WO2021128581A1 - 一种自容式触控显示面板 - Google Patents

一种自容式触控显示面板 Download PDF

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Publication number
WO2021128581A1
WO2021128581A1 PCT/CN2020/077392 CN2020077392W WO2021128581A1 WO 2021128581 A1 WO2021128581 A1 WO 2021128581A1 CN 2020077392 W CN2020077392 W CN 2020077392W WO 2021128581 A1 WO2021128581 A1 WO 2021128581A1
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WO
WIPO (PCT)
Prior art keywords
touch
layer
display panel
area
self
Prior art date
Application number
PCT/CN2020/077392
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English (en)
French (fr)
Inventor
陈碧
Original Assignee
武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/769,253 priority Critical patent/US11609663B2/en
Priority to EP20771416.3A priority patent/EP4083761A4/en
Priority to KR1020217005296A priority patent/KR20210086598A/ko
Priority to JP2021503532A priority patent/JP2022518086A/ja
Publication of WO2021128581A1 publication Critical patent/WO2021128581A1/zh

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Classifications

    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • 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
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • 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; CALCULATING OR 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; CALCULATING OR 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

Definitions

  • This application relates to the field of display technology, and in particular to a self-capacitive touch display panel.
  • the panel in the prior art, the panel usually adopts AMOLED, and the touch solution in AMOLED is a mutual capacitive touch solution.
  • a thin cover design is usually adopted, and the material is selected. Transparent PI (polyimide) material or flexible glass and combinations thereof, the thickness of the cover plate is 50um ⁇ 200um, and the thin cover plate design causes the multi-point floating report problem in mutual capacitive touch, which makes the user's touch experience poor ;
  • AMOLED The self-capacitive type in the oncell touch solution can effectively solve the problem of multi-point floating touch, but there are problems in the self-capacitive touch design: as shown in Figure 1, the self-capacitive touch design is close to the FPC (flexible circuit board) end Too many leads in the near-end touch pattern cause the influence of the touch blind zone.
  • the embodiment of the present invention provides a self-capacitive touch display panel.
  • a touch shielding layer between the touch sensing layer and the touch lead layer, the sizes of the self-capacitive touch patterns at the near end and the far end of the touch are the same. , To ensure that the touch performance of the near end and the far end are consistent, and to improve the touch performance of the flexible touch display panel.
  • an embodiment of the present application provides a self-contained touch display panel, wherein the self-contained touch display panel includes a display panel and a touch layer disposed on the display panel;
  • the touch layer includes: a touch lead layer disposed on the display panel and having a plurality of touch leads, a first insulating layer disposed on the touch lead layer, and a first insulating layer disposed on the first insulating layer A touch shielding layer on the upper side, a second insulating layer disposed on the touch shielding layer, and a touch sensing layer disposed on the second insulating layer and having sensing patterns arranged in an array;
  • the sensing pattern of the touch sensing layer is in correspondence with the touch leads of the touch lead layer through the touch shielding layer;
  • the touch shielding layer includes: a first touch shielding layer and a second touch shielding layer, and the second touch shielding layer is disposed between the first insulating layer and the second insulating layer;
  • the display panel includes a light-emitting area and a non-light-emitting area
  • the non-light-emitting area includes: a bending area, a wire change area, and a bonding area
  • the touch leads of the touch lead layer are connected to the wire change area after being bent in the bending area;
  • the wire change area is arranged on the side of the bending area away from the touch lead layer; the touch wires of the touch lead layer are changed from the bending area to the state in the wire change area.
  • the bonding area is arranged on a side of the wire changing area away from the bending area.
  • a first via hole is provided on the first insulating layer, a second via hole is provided on the second insulating layer, and a second via hole is provided between the first via hole and the second via hole.
  • the first touch shielding layer; the sensing pattern of the touch sensing layer communicates with the touch leads of the touch lead layer through the first touch shielding layer.
  • the first via and the second via are coaxial, and the opening width of the first via is smaller than the opening width of the second via.
  • the bonding area includes a touch bonding area and a display bonding area
  • the touch bonding area includes a plurality of touch bonding terminals
  • the display bonding area includes a plurality of display bonding terminals.
  • the touch leads of the touch lead layer are connected to the touch terminals; the display bonding terminals are connected to the display drive provided on the display panel.
  • the wire change area includes a first wire change area and a second wire change area, and both the first wire change area and the second wire change area include at least two MUX circuits connected in series.
  • the MUX circuit is one of a PMOS structure, an NMOS structure, and a CMOS structure.
  • the material of the first insulating layer and the second insulating layer is one of silicon nitride and silicon oxide or a combination thereof.
  • the material of the touch lead layer, touch shielding layer, and touch sensing layer is indium tin oxide or a combination of indium tin oxide and silver or a combination of indium tin oxide and aluminum.
  • an embodiment of the present application further provides a self-capacitive touch display panel, wherein the self-capacitive touch display panel includes a display panel and a touch layer disposed on the display panel;
  • the touch layer includes: a touch lead layer disposed on the display panel and having a plurality of touch leads, a first insulating layer disposed on the touch lead layer, and a first insulating layer disposed on the first insulating layer A touch shielding layer on the upper side, a second insulating layer disposed on the touch shielding layer, and a touch sensing layer disposed on the second insulating layer and having sensing patterns arranged in an array;
  • the sensing pattern of the touch sensing layer communicates with the touch leads of the touch lead layer through the touch shielding layer.
  • the touch shielding layer includes: a first touch shielding layer and a second touch shielding layer, and the second touch shielding layer is disposed between the first insulating layer and the second insulating layer. between.
  • a first via hole is provided on the first insulating layer, a second via hole is provided on the second insulating layer, and a second via hole is provided between the first via hole and the second via hole.
  • the first touch shielding layer; the sensing pattern of the touch sensing layer communicates with the touch leads of the touch lead layer through the first touch shielding layer.
  • the first via and the second via are coaxial, and the opening width of the first via is smaller than the opening width of the second via.
  • the display panel includes a light-emitting area and a non-light-emitting area, and the non-light-emitting area includes a bending area, a wire change area, and a bonding area;
  • the touch leads of the touch lead layer are connected to the wire change area after being bent in the bending area;
  • the wire change area is arranged on the side of the bending area away from the touch lead layer; the touch wires of the touch lead layer are changed from the bending area to the state in the wire change area.
  • the bonding area is arranged on a side of the wire changing area away from the bending area.
  • the bonding area includes a touch bonding area and a display bonding area
  • the touch bonding area includes a plurality of touch bonding terminals
  • the display bonding area includes a plurality of display bonding terminals.
  • the touch leads of the touch lead layer are connected to the touch terminals; the display bonding terminals are connected to the display drive provided on the display panel.
  • the wire change area includes a first wire change area and a second wire change area, and both the first wire change area and the second wire change area include at least two MUX circuits connected in series.
  • the MUX circuit is one of a PMOS structure, an NMOS structure, and a CMOS structure.
  • the material of the first insulating layer and the second insulating layer is one of silicon nitride and silicon oxide or a combination thereof.
  • the material of the touch lead layer, touch shielding layer, and touch sensing layer is indium tin oxide or a combination of indium tin oxide and silver or a combination of indium tin oxide and aluminum.
  • the self-capacitive touch display panel further includes an encapsulation layer disposed above the display panel and below the touch layer.
  • the self-capacitive touch display panel further includes a touch protective insulating layer disposed above the touch layer, a polarizer disposed above the touch protective insulating layer, and a polarizer disposed above the touch protective insulating layer.
  • the protective cover above the polarizer.
  • the size of the self-capacitive touch patterns at the near end and the far end of the touch is the same to ensure that the proximity
  • the touch performance of the remote end and the remote end are the same, which improves the touch performance of the flexible touch display panel.
  • this application also adds a wire-changing area on the display panel to process the touch leads of the touch-lead layer through the wire-changing area. Under the condition that the number of sensing patterns on the touch-sensing layer remains unchanged, the touch leads will be led to the touch-sensing layer.
  • the number of touch leads of the control bonding terminal is reduced, so as to reserve the position of the display bonding area, which is convenient to realize on the oncell; thus, the display bonding area and the touch bonding area are distinguished, and the touch leads and the display are avoided. Excessive concentration of leads to avoid signal interference.
  • FIG. 1 is a diagram of a self-capacitive touch design scheme of a flexible touch display panel in the prior art
  • FIG. 2 is a schematic structural diagram of a self-capacitive touch display panel provided by an embodiment of the present invention
  • FIG. 3 is a schematic diagram of touch leads of a self-capacitive touch display panel according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a structure at a position of a via hole of a self-capacitive touch display panel according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a display panel of a self-capacitive touch display panel provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the MUX circuit principle of a self-capacitive touch display panel provided by an embodiment of the present invention.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present invention, “plurality” means two or more than two, unless otherwise specifically defined.
  • the embodiment of the present invention provides a self-capacitive touch display panel. Detailed descriptions are given below.
  • the self-contained touch display panel includes: a display panel 100 stacked in sequence from bottom to top, an encapsulation layer 200, and a touch layer 300, touch protection insulating layer 400, polarizer 500 and protective cover 600;
  • display panel 100 can be AMOLED (Active-matrix organic light-emitting diode), namely: active matrix organic light-emitting diode, which is a flexible panel
  • the encapsulation layer 200 is used to encapsulate the display panel 100 to protect the display panel 100 and prevent water vapor and oxygen from corroding the display panel 100;
  • the touch protection insulating layer 400 is used to protect the touch layer 300;
  • the polarizing layer 500 is used To convert natural light into polarized light;
  • the cover plate 600 is a flexible cover plate, and the cover plate 600 is used to protect the polarizing layer 500 and all the structures below.
  • the material of the cover plate 600 can be transparent PI (polyimide
  • the touch layer 300 includes: a touch lead layer 301 provided on the packaging layer 200 and having multiple touch leads, a first insulating layer 302 provided on the touch lead layer 301, and a first insulating layer 302 provided on the first insulating layer 302.
  • the material of the second insulating layer 304 is one of silicon nitride, silicon oxide or a combination thereof, which improves its water and oxygen blocking performance and improves the safety factor; touch lead layer 301, touch shield layer 303, touch sensor layer
  • the material of 305 is indium tin oxide or a combination of indium tin oxide and silver or a combination of indium tin oxide and aluminum;
  • the sensing pattern of the touch sensing layer 305 is in correspondence with the touch leads of the touch lead layer 301 through the touch shielding layer 303.
  • the display panel 100 includes a light-emitting area 101 and a non-light-emitting area 102.
  • the touch sensing layer 305 forms a number of sensing patterns for self-capacitive touch sensing.
  • the plurality of sensing patterns are distributed in an array, and each sensing pattern passes through
  • the via area A provided in the lower right corner thereof is correspondingly connected to the touch leads of the corresponding touch lead layer 301 below, and the touch sensing layer 305 communicates with the touch lead layer 301 through the touch shielding layer 303, so that the sensing pattern is in
  • the light-emitting areas 101 of the display panel 100 can be arranged in equal sizes and equal distances, so that there is no blind area in the conventional self-capacitive touch solution at the near end of the touch, and the touch effect of the near end and the far end is consistent.
  • the via area A is generally arranged under each sensing pattern, and may be arranged in the lower left corner or the lower right corner, which is not limited here.
  • the touch shielding layer 303 includes: a first touch shielding layer 303b and a second touch shielding layer 303a, and the second touch shielding layer 303a is disposed on the first insulating layer 302 and the second insulating layer 303a. Between the layers 304, the second touch shielding layer 303a is grounded to shield the signal interference of the touch leads to the touch sensing layer 305 and improve the touch performance.
  • the specific structure of the via area A is as follows: a first via 3021 is provided on the first insulating layer 302, a second via 3041 is provided on the second insulating layer 304, and between the first via 3021 and the second via 3041 A first touch shielding layer 303b is provided in between; the sensing pattern of the touch sensing layer 305 communicates with the touch leads of the touch lead layer 301 through the first touch shielding layer 303b.
  • first via 3021 and the second via 3041 are coaxial, and the opening width d1 of the first via 3041 is smaller than the opening width d2 of the second via 3042.
  • the non-light emitting area 102 includes: a bending area 110, a wire changing area 120, and a bonding area 130;
  • the touch leads of the touch lead layer 301 are connected to the wire change area 120 after being bent in the bending area 110;
  • the wire change area 120 is arranged on the side of the bending area 110 away from the touch lead layer 301; the touch wires of the touch lead layer 301 are changed from the bending area 110 to the bonding area 130 in the wire change area 120;
  • the bonding area 130 is disposed on the side of the wire changing area 120 away from the bending area 110.
  • two bending zones are provided, namely the first bending zone 111 and the second bending zone 112.
  • the first bending zone 111 and the second bending zone 112 are arranged in Both sides of the light-emitting area 102; wherein, the touch leads of the touch lead layer 301 are divided into two groups and connected to the first bending area 111 and the second bending area 112, leaving a space in the middle of the display panel 100 to avoid displaying The signals of the display area and the touch area on the panel 100 interfere to ensure the touch performance.
  • the present application is provided with two wire changing areas, namely a first wire changing area 121 and a second wire changing area 122, the first wire changing area 121 and the second wire changing area 122 respectively correspond to the first bending area 111 is connected to the second bending area 112, and both the first swapping area 121 and the second swapping area 122 include at least two serially connected MUX (multiplexer, data selector) circuits, and the two serially connected MUX circuits are respectively MUX1 And MUX2.
  • MUX multiplexer, data selector
  • the bonding area 130 includes a touch bonding area 131 and a display bonding area 132
  • the touch bonding area 131 includes a number of touch bonding terminals 1311
  • the display bonding area 132 includes a number of display bonding terminals 1321;
  • two touch bonding areas are provided, namely the first touch bonding area 1301 and the second touch bonding area 1302, the first touch bonding area 1301 and the second touch bonding area 1302.
  • the touch bonding area 1302 is respectively connected to the first wire changing area 121 and the second wire changing area 122, and both the first touch bonding area 1301 and the second touch bonding area 1302 include a number of touch binding terminals 1311;
  • the touch lead of the touch lead layer 301 is connected to the touch terminal 1311;
  • the display bonding terminal 1321 is connected to the display driver 140 disposed on the non-light emitting area 102, and the other end of the display driver 140 is connected to the light emitting area 101.
  • the first touch bonding area 1301 and the second touch bonding area 1302 are respectively on both sides of the non-light-emitting area 102, and the display bonding area 132 is set in the non-light-emitting area 102. in the middle.
  • the MUX circuit can be a PMOS (positive channel Metal Oxide Semiconductor, P-type metal oxide semiconductor) structure, NMOS (Negative channel Metal Oxide Semiconductor, N-type metal oxide semiconductor) structure, CMOS (Complementary Metal Oxide Semiconductor, Complementary metal oxide semiconductor) structure.
  • PMOS positive channel Metal Oxide Semiconductor, P-type metal oxide semiconductor
  • NMOS Negative channel Metal Oxide Semiconductor, N-type metal oxide semiconductor
  • CMOS Complementary Metal Oxide Semiconductor, Complementary metal oxide semiconductor
  • the MUX circuit includes two drains, 4 gates, 8 sources, and 8 PMOS structures.
  • the two drains are respectively D1 and D2, 4 source gates are G1, G2, G3 and G4, 8 sources are S1, S2, S3, S4, S5, S6, S7 and S8, 8 PMOS structures are T1, T2, T3, T4, T5, T6, T7 and T8;
  • the specific principle is: control the opening or closing of T1, T2, T3 and T4 through the gate G1, G2, G3, G4, in the same time period T1, T2, Only one of the four T3 and T4 is selected to be turned on, and the other three are in the off state, which can control the driving and sensing of the drain D1 to S1, S2, S3 and S4 in turn, and control the drain D2 to S5, S6, S7 and S8 is driven and sensed in sequence, so that the number of channels of touch leads can be reduced to 1/4 of the original.
  • the MUX circuit can be one or a combination of 2:1 MUX circuit, 3:1 MUX circuit, 4:1 MUX circuit, or 5:1 MUX circuit, when a 4:1 MUX circuit is connected in series with a 3:1 MUX circuit. , Which can reduce the number of channels to 1/12 of the original, greatly reducing the number of oncell self-capacitive touch bonds, and reserve enough space so that the display bonding area 132 is not affected, so as to ensure that the touch function is not affected at the same time. The normal light emission of the display panel 100 is affected.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Position Input By Displaying (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

公开一种自容式触控显示面板，该自容式触控显示面板包括显示面板与设置于显示面板上的触控层；触控层包括依次设置于显示面板上且具有多条触控引线的触控引线层、第一绝缘层、触控屏蔽层、第二绝缘层，以及具有阵列排列的感应图案的触控感应层；其中，触控感应层的感应图案通过触控屏蔽层与触控引线对应连通。

Description

