CN202257520U - Infrared touch screen - Google Patents
Infrared touch screen Download PDFInfo
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- CN202257520U CN202257520U CN2011203409229U CN201120340922U CN202257520U CN 202257520 U CN202257520 U CN 202257520U CN 2011203409229 U CN2011203409229 U CN 2011203409229U CN 201120340922 U CN201120340922 U CN 201120340922U CN 202257520 U CN202257520 U CN 202257520U
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- infrared
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- touch pad
- reflection device
- touch
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Abstract
An infrared touch screen relates to the field of touch screens and comprises an infrared emission array and an infrared receiving array, as well as an accessory circuit, a transparent touch plate and an optical device group, wherein the infrared emission array and the infrared receiving array are arranged on the side edge of a touch area and below one side of the touch plate; elements of at least one array of the infrared emission array and the infrared receiving array face upwards, and elements of the other array face to one side opposite to the touch plate; and the optical device group comprises at least three rows of reflector devices playing reflective roles. Through the design, one group of infrared emission array and one group of infrared receiving array can be correspondingly arranged at one side of the touch plate, so that the structure can be simplified, the cost can be lowered and the maintenance is convenient.
Description
Technical field
The utility model relates to the touch-screen field, relates in particular to the infrared touch panel field.
Background technology
Infrared touch panel is as a branch of touch-screen, advantage such as, high reliability easy for installation, non-maintaining with it and be widely used in every field gradually.
Existing infrared touch comprises infrared receiving array that is positioned at touch-screen one side and the infrared emission array that is positioned at relative one side.Therefore two circuit boards need be installed at least, even four circuit boards will be installed, exist install complicated, cost is high, safeguard problem such as inconvenience.
The utility model content
The purpose of the utility model is to provide a kind of infrared touch panel, to solve the problems of the technologies described above.
The technical matters that the utility model solved can adopt following technical scheme to realize:
Infrared touch panel; Comprise the infrared emission array and the infrared receiving array that are arranged on the touch area side, and accessory circuit, it is characterized in that; Also comprise a transparent touch pad, said touch pad one side-lower is provided with said infrared emission array and said infrared receiving array;
The element of at least one array is towards the top in said infrared emission array and the said infrared receiving array, and the element of another array is towards the relative side of said touch pad;
Also comprise an optical device group, said optical device group comprises that at least three queue the reflection device of reflection action, i.e. first reflection device, second reflection device, the 3rd reflection device;
Said first reflection device is positioned at the top that the above infrared emission array of said touch pad and said infrared receiving array belong to a side;
Said second reflection device is positioned at the top of a relative side on the said touch pad;
Said the 3rd ballistic device is positioned at the below of a relative side on the said touch pad;
Said first reflection device, second reflection device, the 3rd reflection device constitute from said infrared receiving array the light path to said infrared emission array.
Through above-mentioned design, realize purpose that one group of corresponding said infrared emission array and said infrared receiving array are arranged on said touch pad one side, thereby simplified structure, reduce cost, be convenient to safeguard.
Also comprise a circuit board, said infrared emission array and said infrared receiving array are positioned at said circuit board one side.
Also comprise a circuit board, said infrared emission array and said infrared receiving array are positioned at said circuit board both sides.
The transmitting terminal of the said infrared emission component in the said infrared emission array is towards the top of said touch pad; The receiving end of the said infrared receiver component in the said infrared receiving array is towards the relative side of said touch pad.
The receiving end of the said infrared receiver component in the said infrared receiving array is towards the top of said touch pad; The transmitting terminal that element is received in said red emission in the said infrared emission array is towards the relative side of said touch pad.
Also comprise a touch pad framework, said touch pad is embedded in the said touch pad framework.Said touch pad is embedded in the said touch pad framework, carries out the waterproof setting between touch pad and the touch pad framework easily, and next the utility model of prerequisite of waterproof can be realized waterproof between touch pad and touch pad framework.
Scribble the waterproof sealing glue-line between said touch pad and the said touch pad framework, tight to guarantee sealing, dustproof, waterproof.
Said reflection device adopts triangular prism, and the vertical edge of first reflection device and second reflection device is oppositely arranged.Vertical edge is exposed to the outside, is not easy to deposit dust, and appearance looks elegant.
The square reflecting prism that said reflection device adopts tangent plane to be square; Be provided with a reflecting surface in the said square reflecting prism, said reflecting surface is respectively an incidence surface, an exiting surface towards two sides of square reflecting prism.
The said exiting surface of said first reflection device and the incidence surface of said second reflection device are oppositely arranged.
Reflecting surface in the said square reflecting prism is a reflectance coating.
Said square reflecting prism is made up of two different printing opacity modules of refractive index, is said reflecting surface with the junction of two said printing opacity modules.
Said touch pad has only a side to be provided with said infrared emission array and said infrared receiving array, and other limits no longer are provided with.An one group of corresponding infrared emission array and an infrared receiving array through software processes, can be realized the identification of accurate touch point.This design can be simplified hardware configuration, and reduces cost.
Angle between said reflecting surface and said touch pad is arranged on more than 40 degree, so that allow infrared transmitting tube and infrared receiving tube to tilt to place.And, reduce throw light through infrared transmitting tube and infrared receiving tube setting, strengthen reflection ray, even create total reflection condition.
Said reflection device can adopt the reflection device of a strip, at least five said infrared emission component shared one said ballistic devices in the said infrared emission array.
Said reflection device can adopt the reflection device of a strip, at least five said infrared receiver component shared one said receiving devices in the said infrared receiving array.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is the another kind of structural representation of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, Fig. 2; Infrared touch panel comprises the infrared emission array 1 and infrared receiving array 2 that are arranged on the touch area side, and accessory circuit; Also comprise a transparent touch pad 3, touch pad 3 one side-lowers are provided with infrared emission array 1 and infrared receiving array 2.The element of at least one array is towards the top in infrared emission array 1 and the infrared receiving array 2, and the element of another array is towards the relative side of touch pad.Also comprise an optical device group, the optical device group comprises that at least three queue the reflection device of reflection action, i.e. first reflection device 31, second reflection device 32, the 3rd reflection device 33.First reflection device 31 is positioned at the top of infrared emission array on the touch pad 31 and infrared receiving array 2 places one side; Second reflection device 32 is positioned at the top of a relative side on the touch pad 3; The 3rd ballistic device 33 is positioned at the below of a relative side on the touch pad 3; First reflection device 31, second reflection device 32, the 3rd reflection device 33 constitute from infrared receiving array 2 light path to infrared emission array 1.Through above-mentioned design, realize one group of corresponding infrared emission array 1 and infrared receiving array 2 are arranged on the purpose of touch pad one side, thereby simplified structure, reduce cost, be convenient to safeguard.
Fig. 1, two kinds of schemes of Fig. 2 can be arranged in the practical implementation.With reference to Fig. 1, comprise a circuit board 4, infrared emission array 1 is positioned at circuit board 4 one sides with infrared receiving array 2.With reference to Fig. 2, also comprise a circuit board 4, infrared emission array 1 is positioned at circuit board 4 both sides with infrared receiving array 2.
With reference to Fig. 1, Fig. 2, the transmitting terminal of the infrared emission component in the infrared emission array 1 is towards the top of touch pad 3; The receiving end of the infrared receiver component in the infrared receiving array 2 is towards touch pad 3 relative sides.Perhaps also can, the receiving end of the infrared receiver component in the infrared receiving array is towards the top of touch pad; The transmitting terminal that element is received in red emission in the infrared emission array is towards the relative side of touch pad.
Also comprise a touch pad framework, touch pad 3 is embedded in the touch pad framework.Carry out the waterproof setting between touch pad 3 and the touch pad framework easily; Next the utility model of prerequisite of waterproof can be realized waterproof between touch pad 3 and touch pad framework; Therefore, touch pad 3 is embedded in the touch pad framework, scribbles the waterproof sealing glue-line between touch pad 3 and the touch pad framework; Tight to guarantee sealing, dustproof, waterproof.
Reflection device can adopt triangular prism, and the vertical edge of first reflection device and second reflection device is oppositely arranged, and vertical edge is exposed to the outside, is not easy to deposit dust, and appearance looks elegant.Perhaps, reflection device adopts the square reflecting prism that tangent plane is square; Be provided with a reflecting surface in the square reflecting prism, reflecting surface is respectively an incidence surface, an exiting surface towards two sides of square reflecting prism.The incidence surface of the exiting surface of first reflection device 31 and second reflection device 32 is oppositely arranged.Reflecting surface in the square reflecting prism is a reflectance coating.Square reflecting prism is made up of two different printing opacity modules of refractive index, is reflecting surface with the junction of two printing opacity modules.
Angle between reflecting surface and touch pad is arranged on more than 40 degree, so that allow infrared transmitting tube and infrared receiving tube to tilt to place.And, reduce throw light through infrared transmitting tube and infrared receiving tube setting, strengthen reflection ray, even create total reflection condition.
Reflection device can adopt the reflection device of a strip, at least five shared ballistic devices of infrared emission component in the infrared emission array.Reflection device can adopt the reflection device of a strip, at least five shared receiving devices of infrared receiver component in the infrared receiving array.
More than show and described ultimate principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (10)
1. infrared touch panel; Comprise the infrared emission array and the infrared receiving array that are arranged on the touch area side, and accessory circuit, it is characterized in that; Also comprise a transparent touch pad, said touch pad one side-lower is provided with said infrared emission array and said infrared receiving array;
The element of at least one array is towards the top in said infrared emission array and the said infrared receiving array, and the element of another array is towards the relative side of said touch pad;
Also comprise an optical device group, said optical device group comprises that at least three queue the reflection device of reflection action, i.e. first reflection device, second reflection device, the 3rd reflection device;
Said first reflection device is positioned at the top that the above infrared emission array of said touch pad and said infrared receiving array belong to a side;
Said second reflection device is positioned at the top of a relative side on the said touch pad;
Said the 3rd ballistic device is positioned at the below of a relative side on the said touch pad;
Said first reflection device, second reflection device, the 3rd reflection device constitute from said infrared receiving array the light path to said infrared emission array.
2. infrared touch panel according to claim 1 is characterized in that, also comprises a circuit board, and said infrared emission array and said infrared receiving array are positioned at said circuit board one side.
3. infrared touch panel according to claim 1 is characterized in that, also comprises a circuit board, and said infrared emission array and said infrared receiving array are positioned at said circuit board both sides.
4. infrared touch panel according to claim 1 is characterized in that, the transmitting terminal of the said infrared emission component in the said infrared emission array is towards the top of said touch pad; The receiving end of the said infrared receiver component in the said infrared receiving array is towards the relative side of said touch pad.
5. infrared touch panel according to claim 1 is characterized in that, the receiving end of the said infrared receiver component in the said infrared receiving array is towards the top of said touch pad; The transmitting terminal that element is received in said red emission in the said infrared emission array is towards the relative side of said touch pad.
6. according to claim 1,2,3,4 or 5 described infrared touch panels, it is characterized in that, also comprise a touch pad framework, said touch pad is embedded in the said touch pad framework;
Scribble the waterproof sealing glue-line between said touch pad and the said touch pad framework.
7. according to the infrared touch panel of claim 6, it is characterized in that said reflection device adopts triangular prism, the vertical edge of first reflection device and second reflection device is oppositely arranged.
8. according to the infrared touch panel of claim 6, it is characterized in that the square reflecting prism that said reflection device adopts tangent plane to be square; Be provided with a reflecting surface in the said square reflecting prism, said reflecting surface is respectively an incidence surface, an exiting surface towards two sides of square reflecting prism;
The said exiting surface of said first reflection device and the incidence surface of said second reflection device are oppositely arranged;
Reflecting surface in the said square reflecting prism is a reflectance coating;
Said square reflecting prism is made up of two different printing opacity modules of refractive index, is said reflecting surface with the junction of two said printing opacity modules.
9. according to Claim 8 infrared touch panel is characterized in that said reflection device adopts the reflection device of a strip, at least five said infrared receiver component shared one said receiving devices in the said infrared receiving array; At least five said infrared emission component shared one said ballistic devices in the said infrared emission array.
10. infrared touch panel according to claim 8 is characterized in that, the angle between said reflecting surface and said touch pad is arranged on more than 40 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203409229U CN202257520U (en) | 2011-09-13 | 2011-09-13 | Infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203409229U CN202257520U (en) | 2011-09-13 | 2011-09-13 | Infrared touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202257520U true CN202257520U (en) | 2012-05-30 |
Family
ID=46118731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203409229U Expired - Fee Related CN202257520U (en) | 2011-09-13 | 2011-09-13 | Infrared touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202257520U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750049A (en) * | 2012-07-03 | 2012-10-24 | 深圳市天时通科技有限公司 | Infrared touch screen employing lens |
| WO2016029574A1 (en) * | 2014-08-28 | 2016-03-03 | 京东方科技集团股份有限公司 | Touch screen and positioning method thereof, and touch display apparatus |
-
2011
- 2011-09-13 CN CN2011203409229U patent/CN202257520U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750049A (en) * | 2012-07-03 | 2012-10-24 | 深圳市天时通科技有限公司 | Infrared touch screen employing lens |
| WO2014005368A1 (en) * | 2012-07-03 | 2014-01-09 | 深圳市天时通科技有限公司 | Infrared touch screen employing light distribution lens |
| CN102750049B (en) * | 2012-07-03 | 2015-05-06 | 深圳市天时通科技有限公司 | Infrared touch screen employing lens |
| WO2016029574A1 (en) * | 2014-08-28 | 2016-03-03 | 京东方科技集团股份有限公司 | Touch screen and positioning method thereof, and touch display apparatus |
| US9841845B2 (en) | 2014-08-28 | 2017-12-12 | Boe Technology Group Co., Ltd. | Touch screen, positioning method thereof and touch display device |
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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 |
Granted publication date: 20120530 Termination date: 20200913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |