CN203433494U - OGS capacitive touch screen - Google Patents
OGS capacitive touch screen Download PDFInfo
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- CN203433494U CN203433494U CN201320249667.6U CN201320249667U CN203433494U CN 203433494 U CN203433494 U CN 203433494U CN 201320249667 U CN201320249667 U CN 201320249667U CN 203433494 U CN203433494 U CN 203433494U
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Abstract
The utility model discloses an OGS capacitive touch screen. A lamination structure includes a glass cover board layer, a transparent conducting layer, an insulation shading layer, a conducting oil layer and an anti-explosion film protection layer arranged from top down. The transparent conducting layer includes a pattern electrode and a wiring electrode. A groove is arranged in the insulation shading layer. The conducting oil layer is filled into the groove to act as a pin for electric connection with an FPC. The FPC provided with a touch control IC chip is connected to the conducting oil layer. By adopting the OGS capacitive touch screen provided by the utility model, touch screen product performance and reliability can be improved, production technique can be simplified, investment and production cost can be reduced and product yield and production efficiency can be improved.
Description
Technical field
The utility model relates to the technical field of touch-screen, relates in particular to a kind of OGS capacitive touch screen.
Background technology
Touch-screen is as a kind of intelligentized human-computer interaction interface product, a lot of fields in social production and life have obtained application more and more widely at present, especially with the fastest developing speed in consumer electronics sector (as fields such as smart mobile phone, panel computers).
Touch screen technology is of a great variety, mainly comprises resistance-type, condenser type, infrared type, table sound wave type etc.Capacitive touch screen not only shows and is quick on the draw, and support multi-point touch, and the life-span is long, along with controlling the maturation of IC technology, has become mainstream technology in the market.And the OGS technology of a new generation is that capacitive touch screen will be new developing direction.The G/G touch screen panel plate structure of main flow is as shown in Fig. 1 a and Fig. 1 b at present, and Fig. 1 a is two-sided ITO structure (DITO) sensor, and Fig. 1 b is one side ITO structure (SITO) sensor.In Fig. 1 a and Fig. 1 b, the FPC with touch-control IC 15 14 is connected on glass sensor 12, then sensor 12 is bonded together by organic transparent optical cement 13 with cover-plate glass 11, formed G/G structure touch panel.OGS touch screen panel plate structure as shown in Figure 2, is directly produced on sensor the lower surface of cover-plate glass 21, and the FPC 24 connecting with touch-control IC 25 forms OGS touch panel afterwards.From technological layer, OGS touch screen technology, than G/G touch technology, owing to saving a slice glass baseplate and bonding process, therefore has the advantages such as simple in structure, light, thin, light transmission is good, is beneficial to and reduces production costs, improves product yield.
At present, existing OGS touch-screen product structure as shown in Figure 3 a, first on cover-plate glass 11, print one deck organic insulation ink light shield layer 12, then make ITO transparent pattern electrode layer 13, by hot pressing, FPC 14 (with touch-control IC 15) is coupled together with ito transparent electrode layer pin electricity, final electrode layer below attaches one deck blow-out disc 16, prevents from that cover-plate glass from breaking to cause danger.This structure there will be a lot of problems in manufacturing process, is first that the thickness of ink for screen printing is very thick, causes forming very high step between ink and glass, directly affects the making of ITO conductive layer pattern and lead-in wire pin thereof; Next is ink non-refractory, and is difficult at low temperatures obtain low-resistance ITO conductive layer; In addition, the non-constant of the adhesion of ITO conductive layer on ink, directly affects the connection of FPC and the reliability of product.
Fig. 3 b is a kind of improved OGS touch screen panel plate structure, by covering one deck organic stream flat bed (OC layer) 37 on ink light shield layer surface 32, this step problem causing due to ink light shield layer that solved, improved the flatness on cover-plate glass surface simultaneously, and then improved the homogeneity of ITO conductive layer, facilitate the making of contact conductor pin and the connection of FPC.This structure, on the one hand, because ink and OC material exist thermotolerance problem, particularly ink, so the resistance value of ITO conductive layer and adhesion still have problems; On the other hand, owing to having increased one deck OC, so the thickness of product and penetrability received certain impact, and it is more complicated that technique also becomes.
