CN101950225A - Capacitance touch screen and production method thereof - Google Patents
Capacitance touch screen and production method thereof Download PDFInfo
- Publication number
- CN101950225A CN101950225A CN 201010261847 CN201010261847A CN101950225A CN 101950225 A CN101950225 A CN 101950225A CN 201010261847 CN201010261847 CN 201010261847 CN 201010261847 A CN201010261847 A CN 201010261847A CN 101950225 A CN101950225 A CN 101950225A
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- CN
- China
- Prior art keywords
- substrate
- touch screen
- circuit board
- flexible circuit
- groove
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- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 55
- 239000003292 glue Substances 0.000 claims abstract description 9
- 239000007767 bonding agent Substances 0.000 claims description 8
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
Images
Abstract
The invention provides a capacitance touch screen and a production method thereof. The capacitance touch screen comprises an upper and a lower substrates adhered together, and a flexible circuit board electrically connected with one substrate and pressured between the two substrates, wherein a bulge formed at the electric connecting part of the flexible circuit board and the substrates is just contained into a groove arranged on the other substrate and corresponding to the bulge in position and shape. The production method comprises the steps of: firstly arranging the groove corresponding to the bulge in the position and the shape on the substrate of the touch screen not provided with an electrode wire; secondly, adhering the two substrates together to ensure that the groove and the bulge are just contained together; and thirdly, curing and packaging to prepare the touch screen. Because the bulge is formed at the electric connecting part of the flexible circuit board and the substrates and just contained in the groove arranged on the other substrate, the problem of unsmooth touch screen caused by the thickness of the flexible circuit board can be improved, the gap between the two substrate is reduced, the consumption of glue water for adhering the substrates is reduced, and the cost of the capacitance touch screen is lowered.
Description
Technical field
The present invention relates to the production method of a kind of capacitive touch screen and this capacitive touch screen.
Background technology
Touch-screen can be used as a kind of interface instrument of electronic installation being operated by display screen, allow the user directly to touch or hand-written mode input information by point on the display device surface that is added with touch-screen, more friendly than input equipments such as mouse, keyboards, convenient, therefore be used in more and more widely on the various portable sets, as mobile phone, PDA etc.For example, the user can one just at display image, and with display device that touch-screen combines on input want the information imported.
According to the type (as finger, pen etc.) of use contactant and the difference of affirmation contact (position that contactant is operated touch-screen) mode, touch-screen can be divided into resistance-type, condenser type, infrared-type again, surface acoustic wave type etc.Along with the maturation of capacitive touch screen control IC technology, the decline of cost, and some distinctive advantages are arranged with respect to other several technology, good as durability, not fragile, can use for a long time, make capacitive touch screen application more and more widely.
The common structure of capacitive touch screen as shown in Figure 1, generally comprises the flexible circuit board (FPC) 17 of a transparent upper substrate 11 and a transparent infrabasal plate 16 and a conduction usefulness.Upper substrate 11, infrabasal plate 16 bond together by bonding agent 12, has two-layer transparency electrode 13 and 15 (also can have only one deck electrode) on the infrabasal plate, be provided with transparent insulating layer 14 between electrode layer 13 and electrode layer 15 electrode layer is kept apart, electrode is the form of sensor block.
Adopt gluing substrate and the infrabasal plate of connecting of solid state optics, because the consistency of thickness of solid state optics glue is better, so can control two spacings between the substrate well, thereby can realize the thickness of whole touch screen unanimity well, but the shortcoming of this method is: can have a large amount of bubbles between the upper and lower base plate that fits together, utilize some defoaming methods bubble all can not be taken off, the yields that causes producing is subjected to great influence, solid state optics glue also increased production cost of products, so can be replaced by liquid optical cement gradually in actual applications.
Liquid optical cement produces the problem of bubble in the time of can solving upper substrate and infrabasal plate applying well, it as number of patent application 2009101049175 the disclosed technology of Chinese invention patent Shen Qing Publication instructions, but the problem that the method exists is: ITO (tin indium oxide) glass, be that infrabasal plate itself will or be crimped on flexible circuit board (being called for short FPC) 17 connections, in this connection or crimping part, nature can form a projection, as shown in Figure 2, because the thickness of FPC is generally 0.05mm～0.15mm, cause whole touch screen can form high low shape on one side on one side, like this, on the capacitive touch screen, the gap of infrabasal plate, and the touch-screen consistency of thickness just can not guarantee that promptly the flatness of touch-screen does not reach requirement.
Summary of the invention
The purpose of this invention is to provide a kind of capacitive touch screen and production method, be intended to solve existing touch panel after applying, variable thickness causes, irregular problem.
The present invention is achieved in that a kind of production method of capacitive touch screen, comprises the following steps:
1.1 flexible circuit board is electrically connected with the substrate that described touch-screen has electrode wires; And on another substrate of described touch-screen, open a groove, it is corresponding to make described groove shapes, position and described flexible circuit board be electrically connected convex shape, position that part forms with substrate;
1.2 upper and lower two substrates of described touch-screen are bonded together by bonding agent, and described groove, projection are contained togather just, treat that described bonding agent diffusion levelling is to the binding face that is full of upper and lower substrate;
1.3 after described glue curing, encapsulate and make the capacitive touch screen after the applying.
A kind of capacitive touch screen provided by the invention, comprise the upper and lower substrate that fits together, the flexible circuit board that is connected with electrode wires on the described substrate, described flexible circuit board is crimped between the described upper and lower substrate, be electrically connected the projection that part forms with substrate in described flexible circuit board and be placed in just, be provided with on another substrate with described raised position, the corresponding groove of shape in.
Convex shape is as described: long for L, wide thickness for D, flexible circuit board are the cuboid projection of H, then described groove just is the long L that is
1, wide be D
1, the degree of depth is H
1The cuboid groove, and L
1〉=L, wide be D
1〉=D, depth H
1〉=H.
Capacitive touch screen provided by the present invention and production method, because flexible circuit board is electrically connected the projection that part forms with substrate, just be placed in the groove that is provided with on another substrate, like this, just can effectively improve existence because of the thickness of flexible circuit board own, cause the rugged problem of whole touch screen, improve the surface smoothness of touch-screen; Meanwhile, can also significantly reduce after two baseplate-laminatings up and down, the glue consumption of adhesive substrates is also reduced in the gap between the apparent surface thus significantly, reduces the cost of product.
Description of drawings
Fig. 1 is the sectional structure chart of existing capacitive touch screen;
Fig. 2 is that the defective that existing capacitive touch screen exists after applying forms synoptic diagram;
Fig. 3 is the side view of touch-screen upper substrate of the present invention;
Fig. 4 is the vertical view of touch-screen upper substrate of the present invention;
Fig. 5 is a capacitive touch screen structural representation of the present invention;
Fig. 6 is the technological process sketch of a kind of embodiment of the method for the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Referring to Fig. 3, Fig. 4, capacitive touch screen provided by the invention and production method thereof, comprise the upper substrate 11, the infrabasal plate 16 that fit together, the flexible circuit board 17 that is connected with electrode wires on the described substrate, described flexible circuit board is crimped between the described upper and lower substrate, is electrically connected the projection 18 that part forms with substrate in described flexible circuit board and is placed in just, be provided with on another substrate with described protruding 18 positions, the corresponding groove 19 of shape in.
Convex shape is as described: long for L, wide thickness for D (not shown), flexible circuit board are the cuboid projection of H, then described groove just is the long L that is
1, wide be D
1, the degree of depth is H
1The cuboid groove, and L
1〉=L, wide be D
1〉=D, depth H
1〉=H, promptly groove 19 is a bit larger tham projection 18, so that projection 18 can be placed in the groove 19, and matches with groove 19 shapes.
The method that realizes said structure is: flexible circuit board 17 and described touch-screen are had the substrate of electrode wires, realize being electrically connected as infrabasal plate 16; And on another substrate of described touch-screen, promptly upper substrate 11 is opened a groove 19, and it is corresponding to make described groove 19 shapes, position and described flexible circuit board be electrically connected projection 18 shapes, position that part forms naturally with substrate;
Upper and lower two substrates with described touch-screen bond together by bonding agent again, and described groove, projection are contained togather just, treat that described bonding agent diffusion levelling is to the binding face that is full of upper and lower substrate; Treat after the described glue curing, encapsulate and make the capacitive touch screen after the applying.
The present invention is owing to projection, groove are corresponding, match, and be placed in fully together, can reduce the gap between upper and lower two substrates of capacitive touch screen, reduction or elimination cause whole touch screen to form high, the low defective in one side on one side after applying because of the existence of flexible circuit board.
Claims (4)
1. the production method of a capacitive touch screen comprises the following steps:
1.1 flexible circuit board is electrically connected with the substrate that described touch-screen has electrode wires; And on another substrate of described touch-screen, open a groove, it is corresponding to make described groove shapes, position and described flexible circuit board be electrically connected convex shape, position that part forms with substrate;
1.2 upper and lower two substrates of described touch-screen are bonded together by bonding agent, and described groove, projection are contained togather just, treat that described bonding agent diffusion levelling is to the binding face that is full of upper and lower substrate;
1.3 after described glue curing, encapsulate and make the capacitive touch screen after the applying.
2. the production method of capacitive touch screen according to claim 1, it is characterized in that: in step 1.1, convex shape is as described: long for L, wide thickness for D, flexible circuit board are the cuboid projection of H, then described groove just is L for long
1, wide be D
1, the degree of depth is H
1The cuboid groove, and L
1〉=L, wide be D
1〉=D, depth H
1〉=H.
3. capacitive touch screen, comprise the upper and lower substrate that fits together, the flexible circuit board that is connected with electrode wires on the described substrate, described flexible circuit board is crimped between the described upper and lower substrate, it is characterized in that: be electrically connected the projection that part forms with substrate in described flexible circuit board and be placed in just, be provided with on another substrate with described raised position, the corresponding groove of shape in.
4. capacitive touch screen according to claim 3 is characterized in that: convex shape is as described: long for L, wide thickness for D, flexible circuit board are the cuboid projection of H, then described groove just is the long L that is
1, wide be D
1, the degree of depth is H
1The cuboid groove, and L
1〉=L, wide be D
1〉=D, depth H
1〉=H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102618477A CN101950225B (en) | 2010-08-24 | 2010-08-24 | Capacitance touch screen and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102618477A CN101950225B (en) | 2010-08-24 | 2010-08-24 | Capacitance touch screen and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101950225A true CN101950225A (en) | 2011-01-19 |
| CN101950225B CN101950225B (en) | 2012-07-25 |
Family
ID=43453733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102618477A Expired - Fee Related CN101950225B (en) | 2010-08-24 | 2010-08-24 | Capacitance touch screen and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101950225B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184049A (en) * | 2011-05-27 | 2011-09-14 | 瀚斯宝丽显示科技（南京）有限公司 | Glue-overflow-preventing stitching structure and method for flexible circuit board for touch screen |
| CN103294249A (en) * | 2012-08-17 | 2013-09-11 | 上海天马微电子有限公司 | Manufacturing method for touch panel |
| CN104516562A (en) * | 2013-09-29 | 2015-04-15 | 宏碁股份有限公司 | Touch panel and manufacturing method thereof |
| US9606582B2 (en) | 2013-09-25 | 2017-03-28 | Acer Incorporated | Touch panel and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009104461A1 (en) * | 2008-02-20 | 2009-08-27 | ソニー株式会社 | Touch panel and method for manufacturing the same |
| CN201302713Y (en) * | 2008-11-03 | 2009-09-02 | 敏理投资股份有限公司 | Touch panel |
| CN101751183A (en) * | 2010-01-04 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Touch screen structure |
| CN101776967A (en) * | 2009-01-08 | 2010-07-14 | 精工爱普生株式会社 | Method for manufacturing touch panel, touch panel, display device, and electronic apparatus |
| CN201788496U (en) * | 2010-08-24 | 2011-04-06 | 深圳市中显微电子有限公司 | Capacitive touch screen |
-
2010
- 2010-08-24 CN CN2010102618477A patent/CN101950225B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009104461A1 (en) * | 2008-02-20 | 2009-08-27 | ソニー株式会社 | Touch panel and method for manufacturing the same |
| CN201302713Y (en) * | 2008-11-03 | 2009-09-02 | 敏理投资股份有限公司 | Touch panel |
| CN101776967A (en) * | 2009-01-08 | 2010-07-14 | 精工爱普生株式会社 | Method for manufacturing touch panel, touch panel, display device, and electronic apparatus |
| CN101751183A (en) * | 2010-01-04 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Touch screen structure |
| CN201788496U (en) * | 2010-08-24 | 2011-04-06 | 深圳市中显微电子有限公司 | Capacitive touch screen |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184049A (en) * | 2011-05-27 | 2011-09-14 | 瀚斯宝丽显示科技（南京）有限公司 | Glue-overflow-preventing stitching structure and method for flexible circuit board for touch screen |
| US8859086B2 (en) | 2011-05-27 | 2014-10-14 | Hannstar Display(Nanjing) Corp. | Bonded structure of touch screen with flexible circuit board for preventing overflow and bonding method thereof |
| CN102184049B (en) * | 2011-05-27 | 2014-12-10 | 南京瀚宇彩欣科技有限责任公司 | Glue-overflow-preventing stitching structure and method for flexible circuit board for touch screen |
| CN103294249A (en) * | 2012-08-17 | 2013-09-11 | 上海天马微电子有限公司 | Manufacturing method for touch panel |
| WO2014026441A1 (en) * | 2012-08-17 | 2014-02-20 | 上海天马微电子有限公司 | Manufacturing method of touch screen |
| US8961729B2 (en) | 2012-08-17 | 2015-02-24 | Shanghai Tianma Micro-electronics Co., Ltd. | Method for manufacturing touch panel |
| CN103294249B (en) * | 2012-08-17 | 2016-05-18 | 上海天马微电子有限公司 | The manufacture method of touch-screen |
| US9606582B2 (en) | 2013-09-25 | 2017-03-28 | Acer Incorporated | Touch panel and manufacturing method thereof |
| CN104516562A (en) * | 2013-09-29 | 2015-04-15 | 宏碁股份有限公司 | Touch panel and manufacturing method thereof |
| CN104516562B (en) * | 2013-09-29 | 2017-10-27 | 宏碁股份有限公司 | Contact panel and its manufacture method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101950225B (en) | 2012-07-25 |
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