CN105717683A - LCD (liquid crystal display) integral touch device with an external copper process - Google Patents
LCD (liquid crystal display) integral touch device with an external copper process Download PDFInfo
- Publication number
- CN105717683A CN105717683A CN201610042838.6A CN201610042838A CN105717683A CN 105717683 A CN105717683 A CN 105717683A CN 201610042838 A CN201610042838 A CN 201610042838A CN 105717683 A CN105717683 A CN 105717683A
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- CN
- China
- Prior art keywords
- metal grill
- liquid crystal
- crystal display
- electrode pattern
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- 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
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Abstract
The invention relates to an LCD (liquid crystal display) integral touch device with an external copper process, which comprises an upper glass substrate and a sensing pattern layer; the surface of the upper glad substrate is copper-plated with a first metal grid conducting layer, the first metal grid conducting layer is coated with an OC insulating layer, and the OC insulating layer is copper-plated with a second metal grid conducting layer; the first metal grid conducting layer directly forms a first metal grid circuit, and forms an electroplating drive electrode pattern through a drive electrode unit; the second metal grid conducting layer directly forms a second metal grid circuit, and forms an electroplating sensing electrode pattern through an induction electrode unit; the electroplating drive electrode pattern and the electroplating sensing electrode pattern form the distribution of a sensing pattern layer. On the premise of not reducing an interval, the device can achieve effects of reducing channel impedance, lowering power consumption, and providing transmittance, and impedance changes in bending or stretching are reduced during flexible integration of the touch device.
Description
Technical field
The present invention relates to integration touching device, specifically a kind of external copper wiring integration touching device of LCD liquid crystal display.
Background technology
Along with mobile phone develops to ultra-thin, large-size screen monitors, and flat board and this demand to touch screen of super, there is rapid development in touch screen technology, new technique tends to ripe, novel TOL, mutual capacitance type monolayer multiple point touching, the technology such as Oncell/Incell and Flexible Displays will become following trend, and Ge great producer also all puts into the energy reliable Oncell touch screen of research and development.It addition, along with TSP technology is applied to flexible display apparatus, the touch panel on the front surface of OLED or the display device of liquid crystal display also more becomes display and touches the direction of research.
Existing integration touching device needs the metal conducting layer of ITO plated film, sensing patterns layer is formed mutual capacitance by ITO conductive layer, owing to the ITO impedance rate of exchange are high, the driving force of IC is required also higher, adopting 2-3 to drive IC to meet touch signal is processed, in solution, large scale touches outstanding problem in driving, for instance, when integrated flexible touching device, it is bigger that the impedance of ITO can become；Increasing pattern-pitch, reducing channel impedance and transmitance can be caused to decline, power consumption is as well as lifting.
Summary of the invention
Present invention seek to address that the problems referred to above that prior art exists, and provide a kind of when not reducing spacing, it is possible to reduce channel impedance, reduce power consumption, it is provided that transmitance；When integrated flexible touching device, the external copper wiring integration touching device of LCD liquid crystal display of the change of impedance when reducing in bending or stretch.
This invention address that its technical problem the technical scheme is that
A kind of external copper wiring integration touching device of LCD liquid crystal display, including LCD liquid crystal layer, sensing patterns layer, described LCD liquid crystal layer top glass substrate surface copper is coated with the first metal grill conductive layer, being coated with OC insulating barrier on the first described metal grill conductive layer, on described OC insulating barrier, copper is coated with the second metal grill conductive layer；
The first described metal grill conductive layer directly forms the first metal grill circuit, and forms plating drive electrode pattern by drive electrode unit；
The second described metal grill conductive layer directly forms the second metal grill circuit, and forms plating sensing electrode pattern by induction electrode unit；
Described plating drive electrode pattern and described plating sensing electrode pattern constitute the distribution of described sensing patterns layer.
Adopting the present invention of technique scheme, compared with prior art, it provides the benefit that:
Metal conducting layer without ITO plated film, it is possible to plated metal clathrum in top glass substrate and OC, decreases manufacturing process, improves yield and the production capacity of production；
Touch area relies primarily on wire netting compartment conduction, and sheet resistance is smaller, adopts the driving IC of the built-in MCU of single can realize the scanning of passage, and touch signal processes；
After touch area adopts copper mesh processing procedure, when not reducing spacing, panel region channel impedance can reduce 1/3, reduces power consumption, improves transmitance；
Sensing patterns layer is electrically conductive forming mutual capacitance by netted metal grill, and impedance is lower, and sheet resistance is at 5 Ω-15 Ω/sq；Electric conductivity is excellent；
Sensing region adopts copper mesh, can reduce touch area impedance when using flexible bending integration touching device, touches response speed better sensitiveer, it is possible to solve to touch driving problems in middle large scale.
As preferably, the present invention further technical scheme is:
Described top glass substrate includes flexible and transparent substrate, and flexible and transparent substrate is the one in polymethyl methacrylate, polyurethanes and Merlon.
The line style of described metal grill circuit includes straight line, curve and various irregular line style.
The live width of described metal grill circuit is less than 8u, more than 3u.
Described OC insulating barrier is made up of PI base material and high insulant.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is lattice and the electrode unit Map of Distributions of Types of the first metal grill conductive layer；
Fig. 3 is lattice and the electrode unit Map of Distributions of Types of the second metal grill conductive layer；
Fig. 4 is for adopting copper (CU) and adopting the power consumption ratio chart such as aluminum (AL), gold (AU)；
Fig. 5 is for adopting copper (CU) and adopting the ratio chart of aluminum (AL), gold (AU) impedance ratio and transmitance；
In figure: 1-liquid crystal upper substrate；2-the first metal grill conductive layer；3-OC insulating barrier；4-the second metal grill conductive layer；21-the first metal grill circuit；211-electroplates drive electrode pattern；41-the second metal grill circuit；411-plating sensing electrode pattern；100-substrate；200-jet-plating metallization clathrum.
Detailed description of the invention
The present invention is further elaborated for the embodiment provided below in conjunction with accompanying drawing, but the present invention is not constituted any restriction by embodiment.
Referring to Fig. 1, a kind of external copper wiring integration touching device of LCD liquid crystal display, it is made up of top glass substrate the 1, first metal grill conductive layer 2, OC insulating barrier the 3, second metal grill conductive layer 4 four-layer structure, the one in flexible and transparent choice of the substrates polymethyl methacrylate, polyurethanes and Merlon that top glass substrate 1 selects；OC insulating barrier 3 is made up of PI base material and high insulant, is coated directly onto on the first metal grill conductive layer 2.
Referring to Fig. 1, Fig. 2, the first metal grill conductive layer 2 is the layer of metal copper by low temperature sputter, and directly forms the first metal grill circuit 21 by techniques such as exposures, and then forms plating drive electrode pattern 211 by drive electrode unit.
Referring to Fig. 1, Fig. 3, second metal grill conductive layer 4 is low temperature sputter layer of metal copper on OC insulating barrier 3, the same with the first metal grill conductive layer 2, directly form the second metal grill circuit 41 by techniques such as exposures, then pass through induction electrode unit and form plating sensing electrode pattern 411.
Plating drive electrode pattern 211 and plating sensing electrode pattern 411 collectively form sensing patterns layer.
The line style of above-mentioned first metal grill circuit 21 and the second metal grill circuit 41 includes straight line, curve and various irregular line style, and the live width of grid circuit is less than 8u, more than 3u.
First sensing electrode unit 222 and the second sensing electrode unit 333 are by intersecting formation sense capacitance, and when finger touches, sensing amount changes, it is determined that touch location, thus realizing touch function.The mesh shape of the sensing unit of sensing region 222 and 31 can be line style, to deformation and irregular shape.
Between metal grill passage on first metal grill circuit the 21, second metal grill circuit 41, under having external force sensing, drive the MCU unit of IC can sense the change of the capacitance of certain point between electrode unit, it is determined that report point position；Report dot frequency with report point processing speed along with the channel unit impedance that metal grill passage is corresponding changes, when metal grill channel pitch strengthens, and when mesh spacing is constant, namely when 3u-5u, the impedance of sheet resistance is as well as increase, and report spot speed is also with change.
First metal grill conductive layer 2 and the second metal grill conductive layer 4 may be used without other materials sputter, directly form grid circuit by exposing etching, form sensing electrode zone.
The foregoing is only the embodiment that the present invention is preferably feasible, not thereby limit to the interest field of the present invention, the equivalent structure change that all utilizations description of the present invention and accompanying drawing content are made, it is both contained within the interest field of the present invention.
Claims (5)
1. the external copper wiring integration touching device of LCD liquid crystal display, including LCD liquid crystal layer, sensing patterns layer, it is characterised in that:
Described LCD liquid crystal layer top glass substrate surface copper is coated with the first metal grill conductive layer, and the first described metal grill conductive layer is coated with OC insulating barrier, and on described OC insulating barrier, copper is coated with the second metal grill conductive layer；
The first described metal grill conductive layer directly forms the first metal grill circuit, and forms plating drive electrode pattern by drive electrode unit；
The second described metal grill conductive layer directly forms the second metal grill circuit, and forms plating sensing electrode pattern by induction electrode unit；
Described plating drive electrode pattern and described plating sensing electrode pattern constitute the distribution of described sensing patterns layer.
2. the external copper wiring integration touching device of LCD liquid crystal display according to claim 1, it is characterized in that: described top glass substrate includes flexible and transparent substrate, flexible and transparent substrate is the one in polymethyl methacrylate, polyurethanes and Merlon.
3. the external copper wiring integration touching device of LCD liquid crystal display according to claim 1, it is characterised in that: the line style of described metal grill circuit includes straight line, curve and various irregular line style.
4. the external copper wiring integration touching device of LCD liquid crystal display according to claim 1 or 3, it is characterised in that: the live width of described metal grill circuit is less than 8u, more than 3u.
5. the external copper wiring integration touching device of LCD liquid crystal display according to claim 1, it is characterised in that: described OC insulating barrier is made up of PI base material and high insulant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042838.6A CN105717683A (en) | 2016-01-22 | 2016-01-22 | LCD (liquid crystal display) integral touch device with an external copper process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042838.6A CN105717683A (en) | 2016-01-22 | 2016-01-22 | LCD (liquid crystal display) integral touch device with an external copper process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105717683A true CN105717683A (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610042838.6A Pending CN105717683A (en) | 2016-01-22 | 2016-01-22 | LCD (liquid crystal display) integral touch device with an external copper process |
Country Status (1)
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| CN (1) | CN105717683A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601756A (en) * | 2017-02-21 | 2017-04-26 | 京东方科技集团股份有限公司 | Flexible substrate, flexible display substrate and display device |
| CN107450787A (en) * | 2017-09-04 | 2017-12-08 | 深圳市千分智能技术有限公司 | A kind of active electric capacity touch-control module and intelligent hand drawing board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458597A (en) * | 2007-12-14 | 2009-06-17 | 清华大学 | Touch screen, method for producing the touch screen, and display device using the touch screen |
| CN103293736A (en) * | 2012-09-05 | 2013-09-11 | 上海天马微电子有限公司 | Embedded liquid crystal touch control panel |
| US20150160758A1 (en) * | 2013-12-10 | 2015-06-11 | Henghao Technology Co. Ltd | Touch panel with mesh alloy electrodes |
| CN104823142A (en) * | 2012-11-30 | 2015-08-05 | 3M创新有限公司 | Complementary touch panel electrodes |
-
2016
- 2016-01-22 CN CN201610042838.6A patent/CN105717683A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458597A (en) * | 2007-12-14 | 2009-06-17 | 清华大学 | Touch screen, method for producing the touch screen, and display device using the touch screen |
| CN103293736A (en) * | 2012-09-05 | 2013-09-11 | 上海天马微电子有限公司 | Embedded liquid crystal touch control panel |
| CN104823142A (en) * | 2012-11-30 | 2015-08-05 | 3M创新有限公司 | Complementary touch panel electrodes |
| US20150160758A1 (en) * | 2013-12-10 | 2015-06-11 | Henghao Technology Co. Ltd | Touch panel with mesh alloy electrodes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601756A (en) * | 2017-02-21 | 2017-04-26 | 京东方科技集团股份有限公司 | Flexible substrate, flexible display substrate and display device |
| CN106601756B (en) * | 2017-02-21 | 2019-10-15 | 京东方科技集团股份有限公司 | A kind of flexible substrates, flexible display substrates and display device |
| CN107450787A (en) * | 2017-09-04 | 2017-12-08 | 深圳市千分智能技术有限公司 | A kind of active electric capacity touch-control module and intelligent hand drawing board |
| CN107450787B (en) * | 2017-09-04 | 2023-08-04 | 深圳市千分一智能技术有限公司 | Active capacitive touch module and intelligent hand-painted plate |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170109 Address after: Kwai Chung Street Yadi village in Longgang District of Shenzhen City, Guangdong province 518119 Applicant after: Zhao Zongxuan Address before: 063000 Hebei Province, Tangshan City Caofeidian Industrial Zone of renewable resources industrial park Applicant before: TANGSHAN BOKAISHENG PHOTOELECTRIC TECHNOLOGY CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |