CN202887142U - Infrared touch device and display equipment - Google Patents
Infrared touch device and display equipment Download PDFInfo
- Publication number
- CN202887142U CN202887142U CN 201220264643 CN201220264643U CN202887142U CN 202887142 U CN202887142 U CN 202887142U CN 201220264643 CN201220264643 CN 201220264643 CN 201220264643 U CN201220264643 U CN 201220264643U CN 202887142 U CN202887142 U CN 202887142U
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- infrared
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- touching device
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Abstract
The utility model discloses an infrared touch device which comprises a touch screen frame and a plurality of reflecting optoelectronic switches. The reflecting optoelectronic switches are arranged on two adjacent rims of the touch screen frame. Due to the fact that the plurality of reflecting optoelectronic switches only needs to be arranged on the two adjacent rims of the touch screen frame, compared with the technical scheme in the prior art that a plurality of infrared transmitting tubes and a plurality of infrared receiving tubes need to be installed all around the touch screen frame of the infrared touch device, and the infrared transmitting tubes and the infrared receiving tubes are perpendicular to each other, and form an infrared transmitting receiving array, use of components is reduced, and the infrared touch device has the advantage of reducing cost. Due to the facts that the reflecting optoelectronic switches are used for replacing the infrared transmitting tubes and the infrared receiving tubes, and compared with the infrared transmitting tubes and the infrared receiving tubes, the reflecting optoelectronic switches have the advantages of being rapid in response speed and good in capacity of resisting disturbance, and sensitivity and the capacity of resisting disturbance of the infrared touch device are improved.
Description
Technical field
The utility model relates to electronic technology field, particularly a kind of infrared touching device and display device.
Background technology
Infrared touch panel is simple in structure because of it, be not subjected to electric current, voltage and electrostatic interference, and suits to work under some rugged environment condition, has the advantages such as stability is high, resolution is high, easy for installation and used more and more extensively.
Infrared touching device of the prior art is for installing some infrared transmitting tubes and infrared receiving tube around the touch-screen framework, be arranged with respectively infrared transmitting tube and infrared receiving tube that quantity equates on two relative edge's frames of touch-screen framework, some infrared transmitting tubes and infrared receiving tube form orthogonal infrared emission and receiving array, by judging whether the infrared beam between infrared transmitting tube and the infrared receiving tube is blocked, thereby judge whether to occur touch event.
Because above-mentioned infrared touching device need to use a large amount of infrared transmitting tubes and infrared receiving tube, along with the increase of size, its production cost is more and more higher.
The utility model content
Fundamental purpose of the present utility model provides a kind of infrared touching device, is intended to reduce cost, improves sensitivity and antijamming capability.
The utility model embodiment provides a kind of infrared touching device, comprises the touch-screen framework, also comprises some reflective photoelectric switches, and described some reflective photoelectric switches are arranged on the two adjacent edge frames of described touch-screen framework.
Preferably, described infrared touching device comprises that also described microprocessor is S3C6410, LPC2138 or C8051 be used to the microprocessor of controlling described some reflective photoelectric switch luminances and acquisition touch coordinate data.
Preferably, described infrared touching device also comprises the communication interface that is connected with external unit, and described communication interface is RS232, RS485, any among SPI and the USB.
Preferably, the frame of described touch-screen framework is light tight material.
The utility model also provides a kind of display device, comprises infrared touching device, and described infrared touching device comprises touch-screen framework and some reflective photoelectric switches, and described some reflective photoelectric switches are arranged on the two adjacent edge frames of described touch-screen framework.
The utility model only needs at two adjacent edge frames of touch-screen framework some reflective photoelectric switches to be installed, infrared touching device relatively of the prior art need to all be installed some infrared transmitting tubes and infrared receiving tube and make it to form the technical scheme of orthogonal infrared emission and receiving array around the touch-screen framework, reduce the use of components and parts, had the advantage that reduces cost.The utility model replaces infrared transmitting tube and infrared receiving tube with reflective photoelectric switch simultaneously, because the relative infrared transmitting tube of reflective photoelectric switch and infrared receiving tube have fast response time and the strong advantage of antijamming capability, so improved sensitivity and the antijamming capability of the utility model infrared touching device.
Description of drawings
Fig. 1 is the view of the utility model infrared touching device when touch-screen is not touched;
Fig. 2 is the view of the utility model infrared touching device when touch-screen is touched.
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model provides a kind of infrared touching device, and with reference to Fig. 1, Fig. 1 is the view of the utility model infrared touching device when touch-screen is not touched.The utility model infrared touching device comprises touch-screen framework 1 and some reflective photoelectric switches 2, and some reflective photoelectric switches 2 are arranged on the two adjacent edge frames of touch-screen framework 1.
The utility model only needs at two adjacent edge frames of touch-screen framework 1 some reflective photoelectric switches 2 to be installed, infrared touching device relatively of the prior art need to all be installed some infrared transmitting tubes and infrared receiving tube and make it to form the technical scheme of orthogonal infrared emission and receiving array around the touch-screen framework, reduce the use of components and parts, had the advantage that reduces cost.The utility model replaces infrared transmitting tube and infrared receiving tube with reflective photoelectric switch 2 simultaneously, because reflective photoelectric switch 2 relative infrared transmitting tubes and infrared receiving tube have fast response time and the strong advantage of antijamming capability, so improved sensitivity and the antijamming capability of the utility model infrared touching device.
In the utility model embodiment, the frame of touch-screen framework 1 is light tight material.Certainly in other embodiments, the frame of touch-screen framework 1 is not limited to light tight material, and it can be light-transmitting materials, and only need are pasted the lighttight material of one deck at the frame of the touch-screen framework 1 of light-transmitting materials.
The utility model infrared touching device also comprises microprocessor, and microprocessor is used for controlling the luminance of some reflective photoelectric switches 2 and obtains touch coordinate data.Microprocessor among the utility model embodiment is S3C6410, LPC2138 or C8051 etc.Certainly in the utility model infrared touching device, also microprocessor can be set, but this microprocessor is arranged in the external unit that uses the utility model infrared touching device.
Microprocessor is lighted reflective photoelectric switch 2 one by one along X-axis and Y direction, and guarantees only having on the synchronization X-direction that a reflective photoelectric switch 2 is lit, only having a reflective photoelectric switch 2 to be lit on the Y direction.The transmitting terminal of the reflective photoelectric switch 2 after being lit is luminous, the irreflexive light intensity of the frame by touch-screen framework 1 that receives when the light intensity that the receiving end of reflective photoelectric switch 2 relatively receives in real time and original state, when its light intensity difference during greater than preset value, judging has the touch behavior to occur, and microprocessor further calculates the coordinate figure of touch point.If touch-screen is not touched, then the light that sends of the transmitting terminal of reflective photoelectric switch 2 is received by the receiving end of reflective photoelectric switch 2 after the diffuse reflection of the frame of touch-screen framework 1; With reference to Fig. 2, Fig. 2 is the view of the utility model infrared touching device when touch-screen is touched, if the coordinate points (x1 of touch-screen, y1) be touched, then the light that sends of the transmitting terminal of reflective photoelectric switch 2 is blocked in coordinate points (x1, y1) locate, this light is at coordinate points (x1, y1) locate to be reflected back to the receiving end of reflective photoelectric switch 2, this moment reflective photoelectric switch 2 the light intensity that receives of the receiving end light intensity of getting back to the receiving end of reflective photoelectric switch 2 greater than light through the frame of touch-screen framework 1 by diffuse reflection.
The utility model infrared touching device also comprises the communication interface that is connected with external unit, and the touch point coordinate figure that communication interface is used for microprocessor is obtained is transferred to external unit.Communication interface among the utility model embodiment can be RS232, RS485, any among SPI and the USB.Certainly in the utility model infrared touching device, also communication interface can be set, but this communication interface is arranged in the external unit that uses the utility model infrared touching device.
The utility model infrared touching device can be used to televisor, panel computer, ATM, electronic whiteboard and jukebox etc., and all need on the equipment of touching device.
The invention also discloses a kind of display device, this display device comprises the infrared touching device in above-described embodiment, no longer infrared touching device is given unnecessary details at this.Because the utility model display device comprises infrared touching device in above-described embodiment, so it is not only to the fast response time of touch operation, and has antijamming capability and reach by force the low advantage of cost.
The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. an infrared touching device comprises the touch-screen framework, it is characterized in that, also comprises some reflective photoelectric switches, and described some reflective photoelectric switches are arranged on the two adjacent edge frames of described touch-screen framework.
2. infrared touching device according to claim 1 is characterized in that, comprises that also described microprocessor is S3C6410, LPC2138 or C8051 be used to the microprocessor of controlling described some reflective photoelectric switch luminances and acquisition touch coordinate data.
3. infrared touching device according to claim 2 is characterized in that, also comprises the communication interface that is connected with external unit, and described communication interface is RS232, RS485, any among SPI and the USB.
4. each described infrared touching device in 3 according to claim 1 is characterized in that the frame of described touch-screen framework is light tight material.
5. a display device is characterized in that, comprises each described infrared touching device in the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264643 CN202887142U (en) | 2012-06-06 | 2012-06-06 | Infrared touch device and display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264643 CN202887142U (en) | 2012-06-06 | 2012-06-06 | Infrared touch device and display equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887142U true CN202887142U (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220264643 Expired - Lifetime CN202887142U (en) | 2012-06-06 | 2012-06-06 | Infrared touch device and display equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202887142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094464A (en) * | 2015-08-05 | 2015-11-25 | 深圳市华星光电技术有限公司 | Infrared touch control device |
-
2012
- 2012-06-06 CN CN 201220264643 patent/CN202887142U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094464A (en) * | 2015-08-05 | 2015-11-25 | 深圳市华星光电技术有限公司 | Infrared touch control device |
| WO2017020343A1 (en) * | 2015-08-05 | 2017-02-09 | 深圳市华星光电技术有限公司 | Infrared touch device |
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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: 20130417 |