Display panel and display apparatus
By setting the data signal line and the electrical connection member on the same side in the OLED display panel, the parasitic capacitance problem caused by the data signal line is solved, and the stability and display effect of the pixel driving circuit are improved.
Patent Information
- Application Number
- PCT/CN2024/078589
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-08
- Filing Date
- 2024-02-26
- Publication Date
- 2025-08-14
AI Technical Summary
In the existing OLED display panel, the data signal line is located on both sides of the sub-pixel unit, causing the parasitic capacitance to increase, affecting the data signal transmission, and causing display abnormalities.
The first data signal line, the second data signal line and the corresponding electrical connection member are arranged on the same side of the repeating unit to reduce the connection distance of the data signal line, avoid the electrical connection member spanning the pixel driving circuit, and reduce parasitic capacitance.
The stability of the pixel driving circuit is improved and the display effect of the display panel is improved.
Smart Images

Figure CN2024078589_14082025_PF_FP_ABST
Abstract
Description
Display panel and display device Technical Field
[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art
[0002] OLED (Organic Light-Emitting Diode) display technology is a new display technology that has gradually attracted people's attention for its unique advantages such as low power consumption, high saturation, fast response time and wide viewing angle, and occupies a certain position in the field of panel display technology.
[0003] In related technologies, the film layer structures of the sub-pixel units of OLED display panels are all the same, and the data lines are usually arranged on both sides of the sub-pixel units. Some sub-pixel units in the same column require an electrical connection line that spans the sub-pixel units to be electrically connected to the corresponding data lines. The electrical connection line overlaps with the film layers in the sub-pixel units, which makes the parasitic capacitance of the data signal line larger, thereby affecting the transmission of the data signal and causing abnormal display of the display panel. Summary of the Invention
[0004] The present application provides a display panel and a display device to improve the technical problem of abnormal display of existing display panels.
[0005] To solve the above problem, the technical solution provided by this application is as follows:
[0006] The present application provides a display panel, comprising a plurality of repeating units and a first data signal line and a second data signal line provided on one side of the repeating units, wherein the repeating units include at least one first sub-pixel unit and at least one second sub-pixel unit, wherein the first sub-pixel unit and the second sub-pixel unit each include a pixel driving circuit and a light-emitting device connected to the pixel driving circuit;
[0007] In which, the display panel also includes a first electrically connecting component and a second electrically connecting component, the pixel driving circuit of the first sub-pixel unit is electrically connected to the first data signal line through the first electrically connecting component, and the pixel driving circuit of the second sub-pixel unit is electrically connected to the second data signal line through the second electrically connecting component, and the first electrically connecting component, the second electrically connecting component, the first data signal line and the second data signal line are all arranged on the same side of the repeating unit.
[0008] The present application also provides a display device, comprising a display panel, the display panel comprising a plurality of repeating units and a first data signal line and a second data signal line provided on one side of the repeating unit, the repeating unit comprising at least one first sub-pixel unit and at least one second sub-pixel unit, the first sub-pixel unit and the second sub-pixel unit each comprising a pixel driving circuit and a light-emitting device connected to the pixel driving circuit;
[0009] In which, the display panel also includes a first electrically connecting component and a second electrically connecting component, the pixel driving circuit of the first sub-pixel unit is electrically connected to the first data signal line through the first electrically connecting component, and the pixel driving circuit of the second sub-pixel unit is electrically connected to the second data signal line through the second electrically connecting component, and the first electrically connecting component, the second electrically connecting component, the first data signal line and the second data signal line are all arranged on the same side of the repeating unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG1 is a connection diagram of different sub-pixel units and different data lines of a display panel in the prior art;
[0011] FIG2 is a connection diagram of different sub-pixel units and different data lines of the display panel of the present application;
[0012] FIG3 is a simplified structural diagram of the display panel of the present application;
[0013] FIG4 is an equivalent circuit diagram of a pixel driving circuit in a display panel of the present application;
[0014] FIG5 is a schematic diagram of a film layer in a display panel of the present application;
[0015] FIG6 is a film layer diagram of the first gate layer in the display panel of the present application;
[0016] FIG7 is a film diagram of the first active layer in the display panel of the present application;
[0017] FIG8 is a diagram showing a stack of film layers of a first gate layer and a first active layer in a display panel of the present application;
[0018] FIG9 is a film layer diagram of the second gate layer in the display panel of the present application;
[0019] FIG10 is a diagram showing a stack of first and second gate layers in a display panel of the present application;
[0020] FIG11 is a film diagram of the second active layer in the display panel of the present application;
[0021] FIG12 is a film layer diagram of the third gate layer in the display panel of the present application;
[0022] FIG13 is a film layer diagram of the first active layer, the second active layer, the second gate layer and the third gate layer in the display panel of the present application;
[0023] FIG14 is a film layer diagram of the first source and drain layer of the first sub-pixel unit in the display panel of the present application;
[0024] FIG15 is a film layer diagram of the first gate layer, the third gate layer, the first active layer, the second active layer and the first source and drain layer of the first sub-pixel unit in the display panel of the present application;
[0025] FIG16 is a film layer diagram of the second active layer, the second gate layer, and the first source and drain layer of the first sub-pixel unit in the display panel of the present application;
[0026] FIG17 is a film layer diagram of the first gate layer, the second gate layer, the third gate layer, the first active layer, the second active layer and the first source and drain layer of the first sub-pixel unit in the display panel of the present application;
[0027] FIG18 is a first film layer diagram of the second source and drain electrode layer in the display panel of the present application;
[0028] FIG19 is a diagram showing the superposition of the first active layer, the second active layer, the third gate layer, the first source-drain electrode layer, and the second source-drain electrode layer of the first sub-pixel unit in the display panel of the present application;
[0029] FIG20 is a diagram showing the film layer stacking of the pixel driving circuit of the present application;
[0030] FIG21 is a film diagram of the first source and drain layer of the second sub-pixel unit in the display panel of the present application;
[0031] FIG22 is a diagram showing the superposition of the first active layer, the second active layer, the third gate layer, the first source-drain electrode layer, and the second source-drain electrode layer of the second sub-pixel unit in the display panel of the present application;
[0032] FIG23 is a second film layer diagram of the second source and drain electrode layer in the display panel of the present application;
[0033] FIG24 is a film diagram of the third source and drain electrode layer in the display panel of the present application;
[0034] FIG25 is a diagram showing the superimposed film layers of the second source-drain electrode layer and the third source-drain electrode layer in the display panel of the present application;
[0035] FIG26 is a fourth film layer stacking diagram of the pixel driving circuit of the present application;
[0036] FIG27 is a film layer diagram of the third source and drain electrode layer in multiple sub-pixel units in the display panel of the present application;
[0037] FIG28 is a diagram showing the connection relationship between the first reset signal line, the second reset signal line, the third reset signal line, and the fourth reset signal line in the display panel of the present application;
[0038] FIG29 is a diagram showing the superposition of the film layers of the third source and drain electrode layer, the data signal line, and the anode of the light-emitting device in the display panel of the present application. Modes for Carrying Out the Invention
[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.
[0040] In the prior art, the structures of the pixel driving circuits in different sub-pixel units are all the same, that is, the data signal input terminals of the pixel driving circuits are all located on the same side. However, in the current display panel, the data signal lines are all located on both sides of the sub-pixel units. For example, in the structure of FIG1 , the first data signal line Data1 is set on the left side of the sub-pixel unit P, and the second data signal line Data2 is set on the right side of the sub-pixel unit P. Then, the data signal input terminals of the sub-pixel units P in the first row are adjacent to the first data signal line Data1, while the data signal input terminals of the sub-pixel units P in the second row are spaced apart from the second data signal line Data2 by the width of one sub-pixel unit P. That is, a connecting line spanning the sub-pixel units P is required to electrically connect the second data signal line Data2 to the data signal input terminals of the sub-pixel units P in the second row. This connecting line overlaps with multiple film layer structures in the sub-pixel unit P, increasing the coupling capacitance between the second data signal line Data2 and the corresponding film layer, thereby affecting the transmission of the data signal of the second data signal line Data2, resulting in abnormal display of the display panel. Based on the above technical problems, the present application proposes a display panel to solve the above technical problems.
[0041] Referring to Figures 2 to 28, the present application provides a display panel 100. The display panel 100 may include a display portion 200 and a gate driving circuit 300 located on one side of the display portion 200. The gate driving circuit 300 is used to input a control signal to the display portion 200.
[0042] In this embodiment, referring to FIG. 3 , the display portion 200 includes a plurality of sub-pixel rows 210 , each sub-pixel row 210 includes a plurality of sub-pixel units 211 , each sub-pixel unit 211 is provided with a light-emitting device 211 b and a pixel driving circuit 211 a connected to the light-emitting device 211 b , and the gate driving circuit 300 is used to input a gate control signal to the transistor in the pixel driving circuit 211 a .
[0043] Please refer to Figure 2. The multiple sub-pixel units 211 may include multiple repeating units 500. The repeating unit 500 includes at least one first sub-pixel unit 211c and at least one second sub-pixel unit 211d. The first sub-pixel unit 211c and the second sub-pixel unit 211d both include a pixel driving circuit 211a. The following embodiments are described by taking an example in which only the first sub-pixel unit 211c and the second sub-pixel unit 211d are provided in a repeating unit 500.
[0044] In this embodiment, the display panel 100 also includes a first data signal line Data1 and a second data signal line Data2, as well as a first electrical connection component 610 and a second electrical connection component 620, which are arranged on one side of the repeating unit 500. The pixel driving circuit 211a of the first sub-pixel unit 211c is electrically connected to the first data signal line Data1 through the first electrical connection component 610, and the pixel driving circuit 211a of the second sub-pixel unit 211d is electrically connected to the second data signal line Data2 through the second electrical connection component 620.
[0045] In this embodiment, the first electrical connection member 610 , the second electrical connection member 620 , the first data signal line Data1 , and the second data signal line Data2 are all disposed on the same side of the repeating unit 500 .
[0046] In the present application, by arranging the first data signal line Data1 and the first electrical connection component 610 connected to the first sub-pixel unit 211c in the repeating unit 500 and the second data signal line Data2 and the second electrical connection component 620 connected to the second sub-pixel unit 211d on the same side of the repeating unit 500, the connection distance between the data signal line and the input end of the data signal in the sub-pixel unit 211 is reduced, and the first electrical connection component 610 or the second electrical connection component 620 is avoided from crossing the corresponding pixel driving circuit 211a, thereby reducing the parasitic capacitance on the data signal line, improving the stability of the pixel driving circuit 211a, and improving the display image of the display panel 100.
[0047] It should be noted that the structure of the pixel driving circuit 211a in different sub-pixel units 211 of the present application can be the same, the only difference is that different sub-pixel units 211 are provided with different electrical connection components, for example, the first electrical connection component 610 in the first sub-pixel unit 211c and the second electrical connection component 620 in the second sub-pixel unit 211d are provided at different positions within the corresponding sub-pixel unit 211.
[0048] It should be noted that the light-emitting device 211b of the present application can be an organic light-emitting diode, Mini LED, Micro LED, a regular-sized LED or other light-emitting source.
[0049] The technical solution of this application is now described in conjunction with specific embodiments.
[0050] Referring to Figure 3 , the display panel 100 includes a display area AA and a non-display area NA disposed adjacent to the display area AA. The display area AA includes a display portion 200. Optionally, the non-display area NA surrounds the display area AA, enclosing the display area AA. The display area AA is the region within the display panel 100 used for display functions, and includes a plurality of sub-pixel units 211 therein to implement these functions. The non-display area NA may be a border region of the display panel 100, and may include functional components that assist the sub-pixel units 211 within the display area AA in performing display functions.
[0051] Referring to Figure 3 , the lower side of the display area AA is provided with a bonding terminal 400. The bonding terminal 400 can be connected to an external circuit and transmits signals input from the external circuit to the data traces, thereby driving the display panel 100 to display an image. For example, the bonding terminal 400 can be bonded to a chip or a chip-on-film to provide power and drive signals to the display panel 100.
[0052] In this embodiment, the gate driving circuit 300 is arranged in the non-display area NA, and the gate driving circuit 300 can be arranged on both sides of the display area AA; the gate driving circuit 300 may include a plurality of cascaded gate driving units, and the plurality of gate driving units may be arranged along the first direction X. The structure of the gate driving unit is not specifically limited in this application.
[0053] In this embodiment, a plurality of light-emitting devices 211b and a pixel driving circuit 211a for driving the light-emitting devices 211b may be arranged in an array within the display area AA. The pixel driving circuit 211a may be a 7T1C, 7T2C, 8T2C, 8T3C, 8T4C, or other pixel driving circuit 211a. In the following embodiments, the 8T3C pixel driving circuit 211a is used as an example for description. Since the structures of the pixel driving circuits 211a in different sub-pixel units 211 are the same, the structure of the pixel driving circuit 211a of the first sub-pixel unit 211c is first described below.
[0054] Referring to Figure 4, the pixel driving circuit 211a may include a switching transistor T2, a driving transistor T1, a compensation transistor T3, a first reset transistor T4, a second reset transistor T7, a third reset transistor T8, a first light-emitting transistor T5, a second light-emitting transistor T6, a boost capacitor Cboost and a storage capacitor Cst, the storage capacitor Cst includes a first plate Cst1 and a second plate Cst2, and the boost capacitor Cboost includes a third plate and a fourth plate.
[0055] 4 , a first electrode of the switching transistor T2 is connected to the first data signal line Data1, a second electrode of the switching transistor T2 is connected to the first node A, and a switching gate T2G of the switching transistor T2 is connected to the second control signal line Pscan1; a first electrode of the driving transistor T1 is connected to the first node A, a second electrode of the driving transistor T1 is connected to the second node B, and a driving gate T1G of the driving transistor T1 is connected to the third node Q; a first electrode of the compensation transistor T3 is connected to the third node Q, a second electrode of the compensation transistor T3 is connected to the second node B, and a compensation gate T3G of the compensation transistor T3 is connected to the first control signal line Nscan1; a first electrode of the first reset transistor T4 is connected to the first reset signal line Vi1, a second electrode of the first reset transistor T4 is connected to the third node Q, and a first reset gate T4G of the first reset transistor T4 is connected to the third control signal line Nscan2; a first electrode of the second reset transistor T7 is connected to the second reset signal line Vi2, a second electrode of the second reset transistor T7 is connected to the anode of the light emitting device 211 b, and a second reset gate T4G of the second reset transistor T7 is connected to the third control signal line Nscan2. The bit gate T7G is connected to the fourth control signal line Pscan2; the first electrode of the third reset transistor T8 is connected to the third reset signal line Vi3, the second electrode of the third reset transistor T8 is connected to the first node A, and the third reset gate T8G of the third reset transistor T8 is connected to the fourth control signal line Pscan2; the first electrode of the first light-emitting transistor T5 is connected to the first high potential line VDD1, the second electrode of the first light-emitting transistor T5 is connected to the first node A, and the first light-emitting gate T5G of the first light-emitting transistor T5 is connected to the light-emitting signal line EM; the first electrode of the second light-emitting transistor T6 is connected to the second node B, the second electrode of the second light-emitting transistor T6 is connected to the anode of the light-emitting device 211b, and the second light-emitting gate T6G of the second light-emitting transistor T6 is connected to the light-emitting signal line EM; the third plate of the boost capacitor Cboost is connected to the third node Q, and the fourth plate of the boost capacitor Cboost is connected to the second control signal line Pscan1; the first plate Cst1 of the storage capacitor Cst is connected to the third node Q, and the second plate Cst2 of the storage capacitor Cst is connected to the first high potential line VDD1.
[0056] It should be noted that the switch transistors T2 in different sub-pixel units 211 are connected to different data signal lines, and this application only takes one of them as an example for description.
[0057] In this embodiment, the first high potential line VDD1 is used to provide a constant high voltage to the pixel driving circuit 211 a , and the first low potential line VSS is used to provide a constant low voltage to the pixel driving circuit 211 a .
[0058] In this embodiment, the switching transistor T2, the driving transistor T1, the second reset transistor T7, the third reset transistor T8, the first light-emitting transistor T5, and the second light-emitting transistor T6 may be one of P-type transistors or N-type transistors, and the compensation transistor T3 and the first reset transistor T4 may be the other of P-type transistors or N-type transistors; this application is described by taking the switching transistor T2, the driving transistor T1, the second reset transistor T7, the third reset transistor T8, the first light-emitting transistor T5, and the second light-emitting transistor T6 as P-type transistors, and the compensation transistor T3 and the first reset transistor T4 as N-type transistors as an example.
[0059] In this embodiment, the capacitance of the boost capacitor Cboost is smaller than the capacitance of the storage capacitor Cst. In this embodiment, the storage capacitor Cst is primarily used to maintain the stability of the potential of the third node Q. Therefore, the capacitance of the storage capacitor Cst is relatively large. For example, the capacitance of the storage capacitor Cst may range from 45fF to 55fF, and the capacitance of the boost capacitor Cboost may range from 5fF to 15fF.
[0060] In this embodiment, the first electrode may be one of the source and the drain, and the second electrode may be the other of the source and the drain.
[0061] In the following embodiments, the angle between the first direction X and the second direction Y is greater than 0 and less than or equal to 90°. For example, the first direction X is the horizontal direction, and the second direction Y is the vertical direction.
[0062] The following describes the film structure of the pixel driving circuit 211 a of the present application with reference to the structure of FIG. 4 .
[0063] Referring to Figure 5 , the display area AA and non-display area NA of the display panel 100 may include a base substrate 110 and an array drive layer 120 disposed on the base substrate 110. Within the display area AA, the display panel 100 may also include a pixel definition layer (not shown) disposed on the array drive layer 120, a light-emitting device layer (not shown) disposed on the same layer as the pixel definition layer, and an encapsulation layer (not shown) disposed on the pixel definition layer. The following primarily describes the film layer structure within the display area AA.
[0064] In this embodiment, the base substrate 110 supports various layers provided on the base substrate 110. When the display panel 100 is a bottom-emitting light-emitting display device or a double-sided light-emitting display device, a transparent base substrate is used. When the display panel 100 is a top-emitting light-emitting display device, a semi-transparent or opaque base substrate as well as a transparent base substrate can be used.
[0065] In this embodiment, the base substrate 110 is used to support the various film layers provided thereon. The base substrate 110 may be made of an insulating material such as glass, quartz, or a polymer resin. The base substrate 110 may be a rigid substrate or a flexible substrate that can be bent, folded, or rolled. Examples of flexible materials for the flexible substrate include, but are not limited to, polyimide (PI).
[0066] In this embodiment, the base substrate 110 may include a first flexible substrate 111, a first barrier layer 112, a second flexible substrate 113, and a second barrier layer 114 that are stacked. The first flexible substrate 111 and the second flexible substrate 113 may be formed of the same material, such as polyimide, and the first barrier layer 112 and the second barrier layer 114 may be formed of an inorganic material, for example, including at least one of SiOx and SiNx.
[0067] In this embodiment, the first flexible substrate 111 is formed by coating a polymeric material on a supporting substrate (not shown) and then curing the polymeric material. The second flexible substrate 113 is formed by coating the same material as the first flexible substrate 111 and curing the material. The second flexible substrate 113 is formed by the same method as the first flexible substrate 111. Each of the first flexible substrate 111 and the second flexible substrate 113 can be formed to have a thickness of about 8 μm to about 12 μm. In addition, when the base substrate 110 is formed of the first flexible substrate 111 and the second flexible substrate 113, small holes, cracks, etc. formed during the manufacture of the first flexible substrate 111 are covered by the second flexible substrate 113, thereby eliminating such defects.
[0068] Referring to FIG5 , the array drive layer 120 may include a plurality of thin film transistors, which may be of an etch-stop type or a back-channel etch type, or may be classified into a bottom-gate thin film transistor, a top-gate thin film transistor, or other structures according to the position of the gate electrode and the active layer, or may be classified into an N-type thin film transistor or a P-type thin film transistor according to the performance of the thin film transistor; wherein the thin film transistor in FIG5 does not represent the structural diagram of any transistor in FIG4 , but is only a schematic diagram of the various film layers of the display panel 100 of the present application.
[0069] 5 , the array driving layer 120 may include a light shielding layer 121 disposed on the base substrate 110, a buffer layer 122 disposed on the light shielding layer 121, a first active layer 123 disposed on the buffer layer 122, a first gate insulating layer 124 disposed on the first active layer 123, a first gate layer 125 disposed on the first gate insulating layer 124, a second gate insulating layer 126 disposed on the first gate layer 125, a second gate layer 127 disposed on the second gate insulating layer 126, a third gate insulating layer 128 disposed on the second gate layer 127, and a second active layer 129 disposed on the third gate insulating layer 128. , a fourth gate insulating layer 130 arranged on the second active layer 129, a third gate layer 131 arranged on the fourth gate insulating layer 130, a first interlayer insulating layer 132 arranged on the third gate layer 131, a first source-drain layer 133 arranged on the first interlayer insulating layer 132, a second interlayer insulating layer 134 arranged on the first source-drain layer 133, a second source-drain layer 135 arranged on the second interlayer insulating layer 134, a third interlayer insulating layer 136 arranged on the second source-drain layer 135, a third source-drain layer 137 arranged on the third interlayer insulating layer 136, and a planarization layer 138 arranged on the third source-drain layer 137.
[0070] 5 , a light shielding layer 121 is provided on the second barrier layer 114 . The light shielding layer 121 is used to block external light from entering the thin film transistor from the bottom. The light shielding layer 121 may be made of a black light shielding material, such as a black light shielding metal or a black organic material.
[0071] Please refer to Figure 5. The buffer layer 122 is arranged on the light-shielding layer 121. The buffer layer 122 is used to isolate the light-shielding layer 121 from the upper metal material. The material of the buffer layer 122 may include a compound composed of nitrogen, silicon and oxygen elements, such as a single-layer silicon oxide film layer, or a silicon oxide-silicon nitride stacked structure.
[0072] Please refer to Figure 5. The first active layer 123 is disposed on the buffer layer 122, and the second active layer 129 can be disposed on the third gate insulating layer 128. The materials of the first active layer 123 and the second active layer 129 can be indium gallium zinc oxide semiconductor, amorphous silicon or low-temperature polycrystalline silicon. For example, in the present application, the material of the first active layer 123 can be low-temperature polycrystalline silicon, and the material of the second active layer 129 can be indium gallium zinc oxide semiconductor.
[0073] Please refer to Figure 5. The first gate insulating layer 124, the second gate insulating layer 126, the third gate insulating layer 128, the fourth gate insulating layer 130, the first interlayer insulating layer 132, the second interlayer insulating layer 134, and the third interlayer insulating layer 136 are respectively arranged on the corresponding metal layers or semiconductor layers, and are separated by different layers of metal layers or semiconductor layers; the material of the first gate insulating layer 124, the second gate insulating layer 126, the first interlayer insulating layer 132, the third gate insulating layer 128, the fourth gate insulating layer 130, the second interlayer insulating layer 134, and the third interlayer insulating layer 136 can be an inorganic substance composed of nitride oxide silicon or an organic material with flatness.
[0074] Please refer to Figure 5. The first gate layer 125, the second gate layer 127 and the third gate layer 131 are respectively arranged on the corresponding insulating layers. The materials of the first gate layer 125, the second gate layer 127 and the third gate layer 131 can be copper, molybdenum or molybdenum-titanium alloy, etc. The material of the three gate layers of this application can be molybdenum.
[0075] Please refer to Figure 5, the first source and drain layer 133 is arranged on the first interlayer insulating layer 132, the second source and drain layer 135 is arranged on the second interlayer insulating layer 134, and the third source and drain layer 137 is arranged on the third interlayer insulating layer 136. The materials of the first source and drain layer 133, the second source and drain layer 135, and the third source and drain layer 137 can be copper, molybdenum, molybdenum-titanium alloy, or titanium-aluminum-titanium three-layer metal, etc. The material of the three-layer source and drain layer of the present application can be titanium-aluminum-titanium.
[0076] 5 , the planarization layer 138 is laid as a whole layer to ensure the flatness of the film layer of the array driving layer 120 . The material of the planarization layer 138 can be an inorganic material composed of nitride oxide and silicon, or an organic material with flatness.
[0077] Referring to Figure 6, the first gate layer 125 includes a light-emitting signal line EM, a first reset signal line Vi1, a third reset signal line Vi3, and a fourth control signal line Pscan2. The light-emitting signal line EM, the first reset signal line Vi1, the third reset signal line Vi3, and the fourth control signal line Pscan2 all extend along the first direction X, and the third reset signal line Vi3, the fourth control signal line Pscan2, the light-emitting signal line EM, and the first reset signal line Vi1 are arranged at intervals along the second direction Y.
[0078] Please refer to Figure 6. The first gate layer 125 also includes a switch gate T2G and a first electrode plate Cst1 of the storage capacitor Cst, which are arranged between the light-emitting signal line EM and the first reset signal line Vi1. The switch gate T2G and the first electrode plate Cst1 are arranged at intervals in the second direction Y, and the first electrode plate Cst1 is arranged close to the light-emitting signal line EM, and the switch gate T2G is arranged away from the light-emitting signal line EM.
[0079] In this embodiment, the light emitting signal line EM can directly serve as the first light emitting gate T5G and the second light emitting gate T6G, and the fourth control signal line Pscan2 can directly serve as the second reset gate T7G and the third reset gate T8G.
[0080] Referring to FIG. 6 , the switch gate T2G and the first electrode plate Cst1 may be in the shape of a rectangle, and the four corners of the first electrode plate Cst1 may be chamfered.
[0081] 7 , the first active layer 123 includes a switch active portion T2A of the switch transistor T2, a drive active portion T1A of the drive transistor T1, a second reset active portion T7A of the second reset transistor T7, a third reset active portion T8A of the third reset transistor T8, a first light emitting active portion T5A of the first light emitting transistor T5, and a second light emitting active portion T6A of the second light emitting transistor T6.
[0082] Please refer to Figure 7. The switch active portion T2A, the driving active portion T1A, the second reset active portion T7A, the first light-emitting active portion T5A, and the second light-emitting active portion T6A are connected to each other, and the third reset active portion T8A is arranged separately from the other active portions. The switch active portion T2A, the second reset active portion T7A, the third reset active portion T8A, the first light-emitting active portion T5A, and the second light-emitting active portion T6A are all long strips and extend along the second direction Y. The driving active portion T1A is in a "X" shape and is arranged between the first light-emitting active portion T5A and the second light-emitting active portion T6A. The first end of the switch active portion T2A, the first end of the driving active portion T1A, and the first end of the first light-emitting active portion T5A are connected to the first connection point P1. The second end of the driving active portion T1A and the first end of the second light-emitting active portion T6A are connected to the second connection point P2. The first end of the second reset active portion T7A and the second end of the second light-emitting active portion T6A are connected to the third connection point P3.
[0083] In this embodiment, the first connection point P1 is the first node A, the second connection point P2 is the second node B, and the third connection point P3 is the point where the anode of the light emitting device 211b is located.
[0084] It should be noted that the patterns of the switch active portion of the first sub-pixel unit 211 c and the switch active portion of the second sub-pixel unit 211 d are the same.
[0085] Please refer to Figure 8. The light-emitting signal line EM and the first light-emitting active portion T5A partially overlap, and the overlapping portion is the channel of the first light-emitting active portion T5A; the light-emitting signal line EM and the second light-emitting active portion T6A partially overlap, and the overlapping portion is the channel of the second light-emitting active portion T6A; the switch gate T2G and the switch active portion T2A partially overlap, and the overlapping portion is the channel of the switch active portion T2A; the fourth control signal line Pscan2 and the second reset active portion T7A partially overlap, and the overlapping portion is the channel of the second reset active portion T7A; the fourth control signal line Pscan2 and the third reset active portion T8A partially overlap, and the overlapping portion is the channel of the third reset active portion T8A; the driving active portion T1A and the first electrode plate Cst1 partially overlap, and the overlapping portion is the channel of the driving active portion T1A. The first electrode plate Cst1 of the present application is multiplexed as the driving gate T1G of the driving transistor T1.
[0086] Please refer to Figures 9 and 10. The second gate layer 127 includes a second plate Cst2 of the storage capacitor Cst arranged along the second direction Y, a first shading unit T3S of the compensation transistor T3, and a second shading unit T4S of the first reset transistor T4. The second plate Cst2, the first shading unit T3S and the second shading unit T4S are located between the light-emitting signal line EM and the first reset signal line Vi1. The first plate Cst1 is located close to the light-emitting signal line EM, the second shading unit T4S is located close to the first reset signal line Vi1, and the first shading unit T3S is located between the second shading unit T4S and the second plate Cst2.
[0087] 9 and 10 , the area of the second electrode plate Cst2 is larger than that of the first electrode plate Cst1 , and the orthographic projection of the first electrode plate Cst1 on the second electrode plate Cst2 is located within the second electrode plate Cst2 . A first through hole HL0 is defined on the second electrode plate Cst2 to expose a portion of the first electrode plate Cst1 .
[0088] Referring to FIG. 10 , the first light shielding unit T3S, the second light shielding unit T4S, and the second electrode plate Cst2 may be rectangular in shape, and at least part of their top corners may be chamfered.
[0089] Referring to FIG. 10 , the second gate layer 127 further includes first electrical connection segments 311 disposed on both sides of the second electrode plate Cst2. The two first electrical connection segments 311 extend along the first direction X. In two adjacent sub-pixel units 211 disposed along the first direction X, the second electrodes Cst2 in the two sub-pixel units 211 are electrically connected via the first electrical connection segments 311. In this embodiment, the second electrode plate Cst2 is connected to the first high potential line VDD1. To reduce the impedance on the second electrode plate Cst2, the present application may connect the second electrodes Cst2 in the sub-pixel units 211 disposed along the first direction X to each other and to be disposed in parallel with the upper first high potential line VDD1, thereby reducing the impedance between the first high potential line VDD1 and the second electrode plate Cst2.
[0090] Referring to Figures 11 and 13, the second active layer 129 includes a compensation active portion T3A of the compensation transistor T3 and a first reset active portion T4A of the first reset transistor T4. The compensation active portion T3A and the first reset active portion T4A both extend along the second direction Y. A first end of the compensation active portion T3A and a first end of the first reset active portion T4A are connected to a fourth connection point P4. A second end of the compensation active portion T3A extends toward the second connection point P2 and is separated from the second connection point P2. A second end of the first reset active portion T4A extends toward the first reset signal line Vi1 and overlaps with the first reset signal line Vi1.
[0091] In this embodiment, the fourth connection point P4 may be the third node Q.
[0092] 11 and 13 , the second active layer 129 further includes a first extension segment 321 connected to the fourth connection point P4 and a second extension segment 322 connected to the second end of the first reset active portion T4A. The first extension segment 321 extends along the second direction Y toward the location of the storage capacitor Cst, and is separated from the storage capacitor Cst. The second extension segment 322 extends along the first direction X, and at least partially overlaps with the first reset signal line Vi1.
[0093] 12 and 13 , the third gate layer 131 includes a compensation gate T3G and a first reset gate T4G of the first reset transistor T4. The area of the compensation gate T3G is smaller than the area of the first light shielding unit T3S, and the orthographic projection of the compensation gate T3G on the first light shielding unit T3S is located within the first light shielding unit T3S. The area of the first reset gate T4G is smaller than the area of the second light shielding unit T4S, and the orthographic projection of the first reset gate T4G on the second light shielding unit T4S is located within the second light shielding unit T4S.
[0094] 12 and 13 , the first reset gate T4G and the first reset active portion T4A partially overlap, and the overlapping portion is the channel of the first reset active portion T4A; the compensation gate T3G and the compensation active portion T3A partially overlap, and the overlapping portion is the channel of the compensation active portion T3A.
[0095] 12 and 13 , the first reset gate T4G and the compensation gate T3G may both be rectangular in shape, and part of the top corners of the first reset gate T4G and the compensation gate T3G may be chamfered.
[0096] 12 and 13 , the third gate layer 131 further includes a first conductive segment 331 connected to the compensation gate T3G and a second conductive segment 332 connected to the first reset gate T4G. The first conductive segment 331 extends along the second direction Y toward a side away from the compensation gate T3G, and the second conductive segment 332 extends along the second direction Y toward a side away from the first reset gate T4G.
[0097] Referring to Figures 9 and 13 , the second gate layer 127 further includes a third conductive segment 333 connected to the first light shielding unit T3S, and a fourth conductive segment 334 connected to the second light shielding unit T4S. The third conductive segment 333 extends along the second direction Y toward a side away from the compensation gate T3G. The line width of the first conductive segment 331 can be less than or equal to the line width of the third conductive segment 333, and the orthographic projection of the first conductive segment 331 on the third conductive segment 333 can be located within the third conductive segment 333. The fourth conductive segment 334 can first extend along the second direction Y toward a side away from the first reset gate T4G, and then extend along the first direction X toward a side away from the compensation transistor T3. The ends of the second conductive segment 332 and the fourth conductive segment 334 away from the first reset gate T4G can be co-located.
[0098] Please refer to Figure 14, the first source and drain layer 133 includes a second reset signal line Vi2, a second control signal line Nscan3, a second high potential line VDD2, a second control signal line Pscan1, a first control signal line Nscan1, and a third control signal line Nscan2 arranged along the second direction Y. The second reset signal line Vi2, the second control signal line Nscan3, the second high potential line VDD2, the second control signal line Pscan1, the first control signal line Nscan1, and the third control signal line Nscan2 can all extend along the first direction X.
[0099] Please refer to Figures 14 to 17, the second reset signal line Vi2 is arranged between the third reset signal line Vi3 and the first control signal line Nscan1, the second control signal line Nscan3 and the fourth control signal line Pscan2 partially overlap, the second high potential line VDD2 is arranged between the light-emitting signal line EM and the first electrical connection section 311, the second control signal line Pscan1, the first control signal line Nscan1 and the third control signal line Nscan2 are arranged between the first electrical connection section 311 and the first reset signal line Vi1, and the second control signal line Pscan1 is arranged close to the first electrical connection section 311, the third control signal line Nscan2 is arranged close to the first reset signal line Vi1, and the first control signal line Nscan1 is arranged between the second control signal line Pscan1 and the third control signal line Nscan2.
[0100] Referring to Figures 14 to 17, the first source-drain layer 133 also includes a second electrical connection segment 312 arranged between the second reset signal line Vi2 and the third reset signal line Vi3. The first end of the second electrical connection segment 312 is electrically connected to the third reset signal line Vi3 through the first via HL1, and the second end of the second electrical connection segment 312 is electrically connected to the first end of the third reset active portion T8A through the second via HL2. The third reset signal line Vi3 transmits the reference voltage to the third reset transistor T8 through the second electrical connection segment 312.
[0101] In this embodiment, the first via hole HL1 passes through the second gate insulation layer 126 , the third gate insulation layer 128 , the fourth gate insulation layer 130 , and the first interlayer insulation layer 132 , and the second via hole HL2 passes through the first gate insulation layer 124 , the second gate insulation layer 126 , the third gate insulation layer 128 , the fourth gate insulation layer 130 , and the first interlayer insulation layer 132 .
[0102] In this embodiment, in order to avoid interference between the second electrical connection section 312 and the second reset signal line Vi2, the second reset signal line Vi2 is designed to be sunken at the position corresponding to the second electrical connection section 312, that is, the signal line in this area is offset to the side away from the third reset signal line Vi3; at the same time, in order to ensure the line distance between the second control signal line Nscan3 and the second reset signal line Vi2, the second control signal line Nscan3 is also designed to be sunken.
[0103] Referring to Figures 14 to 17, the first source and drain layer 133 also includes a third extension segment 323, a third electrical connection segment 313 and a fourth electrical connection segment 314 arranged between the second high potential line VDD2 and the second control signal line Nscan3. The third extension segment 323 and the third electrical connection segment 313 both extend along the second direction Y, and the fourth electrical connection segment 314 extends along the first direction X.
[0104] In this embodiment, the first end of the third extension section 323 is electrically connected to the second high potential line VDD2, the second end of the third extension section 323 extends to a side away from the second high potential line VDD2, and the third extension section 323 overlaps with a portion of the first light emitting active portion T5A, and the second end of the third extension section 323 passes through the third via hole HL3 and is electrically connected to the second end of the first light emitting active portion T5A; the first end of the third electrical connection section 313 passes through the fourth via hole HL4 and is electrically connected to the second end of the third reset active portion T8A, and the first active layer 123 further includes a fourth extension section connected to the first light emitting active portion T5A. 324, the fourth extension segment 324 extends along the first direction X, the second end of the third electrical connection segment 313 passes through the fifth via HL5 and is electrically connected to the fourth extension segment 324, and the third reset signal line Vi3 transmits the reference voltage to the first connection point P1 through the second electrical connection segment 312, the third electrical connection segment 313 and the fourth extension segment 324 to reset the potential of the first node A; one end of the fourth electrical connection segment 314 passes through a via and is electrically connected to the third connection point P3 in the first active layer 123, and the other end of the fourth electrical connection segment 314 passes through another via and is electrically connected to the conductive layer in the second source and drain layer 135.
[0105] In this embodiment, the third via hole HL3 passes through the first gate insulation layer 124, the second gate insulation layer 126, the third gate insulation layer 128, the fourth gate insulation layer 130, and the first interlayer insulation layer 132, and the fourth via hole HL4 and the fifth via hole HL5 both pass through the first gate insulation layer 124, the second gate insulation layer 126, the third gate insulation layer 128, the fourth gate insulation layer 130, and the first interlayer insulation layer 132.
[0106] 14 to 17 , the first source-drain layer 133 further includes a fifth electrical connection segment 315 and a sixth electrical connection segment 316 disposed between the second high potential line VDD2 and the second control signal line Pscan1 . Both the fifth electrical connection segment 315 and the sixth electrical connection segment 316 extend along the second direction Y.
[0107] In this embodiment, the first end of the fifth electrical connection segment 315 passes through the sixth via HL6 and is electrically connected to the end of the first extension segment 321 away from the second control signal line Pscan1. The second end of the fifth electrical connection segment 315 extends into the storage capacitor Cst and is electrically connected to the first electrode plate Cst1 of the storage capacitor Cst through the seventh via HL7. In the structure of Figure 16, the seventh via HL7 passes through the first through hole HL0 on the second electrode plate Cst2. The center of the first through hole HL0 and the center of the seventh through hole HL7 can be located on the same straight line perpendicular to the light emitting surface of the display panel 100; the fifth electrical connection segment 315 of the present application serves as an electrical connection component, one end of which passes through the sixth via HL6 and is electrically connected to the first extension segment 321, and the other end passes through the seventh via HL7 and is electrically connected to the first electrode plate Cst1 of the storage capacitor Cst, that is, the wires of the third node Q in the first gate layer 125 and the second active layer 129 are electrically connected through the metal of the first source and drain layer 133.
[0108] In this embodiment, a first end of the sixth electrical connection segment 316 passes through the eighth via hole HL8 and is electrically connected to the second connection point P2 in the first active layer 123 , and a second end of the sixth electrical connection segment 316 passes through the ninth via hole HL9 and is electrically connected to the second end in the compensation active portion T3A.
[0109] In this embodiment, the sixth via hole HL6 and the ninth via hole HL9 penetrate the fourth gate insulation layer 130 and the first interinsulation layer 132 , and the seventh via hole HL7 and the eighth via hole HL8 penetrate the first gate insulation layer 124 , the second gate insulation layer 126 , the third gate insulation layer 128 , the fourth gate insulation layer 130 , and the first interinsulation layer 132 .
[0110] Referring to Figures 14 to 17, the first source-drain layer 133 further includes a fifth extension segment 325, one end of the fifth extension segment 325 being electrically connected to the first control signal line Nscan1, and the fifth extension segment 325 extending along the second direction Y and toward a side away from the first control signal line Nscan1; the end of the fifth extension segment 325 away from the first control signal line Nscan1 passes through the tenth via HL10 and is electrically connected to the first conductive segment 331, and the first control signal line Nscan1 transmits the control signal to the compensation gate T3G of the compensation transistor T3 through the fifth extension segment 325 and the first conductive segment 331; at the same time, the end of the second conductive segment 332 away from the first reset gate T4G overlaps with the third control signal line Nscan2, and is electrically connected to the third control signal line Nscan2 through the eleventh via HL11, and the third control signal line Nscan2 transmits the control signal to the first reset gate T4G of the first reset transistor T4 through the second conductive segment 332.
[0111] In this embodiment, both the tenth via hole HL10 and the eleventh via hole HL11 pass through the first interlayer insulating layer 132 .
[0112] Please refer to Figures 14 to 17. The third conductive segment 333 overlaps with the first conductive segment 331 and the third conductive segment 333, and the third conductive segment 333 passes through the twelfth via HL12 and is electrically connected to the first control signal line Nscan1. The first control signal line Nscan1 transmits the control signal to the first light shielding unit T3S through the third conductive segment 333. That is, the first light shielding unit T3S can be reused as the bottom gate of the compensation transistor T3, and the compensation gate T3G is the top gate of the compensation transistor T3. The arrangement of the first light shielding unit T3S and the compensation gate T3G can increase the conduction rate of the compensation transistor T3 and improve the compensating transistor T3. Device effect; the fourth conductive segment 334 overlaps with a portion of the third control signal line Nscan2, and is electrically connected to the third control signal line Nscan2 through the thirteenth through-hole HL13. The third control signal line Nscan2 transmits the control signal to the second shading unit T4S through the fourth conductive segment 334, that is, the second shading unit T4S can be reused as the bottom gate of the first reset transistor T4, and the first reset gate T4G is the top gate of the first reset transistor T4. The setting of the second shading unit T4S and the first reset gate T4G can increase the conduction rate of the first reset transistor T4 and improve the device effect of the first reset transistor T4.
[0113] In this embodiment, the twelfth via hole HL12 and the thirteenth via hole HL13 both penetrate the third gate insulating layer 128 , the fourth gate insulating layer 130 , and the first interlayer insulating layer 132 .
[0114] It should be noted that the third conductive segment 333 may be insulated from the first control signal line Nscan1 , and the fourth conductive segment 334 may be insulated from the third control signal line Nscan2 .
[0115] 14 to 17 , the second control signal line Nscan3 can pass through the fourteenth via HL14 and be connected in parallel with the fourth control signal line Pscan2 , that is, the fifth control signal and the fourth control signal line Pscan2 are set in parallel, thereby reducing the impedance of the second control signal line Nscan3 and the fourth control signal line Pscan2 .
[0116] In this embodiment, the fourteenth via hole HL14 passes through the second gate insulating layer 126 , the third gate insulating layer 128 , the fourth gate insulating layer 130 , and the first interlayer insulating layer 132 .
[0117] Please refer to Figures 14 to 17. The first control signal line Nscan1 partially overlaps with the first reset active portion T4A, the second control signal line Pscan1 partially overlaps with the first extension segment 321, and the second control signal line Pscan1 partially overlaps with the compensation active portion T3A. The third control signal line Nscan2 partially overlaps with the first reset active portion T4A. The four overlapping areas are all overlapped by the material of the second active layer 129 and the material of the first source-drain layer 133. The fourth gate insulating layer 130 and the first inter-insulating layer 132 are interposed between the first source-drain layer 133 and the second active layer 129, and the material of the third gate layer 131 is not provided in between, thereby avoiding the technical problem that the third gate layer 131 is easily short-circuited with the first source-drain layer 133.
[0118] Please refer to Figures 14 to 17. The overlapping portion of the second control signal line Pscan1 and the first extension section 321 is the boost capacitor Cboost of the present application. The third plate of the boost capacitor Cboost can be the portion of the first extension section 321 that overlaps with the second control signal line Pscan1. The fourth plate of the boost capacitor Cboost can be the portion of the second control signal line Pscan1 that overlaps with the first extension section 321.
[0119] Please refer to Figures 14 to 17. The first source and drain layer 133 also includes a seventh electrical connection segment 317 arranged between the second reset signal line Vi2 and the third control signal line Nscan2. The seventh electrical connection segment 317 extends along the second direction Y and toward a side away from the second reset signal line Vi2. The seventh electrical connection segment 317 and the second extension segment 322 are arranged in an overlapping manner, which is equivalent to forming a capacitor between the first reset signal line Vi1 and the second reset signal line Vi2, thereby ensuring the stability of the voltage on the first reset signal line Vi1 and the second reset signal line Vi2.
[0120] In this embodiment, the fifth electrical connection section 315 and the first extension section 321 are both wires in the area where the third node of the present application is located, that is, the potential on the fifth electrical connection section 315 and the first extension section 321 is the potential of the third node Q; at the same time, the second control signal line Pscan1 and the first extension section 321 are overlapped in the first area M1, that is, the first extension section 321 of the present application is in the second active layer 129, and the second control signal line Pscan1 is in the first source and drain layer 133. Part of the wires in the area where the third node Q is located are replaced from the original third gate layer 131 to the second active layer 129 of the present application, thereby avoiding the technical problem of cracks in the upper insulating layer, and at the same time avoiding the technical problem of the horizontally arranged second control signal line Pscan1 being short-circuited with the lower wire in the first area M1.
[0121] At the same time, the first control signal line Nscan1 and the compensation active portion T3A are overlapped in the second region M2, the second control signal line Pscan1 and the first reset active portion T4A are overlapped in the third region M3, and the third control signal line Nscan2 and the first reset active portion T4A are overlapped in the fourth region M4; that is, the compensation active portion T3A and the first reset active portion T4A of the present application are both in the second active layer 129, the first control signal line Nscan1 and the third control signal line Nscan2 are both in the first source and drain layer 133, so that the first control signal line Nscan1 can1, the second control signal line Pscan1 and the third control signal line Nscan2 are replaced from the gate layer with larger impedance to the first source and drain layer 133 with smaller impedance, for example, the original metal molybdenum is replaced with the titanium aluminum titanium of the present application, thereby reducing the impedance of the three control signal lines; secondly, since there is a risk of short circuit due to the overlap of the first source and drain layer 133 and the third gate layer 131, the present application replaces the wires in the area where the third node Q is located from the third gate layer 131 to the second active layer 129 to avoid short circuit between the wires in the area where the third node Q is located and the first source and drain layer 133.
[0122] Referring to Figure 18, the second source-drain layer 135 includes a first data signal line Data1, a second data signal line Data2, and a first high potential line VDD1. The second data signal line Data2, the first data signal line Data1, and the first high potential line VDD1 are arranged along a first direction X and extend along a second direction Y. The first data signal line Data1 is disposed between the second data signal line Data2 and the first high potential line VDD1.
[0123] 18 to 20 , the first high potential line VDD1 includes a first sub-plate 341, a second sub-plate 342, a third sub-plate 343, a fourth sub-plate 344, and a fifth sub-plate 345. The third sub-plate 343, the first sub-plate 341, the fourth sub-plate 344, the second sub-plate 342, and the fifth sub-plate 345 are arranged along the second direction Y. The first sub-plate 341 is arranged between the third sub-plate 343 and the fourth sub-plate 344, and the second sub-plate 342 is arranged between the fourth sub-plate 344 and the fifth sub-plate 345. In the first direction X, the width of the first sub-plate 341 is smaller than the width of the second sub-plate 342, the width of the first sub-plate 341 may be greater than the width of the fourth sub-plate 344, and the width of the fourth sub-plate 344 may be greater than or equal to the width of the third sub-plate 343 and the fifth sub-plate 345.
[0124] In this embodiment, since the potential of the driving gate T1G is the potential of the third node Q, the potential change of the third node Q directly affects the working current of the light-emitting device 211b, so this application needs to ensure the stability of the potential of the third node Q; this application can make the positive projection of the driving gate T1G on the first high potential line VDD1 located within the first sub-plate 341, which is equivalent to using the first sub-plate 341 as a shielding layer to maintain the stability of the potential of the third node Q. Therefore, this application needs to increase the lateral width of the first sub-plate 341 so that the first sub-plate 341 fully covers the driving gate T1G, and the first electrode Cst1 of the storage capacitor Cst is reused as the driving gate T1G, that is, the positive projection of the first electrode Cst1 on the first high potential line VDD1 can be located within the first sub-plate 341, so the width of the first sub-plate 341 of this application can be greater than the width of the third sub-plate 343, the fourth sub-plate 344 and the fifth sub-plate 345.
[0125] In this embodiment, the fifth electrical connection section 315 and the first extension section 321 are both electrically connected to the driving gate T1G, so changes in the potential on the fifth electrical connection section 315 and the first extension section 321 will also affect the potential of the driving gate T1G. Therefore, the present application can increase the width of the fourth sub-plate 344 to fully cover the fifth electrical connection section 315 and the first extension section 321. Therefore, the lateral width of the fourth sub-plate 344 of the present application can be greater than the lateral width of the third sub-plate 343 and the fifth sub-plate 345.
[0126] Please refer to Figures 18 and 19. The positive projection of the compensation gate T3G on the first high-potential line VDD1 is located in the second sub-board 342. Part of the first high-potential line VDD1 overlaps with the compensation gate T3G and part of the first control signal line Nscan1. The two can form a capacitor, thereby improving the anti-coupling capability of the first control signal line Nscan1, thereby improving the stability of the control signal transmitted by the first control signal line Nscan1, avoiding abnormal start-up of the compensation transistor T3, and ensuring the stability of the potential of the gate of the driving transistor T1.
[0127] Referring to Figures 18 to 20, the first source and drain layer 133 of the first sub-pixel unit 211c may include an eighth electrical connection segment 318a arranged between the first control signal line Nscan1 and the second control signal line Pscan1, one end of the eighth electrical connection segment 318a is electrically connected to the second end of the switch active portion T2A, and the other end of the eighth electrical connection segment 318a is electrically connected to the first data signal line Data1, and the first data signal line Data1 transmits the data signal to the switching transistor T2 through the eighth electrical connection segment 318a.
[0128] In this embodiment, the eighth electrical connection section 318a in Figures 18 to 20 can be the first electrical connection component 610 of the first sub-pixel unit 211c of the present application, that is, the switch active part T2A of the first sub-pixel unit 211c is electrically connected to the first data signal line Data1 through the first electrical connection component 610.
[0129] Referring to Figures 21 and 22, the first source and drain layer 133 of the second sub-pixel unit 211d may include an eighth electrical connection segment 318b arranged between the first control signal line Nscan1 and the second control signal line Pscan1, one end of the eighth electrical connection segment 318b is electrically connected to the second end of the switch active portion T2A, and the other end of the eighth electrical connection segment 318b is electrically connected to the second data signal line Data2, and the second data signal line Data2 transmits the data signal to the switching transistor T2 through the eighth electrical connection segment 318b.
[0130] In this embodiment, the eighth electrical connection section 318b in Figures 21 and 22 can be the second electrical connection component 620 of the second sub-pixel unit 211d of the present application, that is, the switch active part T2A of the second sub-pixel unit 211d is electrically connected to the second data signal line Data2 through the second electrical connection component 620.
[0131] In the structure of Figure 2, this application lists 6 sub-pixel units 211. The sub-pixel units 211 located in the first row are all connected to the first data signal line Data1, and the sub-pixel units 211 located in the second row are all connected to the second data signal line Data2. The sub-pixel units 211 listed in Figures 19 and 20 of this application are the first sub-pixel units 211c in the first row in Figure 2, and the sub-pixel units 211 listed in Figures 21 and 22 of this application are the second sub-pixel units 211d in the second row in Figure 2.
[0132] In Figures 19 and 22, the switch active portion T2A of the first sub-pixel unit 211c and the switch active portion T2A of the second sub-pixel unit 211d both extend between the first data signal line Data1 and the second data signal line Data2, and partially overlap with one of the first data signal line Data1 or the second data signal line Data2. The switch active portion T2A of the first sub-pixel unit 211c and the switch active portion T2A of the second sub-pixel unit 211d in Figures 19 and 22 are both arranged to overlap with the first data signal line Data1.
[0133] In Figures 19 and 22, since the patterns of the switch active portion T2A of the first sub-pixel unit 211c and the switch active portion T2A of the second sub-pixel unit 211d are the same, the switch active portion T2A of the first sub-pixel unit 211c has a first connection end electrically connected to the first electrical connection component 610, and the switch active portion T2A of the second sub-pixel unit 211d has a second connection end electrically connected to the second electrical connection component 620, and the center line connecting the first connection end and the second connection end is parallel to the second direction Y; at the same time, the first connection end and the second connection end are both arranged between the first data signal line Data1 and the second data signal line Data2.
[0134] In Figures 19 and 22, the first electrical connecting member 610 extends toward the side close to the repeating unit 500, and the second electrical connecting member 620 extends toward the side away from the repeating unit 500. The first electrical connecting member 610 and the first data signal line Data1 partially overlap, so that the first electrical connecting member 610 and the first data signal line Data1 are electrically connected. The first electrical connecting member 610 and the second data signal line Data2 do not overlap. The second electrical connecting member 620 and the second data signal line Data2 partially overlap. The second electrical connecting member 620 and the first data signal line Data1 do not overlap, so that the second electrical connecting member 620 and the second data signal line Data2 are electrically connected.
[0135] Please refer to Figure 19. The first data signal line Data1 includes multiple first longitudinal segments Data1a and a first avoidance segment Data1b arranged between two adjacent first longitudinal segments Data1a. The spacing between the first avoidance segment Data1b and the repeating unit 500 is smaller than the spacing between the first longitudinal segment Data1a and the repeating unit 500. The switch active portion T2A of the first sub-pixel unit 211c is electrically connected to the first avoidance segment Data1b through the first electrical connection component 610.
[0136] Please refer to Figure 22. The second data signal line Data2 includes multiple second longitudinal segments Data2a and a second avoidance segment Data2b arranged between two adjacent second longitudinal segments Data2a. The first avoidance segment Data1b and the second avoidance segment Data2b are arranged opposite to and in parallel. The distance between the second avoidance segment Data2b and the repeating unit 500 is greater than the distance between the second longitudinal segment Data2a and the repeating unit 500. The switch active portion T2A of the second sub-pixel unit 211d is electrically connected to the second avoidance segment Data2b through the second electrical connection component 620.
[0137] The setting of the first avoidance segment Data1b and the second avoidance segment Data2b in this application is mainly that the first avoidance segment Data1b needs to pass through the via and be electrically connected to the first electrical connection component 610, and the second avoidance segment Data2b needs to pass through the corresponding via and be electrically connected to the second electrical connection component 620. In order to avoid interference between the via and the adjacent data signal line, avoidance segments are respectively set at the position of the via.
[0138] Please refer to FIG. 18 . A central axis O1 is defined between the first data signal line Data1 and the second data signal line Data2 . The first avoidance section Data1 b and the second avoidance section Data2 b are symmetrically arranged around the central axis O1 .
[0139] Please refer to Figure 23. There is a central axis O1 between the first data signal line Data1 and the second data signal line Data2, and the distance between the first avoidance segment Data1b and the central axis O1 is smaller than the distance between the second avoidance segment Data2b and the central axis O1; since the distance between the first avoidance segment Data1b and the adjacent first high potential line VDD1 is smaller than the distance between the second avoidance segment Data2b and the adjacent first high potential line VDD1, the present application can reduce the distance between the first avoidance segment Data1b and the central axis O1, so that the distance between the first avoidance segment Data1b and the adjacent first high potential line VDD1 and the distance between the second avoidance segment Data2b and the adjacent first high potential line VDD1 are equal, avoiding the capacitance difference between the data signal line and the first high potential line VDD1, which causes the difference in data signals transmitted by the first data signal line Data1 and the second data signal line Data2.
[0140] 24 and 26 , the third source-drain layer 137 may include a third high potential line VDD3 extending along the second direction Y, the third high potential line VDD3 being electrically connected to the second high potential line VDD2, and the third high potential line VDD3 being provided mainly to reduce the impedance of the conductor that transmits a constant voltage high level.
[0141] It should be noted that in Figures 18 to 24, the first high potential line VDD1 of the present application can be electrically connected to the second high potential line VDD2, and then the second high potential line VDD2 is electrically connected to the second electrode Cst2 of the storage capacitor Cst, and the second electrode Cst2 located in the same row is electrically connected through the first electrical connection section 311; therefore, the wire for transmitting a constant voltage high level of the present application has four layers of metal, namely, the second electrode Cst2 and the first electrical connection section 311 located in the second gate layer 127, the second high potential line VDD2 located in the first source and drain layer 133, and the second electrode Cst2 located in the first source and drain layer 133. The bit line VDD2, the first high potential line VDD1 located in the second source and drain layer 135, the third high potential line VDD3 located in the third source and drain layer 137, the second electrode plate Cst2, the first electrical connection section 311, and the second high potential line VDD2 all extend along the first direction X, and the first high potential line VDD1 and the third high potential line VDD3 all extend along the second direction Y. Therefore, the present application uses four layers of metal to transmit a constant voltage high level to form a metal mesh that is crisscrossed horizontally and vertically in a mesh shape to reduce the impedance of the wire, thereby reducing the loss of the constant voltage high level on the transmitted wire.
[0142] 27 , the third source / drain layer 137 of the present application includes a plurality of potential line units 137 a. Each potential line unit 137 a is arranged along the first direction X and corresponds to three adjacent sub-pixel units 211, such as a red sub-pixel unit 212, a green sub-pixel unit 213, and a blue sub-pixel unit 214. For example, the three sub-pixel units 211 are respectively the red sub-pixel unit 212, the green sub-pixel unit 213, and the blue sub-pixel unit 214. Each potential line unit 137 a may include a red sub-pixel unit 212, a green sub-pixel unit 213, and a blue sub-pixel unit 214. 2, the third third high potential line VDD3 corresponding to the blue sub-pixel unit 214, the second high potential line corresponding to the green sub-pixel unit 213, and the fourth reset signal line Vi4, the patterns of the first third high potential line VDD3 and the third third high potential line VDD3 can be the same, the patterns of the second third high potential line VDD3 and the third third high potential line VDD3 are different, and the lateral width of the second third high potential line VDD3 is smaller than the lateral width of the third third high potential line VDD3.
[0143] It should be noted that the sub-pixel colors corresponding to the three high-potential lines can be randomly arranged and are not limited to the above embodiment.
[0144] Please refer to Figure 27. Each potential line unit 137a is provided with a longitudinal reset signal line and three transverse reset signal lines, that is, each potential line unit 137a can also include a fourth reset signal line Vi4 located in the green sub-pixel unit 213. The fourth reset signal line Vi4 in each potential line unit 137a is electrically connected to one of the first reset signal line Vi1, the second reset signal line Vi2 and the third reset signal line Vi3, and the reset signal lines connected to the fourth reset signal line Vi4 in three adjacent potential line units 137a are different.
[0145] In order to reduce the impedance of the reset signal line, the present application provides that the longitudinally arranged reset signal line can be electrically connected to one of the three transverse reset signal lines; for example, three rows of potential line units 137a are provided in FIG28, and each row of potential line units 137a includes three potential line units 137a, and each potential line unit 137a is provided with a fourth reset signal line Vi4, and the fourth reset signal line Vi4 in the first potential line unit 137a can be electrically connected to the first reset signal line Vi1 of each row, the fourth reset signal line Vi4 in the second potential line unit 137a can be electrically connected to the second reset signal line Vi2 of each row, and the fourth reset signal line Vi4 in the third potential line unit 137a can be electrically connected to the third reset signal line Vi3 of each row, thereby electrically connecting each transversely arranged reset signal line to the fourth reset signal line Vi4 to form a metal mesh that is crisscrossed horizontally and vertically, thereby reducing the impedance of the reset signal line.
[0146] It should be noted that the first sub-pixel unit 212, the second sub-pixel unit 213 and the third sub-pixel unit 214 in Figure 27 only represent the position of the pixel driving circuit 211a of the corresponding sub-pixel unit 211, and the position of the anode in the sub-pixel unit 211 may not be in the corresponding area; for example, please refer to Figure 29, the pixel driving circuit 211a in the first sub-pixel unit 212 of the present application is electrically connected to the first anode 211b1, and the pixel driving circuit 211a in the second sub-pixel unit 213 is electrically connected to the second anode 211b2, the first anode 211b1 and the second anode 211b2 are arranged along the second direction Y, and the first anode 211b1 and the second anode 211b2 both span the first sub-pixel unit 212 and the second sub-pixel unit 213.
[0147] It should be noted that, in FIG29 , the third source-drain electrode layer 137 may further include a ninth electrical connection segment 319 and a tenth electrical connection segment 320, the ninth electrical connection segment 319 being disposed between the fourth reset signal line Vi4 and the second third high potential line VDD3, the tenth electrical connection segment 320 being disposed on one side of the first third high potential line VDD3 and the third third high potential line VDD3, the tenth electrical connection segment 320 corresponding to the fourth electrical connection segment 314; the second source-drain electrode layer 135 may further include an eleventh electrical connection segment 321, and the second anode 211b2 may be connected to the ninth electrical connection segment 321 of the second sub-pixel unit 213. Segment 319, the eleventh electrical connection segment 321, the fourth electrical connection segment 314 and the third connection point P3 of the first active layer 123 in the pixel driving circuit 211a of the second sub-pixel unit 213 are electrically connected; similarly, the first anode 211b1 can be electrically connected through the tenth electrical connection segment 320, the eleventh electrical connection segment 321, the fourth electrical connection segment 314 and the third connection point P3 of the first active layer 123 in the pixel driving circuit 211a of the first sub-pixel unit 212; similarly, the connection method of the anode in the third sub-pixel unit 314 is the same as the connection method of the first anode 211b1.
[0148] The present application also provides a display device, comprising the above-mentioned display panel. The display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigation system.
[0149] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0150] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A display panel comprising a plurality of repeating units and a first data signal line and a second data signal line disposed on one side of the repeating units, wherein the repeating units include at least one first sub-pixel unit and at least one second sub-pixel unit, wherein each of the first sub-pixel unit and the second sub-pixel unit includes a pixel driving circuit and a light-emitting device connected to the pixel driving circuit; in, The display panel also includes a first electrically connecting component and a second electrically connecting component. The pixel driving circuit of the first sub-pixel unit is electrically connected to the first data signal line through the first electrically connecting component, and the pixel driving circuit of the second sub-pixel unit is electrically connected to the second data signal line through the second electrically connecting component. The first electrically connecting component, the second electrically connecting component, the first data signal line and the second data signal line are all arranged on the same side of the repeating unit.
2. The display panel according to claim 1, wherein The pixel driving circuits of the first sub-pixel unit and the second sub-pixel unit each include a switching transistor, a driving transistor, and a compensation transistor connected to each other, wherein the switching transistor includes a switch active portion; The switch active portion of the first sub-pixel unit is electrically connected to the first data signal line through the first electrical connection member, and the switch active portion of the second sub-pixel unit is electrically connected to the second data signal line through the second electrical connection member.
3. The display panel according to claim 2, wherein: The switch active portion of the first sub-pixel unit and the switch active portion of the second sub-pixel unit have the same pattern; The switch active portion of the first sub-pixel unit and the switch active portion of the second sub-pixel unit both partially overlap with one of the first data signal line or the second data signal line.
4. The display panel according to claim 3, wherein: The switch active portion of the first sub-pixel unit has a first connection end electrically connected to the first electrical connection member, and the switch active portion of the second sub-pixel unit has a second connection end electrically connected to the second electrical connection member; The first connection end and the second connection end are both arranged between the first data signal line and the second data signal line, and a center line connecting the first connection end and the second connection end is parallel to the second direction.
5. The display panel according to claim 3, wherein: The first data signal line is arranged between the repeating unit and the second data signal line; The first electrical connection member extends toward the side close to the repeating unit, and the second electrical connection member extends toward the side away from the repeating unit. The first electrical connection member partially overlaps with the first data signal line, and the first electrical connection member does not overlap with the second data signal line. The second electrical connection member partially overlaps with the second data signal line, and the second electrical connection member does not overlap with the first data signal line. The display panel according to claim 5 , wherein: The first data signal line includes a plurality of first longitudinal segments and a first avoidance segment provided between two adjacent first longitudinal segments, and the second data signal line includes a plurality of second longitudinal segments and a second avoidance segment provided between two adjacent second longitudinal segments, wherein the first avoidance segment and the second avoidance segment are arranged opposite to and in parallel; Particularly, the distance between the first avoidance section and the repeating unit is smaller than the distance between the first longitudinal section and the repeating unit, the distance between the second avoidance section and the repeating unit is larger than the distance between the second longitudinal section and the repeating unit, the switch active portion of the first sub-pixel unit is electrically connected to the first avoidance section through the first electrical connection component, and the switch active portion of the second sub-pixel unit is electrically connected to the second avoidance section through the second electrical connection component.
7. The display panel according to claim 6, wherein: A central axis is defined between the first data signal line and the second data signal line, and the first avoidance section and the second avoidance section are symmetrically arranged with the central axis as an axis.
8. The display panel according to claim 2, wherein: A first electrode of the switch transistor is connected to one of the first data signal line or the second data signal line, and a second electrode of the switch transistor is connected to a first node; The first electrode of the driving transistor is connected to the first node, the second electrode of the driving transistor is connected to the second node, and the driving gate of the driving transistor is connected to the third node; The first electrode of the compensation transistor is connected to the third node, and the second electrode of the compensation transistor is connected to the second node; In which, the compensation gate of the compensation transistor is connected to the first control signal line, the switch gate of the switching transistor is connected to the second control signal line, and the first electrical connection component and the second electrical connection component are both arranged between the first control signal line and the second control signal line in the corresponding pixel driving circuit.
9. The display panel according to claim 1, wherein: The pixel driving circuit further includes: a first reset transistor, wherein a first electrode of the first reset transistor is connected to a first reset signal line, a second electrode of the first reset transistor is connected to a third node, and a first reset gate of the first reset transistor is connected to a third control signal line; a second reset transistor, wherein a first electrode of the second reset transistor is connected to a second reset signal line, a second electrode of the second reset transistor is connected to an anode of the light-emitting device, and a second reset gate of the second reset transistor is connected to a fourth control signal line; a third reset transistor, wherein a first electrode of the third reset transistor is connected to a third reset signal line, a second electrode of the third reset transistor is connected to the first node, and a third reset gate of the third reset transistor is connected to the fourth control signal line; a first light emitting transistor, wherein a first electrode of the first light emitting transistor is connected to a first high potential line, a second electrode of the first light emitting transistor is connected to the first node, and a first light emitting gate of the first light emitting transistor is connected to a light emitting signal line; a second light emitting transistor, wherein a first electrode of the second light emitting transistor is connected to the second node, a second electrode of the second light emitting transistor is connected to the anode of the light emitting device, and a second light emitting gate of the second light emitting transistor is connected to the light emitting signal line; a storage capacitor, the storage capacitor comprising a first plate and a second plate, the first plate being connected to the third node, and the second plate being connected to the first high potential line; A boost capacitor includes a third plate and a fourth plate, wherein the third plate is connected to the third node, and the fourth plate is connected to the second control signal line.
10. The display panel according to claim 9, wherein: The capacitance value of the boost capacitor is smaller than the capacitance value of the storage capacitor.
11. The display panel according to claim 9, wherein: The first gate layer of the display panel includes a light-emitting signal line, a first reset signal line, a third reset signal line, and a fourth control signal line. The light-emitting signal line, the first reset signal line, the third reset signal line, and the fourth control signal line all extend along the first direction, and the third reset signal line, the fourth control signal line, the light-emitting signal line, and the first reset signal line are arranged at intervals along the second direction.
12. The display panel according to claim 11, wherein: The first active layer of the display panel includes a switch active portion of the switch transistor, a drive active portion of the drive transistor, a second reset active portion of the second reset transistor, a third reset active portion of the third reset transistor, a first light emitting active portion of the first light emitting transistor, and a second light emitting active portion of the second light emitting transistor; Among them, the switch active part, the driving active part, the second reset active part, the first light-emitting active part, and the second light-emitting active part are connected to each other, the switch active part, the second reset active part, the third reset active part, the first light-emitting active part, and the second light-emitting active part extend along the second direction, and the driving active part is arranged between the first light-emitting active part and the second light-emitting active part.
13. The display panel according to claim 12, wherein: The second gate layer of the display panel includes a second plate of the storage capacitor arranged along the second direction, a first shading unit of the compensation transistor, and a second shading unit of the first reset transistor. The second plate, the first shading unit and the second shading unit are located between the light-emitting signal line and the first reset signal line. The first plate is arranged close to the light-emitting signal line, the second shading unit is arranged close to the first reset signal line, and the first shading unit is located between the second shading unit and the second plate.
14. The display panel according to claim 13, wherein: The second gate layer also includes first electrical connection segments arranged on both sides of the second electrode plate, and the two first electrical connection segments both extend along the first direction. In two adjacent sub-pixel units arranged along the first direction, the second electrodes in the two sub-pixel units are electrically connected through the first electrical connection segments.
15. The display panel according to claim 13, wherein: The second active layer of the display panel includes a compensation active portion of the compensation transistor and a first reset active portion of the first reset transistor, the compensation active portion and the first reset active portion both extend along the second direction, a first end of the compensation active portion is connected to a first end of the first reset active portion, and a second end of the first reset active portion extends toward the first reset signal line and overlaps with the first reset signal line.
16. The display panel according to claim 15, wherein: The second active layer also includes a first extension segment and a second extension segment connected to the second end of the first reset active portion, the first extension segment extends along the second direction and extends toward the location of the storage capacitor, the first extension segment is separated from the storage capacitor, the second extension segment extends along the first direction, and the second extension segment and the first reset signal line at least partially overlap.
17. The display panel according to claim 15, wherein: The third gate layer of the display panel includes a compensation gate of the compensation transistor and a first reset gate of the first reset transistor, an area of the compensation gate is smaller than an area of the first shading unit, and an orthographic projection of the compensation gate on the first shading unit is located within the first shading unit. The area of the first reset gate is smaller than an area of the second shading unit, and an orthographic projection of the first reset gate on the second shading unit is located within the second shading unit.
18. The display panel according to claim 17, wherein: The third gate layer further includes a first conductive segment connected to the compensation gate and a second conductive segment connected to the first reset gate, the first conductive segment extending along the second direction and toward a side away from the compensation gate, and the second conductive segment extending along the second direction and toward a side away from the first reset gate.
19. The display panel according to claim 18, wherein: The first source and drain layer of the display panel includes a second reset signal line, a fifth control signal line, a second high potential line, a second control signal line, a first control signal line, and a third control signal line arranged along the second direction, and the second reset signal line, the fifth control signal line, the second high potential line, the second control signal line, the first control signal line, and the third control signal line all extend along the first direction.
20. A display device, comprising a display panel, the display panel comprising a plurality of repeating units and a first data signal line and a second data signal line disposed on one side of the repeating units, the repeating units comprising at least one first sub-pixel unit and at least one second sub-pixel unit, the first sub-pixel unit and the second sub-pixel unit each comprising a pixel driving circuit and a light-emitting device connected to the pixel driving circuit; in, The display panel also includes a first electrically connecting component and a second electrically connecting component. The pixel driving circuit of the first sub-pixel unit is electrically connected to the first data signal line through the first electrically connecting component, and the pixel driving circuit of the second sub-pixel unit is electrically connected to the second data signal line through the second electrically connecting component. The first electrically connecting component, the second electrically connecting component, the first data signal line and the second data signal line are all arranged on the same side of the repeating unit.
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