CN105493015A - Combination of capacitive touch screen and flexible printed circuit board - Google Patents
Combination of capacitive touch screen and flexible printed circuit board Download PDFInfo
- Publication number
- CN105493015A CN105493015A CN201580000931.4A CN201580000931A CN105493015A CN 105493015 A CN105493015 A CN 105493015A CN 201580000931 A CN201580000931 A CN 201580000931A CN 105493015 A CN105493015 A CN 105493015A
- Authority
- CN
- China
- Prior art keywords
- pin
- touch screen
- capacitance touch
- conductive layer
- base material
- 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.)
- Granted
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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
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Position Input By Displaying (AREA)
Abstract
A capacitive touch screen (10) is connected to a flexible printed circuit board (FPC), wherein the FPC (30) comprises multiple first pins (32) which are arranged side by side with intervals. The capacitive touch screen (10) comprises base material (12) and a lead region (24) arranged on the base material (12); the lead region (24) comprises multiple second pins (26) which are arranged side by side with intervals; the width of each second pin (26) is larger than that of each first pin(32); the space between two adjacent second pins (26) is less than that between two adjacent first pins (32). Due to the space between adjacent first pins (32) is larger, even if small metal balls contained in the ACF of the first pins (32) are connected with each other, short circuit of adjacent first pins (32) is not liable to form. Besides, due to the width of each second pin (26) is larger than that of each first pin (32), even if a small offset occurs between the touch screen (10) and the FPC (30), short circuit is not liable occurs to the pins. The invention also provides a combination of the capacitive screen (10) and the FPC (30).
Description
Technical field
The present invention relates to touch-screen, particularly relate to capacitance touch screen and the combination with flexible PCB thereof.
Background technology
Because current touch-screen has the demands such as simplifying structure and reduces costs, single-layer type touch-screen more and more becomes a kind of trend.Single-layer type touch-screen refers to and to be formed for the conductive pattern driven and respond on base material simultaneously, and does not need by build bridge or the mode of hop realizes driving and induction mutual in pattern area.Due to single-layer type touch-screen performance and conventional monolayers is built bridge or double-decker is close, therefore developed rapidly, can be stablized scale of mass production at present.
Single-layer type touch-screen is more for the pin connecting flexible PCB (FPC), and for the screen of single-ended outlet about 5 cun, its pin has more than 200.So, a kind of design can be pitch (pitch) value is 0.27mm, pin (pin) wide 0.12mm, spacing (gap) the wide 0.15mm between pin.FPC designs identical therewith simultaneously, so the complete contraposition when nation fixed (bonding), even if some off normal, because spacing is wider, and not easily short circuit, but this design can affect contact resistance.
Spacing between needing the pin of touch-screen and FPC is all done less, hot pressing FPC pin and touch-screen are to make the anisotropic conductive band film (AnisotropicConductiveFilm that pin attaches, when ACF) playing electric connection pin and touch-screen, the small metal ball that a few um of the diameter comprised in ACF to tens um does not wait very easily couples together and forms adjacent leads short circuit.Simultaneously because pin is more, touch-screen and FPC a little off normal also easily form short circuit.In addition, flexible parent metal size distortion is relatively more serious, and pin size is different mates completely to cause FPC pin and screen to be gone up, and increases the risk of short circuit.
Summary of the invention
Embodiments of the present invention provide a kind of capacitance touch screen of solving the problems of the technologies described above and the combination with flexible PCB thereof.
A kind of capacitance touch screen, can be connected with a flexible PCB (FPC), and this FPC comprises the first pin that multiple spacing side by side is arranged.This capacitance touch screen comprises a base material and is arranged at the lead district of this base material, this lead district comprises the second pin that multiple spacing side by side is arranged, the width of each second pin is greater than the width of each first pin, and the spacing of adjacent second pin is less than the spacing of adjacent first pin.
The combination of a kind of capacitance touch screen and flexible PCB (FPC), this FPC comprises the first pin that multiple spacing side by side is arranged, this capacitance touch screen comprises a base material and is arranged at the lead district of this base material, and this lead district comprises the second pin that multiple spacing side by side is arranged.The width of each second pin is greater than the width of each first pin, and the spacing of adjacent second pin is less than the spacing of adjacent first pin, and each second pin is electrically connected with corresponding first pin.
