CN102750048A - Infrared touch screen - Google Patents
Infrared touch screen Download PDFInfo
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- CN102750048A CN102750048A CN2012102100128A CN201210210012A CN102750048A CN 102750048 A CN102750048 A CN 102750048A CN 2012102100128 A CN2012102100128 A CN 2012102100128A CN 201210210012 A CN201210210012 A CN 201210210012A CN 102750048 A CN102750048 A CN 102750048A
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Abstract
The invention relates to an infrared touch screen. Infrared transmitting arrays are positioned on two adjacent sides of the edge of a touch zone; infrared receiving arrays are positioned on another adjacent sides of the edge of the touch zone; the infrared transmitting arrays and the infrared receiving arrays which are positioned on two opposite sides of the edge of the touch zone are opposite to each other; infrared transmitting tubes of the infrared transmitting arrays transmit infrared light to the corresponding infrared receiving tubes in the opposite direction; the infrared light is parallel; meanwhile, the infrared transmitting tubes of the infrared transmitting arrays also transmit inclined infrared light; and the infrared light is parallel. According to the infrared touch screen disclosed by the invention, the infrared transmitting arrays can be used for transmitting forward infrared light and inclined infrared light; due to the utilization of multiple regular infrared light, the technical problem of multipoint recognition is solved; and the infrared touch screen has the advantages of simple structure, low cost and favorable use effect.
Description
Technical field
The present invention relates to a kind of infrared touch panel, relate in particular to a kind of infrared touch panel of launching forward and oblique infrared light.
Background technology
Along with the development of technology, infrared touch panel more and more is widely used.Though prior art has also solved the multiple spot identification problem gradually; But the identification of the multiple spot of prior art mainly strengthens the judgement of infrared touch panel to a plurality of touch points based on the complex judging circuit; The common thin and delicate complicacy of these structures; Need to change the structure of existing infrared touch panel and the composition of system, increase more cost virtually.
Summary of the invention
The technical matters that the present invention solves is: make up a kind of infrared touch panel, overcoming the prior art infrared touch panel can not be with the technical matters of simple structure and the identification of implemented with low cost multiple spot.
Technical scheme of the present invention is: make up a kind of infrared touch panel; Comprise touch pad, infrared emission unit, infrared receiver; Said touch pad comprises Petting Area; Said infrared emission unit comprises the infrared receiving array that receives infrared light, and the said infrared emission unit of said infrared receiving array comprises the infrared emission array of launching infrared light, and said infrared emission array is positioned on the adjacent both sides, said Petting Area edge; Said infrared receiving array is positioned on the adjacent other both sides, said Petting Area edge; On the said Petting Area edge relatively the above infrared emission array of both sides and said infrared receiving array over against, the infrared transmitting tube of said infrared emission array to over against the corresponding infrared receiving tube emission infrared light of direction, said IR is parallel; Simultaneously, the infrared transmitting tube of said infrared emission array is also launched oblique infrared light, and said IR is parallel.
Further technical scheme of the present invention is: said infrared emission array comprises at least two overlapping arrangements of row infrared transmitting tube in a row; Said infrared receiving array comprises arranges infrared receiving tube in a row; One row's infrared transmitting tube is to launching infrared light over against the corresponding infrared receiving tube of direction, and said IR is parallel; The oblique infrared light of another row's infrared transmitting tube emission, said IR is parallel.
Further technical scheme of the present invention is: said infrared emission array comprises many group infrared transmitting tubes; The infrared transmitting tube of said infrared emission array is a row, and every group of infrared transmitting tube comprises the infrared transmitting tube of emission forward IR and the infrared transmitting tube of the oblique IR of emission.
Further technical scheme of the present invention is: the every row's infrared receiving tube over against direction is identical with every row's infrared transmitting tube quantity.
Further technical scheme of the present invention is: said infrared receiving array is two row's infrared receiving tubes.
Further technical scheme of the present invention is: said infrared diode is flat, and the width of said infrared diode is greater than its thickness, and said infrared transmitting tube is arranged along thickness direction.
Further technical scheme of the present invention is: if two groups of every row's infrared transmitting tube and infrared receiving tube quantity over against direction all equate; Then launch the infrared transmitting tube of oblique infrared light and launch infrared light by near-end to the infrared receiving tube of far-end successively to adjacent edge, the infrared transmitting tube of the adjacent both sides with this of the IR far-end of each infrared transmitting tube emission is parallel with the diagonal line that infrared receiving tube forms.
Further technical scheme of the present invention is: if two groups of every row's infrared transmitting tube and infrared receiving tube quantity over against direction are unequal; Successively by the infrared receiving tube emission infrared light of near-end to far-end, the residue infrared receiving tube receives the infrared light parallel with said IR of opposite side infrared transmitting tube emission to the infrared transmitting tube of the oblique infrared light of emission of negligible amounts successively to adjacent edge.
Technique effect of the present invention is: the present invention makes up a kind of infrared touch panel; Said infrared emission array is positioned on the adjacent both sides, said Petting Area edge; Said infrared receiving array is positioned on the adjacent other both sides, said Petting Area edge; On the said Petting Area edge relatively the above infrared emission array of both sides and said infrared receiving array over against, the infrared transmitting tube of said infrared emission array to over against the corresponding infrared receiving tube emission infrared light of direction, said IR is parallel; Simultaneously, the infrared transmitting tube of said infrared emission array is also launched oblique infrared light, and said IR is parallel.A kind of infrared touch panel of the present invention through said infrared emission array, had not only been launched the forward infrared light, but also launched oblique infrared light, through the IR of many rules, solved the technical matters of multiple spot identification, and was simple in structure, cost is low, and result of use is good.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of the preferred embodiment of the present invention.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further specified.
As shown in Figure 1; Embodiment of the present invention is: make up a kind of high precision infrared touch panel; Comprise touch pad 1, infrared emission unit 2, infrared receiver 3, said touch pad comprises Petting Area 11, and said infrared emission unit 2 comprises the infrared emission array 21 of launching infrared light; Said infrared receiver 3 comprises the infrared receiving array 31 that receives infrared light; Said infrared emission array 21 is positioned at adjacent both sides, said Petting Area 11 edges, and said infrared receiving array 31 is positioned at adjacent other both sides, said Petting Area edge, on said Petting Area 11 edges relatively the said infrared emission array 21 in both sides and said infrared receiving array 31 over against; The infrared transmitting tube 211 of said infrared emission array 21 is to launching infrared lights over against the corresponding infrared receiving tube 311 of direction, and said IR is parallel; Simultaneously, the infrared transmitting tube 211 of said infrared emission array 21 is also launched oblique infrared light, and said IR is parallel.
As shown in Figure 1; Practical implementation process of the present invention is following: the microprocessor controls interlock circuit is set in the touch-screen; When the scan mode of the microprocessor controls interlock circuit in the touch-screen according to existing red outer touch-screen, when driving m infrared transmitting tube 211 emission infrared rays, simultaneously or respectively the m infrared receiving tube 311 of gating Y axle frame is launched infrared rays; Wherein, 1 ≤m ≤M.When driving n power valve emission IR, 1 ≤n ≤N-M, the n infrared receiving tube 311 and the M+n infrared receiving tube 311 on the X axle of gating X axle frame receive the IR that said n infrared transmitting tube 211 is launched simultaneously or respectively; If N-M < n ≤N; The n infrared receiving tube and the m infrared receiving tube 311 on the Y axle of gating X axle frame receive the IR that said n infrared transmitting tube 211 is launched simultaneously or respectively; Wherein 1 ≤m ≤M. circulate so constantly; Such two infrared transmitting tubes 211 of each group and an infrared receiving tube are by gating successively or simultaneously, and the path that IR passes through is just in light grid of the surface of touch-screen formation, judgement touch point position when touch event takes place then.
Like Fig. 1, shown in Figure 2; Preferred implementation of the present invention is: said infrared emission array 21 comprises at least two overlapping arrangements of row infrared transmitting tube 211 in a row; Said infrared receiving array 31 comprises arranges infrared receiving tube 311 in a row; One row's infrared transmitting tube 211 is to launching infrared lights over against the corresponding infrared receiving tube 311 of direction, and said IR is parallel; The oblique infrared light of another row's infrared transmitting tube 211 emissions, said IR is parallel.In the specific embodiment, said infrared reception battle array 21 is classified two row's infrared receiving tubes 211 as.