一种自容式触控显示面板 技术领域
本申请涉及显示技术领域，具体涉及一种自容式触控显示面板。
 背景技术
随着时代的发展，手机作为重要的电子产品影响着人们的生活及工作，其触控显示作为人机交互的重要部分必不可少，柔性触控显示逐渐成为未来的主流发展方向，在柔性触控显示中需要将触控显示面板做的更加轻薄以便能实现更小的弯折半径。
现有技术中，在柔性显示触控中，面板通常采用AMOLED，在AMOLED中的触控方案为互容式触控方案，在柔性可折叠触控显示中，通常采用薄盖板设计，材料选择透明PI（聚酰亚胺）材料或者柔性玻璃及其组合，盖板厚度在50um~200um，薄盖板设计造成互容触控中的多点悬浮报点问题，使得用户触控体验效果不佳；在AMOLED oncell触控方案中选择自容式可以有效解决多点悬浮触控的问题，但是自容触控设计中存在问题：如图1所示，自容触控设计中靠近FPC（柔性电路板）端的近端触控图形中的引线数量过多造成触控盲区的影响。
因此，急需寻求一种自容式触控显示面板解决现有技术中存在的近端触控性能不佳的技术问题。
 技术问题
本发明实施例提供一种自容式触控显示面板，通过在触控感应层和触控引线层之间增加触控屏蔽层，实现触控近端和远端的自容触控图案大小相同，保证近端和远端的触控性能一致，提高柔性触控显示面板的触控性能。
 技术解决方案
第一方面，本申请实施例提供一种自容式触控显示面板，其中，自容式触控显示面板包括显示面板与设置于所述显示面板上的触控层；
所述触控层包括：设置于所述显示面板上且具有多条触控引线的触控引线层、设置于所述触控引线层上的第一绝缘层、设置于所述第一绝缘层上的触控屏蔽层、设置于所述触控屏蔽层上的第二绝缘层，以及设置于所述第二绝缘层上且具有阵列排列的感应图案的触控感应层；
其中，所述触控感应层的感应图案通过所述触控屏蔽层与所述触控引线层的触控引线对应连通；
其中，所述触控屏蔽层包括：第一触控屏蔽层以及第二触控屏蔽层，所述第二触控屏蔽层设置于所述第一绝缘层和第二绝缘层之间；
其中，所述显示面板包括发光区和非发光区，所述非发光区包括：弯折区，换线区和邦定区；
所述触控引线层的触控引线在所述弯折区弯折后连接至换线区；
所述换线区设置于所述弯折区远离所述触控引线层一侧；所述触控引线层的触控引线在所述换线区从所述弯折区换线至所述邦定区；
所述邦定区设置于所述换线区远离所述弯折区一侧。
在一些实施例中，所述第一绝缘层上设置有第一过孔，所述第二绝缘层上设置有第二过孔，在所述第一过孔和第二过孔之间设置所述第一触控屏蔽层；所述触控感应层的感应图案通过所述第一触控屏蔽层与所述触控引线层的触控引线对应连通。
在一些实施例中，所述第一过孔和第二过孔同轴，且所述第一过孔的开孔宽度小于所述第二过孔的开孔宽度。
在一些实施例中，所述邦定区包括触控邦定区和显示邦定区，所述触控邦定区包括若干触控邦定端子，所述显示邦定区包括若干显示邦定端子；所述触控引线层的触控引线与所述触控端子连接；所述显示邦定端子与设置在所述显示面板上的显示驱动连接。
在一些实施例中，所述换线区包括第一换线区和第二换线区，所述第一换线区和第二换线区均包括至少两个串联的MUX电路。
在一些实施例中，所述MUX电路为PMOS结构、NMOS结构、CMOS结构中的一种。
在一些实施例中，所述第一绝缘层和第二绝缘层的材料为氮化硅、氧化硅中的一种或其组合物。
在一些实施例中，所述触控引线层、触控屏蔽层、触控感应层的材料为氧化铟锡或氧化铟锡与银的组合物或氧化铟锡与铝的组合物。
第二方面，本申请实施例还提供一种自容式触控显示面板，其中，自容式触控显示面板包括显示面板与设置于所述显示面板上的触控层；
所述触控层包括：设置于所述显示面板上且具有多条触控引线的触控引线层、设置于所述触控引线层上的第一绝缘层、设置于所述第一绝缘层上的触控屏蔽层、设置于所述触控屏蔽层上的第二绝缘层，以及设置于所述第二绝缘层上且具有阵列排列的感应图案的触控感应层；
其中，所述触控感应层的感应图案通过所述触控屏蔽层与所述触控引线层的触控引线对应连通。
在一些实施例中，所述触控屏蔽层包括：第一触控屏蔽层以及第二触控屏蔽层，所述第二触控屏蔽层设置于所述第一绝缘层和第二绝缘层之间。
在一些实施例中，所述第一绝缘层上设置有第一过孔，所述第二绝缘层上设置有第二过孔，在所述第一过孔和第二过孔之间设置所述第一触控屏蔽层；所述触控感应层的感应图案通过所述第一触控屏蔽层与所述触控引线层的触控引线对应连通。
在一些实施例中，所述第一过孔和第二过孔同轴，且所述第一过孔的开孔宽度小于所述第二过孔的开孔宽度。
在一些实施例中，所述显示面板包括发光区和非发光区，所述非发光区包括：弯折区，换线区和邦定区；
所述触控引线层的触控引线在所述弯折区弯折后连接至换线区；
所述换线区设置于所述弯折区远离所述触控引线层一侧；所述触控引线层的触控引线在所述换线区从所述弯折区换线至所述邦定区；
所述邦定区设置于所述换线区远离所述弯折区一侧。
在一些实施例中，所述邦定区包括触控邦定区和显示邦定区，所述触控邦定区包括若干触控邦定端子，所述显示邦定区包括若干显示邦定端子；所述触控引线层的触控引线与所述触控端子连接；所述显示邦定端子与设置在所述显示面板上的显示驱动连接。
在一些实施例中，所述换线区包括第一换线区和第二换线区，所述第一换线区和第二换线区均包括至少两个串联的MUX电路。
在一些实施例中，所述MUX电路为PMOS结构、NMOS结构、CMOS结构中的一种。
在一些实施例中，所述第一绝缘层和第二绝缘层的材料为氮化硅、氧化硅中的一种或其组合物。
在一些实施例中，所述触控引线层、触控屏蔽层、触控感应层的材料为氧化铟锡或氧化铟锡与银的组合物或氧化铟锡与铝的组合物。
在一些实施例中，所述自容式触控显示面板还包括设置于所述显示面板上方且位于所述触控层下方的封装层。
在一些实施例中，所述自容式触控显示面板还包括设置于所述触控层上方的触控保护绝缘层，设置于所述触控保护绝缘层上方的偏光片以及设置于所述偏光片上方的保护盖板。
 有益效果
相较于现有技术，本发明实施例中通过在触控感应层和触控引线层之间增加触控屏蔽层，实现触控近端和远端的自容触控图案大小相同，保证近端和远端的触控性能一致，提高柔性触控显示面板的触控性能。同时，本申请还通过在显示面板上增加换线区，将触控引线层的触控引线经过换线区换线处理，在触控感应层感应图案数量不变的情况下，将引出到触控邦定端子的触控引线数量减少，从而预留出显示邦定区的位置，便于在oncell上实现；从而实现将显示邦定区域与触控邦定区域区分开，避免触控引线与显示引线过度集中，避免其发生信号干涉。
 附图说明
图1是现有技术中柔性触控显示面板的自容触控设计方案图；
图2本发明实施例提供的一种自容式触控显示面板的结构示意图；
图3本发明实施例提供的一种自容式触控显示面板的触控引线示意图；
图4本发明实施例提供的一种自容式触控显示面板的过孔位置处结构示意图；
图5本发明实施例提供的一种自容式触控显示面板的显示面板结构示意图；
图6本发明实施例提供的一种自容式触控显示面板的MUX电路原理示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请中，“示例性”一词用来表示“用作例子、例证或说明”。本申请中被描述为“示例性”的任何实施例不一定被解释为比其它实施例更优选或更具优势。为了使本领域任何技术人员能够实现和使用本发明，给出了以下描述。在以下描述中，为了解释的目的而列出了细节。应当明白的是，本领域普通技术人员可以认识到，在不使用这些特定细节的情况下也可以实现本发明。在其它实例中，不会对公知的结构和过程进行详细阐述，以避免不必要的细节使本发明的描述变得晦涩。因此，本发明并非旨在限于所示的实施例，而是与符合本申请所公开的原理和特征的最广范围相一致。
本发明实施例提供一种自容式触控显示面板。以下分别进行详细说明。
如图2所示，为本发明中自容式触控显示面板的结构示意图，该自容式触控显示面板包括：从下到上依次叠放的显示面板100，封装层200，触控层300，触控保护绝缘层400，偏光片500以及保护盖板600；显示面板100可为AMOLED(Active-matrix organic light-emitting diode)，即：有源矩阵有机发光二极体，其为柔性面板；封装层200用于封装显示面板100，以起到保护显示面板100的作用，避免水蒸气以及氧气等侵蚀显示面板100；触控保护绝缘层400用于保护触控层300；偏光层500用于将自然光转化为偏振光；盖板600为柔性盖板，盖板600用于保护偏光层500以及下方所有结构，盖板600的材料可以为透明PI（聚酰亚胺）材料或者柔性玻璃及其组合。
触控层300包括：设置于封装层200上且具有多条触控引线的触控引线层301、设置于触控引线层301上的第一绝缘层302、设置于第一绝缘层302上的触控屏蔽层303、设置于触控屏蔽层303上的第二绝缘层304以及设置于第二绝缘层304上且具有阵列排列的感应图案的触控感应层305；第一绝缘层302和第二绝缘层304的材料为氮化硅、氧化硅中的一种或其组合物，提高其阻水氧性能，提高使用安全系数；触控引线层301、触控屏蔽层303、触控感应层305的材料为氧化铟锡或氧化铟锡与银的组合物或氧化铟锡与铝的组合物；
其中，触控感应层305的感应图案通过触控屏蔽层303与触控引线层301的触控引线对应连通。
进一步地，如图3所示，显示面板100包括发光区101和非发光区102，触控感应层305形成自容触控感应的若干感应图案，若干感应图案呈阵列分布，每一感应图案通过设置在其右下角的过孔区域A与下方各自对应的触控引线层301的触控引线对应连通，触控感应层305通过触控屏蔽层303与触控引线层301连通，使得感应图案在显示面板100的发光区101可以等大小等距离排布，使触控近端不会存在常规自容触控方案存在的盲区，实现触控近端与远端的触控效果一致。
应当理解的是，为了减少触控引线的长度，过孔区域A一般设置在每一感应图案的下方，可设置在左下角也可设置在右下角，在此不作限制。
具体地，如图4所示，触控屏蔽层303包括：第一触控屏蔽层303b以及第二触控屏蔽层303a，第二触控屏蔽层303a设置于第一绝缘层302和第二绝缘层304之间，第二触控屏蔽层303a进行接地处理，用于屏蔽触控引线对触控感应层305的信号干扰，提高触控性能。
过孔区域A的具体结构为：第一绝缘层302上设置有第一过孔3021，第二绝缘层304上设置有第二过孔3041，在第一过孔3021和第二过孔3041之间设置第一触控屏蔽层303b；触控感应层305的感应图案通过第一触控屏蔽层303b与触控引线层301的触控引线对应连通。
进一步地，由图4中还可看出：第一过孔3021和第二过孔3041同轴，且第一过孔3041的开孔宽度d1小于第二过孔3042的开孔宽度d2。
进一步地，如图5所示，非发光区102包括：弯折区110，换线区120和邦定区130；
触控引线层301的触控引线在弯折区110弯折后连接至换线区120；
换线区120设置于弯折区110远离触控引线层301一侧；触控引线层301的触控引线在换线区120从弯折区110换线至邦定区130；
邦定区130设置于换线区120远离弯折区110一侧。
在本申请的一些实施例中，设置有两个弯折区，分别为第一弯折区111和第二弯折区112，第一弯折区111和第二弯折区112设置在在非发光区102的两侧；其中，触控引线层301的触控引线分成两组分别连接至第一弯折区111和第二弯折区112，在显示面板100中间留出空位，可避免显示面板100上的显示区和触控区信号发生干涉，保证触控性能。
进一步地，本申请设置有两个换线区，分别为第一换线区121和第二换线区122，第一换线区121和第二换线区122分别对应与第一弯折区111和第二弯折区112连接，且第一换线区121和第二换线区122均包括至少两个串联的MUX（multiplexer，数据选择器）电路，两个串联的MUX电路分别为MUX1和MUX2。
进一步地，邦定区130包括触控邦定区131和显示邦定区132，触控邦定区131包括若干触控邦定端子1311，显示邦定区132包括若干显示邦定端子1321；
在本申请的一些实施例中，设置有两个触控邦定区，分别为第一触控邦定区1301和第二触控邦定区1302，第一触控邦定区1301和第二触控邦定区1302分别对应与第一换线区121和第二换线区122连接，且第一触控邦定区1301和第二触控邦定区1302均包括若干触控绑定端子1311；其中，触控引线层301的触控引线与触控端子1311连接；显示邦定端子1321与设置在非发光区102上的显示驱动140连接，显示驱动140另一端与发光区101连接。
进一步地，由图5中还可以看出：第一触控邦定区1301和第二触控邦定区1302分别在非发光区102的两侧，显示邦定区132设置在非发光区102的中间。
需要说明的是：MUX电路可为PMOS（positive channel Metal Oxide Semiconductor，P型金属氧化物半导体）结构、NMOS（Negative channel Metal Oxide Semiconductor，N型金属氧化物半导体）结构、CMOS（Complementary Metal Oxide Semiconductor，互补金属氧化物半导体）结构中的一种。
具体地，以PMOS结构的4：1MUX电路为例，如图6所示：MUX电路中包括两个漏极，4个栅极，8个源极以及8个PMOS结构，两个漏极分别为D1和D2，4个源极栅极分别为G1，G2，G3和G4，8个源极分别为S1，S2，S3，S4，S5，S6，S7和S8，8个PMOS结构分别为T1，T2，T3，T4，T5，T6，T7和T8；其具体原理为：通过栅极G1，G2，G3，G4控制T1，T2，T3和T4的开启或者关闭，在同一时间段T1，T2，T3和T4 4个中只有一个被选中开启，其余三个处于关闭状态，这样能控制漏极D1对S1，S2，S3和S4的依次驱动及感应，控制漏极D2对S5，S6，S7和S8的依次驱动及感应，使得触控引线的通道数能减少至原来的1/4。
应当理解的是，MUX电路可以为2:1 MUX电路、3:1MUX电路、4:1MUX电路或5:1MUX电路中的一种或者组合，当由一个4:1MUX电路与3:1MUX电路串联时，能够使通道数减少至原来的1/12，使得oncell自容触控邦定数量大幅减少，预留出足够的空间使显示邦定区132不受影响，实现在保证触控功能的同时不影响显示面板100的正常发光。
以上对本发明所提供的自容式柔性触控面板进行了详细介绍。应理解，本文所述的示例性实施方式应仅被认为是描述性的，用于帮助理解本发明的核心思想，而并不用于限制本发明。在每个示例性实施方式中对特征或方面的描述通常应被视作适用于其他示例性实施例中的类似特征或方面。尽管参考示例性
实施例描述了本发明，但可建议所属领域的技术人员进行各种变化和更改。本发明意图涵盖所附权利要求书的范围内的这些变化和更改，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (20)

  1. 一种自容式触控显示面板，其中，包括显示面板与设置于所述显示面板上的触控层；
    所述触控层包括：设置于所述显示面板上且具有多条触控引线的触控引线层、设置于所述触控引线层上的第一绝缘层、设置于所述第一绝缘层上的触控屏蔽层、设置于所述触控屏蔽层上的第二绝缘层，以及设置于所述第二绝缘层上且具有阵列排列的感应图案的触控感应层；
    其中，所述触控感应层的感应图案通过所述触控屏蔽层与所述触控引线层的触控引线对应连通；
    其中，所述触控屏蔽层包括：第一触控屏蔽层以及第二触控屏蔽层，所述第二触控屏蔽层设置于所述第一绝缘层和第二绝缘层之间；
    其中，所述显示面板包括发光区和非发光区，所述非发光区包括：弯折区，换线区和邦定区；
    所述触控引线层的触控引线在所述弯折区弯折后连接至换线区；
    所述换线区设置于所述弯折区远离所述触控引线层一侧；所述触控引线层的触控引线在所述换线区从所述弯折区换线至所述邦定区；
    所述邦定区设置于所述换线区远离所述弯折区一侧。
  2. 根据权利要求1所述的自容式触控显示面板，其中，所述第一绝缘层上设置有第一过孔，所述第二绝缘层上设置有第二过孔，在所述第一过孔和第二过孔之间设置所述第一触控屏蔽层；所述触控感应层的感应图案通过所述第一触控屏蔽层与所述触控引线层的触控引线对应连通。
  3. 根据权利要求1所述的自容式触控显示面板，其中，所述第一过孔和第二过孔同轴，且所述第一过孔的开孔宽度小于所述第二过孔的开孔宽度。
  4. 根据权利要求1所述的自容式触控显示面板，其中，所述邦定区包括触控邦定区和显示邦定区，所述触控邦定区包括若干触控邦定端子，所述显示邦定区包括若干显示邦定端子；所述触控引线层的触控引线与所述触控端子连接；所述显示邦定端子与设置在所述显示面板上的显示驱动连接。
  5. 根据权利要求4所述的自容式触控显示面板，其中，所述换线区包括第一换线区和第二换线区，所述第一换线区和第二换线区均包括至少两个串联的MUX电路。
  6. 根据权利要求5所述的自容式触控显示面板，其中，所述MUX电路为PMOS结构、NMOS结构、CMOS结构中的一种。
  7. 根据权利要求1所述的自容式触控显示面板，其中，所述第一绝缘层和第二绝缘层的材料为氮化硅、氧化硅中的一种或其组合物。
  8. 根据权利要求1所述的自容式触控显示面板，其中，所述触控引线层、触控屏蔽层、触控感应层的材料为氧化铟锡或氧化铟锡与银的组合物或氧化铟锡与铝的组合物。
  9. 一种自容式触控显示面板，其中，包括显示面板与设置于所述显示面板上的触控层；
    所述触控层包括：设置于所述显示面板上且具有多条触控引线的触控引线层、设置于所述触控引线层上的第一绝缘层、设置于所述第一绝缘层上的触控屏蔽层、设置于所述触控屏蔽层上的第二绝缘层，以及设置于所述第二绝缘层上且具有阵列排列的感应图案的触控感应层；
    其中，所述触控感应层的感应图案通过所述触控屏蔽层与所述触控引线层的触控引线对应连通。
  10. 根据权利要求9所述的自容式触控显示面板，其中，所述触控屏蔽层包括：第一触控屏蔽层以及第二触控屏蔽层，所述第二触控屏蔽层设置于所述第一绝缘层和第二绝缘层之间。
  11. 根据权利要求10所述的自容式触控显示面板，其中，所述第一绝缘层上设置有第一过孔，所述第二绝缘层上设置有第二过孔，在所述第一过孔和第二过孔之间设置所述第一触控屏蔽层；所述触控感应层的感应图案通过所述第一触控屏蔽层与所述触控引线层的触控引线对应连通。
  12. 根据权利要求11所述的自容式触控显示面板，其中，所述第一过孔和第二过孔同轴，且所述第一过孔的开孔宽度小于所述第二过孔的开孔宽度。
  13. 根据权利要求9所述的自容式触控显示面板，其中，所述显示面板包括发光区和非发光区，所述非发光区包括：弯折区，换线区和邦定区；
    所述触控引线层的触控引线在所述弯折区弯折后连接至换线区；
    所述换线区设置于所述弯折区远离所述触控引线层一侧；所述触控引线层的触控引线在所述换线区从所述弯折区换线至所述邦定区；
    所述邦定区设置于所述换线区远离所述弯折区一侧。
  14. 根据权利要求13所述的自容式触控显示面板，其中，所述邦定区包括触控邦定区和显示邦定区，所述触控邦定区包括若干触控邦定端子，所述显示邦定区包括若干显示邦定端子；所述触控引线层的触控引线与所述触控端子连接；所述显示邦定端子与设置在所述显示面板上的显示驱动连接。
  15. 根据权利要求14所述的自容式触控显示面板，其中，所述换线区包括第一换线区和第二换线区，所述第一换线区和第二换线区均包括至少两个串联的MUX电路。
  16. 根据权利要求15所述的自容式触控显示面板，其中，所述MUX电路为PMOS结构、NMOS结构、CMOS结构中的一种。
  17. 根据权利要求9所述的自容式触控显示面板，其中，所述第一绝缘层和第二绝缘层的材料为氮化硅、氧化硅中的一种或其组合物。
  18. 根据权利要求9所述的自容式触控显示面板，其中，所述触控引线层、触控屏蔽层、触控感应层的材料为氧化铟锡或氧化铟锡与银的组合物或氧化铟锡与铝的组合物。
  19. 根据权利要求9所述的自容式触控显示面板，其中，所述自容式触控显示面板还包括设置于所述显示面板上方且位于所述触控层下方的封装层。
  20. 根据权利要求9所述的自容式触控显示面板，其中，所述自容式触控显示面板还包括设置于所述触控层上方的触控保护绝缘层，设置于所述触控保护绝缘层上方的偏光片以及设置于所述偏光片上方的保护盖板。
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