WO2020150928A1 - 触摸屏、柔性显示面板及柔性显示装置 - Google Patents

触摸屏、柔性显示面板及柔性显示装置 Download PDF

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Publication number
WO2020150928A1
WO2020150928A1 PCT/CN2019/072845 CN2019072845W WO2020150928A1 WO 2020150928 A1 WO2020150928 A1 WO 2020150928A1 CN 2019072845 W CN2019072845 W CN 2019072845W WO 2020150928 A1 WO2020150928 A1 WO 2020150928A1
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WIPO (PCT)
Prior art keywords
circuit board
flexible circuit
touch
electrode
electrode unit
Prior art date
Application number
PCT/CN2019/072845
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English (en)
French (fr)
Inventor
陈柏宇
林源城
Original Assignee
深圳市柔宇科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to PCT/CN2019/072845 priority Critical patent/WO2020150928A1/zh
Priority to CN201980073417.1A priority patent/CN113260962A/zh
Publication of WO2020150928A1 publication Critical patent/WO2020150928A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Definitions

  • the embodiments of the present application relate to the field of display technology, and in particular to a touch screen, a flexible display panel, and a flexible display device.
  • Touch technology is widely used in electronic devices with display screens, such as mobile phones, notebook computers, and so on.
  • the single-ended FPC method requires a too long touch bus to be laid out, and the too long touch bus will greatly affect the driving effect, thereby reducing the touch effect of the touch screen.
  • the embodiments of the present application provide a touch screen, a flexible display panel, and a flexible display device, which can reduce the bus length of the touch bus as a whole.
  • a touch screen including:
  • Touch substrate including touch surface
  • both ends of the first electrode unit are electrically connected to the first flexible circuit board and the second flexible circuit board;
  • the second electrode unit includes a first electrode group close to the first flexible circuit board and a second electrode group close to the second flexible circuit board.
  • the signal terminal of the first electrode group is electrically connected to the first electrode group.
  • the flexible circuit board, the signal end of the second electrode group is electrically connected to the second flexible circuit board.
  • the first flexible circuit board and the second flexible circuit board are oppositely disposed on two sides of the touch substrate.
  • the signal terminal of the first electrode group is opposite to the signal terminal of the second electrode group.
  • the first electrode unit includes a driving electrode unit, a first driving line assembly, and a second driving line assembly;
  • the second electrode unit further includes a receiving wire assembly
  • the wiring input end of the first flexible circuit board is connected to one end of the first drive line assembly, and the other end of the first drive line assembly is connected to one end of the drive electrode unit;
  • the wiring input end of the second flexible circuit board is connected to one end of the second drive line assembly, and the other end of the second drive line assembly is connected to the other end of the drive electrode unit;
  • the touch chip is respectively connected to the wiring output terminal of the first flexible circuit board, the wiring output terminal of the second flexible circuit board, and one end of the receiving wire assembly, and the other end of the receiving wire assembly is respectively connected to The first electrode group and the second electrode group are connected.
  • the receiving wire assembly includes a first receiving wire and a second receiving wire;
  • the first electrode group is connected to the other end of the first receiving line, and one end of the first receiving line is connected to the wiring input end of the first flexible circuit board;
  • the second electrode group is connected to the other end of the second receiving line, and one end of the second receiving line is connected to the wiring input end of the second flexible circuit board.
  • the wiring input terminal of the first flexible circuit board includes a first input terminal and a second input terminal, and the first input terminal is opposite to the second input terminal;
  • One end of the first drive line component is connected to the first input end, and one end of the first receiving line is connected to the second input end;
  • the wiring input terminal of the second flexible circuit board includes a third input terminal and a fourth input terminal, and the third input terminal is opposite to the fourth input terminal;
  • One end of the second drive line component is connected to the third input end, and one end of the second receiving line is connected to the fourth input end.
  • the touch substrate includes several pixel units
  • the touch screen also includes a first display chip and a plurality of display signal lines, the first display chip is packaged between the wiring input end of the first flexible circuit board and one end of the driving electrode unit, and the first The central axis of the display chip coincides with the central axis of the touch surface, one end of each display signal line is connected to each pixel unit, and the other end of each display signal line is connected to the first display Chip connection.
  • the first drive line assembly includes a first drive line and a second drive line;
  • the driving electrode unit includes:
  • a first touch drive electrode one end of the first touch drive electrode is connected to the other end of the first drive line, and one end of the first drive line is connected to the first input terminal;
  • a second touch drive electrode one end of the second touch drive electrode is connected to the other end of the second drive line, and one end of the second drive line is connected to the second input terminal.
  • the touch screen further includes a second display chip packaged between the wiring input end of the second flexible circuit board and the other end of the driving electrode unit, and the second display chip
  • the display chip is symmetrical to the first display chip.
  • the second drive line assembly includes a third drive line and a fourth drive line;
  • the other end of the first touch drive electrode is connected to the other end of the third drive line, one end of the third drive line is connected to the fourth input end of the second flexible circuit board, and the second The other end of the touch drive electrode is connected to the other end of the fourth drive line, and one end of the fourth drive line is connected to the third input end of the second flexible circuit board.
  • a touch screen including:
  • Touch substrate including touch surface
  • the first flexible circuit board
  • a second flexible circuit board A second flexible circuit board
  • the third flexible circuit board is the third flexible circuit board
  • both ends of the first electrode unit are electrically connected to the first flexible circuit board and the second flexible circuit board;
  • the second electrode unit includes a first electrode group close to the first flexible circuit board and a second electrode group close to the second flexible circuit board.
  • the signal terminal of the first electrode group is electrically connected to the first electrode group.
  • Flexible circuit board, the signal end of the second electrode group is electrically connected to the second flexible circuit board, and the third flexible circuit board is respectively connected to the first flexible circuit board, the second flexible circuit board and the Touch chip connection.
  • the signal terminal of the first electrode group and the signal terminal of the second electrode group are arranged on the same side.
  • the first flexible circuit board, the second flexible circuit board, and the third flexible circuit board are arranged on the same side of the touch substrate.
  • the first electrode unit includes a driving electrode unit, a first driving line assembly, and a second driving line assembly;
  • the second electrode unit further includes a receiving wire assembly
  • the wiring input end of the first flexible circuit board is connected to one end of the first drive line assembly, and the other end of the first drive line assembly is connected to one end of the drive electrode unit;
  • the wiring input end of the second flexible circuit board is connected to one end of the second drive line assembly, and the other end of the second drive line assembly is connected to the other end of the drive electrode unit;
  • the third flexible circuit board is located between the first flexible circuit board and the second flexible circuit board, the wiring output terminal of the first flexible circuit board, the wiring output terminal of the second flexible circuit board, and One end of the receiving line assembly is connected to the wiring input end of the third flexible circuit board, the wiring output end of the third flexible circuit board is connected to the touch chip, and the other end of the receiving line assembly is respectively connected Connected with the first electrode group and the second electrode group.
  • the receiving wire assembly includes a first receiving wire and a second receiving wire;
  • the wiring input terminal of the third flexible circuit board includes a fifth input terminal and a sixth input terminal, and the fifth input terminal is opposite to the sixth input terminal;
  • the first electrode group is connected to the other end of the first receiving line, and one end of the first receiving line is connected to the fifth input end;
  • the second electrode group is connected to the other end of the second receiving line, and one end of the second receiving line is connected to the sixth input end.
  • the touch screen further includes a third display chip, a fourth display chip, and a fifth display chip.
  • the third display chip is packaged between the first flexible circuit board and the touch substrate.
  • the fourth display chip is packaged between the third flexible circuit board and the touch substrate, the fifth display chip is packaged between the second flexible circuit board and the touch substrate, and the fourth
  • the central axis of the display chip coincides with the central axis of the touch surface, and the third display chip and the fifth display chip are centrally symmetrical about the central axis of the fourth display chip.
  • a first gap is formed between the fourth display chip and the third display chip
  • a second gap is formed between the fourth display chip and the fifth display chip.
  • a flexible display panel including:
  • the touch screen is arranged on the surface of the thin film transistor substrate.
  • a flexible display device includes: the flexible display panel described above.
  • the touch substrate includes a touch surface
  • the touch electrode layer is disposed on the touch surface
  • the touch electrode layer includes a first electrode unit and a second electrode unit.
  • An electrode unit intersects the second electrode unit, the first flexible circuit board and the second flexible circuit board are electrically connected to the touch chip, and both ends of the first electrode unit are electrically connected to the first flexible circuit board and the second flexible circuit board, respectively
  • the second electrode unit includes a first electrode group close to the first flexible circuit board and a second electrode group close to the second flexible circuit board.
  • the signal terminal of the first electrode group is electrically connected to the first flexible circuit board.
  • the signal terminal is electrically connected to the second flexible circuit board. Therefore, the double-ended FPC method can reduce the bus length of the touch bus as a whole.
