CN102830845B - Production method of touch display screen - Google Patents
Production method of touch display screen Download PDFInfo
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- CN102830845B CN102830845B CN201210297862.6A CN201210297862A CN102830845B CN 102830845 B CN102830845 B CN 102830845B CN 201210297862 A CN201210297862 A CN 201210297862A CN 102830845 B CN102830845 B CN 102830845B
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Abstract
The invention discloses a production method of a touch display screen. The production method includes the main steps of firstly, preparing alignment marks on induction glass and display screen glass of a capacitive touch screen; secondly, bonding an IC (integrated circuit) and a flexible circuit board to the display screen glass and bonding the flexible circuit board to the induction glass; thirdly, inspecting the display screen glass and the induction glass; fourthly, applying optical adhesive between the display screen glass and the induction glass; fifthly, using a camera of an alignment device to capture the positions of the alignment marks on the display screen glass and the induction glass, allowing a controller of the alignment device to calculate deflection of the display screen glass and the induction glass, and controlling a motor to drive the display screen glass or induction glass to move for correction; and sixthly adhering the display screen glass and the induction glass. Precision in integration of the capacitive touch screen and a display module is improved, production flow of TLI (transport-level interface) products is shortened, rejection rate of products is reduced, product precision is more than doubled, and accordingly product grade and market competitiveness are improved.
Description
Technical field
The present invention relates to touch display screen, particularly relate to a kind of manufacture method of capacitive touch display screen.
Background technology
In existing capacitive touch display screen (TLI) manufacturing technology, after respectively capacitive touch screen (TP) and display screen (LCM) being completed, position with the profile of TP profile and LCM, then both are seamless applying.TP profile adopts numerical control cutting machine (CNC) cutting, and tolerance is in +/-0.05mm, LCM contour tolerance at +/-0.1mm, and add the impact of the precision of fixture used and equipment when fitting TP and LCM, manufacturing tolerance is at more than +/-0.15mm.Be difficult to ensure that display screen glass viewing area is corresponding with the functional areas of TP accurately, even occur the situation of false touch.
Summary of the invention
The present invention will solve prior art to position the large problem of build-up tolerance in mode with profile, proposes a kind of figure that adopts and locates the manufacture method of capacitive touch screen and display screen being fitted.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is a kind of manufacture method of touch display screen, comprises the following steps: step one: adopt gold-tinted making technology on the induction glass of capacitive touch screen and display screen glass, to prepare alignment mark respectively; Step 2: be bundled in display screen glass by display IC, is bundled in FPC in display screen glass, is bundled in by FPC on induction glass; Step 3: respectively functional check and visual testing are carried out to the display screen glass after binding and induction glass; Step 4: by smearing optical glue between the display screen glass of functional check and visual testing and induction glass; Step 5: the display screen glass after gluing and induction glass are put into contraposition equipment, the camera of contraposition equipment absorbs the alignment mark position on display screen glass and induction glass respectively, the position deviation of both the controller calculating of contraposition equipment, and then control motor driving display screen glass or respond to glass to move check and correction; Step 6: pressure is applied to the display screen glass and induction glass that complete contraposition and makes it bonding; Step 7: after display screen glass and induction bonding glass, coat bonded adhesives in the induction corner of glass top surface or four limits, to fit one deck cover at induction glass top surface; Step 8: at the lower surface back of the body buckle back light source of display screen glass.
Above-mentioned alignment mark comprises two groups, and two groups of alignment marks are in two corners of display screen glass and induction glass respectively.
Often organize alignment mark and can comprise the cruciform color lump be prepared in display screen glass, and four the discrete little square color lumps be prepared on induction glass, can form during the center superposition of the center of cruciform color lump and four little square color lumps one large square.
Often organize alignment mark and can also comprise the cruciform color lump be prepared on induction glass, and be prepared in the discrete little square color lump of in display screen glass four, a large square can be formed during the center superposition of the center of cruciform color lump and four little square color lumps.
Pressure in described step 6 is 0.2MPa-0.6Mpa, applies pressure time 6S-20S.
Optical glue described in described step 4 adopts OCA optical cement or OCR optical cement.
Compared with prior art, the present invention optimizes TLI technological process, improves the integrated precision of capacitance touch screen and display module, shorten the Making programme of TLI product, reduce product fraction defective scrappage, Product Precision is enhanced about more than once, and improves class and the market competitiveness of product by this.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described in detail, wherein:
Fig. 1 is the gauge point in present pre-ferred embodiments in display screen glass;
Fig. 2 is the gauge point responded in present pre-ferred embodiments on glass;
Fig. 3 is the design sketch that the gauge point in present pre-ferred embodiments in display screen glass and on induction glass overlaps;
Fig. 4 is display screen glass and induction glass gluing process schematic in present pre-ferred embodiments;
Fig. 5 is the bonding cover schematic diagram of present pre-ferred embodiments.
Embodiment
The invention discloses a kind of manufacture method of touch display screen, it comprises the following steps:
Step one: adopt gold-tinted making technology to prepare alignment mark (MARK) respectively on the induction glass of capacitive touch screen and display screen glass;
Step 2: be bundled in display screen glass by display IC, is bundled in display screen glass by FPC (FPC), is bundled in by FPC on induction glass;
Step 3: respectively functional check and visual testing are carried out to the display screen glass after binding and induction glass;
Step 4: by smearing optical glue between the display screen glass of functional check and visual testing and induction glass;
Step 5: the display screen glass after gluing and induction glass are put into contraposition equipment, and wherein display screen glass is attracted on the worktable of contraposition equipment, smears facing up of optical glue; Induction glass is attracted on the vacuum slot above worktable, smears facing down of optical glue; The camera of contraposition equipment absorbs the alignment mark position on display screen glass and induction glass respectively, the position deviation of both the controller calculating of contraposition equipment, and controller controls motor according to result of calculation and drives display screen glass or induction glass to move check and correction;
Step 6: pressure is applied to the display screen glass and induction glass that complete contraposition and makes it bonding;
Step 7: after display screen glass and induction bonding glass, coat bonded adhesives in the induction corner of glass top surface or four limits, to fit one deck cover at induction glass top surface;
Step 8: at the lower surface back of the body buckle back light source of display screen glass.
For improving aligning accuracy, in the preferred embodiment, alignment mark comprises two groups, and two groups of alignment marks are in two corners of display screen glass and induction glass respectively.
In the preferred embodiment, often organize alignment mark and comprise the cruciform color lump (gauge point referring in the display screen glass shown in Fig. 1) be prepared in display screen glass, and be prepared in the discrete little square color lump (gauge point referring on the induction glass shown in Fig. 2) of four of responding on glass.200um is can be designed as because gold-tinted processing procedure precision can control MARK target size a in about 2um, Fig. 1 and Fig. 2; When Mobile vacuum suction nozzle or worktable make the center superposition of the center of cruciform color lump and four little square color lumps, upper and lower gauge point forms a large square.When contraposition is inaccurate, there will be gap between cruciform and little square, prompting contraposition does not complete, and needs to continue adjustment contraposition; Only have when accurate contraposition, complete large square could be occurred.Fig. 3 shows the design sketch that the gauge point in preferred embodiment in display screen glass and on induction glass overlaps.Fig. 4 shows display screen glass and induction glass gluing process schematic in preferred embodiment, and icon 2 indication is induction glass, and icon 3 indication is display screen glass, and after both contrapositions complete, the MARK on it forms large square.
After display screen glass and induction bonding glass, its intensity is not high, needs to improve intensity and wearing quality.In the example of fig. 5, bonded adhesives is coated on two jiaos above induction glass top surface and a limit of below, and icon 1 indication is bonded adhesives, is bonded in by transparent cover above induction glass and improves intensity and the wearing quality of product.
In another embodiment, often organize alignment mark and comprise the cruciform color lump be prepared on induction glass, and be prepared in the discrete little square color lump of in display screen glass four, a large square can be formed during the center superposition of the center of cruciform color lump and four little square color lumps.
In the preferred embodiment, the pressure of step 6 is 0.2MPa-0.6Mpa, applies pressure time 6S-20S.
In the preferred embodiment, the optical glue described in step 4 adopts solid-state OCA optical cement or the OCR optical cement of liquid.
Above embodiment is only and illustrates, non-ly provides constraints.Anyly do not depart from the application's spirit and category, and to its equivalent modifications of carrying out or change, among the right that all should be contained in the application.
Claims (5)
1. a manufacture method for touch display screen, is characterized in that, comprises the following steps:
Step one: adopt gold-tinted making technology to prepare alignment mark respectively on the induction glass of capacitive touch screen and display screen glass, described alignment mark comprises two groups, two groups of alignment marks are in two corners of display screen glass and induction glass respectively, two groups of alignment marks are respectively cruciform color lump and four discrete little square color lumps, can form a large square during center superposition of the center of cruciform color lump and four little square color lumps;
Step 2: be bundled in display screen glass by display IC, is bundled in FPC in display screen glass, is bundled in by FPC on induction glass;
Step 3: respectively functional check and visual testing are carried out to the display screen glass after binding and induction glass;
Step 4: by smearing optical glue between the display screen glass of functional check and visual testing and induction glass;
Step 5: the display screen glass after gluing and induction glass are put into contraposition equipment, the camera of contraposition equipment absorbs the alignment mark position on display screen glass and induction glass respectively, the position deviation of both the controller calculating of contraposition equipment, and then control motor driving display screen glass or respond to glass to move check and correction;
Step 6: pressure is applied to the display screen glass and induction glass that complete contraposition and makes it bonding;
Step 7: after display screen glass and induction bonding glass, coat bonded adhesives in the induction corner of glass top surface or four limits, to fit one deck cover at induction glass top surface;
Step 8: at the lower surface back of the body buckle back light source of display screen glass;
When contraposition is inaccurate, between cruciform and little square, there will be gap, continue adjustment contraposition; Only have when accurate contraposition, complete large square could be occurred.
2. the manufacture method of touch display screen as claimed in claim 1, it is characterized in that: often organize alignment mark and comprise the cruciform color lump be prepared in display screen glass, and four the discrete little square color lumps be prepared on induction glass, can form during the center superposition of the center of cruciform color lump and four little square color lumps one large square.
3. the manufacture method of touch display screen as claimed in claim 1, it is characterized in that: often organize alignment mark and comprise the cruciform color lump be prepared on induction glass, and be prepared in the discrete little square color lump of in display screen glass four, a large square can be formed during the center superposition of the center of cruciform color lump and four little square color lumps.
4. the manufacture method of touch display screen as claimed in claim 1, is characterized in that: the pressure in described step 6 is 0.2MPa-0.6Mpa, applies pressure time 6S-20S.
5. the manufacture method of touch display screen as claimed in claim 1, is characterized in that: the optical glue described in described step 4 adopts OCA optical cement or OCR optical cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210297862.6A CN102830845B (en) | 2012-08-21 | 2012-08-21 | Production method of touch display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210297862.6A CN102830845B (en) | 2012-08-21 | 2012-08-21 | Production method of touch display screen |
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| CN102830845A CN102830845A (en) | 2012-12-19 |
| CN102830845B true CN102830845B (en) | 2015-07-01 |
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| CN201210297862.6A Active CN102830845B (en) | 2012-08-21 | 2012-08-21 | Production method of touch display screen |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104881194A (en) * | 2015-06-19 | 2015-09-02 | 苏州触动电子科技有限公司 | Touch area identifier of touch film |
| CN105005161B (en) * | 2015-08-10 | 2018-05-15 | 深圳晶华显示器材有限公司 | Mistake proofing crimping production method, structure and the display panel of display panel |
| CN104992641A (en) * | 2015-08-10 | 2015-10-21 | 上海和辉光电有限公司 | Manufacturing technologies for display module |
| CN108444426A (en) * | 2018-05-23 | 2018-08-24 | 昆山龙雨智能科技有限公司 | A kind of elevating mechanism and touch screen detection device for touch screen detection |
| CN109002213B (en) * | 2018-07-25 | 2021-01-26 | 信利光电股份有限公司 | Touch panel and attaching method thereof |
| CN109302839B (en) * | 2018-11-21 | 2020-10-16 | 业成科技（成都）有限公司 | Structure and method for rapidly detecting assembly precision |
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| CN1614624A (en) * | 2003-11-06 | 2005-05-11 | 松下电器产业株式会社 | Touch panel and liquid crystal display apparatus using the same |
| CN101650622A (en) * | 2009-08-18 | 2010-02-17 | 城步鼎盛微电子科技有限公司 | Technology for attaching capacitive touch screens |
| CN102253540A (en) * | 2010-05-21 | 2011-11-23 | 株式会社半导体能源研究所 | Liquid crystal display device |
| CN102269886A (en) * | 2010-06-02 | 2011-12-07 | 株式会社日立显示器 | Display device |
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| JP5103254B2 (en) * | 2008-04-16 | 2012-12-19 | 株式会社ジャパンディスプレイイースト | Capacitive touch panel and screen input type display device including the same |
| JP5164930B2 (en) * | 2009-06-05 | 2013-03-21 | 株式会社ジャパンディスプレイウェスト | Touch panel, display panel, and display device |
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| CN1614624A (en) * | 2003-11-06 | 2005-05-11 | 松下电器产业株式会社 | Touch panel and liquid crystal display apparatus using the same |
| CN101650622A (en) * | 2009-08-18 | 2010-02-17 | 城步鼎盛微电子科技有限公司 | Technology for attaching capacitive touch screens |
| CN102253540A (en) * | 2010-05-21 | 2011-11-23 | 株式会社半导体能源研究所 | Liquid crystal display device |
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