CN204229384U - A kind of infrared touch screen and display device - Google Patents
A kind of infrared touch screen and display device Download PDFInfo
- Publication number
- CN204229384U CN204229384U CN201420760347.1U CN201420760347U CN204229384U CN 204229384 U CN204229384 U CN 204229384U CN 201420760347 U CN201420760347 U CN 201420760347U CN 204229384 U CN204229384 U CN 204229384U
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- infrared
- remote receiver
- display device
- infrared remote
- transmitter
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Abstract
The utility model discloses a kind of infrared touch screen and display device, this infrared touch screen comprises display device, a pair infrared transmitter that arbitrary side of display device is arranged and the first infrared remote receiver; Wherein, infrared transmitter is launched in dispersion shape and is covered many infrared rays of display device light emission side, occurred in the infrared ray that the first infrared remote receiver detecting infrared transmitter is launched position of touch the infrared ray that reflects; Other sides except infrared transmitter is set also being included in display device are arranged and with infrared ray the second infrared remote receiver one to one, each bar infrared radiation that the position of each second infrared remote receiver on side and infrared transmitter are launched is identical to the position in respective side, the above-mentioned infrared touch screen that the utility model embodiment provides only adopts an infrared transmitter, not only resolution can be improved, realize accurate touch control operation, effectively can also reduce cost of manufacture, and be applicable to the display device of large-size.
Description
Technical field
The utility model relates to technical field of touch control, espespecially a kind of infrared touch screen and display device.
Background technology
At present, touch screen type can be divided into resistance-type, condenser type, acoustic wave, infrared-type and optical profile type etc. according to principle of induction, wherein infrared touch screen is owing to having not by electric current, voltage and electrostatic interference, and the advantage of suitable rugged environment condition, receives widespread use.
Existing infrared touch screen utilizes the infrared ray matrix that X, Y-direction are gathered to detect and the touch of consumer positioning, this infrared touch screen comprises display device, the infrared transmitter of arranging at the arbitrary neighborhood dual-side of display device and other the adjacent dual-sides arrangements except infrared transmitter is set with infrared transmitter infrared remote receiver one to one, form the infrared ray matrix anyhow intersected.User, when touch display part, points two red lines anyhow that will block through this generation position of touch, thus can judge the position of touch point at display device.
Because display device in existing infrared touch panel adopts four limit arrangement infrared transmitter and these ad hoc structures of infrared remote receiver, the corresponding infrared remote receiver of each infrared transmitter, reach higher resolution, the quantity of infrared transmitter and infrared remote receiver must be increased simultaneously, which increases the overall volume of infrared touch screen, therefore the volume of existing infrared touch screen is limited by the quantity of infrared transmitter and infrared remote receiver, thus limit the resolution of infrared touch screen, improve manufacturing cost and limit the application in the display device of large-size.
Therefore, how to adopt less infrared transmitter or infrared remote receiver, infrared touch screen can be made to improve resolution, and realizing accurate touch control operation, is the technical matters that those skilled in the art need solution badly.
Utility model content
In view of this, the utility model embodiment provides a kind of infrared touch screen and display device, adopts less infrared transmitter, improves resolution, realizes accurate touch control operation, effectively reduce cost of manufacture.
Therefore, the utility model embodiment provides a kind of infrared touch screen, comprising: display device, a pair infrared transmitter that arbitrary side of described display device is arranged and the first infrared remote receiver; Wherein, described infrared transmitter is launched in dispersion shape and is covered many infrared rays of described display device light emission side, described first infrared remote receiver detect in the infrared ray that described infrared transmitter launches occurred position of touch the infrared ray that reflects;
Also comprise: on other sides except described infrared transmitter is set of described display device arrange and with described infrared ray the second infrared remote receiver one to one, each bar infrared radiation that the position of each described second infrared remote receiver on side and described infrared transmitter are launched is identical to the position in respective side.
In a kind of possible implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, described infrared transmitter is positioned at the top of described first infrared remote receiver, and has setting spacing between described infrared transmitter and described first infrared remote receiver.
In a kind of possible implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, described infrared transmitter and described first infrared remote receiver are positioned at the center of arbitrary side of described display device simultaneously.
In a kind of possible implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, described infrared transmitter and described first infrared remote receiver are positioned at the base of described display device simultaneously.
In a kind of possible implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, many infrared rays that described infrared transmitter is launched are even in the surface distributed of described display device; Described second infrared remote receiver is uniformly distributed on other sides except arranging described infrared transmitter of described display device.