  • Fig. 1a is a schematic structural diagram of a touch screen provided by an embodiment of the present application.
  • FIG. 1b is a schematic diagram of the connection between the first flexible circuit board, the second flexible circuit board and the touch chip in FIG. 1a;
  • Fig. 2a is a schematic structural diagram of a touch screen provided by another embodiment of the present application.
  • FIG. 2b is a schematic diagram of the connection between the first flexible circuit board, the second flexible circuit board and the touch chip in FIG. 2a;
  • FIG. 2c is a schematic diagram showing the routing of the signal line, the first driving line and the second driving line in FIG. 2a;
  • FIG. 3 is a schematic structural diagram of a touch screen provided by still another embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a flexible display panel provided by an embodiment of the present application.
  • the embodiment of the application provides a touch screen. Please refer to FIGS. 1 a and 1 b together.
  • the touch screen 100 includes a touch substrate 200, a touch electrode layer 300, a first flexible circuit board 400, a second flexible circuit board 500, and a touch chip 600.
  • the touch substrate 200 includes a touch surface 20a, and the touch electrode layer 300 is disposed on the touch surface 20a.
  • the touch substrate 200 is made of transparent materials such as glass, and is cleaned in advance.
  • the touch substrate 200 may also use a flexible substrate.
  • the flexible substrate includes flexible materials such as thin glass, metal foil, or plastic base.
  • the plastic base has a flexible structure including a flexible structure coated on both sides of the base film.
  • the base film includes such as polyimide (PI), polycarbonate (PC), polyethylene glycol terephthalate (PET), polyethersulfone (PES), polyethylene film (PEN), fiber reinforced plastic ( FRP) and other resins.
  • the touch electrode layer 300 includes a first electrode unit 301 and a second electrode unit 302.
  • the first electrode unit 301 and the second electrode unit 302 intersect.
  • the first electrode unit 301 and the second electrode unit 302 can be respectively disposed at Different structure layers can also be arranged on the same structure layer, and the intersection angle is any suitable angle, for example, the intersection angle is 90 degrees, that is, the first electrode unit 301 is perpendicular to the second electrode unit 302. It is understandable that the intersection angle here can be: when the first electrode unit 301 and the second electrode unit 302 are both disposed on the same structure layer, the first electrode unit 301 and the second electrode unit 302 are both in the structure.
  • the angle of intersection on the plane where the layer is located can also be: when the first electrode unit 301 and the second electrode unit 302 are disposed on different structural layers, the first electrode unit 301 and the second electrode unit 302 are both in the same projection The angle of intersection of the faces.
  • both the first electrode unit 301 and the second electrode unit 302 can form a self-capacitive touch structure, and it can be determined by detecting changes in the respective capacitance values of the first electrode unit 301 and the second electrode unit 302 Touch location. Therefore, the touch screen 100 may be a self-capacitive touch screen.
  • both the first electrode unit 301 and the second electrode unit 302 can form a mutual capacitive touch structure, and the first electrode unit 301 and the second electrode unit 302 form a capacitance at the overlap, and the overlap is detected The change of the capacitance value determines the touch position. Therefore, the touch screen 100 may be a mutual capacitive touch screen.
  • the first electrode unit 301 may be a driving electrode unit, and the second electrode unit 302 may be a sensing electrode unit. It can be understood that, in some embodiments, the first electrode unit 301 may be a sensing electrode unit, and the second electrode unit 302 may be a driving electrode unit.
  • Both the first flexible circuit board 400 and the second flexible circuit board 500 are electrically connected to the touch chip 600 respectively.
  • both ends of the first electrode unit 301 are electrically connected to the first flexible circuit board 400 and the second flexible circuit board 500, that is, one end of the first electrode unit 301 is electrically connected to the first flexible circuit board 400, and the first electrode The other end of the unit 301 is electrically connected to the second flexible circuit board 500.
  • the touch chip 600 sends a signal to one end of the first electrode unit 301 through the first flexible circuit board 400, and the other end of the first electrode unit 301 transmits the signal to the second flexible circuit board 500, and then the second The flexible circuit board 500 then transmits the signal to the touch chip 600.
  • the second electrode unit 302 includes a first electrode group 321 and a second electrode group 322.
  • the first electrode group 321 is close to the first flexible circuit board 400, and the second electrode group 322 is close to the second flexible circuit board.
  • the signal terminal of the first electrode group 321 is electrically connected to the first flexible circuit board 400, and the signal terminal of the second electrode group 322 is electrically connected to the second flexible circuit board 500.
  • the signal terminals of the first electrode group 321 or the second electrode group 322 are ports for transmitting signals.
  • the first electrode group 321 and the second electrode group 322 are used as touch sensing electrode groups
  • the first electrode group 321 Both the signal ends of the second electrode group 322 are used to receive touch sensing signals.
  • the signal terminals of the first electrode group 321 and the second electrode group 322 are both used to receive touch driving signals.
  • the first electrode unit 301 is a driving electrode unit
  • the second electrode unit 302 is a sensing electrode unit.
  • the touch chip 600 sends a driving signal through the first flexible circuit board 400, and the driving signal passes through the first flexible circuit board 400, the first electrode unit 301, the second flexible circuit board 500, and the touch chip 600 in sequence.
  • the corresponding second electrode unit 302 transmits a changed detection signal to the touch chip 600, and the touch chip 600 calculates the coordinates corresponding to the touch operation according to the changed detection signal, thereby determining the touch of the touch operation position.
  • the touch screen 100 provided by the embodiment of the present application uses a double-ended FPC method to lay out drive lines, it is different from the conventional technology in which the other end of the drive electrode unit requires a longer drive line to connect to the same flexible circuit board.
  • one end of the first electrode unit 301 can be connected to the first flexible circuit board 400 through a short drive line, and the other end of the first electrode unit 301 can be connected to the second flexible circuit board 500 through a short drive line. .
  • the signal end of the first electrode group 321 is electrically connected to the first flexible circuit board.
  • the signal terminal of the second electrode group 322 is electrically connected to the second flexible circuit board 500. Therefore, one end of the first electrode group 321 can be connected to the first flexible circuit board 400 through a shorter receiving line. The other end of the group 322 can be connected to the second flexible circuit board 500 through a shorter receiving line.
  • the touch screen 100 can further reduce the parasitic resistance or capacitance caused by the excessively long bus.
  • the drive lines in the traditional technology are arranged on both sides of the frame area of the touch screen.
  • the drive line components provided in the embodiments of the present application are all arranged between the flexible circuit board and the touch substrate. Therefore, it can reduce the frame width and help To achieve a narrow frame design.
  • the first flexible circuit board 400 and the second flexible circuit board 500 are disposed on opposite sides of the touch substrate 200.
  • the touch substrate 200 includes a first side surface 21 and a second side surface 22 opposite to each other.
  • a flexible circuit board 400 is disposed on the first side surface 21, and the second flexible circuit board 500 is disposed on the second side surface 22.
  • the first flexible circuit board 400 and the second flexible circuit board 500 may both be disposed on the same side of the touch substrate 200.
  • the first flexible circuit board 400 may be disposed on the first side of the touch substrate 200, and the second flexible circuit board 500 may be disposed on the second side connected to the first side.
  • the signal terminal of the first electrode group 321 is opposite to the signal terminal of the second electrode group 322.
  • the first electrode unit 301 includes a driving electrode unit 30, a first driving line assembly 31 and a second driving line assembly 32.
  • the second electrode unit 302 further includes a receiving wire assembly 323.
  • the driving electrode unit 30 transmits driving signals through the first driving line assembly 31 or the second driving line assembly 32, and the first electrode group 321 or the second electrode group 322 receives detection signals through the receiving line assembly 323.
  • the driving electrode unit 30 and the first electrode group 321 or the second electrode group 322, and any two of the first driving line assembly 31, the second driving line assembly 32 and the receiving line assembly 323 are insulated from each other.
  • the wiring input end of the first flexible circuit board 400 is connected to one end of the first drive line assembly 31, and the other end of the first drive line assembly 31 is connected to one end of the drive electrode unit 30.
  • the wiring input end of the second flexible circuit board 500 is connected to one end of the second driving line assembly 32, and the other end of the second driving line assembly 32 is connected to the other end of the driving electrode unit 30.
  • the touch chip 600 is respectively connected to the wiring output terminal of the first flexible circuit board 400, the wiring output terminal of the second flexible circuit board 500, and one end of the receiving wire assembly 323, and the other end of the receiving wire assembly 323 is respectively connected to the first electrode group 321 It is connected to the second electrode group 322.
  • the touch chip 600 can receive or send a driving signal through the wiring output terminal of the first flexible circuit board 400.
  • the wiring input terminal of the first flexible circuit board 400 may pass through the first drive line assembly 31. Receive drive signal or send drive signal.
  • the touch chip 600 can receive or send drive signals through the wiring output terminal of the second flexible circuit board 500.
  • the wiring input terminal of the second flexible circuit board 500 can receive and drive through the second drive line assembly 32. Signal or send drive signal.
  • the touch chip 600 receives the detection signal through the receiving line component 323.
  • the touch chip 600 when the touch screen 100 is working, sends a driving signal through the wiring output terminal of the first flexible circuit board 400, and the driving signal sequentially passes through the wiring input terminal of the first flexible circuit board 400 and the first driving line assembly. 31.
  • the corresponding first electrode group 321 or the corresponding second electrode group 322 transmits a change in the detection signal transmitted to the touch chip 600 through the receiving wire assembly 323, and the touch chip 600 calculates according to the changed detection signal Draw out the coordinates corresponding to the touch operation to determine the touch position of the touch operation.
  • the receiving line component 323 includes a first receiving line 3231 and a second receiving line 3232.
  • the first electrode group 321 is arranged on the touch surface 20 a, wherein one end of the first receiving line 3231 is connected to the wiring input end of the first flexible circuit board 400, and the other end of the first receiving line 3231 is connected to the first electrode group 321.
  • the second electrode group 322 is arranged on the touch surface 20a, and the second electrode group 322 is parallel to the first electrode group 321.
  • One end of the second receiving line 3232 is connected to the wiring input end of the second flexible circuit board 500.
  • the second receiving line The other end of the 3232 is connected to the second electrode group 322.
  • the touch screen 100 can divide the receiving wire assembly 323 into two groups of receiving wires, one set of first receiving wires 3231 is connected to the first flexible circuit board 400, and the other set of second receiving wires 3232 is connected to the second flexible circuit board 500. Therefore, as a whole, it can reduce the bus length of the touch bus by reducing the wire length of the receiving line, and reduce the risk of disconnection of the touch bus.
  • the receiving lines in the traditional technology are arranged on both sides of the frame area of the touch screen.
  • each set of receiving lines is connected to the flexible circuit board on the corresponding side, and each set of receiving lines
  • the width of the line in the frame area of the touch screen 100 is smaller than that disclosed in the conventional technology, and therefore, it can reduce the frame width, which helps to realize a narrow frame design.
  • the wiring input terminals of the first flexible circuit board 400 include a first input terminal 41 and a second input terminal 42, and a first input terminal 41 and a second input terminal 42 relative.
  • One end of the first driving line component 31 is connected to the first input end of the first flexible circuit board 400, and one end of the first receiving line 3231 is connected to the second input end 42 of the first flexible circuit board 400.
  • the A driving line component 31 and the first receiving line 3231 are connected to the same side of the first flexible circuit board 400 and there is a probability of signal interference.
  • the wiring input terminals of the second flexible circuit board 500 include a third input terminal 43 and a fourth input terminal 44, and a third input terminal 43 and a fourth input terminal 44 relative.
  • One end of the second driving line component 32 is connected to the third input terminal 43 of the second flexible circuit board 500, and one end of the second receiving line 3232 is connected to the fourth input terminal 44 of the second flexible circuit board 500.
  • the use of the wiring method provided by the embodiment of the present application can reduce the probability of signal interference occurring when the second driving line assembly 32 and the second receiving line 3232 are connected to the same side of the first flexible circuit board 400.
  • the touch substrate 200 includes a plurality of pixel units, and the plurality of pixel units are sequentially arranged on the touch substrate 200.
  • the pixel unit may be an OLED (Organic Light-Emitting Diode, organic light-emitting diode) light-emitting unit, or may be an LCD (Liquid Crystal Display, liquid crystal display) light-emitting unit.
  • OLED Organic Light-Emitting Diode
  • LCD Liquid Crystal Display, liquid crystal display
  • the pixel unit may sequentially include an anode, a hole injection layer, a hole transport layer, an organic light emitting layer, an electron transport layer, an electron injection layer, and a cathode.
  • the touch screen 100 also includes a first display chip 700 and a plurality of display signal lines 800.
  • the first display chip 700 is packaged on the wiring input end of the first flexible circuit board 400 and the driving electrode unit 30. And the central axis of the first display chip 700 coincides with the central axis OO" of the touch surface 20a, one end of each display signal line 800 is connected to each pixel unit, and the other end of each display signal line 800 is connected to The first display chip 700 is connected.
  • the first display chip 700 is placed in the center of the packaging area between the first flexible circuit board 400 and the touch surface 20a, which can avoid placing the first display chip 700 on one side of the packaging area This brings about the problem that the length of each display signal line 800 connected to the corresponding pixel unit is too long.
  • the embodiment of the present application can reduce the length of each display signal line 800 connected to the corresponding pixel unit as a whole.
  • the touch screen 100 further includes a second display chip 900.
  • the second display chip 900 is packaged on the wiring input terminal of the second flexible circuit board 500 and the drive electrode unit 30. Between the other end, and the second display chip 900 is symmetrical to the first display chip 700.
  • the second display chip 900 By adding the second display chip 900, it can improve the display effect of the touch screen 100.
  • the difference from the embodiment illustrated in FIGS. 1a and 1b is that, referring to FIGS. 2a and 2b together, the first driving line assembly 31 includes a first driving line 313 and a second driving line 314 .
  • the driving electrode unit 30 includes a first touch driving electrode 315 and a second touch driving electrode 316.
  • One end of the first driving line 313 is connected to the first input terminal 41 of the first flexible circuit board 400, and the other end of the first driving line 313 is connected to an end of the first touch driving electrode 315 close to the first flexible circuit board 400.
  • One end of the second driving line 314 is connected to the second input terminal 42 of the first flexible circuit board 400, and the other end of the second driving line 314 is connected to the end of the second touch driving electrode 316 close to the first flexible circuit board 400.
  • the second driving line component 32 includes a third driving line 317 and a fourth driving line 318.
  • One end of the third driving line 317 is connected to the fourth input terminal 44 of the second flexible circuit board 500, and the other end of the third driving line 317 is connected to the end of the first touch driving electrode 315 close to the second flexible circuit board 500.
  • One end of the fourth driving line 318 is connected to the third input terminal 43 of the second flexible circuit board 500, and the other end of the fourth driving line 318 is connected to the end of the second touch driving electrode 316 close to the second flexible circuit board 500.
  • the touch screen 100 further includes a third flexible circuit board 1000.
  • the third flexible circuit board 1000 is connected to the first flexible circuit board 400 and the second flexible circuit board respectively.
  • the circuit board 500 and the touch chip 600 are connected.
  • the first flexible circuit board 400, the second flexible circuit board 500, and the third flexible circuit board 1000 are disposed on the same side of the touch substrate 200, and the third flexible circuit board 1000 is located on the first flexible circuit board.
  • the wiring output terminal of the first flexible circuit board 400, the wiring output terminal of the second flexible circuit board 500, and one end of the receiving wire assembly 35 are all connected to the wiring input of the third flexible circuit board 1000
  • the wiring output end of the third flexible circuit board 1000 is connected to the touch chip 600, and the other end of the receiving wire assembly 323 is connected to the first electrode group 321 and the second electrode group 322 respectively.
  • the third flexible circuit board 1000 can summarize the wiring output terminals of the first flexible circuit board 400 and the wiring output terminals of the second flexible circuit board 500, the signal output lines are unified by the wiring output terminals of the third flexible circuit board 1000. It is transmitted to the touch chip 600 and adopts this wiring method. On the one hand, it can regularize the wiring layout and avoid crossing the wiring. On the other hand, it can realize signal transmission with the touch chip 600 by means of the internal circuit of the third flexible circuit board 100 itself, thereby relatively reducing the bus length of the touch bus.
  • the signal terminals of the first electrode group 321 and the signal terminals of the second electrode group 322 are arranged on the same side.
  • the wiring input terminal of the third flexible circuit board 1000 includes a fifth input terminal 45 and a sixth input terminal 46, and the fifth input terminal 45 is opposite to the sixth input terminal 46.
  • One end of the first receiving line 3231 is connected to the fifth input terminal 45 of the third flexible circuit board 1000, and the other end of the first receiving line 3231 is connected to the first electrode group 321.
  • One end of the second receiving line 3232 is connected to the sixth input terminal 46 of the third flexible circuit board 1000, and the other end of the second receiving line 3232 is connected to the second electrode group 322.
  • the third flexible circuit board 1000 is connected to the third flexible circuit board 1000. Therefore, using this type of wiring method, on the one hand, it can avoid introducing the first receiving line 3231 into the wiring input end of the first flexible circuit board 400 and interacting with the first drive line assembly. 31 signal interference occurs, and to avoid introducing the second receiving line 3232 into the wiring input end of the second flexible circuit board 500 to cause signal interference with the second driving line assembly 32. On the other hand, it is beneficial to simplify the wiring design and improve the routing. Line efficiency.