As shown in Figure 1; Practical implementation process of the present invention is following: the adjacent both sides at Petting Area 11 edges are welded with two overlapping row's infrared transmitting tubes 211 respectively; The adjacent other both sides at Petting Area 11 edges are welded with infrared receiving tube 311 respectively; Infrared transmitting tube 211 on the Petting Area 11 edge relative edges and infrared receiving tube 311 respectively one by one over against; One row's infrared transmitting tube 211 is to its infrared receiving tube 311 emission IRs over against direction, and the infrared receiving tube 311 of another row's infrared transmitting tube 211 on its vergence direction launched IRs.In this embodiment, N respectively of the infrared transmitting tube 211 on the relative both sides of X-direction, the number of infrared receiving tube 311, M respectively of the infrared transmitting tube 211 on the relative both sides of Y direction, the number of infrared receiving tube 311, wherein N＞M.During specific to the corresponding relation of infrared transmitting tube 211 and infrared receiving tube 311; On the Y axle one row m infrared transmitting tube 211 with over against the Y axle on m infrared receiving tube 311 corresponding; Simultaneously, another row's m infrared transmitting tube 211 is corresponding with m m infrared receiving tube 311 on the X axle on the Y axle.On the X axle No. 1 infrared transmitting tube 211 of a row with over against the X axle on No. 1 infrared receiving tube 311 corresponding; Simultaneously; On the X axle the another row No. 1 infrared transmitting tube 211 with over against the X axle on M+1 infrared receiving tube 311 corresponding; And the like, on the X axle another row's N-M infrared transmitting tube 211 with over against the X axle on N infrared receiving tube 311 corresponding, another row's N-M+1 infrared transmitting tube 211 is corresponding with No. 1 infrared receiving tube 311 on the adjacent Y axle on the X axle; Another row's N infrared transmitting tube 211 is corresponding with M infrared receiving tube 311 on the adjacent Y axle on the X axle, and said IR is parallel.Identical with above-mentioned reason, if < M, then infrared transmitting tube 211 has similar corresponding relation with infrared receiving tube 311 to N.
Every row's infrared receiving tube 311 over against direction is identical with every row's infrared transmitting tube 211 quantity.Said infrared transmitting tube 211 is flat, and the width of said infrared transmitting tube 211 is greater than its thickness, and said infrared transmitting tube 211 is arranged along thickness direction.Infrared transmitting tube 211 is an infrared diode.
Like Fig. 1, shown in Figure 2; Preferred implementation of the present invention is: if two groups of every row's infrared transmitting tubes 211 over against direction all equate with infrared receiving tube 311 quantity; Then launch the infrared transmitting tube 211 of oblique infrared light and launch infrared lights by near-end to the infrared receiving tube 311 of far-end successively to adjacent edge, the infrared transmitting tube 211 of the adjacent both sides with this of the IR far-end of each infrared transmitting tube 211 emission is parallel with the diagonal line that infrared receiving tube 311 forms.
Like Fig. 1, shown in Figure 2; Preferred implementation of the present invention is: if two groups of every row's infrared transmitting tubes 211 over against direction are unequal with infrared receiving tube 311 quantity; Successively by the infrared receiving tube 311 emission infrared lights of near-end to far-end, residue infrared receiving tube 211 receives the infrared light parallel with said IR of opposite side infrared transmitting tube 311 emissions to the infrared transmitting tube 211 of the oblique infrared light of emission of negligible amounts successively to adjacent edge.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (8)
1. infrared touch panel; It is characterized in that; Comprise touch pad, infrared emission unit, infrared receiver, said touch pad comprises Petting Area, and said infrared emission unit comprises the infrared receiving array that receives infrared light; The said infrared emission unit of said infrared receiving array comprises the infrared emission array of launching infrared light; Said infrared emission array is positioned on the adjacent both sides, said Petting Area edge, and said infrared receiving array is positioned on the adjacent other both sides, said Petting Area edge, on the said Petting Area edge relatively the above infrared emission array of both sides and said infrared receiving array over against; The infrared transmitting tube of said infrared emission array is to launching infrared light over against the corresponding infrared receiving tube of direction, and said IR is parallel; Simultaneously, the infrared transmitting tube of said infrared emission array is also launched oblique infrared light, and said IR is parallel.
2. according to the said infrared touch panel of claim 1; It is characterized in that; Said infrared emission array comprises at least two overlapping arrangements of row infrared transmitting tube in a row; Said infrared receiving array comprises arranges infrared receiving tube in a row, and row's infrared transmitting tube is to launching infrared light over against the corresponding infrared receiving tube of direction, and said IR is parallel; The oblique infrared light of another row's infrared transmitting tube emission, said IR is parallel.
3. according to the said infrared touch panel of claim 1; It is characterized in that; Said infrared emission array comprises many group infrared transmitting tubes; The infrared transmitting tube of said infrared emission array is a row, and every group of infrared transmitting tube comprises the infrared transmitting tube of emission forward IR and the infrared transmitting tube of the oblique IR of emission.
4. according to the said infrared touch panel of claim 2, it is characterized in that, identical over against every row's infrared receiving tube of direction with every row's infrared transmitting tube quantity.
5. according to the said infrared touch panel of claim 2, it is characterized in that said infrared receiving array is two row's infrared receiving tubes.
6. according to the said infrared touch panel of claim 1, it is characterized in that said infrared diode is flat, the width of said infrared diode is greater than its thickness, and said infrared transmitting tube is arranged along thickness direction.
7. according to the said infrared touch panel of claim 4; It is characterized in that; If two groups of every row's infrared transmitting tube and infrared receiving tube quantity over against direction all equate; Then launch the infrared transmitting tube of oblique infrared light and launch infrared light by near-end to the infrared receiving tube of far-end successively to adjacent edge, the infrared transmitting tube of the adjacent both sides with this of the IR far-end of each infrared transmitting tube emission is parallel with the diagonal line that infrared receiving tube forms.
8. according to the said infrared touch panel of claim 4; It is characterized in that; If two groups of every row's infrared transmitting tube and infrared receiving tube quantity over against direction are unequal; Successively by the infrared receiving tube emission infrared light of near-end to far-end, the residue infrared receiving tube receives the infrared light parallel with said IR of opposite side infrared transmitting tube emission to the infrared transmitting tube of the oblique infrared light of emission of negligible amounts successively to adjacent edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102100128A CN102750048A (en) | 2012-06-25 | 2012-06-25 | Infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102100128A CN102750048A (en) | 2012-06-25 | 2012-06-25 | Infrared touch screen |
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| CN102750048A true CN102750048A (en) | 2012-10-24 |
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| CN2012102100128A Pending CN102750048A (en) | 2012-06-25 | 2012-06-25 | Infrared touch screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121501A1 (en) * | 2013-02-07 | 2014-08-14 | 深圳富创通科技有限公司 | Method for implementing infrared touch screen based on infrared optical sensor |
| CN106383617A (en) * | 2016-09-21 | 2017-02-08 | 广州华欣电子科技有限公司 | Touch frame and touch-control method |
| US9880668B2 (en) | 2013-09-11 | 2018-01-30 | Beijing Lenovo Software Ltd. | Method for identifying input information, apparatus for identifying input information and electronic device |
| CN108108068A (en) * | 2017-12-18 | 2018-06-01 | 嘉兴仁光乌镇科技有限公司 | The method for generating the infrared light curtain parallel to screen |
-
2012
- 2012-06-25 CN CN2012102100128A patent/CN102750048A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121501A1 (en) * | 2013-02-07 | 2014-08-14 | 深圳富创通科技有限公司 | Method for implementing infrared touch screen based on infrared optical sensor |
| US9880668B2 (en) | 2013-09-11 | 2018-01-30 | Beijing Lenovo Software Ltd. | Method for identifying input information, apparatus for identifying input information and electronic device |
| CN104423564B (en) * | 2013-09-11 | 2018-03-27 | 联想(北京)有限公司 | Input information identifying method, device and electronic equipment |
| CN106383617A (en) * | 2016-09-21 | 2017-02-08 | 广州华欣电子科技有限公司 | Touch frame and touch-control method |
| CN106383617B (en) * | 2016-09-21 | 2020-02-07 | 广州华欣电子科技有限公司 | Touch frame and touch method |
| CN108108068A (en) * | 2017-12-18 | 2018-06-01 | 嘉兴仁光乌镇科技有限公司 | The method for generating the infrared light curtain parallel to screen |
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Application publication date: 20121024 |