CN102629171A - Touch display device - Google Patents
Touch display deviceDownload PDFInfo
- Publication number
- CN102629171A CN102629171ACN2012100899066ACN201210089906ACN102629171ACN 102629171 ACN102629171 ACN 102629171ACN 2012100899066 ACN2012100899066 ACN 2012100899066ACN 201210089906 ACN201210089906 ACN 201210089906ACN 102629171 ACN102629171 ACN 102629171A
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- transparent plate
- touch display
- infrared
- receiving tube
- display unit
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- 230000031700light absorptionEffects0.000claimsdescription10
- 239000011248coating agentSubstances0.000claimsdescription4
- 238000000576coating methodMethods0.000claimsdescription4
- 239000011521glassSubstances0.000claimsdescription3
- 230000009286beneficial effectEffects0.000description1
- 239000003795chemical substances by applicationSubstances0.000description1
- 230000007812deficiencyEffects0.000description1
- 230000003993interactionEffects0.000description1
- 230000002452interceptive effectEffects0.000description1
- 230000004807localizationEffects0.000description1
- 238000000034methodMethods0.000description1
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Abstract
Description
Technical field
The invention belongs to and touch the demonstration field, be specifically related to a kind of touch display unit.
Background technology
Touch-screen is the simplest, convenient, natural at present a kind of man-machine interaction mode as a kind of new computer input equipment.It has given multimedia with brand-new looks, is extremely attractive brand-new multimedia interactive equipment.
Existing infrared touch localization method generally is in the marginal portion of display device infrared transmitting tube and infrared receiving tube to be set; When object touched the display device surface, touch objects was known from experience the light that stops the infrared transmitting tube emission and is got into corresponding infrared receiving tube, and the energy that so corresponding infrared receiving tube receives weakens; Reasonable threshold value is set; Detect the position of horizontal and vertical receiving tube,, judge the position that touches object according to the position of receiving tube.
Utilize existing location technology,, form protruding frame in display device edge part branch for infrared transmitting tube and infrared receiving tube are installed.When carrying out touch operation, need to note constantly protruding frame, in order to avoid make the infrared tube damage or influence its operate as normal, make the reliability that touches the location reduce, operate easy inadequately convenience.
Summary of the invention
The technical matters that the present invention solves is the deficiency that overcomes prior art, provides a kind of touch reliability of positioning high, easy to operate simple touch display unit.
Technical scheme of the present invention is following:
A kind of touch display unit; Comprise display screen, infrared transmitting tube and infrared receiving tube; Be provided with transparent plate in display screen surface; The edge of transparent plate exceeds the display screen viewing area and forms projecting edge, and the one side towards display screen on the relative projecting edge of transparent plate is provided with said infrared transmitting tube and infrared receiving tube.
In the such scheme, said projecting edge is provided with groove towards the one side of display screen, and infrared transmitting tube and infrared receiving tube are arranged in the groove.
In the such scheme, the opening part of said groove is provided with emission layer or light-absorption layer, and the one side with transparent plate surface homonymy on projecting edge is provided with emission layer or light-absorption layer.
In the such scheme, the side of display screen is provided with and is used to support and the fixing bracing frame of transparent plate, and support frame as described above is over against an opening part of groove.
In the such scheme, said groove is arranged on the bracing frame surface or is arranged on the slot opening place separately over against the reflection horizon or the light-absorption layer of the opening part of bracing frame.
In the such scheme, said groove is a rectangular recess.
In the such scheme; Infrared transmitting tube and infrared receiving tube are obliquely installed with respect to transparent plate; The plane of incidence of infrared transmitting tube and infrared receiving tube is set to the inclined-plane, and the incident light of the emission light of infrared transmitting tube or infrared receiving tube is set to oblique incidence to transparent plate or tilts from the transparent plate outgoing.
In the such scheme, infrared transmitting tube is provided with respect to transparent plate is vertical with infrared receiving tube, and the plane of incidence of infrared transmitting tube and infrared receiving tube is set to the inclined-plane, and reflectance coating is set on the inclined-plane.
In the such scheme, said transparent plate is a transparency glass plate.
In the such scheme, on projecting edge with the one side of transparent plate surface homonymy be set to along the transparent plate upper surface extend circular-arc.
Compared with prior art, the beneficial effect of technical scheme of the present invention is:
Transparent plate is arranged on display screen surface; And its part that exceeds the display screen viewing area perhaps is provided with groove at outshot over against infrared transmitting tube and infrared receiving tube, and infrared transmitting tube and infrared receiving tube are set in groove; The IR that infrared transmitting tube sends carries out total reflection after getting into transparent plate; Be transmitted to the corresponding infrared receiving tube that is provided with forward, when touching object touch transparent plate surface, touch object and destroy the total reflection of light on its surface in contact; The energy that causes infrared receiving tube to receive weakens, and according to the position of infrared receiving tube the touch point is positioned.The present invention is provided with transparent plate and makes the touch display unit surfacing, no raised border, and infrared transmitting tube and infrared receiving tube receive the protection of transparent plate, are difficult for the influence of manual operation factor, touch reliability of positioning and improve, and be easy to install and operation.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the light emission design sketch of infrared transmitting tube among the present invention and infrared receiving tube;
Fig. 3 is the energy sketch of infrared transmitting tube among the present invention and infrared receiving tube;
Fig. 4 is the structural representation ofspecific embodiment 1 among the present invention;
Fig. 5 is the structural representation ofspecific embodiment 2 among the present invention;
Fig. 6 is the structural representation ofspecific embodiment 3 among the present invention;
Fig. 7 is the structural representation of specific embodiment 4 among the present invention;
Fig. 8 is the structural representation ofspecific embodiment 5 among the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is done further explanation.
As shown in Figure 1, be touch display unit structural representation of the present invention.A kind of touch display unit comprisesdisplay screen 1,infrared transmitting tube 2,infrared receiving tube 3, transparent plate 4, and transparent plate 4 is a transparency glass plate.Ondisplay screen 1 surface transparent plate 4 is set, the edge of transparent plate 4 exceedsdisplay screen 1 viewing area and forms projectingedge 41, and the one side towardsdisplay screen 1 on therelative projecting edge 41 of transparent plate 4 is provided with infrared transmittingtube 2 andinfrared receiving tube 3.
As shown in Figures 2 and 3; The IR that infrared transmittingtube 2 sends carries out total reflection after getting into transparent plate 4; Be transmitted to infraredreceiving tube 3 forward, when touchingobject 5 touch transparent plates 4 surfaces, destroy the total reflection of light on its transparent plate 4 surface in contacts; The energy that causesinfrared receiving tube 3 to receive weakens, and according to the position ofinfrared receiving tube 3 touch point is positioned.
As shown in Figure 4, for the infrared light that prevents infrared transmittingtube 2 emission is penetrated by transparent plate 4 and influence bearing accuracy, the one side towardsdisplay screen 1 on projectingedge 41 is provided withgroove 42, and infrared transmittingtube 2 andinfrared receiving tube 3 are arranged in thegroove 42.
, the infrared light that further prevents infrared transmittingtube 2 emissions influences bearing accuracy for being penetrated by transparent plate 4; Opening part atgroove 42 is provided with emission layer or light-absorption layer; One side with transparent plate 4 surperficial homonymies on projectingedge 41 also is provided with emission layer or light-absorption layer, and emission layer or light-absorption layer are used for reflecting or absorbing the infrared light that is penetrated by transparent plate 4.
As shown in Figure 5, the side ofdisplay screen 1 is provided with and is used to support and the fixing bracing frame 6 of transparent plate 4, and bracing frame 6 is right againstgroove 42 one of them opening part, and at this moment, the electronic cable of drawing infrared transmittingtube 2 andinfrared receiving tube 3 is curved to displayscreen 1 back;Groove 42 is arranged on bracing frame 6 surfaces or is arranged ongroove 42 opening parts separately over against the reflection horizon or the light-absorption layer of the opening part of bracing frame 6.
Groove 42 is the groove of rectangular recess, trapezoidal groove or other shapes.
As shown in Figure 6; Because infrared transmittingtube 2 luminous has certain angle; In order to improve the energy of light in transparent plate 4 upper surface generation total reflections, according to infrared transmittingtube 2 luminous energy angle distribution characteristics, the plane of incidence of infrared transmittingtube 2 andinfrared receiving tube 3 is set to inclined-plane 7; Infrared transmittingtube 2 andinfrared receiving tube 3 are obliquely installed with respect to transparent plate 4; And the incident light of the emission light of infrared transmittingtube 2 orinfrared receiving tube 3 is set to oblique incidence to transparent plate or tilts from the transparent plate outgoing, and the energy that total reflections take place on transparent plate 4 surfaces strengthen, when touchingobject 5 and touch; Reduce more obviously at infrared receivingtube 3 end energy, help judge to touch the position location.
As shown in Figure 7; In order to improve total reflection energy and convenient infrared transmittingtube 2 and theinfrared receiving tube 3 installed; With infrared transmittingtube 2 andinfrared receiving tube 3 with respect to transparent plate 4 vertical settings; The plane of incidence of infrared transmittingtube 2 andinfrared receiving tube 3 is set to inclined-plane 7, on the inclined-plane 7 reflectance coating is set, and the light that infrared transmittingtube 2 is launched carries out total reflection through getting into transparent plate 4 again after the reflectance coating reflection.
As shown in Figure 8, on the projectingedge 41 with the one side of transparent plate 4 surperficial homonymies be set to along transparent plate 4 upper surfaces extend circular-arc, sight that can the agents enhance overall touch display unit, and reliability is improved.
Claims (10)
1. touch display unit; Comprise display screen, infrared transmitting tube and infrared receiving tube; It is characterized in that; Be provided with transparent plate in display screen surface, the edge of transparent plate exceeds the display screen viewing area and forms projecting edge, and the one side towards display screen on the relative projecting edge of transparent plate is provided with said infrared transmitting tube and infrared receiving tube.
2. touch display unit according to claim 1 is characterized in that said projecting edge is provided with groove towards the one side of display screen, and infrared transmitting tube and infrared receiving tube are arranged in the groove.
3. touch display unit according to claim 2 is characterized in that the opening part of said groove is provided with emission layer or light-absorption layer, and the one side with transparent plate surface homonymy on projecting edge is provided with emission layer or light-absorption layer.
4. touch display unit according to claim 3 is characterized in that, the side of display screen is provided with and is used to support and the fixing bracing frame of transparent plate, and support frame as described above is over against an opening part of groove.
5. touch display unit according to claim 4 is characterized in that, said groove is arranged on the bracing frame surface or is arranged on the slot opening place separately over against the reflection horizon or the light-absorption layer of the opening part of bracing frame.
6. touch display unit according to claim 2 is characterized in that, said groove is a rectangular recess.
7. according to each described touch display unit of claim 1 to 6; It is characterized in that; Infrared transmitting tube and infrared receiving tube are obliquely installed with respect to transparent plate; The plane of incidence of infrared transmitting tube and infrared receiving tube is set to the inclined-plane, and the emission light of infrared transmitting tube or the incident light of infrared receiving tube are set to oblique incidence to transparent plate or tilt from the transparent plate outgoing.
8. according to each described touch display unit of claim 1 to 6, it is characterized in that infrared transmitting tube is provided with respect to transparent plate is vertical with infrared receiving tube, the plane of incidence of infrared transmitting tube and infrared receiving tube is set to the inclined-plane, and reflectance coating is set on the inclined-plane.
9. according to each described touch display unit of claim 1 to 6, it is characterized in that said transparent plate is a transparency glass plate.
10. according to each described touch display unit of claim 1 to 6, it is characterized in that, on projecting edge with the one side of transparent plate surface homonymy be set to along the transparent plate upper surface extend circular-arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100899066ACN102629171A (en) | 2012-03-30 | 2012-03-30 | Touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100899066ACN102629171A (en) | 2012-03-30 | 2012-03-30 | Touch display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102629171Atrue CN102629171A (en) | 2012-08-08 |
Family
ID=46587433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100899066APendingCN102629171A (en) | 2012-03-30 | 2012-03-30 | Touch display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102629171A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019471A (en)* | 2012-11-30 | 2013-04-03 | 深圳市深越光电技术有限公司 | Optical touch screen |
| CN105912155A (en)* | 2016-04-01 | 2016-08-31 | 深圳市华星光电技术有限公司 | Electromagnetic touch screen and electromagnetic touch-control system |
| CN108628398A (en)* | 2017-03-24 | 2018-10-09 | 敦捷光电股份有限公司 | Display with biological characteristic recognition function |
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| CN2773799Y (en)* | 2004-10-21 | 2006-04-19 | 北京汇冠新技术有限公司 | Optical path system of infrared touch screen by reflector mirrow |
| CN101153972A (en)* | 2006-09-26 | 2008-04-02 | Lg.菲利浦Lcd株式会社 | Display with infrared backlight and multi-touch sensing function |
| CN101231450A (en)* | 2008-02-25 | 2008-07-30 | 陈伟山 | Multipoint and object touch panel arrangement as well as multipoint touch orientation method |
| CN201402455Y (en)* | 2009-03-12 | 2010-02-10 | 贺伟 | Infrared touch screen frame structure |
| US20100214269A1 (en)* | 2009-02-25 | 2010-08-26 | Pixart Imaging Inc. | Optical touch module |
| CN101866247A (en)* | 2010-07-08 | 2010-10-20 | 合肥工业大学 | Side detection multi-touch screen based on frustrated total internal reflection |
- 2012
- 2012-03-30CNCN2012100899066Apatent/CN102629171A/enactivePending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773799Y (en)* | 2004-10-21 | 2006-04-19 | 北京汇冠新技术有限公司 | Optical path system of infrared touch screen by reflector mirrow |
| CN101153972A (en)* | 2006-09-26 | 2008-04-02 | Lg.菲利浦Lcd株式会社 | Display with infrared backlight and multi-touch sensing function |
| CN101231450A (en)* | 2008-02-25 | 2008-07-30 | 陈伟山 | Multipoint and object touch panel arrangement as well as multipoint touch orientation method |
| US20100214269A1 (en)* | 2009-02-25 | 2010-08-26 | Pixart Imaging Inc. | Optical touch module |
| CN201402455Y (en)* | 2009-03-12 | 2010-02-10 | 贺伟 | Infrared touch screen frame structure |
| CN101866247A (en)* | 2010-07-08 | 2010-10-20 | 合肥工业大学 | Side detection multi-touch screen based on frustrated total internal reflection |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019471A (en)* | 2012-11-30 | 2013-04-03 | 深圳市深越光电技术有限公司 | Optical touch screen |
| CN103019471B (en)* | 2012-11-30 | 2016-04-27 | 深圳市深越光电技术有限公司 | Optical touch screen |
| CN105912155A (en)* | 2016-04-01 | 2016-08-31 | 深圳市华星光电技术有限公司 | Electromagnetic touch screen and electromagnetic touch-control system |
| CN105912155B (en)* | 2016-04-01 | 2019-06-25 | 深圳市华星光电技术有限公司 | Electromagnetic touch screen and electromagnetic touch system |
| CN108628398A (en)* | 2017-03-24 | 2018-10-09 | 敦捷光电股份有限公司 | Display with biological characteristic recognition function |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20120808 |