  • the touch screen 100 further includes a third display chip 1100, a fourth display chip 1200, and a fifth display chip 1300.
  • the third display chip 1100 is packaged on the first flexible circuit board 400 and touch Between the substrates 200, the fourth display chip 1200 is packaged between the third flexible circuit board 1000 and the touch substrate 200, the fifth display chip 1300 is packaged between the second flexible circuit board 500 and the touch substrate 200, and the fourth display
  • the central axis of the chip 1200 coincides with the central axis OO" of the touch surface 20a, and the third display chip 1100 and the fifth display chip 1300 are centered symmetrically with respect to the central axis of the fourth display chip 1200.
  • the display chips involved in this article are all connected to corresponding pixel units through display signal lines.
  • the fourth display chip 1200 and its corresponding display signal line provided by the embodiment of the present application, since one end of the first receiving line 3231 is connected to the fifth input terminal 45 of the third flexible circuit board 1000, one end of the second receiving line 3232 is Connected to the sixth input terminal 46 of the third flexible circuit board 1000, therefore, the first receiving line 3231 does not need to cross the display signal line and is connected to the wiring output terminal of the second flexible circuit board 500, or the second receiving line 3232 does not need It is connected to the wiring output terminal of the first flexible circuit board 400 across the display signal line. Therefore, the use of this type of wiring method can reduce the overlapping area of the driving line and the display signal line, thereby reducing the impact of the display signal on touch control. Impact.
  • a first notch 3a1 is formed between the fourth display chip 1200 and the third display chip 1100, and a second notch is formed between the fourth display chip 1200 and the fifth display chip 1300. 3a2.
  • the user can fold the display screen on the side corresponding to the third display chip 1100 and the display screen on the side corresponding to the fourth display chip 1200 in half.
  • the user can fold the display screen on the side corresponding to the fourth display chip 1200 and the display screen on the side corresponding to the fifth display chip 1300 in half.
  • first gap 3a1 and the second gap 3a2 may be retained, or both of them may be retained at the same time.
  • the touch screen 100 adopting this structure can realize horizontal folding and vertical curling.
  • the embodiments of the present application provide a flexible display panel.
  • the flexible display panel 40a includes a thin film transistor substrate 401 and a touch screen 402, and the touch screen 402 is disposed on the surface of the thin film transistor substrate 401.
  • the thin film transistor substrate 401 includes a plurality of thin film transistors, and the thin film transistors are fabricated on the thin film transistor substrate 401 by any suitable process.
  • the thin film transistor substrate 401 may use a flexible substrate.
  • the flexible substrate includes flexible materials such as thin glass, metal foil, or plastic base.
  • the plastic base includes coating on both sides of the base film.
  • the flexible structure, the base film includes such as polyimide (PI), polycarbonate (PC), polyethylene glycol terephthalate (PET), polyethersulfone (PES), polyethylene film (PEN), fiber Reinforced plastic (FRP) and other resins.
  • PI polyimide
  • PC polycarbonate
  • PET polyethylene glycol terephthalate
  • PES polyethersulfone
  • PEN polyethylene film
  • FRP fiber Reinforced plastic
  • the touch screen in the flexible display panel provided in the embodiment of the present application adopts the double-ended FPC method to lay out the driving lines, it can reduce the bus length of the touch bus and reduce the risk of disconnection of the touch bus. Furthermore, since the bus length of the touch bus is reduced, the touch screen can further reduce the parasitic resistance or capacitance caused by the excessively long bus.
  • the drive lines in the traditional technology are arranged on both sides of the frame area of the touch screen.
  • the drive line components provided in the embodiments of the present application are all arranged between the flexible circuit board and the touch substrate. Therefore, it can reduce the frame width and help To achieve a narrow frame design.
  • the embodiments of the present application provide a display device.
  • the display device includes a flexible display panel, and the flexible display panel may be the flexible display panel described in the above embodiments.
  • the touch screen of the display device provided in the embodiment of the present application adopts the double-ended FPC method to lay out the driving lines, it can reduce the bus length of the touch bus and reduce the risk of disconnection of the touch bus. Moreover, since the bus length of the touch bus is reduced, the touch screen can further reduce the parasitic resistance or capacitance caused by the excessively long bus.
  • the drive lines in the traditional technology are arranged on both sides of the frame area of the touch screen.
  • the drive line components provided in the embodiments of the present application are all arranged between the flexible circuit board and the touch substrate. Therefore, it can reduce the frame width and help To achieve a narrow frame design.

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Abstract

一种触摸屏、柔性显示面板及柔性显示装置，触摸屏（100)包括触控基板（200）、触控电极层（300）、第一柔性电路板（400）、第二柔性电路板（500）及触控芯片（600），触控电极层（300）包括第一电极单元（301）与第二电极单元（302），第一电极单元（301）的两端分别电连接第一柔性电路板（400）及第二柔性电路板（500），第二电极单元（302）包括第一电极组（321）与第二电极组（322），第一电极组（321）电连接第一柔性电路板（400），第二电极组（322）电连接第二柔性电路板（500），由于触摸屏（100）采用双端FPC方式，其能够整体上降低触控总线的总线长度。

Description

触摸屏、柔性显示面板及柔性显示装置 技术领域
本申请实施例涉及显示技术领域，尤其涉及一种触摸屏、柔性显示面板及柔性显示装置。
背景技术
触控技术广泛应用于具有显示屏的电子设备中，诸如手机、笔记本电脑等等。
为了集成触控显示功能，人们需要将触控电极集成于显示屏内。一般的，传统技术采用单端FPC(Flexible Printed Circuit，柔性电路板)方式布局触控电极的触控总线。
然而，单端FPC方式需要布局过长的触控总线，过长的触控总线会极大影响驱动效果，从而降低触控显示屏的触控效果。
发明内容
本申请实施例提供一种触摸屏、柔性显示面板及柔性显示装置，其能够整体降低触控总线的总线长度。
本申请实施例解决其技术问题提供以下技术方案：
一种触摸屏，包括：
触控基板，包括触控面；
触控电极层，设置于所述触控面，所述触控电极层包括第一电极单元以及第二电极单元，所述第一电极单元与所述第二电极单元相交；
触控芯片；以及
与所述触控芯片电连接的第一柔性电路板以及第二柔性电路板；
其中，所述第一电极单元的两端分别电连接所述第一柔性电路板以及所述第二柔性电路板；
所述第二电极单元包括靠近所述第一柔性电路板的第一电极组以及靠近所述第二柔性电路板的第二电极组，所述第一电极组的信号端电连接所述第一柔性电路板，所述第二电极组的信号端电连接所述第二柔 性电路板。
可选地，所述第一柔性电路板以及所述第二柔性电路板相对设置于所述触控基板的两侧。
可选地，所述第一电极组的信号端与所述第二电极组的信号端相对设置。
可选地，所述第一电极单元包括驱动电极单元、第一驱动线组件以及第二驱动线组件；
所述第二电极单元还包括接收线组件；
其中，所述第一柔性电路板的接线输入端与所述第一驱动线组件的一端连接，所述第一驱动线组件的另一端与所述驱动电极单元的一端连接；
所述第二柔性电路板的接线输入端与所述第二驱动线组件的一端连接，所述第二驱动线组件的另一端与所述驱动电极单元的另一端连接；
所述触控芯片分别与所述第一柔性电路板的接线输出端、所述第二柔性电路板的接线输出端及所述接收线组件的一端连接，所述接收线组件的另一端分别与所述第一电极组和所述第二电极组连接。
可选地，所述接收线组件包括第一接收线与第二接收线；
所述第一电极组与所述第一接收线的另一端连接，所述第一接收线的一端与所述第一柔性电路板的接线输入端连接；
所述第二电极组与所述第二接收线的另一端连接，所述第二接收线的一端与所述第二柔性电路板的接线输入端连接。
可选地，所述第一柔性电路板的接线输入端包括第一输入端与第二输入端，所述第一输入端与所述第二输入端相对；
所述第一驱动线组件的一端连接至所述第一输入端，所述第一接收线的一端连接至所述第二输入端；
和/或，
所述第二柔性电路板的接线输入端包括第三输入端与第四输入端，所述第三输入端与所述第四输入端相对；
所述第二驱动线组件的一端连接至所述第三输入端，所述第二接收线的一端连接至所述第四输入端。
可选地，所述触控基板包括若干像素单元；
所述触摸屏还包括第一显示芯片与若干显示信号线，所述第一显示芯片封装于所述第一柔性电路板的接线输入端与所述驱动电极单元的一端之间，并且所述第一显示芯片的中心轴与所述触控面的中心轴重合，每个所述显示信号线的一端与每个所述像素单元连接，每个所述显示信号线的另一端与所述第一显示芯片连接。
可选地，所述第一驱动线组件包括第一驱动线与第二驱动线；
所述驱动电极单元包括：
第一触控驱动电极，所述第一触控驱动电极的一端与所述第一驱动线的另一端连接，所述第一驱动线的一端连接至所述第一输入端；
第二触控驱动电极，所述第二触控驱动电极的一端与所述第二驱动线的另一端连接，所述第二驱动线的一端连接至所述第二输入端。
可选地，所述触摸屏还包括第二显示芯片，所述第二显示芯片封装于所述第二柔性电路板的接线输入端与所述驱动电极单元的另一端之间，并且所述第二显示芯片与所述第一显示芯片对称。
可选地，所述第二驱动线组件包括第三驱动线与第四驱动线；
所述第一触控驱动电极的另一端与所述第三驱动线的另一端连接，所述第三驱动线的一端连接至所述第二柔性电路板的第四输入端，所述第二触控驱动电极的另一端与所述第四驱动线的另一端连接，所述第四驱动线的一端连接至所述第二柔性电路板的第三输入端。
本申请实施例解决其技术问题还提供以下技术方案：
一种触摸屏，包括：
触控基板，包括触控面；
触控电极层，设置于所述触控面，所述触控电极层包括第一电极单元以及第二电极单元，所述第一电极单元与所述第二电极单元相交；
触控芯片；
第一柔性电路板；
第二柔性电路板；以及
第三柔性电路板；
其中，所述第一电极单元的两端分别电连接所述第一柔性电路板以及所述第二柔性电路板；
所述第二电极单元包括靠近所述第一柔性电路板的第一电极组以及靠近所述第二柔性电路板的第二电极组，所述第一电极组的信号端电连接所述第一柔性电路板，所述第二电极组的信号端电连接所述第二柔性电路板，所述第三柔性电路板分别与所述第一柔性电路板、所述第二柔性电路板及所述触控芯片连接。
可选地，所述第一电极组的信号端与所述第二电极组的信号端同侧设置。
可选地，所述第一柔性电路板、所述第二柔性电路板以及所述第三柔性电路板设置于所述触控基板的同侧。
可选地，所述第一电极单元包括驱动电极单元、第一驱动线组件以及第二驱动线组件；
所述第二电极单元还包括接收线组件；
其中，所述第一柔性电路板的接线输入端与所述第一驱动线组件的一端连接，所述第一驱动线组件的另一端与所述驱动电极单元的一端连接；
所述第二柔性电路板的接线输入端与所述第二驱动线组件的一端连接，所述第二驱动线组件的另一端与所述驱动电极单元的另一端连接；
所述第三柔性电路板位于所述第一柔性电路板与所述第二柔性电路板之间，所述第一柔性电路板的接线输出端、所述第二柔性电路板的接线输出端以及所述接收线组件的一端皆与所述第三柔性电路板的接线输入端连接，所述第三柔性电路板的接线输出端与所述触控芯片连接，所述接收线组件的另一端分别与所述第一电极组和所述第二电极组连接。
可选地，所述接收线组件包括第一接收线与第二接收线；
所述第三柔性电路板的接线输入端包括第五输入端与第六输入端，所述第五输入端与所述第六输入端相对；
所述第一电极组与所述第一接收线的另一端连接，所述第一接收线的一端与所述第五输入端连接；
所述第二电极组与所述第二接收线的另一端连接，所述第二接收线的一端与所述第六输入端连接。
可选地，所述触摸屏还包括第三显示芯片、第四显示芯片及第五显示芯片，所述第三显示芯片封装于所述第一柔性电路板与所述触控基板之间，所述第四显示芯片封装于所述第三柔性电路板与所述触控基板之间，所述第五显示芯片封装于所述第二柔性电路板与所述触控基板之间，所述第四显示芯片的中心轴与所述触控面的中心轴重合，并且，所述第三显示芯片与所述第五显示芯片关于所述第四显示芯片的中心轴成中心对称。
可选地，所述第四显示芯片与所述第三显示芯片之间开设有第一缺口；
和/或，
所述第四显示芯片与所述第五显示芯片之间开设有第二缺口。
本申请实施例解决其技术问题还提供以下技术方案：
一种柔性显示面板，包括：
薄膜晶体管基板；以及，
所述的触摸屏，设置于所述薄膜晶体管基板的表面。
本申请实施例解决其技术问题还提供以下技术方案：
一种柔性显示装置，包括：所述的柔性显示面板。
与传统技术相比较，在本申请实施例提供的触摸屏中，触控基板包括触控面，触控电极层设置于触控面，触控电极层包括第一电极单元以及第二电极单元，第一电极单元与第二电极单元相交，第一柔性电路板以及第二柔性电路板皆与触控芯片电连接，第一电极单元的两端分别电连接第一柔性电路板以及第二柔性电路板，第二电极单元包括靠近第一柔性电路板的第一电极组以及靠近第二柔性电路板的第二电极组，第一 电极组的信号端电连接第一柔性电路板，第二电极组的信号端电连接第二柔性电路板。因此，采用双端FPC方式，从整体上看，其能够降低触控总线的总线长度。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍。显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1a是本申请实施例提供的一种触摸屏的结构示意图；
图1b是图1a中第一柔性电路板、第二柔性电路板及触控芯片之间的连接示意图；
图2a是本申请另一实施例提供的一种触摸屏的结构示意图；
图2b是图2a中第一柔性电路板、第二柔性电路板及触控芯片之间的连接示意图；
图2c是图2a中显示信号线、第一驱动线及第二驱动线的走线示意图；
图3是本申请再另一实施例提供的一种触摸屏的结构示意图；
图4是本申请实施例提供的一种柔性显示面板的结构示意图。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施例，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“垂直的”、“水平的”、“左”、“右”、“内”、“外”以及类似的表述只是为了说明的目的，并且仅表达实质上的位置关系，例如对于“垂直的”，如果某位置关系因为了实现某目的的缘故并非严格垂直，但实质上是垂直的，或者利用了垂直的特性，则属于本说明书所述“垂直的”范畴。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本申请不同实施例中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
本申请实施例提供一种触摸屏。请一并参阅图1a与图1b，触摸屏100包括：触控基板200、触控电极层300、第一柔性电路板400、第二柔性电路板500及触控芯片600。
触控基板200包括触控面20a，触控电极层300设置于触控面20a。触控基板200采用玻璃等透明材料制成，且经过预先清洗。并且，触控基板200还可以使用柔性基板，柔性基板诸如包括薄玻璃、金属箔片或塑料基底等等具有柔性的材料，例如，塑料基底具有包括涂覆在基膜的两侧上的柔性结构，基膜包括诸如聚酰亚胺(PI)、聚碳酸酯(PC)、聚乙二醇对酞酸酯(PET)、聚醚砜(PES)、聚乙烯薄膜(PEN)、纤维增强塑料(FRP)等等树脂。
触控电极层300包括第一电极单元301以及第二电极单元302，第一电极单元301与第二电极单元302相交，其中，第一电极单元301与第二电极单元302两者可分别设置于不同结构层，两者亦可以设置于同一结构层，相交的角度为任意合适角度，例如，相交的角度为90度，亦即，第一电极单元301垂直于第二电极单元302。可以理解的是，此处的相交角度可以为：当第一电极单元301与第二电极单元302两者设置于同一结构层时，第一电极单元301与第二电极单元302两者在该结构层所在平面上的相交角度，亦可以为：当第一电极单元301与第二电极单元302两者分别设置于不同结构层时，第一电极单元301与第二电极单元302两者在同一投影面上的相交角度。
在一些实施例中，第一电极单元301与第二电极单元302两者可以形成自容式触摸结构，通过检测第一电极单元301与第二电极单元302 两者各自的电容值变化从而判断出触控位置。因此，触摸屏100可以为自容式触摸屏。
在一些实施例中，第一电极单元301与第二电极单元302两者可以形成互容式触摸结构，第一电极单元301与第二电极单元302在交叠处形成电容，通过检测交叠处的电容值的变化而判断出触控位置。因此，触摸屏100可以为互容式触摸屏。
在一些实施例中，第一电极单元301可以为驱动电极单元，第二电极单元302可以为感应电极单元。可以理解的是，在一些实施例中，第一电极单元301可以为感应电极单元，第二电极单元302可以为驱动电极单元。
第一柔性电路板400以及第二柔性电路板500都分别与触控芯片600电连接。并且，第一电极单元301的两端分别电连接第一柔性电路板400以及第二柔性电路板500，亦即，第一电极单元301的一端与第一柔性电路板400电连接，第一电极单元301的另一端与第二柔性电路板500电连接。传输信号时，触控芯片600通过第一柔性电路板400向第一电极单元301的一端发送信号，第一电极单元301的另一端将该信号传输给第二柔性电路板500，然后，第二柔性电路板500再将该信号传输给触控芯片600。
在本实施例中，第二电极单元302包括第一电极组321与第二电极组322，其中，第一电极组321靠近第一柔性电路板400，第二电极组322靠近第二柔性电路板500，第一电极组321的信号端电连接第一柔性电路板400，第二电极组322的信号端电连接第二柔性电路板500。
可以理解的是，第一电极组321或第二电极组322的信号端为传输信号的端口，当第一电极组321与第二电极组322作为触控感应电极组时，第一电极组321与第二电极组322的信号端都用于接收触控感应信号。当第一电极组321与第二电极组322作为触控驱动电极组时，第一电极组321与第二电极组322的信号端都用于接收触控驱动信号。
在一些实施例中，假设第一电极单元301为驱动电极单元，第二电极单元302为感应电极单元。触摸屏100工作时，触控芯片600通过第 一柔性电路板400发送驱动信号，驱动信号依次通过第一柔性电路板400、第一电极单元301、第二柔性电路板500及触控芯片600。当用户输入触控操作时，对应第二电极单元302向触控芯片600传输变化的检测信号，触控芯片600根据变化的检测信号计算出触控操作对应的坐标，从而确定触控操作的触摸位置。
由于本申请实施例提供的触摸屏100采用双端FPC方式布局驱动线，区别于传统技术中驱动电极单元的另一端需要较长的驱动线方可连接至同一柔性电路板的方式，在本实施例中，第一电极单元301的一端通过较短的驱动线便可连接至第一柔性电路板400，第一电极单元301的另一端通过较短的驱动线便可连接至第二柔性电路板500。
并且，还区别于传统技术中感应电极单元的另一端需要较长的接收线方可连接至同一柔性电路板的方式，在本实施例中，第一电极组321的信号端电连接第一柔性电路板400，第二电极组322的信号端电连接第二柔性电路板500，因此，第一电极组321的一端通过较短的接收线便可连接至第一柔性电路板400，第二电极组322的另一端通过较短的接收线便可连接至第二柔性电路板500。
因此，从整体上看，其能够降低触控总线的总线长度，降低触控总线断线的风险。并且，由于触控总线的总线长度得以降低，触摸屏100能够进一步减小总线过长而带来寄生电阻或寄生电容。并且，传统技术中的驱动线布局在触摸屏的边框区两侧，本申请实施例提供的驱动线组件都布局在柔性电路板与触控基板之间，因此，其能够减小边框宽度，有助于实现窄边框设计。
在一些实施例中，第一柔性电路板400以及第二柔性电路板500相对设置于触控基板200的两侧，例如，触控基板200包括相对的第一侧面21与第二侧面22，第一柔性电路板400设置于第一侧面21，第二柔性电路板500设置于第二侧面22。
在一些实施例中，第一柔性电路板400与第二柔性电路板500可以都设置于触控基板200的同一侧。
在一些实施例中，第一柔性电路板400可以设置于触控基板200的 第一侧，第二柔性电路板500可以设置于与第一侧相接的第二侧。
可以理解的是，本申请实施例并不对第一柔性电路板400与第二柔性电路板500的位置作出任何限定。
在一些实施例中，第一电极组321的信号端与第二电极组322的信号端相对设置。采用此类信号走线方式，由于不同电极组的信号输出或输入不在同一侧，其能够降低不同电极组的信号之间的干扰，提高触摸屏100的工作可靠性。
在一些实施例中，第一电极单元301包括驱动电极单元30、第一驱动线组件31以及第二驱动线组件32。第二电极单元302还包括接收线组件323。
驱动电极单元30通过第一驱动线组件31或第二驱动线组件32传输驱动信号，第一电极组321或第二电极组322通过接收线组件323接收检测信号。其中，驱动电极单元30与第一电极组321或第二电极组322之间、第一驱动线组件31、第二驱动线组件32及接收线组件323任意两者之间都是互相绝缘的。
第一柔性电路板400的接线输入端与第一驱动线组件31的一端连接，第一驱动线组件31的另一端与驱动电极单元30的一端连接。
第二柔性电路板500的接线输入端与第二驱动线组件32的一端连接，第二驱动线组件32的另一端与驱动电极单元30的另一端连接。
触控芯片600分别与第一柔性电路板400的接线输出端、第二柔性电路板500的接线输出端及接收线组件323的一端连接，接收线组件323的另一端分别与第一电极组321和第二电极组322连接。
可以理解的是，触控芯片600可以通过第一柔性电路板400的接线输出端接收驱动信号或者发送驱动信号，同理，第一柔性电路板400的接线输入端可以通过第一驱动线组件31接收驱动信号或者发送驱动信号。同理，触控芯片600可以通过第二柔性电路板500的接线输出端接收驱动信号或者发送驱动信号，同理，第二柔性电路板500的接线输入端可以通过第二驱动线组件32接收驱动信号或者发送驱动信号。触控芯片600通过接收线组件323接收检测信号。
在一些实施例中，触摸屏100工作时，触控芯片600通过第一柔性电路板400的接线输出端发送驱动信号，驱动信号依次通过第一柔性电路板400的接线输入端、第一驱动线组件31、驱动电极单元30、第二驱动线组件32、第二柔性电路板500的接线输入端、第二柔性电路板500的接线输出端、触控芯片600。当用户输入触控操作时，对应的第一电极组321或对应的第二电极组322通过接收线组件323传输给触控芯片600的检测信号发送变化，触控芯片600根据变化的检测信号计算出触控操作对应的坐标，从而确定触控操作的触摸位置。
在一些实施例中，请继续一并参阅图1a与图1b，接收线组件323包括第一接收线3231与第二接收线3232。
第一电极组321排列于触控面20a，其中，第一接收线3231的一端与第一柔性电路板400的接线输入端连接，第一接收线3231的另一端与第一电极组321连接。
第二电极组322排列于触控面20a，并且第二电极组322与第一电极组321平行，第二接收线3232的一端与第二柔性电路板500的接线输入端连接，第二接收线3232的另一端与第二电极组322连接。
区别于传统技术中连接多行触控感应电极的多个接收线都需要连接至同一个柔性电路板的方式而带来边框过宽、接收线走线过长等等问题，本申请实施例提供的触摸屏100能够将接收线组件323划分出两组接收线，一组第一接收线3231连接至第一柔性电路板400，另一组第二接收线3232连接至第二柔性电路板500。因此，从整体上看，其能够通过降低接收线的走线长度而降低触控总线的总线长度，降低触控总线断线的风险。并且，传统技术中的接收线布局在触摸屏的边框区两侧，由于本申请实施例将接收线组件323划分出两组接收线，每组接收线连接对应一侧的柔性电路板，每组接收线在触摸屏100的边框区所占的宽度小于传统技术中公开的，因此，其能够减小边框宽度，有助于实现窄边框设计。
在一些实施例中，请继续一并参阅图1a与图1b，第一柔性电路板400的接线输入端包括第一输入端41与第二输入端42，第一输入端41 与第二输入端42相对。第一驱动线组件31的一端连接至第一柔性电路板400的第一输入端，第一接收线3231的一端连接至第一柔性电路板400的第二输入端42。
采用本申请实施例提供的此种走线方式，由于第一驱动线组件31连接至第一柔性电路板400一侧，第一接收线3231连接至第一柔性电路板400另一侧，降低第一驱动线组件31与第一接收线3231之间连接第一柔性电路板400同一侧而出现信号干扰的概率。
在一些实施例中，请继续一并参阅图1a与图1b，第二柔性电路板500的接线输入端包括第三输入端43与第四输入端44，第三输入端43与第四输入端44相对。第二驱动线组件32的一端连接至第二柔性电路板500的第三输入端43，第二接收线3232的一端连接至第二柔性电路板500的第四输入端44。
同理，采用本申请实施例提供的此种走线方式，其能够降低第二驱动线组件32与第二接收线3232之间连接第一柔性电路板400同一侧而出现信号干扰的概率。
在一些实施例中，请继续一并参阅图1a与图1b，触控基板200包括若干像素单元，若干像素单元依次排列于触控基板200上。
像素单元可以为OLED(Organic Light-Emitting Diode，有机发光二极管)发光单元，亦可以为LCD(Liquid Crystal Display，液晶显示器)发光单元。当像素单元为OLED发光单元时，像素单元可以依次包括阳极、空穴注入层、空穴传输层、有机发光层、电子传输层、电子注入层、阴极。
请继续一并参阅图1a与图1b，触摸屏100还包括第一显示芯片700与若干显示信号线800，第一显示芯片700封装于第一柔性电路板400的接线输入端与驱动电极单元30的一端之间，并且第一显示芯片700的中心轴与触控面20a的中心轴OO”重合，每个显示信号线800的一端与每个像素单元连接，每个显示信号线800的另一端与第一显示芯片700连接。
采用此种结构，将第一显示芯片700设置于第一柔性电路板400与 触控面20a之间的封装区的正中央，其能够避免将第一显示芯片700设置于该封装区的一侧而带来连接至对应像素单元的各个显示信号线800的长度过长的问题，本申请实施例可以在整体上减小连接至对应像素单元的各个显示信号线800的长度。
在一些实施例中，请继续一并参阅图1a与图1b，触摸屏100还包括第二显示芯片900，第二显示芯片900封装于第二柔性电路板500的接线输入端与驱动电极单元30的另一端之间，并且第二显示芯片900与第一显示芯片700对称。
通过增设第二显示芯片900，其能够提高触摸屏100的显示效果。
在一些实施例中，与图1a与图1b所阐述的实施例的不同点在于，请一并参阅图2a与图2b，第一驱动线组件31包括第一驱动线313与第二驱动线314。驱动电极单元30包括第一触控驱动电极315与第二触控驱动电极316。
第一驱动线313的一端连接至第一柔性电路板400的第一输入端41，第一驱动线313的另一端与第一触控驱动电极315靠近第一柔性电路板400的一端连接。
第二驱动线314的一端连接至第一柔性电路板400的第二输入端42，第二驱动线314的另一端与第二触控驱动电极316靠近第一柔性电路板400的一端连接。
请参阅图2c，由于第一驱动线313的一端从第一柔性电路板400的第一输入端41引进，第二驱动线314的一端从第一柔性电路板400的第二输入端42引进，其无需第二驱动线314的一端需要横跨第一显示芯片700的显示信号线800而一同汇入第一柔性电路板400的第一输入端41，因此，采用此类走线方式，其能够减小驱动线与显示信号线的交叠面积，从而减少显示信号对触控的影响。
在一些实施例中，请继续一并参阅图2a与图2b，第二驱动线组件32包括第三驱动线317与第四驱动线318。
第三驱动线317的一端连接至第二柔性电路板500的第四输入端 44，第三驱动线317的另一端与第一触控驱动电极315靠近第二柔性电路板500一端连接。
第四驱动线318的一端连接至第二柔性电路板500的第三输入端43，第四驱动线318的另一端与第二触控驱动电极316靠近第二柔性电路板500的一端连接。
同理，由于第三驱动线317的一端从第二柔性电路板500的第四输入端44引进，第四驱动线318的一端从第二柔性电路板500的第三输入端引进，其无需第四驱动线318的一端需要横跨第二显示芯片900的显示信号线800而一同汇入第二柔性电路板500的第四输入端44，因此，采用此类走线方式，其能够减小驱动线与显示信号线的交叠面积，从而减少显示信号对触控的影响。
在一些实施例中，与上述各个实施例的不同点在于，请参阅图3，触摸屏100还包括第三柔性电路板1000，第三柔性电路板1000分别与第一柔性电路板400、第二柔性电路板500及触控芯片600连接。
在一些实施例中，第一柔性电路板400、第二柔性电路板500以及第三柔性电路板1000设置于触控基板200的同侧，并且，第三柔性电路板1000位于第一柔性电路板400与第二柔性电路板500之间，第一柔性电路板400的接线输出端、第二柔性电路板500的接线输出端以及接收线组件35的一端皆与第三柔性电路板1000的接线输入端连接，第三柔性电路板1000的接线输出端与触控芯片600连接，接收线组件323的另一端分别与第一电极组321和第二电极组322连接。
由于第三柔性电路板1000能够汇总第一柔性电路板400的各个接线输出端以及第二柔性电路板500的各个接线输出端后，信号输出线再统一由第三柔性电路板1000的接线输出端传输至触控芯片600，采用此种走线方式，一方面，其能够规整走线布局，避免走线交叉。另一方面，其能够借助第三柔性电路板100本身的内部线路实现与触控芯片600进行信号传输，从而相对地降低触控总线的总线长度。
在一些实施例中，请继续参阅图3，第一电极组321的信号端与第 二电极组322的信号端同侧设置。
在一些实施例中，请继续参阅图3，第三柔性电路板1000的接线输入端包括第五输入端45与第六输入端46，第五输入端45与第六输入端46相对。
第一接收线3231的一端与第三柔性电路板1000的第五输入端45连接，第一接收线3231的另一端与第一电极组321连接。
第二接收线3232的一端与第三柔性电路板1000的第六输入端46连接，第二接收线3232的另一端与第二电极组322连接。
由于第一接收线3231的一端不再经过第一柔性电路板400的接线输入端而接入第三柔性电路板1000，第二接收线3232的一端不再经过第二柔性电路板500的接线输入端而接入第三柔性电路板1000，因此，采用此类走线方式，一方面，其能够避免将第一接收线3231引入第一柔性电路板400的接线输入端而与第一驱动线组件31出现信号干扰，以及，避免将第二接收线3232引入第二柔性电路板500的接线输入端而与第二驱动线组件32出现信号干扰，另一方面，有利于简化走线设计，提高走线效率。
在一些实施例中，请继续参阅图3，触摸屏100还包括第三显示芯片1100、第四显示芯片1200及第五显示芯片1300，第三显示芯片1100封装于第一柔性电路板400与触控基板200之间，第四显示芯片1200封装于第三柔性电路板1000与触控基板200之间，第五显示芯片1300封装于第二柔性电路板500与触控基板200之间，第四显示芯片1200的中心轴与触控面20a的中心轴OO”重合，并且，第三显示芯片1100与第五显示芯片1300关于第四显示芯片1200的中心轴成中心对称。
本文涉及的显示芯片皆通过显示信号线与对应的像素单元连接。对于本申请实施例提供的第四显示芯片1200及其对应的显示信号线，由于第一接收线3231的一端连接至第三柔性电路板1000的第五输入端45，第二接收线3232的一端连接至第三柔性电路板1000的第六输入端46，因此，第一接收线3231无需横跨显示信号线而连接至第二柔性电路板500的接线输出端，或者，第二接收线3232无需横跨显示信号线 而连接至第一柔性电路板400的接线输出端，因此，采用此类走线方式，其能够减小驱动线与显示信号线的交叠面积，从而减少显示信号对触控的影响。
在一些实施例中，请继续参阅图3，第四显示芯片1200与第三显示芯片1100之间开设有第一缺口3a1，第四显示芯片1200与第五显示芯片1300之间开设有第二缺口3a2。
以第一缺口3a1为折叠线，用户可以将第三显示芯片1100对应侧的显示屏幕与第四显示芯片1200对应侧的显示屏幕对折。
以第二缺口3a2为折叠线，用户可以将第四显示芯片1200对应侧的显示屏幕与第五显示芯片1300对应侧的显示屏幕对折。
可以理解的是，在一些实施例中，第一缺口3a1与第二缺口3a2可以只保留其中一个，或者两者同时保留。
因此，采用此种结构的触摸屏100，其能够实现水平方向折叠以及垂直方向卷曲。
作为本申请实施例另一方面，本申请实施例提供一种柔性显示面板。请参阅图4，柔性显示面板40a包括薄膜晶体管基板401与触摸屏402，触摸屏402设置于薄膜晶体管基板401的表面。
薄膜晶体管基板401包括若干薄膜晶体管，薄膜晶体管通过任何合适工艺制作于薄膜晶体管基板401上。
在一些实施例中，薄膜晶体管基板401可以使用柔性基板，柔性基板诸如包括薄玻璃、金属箔片或塑料基底等等具有柔性的材料，例如，塑料基底具有包括涂覆在基膜的两侧上的柔性结构，基膜包括诸如聚酰亚胺(PI)、聚碳酸酯(PC)、聚乙二醇对酞酸酯(PET)、聚醚砜(PES)、聚乙烯薄膜(PEN)、纤维增强塑料(FRP)等等树脂。
由于本申请实施例提供柔性显示面板中的触摸屏采用双端FPC方式布局驱动线，从整体上看，其能够降低触控总线的总线长度，降低触控总线断线的风险。并且，由于触控总线的总线长度得以降低，触摸屏能够进一步减小总线过长而带来寄生电阻或寄生电容。并且，传统技术 中的驱动线布局在触摸屏的边框区两侧，本申请实施例提供的驱动线组件都布局在柔性电路板与触控基板之间，因此，其能够减小边框宽度，有助于实现窄边框设计。
作为本申请实施例再另一方面，本申请实施例提供一种显示装置。显示装置包括柔性显示面板，柔性显示面板可以为上述实施例所阐述的柔性显示面板。
由于本申请实施例提供显示装置的触摸屏采用双端FPC方式布局驱动线，从整体上看，其能够降低触控总线的总线长度，降低触控总线断线的风险。并且，由于触控总线的总线长度得以降低，触摸屏能够进一步减小总线过长而带来寄生电阻或寄生电容。并且，传统技术中的驱动线布局在触摸屏的边框区两侧，本申请实施例提供的驱动线组件都布局在柔性电路板与触控基板之间，因此，其能够减小边框宽度，有助于实现窄边框设计。
本领域技术人员可以理解，本说明书中各实施例所描述工艺及材料仅为示例性，本申请实施例可以使用未来开发的适用于本申请的任何工艺或材料。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；在本申请的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本申请的不同方面的许多其它变化，为了简明，它们没有在细节中提供；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (19)

  1. 一种触摸屏，其特征在于，包括：
    触控基板，包括触控面；
    触控电极层，设置于所述触控面，所述触控电极层包括第一电极单元以及第二电极单元，所述第一电极单元与所述第二电极单元相交；
    触控芯片；以及
    与所述触控芯片电连接的第一柔性电路板以及第二柔性电路板；
    其中，所述第一电极单元的两端分别电连接所述第一柔性电路板以及所述第二柔性电路板；
    所述第二电极单元包括靠近所述第一柔性电路板的第一电极组以及靠近所述第二柔性电路板的第二电极组，所述第一电极组的信号端电连接所述第一柔性电路板，所述第二电极组的信号端电连接所述第二柔性电路板。
  2. 根据权利要求1所述的触摸屏，其特征在于，所述第一柔性电路板以及所述第二柔性电路板相对设置于所述触控基板的两侧。
  3. 根据权利要求1所述的触摸屏，其特征在于，所述第一电极组的信号端与所述第二电极组的信号端相对设置。
  4. 根据权利要求1至3任一项所述的触摸屏，其特征在于，
    所述第一电极单元包括驱动电极单元、第一驱动线组件以及第二驱动线组件；
    所述第二电极单元还包括接收线组件；
    其中，所述第一柔性电路板的接线输入端与所述第一驱动线组件的一端连接，所述第一驱动线组件的另一端与所述驱动电极单元的一端连接；
    所述第二柔性电路板的接线输入端与所述第二驱动线组件的一端连接，所述第二驱动线组件的另一端与所述驱动电极单元的另一端连接；
    所述触控芯片分别与所述第一柔性电路板的接线输出端、所述第二 柔性电路板的接线输出端及所述接收线组件的一端连接，所述接收线组件的另一端分别与所述第一电极组和所述第二电极组连接。
  5. 根据权利要求4所述的触摸屏，其特征在于，
    所述接收线组件包括第一接收线与第二接收线；
    所述第一电极组与所述第一接收线的另一端连接，所述第一接收线的一端与所述第一柔性电路板的接线输入端连接；
    所述第二电极组与所述第二接收线的另一端连接，所述第二接收线的一端与所述第二柔性电路板的接线输入端连接。
  6. 根据权利要求5所述的触摸屏，其特征在于，
    所述第一柔性电路板的接线输入端包括第一输入端与第二输入端，所述第一输入端与所述第二输入端相对；
    所述第一驱动线组件的一端连接至所述第一输入端，所述第一接收线的一端连接至所述第二输入端；
    和/或，
    所述第二柔性电路板的接线输入端包括第三输入端与第四输入端，所述第三输入端与所述第四输入端相对；
    所述第二驱动线组件的一端连接至所述第三输入端，所述第二接收线的一端连接至所述第四输入端。
  7. 根据权利要求6所述的触摸屏，其特征在于，
    所述触控基板包括若干像素单元；
    所述触摸屏还包括第一显示芯片与若干显示信号线，所述第一显示芯片封装于所述第一柔性电路板的接线输入端与所述驱动电极单元的一端之间，并且所述第一显示芯片的中心轴与所述触控面的中心轴重合，每个所述显示信号线的一端与每个所述像素单元连接，每个所述显示信号线的另一端与所述第一显示芯片连接。
  8. 根据权利要求7所述的触摸屏，其特征在于，
    所述第一驱动线组件包括第一驱动线与第二驱动线；
    所述驱动电极单元包括：
    第一触控驱动电极，所述第一触控驱动电极的一端与所述第一驱动 线的另一端连接，所述第一驱动线的一端连接至所述第一输入端；
    第二触控驱动电极，所述第二触控驱动电极的一端与所述第二驱动线的另一端连接，所述第二驱动线的一端连接至所述第二输入端。
  9. 根据权利要求7所述的触摸屏，其特征在于，
    所述触摸屏还包括第二显示芯片，所述第二显示芯片封装于所述第二柔性电路板的接线输入端与所述驱动电极单元的另一端之间，并且所述第二显示芯片与所述第一显示芯片对称。
  10. 根据权利要求9所述的触摸屏，其特征在于，
    所述第二驱动线组件包括第三驱动线与第四驱动线；
    所述第一触控驱动电极的另一端与所述第三驱动线的另一端连接，所述第三驱动线的一端连接至所述第二柔性电路板的第四输入端，所述第二触控驱动电极的另一端与所述第四驱动线的另一端连接，所述第四驱动线的一端连接至所述第二柔性电路板的第三输入端。
  11. 一种触摸屏，其特征在于，包括：
    触控基板，包括触控面；
    触控电极层，设置于所述触控面，所述触控电极层包括第一电极单元以及第二电极单元，所述第一电极单元与所述第二电极单元相交；
    触控芯片；
    第一柔性电路板；
    第二柔性电路板；以及
    第三柔性电路板；
    其中，所述第一电极单元的两端分别电连接所述第一柔性电路板以及所述第二柔性电路板；
    所述第二电极单元包括靠近所述第一柔性电路板的第一电极组以及靠近所述第二柔性电路板的第二电极组，所述第一电极组的信号端电连接所述第一柔性电路板，所述第二电极组的信号端电连接所述第二柔性电路板，所述第三柔性电路板分别与所述第一柔性电路板、所述第二柔性电路板及所述触控芯片连接。
  12. 根据权利要求11所述的触摸屏，其特征在于，所述第一电极 组的信号端与所述第二电极组的信号端同侧设置。
  13. 根据权利要求11所述的触摸屏，其特征在于，所述第一柔性电路板、所述第二柔性电路板以及所述第三柔性电路板设置于所述触控基板的同侧。
  14. 根据权利要求13所述的触摸屏，其特征在于，
    所述第一电极单元包括驱动电极单元、第一驱动线组件以及第二驱动线组件；
    所述第二电极单元还包括接收线组件；
    其中，所述第一柔性电路板的接线输入端与所述第一驱动线组件的一端连接，所述第一驱动线组件的另一端与所述驱动电极单元的一端连接；
    所述第二柔性电路板的接线输入端与所述第二驱动线组件的一端连接，所述第二驱动线组件的另一端与所述驱动电极单元的另一端连接；
    所述第三柔性电路板位于所述第一柔性电路板与所述第二柔性电路板之间，所述第一柔性电路板的接线输出端、所述第二柔性电路板的接线输出端以及所述接收线组件的一端皆与所述第三柔性电路板的接线输入端连接，所述第三柔性电路板的接线输出端与所述触控芯片连接，所述接收线组件的另一端分别与所述第一电极组和所述第二电极组连接。
  15. 根据权利要求14所述的触摸屏，其特征在于，
    所述接收线组件包括第一接收线与第二接收线；
    所述第三柔性电路板的接线输入端包括第五输入端与第六输入端，所述第五输入端与所述第六输入端相对；
    所述第一电极组与所述第一接收线的另一端连接，所述第一接收线的一端与所述第五输入端连接；
    所述第二电极组与所述第二接收线的另一端连接，所述第二接收线的一端与所述第六输入端连接。
  16. 根据权利要求15所述的触摸屏，其特征在于，
    所述触摸屏还包括第三显示芯片、第四显示芯片及第五显示芯片，所述第三显示芯片封装于所述第一柔性电路板与所述触控基板之间，所述第四显示芯片封装于所述第三柔性电路板与所述触控基板之间，所述第五显示芯片封装于所述第二柔性电路板与所述触控基板之间，所述第四显示芯片的中心轴与所述触控面的中心轴重合，并且，所述第三显示芯片与所述第五显示芯片关于所述第四显示芯片的中心轴成中心对称。
  17. 根据权利要求16所述的触摸屏，其特征在于，
    所述第四显示芯片与所述第三显示芯片之间开设有第一缺口；
    和/或，
    所述第四显示芯片与所述第五显示芯片之间开设有第二缺口。
  18. 一种柔性显示面板，其特征在于，包括：
    薄膜晶体管基板；以及，
    如权利要求1至17任一项所述的触摸屏，设置于所述薄膜晶体管基板的表面。
  19. 一种柔性显示装置，其特征在于，包括如权利要求18所述的柔性显示面板。
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CN106293209A (zh) * 2016-07-29 2017-01-04 厦门天马微电子有限公司 一种集成触控显示面板及其触控显示设备
CN106066740A (zh) * 2016-08-02 2016-11-02 厦门天马微电子有限公司 触控显示面板和触控显示装置
CN109240545A (zh) * 2018-09-26 2019-01-18 深圳市华科创智技术有限公司 一种可折叠触控模组、触摸屏及终端设备

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