CN102693049A - Touch screen - Google Patents
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- CN102693049A CN102693049A CN2012101999875A CN201210199987A CN102693049A CN 102693049 A CN102693049 A CN 102693049A CN 2012101999875 A CN2012101999875 A CN 2012101999875A CN 201210199987 A CN201210199987 A CN 201210199987A CN 102693049 A CN102693049 A CN 102693049A
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Abstract
The invention discloses a touch screen. At least two cameras are mounted on the same edge of the touch screen and luminous zones are mounted on at least other three edges except the edge. Each luminous zone is composed of at least two light-emitting devices which are mounted on the same edge of the touch screen, or is composed of the light-emitting device and a light-conducting strip. According to the invention, the luminous zones are mounted on at least three edges of the touch screen and a reflection film is not needed. Through the luminous zones on the different edges, the cameras can directly receive emitted light, so that the problem that the reflection film has an identification blind zone when large-angle incidence of the light is carried out is solved; and therefore, the stability and the sensitivity of the touch screen are enhanced.
Description
Technical field
The present invention relates to the touch screen technology field, relate in particular to a kind of touch-screen.
Background technology
At present, general design of touch panel thinking is that camera, illuminator and reflective membrane are installed on touch-screen simultaneously.The installation site of illuminator overlaps with the installation site of camera is vertical usually.With two cameras is example, and camera can be installed in the upper left corner and the upper right corner of touch-screen respectively, and the illuminator in the upper left corner is launched light, through turning back in the camera in the upper left corner after the reflective membrane reflection on the touch-screen; Same, the light of the illuminator emission in the upper right corner imports in the camera in the upper right corner.When touching when a bit, the light that ejaculation light and the camera through illuminator receives can be confirmed the coordinate of touch point, realizes touching reaction.But this way that relies on reflective membrane because there is the blind area in reflective membrane when the incident of light wide-angle, can cause the regional signal of this blind area to die down, and influence touches the sensitivity and the stability of reaction identification.
Summary of the invention
For solving the problem of above-mentioned existence, the invention provides a kind of touch-screen.
A kind of touch-screen has at least two cameras to be installed on same the limit of said touch-screen, on other at least three limits outside the said limit, luminous zone is installed.
Compare with general technology, the present invention is separately installed with luminous zone at least three limits of touch-screen, need not to use reflective membrane.Through being positioned at the luminous zone on the different edge, camera can directly receive the light of being launched, thereby has overcome reflective membrane existing identification blind zone problem when the incident of light wide-angle, has strengthened the stability and the sensitivity of touch-screen.
Description of drawings
The structural representation of touch-screen of the present invention when Fig. 1 is two cameras;
The structural representation of touch-screen of the present invention when Fig. 2 is four cameras;
Touch-screen of the present invention was equipped with the structural representation of leaded light bar when Fig. 3 was two cameras;
Touch-screen of the present invention was equipped with the structural representation of leaded light bar when Fig. 4 was four cameras.
Embodiment
Be further set forth the present invention technological means of being taked and the effect that obtains,,, know and complete description technical scheme of the present invention below in conjunction with accompanying drawing and preferred embodiment.
A kind of touch-screen has at least two cameras to be installed on same the limit of said touch-screen, on other at least three limits outside the said limit, luminous zone is installed.
Said camera has two at least.Said touch-screen can be rectangle or square, also can be other shape.Said camera can be installed on the upper right corner, the upper left corner, the lower right corner or the lower left corner of said touch-screen.Said camera also can be installed on other position of touch-screen according to the actual conditions needs, for example on the limit of touch-screen.
As one of them embodiment, said luminous zone can be made up of two light-emitting devices on same the limit that is installed on touch-screen at least.
Preferably, said light-emitting device is equidistantly installed at the Bian Shangwei of touch-screen.Said spacing can be the random length between 10 millimeters to 500 millimeters.The light that said light-emitting device sends can be IR.
Light-emitting device adopts the mode of wide-angle emission to form the light of launching to a plurality of directions, and the camera that is positioned at diverse location can receive the light that emits.
As one of them embodiment, said camera can be two, and two cameras are installed on same the limit of touch-screen, and said luminous zone is installed on other limit outside the limit of said touch-screen.Thereby can guarantee that the light that light-emitting device sends can cover whole touch screen.
The structural representation of touch-screen of the present invention when Fig. 1 is two cameras.
Two cameras are installed on the upper left corner and the upper right corner of touch-screen respectively, and light-emitting device is installed on respectively on other three limit in addition, limit at two camera places, thereby on three limits, forms luminous zone.
As one of them embodiment, said camera can be four, is installed on respectively on the four edges of touch-screen, and said luminous zone is installed on the four edges of said touch-screen.Thereby can guarantee that the light that light-emitting device sends can cover whole touch screen.
The structural representation of touch-screen of the present invention when Fig. 2 is four cameras.
Four cameras are installed on four angles of touch-screen respectively, and light-emitting device is installed on respectively on four limits of touch-screen, thereby on four limits, forms luminous zone.
Compare with general technology, the present invention is separately installed with luminous zone at least three limits of touch-screen, need not to use reflective membrane.Through being positioned at the luminous zone on the different edge, camera can directly receive the light of being launched, thereby has overcome reflective membrane existing identification blind zone problem when the incident of light wide-angle, has strengthened the stability and the sensitivity of touch-screen.
And because common practices adopts the vertical mode that overlaps installation of illuminator and camera usually, so light sends from illuminator earlier, then through after the reflective membrane reflection more former road, edge be back to camera.And the present invention is owing to need not to adopt reflective membrane, but the light that camera directly receives luminous zone to be sent, and therefore shortened the transmission range of light path, strengthens the useful signal that receives.Through rational leaded light and shading design, can make that any one regional luminosity of touch-screen is even.
For the touch-screen that adopts reflective membrane, also exist light and received by camera through the felt pen reflection and the situation that causes judging by accident from the camera lens emission.Touch-screen of the present invention efficiently solves this problem, and light directly gets into camera from afar, does not have reflection case, also can realize accurate location near the camera zone.In addition, it is thinner narrower to adopt the present invention can make that the touch-screen product design gets, and both saves material, and has strengthened portability and aesthetic measure again.
As one of them embodiment, said luminous zone can be made up of light-emitting device and leaded light bar, and said leaded light bar is mounted thereon along a limit of touch-screen, and said light-emitting device is installed on the two ends of said leaded light bar.
Preferably, the length on the limit that is mounted thereon of the length of said leaded light bar and said leaded light bar is identical.
For example, said leaded light bar can the mode parallel with the limit of touch-screen be installed on the limit of touch-screen, and said light-emitting device is installed on the two ends of said leaded light bar.
Said touch-screen can be rectangle or square.
The leaded light bar is installed, because the leaded light bar includes the reflection transmission and light transmits dual mode in medium on said touch-screen.This employing light-emitting device cooperates the Mixed Design mode of leaded light bar, can reduce the quantity of light-emitting device, reduces cost.
Touch-screen of the present invention was equipped with the structural representation of leaded light bar when Fig. 3 was two cameras.
Two cameras are installed on the upper left corner and the upper right corner of touch-screen respectively, and the leaded light bar is installed on respectively on other three limit in addition, limit at two camera places.And the two ends at the leaded light bar are equipped with light-emitting device.Among Fig. 3, light-emitting device is installed in the two ends of leaded light bar, also is on each angle of touch-screen.Position on the limit of touch-screen except that each summit, place, angle need not mounting light emitting device again, and light can form luminous zone through being launched into all directions in leaded light bar inner a series of reflections and projection, thereby covers whole touch screen.
Touch-screen of the present invention was equipped with the structural representation of leaded light bar when Fig. 4 was four cameras.
Four cameras are installed on respectively on four angles of touch-screen, and the leaded light bar is installed on the four edges respectively.And the two ends at the leaded light bar are equipped with light-emitting device.Among Fig. 4, light-emitting device is installed in the two ends of leaded light bar, also is on each angle of touch-screen.Position on the limit of touch-screen except that each summit, place, angle need not mounting light emitting device again, and light can form luminous zone through being launched into all directions in leaded light bar inner a series of reflections and projection, thereby covers whole touch screen.
Can draw by Fig. 3 and Fig. 4, adopt the leaded light bar can save the quantity of light-emitting device, reduce cost.
The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. a touch-screen has at least two cameras to be installed on same the limit of said touch-screen, it is characterized in that, on other at least three limits outside the said limit, luminous zone is installed.
2. touch-screen according to claim 1 is characterized in that, said luminous zone is made up of two light-emitting devices on same the limit that is installed on touch-screen at least.
3. touch-screen according to claim 2 is characterized in that said light-emitting device is equidistantly installed at the Bian Shangwei of touch-screen.
4. touch-screen according to claim 3 is characterized in that, said spacing is the random length between 10 millimeters to 500 millimeters.
5. touch-screen according to claim 2 is characterized in that, the light that said light-emitting device sends is IR.
6. touch-screen according to claim 1 is characterized in that, said luminous zone is made up of light-emitting device and leaded light bar, and said leaded light bar is mounted thereon along a limit of touch-screen, and said light-emitting device is installed on the two ends of said leaded light bar.
7. touch-screen according to claim 6 is characterized in that, the length of said leaded light bar is identical with the length on the limit that said leaded light bar is mounted thereon.
8. touch-screen according to claim 1 is characterized in that, said touch-screen is rectangle or square.
9. touch-screen according to claim 1 is characterized in that, said camera is two, and two cameras are installed on same the limit of touch-screen, and said luminous zone is installed on other limit outside the limit of said touch-screen.
10. touch-screen according to claim 1 is characterized in that, said camera is four, is installed on respectively on the four edges of touch-screen, and said luminous zone is installed on the four edges of said touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210199987.5A CN102693049B (en) | 2012-06-15 | 2012-06-15 | A kind of touch-screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210199987.5A CN102693049B (en) | 2012-06-15 | 2012-06-15 | A kind of touch-screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102693049A true CN102693049A (en) | 2012-09-26 |
| CN102693049B CN102693049B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210199987.5A Active CN102693049B (en) | 2012-06-15 | 2012-06-15 | A kind of touch-screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458576A (en) * | 2013-08-22 | 2013-12-18 | 广州视睿电子科技有限公司 | Light-emitting component driving circuit and optical touch screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413507Y (en) * | 2009-06-01 | 2010-02-24 | 北京汇冠新技术股份有限公司 | Touch detection device |
| US20110026011A1 (en) * | 2009-07-31 | 2011-02-03 | Seiko Epson Corporation | Optical position detection apparatus and display apparatus having position detection function |
| CN102023764A (en) * | 2010-12-22 | 2011-04-20 | 广东威创视讯科技股份有限公司 | Optical positioning device and method |
| CN102023762A (en) * | 2010-12-08 | 2011-04-20 | 成都际洲科技有限公司 | Optical multipoint touch screen and implementation method thereof |
| US20120075191A1 (en) * | 2009-03-27 | 2012-03-29 | Lenovo (Beijing) Co., Ltd. | Optical Touch System and Method for Optical Touch Location |
-
2012
- 2012-06-15 CN CN201210199987.5A patent/CN102693049B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120075191A1 (en) * | 2009-03-27 | 2012-03-29 | Lenovo (Beijing) Co., Ltd. | Optical Touch System and Method for Optical Touch Location |
| CN201413507Y (en) * | 2009-06-01 | 2010-02-24 | 北京汇冠新技术股份有限公司 | Touch detection device |
| US20110026011A1 (en) * | 2009-07-31 | 2011-02-03 | Seiko Epson Corporation | Optical position detection apparatus and display apparatus having position detection function |
| CN102023762A (en) * | 2010-12-08 | 2011-04-20 | 成都际洲科技有限公司 | Optical multipoint touch screen and implementation method thereof |
| CN102023764A (en) * | 2010-12-22 | 2011-04-20 | 广东威创视讯科技股份有限公司 | Optical positioning device and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458576A (en) * | 2013-08-22 | 2013-12-18 | 广州视睿电子科技有限公司 | Light-emitting component driving circuit and optical touch screen |
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| Publication number | Publication date |
|---|---|
| CN102693049B (en) | 2016-03-30 |
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