Utility model content
The utility model, mainly for the existing technical matters of OGS touch-screen, has proposed a kind of OGS capacitive touch screen.
The concrete technical scheme that the utility model adopts is as follows:
A capacitive touch screen, is characterized in that, rhythmo structure from top to bottom comprises glass cover flaggy, transparency conducting layer, insulation light shield layer, conductive ink layer, blow-out disc protective seam; Described transparency conducting layer comprises pattern electrode and walks line electrode, in insulation light shield layer, is provided with groove, and conductive ink layer is filled into described groove as carrying out with FPC the pin that electricity is connected, and with the FPC of touch-control IC chip, is connected on conductive ink layer.
Described OGS capacitive touch screen, is characterized in that, the ITO conductive layer that described transparency conducting layer is patterning.
Described OGS capacitive touch screen, is characterized in that, the material of described insulation light shield layer is black dielectric ink, and the mode by screen painting forms light shield layer.
Described OGS capacitive touch screen, is characterized in that, in described insulation light shield layer, is provided with groove, and grooved area below is the cabling electrode pin of transparency conducting layer.
Described OGS capacitive touch screen, is characterized in that, the making of described groove can directly utilize the method for screen painting, also can utilize the method for printing and laser ablation; Utilize electrically conductive ink to fill above-mentioned groove, and make electrically conductive ink between different grooves, keep being electrically insulated.
Described OGS capacitive touch screen, is characterized in that, described glass cover flaggy adopts protection tempered glass.
Described OGS capacitive touch screen, is characterized in that, the pattern of described conductive ink layer can pass through mode of printing, also can pass through laser ablation mode.
Described OGS capacitive touch screen, is characterized in that, the color of described electrically conductive ink is identical with the material color of insulation light shield layer.
The utility model has the advantages that:
Compared with prior art, the OGS capacitive touch screen the utility model proposes not only can improve electric property and the homogeneity of ITO conductive layer, strengthen the adhesion of film, be conducive to realize the graphical of ITO conductive layer, facilitate transparent electrode layer pin to be connected with the electricity of FPC, and can simplify production technology, enhance product performance, reliability and production efficiency.
Accompanying drawing explanation
Fig. 1 a is the schematic diagram of the G/G touch screen panel plate structure of two-sided ITO structure.
Fig. 1 b is the schematic diagram of the G/G touch screen panel plate structure of one side ITO structure.
Fig. 2 is the schematic diagram of OGS touch screen panel plate structure.
Fig. 3 a is the schematic diagram of existing OGS touch screen panel plate structure.
Fig. 3 b is the schematic diagram of existing improved OGS touch screen panel plate structure.
Fig. 4 is the structural representation of OGS capacitive touch screen of the present utility model.
Fig. 5 a is the schematic diagram of the screen structure of serigraphy insulating black ink.
Fig. 5 b is the schematic diagram of the ink layer structure of serigraphy insulating black ink.
Fig. 6 is a kind of graphic structure schematic diagram of ink light shield layer cover plate.
Fig. 7 a is the structural representation that utilizes the conductive ink layer of serigraphy formation.
Fig. 7 b is the final graphics structural representation of black conductive ink.
Fig. 8 is the graphic structure schematic diagram of another kind of ink light shield layer cover plate.
Embodiment
For the technical matters that the utility model is solved, technical scheme makes those of ordinary skill in the art clearer, below in conjunction with accompanying drawing explanation, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
A kind of OGS capacitive touch screen; its structure as shown in Figure 4; on cover-plate glass (protection tempered glass) 41, make successively transparency conducting layer 42, insulation light shield layer 43, conductive ink layer 44; FPC45 with touch-control IC chip 46 is connected on conductive ink layer 44, on conductive layer 42 surfaces, attaches one deck blow-out disc protective seam 47.Above-mentioned transparency conducting layer 42 comprises transparent pattern electrode and the transparent line electrode of walking, and in above-mentioned insulation light shield layer 43, has groove structure, and above-mentioned conductive ink layer 44 is filled above-mentioned groove as the electrode pin that connects FPC 45.
Embodiment mono-:
First on cover-plate glass, make transparency conducting layer (as ITO) and graphical, next serigraphy one deck black dielectric ink, directly in the inner bar-shaped trough structure that forms of black ink layer, and then serigraphy one deck black conductive ink (as charcoal slurry), screened conductive ink pattern is identical with above-mentioned groove structure graph, finally FPC is connected on electrically conductive ink by hot pressing mode.
Concrete implementation step:
1, on cover-plate glass, make transparency conducting layer (as ITO) and graphical, utilize the method for vacuum magnetic-control sputtering to make ITO transparent conductive film, then by gluing, exposure, development, post bake, etching and striping technique, ITO is carried out graphically.
Concrete technology parameter:
Plated film vacuum tightness: 0.01 ~ 0.5Pa, temperature: 220 ~ 300 ℃, the thickness 10nm ~ 20nm of ito thin film layer;
Coating photoresist, covers etched ito thin film layer, the thickness 1600 ~ 2000nm of photoresist, and in homogeneity 5%, preliminary drying temperature: 80 ~ 90 ℃;
Photoresist is exposed, i.e. photoetching electrode pattern on photoresist, conditions of exposure is: ultraviolet wavelength: 365nm, luminous flux: 100 ~ 120mj, the light shield of ITO electrode pattern is chromium plate, apart from the size 100um ~ 200um of substrate;
To photoresist developing sclerosis, adopt NaOH, concentration 0.1 ~ 0.08MOL/L, temperature: 20 ~ 35 ℃, 50 seconds ~ 120 seconds time, hardening temperature: 100 ~ 120 ℃, 30 ~ 35 minutes time;
Etching ito thin film layer, forms ito thin film layer electrode pattern, and material: HCL60% ~ 6,5%+,HO2 40% ~ 35% is used in etching, temperature: 40 ~ 45 ℃, and the time: 120 ~ 220 seconds;
Remove photoresist, form ITO electrode, use material: NaOH, concentration 2.0 ~ 1.5MOL/L, temperature: 30 ~ 35 ℃, 100 seconds ~ 120 seconds time, finally use pure water rinsing;
2, by serigraphy, forming insulating black ink light shield layer, there is bar-shaped trough structure in ink layer inside.
The half tone graphic structure of printing as shown in Figure 5 a, comprises part 52 and the impervious part 51 of ink and 53 that ink can see through.The ink figure forming by printing as shown in Figure 5 b, comprises inked areas 55, ito transparent electrode area of the pattern 54 and ito transparent electrode pin field 56.
Concrete technology parameter:
The distance of half tone and glass: net distance: 3.0-4.0mm, glue is scraped height 20-30mm, and glue is scraped angle: 60-85 degree, glue is scraped pressure 3.0-4.0Mpa;
Baking sintering: the glass that silk-screen is good is put into baking box; The baking box heating-up time is 15-30min, and constant temperature time is 25-35min, and temperature is 130-160 ℃, and the temperature difference is not more than 10 ℃.
3, serigraphy one deck black conductive ink (as charcoal slurry) again, screened conductive ink pattern is identical with above-mentioned bar-shaped trough structure graph, finally FPC is connected on electrically conductive ink by hot pressing mode, complete FPC and be connected with the electricity between ITO pattern electrodes layer, final OGS product structure as shown in Figure 4 above.
Embodiment bis-:
First on cover-plate glass, make transparency conducting layer (as ITO) and graphical, next serigraphy one deck black dielectric ink, utilize laser ablation mode to make bar-shaped trough structure, and then serigraphy one deck black conductive ink (as charcoal slurry), by the mode of laser ablation, make screened conductive ink pattern equally, figure is identical with above-mentioned groove structure graph, finally FPC is connected on electrically conductive ink by hot pressing mode.This embodiment is with respect to directly utilizing the mode of serigraphy in embodiment one, the precision of bar-shaped trough structure and the yield of product all improve a lot.
Concrete implementation step:
1, on cover-plate glass, make transparency conducting layer (as ITO) and graphical.
2, by serigraphy, form insulating black ink light shield layer, the graphic structure of ink layer as shown in Figure 6, comprises ITO pattern electrodes layer region 61 and inked areas 62.
3, utilize laser ablation technique in inked areas, to make bar-shaped trough structure, as shown in Figure 5 b.
4, utilize serigraphy to form electrically conductive ink (as charcoal slurry) layer, as shown in Figure 7a, 71 is conduction black ink (as charcoal slurry) to the graphic structure of ink layer.
5, adopt laser ablation technique to remove unnecessary electrically conductive ink, make electrically conductive ink just fill above-mentioned bar-shaped trough structural region, as shown in Figure 7b, 72 is electrically conductive ink region to the final graphic structure of electrically conductive ink.
6, finally FPC is connected on electrically conductive ink by hot pressing mode, completes FPC and be connected with the electricity between ITO pattern electrodes layer, final OGS product structure as shown in Figure 4 above.
Embodiment tri-:
First on cover-plate glass, make transparency conducting layer (as ITO) and graphical, next serigraphy one deck black dielectric ink, in the inner strip groove structure that forms of black ink layer, then serigraphy one deck black conductive ink (as charcoal slurry) again on groove structure graph, utilize laser ablation technology conductive ink layer graphically to be formed to the pin of ITO pattern electrode, serigraphy one deck dielectric ink layer more afterwards, and expose the pin part that electrically conductive ink forms.Finally FPC is connected on electrically conductive ink by hot pressing mode.
Concrete implementation step:
1, on cover-plate glass, make transparency conducting layer (as ITO) and graphical.
2, by serigraphy, form insulating black ink light shield layer, the graphic structure of ink layer as shown in Figure 8, comprises inked areas 81, ITO pattern electrodes layer region 82 and strip groove structure region 83.
3, utilize serigraphy at the above-mentioned formation electrically conductive ink of above-mentioned groove structure graph (as charcoal slurry) layer, as shown in Figure 7a, 71 is conduction black ink (as charcoal slurry) to the graphic structure of ink layer.
4, adopt laser ablation technique to remove unnecessary electrically conductive ink, make electrically conductive ink just fill above-mentioned bar-shaped trough structural region, as shown in Figure 7b, 72 is electrically conductive ink region to the final graphic structure of electrically conductive ink.
5, again by serigraphy one deck black dielectric ink, the graphic structure of ink layer is identical with Fig. 7 a, and recycling laser etching method is removed the dielectric ink of electrically conductive ink top, and the part of black conductive inked areas is exposed as the pin that connects FPC.
6, finally FPC is connected on electrically conductive ink by hot pressing mode, completes FPC and be connected with the electricity between ITO pattern electrodes layer, final OGS product structure as shown in Figure 4 above.
Claims (8)
1. an OGS capacitive touch screen, is characterized in that, rhythmo structure from top to bottom comprises glass cover flaggy, transparency conducting layer, insulation light shield layer, conductive ink layer, blow-out disc protective seam; Described transparency conducting layer comprises pattern electrode and walks line electrode, in insulation light shield layer, is provided with groove, and conductive ink layer is filled into described groove as carrying out with FPC the pin that electricity is connected, and with the FPC of touch-control IC chip, is connected on conductive ink layer.
2. OGS capacitive touch screen as claimed in claim 1, is characterized in that, the ITO conductive layer that described transparency conducting layer is patterning.
3. OGS capacitive touch screen as claimed in claim 1, is characterized in that, the material of described insulation light shield layer is black dielectric ink, and the mode by screen painting forms light shield layer.
4. OGS capacitive touch screen as claimed in claim 1, is characterized in that, in described insulation light shield layer, is provided with groove, and grooved area below is the cabling electrode pin of transparency conducting layer.
5. the OGS capacitive touch screen as described in claim 1 or 4, is characterized in that, the making of described groove can directly utilize the method for screen painting, also can utilize the method for printing and laser ablation.
6. OGS capacitive touch screen as claimed in claim 1, is characterized in that, described glass cover flaggy adopts protection tempered glass.
7. OGS capacitive touch screen as claimed in claim 1, is characterized in that, the pattern of described conductive ink layer can pass through mode of printing, also can pass through laser ablation mode.
8. OGS capacitive touch screen as claimed in claim 1, is characterized in that, the color of described electrically conductive ink is identical with the material color of insulation light shield layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201320249667.6U CN203433494U (en) | 2013-05-09 | 2013-05-09 | OGS capacitive touch screen |
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| CN201320249667.6U CN203433494U (en) | 2013-05-09 | 2013-05-09 | OGS capacitive touch screen |
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| CN203433494U true CN203433494U (en) | 2014-02-12 |
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| CN201320249667.6U Expired - Fee Related CN203433494U (en) | 2013-05-09 | 2013-05-09 | OGS capacitive touch screen |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103853410A (en) * | 2014-03-05 | 2014-06-11 | 江西省天翌光电有限公司 | Manufacturing process for functional sheet of OGS (One Glass Solution) touch screen |
| CN106775149A (en) * | 2016-12-02 | 2017-05-31 | 东莞市平波电子有限公司 | A kind of OGS touch screen and preparation method thereof |
| CN106782770A (en) * | 2016-11-29 | 2017-05-31 | 东莞理工学院 | A kind of laser-induced thermal etching OGS touch screen conductive film |
| US20170269737A1 (en) * | 2015-06-10 | 2017-09-21 | Boe Technology Group Co., Ltd. | Touch screen, manufacturing method thereof and display device |
| CN107544712A (en) * | 2017-08-10 | 2018-01-05 | 维沃移动通信有限公司 | A kind of cover-plate glass, cover-plate glass preparation method and mobile terminal |
| CN108196712A (en) * | 2017-12-29 | 2018-06-22 | 重庆市中光电显示技术有限公司 | Touch screen structure |
| CN108665835A (en) * | 2018-07-05 | 2018-10-16 | 池州市浮子信息技术服务有限公司 | A kind of tangibly culture and propaganda action display screen |
| CN110187799A (en) * | 2019-04-26 | 2019-08-30 | 康惠（惠州）半导体有限公司 | Cover board and its manufacture craft with capacitive touch function |
-
2013
- 2013-05-09 CN CN201320249667.6U patent/CN203433494U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103853410A (en) * | 2014-03-05 | 2014-06-11 | 江西省天翌光电有限公司 | Manufacturing process for functional sheet of OGS (One Glass Solution) touch screen |
| CN103853410B (en) * | 2014-03-05 | 2017-02-08 | 江西省天翌光电有限公司 | Manufacturing process for functional sheet of OGS (One Glass Solution) touch screen |
| US20170269737A1 (en) * | 2015-06-10 | 2017-09-21 | Boe Technology Group Co., Ltd. | Touch screen, manufacturing method thereof and display device |
| CN106782770A (en) * | 2016-11-29 | 2017-05-31 | 东莞理工学院 | A kind of laser-induced thermal etching OGS touch screen conductive film |
| CN106775149A (en) * | 2016-12-02 | 2017-05-31 | 东莞市平波电子有限公司 | A kind of OGS touch screen and preparation method thereof |
| CN107544712A (en) * | 2017-08-10 | 2018-01-05 | 维沃移动通信有限公司 | A kind of cover-plate glass, cover-plate glass preparation method and mobile terminal |
| CN108196712A (en) * | 2017-12-29 | 2018-06-22 | 重庆市中光电显示技术有限公司 | Touch screen structure |
| CN108665835A (en) * | 2018-07-05 | 2018-10-16 | 池州市浮子信息技术服务有限公司 | A kind of tangibly culture and propaganda action display screen |
| CN110187799A (en) * | 2019-04-26 | 2019-08-30 | 康惠（惠州）半导体有限公司 | Cover board and its manufacture craft with capacitive touch function |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20210509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |