 Shown is another schematic plan view of the display panel provided by the embodiments of the present disclosure. Please refer to Figure 7, in an alternative embodiment of the present disclosure, the cascaded shift register 11 includes a first shift register 111 and a second shift register 112. Along the first direction D1, the first shift register 111 is located between the electrostatic protection unit 30 and the second shift register 112, and the first shift register 111 is adjacent to the electrostatic protection unit 30. Along the first direction D1, the width r1 of the first shift register 111 is smaller than the width r2 of the second shift register 112.
[0054] In this embodiment, the electrostatic protection unit 30 is located on at least one side of the shift register 11 along the first direction D1, and the electrostatic protection unit 30 and the shift register 11 are arranged along the first direction D1. Among them, the shift register 11 includes a first shift register 111 and a second shift register 112, and the first shift register 111 is located between the second shift register 112 and the electrostatic protection unit 30. It should be noted that other first shift registers 111 may or may not be included between the first shift register 111 and the second shift register 112. The second shift register 112 in this embodiment can be regarded as a shift register that is not adjacent to the electrostatic protection unit along the first direction D1. That is to say, no electrostatic protection unit adjacent to the second shift register 112 is provided above and below the second shift register 112 along the first direction D1. The first shift register 111 can be regarded as a shift register adjacent to the electrostatic protection unit 30 along the first direction D1. Specifically, the electrostatic protection unit 30 is located above or below the first shift register 111. At this time, by reducing the width of the first shift register 111 along the first direction D1, a setting space can be reserved for the electrostatic protection unit 30. Therefore, in this embodiment, it is set that the width r1 of the first shift register 111 along the first direction D1 is smaller than the width r2 of the second shift register 112 along the first direction D1, so as to reserve a setting space for the electrostatic protection unit 30 adjacent to the first shift register 111, meet the setting space requirements of the electrostatic protection unit 30, and at the same time be beneficial to the overall space occupied by the shift register 11 and the electrostatic protection unit 30 along the second direction D2, so as to realize the ultra-narrow border or borderless design of the display panel.
[0055] Please refer to Figure 1 and Figure 7 , in an alternative embodiment of the present disclosure, the shift register 11 includes a plurality of transistors, and the aspect ratio of at least some transistors in the first shift register 111 is smaller than the aspect ratio of at least some transistors in the second shift register 112.
[0056] It should be noted that the shift register 11 may include multiple transistors. Optionally, it may also include capacitors. For the specific structure, please refer to the related art, and the present disclosure does not specifically limit it. In order to reduce the width r1 of the first shift register 111 along the first direction D1, in this embodiment, the size of at least part of the transistors in the first shift register 111 is compressed by reducing the aspect ratio of at least part of the transistors in the first shift register 111, and then the overall size of the first shift register 111 is compressed, so that the width r1 of the first shift register 111 along the first direction D1 is less than the width r2 of the second shift register 112 along the second direction D2, thereby creating a setting space for the electrostatic protection unit 30 adjacent to the first shift register 111, reducing the impact of static electricity on the scanning circuit 10, and being beneficial to improving the electrostatic resistance of the display panel 100.
[0057] Figure 8 Shown is another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 8 , in an optional implementation manner of the present disclosure, at least part of the electrostatic protection units 30 are located on at least one side of the shift register 11 along the second direction D2, and at least part of the electrostatic protection units 30 are located on at least one side of the shift register 11 along the first direction D1, where the second direction D2 intersects with the first direction D1 and is parallel to the light-emitting surface of the display panel 100.
[0058] Specifically, the electrostatic protection unit 30 may be located on one side or both sides of the shift register 11 along the second direction D2, and may also be located on one side or both sides of the shift register 11 along the first direction D1. In this embodiment, part of the electrostatic protection units 30 are located on one side of the shift register 11 along the second direction D2, and part of the electrostatic protection units 30 are located on one side of the shift register 11 along the first direction D1. In this way, the relative position of the electrostatic protection unit 30 and the shift register 11 can be set according to requirements, avoiding the electrostatic protection unit 30 occupying too much longitudinal space, and being beneficial to reasonably utilizing the space of the display panel to meet the setting requirements of the electrostatic protection unit.
[0059] Please continue to refer to Figure 8 , optionally, the electrostatic protection unit 30 located on at least one side of the shift register 11 along the first direction D1 is the first electrostatic protection unit 31, and the electrostatic protection unit 30 located on at least one side of the shift register 11 along the second direction D2 is the second electrostatic protection unit 32, and the width e11 of the first electrostatic protection unit 31 along the first direction D1 is not equal to the width e12 of the second electrostatic protection unit 32 along the first direction D1.
[0060] Specifically, the electrostatic protection unit 30 can be disposed on at least one side of the shift register 11 along the first direction D1. The electrostatic protection unit 30 located on at least one side of the shift register 11 along the first direction D1 is the first electrostatic protection unit 31. It can also be disposed on at least one side of the shift register 11 along the second direction D2. The electrostatic protection unit 30 located on at least one side of the shift register 11 along the first direction D1 is the second electrostatic protection unit 32. When the electrostatic protection unit 30 is disposed at different positions, the width of the electrostatic protection unit 30 along the first direction D1 can be adjusted, so that the electrostatic protection units 30 in the display area AA are reasonably arranged. Therefore, in the present disclosure, the width e11 of the first electrostatic protection unit 31 along the first direction D1 is not equal to the width e12 of the second electrostatic protection unit 32 along the first direction D1, which will be described below through various embodiments.
[0061] Figure 9 Shown is another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 9 In an optional embodiment provided by the present disclosure, the electrostatic protection unit 30 and the shift register 11 are located in the edge region of the display area AA. A part of the electrostatic protection unit 30 is the first electrostatic protection unit 31, and a part is the second electrostatic protection unit 32. The first electrostatic protection unit 31 is located on at least one side of the shift register 11 along the first direction D1. Compared with the second electrostatic protection unit 32, the space where the first electrostatic protection unit 31 can be disposed along the first direction D1 is smaller than the space where the second electrostatic protection unit 32 can be disposed. Therefore, in this embodiment, the width e11 of the first electrostatic protection unit 31 along the first direction D1 is smaller than the width e12 of the second electrostatic protection unit 32 along the first direction D1. In this way, it is beneficial to reduce the space occupied by the first electrostatic protection unit 31 along the first direction D1, and thus it is beneficial to the arrangement of the shift register 11 and the first electrostatic protection unit 31 in the first direction D1.
[0062] Figure 10 Shown is another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 10, Another alternative embodiment provided by the present disclosure is that the electrostatic protection unit 30 and the shift register 11 are located in the area between the pixel driving circuits. Among them, the first electrostatic protection unit 31 and the shift register 11 are located between the columns of the pixel driving circuits, and the second electrostatic protection unit 32 is located between the rows of the pixel driving circuits. At this time, along the first direction D1, the space where the first electrostatic protection unit 31 can be set is larger than the space where the second electrostatic protection unit 32 can be set. Therefore, the width e11 of the first electrostatic protection unit 31 along the first direction D1 is greater than the width e12 of the second electrostatic protection unit 32 along the first direction D1. It should be noted that the width of the pixel driving circuit 40 along the first direction D1 is usually greater than the width of the shift register 11 along the first direction D1, and the gap between the pixel driving circuits 40 is small. At this time, by increasing the width e11 of the first electrostatic protection unit 31 along the first direction D1, reducing the width e21 of the first electrostatic protection unit 31 along the second direction D2, and increasing the width e22 of the second electrostatic protection unit 32 along the second direction D2, and reducing the width e12 of the second electrostatic protection unit 32 along the first direction D1, the electrostatic protection unit 30 can be reasonably set, which is beneficial to the reasonable arrangement of the pixel driving circuit 40, the shift register 11, and the electrostatic protection unit 30 in the display panel 100.
[0063] It should also be noted that the electrostatic protection unit 30 and the shift register 11 are arranged in the area between the pixel driving circuits 40, without occupying the peripheral space, which is more conducive to realizing the design of the display panel 100 with no border or extremely narrow border. In addition, if the electrostatic protection unit 30 is arranged in the edge area of the display panel 100, it may cause damage to the active layer of the electrostatic protection unit 30 itself by the module process. Therefore, arranging the electrostatic protection unit 30 in the area between the pixel driving circuits 40 can also protect the structure of the electrostatic protection unit 30 itself, which is further beneficial to improving the electrostatic conduction effect of the electrostatic protection unit 30.
[0064] Please refer to Figure 9 , For the second electrostatic protection unit 32, when the electrostatic protection unit 30 and the shift register 11 are located in the edge area of the display area AA, by increasing the width e12 of the second electrostatic protection unit 32 along the first direction D1 and reducing the width e22 of the second electrostatic protection unit 32 along the second direction D2, the space occupied by the electrostatic protection unit 30 along the second direction D2 can be reduced, avoiding the electrostatic protection unit 30 occupying too much edge area of the display panel 100, which is beneficial to realizing the design of the display panel 100 with no border or extremely narrow border.
[0065] When the electrostatic protection unit 30 and the shift register 11 are located in the area between the pixel driving circuits 40, please refer to Figure 10 and Figure 11 , Figure 11The following is another schematic plan view of a display panel provided by an embodiment of the present disclosure. The second electrostatic protection unit 32 has at least two setting manners: Please refer to Figure 11 , one of which is that, along the first direction D1, the second electrostatic protection unit 32 overlaps with the pixel driving circuit columns, and the second electrostatic protection unit 32 is located between adjacent pixel driving circuits 40 along the first direction D1. At this time, by increasing the width of the second electrostatic protection unit 32 along the second direction D2 and reducing the width of the second electrostatic protection unit 32 along the first direction D1, a reasonable layout of the second electrostatic protection unit 32 can be achieved. At the same time, the second electrostatic protection unit 32 does not occupy the space between adjacent pixel driving circuit columns, which is beneficial to reducing or avoiding the influence on the original wiring situation between the pixel driving circuit columns. Please refer to Figure 10 , the other is that, along the first direction D1, the second electrostatic protection unit 32 does not overlap with the pixel driving circuit columns, that is, the second electrostatic protection unit 32 is located between the pixel driving circuit columns. It should be noted that, in the pixel driving circuit columns, there are multiple traces extending along the second direction D2 between adjacent pixel driving circuits 40 along the first direction D1, such as reset signal lines, scan signal lines, light emission control signal lines, etc. When the second electrostatic protection unit 32 is arranged between the pixel driving circuit columns, reducing the width of the second electrostatic protection unit 32 along the first direction D1 is beneficial to reducing the overlap between the second electrostatic protection unit 32 and the traces in the pixel driving circuit columns, and is beneficial to reducing the parasitic capacitance. For the case where the second electrostatic protection unit 32 is located between the pixel driving circuit columns, the width e22 of the second electrostatic protection unit 32 along the second direction D2 can be set to be equal to the width e21 of the first electrostatic protection unit 31 along the second direction D2. The present disclosure only takes this as an example for illustration and is not limited thereto.
[0066] It should be noted that, in practical applications, the size differential design of the first electrostatic protection unit 31 and the second electrostatic protection unit 32 can be achieved by differentially setting the aspect ratios of the transistors in the first electrostatic protection unit 31 and the second electrostatic protection unit 32.
[0067] It should also be noted that the above embodiments analyze the widths of the first electrostatic protection unit 31 and the second electrostatic protection unit 32 along the first direction D1 and the second direction D2. In specific implementation, the sizes and structures of the first electrostatic protection unit 31 and the second electrostatic protection unit 32 can be set according to actual requirements to reasonably arrange the scan circuit 10 and the electrostatic protection unit 30 in the display area AA.
[0068] Please refer to Figure 9, optionally, the electrostatic protection unit 30 located on at least one side of the shift register 11 along the first direction D1 is the first electrostatic protection unit 31, and the electrostatic protection unit 30 located on at least one side of the shift register 11 along the second direction D2 is the second electrostatic protection unit 32. The width e22 of the second electrostatic protection unit 32 along the second direction D2 is not equal to the width e21 of the first electrostatic protection unit 31 along the second direction D2.
[0069] This embodiment provides a setting method for the widths of the second electrostatic protection unit 32 and the first electrostatic protection unit 31 along the second direction D2. An optional implementation provided by the present disclosure is that the electrostatic protection unit 30 and the shift register 11 are located in the edge area (the area close to the edge B) of the display area AA. The second electrostatic protection unit 32 is located on at least one side of the shift register 11 along the second direction D2. In this embodiment, the width e22 of the second electrostatic protection unit 32 along the second direction D2 is set to be less than the width e21 of the first electrostatic protection unit 31 along the second direction D2. In this way, it is beneficial to reduce the space occupied by the second electrostatic protection unit 32 along the first direction D1, thereby facilitating the reduction of the space occupied by the shift register 11 and the electrostatic protection unit 30 in the second direction D2, thus achieving a reasonable layout of the electrostatic protection unit 30, and also facilitating the design of the display panel 100 with no border or extremely narrow border. Figure 12 The following shows another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 12 Another optional implementation provided by the present disclosure is that the second electrostatic protection unit 32 is located in the edge area of the display area AA, the first electrostatic protection unit 31 and the shift register 11 are located between the columns of the pixel driving circuit, and there is sufficient space for the second electrostatic protection unit 32 along the first direction D1. Therefore, by increasing the width e12 of the second electrostatic protection unit 32 along the first direction D1 and reducing the width e22 of the second electrostatic protection unit 32 along the second direction D2, the width e22 of the second electrostatic protection unit 32 along the second direction D2 can be made less than the width e21 of the first electrostatic protection unit 31 along the second direction D2, thereby reducing the space occupied by the second electrostatic protection unit 32 along the second direction D2, facilitating the reasonable layout of the electrostatic protection unit 30, and also facilitating the design of the display panel 100 with no border or extremely narrow border.
[0070] Another optional implementation provided by the present disclosure is that the electrostatic protection unit 30 is located in the non-edge area of the display area AA. For example, please refer to Figure 11, the second electrostatic protection unit 32 is located between adjacent pixel driving circuits 40 along the first direction D1, and the first electrostatic protection unit 31 is adjacent to the shift register 11 along the first direction D1. Considering that the lateral space (the space extending along the second direction D2) between adjacent pixel driving circuits 40 along the first direction D1 is sufficient, while the longitudinal space (the space extending along the first direction D1) is limited, at this time, the width e22 of the second electrostatic protection unit 32 along the second direction D2 can be set to be greater than the width e21 of the first electrostatic protection unit 31 along the second direction D2, so as to meet the space setting requirements of the electrostatic protection units in different regions.
[0071] Figure 13 The following is another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 13 , in an optional implementation manner of the present disclosure, the shift register 11 includes a first module 11-a and a second module 11-b arranged along the second direction D2. The first module 11-a and the second module 11-b are electrically connected at least through a first trace 11-c, and at least part of the electrostatic protection unit 30 is located between the first module 11-a and the second module 11-b; wherein, the second direction D2 intersects with the first direction D1 and is parallel to the light-emitting surface of the display panel 100. Optionally, the first module 11-a in the shift register 11 is a latching module, and the second module 11-b is a buffer module. Of course, in some other embodiments of the present disclosure, the shift register 11 may further include a logic module disposed between the latching module and the buffer module. The present disclosure does not specifically limit this. For the specific structures of these modules included in the shift register, reference may be made to related technologies, and the present disclosure does not specifically limit this.
[0072] When the shift register is divided into a first module 11-a and a second module 11-b connected by the first trace 11-c, there is a certain space between the first module 11-a and the second module 11-b. To facilitate the connection of the first signal line to the first module 11-a and the second module 11-b in the shift register, the first signal line 20 can be disposed in the area between the first module 11-a and the second module 11-b. In this embodiment, the electrostatic protection unit 30 is disposed in the area between the first module 11-a and the second module 11-b. In this way, the electrostatic protection unit 30 is closer to the first signal line 20, which is beneficial to reducing the winding generated when the electrostatic protection unit 30 is connected to the first signal line 20, and simplifies the overall wiring structure of the display panel while improving the antistatic ability of the display panel 100.
[0073] It should be noted that the intermediate component for connecting the first module 11-a and the second module 11-b is not limited to the first trace 11-c, and may also include other structures, such as cross-bridges, vias, etc. The present disclosure only takes the first trace 11-c as an example for illustration and is not limited thereto.
[0074] Please refer to Figure 1 Figure 1 , in an alternative embodiment of the present disclosure, the first signal line 20 includes a first sub-signal line 21 and a second sub-signal line 22, and the electrostatic protection unit 30 includes a first electrostatic protection unit 31 and a second electrostatic protection unit 32. The first electrostatic protection unit 31 is electrically connected to the first sub-signal line 21, and the second electrostatic protection unit 32 is electrically connected to the second sub-signal line 22. Along the second direction D2, the first electrostatic protection unit 31 and the second electrostatic protection unit 32 are located on the same side of the first sub-signal line 21 and the second sub-signal line 22; along the second direction D2, the distance L1 between the first electrostatic protection unit 31 and the first sub-signal line 21 is less than or equal to the distance L2 between the second electrostatic protection unit 32 and the first sub-signal line 21.
[0075] Specifically, the first signal line 20 is a trace connected to the scanning circuit 10 and providing signals to the scanning circuit 10, and the first signal line 20 includes a first sub-signal line 21 and a second sub-signal line 22. It should be noted that the first sub-signal line 21 and the second sub-signal line 22 extend substantially along the first direction D1, and the signals transmitted by the first sub-signal line 21 and the second sub-signal line 22 may be the same or different. Both the first sub-signal line 21 and the second sub-signal line 22 are connected to the electrostatic protection unit 30. The first electrostatic protection unit 31 is connected to the first sub-signal line 21, and the second electrostatic protection unit 32 is connected to the second sub-signal line 22. In the present disclosure, the first electrostatic protection unit 31 and the second electrostatic protection unit 32 are arranged on the same side of the first sub-signal line 21 and the second sub-signal line 22, and the distance L1 between the first electrostatic protection unit 31 and the first sub-signal line 21 is less than or equal to the distance L2 between the second electrostatic protection unit 32 and the first sub-signal line 21. In other words, along the second direction D2, there is no other electrostatic protection unit 30 between the first sub-signal line 21 and the first electrostatic protection unit 31, and there is no other electrostatic protection unit 30 between the second sub-signal line 22 and the second electrostatic protection unit 32. The electrostatic protection unit 30 and the first signal line 20 are connected in close proximity. In this way, the connection line between the electrostatic protection unit 30 and the first signal line 20 is short, which is beneficial to simplifying the wiring structure. At the same time, the electrostatic conduction distance is shortened, which is beneficial to electrostatic conduction and further beneficial to improving the antistatic ability of the display panel 100.
[0076] Figure 14 Shown is another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 14, in an alternative embodiment of the present disclosure, the first signal line 20 includes a first sub-signal line 21 and a second sub-signal line 22. Along the second direction D2, the first sub-signal line 21 is located on the first side of the shift register 11, and the second sub-signal line 22 is located on the second side of the shift register 11. The second direction D2 intersects the first direction D1; the electrostatic protection unit 30 connected to the first sub-signal line 21 is located on the first side of the shift register 11, and the electrostatic protection unit 30 connected to the second sub-signal line 22 is located on the second side of the shift register 11.
[0077] It should be noted that Figure 13 the solution in which the shift register 11 and the electrostatic protection unit 30 are adjacent to the edge of the display panel extending along the first direction D1, but not limited thereto. The solution of this embodiment is also applicable to the solution in which the shift register 11 and the electrostatic protection unit 30 are not adjacent to the edge of the display panel extending along the first direction D1.
[0078] Specifically, in this embodiment, the first signal line 20 includes a first sub-signal line 21 and a second sub-signal line 22. Both the first sub-signal line 21 and the second sub-signal line 22 are traces for providing signals to the scanning circuit 10. The signals transmitted by the first sub-signal line 21 and the second sub-signal line 22 may be the same or different. The first sub-signal line 21 and the second sub-signal line 22 are located on different sides of the shift register 11 along the second direction D2. Specifically, the first sub-signal line 21 is located on the first side of the shift register 11 along the second direction D2, and the second sub-signal line 22 is located on the second side of the shift register 11 along the second direction D2, where the first side and the second side are opposite sides of the shift register 11 along the second direction D2. That is to say, along the second direction D2, the shift register 11 is located between the first sub-signal line 21 and the second sub-signal line 22. In this embodiment, it is provided that the electrostatic protection unit 30 connected to the first sub-signal line 21 is located on the first side of the shift register 11, and the electrostatic protection unit 30 connected to the second sub-signal line 22 is located on the second side of the shift register 11, that is, both the first sub-signal line 21 and the electrostatic protection unit 30 connected to the first sub-signal line 21 are located on the first side of the shift register 11, and both the second sub-signal line 22 and the electrostatic protection unit 30 connected to the second sub-signal line 22 are located on the second side of the shift register 11. In this way, the first sub-signal line 21 and the electrostatic protection unit 30 connected thereto are connected nearby, and the second sub-signal line 22 and the electrostatic protection unit 30 connected thereto are connected nearby. The connection line between the electrostatic protection unit 30 and the first signal line 20 connected thereto is short, which is beneficial to simplifying the overall wiring structure of the display panel 100. At the same time, the electrostatic conduction distance is shortened, which is beneficial to the export of static electricity and further beneficial to improving the antistatic ability of the display panel 100.
[0079] It should be noted that, in the above embodiment, the electrostatic protection unit 30 connected to the first sub-signal line 21 is located on the side of the first sub-signal line 21 away from the second sub-signal line 22, and the electrostatic protection unit 30 connected to the second sub-signal line 22 is located on the side of the second sub-signal line 22 away from the first sub-signal line 21. The present disclosure only takes this as an example for illustration and is not limited to this.
[0080] Please refer to Figure 1 In an optional embodiment of the present disclosure, at least two electrostatic protection units 30 are located on the same side of the same first signal line 20 along the second direction D2, and the second direction D2 intersects with the first direction D1; at least two electrostatic protection units 30 located on the same side of the same first signal line 20 along the second direction D2 are respectively connected to different first signal lines 20.
[0081] Specifically, along the second direction D2, at least two electrostatic protection units 30 are included on the same side of the first signal line 20, and the at least two electrostatic protection units 30 are respectively connected to different first signal lines 20. In this embodiment, two electrostatic protection units 30 located on the same side of the first signal line 20 are respectively connected to different first signal lines 20, and electrostatic protection units 30 are provided for different first signal lines 20, and the electrostatic protection units 30 are electrically connected to the first signal lines 20. When the display panel 100 is subjected to static electricity, the static electricity acting on different first signal lines 20 can be guided out through the electrostatic protection units 30, which is further conducive to avoiding affecting the normal operation of the scanning circuit 10, thereby avoiding affecting the normal display of the display panel 100, and further conducive to improving the overall anti-static performance of the display product.
[0082] Figure 15 FIG. 1 is another schematic diagram of a planar structure of a display panel provided in an embodiment of the present disclosure. Please refer to FIG. Figure 15 In an optional embodiment of the present disclosure, at least part of the electrostatic protection unit 30 includes an electrically connected first unit 301 and a second unit 302, and the first unit 301 and the second unit 302 are respectively located on both sides of the first signal line 20 along the second direction D2; wherein the second direction D2 intersects with the first direction D1 and is parallel to the light emitting surface of the display panel 100.
[0083] Specifically, the electrostatic protection unit 30 includes a first unit 301 and a second unit 302, and the first unit 301 and the second unit 302 are electrically connected. In this embodiment, the first unit 301 and the second unit 302 are respectively arranged on both sides of the first signal line 20 along the second direction D2, that is, the orthographic projection of the electrostatic protection unit 30 on the display panel 100 overlaps with the orthographic projection of the first signal line 20 on the display panel 100. Thus, it is further beneficial to shorten the distance between the electrostatic protection unit 30 and the first signal line 20, thereby improving the electrostatic conduction ability of the electrostatic protection unit 30, avoiding affecting the normal display of the display panel 100, and further being beneficial to improving the overall electrostatic protection performance of the display product.
[0084] It should be noted that the electrostatic protection unit 30 can be arranged on at least one side of the shift register 11 along the second direction D2, or can be arranged on at least one side of the shift register 11 along the first direction D1. When the electrostatic protection unit 30 is located on at least one side of the shift register 11 along the second direction D2, there is a relatively large setting space for the first unit 301 and the second unit 302 of the electrostatic protection unit 30 along the first direction D1. Therefore, by increasing the width of the first unit 301 and the second unit 302 of the electrostatic protection unit 30 along the first direction D1 and reducing the width of the first unit 301 and the second unit 302 of the electrostatic protection unit 30 along the second direction D2, the space occupied along the second direction D2 can be reduced, which is beneficial to realizing the borderless or extremely narrow border design of the display panel 100. When the electrostatic protection unit 30 is located on at least one side of the shift register 11 along the first direction D1, there is a relatively large setting space for the first unit 301 of the electrostatic protection unit 30 along the first direction D1, and there is a relatively large setting space for the second unit 302 along the second direction D2. Therefore, the width of the first unit 301 along the first direction D1 can be set to be greater than the width of the second unit 302 along the first direction D1, and the width of the first unit 301 along the second direction D2 can be set to be less than the width of the second unit 302 along the second direction D2, so as to reasonably arrange the electrostatic protection unit 30.
[0085] The circuit structure of the electrostatic protection unit 30 will be described below. Figure 16 The following shows a schematic diagram of a circuit structure of the electrostatic protection unit provided by an embodiment of the present disclosure. Please refer to Figure 16, An alternative embodiment provided by the present disclosure is that the electrostatic protection unit 30 includes a first transistor T1 and a second transistor T2. The first transistor T1 is a P-type transistor, and the second transistor T2 is an N-type transistor. The gate and the first pole of the first transistor T1 are both connected to the high-level signal line VGH, and the second pole of the first transistor T1 is connected to the input / output terminal IN / OUT; the gate and the first pole of the second transistor T2 are both connected to the low-level signal line VGL, and the second pole of the second transistor T2 is connected to the input / output terminal IN / OUT. Since the first transistor T1 is a P-type transistor and the gate of the first transistor T1 is connected to the high-level signal line VGH, when the second pole of the first transistor T1 is floating, the first transistor T1 is turned off; when the input / output terminal IN / OUT captures a high-level static electricity, the potential of the second pole of the first transistor T1 is much higher than the potential of the gate, then the first transistor T1 is turned on, and the static electricity is conducted to the high-level signal line VGH. Similarly, the second transistor T2 is an N-type transistor, and the gate of the second transistor T2 is connected to the low-level signal line VGL. When the second pole of the second transistor T2 is floating, the second transistor T2 is turned off; when the input / output terminal IN / OUT captures a low-level static electricity, the potential of the second pole of the second transistor T2 is much lower than the potential of the gate, then the second transistor T2 is turned on, and the static electricity is conducted to the low-level signal line VGL. It should be noted that the circuit structure of the above electrostatic protection unit 30 only includes two transistors, which occupies a small space and is beneficial to reducing the space occupied by the electrostatic protection unit 30.
[0086] Optionally, for the above electrostatic protection unit 30, Figure 17 The following is a schematic diagram of another circuit structure of the electrostatic protection unit provided by the embodiment of the present disclosure. Please refer to Figure 17 , Another alternative embodiment provided by the present disclosure is that the first transistor T1 and the second transistor T2 are dual-gate transistors. The dual-gate transistors are beneficial to improving the stability of the first transistor T1 and the second transistor T2, and at the same time reducing the leakage current, thereby reducing the power consumption of the electrostatic protection unit 30. In this embodiment, the principle of static electricity conduction is the same as that of Figure 16 the electrostatic protection unit 30 described above, and will not be elaborated here.
[0087] Figure 18 The following is a schematic diagram of yet another circuit structure of the electrostatic protection unit provided by the embodiment of the present disclosure. Please refer to Figure 18, Another optional implementation provided by the present disclosure is that the electrostatic protection unit 30 includes a third transistor T3 and a fourth transistor T4. Both the third transistor T3 and the fourth transistor T4 are P-type transistors, and both the third transistor T3 and the fourth transistor T4 are double-gate transistors. When the input / output terminal IN / OUT captures a high-level electrostatic charge, the gate potential of the third transistor T3 is much lower than the second potential, so the third transistor T3 conducts, and the high-level electrostatic charge is conducted to the high-level signal line VGH. Similarly, when the input / output terminal IN / OUT captures a low-level electrostatic charge, the gate potential of the fourth transistor T4 is lower than the first low-level signal, and the fourth transistor T4 conducts, and the low-level electrostatic charge is conducted to the first low-level signal line. It should be noted that the present disclosure only uses the above embodiments as examples to illustrate the structure and principle of the electrostatic protection unit 30, but is not limited thereto.
[0088] Please refer to Figure 1 , In an optional implementation of the present disclosure, the first signal line 20 includes a first type of signal line 201 and a second type of signal line 202. The first type of signal line 201 receives a fixed potential signal, and the second type of signal line 202 receives a non-fixed potential signal. The number of electrostatic protection units 30 connected to at least one first type of signal line 201 is n1, and the number of electrostatic protection units 30 connected to at least one second type of signal line 202 is n2, where n1 < n2. Optionally, the fixed potential signal mentioned in this embodiment may be, for example, a positive power supply voltage signal or a negative power supply voltage signal, and the non-fixed potential signal may be, for example, a clock signal, a start trigger signal, etc. The present disclosure does not specifically limit this.
[0089] Specifically, the first signal line 20 is used to provide signals to the scanning circuit 10. The signals required by the scanning circuit 10 include fixed potential signals and non-fixed potential signals. The first type of signal line 201 transmits fixed potential signals to the scanning circuit 10, and the second type of signal line 202 transmits non-fixed potential signals to the scanning circuit 10. For the first type of signal line 201 that transmits fixed potential signals, since the signal it transmits is a fixed potential signal, the influence of static electricity on the first type of signal line 201 is relatively small. For the second type of signal line 202 that transmits non-fixed potential signals, since the signal it transmits is a non-fixed potential signal, when the display panel 100 is affected by static electricity, the non-fixed potential signal is affected relatively greatly. Therefore, the influence of static electricity on the second type of signal line 202 is relatively large. Therefore, in this embodiment, it is set that the number n1 of electrostatic protection units 30 connected to the first type of signal line 201 is less than the number n2 of electrostatic protection units 30 connected to the second type of signal line 202. In this way, the electrostatic protection units 30 are set as needed. The number of electrostatic protection units 30 connected to the first type of signal line 201, which is less affected by static electricity, is small, and the number of electrostatic protection units 30 connected to the second type of signal line 202, which is more affected by static electricity, is large. The number of electrostatic protection units 30 is reasonably set. On the one hand, it is beneficial to conduct the static electricity acting on the first signal line 20 and avoid affecting the normal operation of the scanning circuit 10. On the other hand, it is beneficial to reduce the number of electrostatic protection units 30 and simplify the structure of the display panel 100.
[0090] Further, in an alternative embodiment of the present disclosure, n1 = 0. For the first type of signal line 201 that transmits fixed potential signals to the scanning circuit 10, the electrostatic protection unit 30 may not be provided, which is beneficial to reducing the number of electrostatic protection units 30 and simplifying the structure of the display panel 100.
[0091] Please refer to Figure 1 and Figure 2 , in an alternative embodiment of the present disclosure, the display area AA includes a first area AA1 and a second area AA2 located at least on one side of the first area AA1 along the second direction D2. The second direction D2 intersects the first direction D1 and is parallel to the light-emitting surface of the display panel 100; the display panel 100 further includes pixel driving circuits 40 arranged in an array and light-emitting elements LD connected to the pixel driving circuits 40. The pixel driving circuits 40 are located in the first area AA1, and the light-emitting elements LD are located in the first area AA1 and the second area AA2; the scanning circuit 10 and the electrostatic protection unit 30 are located in the second area AA2. It should be noted that for the sake of clear illustration in the drawings of the present disclosure, the light-emitting elements LD are not shown in Figure 1 , and the light-emitting elements LD are connected to the pixel driving circuits 40. For the connection method, please refer to Figure 2 . Optionally, the light-emitting elements LD are uniformly arranged in the first area AA1 and the second area AA2 of the display panel.
[0092] Specifically, in this embodiment, the first region AA1 and the second region AA2 are arranged along the second direction D2, and the second region AA2 is located in the edge region of the display region AA. The light-emitting elements LD are evenly arranged in the display region AA. The light-emitting elements LD are also arranged in both the first region AA1 and the second region AA2. Optionally, the pixel driving circuits 40 are evenly arranged in the first region AA1, and at least the light-emitting elements LD in the second region AA2 are connected to the corresponding pixel driving circuits 40 through jumper wires. In the present disclosure, the pixel driving circuits 40 are arranged in an array in the first region AA1, which is beneficial to the rational use of the space of the display panel 100 and saves extra space for facilitating the arrangement of other circuits, wirings and other structures in the display panel 100. At the same time, the pixel driving circuits 40 are arranged at a relatively central position in the display panel 100, which is beneficial to avoiding damage to the pixel driving circuits 40 during the cutting process. In addition, in this embodiment, the scanning circuit 10 and the electrostatic protection unit 30 are centrally arranged in the second region AA2, without occupying the space of the pixel driving circuits 40 in the first region AA1, reducing the overlap of the conductive layers between the circuits, which is beneficial to reducing the coupling capacitance, thereby reducing the adverse effects between different circuits in the display panel 100. At the same time, the layout of the pixel driving circuits 40 is not affected by the scanning circuit 10 and the electrostatic protection unit 30, which is beneficial to avoiding an increase in the complexity of the manufacturing process after the introduction of the scanning circuit 10 and the electrostatic protection unit 30.
[0093] Please refer to Figure 9, the present disclosure provides an arrangement method in which the electrostatic protection unit 30 and the shift register 11 are centrally arranged in the second region AA2. Regarding the relative positions of the electrostatic protection unit 30 and the shift register 11, in an alternative embodiment of the present disclosure, in the second region AA2, along the second direction D2, the electrostatic protection unit 30 is located on the side of the shift register 11 away from the first region AA1; and / or, along the first direction D1, the electrostatic protection unit 30 is located on at least one side of the shift register 11. Specifically, both the electrostatic protection unit 30 and the shift register 11 are located in the second region AA2. The electrostatic protection unit 30 can be located on one side of the shift register 11 along the second direction D2; or can be located on one side of the shift register 11 along the first direction D1; or can be partially located on one side of the shift register 11 along the second direction D2 and partially located on one side of the shift register 11 along the first direction D1. It should be noted that when the electrostatic protection unit 30 is located on one side of the shift register 11 along the second direction D2, it does not occupy the space arranged by the shift register 11 along the first direction D1, reducing the influence on the arrangement space of the shift register 11. When the electrostatic protection unit 30 is located on one side of the shift register 11 along the first direction D1, it is beneficial to reduce the space occupied by the electrostatic protection unit 30 along the second direction D2, which is more conducive to realizing the borderless or ultra-narrow border design of the display panel 100. When splicing the borderless display panel 100 to form a large-size display panel 100, it is beneficial to weaken the seam and is more conducive to improving the display effect of the large-size display panel 100.
[0094] Please refer to Figure 1 , in an alternative embodiment of the present disclosure, the first signal line 20 includes a first sub-signal line 21 and a second sub-signal line 22. In the second region AA2, along the second direction D2, the first sub-signal line 21 is located between the second sub-signal line 22 and the edge B of the display panel 100, and the first sub-signal line 21 receives a non-fixed potential signal; the number of electrostatic protection units 30 connected to one first sub-signal line 21 is n01, and the number of electrostatic protection units 30 connected to one second sub-signal line 22 is n02, and n01 > n02.
[0095] Specifically, in the display panel 100, the first signal line 20 is connected to the scanning circuit 10 and provides signals to the scanning circuit 10. The provided signals include non-fixed potential signals and fixed potential signals. Among them, the first sub-signal line 21 receives non-fixed potential signals. Optionally, the fixed potential signals mentioned in this embodiment may be, for example, positive power supply voltage signals and negative power supply voltage signals, and the non-fixed potential signals may be, for example, clock signals, start trigger signals, etc. The present disclosure does not specifically limit this. The first sub-signal line 21 is located on the side of the second sub-signal line 22 away from the first area AA1. The first sub-signal line 21 is closer to the edge of the display panel 100 than the second sub-signal line 22. When the display panel 100 is affected by static electricity, the first sub-signal line 21 close to the edge B is more likely to be affected by static electricity. Therefore, in this embodiment, the number n01 of electrostatic protection units 30 connected to one first sub-signal line 21 is greater than the number n02 of electrostatic protection units 30 connected to one second sub-signal line 22, that is, n01 > n02. By setting more electrostatic protection units 30 for the first sub-signal line 21 that is more likely to be affected by static electricity, it is more conducive to static electricity conduction, avoiding affecting the normal operation of the scanning circuit 10, and thus avoiding affecting the normal display of the display panel 100. Therefore, it is more conducive to improving the overall electrostatic protection performance of the display product. It should be noted that Figure 1 The illustrated embodiment is only described by taking n01 = 4 and n02 = 2 as an example, but is not limited thereto.
[0096] Please continue to refer to Figure 1 , for the type of the second sub-signal line 22, in an optional embodiment of the present disclosure, the second sub-signal line 22 includes a fixed potential signal line and a non-fixed potential signal line. The number of electrostatic protection units 30 connected to one fixed potential signal line is less than the number of electrostatic protection units 30 connected to one non-fixed potential signal line. Specifically, the first sub-signal line 21 includes a fixed potential signal line that receives a fixed potential signal and a non-fixed potential signal line that receives a non-fixed potential signal. For the non-fixed potential signal line, during the signal transmission process, the signal received by the non-fixed potential signal line will change. When the display panel 100 is affected by static electricity, the non-fixed potential signal line is greatly affected by static electricity. Therefore, in this embodiment, the number of electrostatic protection units 30 connected to one fixed potential signal line is set to be less than the number of electrostatic protection units 30 connected to one non-fixed potential signal line. In this way, it is conducive to conducting the static electricity in the non-fixed potential signal line, avoiding affecting the normal operation of the scanning circuit 10, and thus avoiding affecting the normal display of the display panel 100. Therefore, it is conducive to improving the overall electrostatic protection performance of the display product.
[0097] For a fixed-potential signal line, the received signal is a fixed-potential signal. When the display panel 100 is affected by static electricity, the fixed-potential signal line is hardly affected by static electricity or is less affected by static electricity. Therefore, an optional implementation provided by the present disclosure is that the number of electrostatic protection units 30 connected to a fixed-potential signal line is zero, that is, there is a fixed-potential signal line not connected to the electrostatic protection unit 30. In this way, it is beneficial to reduce the number of electrostatic protection units 30, thereby simplifying the overall structure of the display panel 100.
[0098] Please continue to refer to Figure 1 and Figure 5 , the types of the first signal lines 20 in the display panel 100 will be described below. The first signal lines 20 include first sub-signal lines 21 and second sub-signal lines 22, and the first sub-signal lines 21 receive non-fixed-potential signals. In an optional implementation of the present disclosure, the first sub-signal lines 21 are start trigger signal lines STV, and the start trigger signal lines STV are configured to transmit control signals to the shift register 11 located in the first stage as input signals of the first-stage shift register 11. The second sub-signal lines 22 are at least one of a first power supply voltage signal line Vgh, a second power supply voltage signal line Vgl, a first clock signal line XCK, and a second clock signal line CK. Optionally, the second signal lines 22 may further include other types of signal lines, such as control signal lines for providing control signals to the shift register to control whether the shift register 11 outputs an effective level in a scan signal. Optionally, the signals transmitted by the control signal lines are ramp signals or other non-constant level signals.
[0099] Please refer to Figure 9 , in an optional implementation of the present disclosure, the electrostatic protection units 30 connected to the first sub-signal lines 21 are located on the side of the shift register 11 away from the first area AA1, and the electrostatic protection units 30 connected to at least one of the second sub-signal lines 22 are located on at least one side of the shift register 11 along the first direction D1.
[0100] Specifically, the first sub-signal line 21 is a start trigger signal line, receiving a start trigger signal, and the first sub-signal line 21 is located between the second sub-signal line 22 and the edge B of the display panel 100, and the first sub-signal line 21 is closer to the edge B of the display panel 100, and the start trigger signal received by the first sub-signal line 21 is a non-fixed potential signal. When the display panel 100 is subjected to static electricity, the first sub-signal line 21 located at the edge is easily affected by static electricity, and the first sub-signal line 21 receiving the non-fixed potential signal is easily affected by static electricity. Therefore, in this embodiment, the electrostatic protection unit 30 connected to the first sub-signal line 21 is arranged on the side of the shift register 11 away from the first area AA1, and the electrostatic protection unit 30 is closer to the edge of the display panel 100 and is shorter from the first sub-signal line 21. In this way, it is more conducive to the extraction of static electricity acting on the first sub-signal line 21, avoiding affecting the normal operation of the scanning circuit 10, thereby avoiding affecting the normal display of the display panel 100, and thus helping to improve the overall anti-static performance of the display product. In addition, the second sub-signal line 22 is closer to the shift register 11 than the first sub-signal line 21. Therefore, in this embodiment, the electrostatic protection unit 30 connected to at least one second sub-signal line 22 is located on at least one side of the shift register 11 along the first direction D1. With this arrangement, the distance between the electrostatic protection unit 30 connected to the second sub-signal line 22 and the second sub-signal line 22 is shorter, which is more conducive to the derivation of static electricity in the second sub-signal line 22, avoiding affecting the normal operation of the scanning circuit 10, thereby avoiding affecting the normal display of the display panel 100, and thus helping to improve the overall anti-static performance of the display product.
[0101] It should be noted that the above embodiment provides a design idea of setting the shift register 11 connected to the first signal line 20 at a position closer to the first signal line 20, so as to be more conducive to the static electricity in the first signal line 20, but the present disclosure is not limited to this. It should also be noted that the number of electrostatic protection units connected to the first signal line shown in each embodiment of the present disclosure is for illustration only and is not limited to this.
[0102] Please refer to Figure 1 In an optional embodiment of the present disclosure, along the second direction D2, the electrostatic protection unit 30 connected to the first sub-signal line 21 and the electrostatic protection unit 30 connected to the second sub-signal line 22 are both located on the side of the shift register 11 away from the first area AA1, and along the first direction D1, the electrostatic protection unit 30 connected to the second sub-signal line 22 is located between the electrostatic protection units 30 connected to the first sub-signal line 21.
[0103] Specifically, the electrostatic protection units 30 connected to the first sub-signal line 21 and the second sub-signal line 22 are both located in the second region AA2, and on the side of the shift register 11 away from the first region AA1, that is, the electrostatic protection unit 30 is located on the side of the shift register 11 close to the edge B of the display panel 100. Since the first sub-signal line 21 is close to the edge B of the display panel extending along the first direction D1, it is most vulnerable to static electricity. For example, during the panel cutting process, static electricity may be generated at both the edge of the display panel extending along the first direction D1 and the edge extending along the second direction D2. Therefore, in this embodiment, among the electrostatic protection units 30 arranged along the first direction D1, the electrostatic protection unit 30 connected to the first sub-signal line 21 is located on both sides close to the edge of the display area AA extending along the second direction D2. The electrostatic protection unit 30 connected to the first sub-signal line 21 is located at a position close to the end of the first sub-signal line 21. When the display panel 100 is affected by static electricity, it is beneficial to export the static electricity through the electrostatic protection unit 30, avoiding affecting the display effect of the display panel 100 and the circuits in the display panel 100. Therefore, it is beneficial to improve the overall electrostatic resistance of the display panel 100.
[0104] Optionally, the first sub-signal line 21 receives a non-fixed potential signal, and the first sub-signal line 21 is located at a position close to the edge of the display panel 100 and is more vulnerable to static electricity. Therefore, the electrostatic protection unit 30 connected to the first sub-signal line 21 is arranged on both sides close to the edge of the display panel 100 along the first direction D1, at a position close to the end of the first sub-signal line 21, which is beneficial for static electricity export. Compared with the first sub-signal line 21, the second sub-signal line 22 is relatively less affected by static electricity. Then, the electrostatic protection unit 30 connected to the second sub-signal line 22 is arranged between the electrostatic protection units 30 connected to the first sub-signal line 21.
[0105] Figure 19 Shown is another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 19, in an alternative embodiment of the present disclosure, the scanning circuit 10 includes N - stage shift registers 11, where N≥3; the display panel 100 includes a first edge C1 and a second edge C2 oppositely arranged along the first direction D1. The first - stage shift register 11 - 1 is adjacent to the first edge C1, and the N - th (i.e., the last - stage) shift register 11 - N is adjacent to the second edge C2; the electrostatic protection unit 30 connected to the first sub - signal line 21 includes a first electrostatic protection unit 31 and a second electrostatic protection unit 32. Along the first direction D1, the distance between the first electrostatic protection unit 31 and the first edge C1 is less than the distance between the second - stage shift register 11 - 2 and the first edge C1. That is to say, the first electrostatic protection unit 31 is closer to the first edge C1 relative to the second - stage shift register 11 - 2. The distance between the second electrostatic protection unit 32 and the second edge C2 is less than the distance between the (N - 1) - th stage shift register 11 - N - 1 and the second edge C2. That is to say, the second electrostatic protection unit 32 is closer to the second edge C2 relative to the penultimate - stage shift register 11 - N - 1.
[0106] In this way, the first electrostatic protection unit 31 and the second electrostatic protection unit 32 connected to the first sub - signal line 21 are respectively connected to the two end - region areas on the opposite sides of the first sub - signal line 21 along the first direction D1. Considering that during the production process of the display panel, the probability of being affected by static electricity in the corner region of the display panel is relatively high, and since the first sub - signal line 21 is closest to the edge region of the display panel, the probability of being affected by static electricity on the first signal line is relatively high. Therefore, in this embodiment, the two first electrostatic protection units connected to the first sub - signal line 21 are respectively arranged at positions near the corner regions of the two ends of the first sub - signal line close to the display panel. When the display panel 100 is affected by static electricity, it is more conducive to timely export the static electricity through the electrostatic protection unit 30 from the two end - region areas of the first sub - signal line 21, avoiding affecting the display effect of the display panel 100 and the circuits in the display panel 100. Therefore, it is beneficial to improve the overall anti - static ability of the display panel 100.
[0107] It should be noted that the first sub - signal line 21 receives a non - fixed potential signal, and the first sub - signal line 21 is located near the edge of the display panel 100 and is more likely to be affected by static electricity. Optionally, the first sub - signal line 21 is a start - trigger signal. In this embodiment, the two electrostatic protection units 30 are respectively connected to the end - region areas of the first sub - signal line 21, which is beneficial to the export of static electricity.
[0108] Figure 20 The following shows another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 19 and Figure 20, further, optionally, along the first direction D1 or the second direction D2, the first electrostatic protection unit 31 is adjacent to the first-stage shift register 11-1 or the second-stage shift register 11-2, and the second electrostatic protection unit 32 is adjacent to the N-stage shift register 11-N or the N-1-stage shift register 11-N-1. Figure 19 The present disclosure provides an optional implementation in which the first electrostatic protection unit 31 is adjacent to the first stage shift register 11-1 along the second direction D2, and the second electrostatic protection unit 32 is adjacent to the Nth stage shift register 11-N along the second direction D2. Figure 20 , the present disclosure provides another optional implementation, that is, the first electrostatic protection unit 31 is adjacent to the second-stage shift register 11-2 along the second direction D2, and the second electrostatic protection unit 32 is adjacent to the N-1-th stage shift register 11N-1 along the second direction D2. It should be noted that the present disclosure only takes the above embodiment as an example for description, and is not limited thereto. The above embodiment is intended to illustrate that the first electrostatic protection unit 31 and the second electrostatic protection unit 32 connected to the first sub-signal line 21 are located in a region close to the first edge C1 or the second edge C2, and the electrostatic protection unit 30 can be adjacent to the shift register 11 along the first direction D1, and can also be adjacent to the shift register 11 along the second direction D2.
[0109] Figure 1 , Figure 9 , Figure 14 , Figure 15 , Figure 19 and Figure 20 In the illustrated embodiment, the scanning circuit 10 and the electrostatic protection unit 30 are located in the second area AA2 close to the edge B of the display panel 100. The scanning circuit 10 and the electrostatic protection unit 30 are arranged in the second area AA2, and the pixel driving circuit 40 is arranged in the first area AA1. The scanning circuit 10 and the electrostatic protection unit 30 and the pixel driving circuit 40 are arranged in different areas. While improving the anti-static ability of the display panel 100, the space of the first area AA1 is not occupied, and the influence of the scanning circuit 10 and the electrostatic protection unit 30 on the pixel driving circuit 40 of the first area AA1 is reduced.
[0110] In some other embodiments of the present disclosure, the scanning circuit 10, the electrostatic protection unit 30 and the pixel driving circuit 40 may also be arranged in the same area, please refer to Figure 10 and Figure 11, in an alternative embodiment of the present disclosure, the display area AA includes a first area AA1 and a second area AA2 located on at least one side of the first area AA1 along the second direction D2. The second direction D2 intersects the first direction D1 and is parallel to the light-emitting surface of the display panel 100; the display panel 100 further includes pixel driving circuits 40 arranged in an array and light-emitting elements LD connected to the pixel driving circuits 40. The pixel driving circuits 40 are located in the first area AA1, and the light-emitting elements LD are located in the first area AA1 and the second area AA2; the scanning circuit 10 and the electrostatic protection unit 30 are located in the first area AA1. It should be noted that for the drawings of the present disclosure to clearly illustrate the positional relationship of the scanning circuit 10, the electrostatic protection unit 30, and the pixel driving circuits 40 in the first area AA1, Figure 10 and Figure 11 only the light-emitting elements LD in the second area AA2 are shown in, and the light-emitting elements LD in the first area AA1 are not shown. However, in fact, both the first area AA1 and the second area AA2 include light-emitting elements LD. Optionally, the light-emitting elements located in the first area AA1 and the second area AA2 are arranged uniformly.
[0111] In this embodiment, the pixel driving circuits 40 are arranged in an array in the first area AA1, and the scanning circuit 10 and the electrostatic protection unit 30 are also arranged in the first area AA1. Thus, the scanning circuit 10 and the electrostatic protection unit 30 do not occupy the space of the second area AA2, which is beneficial to realizing the design of the display panel 100 with no border or extremely narrow border.
[0112] Figure 21 Shown is another schematic plan view of the display panel provided by the embodiment of the present disclosure. Please refer to Figure 21 , in an alternative embodiment of the present disclosure, the pixel driving circuits 40 arranged in an array include a plurality of rows H of pixel driving circuits arranged along the first direction D1 and a plurality of columns L of pixel driving circuits arranged along the second direction D2. There is a first gap G between adjacent pixel driving circuit columns L. The second direction D2 intersects the first direction D1; the shift register 11 and the electrostatic protection unit 30 are located between different rows of pixel driving circuits 40. Along the first direction D1, the shift register 11 does not overlap with the first gap G at least partially, and / or the electrostatic protection unit 30 does not overlap with the first gap G at least partially.
[0113] When the scanning circuit 10, the electrostatic protection unit 30, and the pixel driving circuit 40 are arranged in the same area, it is necessary to consider reducing or avoiding the influence on the original wiring in the first area AA1. Specifically, the first area AA1 includes a plurality of columns of pixel driving circuits arranged along the second direction D2, and a first gap G is included between adjacent columns of pixel driving circuits. In at least part of the first gap G, there are usually traces extending along the first direction D1, such as data lines, first-class power voltage signal lines, and second-class power voltage signal lines. The data line is configured to provide a data signal to the pixel driving circuit 40. Optionally, the pixel driving circuit 40 includes a pulse amplitude modulation circuit and a pulse width modulation circuit. The pulse amplitude modulation circuit is configured to control the amplitude of the driving current based on the applied pulse amplitude modulation data, and the pulse width modulation circuit is configured to control the pulse width of the driving current. The first-class power voltage signal line is a power signal line electrically connected to the pulse width modulation circuit, and the second-class power voltage signal line is a power signal line electrically connected to the pulse amplitude modulation circuit.
[0114] To reduce the influence on the signals of the pixel driving circuit 40, one implementation is to minimize the overlap with the first gap G. That is to say, it is necessary to reduce the overlap between the shift register 11 and the electrostatic protection unit 30 and the first gap G. An optional implementation provided by the present disclosure is that the shift register 11 and the first gap G are at least partially non-overlapping. Another optional implementation provided by the present disclosure is that the electrostatic protection unit 30 and the first gap G are at least partially non-overlapping; yet another optional implementation provided by the present disclosure is that the shift register 11 and the first gap G are at least partially non-overlapping, and the electrostatic protection unit 30 and the first gap G are at least partially non-overlapping. By reducing the overlap between the shift register 11 and the electrostatic protection unit 30 and the first gap G, the embodiments of the present disclosure can reduce the overlap between the shift register 11 and the electrostatic protection unit 30 and the original wiring of the pixel driving circuit 40 in the first area AA1, thereby reducing the influence on the pixel driving circuit 40.
[0115] Please refer to Figure 10 and Figure 11 , in an optional implementation of the present disclosure, the pixel driving circuits 40 arranged in an array include a plurality of rows H of pixel driving circuits 40 arranged along the first direction D1, and a plurality of columns L of pixel driving circuits arranged along the second direction D2. There is a first gap G between adjacent columns L of pixel driving circuits. The second direction D2 intersects the first direction D1; along the first direction D1, the shift register 11 overlaps with the first gap G, and / or, the electrostatic protection unit 30 overlaps with the first gap G.
[0116] Specifically, in multiple rows H of pixel driving circuits arranged along the first direction D1, there are included multiple pixel driving circuits 40 arranged along the second direction D2. Between the rows of pixel driving circuits, there are traces extending along the second direction D2, such as data write control signal lines, reset control signal lines, light emission control signal lines, etc. Among them, the data write control signal line is configured to provide a control signal to the pixel driving circuit 40 to control the writing of data signals; the reset control signal line is configured to provide a control signal to the pixel driving circuit 40 to control the reset of the pixel driving circuit; the light emission control signal line is configured to provide a light emission control signal to the pixel driving circuit to control the pixel driving circuit to generate a driving signal for driving a light-emitting element to emit light.
[0117] When the shift register 11 or the electrostatic protection unit 30 is arranged in the interval between adjacent pixel driving circuits 40 along the first direction D1, the shift register 11 or the electrostatic protection unit 30 will overlap with the original traces between the pixel driving circuits 40, thus generating a coupling capacitance. Therefore, in the embodiment of the present disclosure, the shift register 11 or the electrostatic protection unit 30 is arranged in the first interval G between the columns of pixel driving circuits. In this way, it is beneficial to reduce the overlap between the shift register 11 or the electrostatic protection unit 30 and the original traces between the rows of pixel driving circuits, thereby reducing the coupling capacitance. An optional embodiment provided by the present disclosure is that along the first direction D1, the shift register 11 overlaps with the first interval G; another optional embodiment provided by the present disclosure is that along the first direction D1, the electrostatic protection unit 30 overlaps with the first interval G.
[0118] Considering that at least part of the first interval G will be provided with signal lines connected to the pixel driving circuit 40, such as data lines, power supply signal lines, etc. When the shift register 11 or the electrostatic protection unit 30 is arranged in the first interval G, the aforementioned data line or power supply signal line may not be arranged in the interval G where the shift register 11 and the electrostatic protection unit 30 are arranged, and at least one of these data lines or power supply signal lines is arranged in other first intervals, or the shift register 11 and the electrostatic protection unit 30 are arranged in the first interval where no data line or power supply signal line was originally arranged. In this way, it is beneficial to avoid the influence of the introduction of the shift register 11 or the electrostatic protection unit 30 on the layout of the aforementioned signal lines.
[0119] Figure 9 and Figure 10 The embodiment shows a scheme in which the electrostatic protection unit 30 and the first signal line 20 connected thereto are respectively arranged in different regions, that is, there is a pixel driving circuit 40 between the electrostatic protection unit 30 and the first signal line connected thereto. However, the present disclosure is not limited thereto. In some other embodiments of the present disclosure, the electrostatic protection unit 30 and the first signal line connected thereto may also be arranged in the same interval. For example, please refer toFigure 22 。
[0120] Figure 22 Shown is another schematic plan view of the display panel provided by the embodiments of the present disclosure. Please refer to Figure 22 , in an alternative embodiment of the present disclosure, along the first direction D1, the shift register 11 and the electrostatic protection unit 30 are located in the same first interval G. In this way, the near connection between the electrostatic protection unit 30 and the first signal line 20 connected thereto is realized. At this time, no signal line extending along the first direction D1 connected to the pixel driving circuit needs to be provided in the first interval G, thereby avoiding the overlapping of the wirings in the other first intervals between the shift register 11 and the electrostatic protection unit 30 and the columns of the pixel driving circuit 40, and reducing the coupling capacitance.
[0121] Figure 23 Shown is another schematic plan view of the display panel provided by the embodiments of the present disclosure. Please refer to Figure 23 , in an alternative embodiment of the present disclosure, the display panel 100 includes a plurality of circuit units 01 arranged in an array. The circuit unit 01 includes at least two pixel driving circuits 40 arranged along the second direction D2; in this embodiment, an example is given in which one circuit unit 01 includes three pixel driving circuits 40, but the present disclosure is not limited thereto. The light-emitting elements connected to the three pixel driving circuits 40 in one circuit unit 01 can be respectively embodied as three different colors, for example, a red light-emitting element, a green light-emitting element, and a blue light-emitting element. Along the second direction D2, the width e2 of the electrostatic protection unit 30 is less than the width cc1 of the circuit unit 01, and at least a part of the electrostatic protection unit 30 is located between adjacent circuit units 01; along the first direction D1, at least a part of the electrostatic protection unit 30 is located between adjacent shift registers 11.
[0122] When the width of the electrostatic protection unit 30 along the second direction D2 is less than the width of a single circuit unit 01 along the second direction D2, the interval width between adjacent circuit units 01 along the second direction D2 is usually greater than or equal to the width of the electrostatic protection unit along the second direction D2. Therefore, the electrostatic protection unit 30 can be arranged in the area between adjacent circuit units 01 along the second direction D2. At this time, the shift register 11 corresponding to the electrostatic protection unit 30 can be arranged in the same interval as the electrostatic protection unit 30, that is, in the interval between two adjacent columns of circuit units 01. In this way, the near connection between the electrostatic protection unit 30 and the corresponding first signal line 20 can be realized, and the wiring is simplified. Of course, in some other embodiments of the present disclosure, the electrostatic protection unit 30 and the corresponding shift register 11 can also be arranged in different intervals formed by circuit units 01 in different columns, and the present disclosure does not specifically limit this.
[0123] Figure 24The figure shows another schematic plan view of a display panel provided by an embodiment of the present disclosure. In an alternative embodiment of the present disclosure, the display panel 100 includes a plurality of scan lines 50, which are electrically connected to the shift register 11 and are used to receive the scan signals transmitted by the shift register 11. The scan circuit 10 includes N-stage shift registers 11, where N≥3. The scan line 50 connected to the Nth-stage shift register 11 is also electrically connected to the electrostatic protection unit 30. Among them, the Nth-stage shift register 11 is also electrically connected to the detection signal line X.
[0124] During the production process of the display panel 100, the uncut display panel 100 is detected before being cut to form the display panel. The Nth (last stage) shift register 11 in the scan circuit 10 is connected to the detection pad VT-PAD through the detection signal line X, so as to detect whether the display panel 100 can complete the scanning and lighting of the pixels from the first row to the last row. After the detection is completed, the aforementioned detection pad VT-PAD will be cut off and not retained in the final product. However, after the cutting is completed, a part of the line segment in the detection signal line X will be retained in the final product and is located at the cutting edge. Figure 24 In the figure, the cut-off detection pad VT-PAD and the detection signal line are schematically shown in dotted lines, and the dotted line part is not included in the actual display panel. Therefore, this part of the line segment in the detection signal line X is more vulnerable to static electricity. In addition to the aforementioned detection signal line X, the signal line connected to the output end of the Nth (last stage) shift register also includes the scan line 50. When static electricity enters the display panel through the detection signal line X, it will not only affect the last stage shift register 11, but also affect the signal on the scan line 50 connected to the last stage shift register 11. Therefore, in this embodiment, it is set that the scan line 50 connected to the Nth-stage shift register 11 is also electrically connected to the electrostatic protection unit 30, which is beneficial to reducing or avoiding the influence of the static electricity transmitted by the detection signal line X on the scan line and improving the anti-static ability of the display panel. Optionally, the connection position of the electrostatic protection unit 30 and the scan line 50 can be located on the scan line 50 or on the detection signal line X. The present disclosure does not specifically limit this, as long as the connection position can ensure that the static electricity can be conducted by the electrostatic protection unit 30 and not transmitted to the scan line.
[0125] Based on the same inventive concept, the present disclosure also provides a display device. Figure 25 The figure shows a schematic structural view of a display device provided by an embodiment of the present disclosure. Figure 26 The figure shows another schematic structural view of a display device provided by an embodiment of the present disclosure. Please refer to Figure 25 and Figure 26 , the display device 200 includes the display panel 100 in any of the above embodiments. Figure 26The embodiment shown is described by taking a spliced display device composed of a plurality of display panels 100 as an example. Since the display panel provided by the embodiment of the present disclosure can achieve a display effect with an extremely narrow frame or no frame, the display panels 100 provided by the embodiment of the present disclosure can be spliced to form a large-sized display device, which is beneficial to weakening the splicing seam and improving the display effect of the large-sized spliced display device.
[0126] The display device 200 provided in the embodiment of the present disclosure may be any electronic device with a display function, such as a touch screen, a mobile phone, a tablet computer, a laptop computer, an e-book, or a television. The display device 200 provided in the embodiment of the present disclosure has the beneficial effects of the display panel 100 provided in the embodiment of the present disclosure. For details, reference may be made to the specific description of the display panel 100 in the above embodiments, which will not be repeated in this embodiment.
[0127] Understandably, Figure 25 Only a rectangular structure is used as an example to illustrate a shape of the display device 200. In some other embodiments of the present disclosure, Figure 25 The corresponding display device 200 may also be embodied in a circular shape, an elliptical shape, or any other feasible shape, which is not specifically limited in the present disclosure. Figure 26 The example in which the display device 200 includes four display panels 100 is used for description, but the number of the display panels 100 actually included in the display device 200 is not limited.
[0128] It can be seen from the above embodiments that the display panel and display device provided by the present disclosure achieve at least the following beneficial effects:
[0129] The present disclosure provides a display panel and a display device, wherein in the display panel, a scanning circuit is arranged in a display area, and a signal is provided to a shift register through a first signal line located in the display area. At the same time, an electrostatic protection unit is also arranged in the display area, and the scanning circuit and the electrostatic protection unit will no longer occupy the non-display area space of the display panel. In this way, a non-display area may not be arranged in the display panel, or only a non-display area with a smaller width may be arranged, which is conducive to realizing a borderless or extremely narrow border design of the display panel, which is conducive to improving the screen-to-body ratio of the display product, and further to improving the visual effect. In addition, the present disclosure introduces an electrostatic protection unit in the display area, and electrically connects the first signal line to the electrostatic protection unit. When the display panel is subjected to static electricity, the static electricity acting on the first signal line can be conducted out through the electrostatic protection unit, so as to avoid affecting the normal operation of the scanning circuit, thereby avoiding affecting the normal display of the display panel, and thus helping to improve the overall anti-static performance of the display product.
[0130] It should be noted that, in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.
[0131] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1. A display panel, characterized in that: The device comprises a scanning circuit and a first signal line connected to the scanning circuit and providing a signal to the scanning circuit, wherein the scanning circuit and the first signal line are both located in a display area, and the scanning circuit comprises a plurality of shift registers arranged and cascaded along a first direction; The display panel further includes an electrostatic protection unit disposed in the display area, and the electrostatic protection unit is electrically connected to the first signal line.
2. The display panel according to claim 1, characterized in that: The first signal line extends along the first direction.
3. The display panel according to claim 1, characterized in that: At least part of the electrostatic protection unit is located on at least one side of the shift register along a second direction, and the second direction intersects with the first direction and is parallel to the light emitting surface of the display panel.
4. The display panel according to claim 1, characterized in that: At least part of the electrostatic protection unit is located on at least one side of the shift register along the first direction.
5. The display panel according to claim 4, characterized in that: The cascaded shift register includes a first shift register and a second shift register. Along the first direction, the first shift register is located between the electrostatic protection unit and the second shift register, and the first shift register is adjacent to the electrostatic protection unit; along the first direction, the width of the first shift register is smaller than the width of the second shift register.
6. The display panel according to claim 5, characterized in that: The shift register includes a plurality of transistors, and a width-to-length ratio of at least some of the transistors in the first shift register is smaller than a width-to-length ratio of at least some of the transistors in the second shift register.
7. The display panel according to claim 1, characterized in that: At least part of the electrostatic protection unit is located on at least one side of the shift register along the second direction, and at least part of the electrostatic protection unit is located on at least one side of the shift register along the first direction, wherein the second direction intersects with the first direction and is parallel to the light emitting surface of the display panel.
8. The display panel according to claim 7, characterized in that: The electrostatic protection unit located on at least one side of the shift register along the first direction is a first electrostatic protection unit, and the electrostatic protection unit located on at least one side of the shift register along the second direction is a second electrostatic protection unit, and the width of the first electrostatic protection unit along the first direction is not equal to the width of the second electrostatic protection unit along the first direction.
9. The display panel according to claim 7, characterized in that: The electrostatic protection unit located on at least one side of the shift register along the first direction is a first electrostatic protection unit, and the electrostatic protection unit located on at least one side of the shift register along the second direction is a second electrostatic protection unit, and the width of the second electrostatic protection unit along the second direction is not equal to the width of the first electrostatic protection unit along the second direction.
10. The display panel according to claim 1, characterized in that: The shift register includes a first module and a second module arranged along a second direction, the first module and the second module are electrically connected via at least a first wiring, and at least part of the electrostatic protection unit is located between the first module and the second module; wherein the second direction intersects with the first direction and is parallel to the light emitting surface of the display panel.
11. The display panel according to claim 1, characterized in that: The first signal line includes a first sub-signal line and a second sub-signal line, and the electrostatic protection unit includes a first electrostatic protection unit and a second electrostatic protection unit, the first electrostatic protection unit is electrically connected to the first sub-signal line, and the second electrostatic protection unit is electrically connected to the second sub-signal line, and along the second direction, the first electrostatic protection unit and the second electrostatic protection unit are located on the same side of the first sub-signal line and the second sub-signal line; along the second direction, the distance between the first electrostatic protection unit and the first sub-signal line is less than or equal to the distance between the second electrostatic protection unit and the first sub-signal line.
12. The display panel according to claim 1, characterized in that: The first signal line includes a first sub-signal line and a second sub-signal line, along a second direction, the first sub-signal line is located at a first side of the shift register, the second sub-signal line is located at a second side of the shift register, and the second direction intersects the first direction; The electrostatic protection unit connected to the first sub-signal line is located at the first side of the shift register, and the electrostatic protection unit connected to the second sub-signal line is located at the second side of the shift register.
13. The display panel according to claim 1, characterized in that: At least two electrostatic protection units are located on the same side of the same first signal line along a second direction, and the second direction intersects the first direction; at least two electrostatic protection units located on the same side of the same first signal line along the second direction are respectively connected to different first signal lines.
14. The display panel according to claim 1, characterized in that: At least part of the electrostatic protection unit includes an electrically connected first unit and a second unit, wherein the first unit and the second unit are respectively located on both sides of the first signal line along a second direction; wherein the second direction intersects the first direction and is parallel to the light emitting surface of the display panel.
15. The display panel according to claim 1, characterized in that: The first signal line includes a first type of signal line and a second type of signal line, the first type of signal line receives a fixed potential signal, the second type of signal line receives a non-fixed potential signal, the number of the electrostatic protection units connected to at least one of the first type of signal lines is n1, and the number of the electrostatic protection units connected to at least one of the second type of signal lines is n2, wherein n1<n2.
16. The display panel according to claim 15, characterized in that: n1=0。 17. The display panel according to claim 1, characterized in that: The display area includes a first area and a second area located at least on one side of the first area along a second direction, wherein the second direction intersects the first direction and is parallel to a light emitting surface of the display panel; the display panel further includes an array-arranged pixel driving circuit and a light emitting element connected to the pixel driving circuit, wherein the pixel driving circuit is located in the first area, and the light emitting element is located in the first area and the second area; The scanning circuit and the electrostatic protection unit are located in the second area.
18. The display panel according to claim 17, characterized in that: In the second region, along the second direction, the electrostatic protection unit is located at a side of the shift register away from the first region; and / or, along the first direction, the electrostatic protection unit is located at at least one side of the shift register.
19. The display panel according to claim 17, characterized in that: The first signal line includes a first sub-signal line and a second sub-signal line, in the second area, along the second direction, the first sub-signal line is located between the second sub-signal line and the edge of the display panel, and the first sub-signal line receives a non-fixed potential signal; The number of the electrostatic protection units connected to one of the first signal sub-lines is n01, and the number of the electrostatic protection units connected to one of the second signal sub-lines is n02, where n01>n02.
20. The display panel according to claim 19, characterized in that: The second sub-signal line includes a fixed potential signal line and a non-fixed potential signal line, and the number of the electrostatic protection units connected to one of the fixed potential signal lines is less than the number of the electrostatic protection units connected to one of the non-fixed potential signal lines.
21. The display panel according to claim 19, characterized in that: The first sub-signal line is a start trigger signal line, and the start trigger signal line is configured to transmit a control signal to a shift register located at the first stage; the second sub-signal line is at least one of a first voltage signal line, a second voltage signal line, a first clock signal line, a second clock signal line and a control signal line, wherein the first voltage signal line and the second voltage signal line are configured to transmit a power supply voltage signal to the shift register, the first clock signal line and the second clock signal line are configured to transmit a clock signal to the shift register, and the control signal line is used to transmit a ramp signal to the shift register.
22. The display panel according to claim 19, characterized in that: The electrostatic protection unit connected to the first sub-signal line is located at a side of the shift register away from the first region, and the electrostatic protection unit connected to at least one second sub-signal line is located at at least one side of the shift register along the first direction.
23. The display panel according to claim 19, characterized in that: Along the second direction, the electrostatic protection unit connected to the first sub-signal line and the electrostatic protection unit connected to the second sub-signal line are both located on the side of the shift register away from the first region, and along the first direction, the electrostatic protection unit connected to the second sub-signal line is located between the electrostatic protection units connected to the first sub-signal line.
24. The display panel according to claim 19, characterized in that: The scanning circuit includes N-stage shift registers, N≥3; the display panel includes a first edge and a second edge arranged opposite to each other along a first direction, the first-stage shift register is adjacent to the first edge, and the N-stage shift register is adjacent to the second edge; The electrostatic protection unit connected to the first sub-signal line includes a first electrostatic protection unit and a second electrostatic protection unit, and along the first direction, the distance between the first electrostatic protection unit and the first edge is smaller than the distance between the second-stage shift register and the first edge; The distance between the second electrostatic protection unit and the second edge is smaller than the distance between the shift register of the N-1th stage and the second edge.
25. The display panel according to claim 24, characterized in that: Along the first direction or the second direction, the first electrostatic protection unit is adjacent to the shift register of the first stage or the second stage, and the second electrostatic protection unit is adjacent to the shift register of the Nth stage or the N-1th stage.
26. The display panel according to claim 1, characterized in that: The display area includes a first area and a second area located at least on one side of the first area along a second direction, wherein the second direction intersects the first direction and is parallel to a light emitting surface of the display panel; the display panel further includes an array-arranged pixel driving circuit and a light emitting element connected to the pixel driving circuit, wherein the pixel driving circuit is located in the first area, and the light emitting element is located in the first area and the second area; The scanning circuit and the electrostatic protection unit are located in the first area.
27. The display panel according to claim 26, characterized in that: The pixel driving circuits arranged in an array include a plurality of pixel driving circuit rows arranged along the first direction, and a plurality of pixel driving circuit columns arranged along a second direction, with a first interval between adjacent pixel driving circuit columns, and the second direction intersects the first direction; The shift register and the electrostatic protection unit are located between different pixel driving circuit rows, and along the first direction, the shift register and the first interval at least partially do not overlap, and / or the electrostatic protection unit and the first interval at least partially do not overlap.
28. The display panel according to claim 26, characterized in that: The pixel driving circuits arranged in an array include a plurality of pixel driving circuit rows arranged along the first direction, and a plurality of pixel driving circuit columns arranged along a second direction, with a first interval between adjacent pixel driving circuit columns, and the second direction intersects the first direction; Along the first direction, the shift register overlaps with the first interval, and / or the electrostatic protection unit overlaps with the first interval.
29. The display panel according to claim 28, characterized in that: Along the first direction, the shift register and the electrostatic protection unit are located in the same first interval.
30. The display panel according to claim 26, characterized in that: The display panel includes a plurality of circuit units arranged in an array, and the circuit unit includes at least two pixel driving circuits arranged along the second direction; Along the second direction, the width of the electrostatic protection unit is smaller than the width of the circuit unit, and at least part of the electrostatic protection unit is located between adjacent circuit units; Along the first direction, at least part of the electrostatic protection units are located between adjacent shift registers.
31. The display panel according to claim 1, characterized in that: The display panel comprises a plurality of scan lines, wherein the scan lines are electrically connected to the shift register and are used to receive scan signals transmitted by the shift register; The scanning circuit includes N-stage shift registers, N≥3, and the scanning line connected to the N-th stage shift register is also electrically connected to the electrostatic protection unit, wherein the N-th stage shift register is also electrically connected to the detection signal line.
32. A display device, characterized in that: Comprising the display panel described in any one of claims 1 to 31.