Under technical scheme of the present invention, the width of each second pin is greater than the width of each first pin, the spacing of adjacent second pin is less than the spacing of adjacent first pin, and therefore, the small metal ball comprised in the ACF on the first pin couples together the short circuit also not easily forming adjacent first pin.In addition, the width due to the second pin is greater than the width of each first pin, even if offset a little between touch-screen and FPC, is also not easily short-circuited because of the short circuit of the first pin between the second pin.So, the nation between touch-screen and FPC determines yield and is improved, and therefore production cost also reduces.
Accompanying drawing explanation
Following accompanying drawing is used for describing each embodiment of the present invention in detail in conjunction with embodiment.Should be appreciated that each element illustrated in accompanying drawing does not represent actual size and proportionate relationship, being only the schematic diagram illustrating out to clearly demonstrate, not shoulding be understood to limitation of the present invention.
Fig. 1 is the plan view that the capacitance touch screen that provides of better embodiment of the present invention and FPC are in released state.
Fig. 2 is the side schematic view illustrating the capacitance touch screen utilizing radium-shine mode construction drawing 1.
Fig. 3 is the part enlarged plan view of the capacitance touch screen of Fig. 1.
Fig. 4 is the schematic diagram that the capacitance touch screen of Fig. 1 and FPC pin are separately in when not contacting with each other state.
Fig. 5 is the schematic diagram of the pin of Fig. 4 when contacting separately.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with multiple embodiment and accompanying drawing, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Incorporated by reference to Fig. 1, it illustrates capacitance touch screen 10 and the mutual nation of FPC30 fixed before be in the plan view of released state, FPC30 has the first pin 32, and capacitance touch screen 10 has the second pin 26 for being connected with the first pin 32, the detailed construction of first and second pin 32,26 vide infra.Please composition graphs 2 and Fig. 3 again, which respectively show lateral plan and the part enlarged plan view of capacitance touch screen 10.The conductive layer 14 that capacitance touch screen 10 comprises base material 12 and arranges on the base substrate 12.
Base material 12 can be made up of transparent material, such as glass or polyethylene terephthalate (PolyethyleneTerephthalate, PET), is beneficial to make the display screen module with touch function or other needs the application scenarios of transparent characteristic.When needing capacitance touch screen 10 to have flexibility, optional PET making base material 12, PET has light transmission and pliability is good, is easy to the advantages such as manufacture.In the present embodiment, the thickness of the base material 12 be made up of PET is about 0.015 to 0.2 millimeter (mm), and be preferably 0.1mm, the base material in this thickness has good pliability.Certainly, when other is without the need to transparent characteristic, base material 12 also can by nontransparent material, and such as metal is made.
Conductive layer 14 can be the film including the metal of nanometer dimension of electrically conducting transparent, as comprised the film that the single metal of nanometer dimension, alloy, metallic compound or its above combination in any are formed, the film such as comprising nano metal silk, the film comprising nano-metal particle, comprise the film of nano metal grid, can certainly be graphene film, carbon nano-tube film, organic conductive macromolecule thin polymer film, tin indium oxide (IndiumTinOxide, ITO) film or above combination in any.In the present embodiment, conductive layer 14 is the development film of electrically conducting transparent, and it comprises the film that one deck has the polymeric matrix of development, development disordered uniform distribution in the film, has feature that is transparent and conduction to make film.Development film is set up to base material 12 by the mode of coating, silk-screen or injection.
Preferably, capacitance touch screen 10 also comprises and is positioned at the protective seam 16 of base material 12 back to conductive layer 14 side, and protective seam 16 can by scratch resistance material, and such as polycarbonate material etc. are fixed to base material 12 by coating method.
Conductive layer 14 is formed the lead district 24 being positioned at middle sensing area 22 and being positioned at edge thereon by laser 11 by radium-shine mode.Particularly, the parameter of adjustment laser 11, can make laser 11 characteristic of the electrically conducting transparent of development film be become transparent and non-conductive in the mode do not removed.Described laser parameter includes pulse width, pulse flux, pulse energy, spot size, pulse recurrence rate etc., after rotating suitable parameter, development in illuminated part will become non-conductive from conduction, meanwhile, the transparency of illuminated part changes hardly, and the illuminated part of development film has any situation about being stripped hardly and occurs.Certainly, in other embodiments, lead district 24 also can be formed by gold-tinted technique or silk-screen by conductive layer 14.
Sensing area 22 has the pattern 26 for sensing touch, and the line of drawing from pattern 26 and alignment (figure do not mark), and wherein, line and alignment are all arranged on the side of sensing area 22.There is in lead district 24 multiple above-mentioned second pin 26 formed by laser 11 illuminated line, each second pin 26 is connected to corresponding line and alignment, so that line and alignment are connected to external circuit by the connection of the second pin 26 of lead district 24 and first pin 32 of FPC.
Incorporated by reference to Fig. 4 and Fig. 5, it is the schematic diagram that capacitance touch screen and FPC pin 26 and 32 are separately in when not contacting with each other and contact with each other state.The width B 2 of the second pin 26 of capacitance touch screen is greater than the width B 1 of FPC first pin 32, and the spacing A2 of adjacent second pin 26 is less than the spacing A1 of adjacent first pin 32.So, when each first pin 32 is electrically connected with the second corresponding pin 26, because the spacing of adjacent first pin 32 is comparatively large, the small metal ball comprised in the ACF on the first pin 32 couples together the short circuit also not easily forming adjacent first pin 32.In addition, the width due to the second pin 26 is greater than the width of each first pin 32, even if offset a little between touch-screen and FPC, is also not easily short-circuited because of the short circuit of the first pin 32 between the second pin 26.So, the nation between touch-screen 10 and FPC30 determines yield and is improved, and therefore production cost also reduces.
Preferably, each first pin 32 is positioned in the middle of corresponding second pin 26, to reduce the risk of short circuit.
The foregoing is only better embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a capacitance touch screen, can be connected with a flexible PCB (FPC), this FPC comprises the first pin that multiple spacing side by side is arranged, it is characterized in that, this capacitance touch screen comprises a base material and is arranged at the lead district of this base material, this lead district comprises the second pin that multiple spacing side by side is arranged, and the width of each second pin is greater than the width of each first pin, and the spacing of adjacent second pin is less than the spacing of adjacent first pin.
2. capacitance touch screen as claimed in claim 1, it is characterized in that, this capacitance touch screen also comprises the conductive layer being arranged at this base material, and the plurality of first pin is formed by radium-shine by this conductive layer.
3. capacitance touch screen as claimed in claim 1, it is characterized in that, this capacitance touch screen also comprises the conductive layer being arranged at this base material, and the plurality of first pin is formed by gold-tinted technique or silk-screen by this conductive layer.
4. capacitance touch screen as claimed in claim 2 or claim 3, it is characterized in that, this conductive layer comprises one of film, carbon nano-tube film, graphene film, organic conductive macromolecule film, ito thin film or its combination in any of the metal with nanometer dimension.
5. capacitance touch screen as claimed in claim 2 or claim 3, it is characterized in that, this conductive layer comprises development film.
6. the combination of a capacitance touch screen and flexible PCB (FPC), this FPC comprises the first pin that multiple spacing side by side is arranged, this capacitance touch screen comprises a base material and is arranged at the lead district of this base material, this lead district comprises the second pin that multiple spacing side by side is arranged, it is characterized in that, the width of each second pin is greater than the width of each first pin, and the spacing of adjacent second pin is less than the spacing of adjacent first pin, and each second pin is electrically connected with corresponding first pin.
7. combine as claimed in claim 6, it is characterized in that, each first pin is positioned in the middle of corresponding second pin.
8. combine as claimed in claim 6, it is characterized in that, this capacitance touch screen also comprises the conductive layer being arranged at this base material, and the plurality of first pin is formed by radium-shine by this conductive layer.
9. capacitance touch screen as claimed in claim 6, it is characterized in that, this capacitance touch screen also comprises the conductive layer being arranged at this base material, and the plurality of first pin is formed by gold-tinted technique or silk-screen by this conductive layer.
10. combine as claimed in claim 8 or 9, it is characterized in that, this conductive layer comprises one of the metallic film, carbon nano-tube film, graphene film, organic conductive macromolecule film, ITO or its combination in any with nanometer dimension.
11. combine as claimed in claim 8 or 9, it is characterized in that, this conductive layer comprises development film.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/072454 WO2016123811A1 (en) | 2015-02-06 | 2015-02-06 | Capacitive touch screen and combination of same with flexible circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105493015A true CN105493015A (en) | 2016-04-13 |
| CN105493015B CN105493015B (en) | 2019-04-30 |
Family
ID=55678490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580000931.4A Expired - Fee Related CN105493015B (en) | 2015-02-06 | 2015-02-06 | Capacitance touch screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105493015B (en) |
| WO (1) | WO2016123811A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106775170A (en) * | 2017-01-18 | 2017-05-31 | 昆山国显光电有限公司 | A kind of flexible PCB and self-capacitance touch display screen |
| CN107402682A (en) * | 2017-07-31 | 2017-11-28 | 张家港康得新光电材料有限公司 | A kind of touch-screen and its preparation method |
| CN108700967A (en) * | 2016-04-26 | 2018-10-23 | 株式会社藤仓 | With wire body, match wire body component, wiring substrate and touch sensor |
| WO2019113824A1 (en) * | 2017-12-13 | 2019-06-20 | 深圳市柔宇科技有限公司 | Flexible touch display device and touch compensation method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10774454B2 (en) | 2017-12-01 | 2020-09-15 | Haier Us Appliance Solutions, Inc. | User interface with capacitive touch sensor |
| CN109739037B (en) * | 2018-11-23 | 2023-12-15 | 深圳市新盈恒科技有限公司 | Liquid crystal display of convenient maintenance |
| CN112072428B (en) * | 2020-07-13 | 2022-02-18 | 无锡市科虹标牌有限公司 | Pressing process of metal contact pin for touch film connector |
| CN113625154A (en) * | 2021-08-11 | 2021-11-09 | 翔实光电科技(昆山)有限公司 | False pressure testing device for touch screen and using method thereof |
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| CN203894715U (en) * | 2014-04-01 | 2014-10-22 | 深圳市柔宇科技有限公司 | Flexible touch screen and touch device |
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| JP4560026B2 (en) * | 2006-10-04 | 2010-10-13 | セイコーエプソン株式会社 | Flexible substrate, electro-optical device including the same, and electronic apparatus |
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| JP5125632B2 (en) * | 2008-03-10 | 2013-01-23 | セイコーエプソン株式会社 | Mounting structure and electro-optical device |
| CN202585815U (en) * | 2011-11-05 | 2012-12-05 | 宝宸（厦门）光学科技有限公司 | Pin structure and pin connection structure |
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2015
- 2015-02-06 WO PCT/CN2015/072454 patent/WO2016123811A1/en active Application Filing
- 2015-02-06 CN CN201580000931.4A patent/CN105493015B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2704863Y (en) * | 2002-08-21 | 2005-06-15 | 精工爱普生株式会社 | Installing structure of semiconductor device, electro-optical device and electronic apparatus |
| CN1553430A (en) * | 2003-06-04 | 2004-12-08 | 友达光电股份有限公司 | Driving IC sealing assembly of liquid-crystal displaying device |
| CN201097037Y (en) * | 2007-11-06 | 2008-08-06 | 上海广电光电子有限公司 | Lcd |
| US20110139501A1 (en) * | 2009-12-16 | 2011-06-16 | Lin Ching-San | Electronic chip and substrate with shaped conductor |
| CN103094737A (en) * | 2011-11-05 | 2013-05-08 | 宝宸（厦门）光学科技有限公司 | Pin structure and pin connecting structure |
| CN203894715U (en) * | 2014-04-01 | 2014-10-22 | 深圳市柔宇科技有限公司 | Flexible touch screen and touch device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700967A (en) * | 2016-04-26 | 2018-10-23 | 株式会社藤仓 | With wire body, match wire body component, wiring substrate and touch sensor |
| CN106775170A (en) * | 2017-01-18 | 2017-05-31 | 昆山国显光电有限公司 | A kind of flexible PCB and self-capacitance touch display screen |
| CN106775170B (en) * | 2017-01-18 | 2020-06-09 | 昆山国显光电有限公司 | Flexible circuit board and self-capacitance touch display screen |
| CN107402682A (en) * | 2017-07-31 | 2017-11-28 | 张家港康得新光电材料有限公司 | A kind of touch-screen and its preparation method |
| CN107402682B (en) * | 2017-07-31 | 2021-08-10 | 张家港康得新光电材料有限公司 | Touch screen and manufacturing method thereof |
| WO2019113824A1 (en) * | 2017-12-13 | 2019-06-20 | 深圳市柔宇科技有限公司 | Flexible touch display device and touch compensation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105493015B (en) | 2019-04-30 |
| WO2016123811A1 (en) | 2016-08-11 |
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Address after: Shenzhen City, Guangdong province 518052 Keyuan Road, Nanshan District science and Technology Park No. 15 Science Park Sinovac A4-1501 Patentee after: Shenzhen Ruoyu Technology Co.,Ltd. Address before: Shenzhen City, Guangdong province 518052 Keyuan Road, Nanshan District science and Technology Park No. 15 Science Park Sinovac A4-1501 Patentee before: SHENZHEN ROYOLE TECHNOLOGIES Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20220206 |