CN203773521U - Ten-finger touch projection type capacitive screen - Google Patents
Ten-finger touch projection type capacitive screen Download PDFInfo
- Publication number
- CN203773521U CN203773521U CN201420066782.4U CN201420066782U CN203773521U CN 203773521 U CN203773521 U CN 203773521U CN 201420066782 U CN201420066782 U CN 201420066782U CN 203773521 U CN203773521 U CN 203773521U
- Authority
- CN
- China
- Prior art keywords
- indium oxide
- finger touch
- touch
- tin
- screen
- 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.)
- Expired - Lifetime
Links
- 239000011521 glass Substances 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 14
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 claims description 13
- GRPQBOKWXNIQMF-UHFFFAOYSA-N indium(3+) oxygen(2-) tin(4+) Chemical compound [Sn+4].[O-2].[In+3] GRPQBOKWXNIQMF-UHFFFAOYSA-N 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
Abstract
The utility model discloses a ten-finger touch projection type capacitive screen which comprises a screen body and is characterized in that double-side indium tin oxid glass with a thickness of 1.1 mm is arranged in the screen body, and an indium tin oxid pattern with a length of 7 mm is arranged on the double-side indium tin oxid glass. According to the ten-finger touch projection type capacitive screen, multi-point touch control can be realized, requirements of the market for large-size capacitive touch screens can be met, and the qualified rate can reach over 80%.
Description
[technical field]
The utility model relates to a kind of capacitance plate, relates in particular to a kind of ten finger touch-control projecting type capacitor screens.
[background technology]
Original projecting type capacitor screen is because size is less, the X being etched respectively by two-layer tin indium oxide, Y-axis channel impedance is less, along with the increase of product size, X under 270 ohm of same sheet resistance tin indium oxide materials, Y-axis channel impedance is also along with increase, and in the time that channel impedance exceedes 30K ohm scope that common touch-control chip supports, larger sized touch-control can not be realized.In addition, the principle of work based on projecting type capacitor screen requires etching and the specific pattern of printing and circuit, and the more complicated circuit of the larger pattern of size is more intensive, and the short circuit of generation, the chance of open circuit also increase suddenly.Circuit pattern, the cabling mode of small-medium size projecting type capacitor screen are all comparatively simple, and making technology is also relatively simple, and therefore the straight-through yield of product is higher, common more than 80%, but in the time that product size increases to 21 cun below yield rapid drawdown to 50%.Moreover production equipment is another key factor, at present the capacitance plate production equipment in industry generally can only production small-medium size product, because the limitations such as board size, stroke are helpless to production large scale product.What original technology adopted is the indium tin oxide films of 270 ohm of sheet resistance 0.125MM, or the two-sided indium oxide tin glass of 1.8MM, manufacture capacitance plate functional module with the tin indium oxide pattern of 5-6MM again, cause channel impedance excessive (270 ohm of sheet resistances) and because of upper and lower tin indium oxide interlamellar spacing too (1.8MM) far away make to drive that signal attenuation is large, tin indium oxide pattern is relatively little makes to drive signal strong (the larger driving signal of pattern dimension is stronger) not, to such an extent as to cannot have the signal of sufficient intensity to realize 10 finger touch-controls; Therefore, how to address the above problem and become problem demanding prompt solution.
[utility model content]
The utility model is for addressing the above problem the ten finger touch-control projecting type capacitors screens that a kind of energy multi-point touch are provided, met the features such as the demand of market to large scale electric capacity screen.
The technical scheme that the utility model addresses the above problem is: the one ten finger touch-control projecting type capacitor screens that the utility model is related, comprise screen body, and it is characterized in that: in described screen body, there is two-sided indium oxide tin glass,
Its thickness is 1.1 millimeters, and described two-sided indium oxide tin glass is provided with tin indium oxide pattern, and tin indium oxide pattern is 7 millimeters.
Above-mentioned a kind of ten finger touch-control projecting type capacitor screens, is characterized in that, the pros and cons sheet resistance of described two-sided indium oxide tin glass is respectively 80-120 ohm, 150-250 ohm.
Above-mentioned a kind of ten finger touch-control projecting type capacitor screens, is characterized in that, the chip in described capacitance plate adopts Silicon Integration Systems Corp.'s science and technology touch-control chip.
The beneficial effects of the utility model are: 1, fill up the domestic blank at large scale projecting type capacitor screen field ten finger touch-controls; 2 have met the demand of market to large size capacitive touch screen; 3, can realize the more touch-control of multiple spot.
[brief description of the drawings]
Fig. 1 is the structural representation of the two-sided indium oxide tin glass of the utility model.
[embodiment]
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.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.
The one ten finger touch-control projecting type capacitor screens that the utility model is related, comprise screen body, it is characterized in that: in described screen body, have two-sided indium oxide tin glass 1, its thickness is 1.1 millimeters, control upper and lower tin indium oxide interlamellar spacing, reduce the decay that drives signal, described two-sided indium oxide tin glass 1 is provided with tin indium oxide pattern, and tin indium oxide pattern is 7 millimeters.
The pros and cons sheet resistance of described two-sided indium oxide tin glass 1 is respectively 80-120 ohm, 150-250 ohm, reduces channel impedance, makes signal stronger.
Chip in capacitance plate adopts Silicon Integration Systems Corp.'s science and technology touch-control chip.
The utility model is in the time of concrete practicality, owing to having adopted the two-sided indium oxide tin glass material of specific 1.1MM, and special sheet resistance collocation, make X, Y channel impedance can be within 30K ohm, then coordinate with the tin indium oxide pattern of 7MM left and right and strengthen and transmit, and finally arranges in pairs or groups with the touch-control chip SIS9251 of Silicon Integration Systems Corp.'s science and technology, so just, can support 10 fingers touch-control simultaneously, ensure that the feature of the touch-control of multiple spot has met the demand to large size capacitive touch screen on market simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a finger touch-control projecting type capacitor screen, comprises screen body, it is characterized in that: in described screen body, have two-sided indium oxide tin glass, its thickness is 1.1 millimeters, and described two-sided indium oxide tin glass is provided with tin indium oxide pattern, and tin indium oxide pattern is 7 millimeters.
2. a kind of ten finger touch-control projecting type capacitors shield according to claim 1, it is characterized in that, the pros and cons sheet resistance of described two-sided indium oxide tin glass is respectively 80-120 ohm, 150-250 ohm.
3. a kind of ten finger touch-control projecting type capacitors shield according to claim 1, it is characterized in that, the chip in described capacitance plate adopts Silicon Integration Systems Corp.'s science and technology touch-control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066782.4U CN203773521U (en) | 2014-02-17 | 2014-02-17 | Ten-finger touch projection type capacitive screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066782.4U CN203773521U (en) | 2014-02-17 | 2014-02-17 | Ten-finger touch projection type capacitive screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773521U true CN203773521U (en) | 2014-08-13 |
Family
ID=51290685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420066782.4U Expired - Lifetime CN203773521U (en) | 2014-02-17 | 2014-02-17 | Ten-finger touch projection type capacitive screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111149230A (en) * | 2017-08-04 | 2020-05-12 | 维特罗平板玻璃有限责任公司 | Flash annealing of transparent conductive oxide and semiconductor coatings |
-
2014
- 2014-02-17 CN CN201420066782.4U patent/CN203773521U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111149230A (en) * | 2017-08-04 | 2020-05-12 | 维特罗平板玻璃有限责任公司 | Flash annealing of transparent conductive oxide and semiconductor coatings |
| CN111149230B (en) * | 2017-08-04 | 2023-09-19 | 维特罗平板玻璃有限责任公司 | Flash annealing of transparent conductive oxides and semiconductive coatings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |