CN203849722U - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
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- CN203849722U CN203849722U CN201420266053.3U CN201420266053U CN203849722U CN 203849722 U CN203849722 U CN 203849722U CN 201420266053 U CN201420266053 U CN 201420266053U CN 203849722 U CN203849722 U CN 203849722U
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- Prior art keywords
- touch screen
- capacitive touch
- layer
- viewing area
- silver slurry
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Abstract
The utility model provides a capacitive touch screen. The middle area of the capacitive touch screen is a visual area, and the peripheral area of the capacitive touch screen is a non-visual area. The capacitive touch screen comprises a substrate, a light shading layer is printed in the area, corresponding to the non-visual area, of the substrate, and a transparent electrode layer is sputtered on the light shading layer and in the area, corresponding to the visual area, of the substrate. Transparent optical cement covers the transparent electrode layer, and a transparent electrode film covers the transparent optical cement. The transparent electrode layer is sputtered on a glass panel and is covered with the transparent electrode film, a film is reduced, lamination cost is saved, and a touch control module also has a multi-point touch effect.
Description
Technical field
The utility model relates to capacitive touch screen, particularly the capacitive touch screen of a kind of G1F (Glass-Film) structure.
Background technology
At present, capacitance type touch-control panel primary structure is divided into two kinds of diaphragm type (film type) and glass types (glass type), the diaphragm type structure of main flow is cover-plate glass+ITO (tin indium oxide) film+ito thin film, be called GFF (Glass-Film-Film, glass-film-film) structure, and the glass type structure of main flow is cover-plate glass+ito glass, be called GG (Glass-Glass, glass-glass) structure.The former is limited to senior ito thin film material and rests in minority Japanese trader hand, and the latter need to fit layer glass, binding yield is generally on the low side, these are all to cause the high main cause of capacitance touching control template cost, in order effectively to reduce the cost of contact panel, meet the lightening market trend of terminal consumption electronic product simultaneously, touch-control dealer actively sets about research and development and reduces ito thin film or ito glass consumption, layout development OGS (the mono-glass solution of one glass solution), embedded touch or GF thin film technique.
Society, the electronic products such as mobile phone, panel computer have been widely used, and machine-made electronic product is no longer subject to popular favor, and people start more and more to pursue personalized product.Yet in prior art, BM (black matrix black matrix") photoresist is generally used in bottom shading, in this case, contact panel outward appearance can only be selected black, and cannot other colors of choice for use.This can restrict popular personalization and select, and affects the development space of capacitive touch screen industry.
Utility model content
The technical problems to be solved in the utility model is need to adopt two membranes in order to overcome GFF structure in prior art, and the defects such as production cost height provide a kind of capacitive touch screen that pastes a skim.
The utility model is to solve above-mentioned technical matters by following technical proposals:
A kind of capacitive touch screen, the zone line of described capacitive touch screen is viewing area, the Wei Fei viewing area, neighboring area of described capacitive touch screen, described capacitive touch screen comprises a laminar substrate, its feature is, on the region of the corresponding non-viewing area of described substrate, be printed with a light shield layer, on described light shield layer and on the region of the corresponding viewing area of described substrate, sputter has a transparent electrode layer, on described transparent electrode layer, be covered with a transparent optical cement, on described transparent optical cement, be covered with an ELD.
Preferably, described light shield layer is ink layer.By adopting ink as light screening material, the contact panel outward appearance of capacitive touch screen can be selected various colors, meets client's individual demand.
Preferably, described transparent electrode layer is ITO electrode layer.
Preferably, described substrate is glass plate or PET film (high temperature resistance polyester film).
Preferably, described transparent optical cement is OCA (Optically Clear Adhesive) optical cement.
Preferably, described ELD is ITO electrode film.
Preferably, described ITO electrode layer comprises the sensor circuit that is positioned at viewing area, is also covered with a silver slurry layer on described ink layer, and described silver slurry layer forms peripheral circuit, the connection corresponding to described peripheral circuit of described sensor circuit.The impedance of silver slurry peripheral circuit is relatively little, adopts silver slurry peripheral circuit can reduce the impedance of whole circuit, thereby improves driving force.And the spacing between each cabling of silver slurry peripheral circuit can be accomplished very little, structure is compacter.
Preferably, described ITO electrode film comprises the sensor circuit that is positioned at viewing area, and the non-viewing area of described ITO electrode film is also covered with a silver slurry layer, and described silver slurry layer forms peripheral circuit, the connection corresponding to described peripheral circuit of described sensor circuit.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is: the utility model passes through transparent electrode layer sputter on glass plate, then is covered with ELD, has reduced thin film, has saved laminating cost, and touch module can reach the effect of multi-point touch equally simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of LENS of the capacitive touch screen of the utility model embodiment 1.
Fig. 2 is the structural representation of ITO electrode film of the capacitive touch screen of the utility model embodiment 1.
Fig. 3 is the structural representation of OCA optical cement of the capacitive touch screen of the utility model embodiment 1.
Fig. 4 is the structural representation of the capacitive touch screen of the utility model embodiment 1.
Fig. 5 is the side structure schematic diagram of the capacitive touch screen of the utility model embodiment 1.
Description of reference numerals:
Viewing area 1
Non-viewing area 2
Glass plate 3
Ink layer 4
ITO electrode layer 5
Sensor circuit 6
Silver slurry layer 7
Silver slurry peripheral circuit 8
Common factor place 9
OCA optical cement 10
ITO electrode film 11
Sensor circuit 12
Silver slurry layer 13
Silver slurry peripheral circuit 14
Common factor place 15
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
As Figure 1-5, the zone line of capacitive touch screen of the present utility model is viewing area 1, Wei Fei viewing area, neighboring area 2.Capacitive touch screen comprises a substrate, for example, be a glass plate 3, can certainly select PET film (high temperature resistance polyester film) etc. as substrate.On the region of the corresponding non-viewing area 2 of described glass plate 3, be printed with a light shield layer, preferably adopt ink layer 4.Why select ink layer to be because the light shield layer that traditional BM photoresist forms can only be black, select ink layer can select random color according to client's requirement as light shield layer, and be not only limited as this single tone of black, thereby meet the individual demand of society.
On described ink layer 4 and on the region of the corresponding viewing area 1 of described glass plate 3, be covered with a transparent electrode layer, be preferably ITO electrode layer 5.By sputtering process of the prior art, directly sputter ITO electrode layer 5 on ink layer 4 and glass plate 3, forms the circuit pattern needing.Sputtering process is existing technique, at this, does not repeat.
Described ITO electrode layer 5 comprises the sensor circuit 6 that is positioned at viewing area 1, is also covered with a silver slurry layer 7 on described ink layer 4, and described silver slurry layer 7 forms silver slurry peripheral circuit 8, described sensor circuit 6 and the corresponding connection of described silver slurry peripheral circuit 8.Silver slurry peripheral circuit 8 is from the two sides converge of capacitive touch screen to its upside, form a common factor place 9, for the later stage, at this common factor place 9, stick ACF (Anisotropic Conductive Film anisotropic conductive film), and by specialized equipment, FPC (flexible PCB) is compressed on to this common factor place 9, thereby with whole circuit communication.
On described ITO electrode layer 5, be covered with a transparent optical cement, be preferably OCA optical cement 10.
On above-mentioned OCA optical cement, be covered with again an ELD, be preferably ITO electrode film 11.Described ITO electrode film 11 comprises the sensor circuit 12 that is positioned at viewing area 1, the region of the corresponding non-viewing area 2 of described ITO electrode film 11 is also covered with a silver slurry layer 13, described silver slurry layer 13 forms silver slurry peripheral circuit 14, described sensor circuit 12 and the corresponding connection of described silver slurry peripheral circuit 14.Same, silver slurry peripheral circuit 14, from the two sides converge of capacitive touch screen to its upside, forms a common factor place 15, at this common factor place 15, stick ACF for the later stage, and by specialized equipment, FPC be compressed on to this common factor place, thereby with whole circuit communication.
The concrete circuit pattern of above-mentioned sensor circuit can design according to actual needs, and the sensor circuit 6 of ITO electrode layer 5 is realized multi-point touch together with the sensor circuit 12 of ITO electrode film.
The processing step of making this capacitive touch screen is as follows:
Step 1, makes LENS (eyeglass), and concrete structure as shown in Figure 1.
Step 101 is printed one deck or two-layer high temperature resistant ink as background color (being prior art) on the region of the corresponding non-viewing area of glass plate, can freely select ink colors according to customer demand.
Step 102, printing sputter ITO electrode layer on the glass plate of ink, makes the circuit diagram of product needed by exposure, development, etching work procedure.
