WO2023040596A1 - 显示基板及显示装置 - Google Patents

显示基板及显示装置 Download PDF

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Publication number
WO2023040596A1
WO2023040596A1 PCT/CN2022/114047 CN2022114047W WO2023040596A1 WO 2023040596 A1 WO2023040596 A1 WO 2023040596A1 CN 2022114047 W CN2022114047 W CN 2022114047W WO 2023040596 A1 WO2023040596 A1 WO 2023040596A1
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WO
WIPO (PCT)
Prior art keywords
touch
area
layer
frame area
lines
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PCT/CN2022/114047
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English (en)
French (fr)
Inventor
王威
张毅
张顺
张元其
罗昶
文平
王裕
曾扬
陈天赐
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Publication of WO2023040596A1 publication Critical patent/WO2023040596A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display substrate and a display device.
  • OLED display devices are display screens based on organic electroluminescent diodes. It has excellent characteristics such as self-illumination, high contrast, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, simple structure and manufacturing process, and has attracted more and more attention. Its application prospects broad.
  • touch functions are integrated by embedding touch modules in OLED display modules, so as to realize the integration of display functions and touch functions of OLED display devices.
  • a display substrate and a display device provided in an embodiment of the present disclosure the specific scheme is as follows:
  • an embodiment of the present disclosure provides a display substrate, including:
  • the base substrate includes a display area, and a frame area surrounding the display area;
  • a plurality of first touch lines located in the frame area on at least one side of the display area;
  • an insulating layer located on a side of the layer where the plurality of first touch wires are located away from the base substrate;
  • a shielding structure located on a side of the insulating layer away from the layer where the plurality of first touch lines are located, and the shielding structure is located in the frame area on at least one side of the display area; in the same frame area,
  • the orthographic projection of the shielding structure on the base substrate overlaps with at least part of the orthographic projection of the first touch wire.
  • the frame area includes a first frame area for binding with a flexible circuit board
  • the shielding structure includes a first shielding structure located in the first frame area, and the plurality of first touch lines includes a plurality of touch leads located in the first frame area.
  • the above-mentioned display substrate provided by the embodiments of the present disclosure further includes a bridge layer and a touch layer that are stacked on the base substrate and insulated from each other;
  • the first shielding structure is located on the touch layer, and the plurality of touch leads are located on the bridging layer.
  • the above-mentioned display substrate provided by the embodiments of the present disclosure further includes a first gate metal layer, a second gate metal layer, a first source-drain metal layer stacked on the base substrate and insulated from each other. layer, the second source-drain metal layer, the bridging layer and the touch layer, wherein,
  • the first shielding structure is located on at least one of the first source-drain metal layer, the second source-drain metal layer, the bridging layer, and the touch layer, and the plurality of touch leads are located on the the first gate metal layer and/or the second gate metal layer.
  • the first frame area includes a first fan-out area, a bending area and a second fan-out area arranged in sequence in a direction away from the display area. Out of the area;
  • the first shielding structure and the plurality of touch leads are located in the second fan-out area.
  • the frame area further includes a second frame area opposite to the first frame area, connecting the first frame area and the a third frame area of the second frame area, and a fourth frame area opposite to the third frame area;
  • the plurality of first touch lines further include a plurality of The first touch signal line
  • the touch layer further includes a plurality of second touch signal lines, at least some of the second touch signal lines are electrically connected to the first touch signal lines in one-to-one correspondence.
  • the frame area includes a first frame area for binding with a flexible circuit board, and a second frame area opposite to the first frame area A frame area, a third frame area connecting the first frame area and the second frame area, and a fourth frame area opposite to the third frame area;
  • the first frame area includes a first fan-out area, a bending area and a second fan-out area arranged in sequence in a direction away from the display area;
  • the shielding structure includes a second shielding structure, and the plurality of first touch lines It includes a plurality of first touch signal lines.
  • the above-mentioned display substrate provided by the embodiments of the present disclosure further includes a bridge layer and a touch layer that are stacked on the base substrate and insulated from each other;
  • the second shielding structure is located on the touch layer, and the plurality of first touch signal lines are located on the bridging layer.
  • the above display substrate provided by the embodiments of the present disclosure further includes: a plurality of floating lines located in the first fan-out area;
  • the plurality of first touch signal lines are divided into at least one group of touch signal lines, and the plurality of floating lines are located on both sides of the at least one group of touch signal lines. at least one side.
  • the plurality of floating lines include a plurality of first floating lines located in the touch layer, and a plurality of floating lines located in the bridging layer.
  • the second floating line wherein,
  • the number of the plurality of first floating lines is greater than the number of the plurality of second floating lines, and the orthographic projection of each of the second floating lines on the base substrate is the same as that of one of the first floating lines.
  • the orthographic projections of the floating lines roughly coincide.
  • the bridging layer further includes at least one grounding line disposed on a side of the first touch line away from the display area;
  • the shielding structure located on the touch layer and/or the bridging layer is electrically connected to the ground wire.
  • the first source-drain metal layer and/or the second source-drain metal layer further include The low level signal line of the area setting;
  • the first shielding structure located on the first source-drain metal layer and/or the second source-drain metal layer is multiplexed with the low-level signal line.
  • the first source-drain metal layer and/or the second source-drain metal layer further include a plurality of connection lines located in the bending region , the connecting wire connects the touch lead wire and the first touch signal wire.
  • the orthographic projection of the shielding structure on the base substrate covers and is larger than the orthographic projection of the plurality of first touch lines, and each The gap orthographic projection of the first touch line.
  • the shielding structure includes a plurality of first shielding wires, and second shielding wires arranged on the same layer as the plurality of first shielding wires and intersecting.
  • the orthographic projections of the plurality of first shielding wires on the substrate substantially coincide with the orthographic projections of the plurality of first touch wires.
  • the above-mentioned display substrate provided by the embodiments of the present disclosure further includes a plurality of second touch lines located in the frame area, and the plurality of second touch lines are the same as the shielding structure. layer and the same material, at least two of the second touch wires are electrically connected to the same first touch wire;
  • the shielding structure includes a plurality of sub-shielding structures, and the sub-shielding structure includes a plurality of first shielding wires and a second shielding wire arranged on the same layer as the plurality of first shielding wires and intersecting;
  • the second touch lines and the first shield lines are arranged alternately.
  • the line width of the second touch line, the line width of the first shielding line and the line width of the first touch line Much the same.
  • an embodiment of the present disclosure provides a display device, including the above-mentioned display substrate provided by the embodiment of the present disclosure.
  • the above-mentioned display device provided by the embodiments of the present disclosure further includes a flexible circuit board electrically connected to the display substrate, and the flexible circuit board is located on the opposite side of the display side of the display device. .
  • the display substrate includes a display area, and a first frame area on one side of the display area for binding with a flexible circuit board;
  • the first frame area includes a first fan-out area, a bending area and a second fan-out area arranged in sequence in a direction away from the display area, wherein the first fan-out area is located on the display side, The second fan-out region is located on the opposite side.
  • FIG. 1 is a schematic structural diagram of a display substrate provided by an embodiment of the present disclosure
  • Fig. 2 is a kind of structural schematic diagram of zone Z1 in Fig. 1;
  • FIG. 3 is a schematic structural diagram of the layer where the touch leads in the Z1 area in FIG. 1 are located;
  • Fig. 4 is a schematic structural view of the layer where the first shielding structure is located in the zone Z1 in Fig. 1 ;
  • Fig. 5 is a kind of sectional structure schematic diagram along I-II line in Fig. 2;
  • Fig. 6 is a kind of structural representation of Z2 area in Fig. 1;
  • FIG. 7 is a schematic structural diagram of the layer where the first touch signal line is located in the area Z2 in FIG. 1;
  • Fig. 8 is a schematic structural diagram of the layer where the second shielding structure is located in the zone Z2 in Fig. 1;
  • Fig. 9 is a schematic diagram of a cross-sectional structure along line III-IV in Fig. 1;
  • Fig. 10 is a kind of sectional structure schematic diagram along V-VI line among Fig. 1;
  • Fig. 11 is another kind of cross-sectional structure diagram along line I-II in Fig. 2;
  • FIG. 12 is a schematic structural diagram of the layer where the second touch signal line in the Z1 area in FIG. 1 is located;
  • Fig. 13 is another structural schematic diagram of the Z1 area in Fig. 1;
  • Fig. 14 is another structural schematic diagram of the layer where the first shielding structure is located in the Z1 region in Fig. 1;
  • Fig. 15 is another structural schematic diagram of the Z2 area in Fig. 1;
  • Fig. 16 is another structural schematic diagram of the layer where the second shielding structure is located in the zone Z2 in Fig. 1;
  • Fig. 17 is another structural schematic diagram of the Z1 area in Fig. 1;
  • Fig. 18 is another structural schematic diagram of the layer where the first shielding structure is located in the Z1 area in Fig. 1;
  • Fig. 19 is a schematic cross-sectional structure along line VII-VIII in Fig. 18;
  • Fig. 20 is another structural schematic diagram of the Z2 area in Fig. 1;
  • Fig. 21 is another structural schematic diagram of the layer where the second shielding structure is located in the Z2 area in Fig. 1;
  • Fig. 22 is another kind of sectional structure schematic diagram along line III-IV in Fig. 1;
  • Fig. 23 is another kind of cross-sectional structure diagram along the line V-VI in Fig. 1;
  • FIG. 24 is a schematic structural diagram of a display device provided by an embodiment of the present disclosure.
  • two layers of metal separated by an insulating layer are used to make a touch function layer on the packaging layer of the OLED display module.
  • One layer of metal is a bridge layer (TMA) including a plurality of first sub-touch lines
  • the other layer of metal is a touch layer (TMB) including a plurality of second sub-touch lines
  • the first sub-touch lines It is electrically connected with the second sub-touch line through the through hole penetrating the insulating layer.
  • the first sub-touch line and the second sub-touch line electrically connected to each other form a touch line with a small resistance, which can reduce the loss of touch signals on the touch line, and is beneficial to improve the effect of touch recognition.
  • the present disclosure finds that after the whole machine is assembled, the touch signal and the antenna signal tend to interfere with each other, thus affecting the performance of the whole machine.
  • an embodiment of the present disclosure provides a display substrate, as shown in FIG. 1 to FIG. 5 , including:
  • a base substrate 101, the base substrate 101 includes a display area AA, and a frame area BB surrounding the display area AA;
  • a plurality of first touch lines 102 are located in the frame area BB on at least one side of the display area AA;
  • the insulating layer 103 is located on the side of the layer where the plurality of first touch wires 102 are located away from the substrate 101; optionally, the insulating layer 103 can be an inorganic insulating layer or an organic insulating layer;
  • the shielding structure 104 is located on the side of the insulating layer 103 away from the layer where the multiple first touch lines 102 are located, and the shielding structure 104 is located in the frame area BB on at least one side of the display area AA; in the same frame area BB, the shielding structure 104 is on the lining
  • the orthographic projection on the base substrate 101 overlaps with at least part of the orthographic projection of the first touch line 102 .
  • the touch signal on the first touch line 102 can be separated from the external antenna through the shielding structure 104.
  • the signals are isolated from each other, thereby effectively improving the mutual interference between the touch signal and the antenna signal, thus improving the performance of the whole machine and providing a better user experience.
  • the structure 104 includes a first shielding structure 1041 located in the first frame area B1 , and the plurality of first touch lines 102 includes a plurality of touch leads 1021 located in the first frame area B1 ; in the second fan-out area F2 , the orthographic projection of the first shielding structure 1041 on the base substrate 101 overlaps with the orthographic projections of the plurality of touch leads 1021 , so that the first shielding structure 1041 can be used to protect the touch leads 1021 and prevent the touch leads 1021 from The touch signal is interfered by the antenna signal, and at the same time, the first shielding structure 1041 can effectively shield the touch signal to prevent the touch signal from interfering with the antenna signal.
  • the frame area BB may further include a second frame area opposite to the first frame area B1 area B 2 , and the third frame area B 3 and the fourth frame area B 4 that are opposite and connected to the first frame area B 1 and the second frame area B 2 respectively; wherein, the first frame area B 1 is included in The first fan-out area F 1 , the bending area BD and the second fan-out area F 2 are sequentially arranged in the direction Y away from the display area AA;
  • the shielding structure 104 may include a second shielding structure 1042 and a plurality of first touch lines 102 A plurality of first touch signal lines 1022 may be included, wherein the orthographic projection of the second shielding structure 1042 on the base substrate 101 overlaps with the orthographic projection of the plurality of first touch signal lines 1022 .
  • a light emitting device 105 is arranged in the display area AA.
  • the cathode C of the light emitting device 105 is loaded with a low level (VSS) signal, and the entire surface of the cathode C is set (that is, covers the display area AA and at least part of the frame area BB), the cathode C can well shield the interference of external static signals and the like on the signals inside the display substrate.
  • VSS low level
  • the cathode C is only arranged in the display area AA and does not cover the frame area BB, in the first fan-out area F 1 , the second frame area B 2 , the third frame area B 3 and the fourth frame area B 4
  • the touch signals on the first touch signal lines 1022 provided inside are easily disturbed by static signals.
  • a second shielding structure 1042 overlapping with the first touch signal lines 1022 is provided, that is, The external static signal is shielded by the second shielding structure 1042 , thereby protecting the touch signal from being interfered by the static signal.
  • FIG. 9 to FIG. Insulated first gate metal layer G 1 , second gate metal layer G 2 , first source-drain metal layer SD 1 , second source-drain metal layer SD 2 , bridge layer TMA, and touch layer TMB.
  • the first shielding structure 1041 can be located on the touch layer TMB, and the plurality of touch leads 1021 can be located on the bridging layer TMA; or, the first shielding structure 1041 can be located on the first source-drain metal layer SD 1 and the second source-drain metal layer SD 2 At least one of the bridging layer TMA and the touch layer TMB, the plurality of touch leads 1021 are located on the first gate metal layer G 1 and/or the second gate metal layer G 2 .
  • the second shielding structure 1042 can be located on the touch layer TMB, and the plurality of first touch signal lines 1022 can be located on the bridge layer TMA.
  • the first shielding structure 1041, the second shielding structure 1042, the touch lead 1021 and the touch signal line 1022 By arranging the first shielding structure 1041, the second shielding structure 1042, the touch lead 1021 and the touch signal line 1022 in the existing film layer in the related art, it avoids adding a new film layer, reduces the number of masks, and improves Improve the efficiency of mass production, reduce production costs, and help improve product competitiveness.
  • the above-mentioned second source-drain metal layer SD 2 may also not exist.
  • the display substrate may include first gate metal layers stacked on the base substrate 101 and insulated from each other. layer G 1 , the second gate metal layer G 2 , the first source-drain metal layer SD 1 , the bridge layer TMA and the touch layer TMB.
  • the first gate metal layer G1 and/or the second gate metal layer G2 are provided with fan-out lines of gate lines, and the first source and drain
  • the metal layer SD 1 is provided with a fan-out line of the data line (Data line), so in order to avoid the touch wire 1021 and the data line (Data line) in the first gate metal layer G 1 and/or the second gate metal layer G 2 ) fan-out line short circuit; and to avoid fan-out line short circuit between the first shielding structure 1041 and the data line (Data line) in the first source-drain metal layer SD1, preferably the first gate metal layer G1 and/or Or the touch wire 1021 of the second gate metal layer G 2 and the first shielding structure 1041 located in the first source-drain metal layer SD 1 are disposed in the second fan-out region F 2 , as shown in FIG. 1 .
  • the plurality of first touch signal lines 1022 are located in the bridge layer TMA, and no second shielding structure is arranged above the plurality of first touch signal lines 1022
  • the first fan-out area F1, the second frame area B2, the third frame area B3 and the fourth frame area B4 can be set on the touch layer TMB
  • the plurality of second touch signal lines 1022' inside, at least some of the second touch signal lines 1022' are electrically connected to the first touch signal lines 1022 in one-to-one correspondence, and the wiring method of the second touch signal lines 1022' is preferred
  • the wiring method of the first touch signal line 1022 electrically connected thereto is the same, as shown in FIG. 7 and FIG. 12 .
  • the touch layer TMB may further include grid-like touch driving electrodes Tx and touch sensing electrodes Rx arranged at crossing directions, and the touch driving electrodes Tx One of the touch sensing electrodes Rx is continuously set, and the other is disconnected.
  • FIG. 1 specifically shows that the touch driving electrodes Tx are continuously arranged at the crossing positions, and the touch sensing electrodes Rx are disconnected and arranged at the crossing positions. The disconnected touch sensing electrodes Rx are electrically connected through the bridging electrodes E of the bridging layer TMA.
  • the first touch signal line 1022 and the second touch signal line 1022' may include a touch driving signal line t electrically connected to the touch driving electrode Tx, and a touch sensing line t electrically connected to the touch sensing electrode Rx.
  • Signal line r may be greater than or equal to the light emitting area of the light emitting device 105 (that is, the light emitting area formed by the pixel The pixel opening area defined by the defining layer 121).
  • both sides of the touch driving signal line t and both sides of the touch sensing signal line r can be provided with floating (dummy) traces L, so as to prevent the insulation layer 103 from being wrinkled or even falling off abnormally, resulting in poor touch control.
  • the floating (dummy) wiring L can be routed on at least one of the bridge layer TMA and the touch layer TMB, and in order to enhance the reinforcement effect on the insulating layer 103, the floating (dummy) wiring L can be routed on the bridge layer TMA.
  • the number of wirings can be smaller than the number of wirings in the touch layer TMB, so that part of the floating wiring L close to the touch driving signal line t or the touch sensing signal line r has a double-layer wiring structure in the bridge layer TMA and the touch layer TMB , the other floating traces L away from the touch driving signal line t or the touch sensing signal line r have a single-layer wiring structure in the touch layer TMB.
  • the bridging layer TMA may further include at least A grounding line 106, the shielding structure 104 located on the touch layer TMB and/or the bridge layer TMA can be electrically connected to the grounding line 106, that is, the shielding structure 104 is loaded with a ground signal (GND) through the grounding line 106 to achieve better signal shielding Effect.
  • GND ground signal
  • the first source-drain metal layer SD 1 and/or the second source-drain metal layer SD 2 may also be included
  • the frame area BB at least partially surrounds the low-level signal line 107 arranged in the display area AA; the first shielding structure 1041 located on the first source-drain metal layer SD 1 and/or the second source-drain metal layer SD 2 can communicate with the low-level signal line Line 107 is multiplexed to achieve a better signal shielding effect.
  • the low-level signal line 107 may be electrically connected to the cathode C of the light emitting device 105 to load the cathode C with a low-level signal.
  • the first source-drain metal layer SD 1 and/or the second source-drain metal layer SD 2 may also include A plurality of connection lines 108 of the BD are used for connecting the touch lead 1021 and the first touch signal line 1022 . Since the bending stress of the bending region BD is relatively large, the first source-drain metal layer SD 1 and/or the second source-drain metal layer SD 2 are adopted by changing the layers of the touch lead 1021 and the first touch signal line 1022 The electrical connection of the connection wires 108 can effectively reduce the influence of the bending stress on the touch lead wires 1021 and the first touch signal wires 1022 . Specifically, FIG.
  • FIG. 2 shows the first through hole H 1 for realizing the electrical connection between the touch lead 1021 and the connecting line 108
  • FIG. 6 shows the second through hole H 1 for realizing the electrical connection between the first touch signal line 1022 and the connecting line 108 Hole H2 .
  • the orthographic projection can cover and be larger than the orthographic projection of the plurality of first touch lines 102 and the gap orthographic projection of each first touch line 102, that is, the shielding structure 104 can be arranged in a block shape. This arrangement can not only Right above the first touch line 102 can effectively shield the touch signal and the antenna signal from interfering with each other, and can also have a better shielding effect on the side of the first touch line 102 .
  • the orthographic projections of line 102 are approximately coincident. Specifically, "approximately coincident" means that the first shielding line a just covers the first touch line 102, or the first shielding line a covers most of the corresponding first touch line 102 (for example, covers 90% to 99%).
  • the shielding structure 104 includes a plurality of sub-shielding structures 104', and the sub-shielding structure 104' includes a plurality of first shielding wires a, and a plurality of first shielding wires a the second shielding lines b arranged in the same layer and intersecting; in the extending direction of the first touch lines 102, the second touch lines 109 are arranged alternately with the first shielding lines a; the line width of the second touch lines 109, and The line width of the first shielded line a is approximately the same as the line width of the first touch line 102, that is, the line width of the second touch line 109, and the line width of the first shielded line
  • the above-mentioned display substrate provided by the embodiments of the present disclosure may further include: a pixel driving circuit 110 (only the driving transistor DTFT and the storage capacitor Cst are shown in the figure) , an encapsulation layer 111 and a circular polarizer 112; wherein, the pixel drive circuit 110 is electrically connected to the anode A of the light-emitting device 105 to drive the light-emitting device 105 to perform light-emitting display; the encapsulation layer 111 includes a stacked first inorganic encapsulation layer CVD1, an organic The encapsulation layer IJP and the second inorganic encapsulation layer CVD2 can effectively prevent water and oxygen from corroding the light-emitting material layer EL in the light-emitting device 105, and improve the life of the light-emitting device 105; the circular polarizer 112 includes a linear polarizer and a quarter-wave plate
  • the color filter layer 113 can also be used to reduce the reflection of the anode A/cathode C of the light emitting device 105 and the metal layer of the pixel driving circuit 110 on ambient light, and, compared with the circular polarizer 112, The transmittance of the color filter layer 113 to the light emitted by the light emitting device 105 is greater.
  • the color filter layer 113 includes a black matrix 1131 and a plurality of color resists 1132 separated by the black matrix 1131.
  • the color resists 1132 may include red color resists R, green color resists G, and blue color resists B.
  • the matrix 1131 completely covers the grid lines of the touch driving electrodes Tx and the touch sensing electrodes Rx.
  • the above-mentioned display substrate provided by the embodiment of the present disclosure may further include a buffer layer 114, a first gate insulating layer 115, a second gate insulating layer 116, an interlayer Dielectric layer 117, inorganic layer 118, first planar layer 119, via electrode 120, pixel defining layer 121, support layer 122, second planar layer 123, third planar layer 124, and protective cover 125 (for example ultra-thin glass cover), etc.
  • a buffer layer 114 a first gate insulating layer 115, a second gate insulating layer 116, an interlayer Dielectric layer 117, inorganic layer 118, first planar layer 119, via electrode 120, pixel defining layer 121, support layer 122, second planar layer 123, third planar layer 124, and protective cover 125 (for example ultra-thin glass cover), etc.
  • a buffer layer 114 may further include a buffer layer 114, a first gate insulating layer 115, a second gate
  • the present disclosure also provides a display device, as shown in FIG. 24 , including the above-mentioned display substrate 001 provided by the embodiment of the present disclosure.
  • the display substrate 001 may be a display substrate such as OLED or QLED. Since the problem-solving principle of the display device is similar to the problem-solving principle of the above-mentioned display substrate, the implementation of the display device can refer to the above-mentioned embodiment of the display substrate, and repeated descriptions will not be repeated.
  • the above-mentioned display substrate provided by the embodiments of the present disclosure may further include a flexible circuit board FPC electrically connected to the display substrate 001, and the flexible circuit board FPC is located on the display side of the display device. (that is, the side where the protective cover 125 is located) is on the opposite side.
  • the display substrate 001 includes a display area AA, and a first frame area B 1 on the side of the display area AA for binding with a flexible circuit board FPC; wherein, the first A frame area B 1 includes a first fan-out area F 1 , a bending area BD and a second fan-out area F 2 arranged in sequence in a direction away from the display area AA, wherein the first fan-out area F 1 is located on the display side (that is, the side where the protective cover 125 is located), and the second fan-out region F2 is located on the opposite side of the display side (that is, the side where the protective cover 125 is located), so that the touch leads 1021 in the second fan-out region F2 and the flexible
  • the circuit board FPC is bonded and connected.
  • bending the second fan-out area F2 to the side opposite to the display side ie, the side where the protective cover 125 is located
  • the above-mentioned display devices provided by the embodiments of the present disclosure may be: mobile phones, tablet computers, televisions, monitors, notebook computers, digital photo frames, navigators, smart watches, fitness wristbands, personal digital assistants, etc A product or part showing a function.
  • the display device provided by the embodiments of the present disclosure may also include but not limited to: a radio frequency unit, a network module, an audio output unit, an input unit, a sensor, a display unit, a user input unit, an interface unit, a memory, a processor, and a power supply.
  • a radio frequency unit a radio frequency unit
  • a network module a network module
  • an audio output unit an input unit
  • a sensor a sensor
  • a display unit a user input unit
  • an interface unit a memory
  • a processor a processor
  • a power supply Those skilled in the art can understand that the composition of the above display device does not constitute a limitation on the display device, and the display device may include more or less of the above components,

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Abstract

本公开提供的显示基板及显示装置,包括:衬底基板,该衬底基板包括显示区、以及绕设于显示区的边框区;多条第一触控线,位于显示区至少一侧的边框区内;绝缘层,位于多条第一触控线所在层背离衬底基板的一侧;屏蔽结构,位于绝缘层背离多条第一触控线所在层的一侧,屏蔽结构位于显示区至少一侧的边框区;在同一边框区内,屏蔽结构在衬底基板上的正投影与至少部分第一触控线的正投影相互交叠。

Description

显示基板及显示装置
相关申请的交叉引用
本公开要求在2021年09月14日提交中国专利局、申请号为202111074888.X、申请名称为“显示基板及显示装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本公开涉及显示技术领域,尤其涉及一种显示基板及显示装置。
背景技术
有机电致发光(OLED)显示装置是基于有机电致发光二极管的显示屏。其具备自发光、对比度高、厚度薄、视角广、响应速度快、可用于挠曲性面板、使用温度范围广、构造及制程较简单等优异特性,受到了越来越多的关注,应用前景广阔。相关技术中,采用OLED显示模组内嵌触控模组的方式来整合触控功能,以实现OLED显示装置的显示功能和触控功能一体化。
发明内容
本公开实施例提供的一种显示基板及显示装置,具体方案如下:
一方面,本公开实施例提供了一种显示基板,包括:
衬底基板,所述衬底基板包括显示区、以及绕设于所述显示区的边框区;
多条第一触控线,位于所述显示区至少一侧的所述边框区内;
绝缘层,位于所述多条第一触控线所在层背离所述衬底基板的一侧;
屏蔽结构,位于所述绝缘层背离所述多条第一触控线所在层的一侧,所述屏蔽结构位于所述显示区至少一侧的所述边框区;在同一所述边框区内,所述屏蔽结构在所述衬底基板上的正投影与至少部分所述第一触控线的正投 影相互交叠。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述边框区包括用于与柔性电路板绑定的第一边框区;
所述屏蔽结构包括位于所述第一边框区的第一屏蔽结构,所述多条第一触控线包括位于所述第一边框区的多条触控引线。
在一些实施例中,在本公开实施例提供的上述显示基板中,还包括在所述衬底基板上层叠设置且相互绝缘的桥接层和触控层;
所述第一屏蔽结构位于所述触控层,所述多条触控引线位于所述桥接层。
在一些实施例中,在本公开实施例提供的上述显示基板中,还包括在所述衬底基板上层叠设置且相互绝缘的第一栅金属层、第二栅金属层、第一源漏金属层、第二源漏金属层、桥接层和触控层,其中,
所述第一屏蔽结构位于所述第一源漏金属层、所述第二源漏金属层、所述桥接层和所述触控层中的至少一层,所述多条触控引线位于所述第一栅金属层和/或所述第二栅金属层。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述第一边框区包括在远离所述显示区的方向上依次设置的第一扇出区、弯折区和第二扇出区;
所述第一屏蔽结构和所述多条触控引线位于所述第二扇出区。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述边框区还包括与所述第一边框区相对而置的第二边框区,连接所述第一边框区和所述第二边框区的第三边框区,以及与所述第三边框区相对而置的第四边框区;
在所述第一扇出区、所述第二边框区、所述第三边框区和所述第四边框区内,所述多条第一触控线还包括位于所述桥接层的多条第一触控信号线,所述触控层还包括多条第二触控信号线,至少部分所述第二触控信号线与所述第一触控信号线一一对应电连接。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述边框区包括用于与柔性电路板绑定的第一边框区,与所述第一边框区相对而置的第 二边框区,连接所述第一边框区和所述第二边框区的第三边框区,以及与所述第三边框区相对而置的第四边框区;其中,
所述第一边框区包括在远离所述显示区的方向上依次设置的第一扇出区、弯折区和第二扇出区;
在所述第一扇出区、所述第二边框区、所述第三边框区和所述第四边框区内,所述屏蔽结构包括第二屏蔽结构,所述多条第一触控线包括多条第一触控信号线。
在一些实施例中,在本公开实施例提供的上述显示基板中,还包括在所述衬底基板上层叠设置且相互绝缘的桥接层和触控层;
所述第二屏蔽结构位于所述触控层,所述多条第一触控信号线位于所述桥接层。
在一些实施例中,在本公开实施例提供的上述显示基板中,还包括:位于所述第一扇出区的多条浮空线;
在所述第一扇出区,所述多条第一触控信号线划分为至少一组触控信号线,所述多条浮空线位于所述至少一组触控线的两侧边缘的至少一侧。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述多条浮空线包括位于所述触控层的多条第一浮空线,以及位于所述桥接层的多条第二浮空线;其中,
所述多条第一浮空线的数量大于所述多条第二浮空线的数量,且每条所述第二浮空线在所述衬底基板上的正投影与一条所述第一浮空线的正投影大致重合。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述桥接层还包括在所述第一触控线远离所述显示区的一侧设置的至少一条接地线;
位于所述触控层和/或所述桥接层的所述屏蔽结构与所述接地线电连接。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述第一源漏金属层和/或所述第二源漏金属层还包括在所述边框区至少部分环绕所述显示区设置的低电平信号线;
位于所述第一源漏金属层和/或所述第二源漏金属层的所述第一屏蔽结构与所述低电平信号线复用。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述第一源漏金属层和/或所述第二源漏金属层还包括位于所述弯折区的多条连接线,所述连接线连接所述触控引线和所述第一触控信号线。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述屏蔽结构在所述衬底基板上的正投影覆盖且大于所述多条第一触控线的正投影、以及各所述第一触控线的间隙正投影。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述屏蔽结构包括多条第一屏蔽线、以及与所述多条第一屏蔽线同层且交叉设置的第二屏蔽线,其中,
所述多条第一屏蔽线在所述衬底基板上的正投影与所述多条第一触控线的正投影大致重合。
在一些实施例中,在本公开实施例提供的上述显示基板中,还包括位于所述边框区内的多条第二触控线,所述多条第二触控线与所述屏蔽结构同层、同材料,至少两条所述第二触控线与同一条所述第一触控线电连接;
所述屏蔽结构包括多个子屏蔽结构,所述子屏蔽结构包括多条第一屏蔽线、以及与所述多条第一屏蔽线同层且交叉设置的第二屏蔽线;
在所述第一触控线的延伸方向上,所述第二触控线与所述第一屏蔽线交替设置。
在一些实施例中,在本公开实施例提供的上述显示基板中,所述第二触控线的线宽、以及所述第一屏蔽线的线宽与所述第一触控线的线宽大致相同。
另一方面,本公开实施例提供了一种显示装置,包括本公开实施例提供的上述显示基板。
在一些实施例中,在本公开实施例提供的上述显示装置中,其中,还包括与所述显示基板电连接的柔性电路板,所述柔性电路板位于所述显示装置的显示侧的相对侧。
在一些实施例中,在本公开实施例提供的上述显示装置中,所述显示基板包括显示区,以及在所述显示区一侧用于与柔性电路板绑定的第一边框区;其中,
所述第一边框区包括在远离所述显示区的方向上依次设置的第一扇出区、弯折区和第二扇出区,其中,所述第一扇出区位于所述显示侧,所述第二扇出区位于所述相对侧。
附图说明
图1为本公开实施例提供的显示基板的一种结构示意图;
图2为图1中Z 1区域的一种结构示意图;
图3为图1中Z 1区域的触控引线所在层的结构示意图;
图4为图1中Z 1区域中第一屏蔽结构所在层的一种结构示意图;
图5为沿图2中I-II线的一种剖面结构示意图;
图6为图1中Z 2区域的一种结构示意图;
图7为图1中Z 2区域中第一触控信号线所在层的结构示意图;
图8为图1中Z 2区域中第二屏蔽结构所在层的一种结构示意图;
图9为沿图1中III-IV线的一种剖面结构示意图;
图10为沿图1中V-VI线的一种剖面结构示意图;
图11为沿图2中I-II线的又一种剖面结构示意图;
图12为图1中Z 1区域的第二触控信号线所在层的结构示意图;
图13为图1中Z 1区域的又一种结构示意图;
图14为图1中Z 1区域中第一屏蔽结构所在层的又一种结构示意图;
图15为图1中Z 2区域的又一种结构示意图;
图16为图1中Z 2区域中第二屏蔽结构所在层的又一种结构示意图;
图17为图1中Z 1区域的又一种结构示意图;
图18为图1中Z 1区域中第一屏蔽结构所在层的又一种结构示意图;
图19为沿图18中VII-VIII线的剖面结构示意图;
图20为图1中Z 2区域的又一种结构示意图;
图21为图1中Z 2区域中第二屏蔽结构所在层的又一种结构示意图;
图22为沿图1中III-IV线的又一种剖面结构示意图;
图23为沿图1中V-VI线的又一种剖面结构示意图;
图24为本公开实施例提供的显示装置的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例的附图,对本公开实施例的技术方案进行清楚、完整地描述。需要注意的是,附图中各图形的尺寸和形状不反映真实比例,目的只是示意说明本公开内容。并且自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。显然,所描述的实施例是本公开的一部分实施例,而不是全部的实施例。基于所描述的本公开实施例,本领域普通技术人员在无需创造性劳动的前提下所获得的所有其它实施例,都属于本公开保护的范围。
除非另作定义,此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同,而不排除其他元件或者物件。“内”、“外”、“上”、“下”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也可能相应地改变。
随着主动矩阵有机发光显示器(AMOLED)的快速发展,显示器进入了大屏幕时代,人们对大屏幕的热爱永远不会满足。为了满足人们对大屏幕、窄边框、高分辨率、更轻、更薄的需求,搭载柔性多层结构(Flexible Metal Layer On Cell,FMLOC)工艺的触控显示器在未来的发展中具有重要的意义。
在FMLOC技术中,采用由绝缘层隔开的两层金属,在OLED显示模组的封装层上制作触控功能层。其中一层金属为包括多条第一子触控线的桥接层(TMA),另一层金属为包括多条第二子触控线的触控层(TMB),并且第一子触控线和第二子触控线通过贯穿绝缘层的通孔电连接。这样,相互电连接的第一子触控线和第二子触控线构成一条电阻较小的触控线,可以减少触控信号在触控线上的损耗,利于提高触控识别效果。然而,本公开发现在整机组装后,触控信号易与天线信号等相互干扰,而影响整机使用性能。
为了改善相关技术中存在的上述技术问题,本公开实施例提供了一种显示基板,如图1至图5所示,包括:
衬底基板101,该衬底基板101包括显示区AA、以及绕设于显示区AA的边框区BB;
多条第一触控线102,位于显示区AA至少一侧的边框区BB内;
绝缘层103,位于多条第一触控线102所在层背离衬底基板101的一侧;可选地,绝缘层103可以为无机绝缘层或有机绝缘层;
屏蔽结构104,位于绝缘层103背离多条第一触控线102所在层的一侧,屏蔽结构104位于显示区AA至少一侧的边框区BB;在同一边框区BB内,屏蔽结构104在衬底基板101上的正投影与至少部分第一触控线102的正投影相互交叠。
在本公开实施例提供的上述显示基板中,通过设置与第一触控线102相互交叠的屏蔽结构104,可以通过屏蔽结构104将第一触控线102上的触控信号与外界的天线信号等相互隔离开,从而有效改善了触控信号与天线信号等相互干扰的问题,因此提高了整机使用性能,用户体验感较好。
在一些实施例中,在本公开实施例提供的上述显示基板中,如图1至图4所示,边框区BB可以包括用于与柔性电路板FPC绑定的第一边框区B 1;屏蔽结构104包括位于第一边框区B 1的第一屏蔽结构1041,多条第一触控线102包括位于第一边框区B 1的多条触控引线1021;在第二扇出区F 2内,第一屏蔽结构1041在衬底基板101上的正投影与多条触控引线1021的正投影相互 交叠,从而可以采用第一屏蔽结构1041保护触控引线1021,避免触控引线1021上的触控信号被天线信号等干扰,同时,第一屏蔽结构1041还可有效屏蔽触控信号,避免触控信号干扰天线信号等。
在一些实施例中,在本公开实施例提供的上述显示基板中,如图1、图6至图8所示,边框区BB还可以包括与第一边框区B 1相对而置的第二边框区B 2,以及相对而置且与第一边框区B 1、第二边框区B 2分别连接的第三边框区B 3和第四边框区B 4;其中,第一边框区B 1包括在远离显示区AA的方向Y上依次设置的第一扇出区F 1、弯折区BD和第二扇出区F 2
在第一扇出区F 1、第二边框区B 2、第三边框区B 3和第四边框区B 4内,屏蔽结构104可以包括第二屏蔽结构1042,多条第一触控线102可以包括多条第一触控信号线1022,其中,第二屏蔽结构1042在衬底基板101上的正投影与多条第一触控信号线1022的正投影相互交叠。
如图9和图10所示,本公开中在显示区AA设置有发光器件105,通常发光器件105的阴极C加载低电平(VSS)信号,在阴极C整面设置(即覆盖显示区AA和至少部分边框区BB)的情况下,阴极C可以很好地屏蔽外界静电信号等对显示基板内部各信号的干扰。但是在阴极C仅设置在显示区AA,而不覆盖边框区BB的情况下,在第一扇出区F 1、第二边框区B 2、第三边框区B 3和第四边框区B 4内设置的第一触控信号线1022上的触控信号容易受静电信号的干扰,基于此,在本公开中设置与第一触控信号线1022相互交叠的第二屏蔽结构1042,即可通过第二屏蔽结构1042屏蔽外界静电信号,进而保护触控信号免受静电信号的干扰。
在一些实施例中,在本公开实施例提供的上述显示基板中,如图5、图9至图11所示,本公开实施例提供的显示基板可以包括在衬底基板101上层叠设置且相互绝缘的第一栅金属层G 1、第二栅金属层G 2、第一源漏金属层SD 1、第二源漏金属层SD 2、桥接层TMA和触控层TMB。第一屏蔽结构1041可以位于触控层TMB,多条触控引线1021可以位于桥接层TMA;或者,第一屏蔽结构1041可以位于第一源漏金属层SD 1、第二源漏金属层SD 2、桥接层TMA 和触控层TMB中的至少一层,多条触控引线1021位于第一栅金属层G 1和/或第二栅金属层G 2。另外,第二屏蔽结构1042可以位于触控层TMB,多条第一触控信号线1022可以位于桥接层TMA。
通过将第一屏蔽结构1041、第二屏蔽结构1042、触控引线1021和触控信号线1022设置在相关技术中的现有膜层中,避免了新增膜层,减少了掩膜次数,提高了批量生产的效率,降低了生产成本,利于提高产品的竞争力。
需要说明的是,在一些实施例中,上述第二源漏金属层SD 2也可以不存在,在此情况下,显示基板可以包括在衬底基板101上层叠设置且相互绝缘的第一栅金属层G 1、第二栅金属层G 2、第一源漏金属层SD 1、桥接层TMA和触控层TMB。
另外,相关技术中,在第一扇出区F 1内,第一栅金属层G 1和/或第二栅金属层G 2设置有栅线(Gate line)的扇出走线,第一源漏金属层SD 1设置有数据线(Data line)的扇出走线,因此为了避免在第一栅金属层G 1和/或第二栅金属层G 2内,触控引线1021与数据线(Data line)的扇出走线短接;以及避免在第一源漏金属层SD1内第一屏蔽结构1041与数据线(Data line)的扇出走线短接,优选将位于第一栅金属层G 1和/或第二栅金属层G 2的触控引线1021、以及位于第一源漏金属层SD 1的第一屏蔽结构1041设置在第二扇出区F 2,如图1所示。
在一些实施例中,在本公开实施例提供的上述显示基板中,在多条第一触控信号线1022位于桥接层TMA,且多条第一触控信号线1022上方未设置第二屏蔽结构1042的情况下,为了减小第一触控信号线1022的电阻,可以在触控层TMB设置位于第一扇出区F1、第二边框区B2、第三边框区B3和第四边框区B4内的多条第二触控信号线1022’,至少部分第二触控信号线1022’与第一触控信号线1022一一对应电连接,且优选第二触控信号线1022’的布线方式与其电连接的第一触控信号线1022的布线方式相同,如图7和图12所示。
在一些实施例中,如图1所示,触控层TMB还可以包括延伸方向交叉设 置且具有网格状的触控驱动电极Tx和触控感应电极Rx,并且在交叉位置触控驱动电极Tx和触控感应电极Rx的其中之一连续设置、另一断开设置。具体地,图1中具体示出了触控驱动电极Tx在交叉位置连续设置,触控感应电极Rx在交叉位置断开设置。断开设置的触控感应电极Rx通过桥接层TMA的桥接电极E电连接。相应地,第一触控信号线1022和第二触控信号线1022’可以包括与触控驱动电极Tx电连接的触控驱动信号线t,以及与触控感应电极Rx电连接的触控感应信号线r。另外,如图9和图10所示,为了不影响发光器件105的出光效率,触控驱动电极Tx和触控感应电极Rx的网孔K可以大于或等于发光器件105的发光区(即由像素界定层121限定的像素开口区域)。
在一些实施例中,如图6至图8所示,在第一扇出区F1内,触控驱动信号线t的两侧、以及触控感应信号线r的两侧均可以设置有浮空(dummy)走线L,以防止绝缘层103发生褶皱甚至异常脱落而导致触控不良。浮空(dummy)走线L可以在桥接层TMA和触控层TMB中的至少一层进行布线,并且为了增强对绝缘层103的加固效果,浮空(dummy)走线L在桥接层TMA的布线数量可以小于在触控层TMB的布线数量,使得靠近触控驱动信号线t或触控感应信号线r的部分浮空走线L具有在桥接层TMA和触控层TMB的双层布线结构,远离触控驱动信号线t或触控感应信号线r的其余浮空走线L具有在触控层TMB的单层布线结构。
在一些实施例中,在本公开实施例提供的上述显示基板中,如图1至图8所示,桥接层TMA还可以包括在第一触控线102远离显示区AA的一侧设置的至少一条接地线106,位于触控层TMB和/或桥接层TMA的屏蔽结构104可以与接地线106电连接,即屏蔽结构104通过接地线106加载接地信号(GND),以实现较好的信号屏蔽效果。
在一些实施例中,在本公开实施例提供的上述显示基板中,如图5和图11所示,第一源漏金属层SD 1和/或第二源漏金属层SD 2还可以包括在边框区BB至少部分环绕显示区AA设置的低电平信号线107;位于第一源漏金属层 SD 1和/或第二源漏金属层SD 2的第一屏蔽结构1041可以与低电平信号线107复用,以实现较好的信号屏蔽效果。在具体实施时,该低电平信号线107可以与发光器件105的阴极C电连接,以为阴极C加载低电平信号。
在一些实施例中,在本公开实施例提供的上述显示基板中,如图1所示,第一源漏金属层SD 1和/或第二源漏金属层SD 2还可以包括位于弯折区BD的多条连接线108,该连接线108用于连接触控引线1021和第一触控信号线1022。由于弯折区BD的弯折应力较大,通过将触控引线1021和第一触控信号线1022换层至采用第一源漏金属层SD 1和/或第二源漏金属层SD 2中的连接线108进行电连接,可以有效减小弯折应力对触控引线1021和第一触控信号线1022的影响。具体地,图2示出了实现触控引线1021与连接线108电连接的第一通孔H 1,图6示出了实现第一触控信号线1022与连接线108电连接的第二通孔H 2
在一些实施例中,在本公开实施例提供的上述显示基板中,如图3、图13和图14,以及图7、图15和图16所示,屏蔽结构104在衬底基板101上的正投影可以覆盖且大于多条第一触控线102的正投影、以及各第一触控线102的间隙正投影,即屏蔽结构104可以是块状设置,这种设置方式,不仅可以在第一触控线102的正上方有效屏蔽触控信号与天线信号等相互干扰,而且可以在第一触控线102的侧边同样起到较好的屏蔽效果。
在一些实施例中,在本公开实施例提供的上述显示基板中,为了实现较好的屏蔽效果,如图2至图4、图6至图8所示,屏蔽结构104可以包括多条第一屏蔽线a、以及与多条第一屏蔽线a同层且交叉设置的第二屏蔽线b,其中,多条第一屏蔽线a在衬底基板101上的正投影与多条第一触控线102的正投影大致重合。具体而言,“大致重合”指第一屏蔽线a恰好遮挡第一触控线102,或者第一屏蔽线a遮挡所对应第一触控线102的绝大部分(例如遮挡90%~99%)。
在一些实施例中,在本公开实施例提供的上述显示基板中,为了兼顾第一触控线102的电阻、以及屏蔽结构104的屏蔽作用,如图3、图17至图19, 以及图7、图20和图21所示,还可以包括位于边框区BB内的多条第二触控线109,多条第二触控线109与屏蔽结构104同层、同材料,至少两条第二触控线109与同一条第一触控线102电连接;屏蔽结构104包括多个子屏蔽结构104’,子屏蔽结构104’包括多条第一屏蔽线a、以及与多条第一屏蔽线a同层且交叉设置的第二屏蔽线b;在第一触控线102的延伸方向上,第二触控线109与第一屏蔽线a交替设置;第二触控线109的线宽、以及第一屏蔽线a的线宽与第一触控线102的线宽大致相同,即第二触控线109的线宽、以及第一屏蔽线a的线宽与第一触控线102的线宽可以恰好相同,也可能有一定的偏差,例如差值可以占第一触控线102的线宽的5%范围内。
在一些实施例中,在本公开实施例提供的上述显示基板中,如图9和图10所示,还可以包括:像素驱动电路110(图中仅示出了驱动晶体管DTFT和存储电容Cst)、封装层111和圆偏光片112;其中,像素驱动电路110与发光器件105的阳极A电连接,以驱动发光器件105进行发光显示;封装层111包括层叠设置的第一无机封装层CVD1、有机封装层IJP和第二无机封装层CVD2,可以有效避免水氧对发光器件105中发光材料层EL的腐蚀,提高发光器件105的寿命;圆偏光片112包括线偏光层和四分之一波片层,可以降低发光器件105的阳极A/阴极C、以及像素驱动电路110的金属层(例如G 1、G 2、SD 1和SD 2等)对环境光的反射,在一些实施例中,如图22和图23所示,还可以采用彩膜层113减少发光器件105的阳极A/阴极C、以及像素驱动电路110的金属层对环境光的反射,并且,相较于圆偏光片112,彩膜层113对发光器件105的发射光线的透过率更大。可选地,彩膜层113包括黑矩阵1131、以及被黑矩阵1131隔开的多个色阻1132,色阻1132可以包括红光色阻R、绿光色阻G和蓝光色阻B,黑矩阵1131完全覆盖触控驱动电极Tx和触控感应电极Rx的网格线。
此外,如图9、图10、图22和图23所示,本公开实施例提供的上述显示基板,还可以包括缓冲层114、第一栅绝缘层115、第二栅绝缘层116、层间介电层117、无机层118、第一平坦层119、转接电极120、像素界定层121、 支撑层122、第二平坦层123、第三平坦层124、以及保护盖板125(例如超薄玻璃盖板)等。对于显示基板的其它必不可少的组成部分均为本领域的普通技术人员应该理解具有的,在此不做赘述,也不应作为对本公开的限制。
基于同一发明构思,本公开还提供了一种显示装置,如图24所示,包括本公开实施例提供的上述显示基板001,该显示基板001可以为OLED、QLED等显示基板。由于该显示装置解决问题的原理与上述显示基板解决问题的原理相似,因此,该显示装置的实施可以参见上述显示基板的实施例,重复之处不再赘述。
在一些实施例中,在本公开实施例提供的上述显示基板中,如图24所示,还可以包括与显示基板001电连接的柔性电路板FPC,该柔性电路板FPC位于显示装置的显示侧(即保护盖板125所在侧)的相对侧。
在一些实施例中,如图1和图24所示,显示基板001包括显示区AA,以及在显示区AA一侧用于与柔性电路板FPC绑定的第一边框区B 1;其中,第一边框区B 1包括在远离显示区AA的方向上依次设置的第一扇出区F 1、弯折区BD和第二扇出区F 2,其中,第一扇出区F 1位于显示侧(即保护盖板125所在侧),第二扇出区F 2位于显示侧(即保护盖板125所在侧)的相对侧,以利于第二扇出区F 2内的触控引线1021与柔性电路板FPC进行绑定连接。并且,将第二扇出区F 2弯折向显示侧(即保护盖板125所在侧)的相对侧,可以有效减小第二扇出区F 2所在第一边框区B 1的宽度。
在一些实施例中,本公开实施例提供的上述显示装置可以为:手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪、智能手表、健身腕带、个人数字助理等任何具有显示功能的产品或部件。本公开实施例提供的显示装置还可以包括但不限于:射频单元、网络模块、音频输出单元、输入单元、传感器、显示单元、用户输入单元、接口单元、存储器、处理器、以及电源等部件。本领域技术人员可以理解,上述显示装置的组成并不构成对显示装置的限定,显示装置可以包括上述更多或更少的部件,或者组合某些部件,或者不同的部件布置。
尽管已描述了本公开的优选实施例,但本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开实施例的精神和范围。这样,倘若本公开实施例的这些修改和变型属于本公开权利要求及其等同技术的范围之内,则本公开也意图包含这些改动和变型在内。

Claims (20)

  1. 一种显示基板,其中,包括:
    衬底基板,所述衬底基板包括显示区、以及绕设于所述显示区的边框区;
    多条第一触控线,位于所述显示区至少一侧的所述边框区内;
    绝缘层,位于所述多条第一触控线所在层背离所述衬底基板的一侧;
    屏蔽结构,位于所述绝缘层背离所述多条第一触控线所在层的一侧,所述屏蔽结构位于所述显示区至少一侧的所述边框区;在同一所述边框区内,所述屏蔽结构在所述衬底基板上的正投影与至少部分所述第一触控线的正投影相互交叠。
  2. 如权利要求1所述的显示基板,其中,所述边框区包括用于与柔性电路板绑定的第一边框区;
    所述屏蔽结构包括位于所述第一边框区的第一屏蔽结构,所述多条第一触控线包括位于所述第一边框区的多条触控引线。
  3. 如权利要求2所述的显示基板,其中,还包括在所述衬底基板上层叠设置且相互绝缘的桥接层和触控层;
    所述第一屏蔽结构位于所述触控层,所述多条触控引线位于所述桥接层。
  4. 如权利要求2所述的显示基板,其中,还包括在所述衬底基板上层叠设置且相互绝缘的第一栅金属层、第二栅金属层、第一源漏金属层、第二源漏金属层、桥接层和触控层,其中,
    所述第一屏蔽结构位于所述第一源漏金属层、所述第二源漏金属层、所述桥接层和所述触控层中的至少一层,所述多条触控引线位于所述第一栅金属层和/或所述第二栅金属层。
  5. 如权利要求4所述的显示基板,其中,所述第一边框区包括在远离所述显示区的方向上依次设置的第一扇出区、弯折区和第二扇出区;
    所述第一屏蔽结构和所述多条触控引线位于所述第二扇出区。
  6. 如权利要求5所述的显示基板,其中,所述边框区还包括与所述第一边框区相对而置的第二边框区,连接所述第一边框区和所述第二边框区的第三边框区,以及与所述第三边框区相对而置的第四边框区;
    在所述第一扇出区、所述第二边框区、所述第三边框区和所述第四边框区内,所述多条第一触控线还包括位于所述桥接层的多条第一触控信号线,所述触控层还包括位于多条第二触控信号线,至少部分所述第二触控信号线与所述第一触控信号线一一对应电连接。
  7. 如权利要求1~6任一项所述的显示基板,其中,所述边框区包括用于与柔性电路板绑定的第一边框区,与所述第一边框区相对而置的第二边框区,连接所述第一边框区和所述第二边框区的第三边框区,以及与所述第三边框区相对而置的第四边框区;其中,
    所述第一边框区包括在远离所述显示区的方向上依次设置的第一扇出区、弯折区和第二扇出区;
    在所述第一扇出区、所述第二边框区、所述第三边框区和所述第四边框区内,所述屏蔽结构包括第二屏蔽结构,所述多条第一触控线包括多条第一触控信号线。
  8. 如权利要求7所述的显示基板,其中,还包括在所述衬底基板上层叠设置且相互绝缘的桥接层和触控层;
    所述第二屏蔽结构位于所述触控层,所述多条第一触控信号线位于所述桥接层。
  9. 如权利要求8所述的显示基板,其中,还包括:位于所述第一扇出区的多条浮空线;
    在所述第一扇出区,所述多条第一触控信号线划分为至少一组触控信号线,所述多条浮空线位于所述至少一组触控线的两侧边缘的至少一侧。
  10. 如权利要求9所述的显示基板,其中,所述多条浮空线包括位于所述触控层的多条第一浮空线,以及位于所述桥接层的多条第二浮空线;其中,
    所述多条第一浮空线的数量大于所述多条第二浮空线的数量,且每条所述第二浮空线在所述衬底基板上的正投影与一条所述第一浮空线的正投影大致重合。
  11. 如权利要求3~6、8~10任一项所述的显示基板,其中,所述桥接层还包括在所述第一触控线远离所述显示区的一侧设置的至少一条接地线;
    位于所述触控层和/或所述桥接层的所述屏蔽结构与所述接地线电连接。
  12. 如权利要求4所述的显示基板,其中,所述第一源漏金属层和/或所述第二源漏金属层还包括在所述边框区至少部分环绕所述显示区设置的低电平信号线;
    位于所述第一源漏金属层和/或所述第二源漏金属层的所述第一屏蔽结构与所述低电平信号线复用。
  13. 如权利要求6所述的显示基板,其中,所述第一源漏金属层和/或所述第二源漏金属层还包括位于所述弯折区的多条连接线,所述连接线连接所述触控引线和所述第一触控信号线。
  14. 如权利要求1~13任一项所述的显示基板,其中,所述屏蔽结构在所述衬底基板上的正投影覆盖且大于所述多条第一触控线的正投影、以及各所述第一触控线的间隙正投影。
  15. 如权利要求1~13任一项所述的显示基板,其中,所述屏蔽结构包括多条第一屏蔽线、以及与所述多条第一屏蔽线同层且交叉设置的第二屏蔽线,其中,
    所述多条第一屏蔽线在所述衬底基板上的正投影与所述多条第一触控线的正投影大致重合。
  16. 如权利要求1~13任一项所述的显示基板,其中,还包括位于所述边框区内的多条第二触控线,所述多条第二触控线与所述屏蔽结构同层、同材料,至少两条所述第二触控线与同一条所述第一触控线电连接;
    所述屏蔽结构包括多个子屏蔽结构,所述子屏蔽结构包括多条第一屏蔽线、以及与所述多条第一屏蔽线同层且交叉设置的第二屏蔽线;
    在所述第一触控线的延伸方向上,所述第二触控线与所述第一屏蔽线交替设置。
  17. 如权利要求16所述的显示基板,其中,所述第二触控线的线宽、以及所述第一屏蔽线的线宽与所述第一触控线的线宽大致相同。
  18. 一种显示装置,其中,包括如权利要求1~17任一项所述的显示基板。
  19. 如权利要求18所述的显示装置,其中,还包括与所述显示基板电连接的柔性电路板,所述柔性电路板位于所述显示装置的显示侧的相对侧。
  20. 如权利要求19所述的显示装置,其中,所述显示基板包括显示区,以及在所述显示区一侧用于与柔性电路板绑定的第一边框区;其中,
    所述第一边框区包括在远离所述显示区的方向上依次设置的第一扇出区、弯折区和第二扇出区,其中,所述第一扇出区位于所述显示侧,所述第二扇出区位于所述相对侧。
PCT/CN2022/114047 2021-09-14 2022-08-22 显示基板及显示装置 WO2023040596A1 (zh)

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CN112510064A (zh) * 2019-09-16 2021-03-16 三星显示有限公司 显示设备
CN113629039A (zh) * 2021-07-20 2021-11-09 武汉华星光电半导体显示技术有限公司 柔性显示面板及显示装置
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CN204731755U (zh) * 2015-06-15 2015-10-28 上海天马微电子有限公司 一种阵列基板和一种触控显示装置
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