WO2024065162A1 - 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
WO2024065162A1
WO2024065162A1 PCT/CN2022/121640 CN2022121640W WO2024065162A1 WO 2024065162 A1 WO2024065162 A1 WO 2024065162A1 CN 2022121640 W CN2022121640 W CN 2022121640W WO 2024065162 A1 WO2024065162 A1 WO 2024065162A1
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WIPO (PCT)
Prior art keywords
distance
touch
line
lines
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/121640
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English (en)
French (fr)
Inventor
王威
陈天赐
张毅
代俊秀
罗昶
王思雨
王裕
文平
曾扬
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Publication date
Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US18/294,319 priority Critical patent/US12379801B2/en
Priority to PCT/CN2022/121640 priority patent/WO2024065162A1/zh
Priority to CN202280003304.6A priority patent/CN118103805A/zh
Publication of WO2024065162A1 publication Critical patent/WO2024065162A1/zh
Anticipated expiration legal-status Critical
Priority to US19/219,539 priority patent/US20250284358A1/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes

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. They have excellent characteristics such as self-luminescence, high contrast, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, simple structure and process, etc., and have attracted more and more attention and broad application prospects.
  • the touch function is integrated by embedding the touch module in the OLED display module to realize the integration of the display function and the touch function of the OLED display device.
  • the display substrate and display device provided by the present disclosure are specifically described as follows:
  • an embodiment of the present disclosure provides a display substrate, comprising:
  • a base substrate comprising a display area and a frame area located on at least one side of the display area;
  • a plurality of touch lines are located in the frame area, the plurality of touch lines include a plurality of touch drive lines and a plurality of touch sensing lines, a first distance exists between two adjacent touch drive lines among the plurality of touch drive lines, a second distance exists between two adjacent touch sensing lines among the plurality of touch sensing lines, a third distance exists between the plurality of touch drive lines and the plurality of touch sensing lines, the first distance is substantially equal to the second distance, and the third distance is greater than the first distance and the second distance.
  • a blank space is provided between the plurality of touch driving lines and the plurality of touch sensing lines.
  • the display substrate provided in the embodiments of the present disclosure further includes at least one shielding line located between the plurality of touch driving lines and the plurality of touch sensing lines.
  • the line width of the shielding line is greater than or equal to 2.5 times the first distance and less than or equal to 12.5 times the first distance.
  • the fourth distance between the at least one shielding line and the multiple touch driving lines there is a fifth distance between the at least one shielding line and the multiple touch sensing lines, and the fourth distance and the fifth distance are respectively greater than or equal to the first distance and less than or equal to 12.5 times of the first distance.
  • the number of the at least one shielding line is 1, and the fourth distance and the fifth distance are respectively greater than the line width of the shielding line.
  • the number of the at least one shielding line is a positive integer, and the fourth distance and the fifth distance are respectively smaller than the line width of the shielding line.
  • the number of the at least one shielding line is greater than or equal to 2, there is a sixth distance between two adjacent shielding lines, and the sixth distance, the fourth distance, and the fifth distance are substantially equal.
  • the number of the at least one shielding line is greater than or equal to 3, and the fourth distance, the fifth distance, and the sixth distance are respectively substantially equal to the first distance.
  • the line width of the shielding line is negatively correlated with the number of the at least one shielding line.
  • the frame area includes a first frame area located at one side of the display area, a second frame area opposite to the first frame area, and a third frame area and a fourth frame area respectively connected to the first frame area and the second frame area, wherein the first frame area includes a first fan-out area, a bending area, and a second fan-out area sequentially arranged in a direction away from the display area;
  • At least one of the shielding lines includes a main body and at least two branch parts.
  • the main body and the at least two branch parts of the same shielding line are integrally arranged, the main body is located in the second fan-out area and the bending area, and the at least two branch parts are located in at least part of the first fan-out area, the second border area, the third border area and the fourth border area.
  • the line width of the main body portion is approximately equal to 2.5 times of the first distance.
  • the seventh distance and the eighth distance are respectively greater than or equal to the first distance and less than or equal to 4.5 times of the first distance.
  • the line width of the branch portion is greater than or equal to 2.5 times the first distance and less than or equal to 12.5 times the first distance.
  • the ninth distance between the branch portion and the multiple touch driving lines there is a tenth distance between the branch portion and the multiple touch sensing lines, and the ninth distance and the tenth distance are respectively greater than or equal to the first distance and less than or equal to 12.5 times of the first distance.
  • the touch driving line and/or the touch sensing line located on at least one side of the main body portion includes: a first touch portion, a second touch portion, and a third touch portion connected in sequence in a direction away from the display area, wherein:
  • the eleventh distance is approximately equal to the first distance
  • the twelfth distance is greater than the first distance and less than 4.5 times of the first distance
  • the thirteenth distance is approximately equal to 4.5 times of the first distance.
  • the display substrate provided in the embodiments of the present disclosure further includes at least one grounding line located between the plurality of touch driving lines and the plurality of touch sensing lines, and the grounding line and the shielding line are independently arranged.
  • the grounding lines and the shielding lines are alternately arranged between the plurality of touch driving lines and the plurality of touch sensing lines.
  • At least a portion of the shielding lines are disposed adjacent to the plurality of touch driving lines compared to the at least one grounding line.
  • the third distance is greater than or equal to 4.5 times the first distance and less than or equal to 37.5 times the first distance.
  • the line width of each of the touch lines is substantially equal to 2.5 times of the first distance.
  • an embodiment of the present disclosure provides a display device, including the above-mentioned display substrate provided by an embodiment of the present disclosure.
  • the display device provided in 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 side opposite to 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 the flexible circuit board;
  • the first border area includes a first fan-out area, a bending area, and a second fan-out area which are sequentially arranged in a direction away from the display area, wherein the first fan-out area is located at the display side, and the second fan-out area is located at the opposite side.
  • FIG1 is a schematic structural diagram of a display substrate provided in an embodiment of the present disclosure.
  • FIG2 is a schematic diagram of the enlarged structure of the Z1 region in FIG1;
  • FIG3 is another schematic diagram of the structure of a display substrate provided in an embodiment of the present disclosure.
  • FIG4 is a schematic diagram of an enlarged structure of the Z2 region in FIG3;
  • FIG5 is another enlarged structural schematic diagram of the Z2 region in FIG3;
  • FIG6 is another enlarged structural schematic diagram of the Z2 region in FIG3 ;
  • FIG7 is another enlarged structural schematic diagram of the Z2 region in FIG3;
  • FIG8 is another enlarged structural schematic diagram of the Z2 region in FIG3;
  • FIG9 is another enlarged structural schematic diagram of the Z2 region in FIG3 ;
  • FIG10 is another enlarged structural schematic diagram of the Z2 region in FIG3 ;
  • FIG11 is another enlarged structural schematic diagram of the Z2 region in FIG3 ;
  • FIG12 is a diagram showing the relationship between the number of shielding wires and the shielding effect provided by an embodiment of the present disclosure
  • FIG13 is a schematic diagram of the enlarged structure of the Z3 region in FIG3 ;
  • FIG14 is a schematic diagram of the enlarged structure of the Z4 region in FIG3 ;
  • FIG15 is a schematic diagram of the enlarged structure of the Z5 region in FIG3;
  • FIG16 is a schematic diagram of the enlarged structure of the Z6 region in FIG15;
  • FIG17 is a schematic diagram of the enlarged structure of the Z7 region in FIG15;
  • FIG18 is a schematic diagram of a structure in which a shielding line led out from a pin of a flexible circuit board forms three branches according to an embodiment of the present disclosure
  • FIG19 is a schematic diagram of the enlarged structure of the Z8 region in FIG3;
  • FIG20 is another enlarged structural schematic diagram of the Z2 region in FIG3 ;
  • FIG21 is another enlarged structural schematic diagram of the Z2 region in FIG3 ;
  • FIG22 is another enlarged structural schematic diagram of the Z2 region in FIG3 ;
  • FIG23 is another enlarged structural schematic diagram of the Z2 region in FIG3 ;
  • FIG. 24 is a schematic diagram of the structure of a display device provided in an embodiment of the present disclosure.
  • the metal mesh layer Metal Mesh
  • the other layer is the bridge layer.
  • the metal mesh is located in the display area AA, and the metal mesh can be divided into touch drive electrodes and touch sensing electrodes in the horizontal and vertical directions.
  • one of the touch drive electrode and the touch sensing electrode is connected to each other, and the other is connected through the bridge layer. Therefore, there is no need for an external touch control module (TSP), which can reduce the thickness of the screen, which is conducive to folding; at the same time, there is no fitting tolerance, which can reduce the width of the frame.
  • TSP external touch control module
  • touch driving lines electrically connected to the touch driving electrodes and touch sensing lines connected to the touch sensing electrodes are arranged in the frame area around the display area AA.
  • the distance between the touch driving line and the touch sensing line is the same as or similar to the distance between two adjacent touch driving lines and the distance between two adjacent touch sensing lines, resulting in a large parasitic capacitance between the touch driving line and the touch sensing line, causing the touch driving signal on the touch driving line and the sensing signal on the touch sensing line to interfere with each other, thereby affecting the touch performance.
  • the embodiment of the present disclosure provides a display substrate, as shown in FIGS. 1 to 4 , including:
  • a base substrate 101 includes a display area AA and a frame area (eg, B1 , B2 , B3 , B4 ) located on at least one side of the display area AA;
  • a frame area eg, B1 , B2 , B3 , B4
  • a plurality of touch lines 102 are located in a border area (for example, B1 , B2 , B3 , and B4 ).
  • the plurality of touch lines 102 include a plurality of touch driving lines Tx and a plurality of touch sensing lines Rx.
  • a first distance d1 is provided between two adjacent touch driving lines Tx among the plurality of touch driving lines Tx.
  • a second distance d2 is provided between two adjacent touch sensing lines Rx among the plurality of touch sensing lines Rx.
  • a third distance d3 is provided between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole.
  • the first distance d1 is substantially equal to (i.e., equal to or within a 5% error range caused by factors such as manufacturing process and measurement) the second distance d2 , and the third distance d3 is greater than the first distance d1 and the second distance d2 .
  • the third distance d 3 between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole is set to be greater than the first distance d 1 between two adjacent touch driving lines Tx and the second distance d 2 between two adjacent touch sensing lines Rx, so that the third distance d 3 between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole is increased, thereby reducing the parasitic capacitance between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole, thereby reducing the interference of the parasitic capacitance on the touch driving signal of the touch driving line Tx and the touch sensing signal of the touch sensing line Rx, and improving the touch performance.
  • the third distance d3 can be set to be greater than or equal to 4.5 times the first distance d1 and less than or equal to 37.5 times the first distance d1 .
  • the third distance d3 is 4.5 times, 14.5 times, 25 times, 37.5 times, etc. of the first distance d1 .
  • the first distance d1 is 4 ⁇ m
  • the third distance d3 is 18 ⁇ m, 58 ⁇ m, 100 ⁇ m, 150 ⁇ m, etc.
  • the third distance d3 between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole and the first distance d1 between two adjacent touch driving lines Tx satisfy the above-mentioned size relationship, not only can the interference caused by the parasitic capacitance be well reduced, but also the space of the border area (for example, B1 , B2 , B3 , B4 ) can be fully utilized, so that the width of the border area (for example, B1 , B2 , B3 , B4 ) will not be too wide due to the third distance d3 being too large, that is, the narrow border design can still be satisfied.
  • the space of the border area for example, B1 , B2 , B3 , B4
  • a blank space may be provided between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole.
  • there is no wiring between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole and the parasitic capacitance between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole is reduced by simply increasing the third distance d3 between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole.
  • the present disclosure provides parasitic capacitances in two cases where the line length of the touch driving line Tx is 100 ⁇ m, the line width w2 of the touch driving line Tx is 10 ⁇ m, the line length of the touch sensing line Rx is 100 ⁇ m , the line width w3 of the touch sensing line Rx is 10 ⁇ m, and the third distance d3 between the touch driving line Tx and the touch sensing line Rx is 4 ⁇ m and 18 ⁇ m, respectively.
  • Results show that when the third distance d3 is 4 ⁇ m, the parasitic capacitance is 4.55 femtofarads (fF), and when the third distance d3 is 18 ⁇ m, the parasitic capacitance is 1.54 femtofarads (fF). It can be seen that by increasing the third distance d3 to 18 ⁇ m, the parasitic capacitance is reduced by approximately 66% compared to the solution where the third distance d3 is 4 ⁇ m.
  • At least one shielding line 103 located between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole may be further included, that is, at least one shielding line 103 may be arranged within the third distance d3 between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole, so that the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole may be isolated from each other by the shielding line 103, and the mutual interference between the touch driving signals of the touch driving lines Tx and the touch sensing signals of the touch sensing lines Rx may be effectively shielded, which is helpful to improve the touch performance.
  • the line width w 1 of the shielding line 103 may be greater than or equal to 2.5 times the first distance d 1 and less than or equal to 12.5 times the first distance d 1.
  • the shielding line 103 within this width range may well shield and isolate the touch driving signal of the touch driving line Tx and the touch sensing signal of the touch sensing line Rx on both sides thereof, thereby avoiding mutual interference between the touch driving signal and the touch sensing signal.
  • the line width w 1 of the shielding line 103 may be equal to 2.5 times, 3.8 times, 5 times, 7 times, 8.75 times, 12.5 times, etc. of the first distance d 1.
  • the first distance d 1 is 4 ⁇ m
  • the line width w 1 of the shielding line 103 may be 10 ⁇ m, 15.2 ⁇ m, 20 ⁇ m, 28 ⁇ m, 35 ⁇ m, 50 ⁇ m, etc.
  • the line width of each touch line 102 (e.g., the line width w 2 of the touch drive line Tx, the line width w 3 of the touch sensing line Rx) can be approximately equal to (i.e., equal to or within a 5% error range caused by factors such as manufacturing process and measurement) 2.5 times the first distance d 1. Under this line width, the resistance of each touch line 102 is small and the risk of disconnection of the touch line 102 due to being too thin can be effectively reduced.
  • the first distance d 1 is 4 ⁇ m
  • the line width w 2 of the touch drive line Tx is 10 ⁇ m respectively.
  • the line width w 3 of the touch sensing line Rx are 10 ⁇ m respectively.
  • the line width w1 of the shielding line 103 is greater than or equal to 2.5 times the first distance d1 and less than or equal to 12.5 times the first distance d1 ”
  • the line width w1 of the shielding line 103 is greater than or equal to the line width of the touch line 102 (for example, the line width w2 of the touch driving line Tx and the line width w3 of the touch sensing line Rx).
  • the line width w1 of the shielding line 103 can be at most equal to 5 times the line width of the touch line 102 (for example, the line width w2 of the touch driving line Tx and the line width w3 of the touch sensing line Rx).
  • a fourth distance d 4 is provided between the at least one shielding line 103 as a whole and the plurality of touch driving lines Tx as a whole
  • a fifth distance d 5 is provided between the at least one shielding line 103 as a whole and the plurality of touch sensing lines Rx as a whole.
  • the fourth distance d 4 and the fifth distance d 5 may be respectively greater than or equal to the first distance d 1 and less than or equal to 12.5 times of the first distance d 1.
  • the fourth distance d 4 and the fifth distance d 5 are respectively equal to the first distance d 1 , both the short circuit between the shielding line 103 and the touch driving line Tx and the short circuit between the shielding line 103 and the touch sensing line Rx can be avoided; when the fourth distance d 4 and the fifth distance d 5 are respectively equal to the first distance d 1 and equal to 12.5 times of the first distance d 1 , both the effects of narrow frame and parasitic capacitance interference prevention can be taken into account.
  • the fourth distance d4 and the fifth distance d5 may be 1 times, 2.5 times, 6 times, 12.5 times, etc. of the first distance d1 , respectively.
  • the first distance d1 is 4 ⁇ m
  • the fourth distance d4 and the fifth distance d5 are 4 ⁇ m, 10 ⁇ m, 24 ⁇ m, 50 ⁇ m, etc., respectively.
  • the line width of a single touch line 102 (e.g., the line width w 2 of the touch driving line Tx, the line width w 3 of the touch sensing line Rx), the third distance d 3 between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole, the line width w 1 of a single shielding line 103, the fourth distance d 4 between at least one shielding line 103 as a whole and the plurality of touch driving lines Tx as a whole, and the fifth distance d 5 between at least one shielding line 103 as a whole and the plurality of touch sensing lines Rx as a whole may be different in different regions of the border region (e.g., B 1 , B 2 , B 3 , B 4 ).
  • the size relationship between the various related parameters defined in the present disclosure can be regarded as a definition of the size relationship between the touch driving lines Tx, the touch sensing lines Rx,
  • the number of shielding lines 103 contained in the at least one shielding line 103 as a whole may be 1.
  • a fourth distance d 4 between the shielding line 103 as a whole and the plurality of touch driving lines Tx as a whole, and a fifth distance d 5 between the shielding line 103 and the plurality of touch sensing lines Rx as a whole may be respectively greater than the line width w 1 of the shielding line 103.
  • the number of at least one shielding line 103 is a positive integer (for example, 1, 2, 3, 4, 5, etc.), in which case, the fourth distance d 4 between the at least one shielding line 103 as a whole and the plurality of touch driving lines Tx as a whole, and the fifth distance d 5 between the at least one shielding line 103 as a whole and the plurality of touch sensing lines Rx as a whole can be respectively smaller than the line width w 1 of the shielding line 103.
  • the line width w 1 of the shielding line 103 can be set to be larger than the fourth distance d 4 and the fifth distance d 5 to ensure that the line width w 1 of the shielding line 103 is larger, so that the mutual interference between the touch driving signal of the touch driving line Tx and the touch sensing signal of the touch sensing line Rx can be shielded to a greater extent by the at least one shielding line 103 as a whole.
  • the number of shielding wires 103 is 1, the fourth distance d4 and the fifth distance d5 are 4 ⁇ m respectively, and the line width w1 of the shielding wire 103 is 10 ⁇ m; in FIG6 , the number of shielding wires 103 is 1, the fourth distance d4 and the fifth distance d5 are 4 ⁇ m respectively, and the line width w1 of the shielding wire 103 is 50 ⁇ m; in FIG7 , the number of shielding wires 103 is 1, the fourth distance d4 and the fifth distance d5 are 25 ⁇ m respectively, and the line width w1 of the shielding wire 103 is 50 ⁇ m; in FIG8 , the number of shielding wires 103 is 2, the fourth distance d4 and the fifth distance d5 are 10 ⁇ m respectively, and the line width w1 of the shielding wire 103 is 35 ⁇ m; in FIG9 , the number of shielding wires 103 is 3, the fourth distance d4 and the fifth distance d
  • the present disclosure tests the parasitic capacitance between a touch driving line Tx and a touch sensing line Rx on both sides of the third distance d3 in Figures 4 to 11.
  • the line length of the touch driving line Tx is 100 ⁇ m
  • the line width w2 of the touch driving line Tx is 10 ⁇ m
  • the line length of the touch sensing line Rx is 100 ⁇ m
  • the line width w3 of the touch sensing line Rx is 10 ⁇ m
  • the line length of the shielding line 103 is 100 ⁇ m.
  • the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx is 0.54 femtofarads (fF); it can be seen from the above that the third distance d3 of the scheme shown in FIG. 2 is 18 ⁇ m, and the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx is 1.54 femtofarads (fF); it can be seen that when the third distance d3 is the same, after the shielding line 103 is added, the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx is reduced by about 65%.
  • the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx is 0.28 femtofarads (fF).
  • the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx can be reduced from 0.54 femtofarads (fF) to 0.28 femtofarads (fF), which is reduced by about 48%.
  • the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx is 0.15 femtofarads (fF); compared with the scheme shown in FIG4 , it can be seen that when the fourth distance d4 and the fifth distance d5 are the same (both are 4 ⁇ m), the line width w1 of the shielding line 103 is increased from 10 ⁇ m shown in FIG4 to 50 ⁇ m shown in FIG6 , and the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx is reduced from 0.54 femtofarads (fF) to 0.15 femtofarads (fF), which is reduced by about 72%.
  • FIG6 shows that increasing the line width w1 of the shielding line 103 has a better shielding effect than simply increasing the fourth distance d4 and the fifth distance d5 .
  • the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx is 0.09 femtofarad (fF).
  • fF femtofarad
  • the parasitic capacitance between the touch drive line Tx and the touch sensing line Rx is 0.08 femtofarads (fF).
  • the scheme shown in FIG8 can achieve a stronger shielding effect by increasing the number of shielding lines 103.
  • the parasitic capacitance between the touch drive line Tx and the touch sensing line Rx is 0.06 femtofarads (fF).
  • Figure 12 also shows the parasitic capacitance between the touch drive line Tx and the touch sensing line Rx when there is no shielding line 103 between the touch drive line Tx and the touch sensing line Rx (that is, the number of shielding lines 103 is 0) while ensuring that the third distance d3 between the touch drive line Tx and the touch sensing line Rx is 100 ⁇ m as shown in Figures 7 to 11.
  • the horizontal axis of Figure 12 represents the number of shielding lines 103 between the touch drive line Tx and the touch sensing line Rx
  • the vertical axis represents the parasitic capacitance (Cm) between the touch drive line Tx and the touch sensing line Rx. It can be seen from FIG.
  • the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx is 0.19 femtofarad (fF); when the number of the shielding lines 103 between the touch driving line Tx and the touch sensing line Rx increases from 0 to 3, the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx gradually decreases; when the number of the shielding lines 103 between the touch driving line Tx and the touch sensing line Rx increases from 3 to 5, the parasitic capacitance between the touch driving line Tx and the touch sensing line Rx remains almost unchanged.
  • the sixth distance d6 can be substantially the same (that is, the same or within a 5% error range caused by factors such as manufacturing process and measurement), so that the shielding lines 103 are evenly distributed within the third distance d3 , which is beneficial to improving the etching uniformity of the film layer where the shielding lines 103 are located.
  • the fourth distance d 4 , the fifth distance d 5 , and the sixth distance d 6 may be respectively substantially equal to (i.e., equal to or within a 5% error range caused by factors such as manufacturing process and measurement) the first distance d 1 , thereby avoiding a short circuit between the shielding line 103 and the touch sensing line Tx or the touch sensing line Rx, and ensuring that the line width w 1 of the shielding line 103 is larger, resulting in a better shielding effect.
  • the third distance d3 that can be used to set the shielding line 103 is limited, and the third distance d3 is equal to the line width w1 of each shielding line 103, and the sum of the fourth distance d4 , the fifth distance d5 , and at least one sixth distance d6 , wherein the number of the sixth distance d6 is equal to the total number of shielding lines 103 minus one.
  • the sum of the fourth distance d 4 , the fifth distance d 5 , and at least one sixth distance d 6 is equal to the sum of at least n sixth distances, and n is equal to the total number of shielding wires 103 plus one.
  • the line width w 1 of the shielding wire 103 is negatively correlated with the total number of shielding wires 103 in the at least one shielding wire 103.
  • the number of shielding wires 103 is 2, 3, 4, and 5, respectively, and accordingly, the line width w 1 of the shielding wire 103 is 35 ⁇ m, 28 ⁇ m, 20 ⁇ m, and 15.2 ⁇ m, respectively.
  • the frame area may include a first frame area B1 located on one side of the display area AA, a second frame area B2 opposite to the first frame area B1 , and a third frame area B3 and a fourth frame area B4 respectively connected to the first frame area B1 and the second frame area B2 , wherein the first frame area B1 includes a first fan-out area B11 , a bending area B12 , and a second fan-out area B13 sequentially arranged in a direction away from the display area AA, and optionally, a binding area B14 bound to a circuit board (e.g., a flexible circuit board FPC) is provided on one side of the second fan-out area B13 away from the display area AA.
  • a circuit board e.g., a flexible circuit board FPC
  • At least one of all the shielding lines 103 includes a main body 31 and at least two branch portions 32, and the main body 31 and at least two branch portions 32 of the same shielding line 103 are integrally arranged, the main body 31 is located in the second fan-out area B13 and the bending area B12 , and each branch portion 32 is located in at least part of the first fan-out area B11 , the second border area B2 , the third border area B3 and the fourth border area B4 .
  • the touch driving line Tx and the touch sensing line Rx are shielded from interference by at least two branches 32, which is beneficial to improving the touch performance; at the same time, at least two branches 32 can share a main body 31 and be electrically connected to a pin of a circuit board (such as a flexible circuit board FPC).
  • a circuit board such as a flexible circuit board FPC
  • each branch 32 is electrically connected to the circuit board (such as a flexible circuit board FPC) through a corresponding pin
  • the present disclosure can save the number of pins of the circuit board (such as a flexible circuit board FPC), reduce the space occupied by the circuit board (such as a flexible circuit board FPC), reduce the load (loading), and reduce power consumption.
  • the line width w 31 of the main body 31 may be substantially equal to (i.e., equal to or within a 5% error range caused by factors such as manufacturing process, measurement, etc.) 2.5 times of the first distance d 1.
  • a seventh distance d 7 is provided between the main body 31 and the plurality of touch driving lines Tx as a whole, and an eighth distance d 8 is provided between the main body 31 and the plurality of touch sensing lines Rx as a whole.
  • the seventh distance d 7 and the eighth distance d 8 are respectively greater than or equal to the first distance d 1 and less than or equal to 4.5 times of the first distance d 1 .
  • the line width w32 of the branch portion 31 may be greater than or equal to 2.5 times the first distance d1 and less than or equal to 12.5 times the first distance d1 .
  • a ninth distance d9 is provided between the branch portion 32 and the plurality of touch driving lines Tx as a whole, and a tenth distance d10 is provided between the branch portion 32 and the plurality of touch sensing lines Rx as a whole.
  • the ninth distance d9 and the tenth distance d10 are respectively greater than or equal to the first distance d1 and less than or equal to 12.5 times the first distance d1 .
  • the display substrate provided by the embodiments of the present disclosure, there may be a problem of insufficient wiring space at a position where the second fan-out area B13 is adjacent to the bending area B12 .
  • the distance between the main body 31 and the touch driving line Tx and the touch sensing line Rx as shown in FIG. 15 and FIG.
  • the touch driving line Tx and/or the touch sensing line Rx on at least one side of the main body 31 may include: a first touch portion 211, a second touch portion 212 and a third touch portion 213 sequentially connected in a direction away from the display area AA, wherein an eleventh distance d11 is provided between the first touch portion 211 and the main body 31, a twelfth distance d12 is provided between the second touch portion 212 and the main body 31, and a thirteenth distance d13 is provided between the third touch portion 213 and the main body 31.
  • the eleventh distance d11 may be substantially equal to (i.e., equal to or within a 5% error range caused by factors such as manufacturing process and measurement) the first distance d1
  • the twelfth distance d12 is greater than the first distance d1 and less than the first distance d1.
  • the thirteenth distance d13 is approximately equal to (that is, equal to or within a 5% error range caused by factors such as manufacturing process and measurement) 4.5 times the first distance d1 .
  • At least one grounding line 104 can be further arranged between the plurality of touch driving lines Tx as a whole and the plurality of touch sensing lines Rx as a whole, and the grounding line 104 and the shielding line 103 are arranged independently of each other, so as to shield the touch driving signal of the touch driving line Tx and the touch sensing signal of the touch sensing line Rx through the grounding line 104 and the shielding line 103.
  • the grounding line 104 and the shielding line 103 can be alternately arranged between the whole of the plurality of touch driving lines Tx and the whole of the plurality of touch sensing lines Rx.
  • at least part of the shielding line 103 can be arranged adjacent to the plurality of touch driving lines Tx compared to the whole of at least one grounding line 104.
  • the shielding line 103 can be loaded with the same grounding signal as the grounding line 104, or the shielding line 103 can be loaded with the same touch driving signal as the touch driving line Tx.
  • the shielding line 103 Since the same signals will not interfere with each other, when the shielding line 103 is loaded with the same touch driving signal as the touch driving line Tx, by setting at least part of the shielding line 103, it can be closer to the plurality of touch driving lines Tx than the whole of at least one grounding line 104, which is conducive to better shielding the interference of the touch sensing signal of the touch sensing line Rx on the touch driving signal of the touch driving line Tx.
  • a touch driving electrode electrically connected to the touch driving line Tx and a touch sensing electrode electrically connected to the touch sensing line Rx may be provided in the display area AA.
  • the touch driving electrode and the touch sensing electrode are both located in the touch layer (TMB), and the touch driving electrode or the touch sensing electrode is electrically connected through a bridging layer (TMA), and an insulating layer is provided between the touch layer and the bridging layer.
  • the touch driving line Tx and the touch sensing line Rx may be double-layered in the touch layer and the bridging layer, and accordingly, the shielding line 103 may also be provided as a double-layered wiring structure in the touch layer and the bridging layer.
  • the wiring located in the touch layer is electrically connected to the wiring located in the bridging layer through a via penetrating the insulating layer.
  • floating (dummy) lines 105 can also be set on both sides of the whole formed by multiple touch driving lines Tx and multiple touch sensing lines Rx to prevent the insulating layer between the touch layer and the bridge layer from wrinkling or even abnormally falling off, resulting in poor touch.
  • the floating lines 105 can be wired in at least one layer of the bridge layer and the touch layer, and in order to enhance the reinforcement effect of the insulating layer, the number of floating lines 105 wired in the bridge layer can be less than the number of wires in the touch layer, so that some floating lines 105 close to the touch driving signal lines Tx or the touch sensing signal lines Rx have a double-layer wiring structure in the bridge layer and the touch layer, and the remaining floating lines 105 far away from the touch driving signal lines Tx or the touch sensing signal lines Rx have a single-layer wiring structure in the touch layer.
  • the above-mentioned display substrate provided in the embodiment of the present disclosure, as shown in FIG. 24, it may also include a layer where the pixel circuit 106 is located, a layer where the light-emitting device 107 is located, an encapsulation layer 108, a circular polarizer 109, a protective cover plate 110, etc.
  • a color film may also be used to replace the circular polarizer 109, which is not limited here.
  • Other essential components of the display substrate are understood by ordinary technicians in the field, and are not described here, nor should they be used as limitations on the present disclosure.
  • the present disclosure further provides a display device, as shown in FIG24, comprising the above-mentioned display substrate 001 provided in the embodiment of the present disclosure, and the display substrate 001 may be a display substrate such as OLED, QLED, etc. Since the principle of solving the problem by the display device is similar to the principle of solving the problem by the above-mentioned display substrate, the implementation of the display device can refer to the embodiment of the above-mentioned display substrate, and the repeated parts will not be repeated.
  • the display device in the above-mentioned display device provided in the embodiment of the present disclosure, as shown in Figure 24, it can also include a flexible circuit board FPC electrically connected to the display substrate 001, and the flexible circuit board FPC is located on the opposite side of the display side of the display device (that is, the side where the protective cover plate 110 is located).
  • the display substrate 001 includes a display area AA, and a first frame area B 1 on one side of the display area AA for binding with a flexible circuit board FPC; wherein the first frame area B 1 includes a first fan-out area B 11 , a bending area B 12 , a second fan-out area B 13 and a binding area B 14 arranged in sequence in a direction away from the display area AA, wherein the first fan-out area B 11 is located on the display side (i.e., the side where the protective cover plate 110 is located), and the second fan-out area B 13 is located on the opposite side of the display side (i.e., the side where the protective cover plate 110 is located), so as to facilitate the binding connection between the touch line 102 in the second fan-out area B 13 and the flexible circuit board FPC.
  • the first frame area B 1 includes a first fan-out area B 11 , a bending area B 12 , a second fan-out area B 13 and a binding area B 14 arranged in sequence in a direction
  • the width of the first frame area B 1 where the second fan-out area B 13 is located can be effectively reduced, which is conducive to realizing a narrow frame design of the first frame area B 1 .
  • the above-mentioned display device may be: a projector, a 3D printer, a virtual reality device, a mobile phone, a tablet computer, a television, a display, a laptop computer, a digital photo frame, a navigator, a smart watch, a fitness wristband, a personal digital assistant, or any other product or component with a display function.
  • the display device includes, but is not limited to, components such as a radio frequency unit, a network module, an audio output & input unit, a sensor, a display unit, a user input unit, an interface unit, and a control chip.
  • control chip is a central processing unit, a digital signal processor, a system chip (SoC), and the like.
  • the control chip may also include a memory, and may also include a power module, and the like, and realize power supply and signal input and output functions through additionally provided wires, signal lines, and the like.
  • the control chip may also include hardware circuits and computer executable codes, and the like.
  • the hardware circuit may include conventional very large scale integration (VLSI) circuits or gate arrays and existing semiconductors or other discrete components such as logic chips and transistors; the hardware circuit may also include field programmable gate arrays, programmable array logic, programmable logic devices, and the like.
  • VLSI very large scale integration
  • the above structure does not constitute a limitation on the above display device provided in the embodiment of the present disclosure.
  • the above display device provided in the embodiment of the present disclosure may include more or fewer of the above components, or a combination of certain components, or different component arrangements.

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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、以及位于显示区至少一侧的边框区；多条触控线，位于边框区，多条触控线包括多条触控驱动线和多条触控感应线，多条触控驱动线中的相邻两条触控驱动线之间具有第一距离，多条触控感应线中的相邻两条触控感应线之间具有第二距离，多条触控驱动线与多条触控感应线之间具有第三距离，第一距离大致等于第二距离，第三距离大于第一距离和第二距离。

Description

显示基板及显示装置 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
本公开提供的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、以及位于所述显示区至少一侧的边框区；
多条触控线，位于所述边框区，所述多条触控线包括多条触控驱动线和多条触控感应线，所述多条触控驱动线中的相邻两条所述触控驱动线之间具有第一距离，所述多条触控感应线中的相邻两条所述触控感应线之间具有第二距离，所述多条触控驱动线与所述多条触控感应线之间具有第三距离，所述第一距离大致等于所述第二距离，所述第三距离大于所述第一距离和所述第二距离。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述多条触控驱动线与所述多条触控感应线之间空白设置。
在一些实施例中，在本公开实施例提供的上述显示基板中，还包括位于 所述多条触控驱动线与所述多条触控感应线之间的至少一条屏蔽线。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述屏蔽线的线宽大于等于所述第一距离的2.5倍且小于等于所述第一距离的12.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述至少一条屏蔽线与所述多条触控驱动线之间具有第四距离，所述至少一条屏蔽线与所述多条触控感应线之间具有第五距离，所述第四距离和所述第五距离分别大于等于所述第一距离且小于等于所述第一距离的12.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述至少一条屏蔽线的数量为1，所述第四距离和所述第五距离分别大于所述屏蔽线的线宽。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述至少一条屏蔽线的数量为正整数，所述第四距离和所述第五距离分别小于所述屏蔽线的线宽。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述至少一条屏蔽线的数量大于等于2，相邻两条所述屏蔽线之间具有第六距离，所述第六距离、所述第四距离、所述第五距离大致相等。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述至少一条屏蔽线的数量大于等于3，所述第四距离、所述第五距离、以及所述第六距离分别大致等于所述第一距离。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述屏蔽线的线宽与所述至少一条屏蔽线的数量呈负相关关系。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述边框区包括位于所述显示区一侧的第一边框区，与所述第一边框区相对而置的第二边框区，以及分别连接所述第一边框区、所述第二边框区的第三边框区和第四边框区，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；
至少一条所述屏蔽线包括主体部和至少两个分支部，同一所述屏蔽线的 所述主体部与所述至少两个分支部一体设置，所述主体部位于所述第二扇出区和所述弯折区，所述至少两个分支部位于所述第一扇出区、所述第二边框区、所述第三边框区和所述第四边框区的至少部分。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述主体部的线宽大致等于所述第一距离的2.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述主体部与所述多条触控驱动线之间具有第七距离、所述主体部与所述多条触控感应线之间具有第八距离，所述第七距离和所述第八距离分别大于等于所述第一距离且小于等于所述第一距离的4.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述分支部的线宽大于等于所述第一距离的2.5倍且小于等于所述第一距离的12.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述分支部与所述多条触控驱动线之间具有第九距离、所述分支部与所述多条触控感应线之间具有第十距离，所述第九距离和所述第十距离分别大于等于所述第一距离且小于等于所述第一距离的12.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，在所述第二扇出区，位于所述主体部至少一侧的所述触控驱动线和/或所述触控感应线包括：在远离显示区的方向上依次连接的第一触控部、第二触控部和第三触控部，其中，
所述第一触控部与所述主体部之间具有第十一距离，所述第二触控部与所述主体部之间具有第十二距离，所述第三触控部与所述主体部之间具有第十三距离，所述第十一距离大致等于所述第一距离，所述第十二距离大于所述第一距离且小于所述第一距离的4.5倍，所述第十三距离大致等于所述第一距离的4.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，还包括位于所述多条触控驱动线与所述多条触控感应线之间的至少一条接地线，所述接地线与所述屏蔽线相互独立设置。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述接地线与所述屏蔽线在所述多条触控驱动线与所述多条触控感应线之间交替设置。
在一些实施例中，在本公开实施例提供的上述显示基板中，至少部分所述屏蔽线相较于所述至少一条接地线邻近所述多条触控驱动线设置。
在一些实施例中，在本公开实施例提供的上述显示基板中，所述第三距离大于等于第一距离的4.5倍且小于等于所述第一距离的37.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，各所述触控线的线宽大致等于所述第一距离的2.5倍。
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，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绑定所述柔性电路板的第一边框区；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区域的放大结构示意图；
图3为本公开实施例提供的显示基板的又一种结构示意图；
图4为图3中Z 2区域的一种放大结构示意图；
图5为图3中Z 2区域的又一种放大结构示意图；
图6为图3中Z 2区域的又一种放大结构示意图；
图7为图3中Z 2区域的又一种放大结构示意图；
图8为图3中Z 2区域的又一种放大结构示意图；
图9为图3中Z 2区域的又一种放大结构示意图；
图10为图3中Z 2区域的又一种放大结构示意图；
图11为图3中Z 2区域的又一种放大结构示意图；
图12为本公开实施例提供的屏蔽线数量与屏蔽效果的关系图；
图13为图3中Z 3区域的放大结构示意图；
图14为图3中Z 4区域的放大结构示意图；
图15为图3中Z 5区域的放大结构示意图；
图16为图15中Z 6区域的放大结构示意图；
图17为图15中Z 7区域的放大结构示意图；
图18为本公开实施例提供的由柔性电路板的引脚引出的一条屏蔽线形成三个分支的结构示意图；
图19为图3中Z 8区域的放大结构示意图；
图20为图3中Z 2区域的又一种放大结构示意图；
图21为图3中Z 2区域的又一种放大结构示意图；
图22为图3中Z 2区域的又一种放大结构示意图；
图23为图3中Z 2区域的又一种放大结构示意图；
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。为了保持本公开实施例的以下说明清楚且简明，本公开省略了已知功能和已知部件的详细说明。
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。
相关技术中，采用两层金属制作触控功能层，一层为金属网格层(Metal Mesh)，另一层为桥接层。金属网格位于显示区AA，并且按照横纵方向金属网格可以分为触控驱动电极和触控感应电极，其中，触控驱动电极和触控感应电极中的一个相互连接，另一个通过桥接层连接。因此无需外挂触控模组(TSP)，从而可以减小屏幕厚度，进而有利于折叠；同时没有贴合公差，可减小边框宽度。
为了向触控驱动电极和触控感应电极提供有效信号，在显示区AA周围的边框区内设置了与触控驱动电极电连接的触控驱动线、以及与触控感应电极连接的触控感应线。然而，相关技术中触控驱动线与触控感应线之间的距离与相邻两条触控驱动线之间的距离、以及相邻两条触控感应线之间的距离相同或相近，导致触控驱动线与触控感应线之间存在较大的寄生电容，造成触控驱动线上的触控驱动信号、以及触控感应线上的感应信号相互干扰，影响触控性能。
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4所示，包括：
衬底基板101，该衬底基板101包括显示区AA、以及位于显示区AA至少一侧的边框区(例如B 1、B 2、B 3、B 4)；
多条触控线102，位于边框区(例如B 1、B 2、B 3、B 4)，多条触控线102包括多条触控驱动线Tx和多条触控感应线Rx，多条触控驱动线Tx中的相邻 两条触控驱动线Tx之间具有第一距离d 1，多条触控感应线Rx中的相邻两条触控感应线Rx之间具有第二距离d 2，多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间具有第三距离d 3，其中，第一距离d 1大致等于(即等于或在因制作工艺、测量等因素造成的5％的误差范围内)第二距离d 2，第三距离d 3大于第一距离d 1和第二距离d 2。
在本公开实施例提供的上述显示基板中，通过设置多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间的第三距离d 3，大于相邻两条触控驱动线Tx之间的第一距离d 1、以及相邻两条触控感应线Rx之间的第二距离d 2，使得多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间的第三距离d 3增大，由此可减小多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间的寄生电容，从而可降低寄生电容对触控驱动线Tx的触控驱动信号、以及触控感应线Rx的触控感应信号的干扰，提高触控性能。
在一些实施例中，在本公开实施例提供的上述显示基板中，可以设置第三距离d 3大于等于第一距离d 1的4.5倍且小于等于第一距离d 1的37.5倍，例如第三距离d 3是第一距离d 1的4.5倍、14.5倍、25倍、37.5倍等。示例性地，第一距离d 1为4μm，第三距离d 3为18μm、58μm、100μm、150μm等。在多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间的第三距离d 3与相邻两条触控驱动线Tx之间的第一距离d 1满足上述大小关系的情况下，不但可以很好地降低寄生电容造成的干扰，而且可以充分利用边框区(例如B 1、B 2、B 3、B 4)的空间，使得边框区(例如B 1、B 2、B 3、B 4)的宽度不会因第三距离d 3过大而较宽，即仍可满足窄边框设计。
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和图2所示，多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间可以空白设置，换言之，多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间没有任何布线，通过单纯增大多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间的第三距离d 3来减小二者之间的寄生电容。
考虑到在多条触控驱动线Tx和多条触控感应线Rx中，主要是距离最小 的一条触控驱动线Tx一条触控感应线Rx之间存在相互干扰，因此，本公开中以一条触控驱动线Tx和一条触控感应线Rx之间具有第三距离d 3为例，对不同第三距离d 3下二者之间的寄生电容进行了测试。可选地，本公开提供了触控驱动线Tx的线长为100μm、触控驱动线Tx的线宽w 2为10μm，触控感应线Rx线长为100μm、触控感应线Rx的线宽w 3为10μm，触控驱动线Tx与触控感应线Rx之间的第三距离d 3分别为4μm和18μm两种情况下的寄生电容，结果显示，在第三距离d 3为4μm的情况下，寄生电容为4.55飞法(fF)，在第三距离d 3为18μm的情况下，寄生电容为1.54飞法(fF)，可见，通过增大第三距离d 3至18μm，相较于第三距离d 3为4μm的方案，约减小了66％的寄生电容。
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至图11所示，还可以包括位于多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间的至少一条屏蔽线103，即可以在多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间的第三距离d 3内设置至少一条屏蔽线103，从而可通过屏蔽线103将多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体相互隔离开，有效屏蔽触控驱动线Tx的触控驱动信号、以及触控感应线Rx的触控感应信号之间的相互干扰，有助于提高触控性能。
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4至图11所示，屏蔽线103的线宽w 1可以大于等于第一距离d 1的2.5倍且小于等于第一距离d 1的12.5倍，在此宽度范围内的屏蔽线103可以很好地对其两侧的触控驱动线Tx的触控驱动信号与触控感应线Rx的触控感应信号实现屏蔽隔离，避免触控驱动信号与触控感应信号相互干扰。可选地，屏蔽线103的线宽w 1可以等于第一距离d 1的2.5倍、3.8倍、5倍、7倍、8.75倍、12.5倍等，示例性地，第一距离d 1为4μm，屏蔽线103的线宽w 1可以为10μm、15.2μm、20μm、28μm、35μm、50μm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4至图11所示，各触控线102的线宽(例如触控驱动线Tx的线宽w 2、触控感应线 Rx的线宽w 3)可以大致等于(即等于或在因制作工艺、测量等因素造成的5％的误差范围内)第一距离d 1的2.5倍，在此线宽下，各触控线102的电阻较小且可有效降低触控线102因过细而发生的断线风险。示例性地，第一距离d 1为4μm，触控驱动线Tx的线宽w 2、以及触控感应线Rx的线宽w 3分别为10μm。结合上述记载的“屏蔽线103的线宽w 1大于等于第一距离d 1的2.5倍且小于等于第一距离d 1的12.5倍”可知，屏蔽线103的线宽w 1大于等于触控线102的线宽(例如触控驱动线Tx的线宽w 2、触控感应线Rx的线宽w 3)，可选地，屏蔽线103的线宽w 1最大可等于触控线102的线宽(例如触控驱动线Tx的线宽w 2、触控感应线Rx的线宽w 3)的5倍。
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4至图11所示，至少一条屏蔽线103这一整体与多条触控驱动线Tx这一整体之间具有第四距离d 4，至少一条屏蔽线103这一整体与多条触控感应线Rx这一整体之间具有第五距离d 5，可选地，第四距离d 4和第五距离d 5可以分别大于等于第一距离d 1且小于等于第一距离d 1的12.5倍。在第四距离d 4和第五距离d 5分别等于第一距离d 1的情况下，既可以避免屏蔽线103与触控驱动线Tx之间短路，又可以避免屏蔽线103与触控感应线Rx之间短路；在第四距离d 4和第五距离d 5分别等于第一距离d 1等于第一距离d 1的12.5倍的情况下，可以兼顾窄边框和防寄生电容干扰的效果。在一些实施例中，第四距离d 4和第五距离d 5可以分别为第一距离d 1的1倍、2.5倍、6倍、12.5倍等，可选地，第一距离d 1为4μm，第四距离d 4和第五距离d 5分别为4μm、10μm、24μm、50μm等。
需要说明的是，受布线空间的限制，单条触控线102的线宽(例如触控驱动线Tx的线宽w 2、触控感应线Rx的线宽w 3)、多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间的第三距离d 3、单条屏蔽线103的线宽w 1、至少一条屏蔽线103这一整体与多条触控驱动线Tx这一整体之间的第四距离d 4、以及至少一条屏蔽线103这一整体与多条触控感应线Rx这一整体之间的第五距离d 5，在边框区(例如B 1、B 2、B 3、B 4)的不同区域内可能存 在一定差异。本公开中限定的各相关参数之间的大小关系，可视为对同一区域内走线趋势近似平行的触控驱动线Tx、触控感应线Rx、屏蔽线103之间大小关系的限定。
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所示，至少一条屏蔽线103这一整体中所含屏蔽线103的数量可以为1，在此情况下，该屏蔽线103整体与多条触控驱动线Tx这一整体之间的第四距离d 4、以及该屏蔽线103与多条触控感应线Rx这一整体之间的第五距离d 5可以分别大于屏蔽线103的线宽w 1，在此情况下，相当于控制第四距离d 4和第五距离d 5较大，来尽可能地避免该屏蔽线103两侧的触控驱动线Tx的触控驱动信号与触控感应线Rx的触控感应信号相互干扰。
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4、图6至图11所示，至少一条屏蔽线103的数量为正整数(例如1、2、3、4、5等)，在此情况下，至少一条屏蔽线103这一整体与多条触控驱动线Tx这一整体之间的第四距离d 4、以及至少一条屏蔽线103这一整体与多条触控感应线Rx这一整体之间的第五距离d 5可以分别小于屏蔽线103的线宽w 1。屏蔽线103的线宽w 1越大，屏蔽线103的屏蔽效果越好，因此，可通过设置屏蔽线103的线宽w 1大于第四距离d 4和第五距离d 5来保证屏蔽线103的线宽w 1较大，从而通过至少一条屏蔽线103这一整体较大限度地屏蔽触控驱动线Tx的触控驱动信号与触控感应线Rx的触控感应信号的相互干扰。
示例性地，在图4中，屏蔽线103的数量为1，第四距离d 4和第五距离d 5分别为4μm，屏蔽线103的线宽w 1为10μm；在图6中，屏蔽线103的数量为1，第四距离d 4和第五距离d 5分别为4μm，屏蔽线103的线宽w 1为50μm；在图7中，屏蔽线103的数量为1，第四距离d 4和第五距离d 5分别为25μm，屏蔽线103的线宽w 1为50μm；在图8中，屏蔽线103的数量为2，第四距离d 4和第五距离d 5分别为10μm，屏蔽线103的线宽w 1为35μm；在图9中，屏蔽线103的数量为3，第四距离d 4和第五距离d 5分别为4μm，屏蔽线103的线宽w 1为28μm；在图10中，屏蔽线103的数量为4，第四距离d 4和第五距 离d 5分别为4μm，屏蔽线103的线宽w 1为20μm；在图11中，屏蔽线103的数量为5，第四距离d 4和第五距离d 5分别为4μm，屏蔽线103的线宽w 1为15.2μm。另外，在图5中，屏蔽线103的数量为1，第四距离d 4和第五距离d 5分别为24μm，屏蔽线103的线宽w 1为10μm。
相应地，本公开分别测试了图4至图11中第三距离d 3两侧的一条触控驱动线Tx与一条触控感应线Rx之间的寄生电容。可选地，在图4至图11中，触控驱动线Tx的线长为100μm、触控驱动线Tx的线宽w 2为10μm，触控感应线Rx线长为100μm、触控感应线Rx的线宽w 3为10μm，屏蔽线103的线长为100μm。
结果显示，在图4所示方案下，触控驱动线Tx与触控感应线Rx之间的寄生电容为0.54飞法(fF)；由上文可知图2所示方案的第三距离d 3为18μm，触控驱动线Tx与触控感应线Rx之间的寄生电容为1.54飞法(fF)；可见，在第三距离d 3相同的情况下，增加屏蔽线103后，触控驱动线Tx与触控感应线Rx之间的寄生电容降低了约65％。
在图5所示方案下，触控驱动线Tx与触控感应线Rx之间的寄生电容为0.28飞法(fF)。对比图4所示方案和图5所示方案可知，在屏蔽线103的数量相同、线宽w 1相同的情况下，通过将第四距离d 4和第五距离d 5由图4所示的4μm增加至图5所示的24μm，可以使得触控驱动线Tx与触控感应线Rx之间的寄生电容由0.54飞法(fF)减小至0.28飞法(fF)，降低了约48％。
在图6所示方案下，触控驱动线Tx与触控感应线Rx之间的寄生电容为0.15飞法(fF)；对比图4所示方案可知，在第四距离d 4和第五距离d 5相同(均为4μm)的情况下，将屏蔽线103的线宽w 1由图4所示的10μm增大至图6所示的50μm，触控驱动线Tx与触控感应线Rx之间的寄生电容由0.54飞法(fF)减小至0.15飞法(fF)，降低了约72％。对比图5通过增大第四距离d 4和第五距离d 5来降低寄生电容的方案，图6所示增加屏蔽线103的线宽w 1比单纯增大第四距离d 4和第五距离d 5的屏蔽效果更好。
在图7所示方案下，触控驱动线Tx与触控感应线Rx之间的寄生电容为 0.09飞法(fF)，相较于图5中仅增大第三距离d 3，图7中通过同时增大第三距离d 3和第一屏蔽线103的线宽w 1，可以实现更好的屏蔽效果。在折叠产品中触控驱动线Tx和触控感应线Rx较长的情况下，可选择图7所示方案实现更强的屏蔽效果。
在图8所示方案下，触控驱动线Tx与触控感应线Rx之间的寄生电容为0.08飞法(fF)。对比图7所示方案与图8所示方案可知，在第三距离d 3相同的情况下，图8所示方案通过增加屏蔽线103的数量可以实现更强的屏蔽效果。另外，在图9至图11所示方案下，触控驱动线Tx与触控感应线Rx之间的寄生电容为0.06飞法(fF)，对比图8所示方案可知，在屏蔽线103的数量由2依次增加至3、4、5的情况下，寄生电容进一步减小，但屏蔽线103的数量为3、4、5的情况下，屏蔽效果相当，为节约原料成本、降低制作工艺难度、节约布线空间，本公开中可选择屏蔽线103的数量为3的图9所示方案。
此外，为更直观表现图7至图11所示方案的屏蔽效果，本公开将图7至图11所示方案的寄生电容以图12所示折线进行了示意。同时，图12中还示出了在保证触控驱动线Tx与触控感应线Rx之间的第三距离d 3为图7至图11所示的100μm的情况下，触控驱动线Tx与触控感应线Rx之间不具有屏蔽线103(即屏蔽线103的数量为0)时，触控驱动线Tx与触控感应线Rx之间的寄生电容。具体的，图12的横坐标表示触控驱动线Tx与触控感应线Rx之间屏蔽线103的数量，纵坐标表示触控驱动线Tx与触控感应线Rx之间的寄生电容(Cm)。由图12可见，在触控驱动线Tx与触控感应线Rx之间未设置屏蔽线103的情况下，触控驱动线Tx与触控感应线Rx之间的寄生电容为0.19飞法(fF)；在触控驱动线Tx与触控感应线Rx之间的屏蔽线103数量由0增大至3的过程中，触控驱动线Tx与触控感应线Rx之间的寄生电容逐渐减小；在触控驱动线Tx与触控感应线Rx之间的屏蔽线103数量由3增大至5的过程中，触控驱动线Tx与触控感应线Rx之间的寄生电容几乎不变。
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8至图11所示，在至少一条屏蔽线103的数量大于等于2的情况下，相邻两条屏蔽 线103之间具有第六距离d 6，可选地，第六距离d 6、第四距离d 4、第五距离d 5三者可以大致相同(即相同或在因制作工艺、测量等因素造成的5％的误差范围内)，使得各屏蔽线103均匀分布在第三距离d 3内，有利于提高屏蔽线103所在膜层的刻蚀均一性。
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至图11所示，在至少一条屏蔽线103的数量大于等于3的情况下，第四距离d 4、第五距离d 5、以及第六距离d 6可以分别大致等于(即等于或在因制作工艺、测量等因素造成的5％的误差范围内)第一距离d 1，这样可以避免屏蔽线103与触控感应线Tx或触控感应线Rx之间短路，同时可保证屏蔽线103的线宽w 1较大，屏蔽效果更好。
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8至图11所示，在至少一条屏蔽线103的数量大于等于2，且第四距离d 4、第五距离d 5、第六距离d 6三者可以大致相同(例如等于第一距离d 1)的情况下，在满足窄边框效果的基础上，可用于设置屏蔽线103的第三距离d 3有限，而第三距离d 3等于各屏蔽线103的线宽w 1、以及第四距离d 4、第五距离d 5、以及至少一个第六距离d 6之和，其中第六距离d6的数量等于屏蔽线103的总数减一，由此可知，第四距离d 4、第五距离d 5、以及至少一个第六距离d 6之和越大，则各屏蔽线103的线宽w 1越小。且在第四距离d 4、第五距离d 5、第六距离d 6三者可以大致相同的情况下，第四距离d 4、第五距离d 5、以及至少一个第六距离d 6之和等于至少n个第六距离之和，n等于屏蔽线103的总数加一。基于此，屏蔽线103的线宽w 1与至少一条屏蔽线103这一整体中屏蔽线103的总数呈负相关关系。例如，在图8至图11中，屏蔽线103的数量依次为2、3、4、5，相应地，屏蔽线103的线宽w 1依次为35μm、28μm、20μm、15.2μm。
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所示，边框区可以包括位于显示区AA一侧的第一边框区B 1，与第一边框区B 1相对而置的第二边框区B 2，以及分别连接第一边框区B 1、第二边框区B 2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 向上依次设置的第一扇出区B 11、弯折区B 12和第二扇出区B 13，可选地，在第二扇出区B 13远离显示区AA的一侧为与电路板(例如柔性电路板FPC)绑定的绑定区B 14。在一些实施例中，如图13至图19所示，全部屏蔽线103中的至少一条包括主体部31和至少两个分支部32，同一屏蔽线103的主体部31与至少两个分支部32一体设置，主体部31位于第二扇出区B 13和弯折区B 12，各分支部32位于第一扇出区B 11、第二边框区B 2、第三边框区B 3和第四边框区B 4的至少部分。通过将全部屏蔽线103中的至少一条在弯折区B 12远离绑定区B 14的一侧分为至少两个分支部32，相当于在弯折区B 12远离绑定区B 14的一侧的区域内，触控驱动线Tx与触控感应线Rx之间至少通过两个分支部32进行屏蔽干扰，利于提高触控性能；同时至少两个分支部32可共用一个主体部31与电路板(例如柔性电路板FPC)的一个引脚(pin)电连接，相较于每个分支部32通过一个对应的引脚(pin)与电路板(例如柔性电路板FPC)电连接的方案，本公开可节约电路板(例如柔性电路板FPC)的引脚(pin)数量，减少电路板(例如柔性电路板FPC)所占空间，并且降低负载(loading)，减小功耗。
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13和图16所示，主体部31的线宽w 31可以大致等于(即等于或在因制作工艺、测量等因素造成的5％的误差范围内)第一距离d 1的2.5倍。主体部31与多条触控驱动线Tx这一整体之间具有第七距离d 7、主体部31与多条触控感应线Rx这一整体之间具有第八距离d 8，第七距离d 7和第八距离d 8分别大于等于第一距离d 1且小于等于第一距离d 1的4.5倍。
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13和图14所示，分支部31的线宽w 32可以大于等于第一距离d 1的2.5倍且小于等于第一距离d 1的12.5倍。分支部32与多条触控驱动线Tx这一整体之间具有第九距离d 9、分支部32与多条触控感应线Rx这一整体之间具有第十距离d 10，第九距离d 9和第十距离d 10分别大于等于第一距离d 1且小于等于第一距离d 1的12.5倍。
在一些实施例中，在本公开实施例提供的上述显示基板中，在第二扇出区B 13邻近弯折区B 12的位置可能存在布线空间不足的问题，为了保证主体部31与触控驱动线Tx、以及触控感应线Rx之间的距离，如图15和图17所示，可以设置主体部31至少一侧的触控驱动线Tx和/或触控感应线Rx包括：在远离显示区AA的方向上依次连接的第一触控部211、第二触控部212和第三触控部213，其中，第一触控部211与主体部31之间具有第十一距离d 11，第二触控部212与主体部31之间具有第十二距离d 12，第三触控部213与主体部31之间具有第十三距离d 13，第十一距离d 11可以大致等于(即等于或在因制作工艺、测量等因素造成的5％的误差范围内)第一距离d 1，第十二距离d 12大于第一距离d 1且小于第一距离d 1的4.5倍，第十三距离d 13大致等于(即等于或在因制作工艺、测量等因素造成的5％的误差范围内)第一距离d 1的4.5倍。
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20至图23所示，还可以在多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间设置至少一条接地线104，接地线104与屏蔽线103相互独立设置，以通过接地线104与屏蔽线103共同实现对触控驱动线Tx的触控驱动信号、以及触控感应线Rx的触控感应信号的屏蔽。
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20和图21所示，接地线104与屏蔽线103可以在多条触控驱动线Tx这一整体与多条触控感应线Rx这一整体之间交替设置。或者，如图21至图23所示，至少部分屏蔽线103可以相较于至少一条接地线104这一整体邻近多条触控驱动线Tx设置。在一些实施例中，屏蔽线103可加载与接地线104相同的接地信号，或者屏蔽线103加载与触控驱动线Tx相同的触控驱动信号。由于相同的信号之间不会相互干扰，因此，在屏蔽线103加载与触控驱动线Tx相同的触控驱动信号的情况下，通过设置至少部分屏蔽线103可以相较于至少一条接地线104这一整体更靠近多条触控驱动线Tx，利于更好地屏蔽触控感应线Rx的触控感应信号对触控驱动线Tx的触控驱动信号的干扰。
在一些实施例中，在本公开实施例提供的上述显示基板中，显示区AA内可以设置有与触控驱动线Tx电连接的触控驱动电极，以及与触控感应线Rx电连接的触控感应电极，可选地，触控驱动电极和触控感应电极均位于触控层(TMB)，触控驱动电极或触控感应电极通过桥接层(TMA)电连接，并且触控层与桥接层之间具有绝缘层。可选地，为减小电阻，触控驱动线Tx和触控感应线Rx均可在触控层和桥接层进行双层布线，相应地，屏蔽线103也可以设置为在触控层和桥接层的双层布线结构。对于同一条信号线(例如触控驱动线Tx、触控感应线Rx、屏蔽线103)，位于触控层的走线与位于桥接层的走线通过贯穿绝缘层的过孔电连接。
在一些实施例中，在第一扇出区B 11内，如图19所示，还可以在多条触控驱动线Tx和多条触控感应线Rx构成的整体两侧设置浮空(dummy)线105，以防止触控层与桥接层之间的绝缘层发生褶皱甚至异常脱落而导致触控不良。浮空线105可以在桥接层和触控层中的至少一层进行布线，并且为了增强对绝缘层的加固效果，浮空线105在桥接层的布线数量可以小于在触控层的布线数量，使得靠近触控驱动信号线Tx或触控感应信号线Rx的部分浮空线105具有在桥接层和触控层的双层布线结构，远离触控驱动信号线Tx或触控感应信号线Rx的其余浮空线105具有在触控层的单层布线结构。
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24所示，还可以包括像素电路106所在层，发光器件107所在层、封装层108、圆偏光片109、保护盖板110等。在一些实施例中，也可以采用彩膜(CF)替代圆偏光片109，在此不做限定。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装置中，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110所在侧)的相对侧。
在一些实施例中，如图1、图3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B 11、弯折区B 12、第二扇出区B 13和绑定区B 14，其中，第一扇出区B 11位于显示侧(即保护盖板110所在侧)，第二扇出区B 13位于显示侧(即保护盖板110所在侧)的相对侧，以利于第二扇出区B 13内的触控线102与柔性电路板FPC进行绑定连接。并且，将第二扇出区B 13弯折向显示侧(即保护盖板110所在侧)的相对侧，可以有效减小第二扇出区B 13所在第一边框区B 1的宽度，利于实现第一边框区B 1的窄边框设计。
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：投影仪、3D打印机、虚拟现实设备、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。该显示装置包括但不限于：射频单元、网络模块、音频输出&输入单元、传感器、显示单元、用户输入单元、接口单元以及控制芯片等部件。可选地，控制芯片为中央处理器、数字信号处理器、系统芯片(SoC)等。例如，控制芯片还可以包括存储器，还可以包括电源模块等，且通过另外设置的导线、信号线等实现供电以及信号输入输出功能。例如，控制芯片还可以包括硬件电路以及计算机可执行代码等。硬件电路可以包括常规的超大规模集成(VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的现有半导体或者其它分立的元件；硬件电路还可以包括现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等。另外，本领域技术人员可以理解的是，上述结构并不构成对本公开实施例提供的上述显示装置的限定，换言之，在本公开实施例提供的上述显示装置中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。
尽管本公开已描述了优选实施例，但应当理解的是，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 (24)

  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、以及位于所述显示区至少一侧的边框区；
    多条触控线，位于所述边框区，所述多条触控线包括多条触控驱动线和多条触控感应线，所述多条触控驱动线中的相邻两条所述触控驱动线之间具有第一距离，所述多条触控感应线中的相邻两条所述触控感应线之间具有第二距离，所述多条触控驱动线与所述多条触控感应线之间具有第三距离，所述第一距离大致等于所述第二距离，所述第三距离大于所述第一距离和所述第二距离。
  2. 如权利要求1所述的显示基板，其中，所述多条触控驱动线与所述多条触控感应线之间空白设置。
  3. 如权利要求1所述的显示基板，其中，还包括位于所述多条触控驱动线与所述多条触控感应线之间的至少一条屏蔽线。
  4. 如权利要求3所述的显示基板，其中，所述屏蔽线的线宽大于等于所述第一距离的2.5倍且小于等于所述第一距离的12.5倍。
  5. 如权利要求1或4所述的显示基板，其中，所述至少一条屏蔽线与所述多条触控驱动线之间具有第四距离，所述至少一条屏蔽线与所述多条触控感应线之间具有第五距离，所述第四距离和所述第五距离分别大于等于所述第一距离且小于等于所述第一距离的12.5倍。
  6. 如权利要求5所述的显示基板，其中，所述至少一条屏蔽线的数量为1，所述第四距离和所述第五距离分别大于所述屏蔽线的线宽。
  7. 如权利要求5所述的显示基板，其中，所述至少一条屏蔽线的数量为正整数，所述第四距离和所述第五距离分别小于所述屏蔽线的线宽。
  8. 如权利要求7所述的显示基板，其中，所述至少一条屏蔽线的数量大于等于2，相邻两条所述屏蔽线之间具有第六距离，所述第六距离、所述第四 距离、所述第五距离大致相等。
  9. 如权利要求8所述的显示基板，其中，所述至少一条屏蔽线的数量大于等于3，所述第四距离、所述第五距离、以及所述第六距离分别大致等于所述第一距离。
  10. 如权利要求8或9所述的显示基板，其中，所述屏蔽线的线宽与所述至少一条屏蔽线的数量呈负相关关系。
  11. 如权利要求3～10任一项所述的显示基板，其中，所述边框区包括位于所述显示区一侧的第一边框区，与所述第一边框区相对而置的第二边框区，以及分别连接所述第一边框区、所述第二边框区的第三边框区和第四边框区，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；
    至少一条所述屏蔽线包括主体部和至少两个分支部，同一所述屏蔽线的所述主体部与所述至少两个分支部一体设置，所述主体部位于所述第二扇出区和所述弯折区，所述至少两个分支部位于所述第一扇出区、所述第二边框区、所述第三边框区和所述第四边框区的至少部分。
  12. 如权利要求11所述的显示基板，其中，所述主体部的线宽大致等于所述第一距离的2.5倍。
  13. 如权利要求11或12所述的显示基板，其中，所述主体部与所述多条触控驱动线之间具有第七距离、所述主体部与所述多条触控感应线之间具有第八距离，所述第七距离和所述第八距离分别大于等于所述第一距离且小于等于所述第一距离的4.5倍。
  14. 如权利要求11～13任一项所述的显示基板，其中，所述分支部的线宽大于等于所述第一距离的2.5倍且小于等于所述第一距离的12.5倍。
  15. 如权利要求11～14任一项所述的显示基板，其中，所述分支部与所述多条触控驱动线之间具有第九距离、所述分支部与所述多条触控感应线之间具有第十距离，所述第九距离和所述第十距离分别大于等于所述第一距离且小于等于所述第一距离的12.5倍。
  16. 如权利要求14～15任一项所述的显示基板，其中，在所述第二扇出区，位于所述主体部至少一侧的所述触控驱动线和/或所述触控感应线包括：在远离显示区的方向上依次连接的第一触控部、第二触控部和第三触控部，其中，
    所述第一触控部与所述主体部之间具有第十一距离，所述第二触控部与所述主体部之间具有第十二距离，所述第三触控部与所述主体部之间具有第十三距离，所述第十一距离大致等于所述第一距离，所述第十二距离大于所述第一距离且小于所述第一距离的4.5倍，所述第十三距离大致等于所述第一距离的4.5倍。
  17. 如权利要求3～16任一项所述的显示基板，其中，还包括位于所述多条触控驱动线与所述多条触控感应线之间的至少一条接地线，所述接地线与所述屏蔽线相互独立设置。
  18. 如权利要求17所述的显示基板，其中，所述接地线与所述屏蔽线在所述多条触控驱动线与所述多条触控感应线之间交替设置。
  19. 如权利要求17或18所述的显示基板，其中，至少部分所述屏蔽线相较于所述至少一条接地线邻近所述多条触控驱动线设置。
  20. 如权利要求1～19任一项所述的显示基板，其中，所述第三距离大于等于第一距离的4.5倍且小于等于所述第一距离的37.5倍。
  21. 如权利要求1～20任一项所述的显示基板，其中，各所述触控线的线宽大致等于所述第一距离的2.5倍。
  22. 一种显示装置，其中，包括如权利要求1～21任一项所述的显示基板。
  23. 如权利要求22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。
  24. 如权利要求23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绑定所述柔性电路板的第一边框区；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/CN2022/121640 2022-09-27 2022-09-27 显示基板及显示装置 Ceased WO2024065162A1 (zh)

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