Step 103, at non-viewing area printing one deck silver slurry, is connected with ITO circuit.By professional laser equipment is radium-shine on silver slurry layer, go out required silver slurry peripheral circuit subsequently.The connection corresponding to sensor circuit of silver slurry peripheral circuit.
Step 104, completes on the glass plate of above-mentioned steps, on ITO electrode layer and silver slurry layer, sticks one deck OCA optical cement.
Step 2, makes ITO electrode film, and concrete structure as shown in Figure 2.
Step 201 produces by exposure, development, etching work procedure the sensor circuit needing on ITO electrode film.
Step 202 is printed one deck silver slurry on the region of the corresponding non-viewing area of ITO electrode film, is connected with ITO circuit.By professional laser equipment is radium-shine on silver slurry layer, go out required silver slurry peripheral circuit subsequently.The connection corresponding to sensor circuit of silver slurry peripheral circuit.
Step 203 is pasted one deck OCA optical cement on ITO electrode film, on OCA optical cement, need hollow out with the common factor place opposite position of LENS silver slurry peripheral circuit, and concrete structure as shown in Figure 3.
Step 3, by LENS and the laminating of ITO electrode film.
Step 4, sticks ACF at the common factor place of the peripheral silver slurry of LENS circuit and the common factor place of the peripheral silver slurry of OCA optical cement circuit, then by professional equipment, FPC is pressed on circuit.
The structure of the capacitive touch screen finally obtaining as shown in Figure 4.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection domain of the present utility model.
Claims (8)
1. a capacitive touch screen, the zone line of described capacitive touch screen is viewing area, the Wei Fei viewing area, neighboring area of described capacitive touch screen, described capacitive touch screen comprises a laminar substrate, it is characterized in that, on the region of the corresponding non-viewing area of described substrate, be printed with a light shield layer, on described light shield layer and on the region of the corresponding viewing area of described substrate, sputter has a transparent electrode layer, on described transparent electrode layer, be covered with a transparent optical cement, on described transparent optical cement, be covered with an ELD.
2. capacitive touch screen as claimed in claim 1, is characterized in that, described light shield layer is ink layer.
3. capacitive touch screen as claimed in claim 2, is characterized in that, described transparent electrode layer is ITO electrode layer.
4. capacitive touch screen as claimed in claim 1, is characterized in that, described substrate is glass plate or PET film.
5. capacitive touch screen as claimed in claim 1, is characterized in that, described transparent optical cement is OCA optical cement.
6. capacitive touch screen as claimed in claim 1, is characterized in that, described ELD is ITO electrode film.
7. capacitive touch screen as claimed in claim 3, it is characterized in that, described ITO electrode layer comprises the sensor circuit that is positioned at viewing area, is also covered with a silver slurry layer on described ink layer, described silver slurry layer forms peripheral circuit, the connection corresponding to described peripheral circuit of described sensor circuit.
8. capacitive touch screen as claimed in claim 6, it is characterized in that, described ITO electrode film comprises the sensor circuit that is positioned at viewing area, the non-viewing area of described ITO electrode film is also covered with a silver slurry layer, described silver slurry layer forms peripheral circuit, the connection corresponding to described peripheral circuit of described sensor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266053.3U CN203849722U (en) | 2014-05-23 | 2014-05-23 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266053.3U CN203849722U (en) | 2014-05-23 | 2014-05-23 | Capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849722U true CN203849722U (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420266053.3U Expired - Fee Related CN203849722U (en) | 2014-05-23 | 2014-05-23 | Capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203849722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107197062A (en) * | 2017-07-06 | 2017-09-22 | 上海大和衡器有限公司 | Determine the communication terminal and its electrode forming method of body data |
| CN109471568A (en) * | 2018-11-05 | 2019-03-15 | 深圳市鸿展光电有限公司 | A kind of production method of the full laser technology of GFF structure touch screen |
-
2014
- 2014-05-23 CN CN201420266053.3U patent/CN203849722U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107197062A (en) * | 2017-07-06 | 2017-09-22 | 上海大和衡器有限公司 | Determine the communication terminal and its electrode forming method of body data |
| CN109471568A (en) * | 2018-11-05 | 2019-03-15 | 深圳市鸿展光电有限公司 | A kind of production method of the full laser technology of GFF structure touch screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140924 |