In a kind of possible implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, also comprise: for determining that described signal processing chip is connected with each described second infrared remote receiver with described first infrared remote receiver respectively at the signal processing chip of described display device light emission side generation position of touch coordinate.
In a kind of possible implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, described signal processing chip specifically comprises:
For receiving the signal receiving unit of the infrared signal of described first infrared remote receiver and each described second infrared remote receiver detecting;
For according to the second infrared remote receiver position not detecting infrared signal in each described second infrared remote receiver, determine first determining unit in the infrared ray path that touch-control occurs;
For the infrared signal that receives according to described first infrared remote receiver and the angle of described display device place plane and the distance between described first infrared remote receiver and described infrared transmitter, calculate second determining unit of touch point position to the distance of described first infrared remote receiver;
For according to the described touch point position that calculates to the distance of described first infrared remote receiver and the infrared ray path of described generation touch-control determined, determine the coordinate determining unit of described touch point position coordinates.
The utility model embodiment still provides a kind of display device, comprises the above-mentioned infrared touch screen that the utility model embodiment provides.
The beneficial effect of the utility model embodiment comprises:
The infrared touch screen of the one that the utility model embodiment provides and display device, this infrared touch screen comprises display device, a pair infrared transmitter that arbitrary side of display device is arranged and the first infrared remote receiver, wherein, infrared transmitter is launched in dispersion shape and is covered many infrared rays of display device light emission side, occurred in the infrared ray that the first infrared remote receiver detecting infrared transmitter is launched position of touch the infrared ray that reflects, other sides except infrared transmitter is set also being included in display device are arranged and with infrared ray the second infrared remote receiver one to one, each bar infrared radiation that the position of each second infrared remote receiver on side and infrared transmitter are launched is identical to the position in respective side, the above-mentioned infrared touch screen that the utility model embodiment provides only adopts one can launch in dispersion shape and covers many ultrared infrared transmitters of display device light emission side, not only resolution can be improved, realize accurate touch control operation, effectively can also reduce cost of manufacture, and be applicable to the display device of large-size.
Accompanying drawing explanation
The side view of the infrared touch screen that Fig. 1 provides for the utility model embodiment;
The front elevation of the infrared touch screen that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the cross-sectional view of Fig. 2 along A-A ' direction;
The touch detection method process flow diagram of the infrared touch screen that Fig. 4 provides for the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the infrared touch screen provide the utility model embodiment and the embodiment of display device are described in detail.
Wherein, in accompanying drawing, the size and shape of each device does not reflect the actual proportions of infrared touch screen, and object just signal illustrates the utility model content.
The utility model embodiment provides a kind of infrared touch screen, as depicted in figs. 1 and 2, comprising: display device 100, a pair infrared transmitter 200 that arbitrary side of display device 100 is arranged and the first infrared remote receiver 300; Wherein, infrared transmitter 200 is launched in dispersion shape and is covered many infrared rays of display device 100 light emission side, the first infrared remote receiver 300 detect in the infrared ray that infrared transmitter 200 launches occurred position of touch the infrared ray that reflects;
This infrared touch screen also comprises: on other sides except infrared transmitter 200 is set of display device 100 arrange and with infrared ray the second infrared remote receiver 400 one to one, as shown in Figure 2, each bar infrared radiation of launching of each second position of infrared remote receiver 400 on side and infrared transmitter 200 is identical to the position in respective side.
In the above-mentioned infrared touch screen that the utility model embodiment provides, on arbitrary side of display device 100, only adopt one can launch in dispersion shape and cover many ultrared infrared transmitters 200 of display device 100 light emission side, and one can detect in the infrared ray that infrared transmitter 200 launches occurred position of touch ultrared first infrared remote receiver 300 that reflects, infrared touch screen so not only can be made to improve resolution, realize accurate touch control operation, effectively can also reduce cost of manufacture, and be applicable to the display device of large-size.
In the specific implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, detect in order to the first infrared remote receiver 300 can be made in the infrared ray that infrared transmitter 200 launches occurred position of touch the infrared ray that reflects, as shown in Figure 3, this infrared transmitter 200 is generally positioned at the top of the first infrared remote receiver 300, and, generally there is between this infrared transmitter 200 and first infrared remote receiver 300 the spacing H of setting, so not only can ensure the first infrared remote receiver 300 can detect in the infrared ray that infrared transmitter 200 launches occurred position of touch the infrared ray that reflects, and according to the setting spacing H between infrared transmitter 200 and the first infrared remote receiver 300, and first infrared remote receiver 300 detect infrared ray information, can carry out further the calculating of touch point position P to the distance D of the first infrared remote receiver 300.
In the specific implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, many the infrared rays covering whole display device 100 light emission side are more easily launched in order to infrared transmitter 200 can be made, as depicted in figs. 1 and 2, this infrared transmitter 200 and the general center O that simultaneously can be positioned at arbitrary side of display device 100 of the first infrared remote receiver 300.
Usually, in the specific implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, according to the operating habit of user to infrared touch screen, the position touched by user in the infrared ray that infrared transmitter 200 is launched the base of the easy directive display device 100 of infrared ray reflected, more easily detect in order to the first infrared remote receiver 300 can be made in the infrared ray that infrared transmitter 200 launches occurred position of touch the infrared ray that reflects, as depicted in figs. 1 and 2, generally infrared transmitter 200 and the first infrared remote receiver 300 can be positioned at simultaneously the base of display device 100.
In the specific implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, in order to the infrared ray that each second infrared remote receiver 400 can be made can to detect infrared transmitter 200 transmitting better, and can according to the second infrared remote receiver 400 position not detecting infrared signal, judge the infrared ray path that touch-control occurs more accurately, as shown in Figure 2, many infrared rays that this infrared transmitter 200 is launched generally are evenly distributed on the surface of display device 100; Further, the second infrared remote receiver 400 is also distribute equably on other sides except arranging infrared transmitter 200 of display device 100.
In the specific implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, generally can also comprise: for determining that this signal processing chip is connected with each second infrared remote receiver 400 with the first infrared remote receiver 300 respectively at the signal processing chip of display device 100 light emission side generation position of touch coordinate.
In the specific implementation, in the above-mentioned infrared touch screen that the utility model embodiment provides, in order to determine that this signal processing chip specifically comprises following four unit at display device 100 light emission side generation position of touch coordinate:
For receiving the signal receiving unit of the infrared signal of the first infrared remote receiver 300 and each second infrared remote receiver 400 detecting;
In the specific implementation, as shown in Figure 1, general when there is not touch-control, when namely there is no the finger of user or other objects close to display device 100, what each second infrared remote receiver 400 can detect that infrared transmitter 200 launches covers the infrared ray whole one to one with the second infrared remote receiver 400 of display device 100 light emission side in dispersion shape, now, this signal receiving unit can receive the infrared signal that each second infrared remote receiver 400 is detected, as shown in Figure 2, when there is touch-control, namely when the finger of user or other objects are close to display device 100, can block at the infrared ray that the transmitting of the infrared transmitter 200 on position of touch occurs, therefore, the second infrared remote receiver not detecting infrared signal can be there is in each second infrared remote receiver 400, and the infrared ray be blocked can reflect, first infrared remote receiver 300 can detect occurred position of touch the infrared ray that reflects, now, this signal receiving unit can receive the infrared signal that the first infrared remote receiver 300 is detected, and do not receive the infrared signal of the second infrared remote receiver position not detecting infrared signal in each second infrared remote receiver 400,
For according to the second infrared remote receiver position not detecting infrared signal in each second infrared remote receiver 400, determine first determining unit in the infrared ray path that touch-control occurs;
In the specific implementation, because signal receiving unit exists the infrared signal not receiving the second infrared remote receiver position not detecting infrared signal in each second infrared remote receiver 400, first determining unit, according to this second infrared remote receiver position, can determine the infrared ray path that touch-control occurs;
For the infrared signal that receives according to the first infrared remote receiver 300 and the angle α of display device 100 place plane and the distance H between the first infrared remote receiver 300 and infrared transmitter 200, calculate second determining unit of touch point position P to the distance D of the first infrared remote receiver 300;
In the specific implementation, as shown in Figure 3, this second determining unit can detect the angle α of the infrared signal that the first infrared remote receiver 300 receives and display device 100 place plane, and the distance H between the first infrared remote receiver 300 and infrared transmitter 200 sets according to actual conditions, namely H is fixed value, calculates the distance D of touch point position P to the first infrared remote receiver 300 according to formula D=Hcot α;
For according to the touch point position P that calculates to the distance D of the first infrared remote receiver 300 and the infrared ray path of generation touch-control determined, determine the coordinate determining unit of touch point position P coordinate;
In the specific implementation, this coordinate determining unit can according to the distance D of the touch point position P calculated in the second determining unit to the first infrared remote receiver 300, and the first infrared ray path of the generation touch-control determined in determining unit, determine touch point position P coordinate further.
Conceive based on same utility model, the utility model embodiment still provides the touch detection method of the above-mentioned infrared touch screen that a kind of the utility model embodiment provides, the principle of dealing with problems due to the method is similar to the infrared touch screen of aforementioned one, therefore the enforcement of the method see the enforcement of infrared touch screen, can repeat part and repeats no more.
In the specific implementation, the touch detection method of the infrared touch screen that the utility model embodiment provides, as shown in Figure 4, specifically comprises the following steps:
S401, receive the first infrared remote receiver and each second infrared remote receiver detecting infrared signal;
S402, according to the second infrared remote receiver position not detecting infrared signal in each second infrared remote receiver, determine the infrared ray path of touch-control occurs;
S403, the infrared signal received according to the first infrared remote receiver and the angle of display device place plane and the distance between the first infrared remote receiver and infrared transmitter, calculate the distance of touch point position to the first infrared remote receiver;
S404, according to the touch point position that calculates to the distance of the first infrared remote receiver and the infrared ray path of generation touch-control determined, determine touch point position coordinates.
The touch detection method of the infrared touch screen provided with concrete example detailed description the utility model embodiment below, concrete steps are as follows:
1, the infrared signal of the first infrared remote receiver and each second infrared remote receiver detecting is received; In the specific implementation, as shown in Figure 2, general when there is not touch-control, what each second infrared remote receiver 400 can detect that infrared transmitter 200 launches covers many of the display device 100 light emission side infrared ray whole one to one with the second infrared remote receiver 400 in dispersion shape, now, the infrared signal of each second infrared remote receiver 400 detecting is received by signal receiving unit; When there is touch-control, can be blocked at the infrared ray that the transmitting of the infrared transmitter 200 on position of touch occurs, therefore, the second infrared remote receiver not detecting infrared signal can be there is in each second infrared remote receiver 400, and the infrared ray be blocked can reflect, first infrared remote receiver 300 can detect occurred position of touch the infrared ray that reflects, now, receive by signal receiving unit the infrared signal that the first infrared remote receiver 300 detects;
2, according to the second infrared remote receiver position not detecting infrared signal in each second infrared remote receiver, the infrared ray path that touch-control occurs is determined; In the specific implementation, as shown in Figure 2, because above-mentioned signal receiving unit exists the infrared signal not receiving the second infrared remote receiver position not detecting infrared signal in each second infrared remote receiver 400, by the first determining unit according to this second infrared remote receiver position, determine the infrared ray path that touch-control occurs;
3, the infrared signal received according to the first infrared remote receiver and the angle of display device place plane and the distance between the first infrared remote receiver and infrared transmitter, calculate the distance of touch point position to the first infrared remote receiver; In the specific implementation, as shown in Figure 3, the angle α of the infrared signal that the first infrared remote receiver 300 receives and display device 100 place plane is detected by the second determining unit, and the distance H between the first infrared remote receiver 300 and infrared transmitter 200 sets according to actual conditions, namely H is fixed value, just can calculate the distance D of touch point position P to the first infrared remote receiver 300 according to formula D=Hcot α;
4, according to the touch point position that calculates to the distance of the first infrared remote receiver and the infrared ray path of generation touch-control determined, determine touch point position coordinates; In the specific implementation, as shown in Figure 3, by coordinate determining unit according to the distance D of the touch point position P calculated in above-mentioned second determining unit to the first infrared remote receiver 300, and the infrared ray path of the generation touch-control determined in above-mentioned first determining unit, determine touch point position P coordinate.
So far, the above-mentioned steps 1 to 4 provided through instantiation determines the touch point position coordinates of the above-mentioned infrared touch screen that the utility model embodiment provides.
Conceive based on same utility model, the utility model embodiment still provides a kind of display device, comprise the above-mentioned infrared touch screen that the utility model embodiment provides, this display device can be: any product or parts with Presentation Function such as mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.Other requisite ingredient for this display device is and will be understood by those skilled in the art that to have, and does not repeat at this, also should as to restriction of the present utility model.The enforcement of this display device see the embodiment of above-mentioned infrared touch screen, can repeat part and repeats no more.
The infrared touch screen of the one that the utility model embodiment provides and display device, this infrared touch screen comprises display device, a pair infrared transmitter that arbitrary side of display device is arranged and the first infrared remote receiver; Wherein, infrared transmitter is launched in dispersion shape and is covered many infrared rays of display device light emission side, occurred in the infrared ray that the first infrared remote receiver detecting infrared transmitter is launched position of touch the infrared ray that reflects; Other sides except infrared transmitter is set also being included in display device are arranged and with infrared ray the second infrared remote receiver one to one, each bar infrared radiation that the position of each second infrared remote receiver on side and infrared transmitter are launched is identical to the position in respective side, the above-mentioned infrared touch screen that the utility model embodiment provides only adopts an infrared transmitter, not only resolution can be improved, realize accurate touch control operation, effectively can also reduce cost of manufacture, and be applicable to the display device of large-size.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (8)
1. an infrared touch screen, is characterized in that, comprising: display device, a pair infrared transmitter that arbitrary side of described display device is arranged and the first infrared remote receiver; Wherein, described infrared transmitter is launched in dispersion shape and is covered many infrared rays of described display device light emission side, described first infrared remote receiver detect in the infrared ray that described infrared transmitter launches occurred position of touch the infrared ray that reflects;
Also comprise: on other sides except described infrared transmitter is set of described display device arrange and with described infrared ray the second infrared remote receiver one to one, each bar infrared radiation that the position of each described second infrared remote receiver on side and described infrared transmitter are launched is identical to the position in respective side.
2. infrared touch screen as claimed in claim 1, is characterized in that, described infrared transmitter is positioned at the top of described first infrared remote receiver, and has setting spacing between described infrared transmitter and described first infrared remote receiver.
3. infrared touch screen as claimed in claim 2, is characterized in that, described infrared transmitter and described first infrared remote receiver are positioned at the center of arbitrary side of described display device simultaneously.
4. infrared touch screen as claimed in claim 3, is characterized in that, described infrared transmitter and described first infrared remote receiver are positioned at the base of described display device simultaneously.
5. infrared touch screen as claimed in claim 1, is characterized in that, many infrared rays that described infrared transmitter is launched are even in the surface distributed of described display device; Described second infrared remote receiver is uniformly distributed on other sides except arranging described infrared transmitter of described display device.
6. the infrared touch screen as described in any one of claim 1-5, it is characterized in that, also comprise: for determining that described signal processing chip is connected with each described second infrared remote receiver with described first infrared remote receiver respectively at the signal processing chip of described display device light emission side generation position of touch coordinate.
7. infrared touch screen as claimed in claim 6, is characterized in that, described signal processing chip specifically comprises:
For receiving the signal receiving unit of the infrared signal of described first infrared remote receiver and each described second infrared remote receiver detecting;
For according to the second infrared remote receiver position not detecting infrared signal in each described second infrared remote receiver, determine first determining unit in the infrared ray path that touch-control occurs;
For the infrared signal that receives according to described first infrared remote receiver and the angle of described display device place plane and the distance between described first infrared remote receiver and described infrared transmitter, calculate second determining unit of touch point position to the distance of described first infrared remote receiver;
For according to the described touch point position that calculates to the distance of described first infrared remote receiver and the infrared ray path of described generation touch-control determined, determine the coordinate determining unit of described touch point position coordinates.
8. a display device, is characterized in that, comprises the infrared touch screen as described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760347.1U CN204229384U (en) | 2014-12-04 | 2014-12-04 | A kind of infrared touch screen and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760347.1U CN204229384U (en) | 2014-12-04 | 2014-12-04 | A kind of infrared touch screen and display device |
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| Publication Number | Publication Date |
|---|---|
| CN204229384U true CN204229384U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420760347.1U Withdrawn - After Issue CN204229384U (en) | 2014-12-04 | 2014-12-04 | A kind of infrared touch screen and display device |
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| Country | Link |
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| CN (1) | CN204229384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407747A (en) * | 2014-12-04 | 2015-03-11 | 京东方科技集团股份有限公司 | Infrared touch screen, touch sensing method and display device |
| CN112230804A (en) * | 2020-12-15 | 2021-01-15 | 京东方科技集团股份有限公司 | Display device |
-
2014
- 2014-12-04 CN CN201420760347.1U patent/CN204229384U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407747A (en) * | 2014-12-04 | 2015-03-11 | 京东方科技集团股份有限公司 | Infrared touch screen, touch sensing method and display device |
| CN104407747B (en) * | 2014-12-04 | 2018-03-16 | 京东方科技集团股份有限公司 | A kind of infrared touch screen, its touch detection method and display device |
| CN112230804A (en) * | 2020-12-15 | 2021-01-15 | 京东方科技集团股份有限公司 | Display device |
| CN112230804B (en) * | 2020-12-15 | 2021-03-26 | 京东方科技集团股份有限公司 | Display device |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150325 Effective date of abandoning: 20180316 |
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| AV01 | Patent right actively abandoned |