CN201440255U - Optical contact control module - Google Patents
Optical contact control module Download PDFInfo
- Publication number
- CN201440255U CN201440255U CN2009201565437U CN200920156543U CN201440255U CN 201440255 U CN201440255 U CN 201440255U CN 2009201565437 U CN2009201565437 U CN 2009201565437U CN 200920156543 U CN200920156543 U CN 200920156543U CN 201440255 U CN201440255 U CN 201440255U
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- CN
- China
- Prior art keywords
- light
- optical touch
- touch module
- light source
- image unit
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- Expired - Lifetime
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Abstract
The utility model relates to an optical contact control module, which comprises a frame, a first image pick-up unit, a second image pick-up unit, a first light source, a second light source, a first reflection element and a light barrier wall, wherein the first image pick-up unit and the second image pick-up unit are arranged on the frame, the first light source and the second light source are respectively in adjacent arrangement to the first image pick-up unit and the second image pick-up unit, the first light source and the second image pick-up unit form a first connection line, the first reflection element is arranged at a first side edge of the frame, and comprises a peak, the peak and the second image pick-up unit form a second connection line, the light barrier wall blocks the first connection line, and the light barrier wall can not block the second connection line.
Description
Technical field
The utility model is about a kind of optical touch module, particularly a kind of optical touch module of utilizing image unit to differentiate touching signals.
Background technology
For cost consideration, traditional common touch-control module mostly is resistance-type, also has technology such as infrared ray, ultrasound wave or surface capacitance type in addition, day by day popularizes along with diversified large size panel application product.Large touch panel easy to use, as to be beneficial to interaction has turned to the propelling of life periphery from worker in the past, the commercial application.For asking the effect of reaching multi-point touch, precedingly more proposed to utilize image unit to differentiate the optical touch module of touching signals.
Fig. 1 is the synoptic diagram of traditional optical touch module.See also Fig. 1, traditional optical touch module 10 comprises contact panel 11, image unit 12,13, reflecting strips 14,16,17 and framework 15. Image unit 12,13 is separately positioned on the upper left corner and the upper right corner of contact panel 11, and reflecting strips 14 is attached to the lower side of contact panel 11, reflecting strips 16,17 is attached to the left and right side of contact panel 11, in addition, also is provided with light source 18,19 with image unit 12,13 adjacents.For instance, light source 18,19 can the emission infrared lights, and the infrared light that sends can be by reflecting strips 14,16,17 and along the original route reflection, and the light of catching reflection by image unit 12,13 is to judge touching signals.
Yet above-mentioned optical touch module 10 has following problem, because reflecting strips 14,16,17 and image unit 12,13 are set directly on the contact panel 11, the related contact panel 11 that makes of possibility is impaired when doing over again or keep in repair.
In addition, as shown in Figure 1, the light that is sent by left light source 18 is directly in the right-hand image unit 13 of directive, and shown in arrow A 1, similarly, the light that is sent by right-hand light source 19 is also directly in the directive left image unit 12, shown in arrow A 2.Produce the optical phenomenon that overflows owing to build the sensor (not shown) of judging touching signals in the image unit in blaze may make in, further may cause problems such as signal interpretation mistake and generation noise.
Moreover, if during the image unit 12 of the light that the light source 19 in the upper right corner sends (as arrow B), also may cause the signal erroneous judgement or produce the problem of noise by reflecting strips 14 partial reflections that stick on lower side to the upper left corner.Similarly, during the image unit 13 of the light that sends by the light source 18 in the upper left corner, also can produce same problem by reflecting strips 14 partial reflections that stick on lower side to the upper right corner.
In sum, the structural design of traditional optical touch module 10 may make contact panel 11 damage when doing over again or keep in repair, and because the relation of light refraction may cause the interpretation mistake of touching signals or produce noise.
The utility model content
The purpose of this utility model just provides a kind of optical touch module that can overcome the prior art shortcoming.
According to the utility model, a kind of optical touch module is provided, comprising:
One framework;
One first image unit is arranged on a primary importance of this framework;
One second image unit is arranged on the second place of this framework, adjacent this primary importance of this second place;
One first light source, with the adjacent setting of this first image unit, this first light source and this second image unit form one first line;
One secondary light source is with the adjacent setting of this second image unit;
One first reflecting component is arranged on a first side of this framework, and this first side is adjacent with this first image unit, and this first reflecting component comprises a summit, and this summit and this second image unit form one second line; And
One wall that is in the light, this wall that is in the light stops this first line, and this wall that is in the light can not stop this second line;
Described optical touch module also comprises one second reflecting piece, and this second reflecting piece is arranged on a second side of this framework, and this second side is adjacent with this first side;
Described optical touch module, wherein this second reflecting piece is arranged on this second side with an angle of inclination;
Described optical touch module, wherein the scope at this angle of inclination is between the 3-10 degree;
Described optical touch module, wherein this wall that is in the light comprises a support portion and a light-blocking part, this support portion is connected with this light-blocking part and becomes T shape form;
Described optical touch module comprises a panel respectively between this first reflecting piece and this second reflecting piece and this framework;
Described optical touch module, this first reflecting piece and this second reflecting piece is separately positioned on and this framework and a panel between;
Described optical touch module, wherein this panel is a light-transmitting materials;
Described optical touch module, wherein this first light source and this secondary light source comprise light emitting diode;
Described optical touch module, wherein this wall that is in the light comprises a support portion and a light-blocking part, this support portion is connected with this light-blocking part and becomes T shape form;
Described optical touch module comprises a panel respectively between this first reflecting piece and this second reflecting piece and this framework;
Described optical touch module, this first reflecting piece and this second reflecting piece is separately positioned on and this framework and a panel between;
Described optical touch module, wherein this panel is a light-transmitting materials;
Described optical touch module, wherein this first light source and this secondary light source comprise light emitting diode;
Described optical touch module, wherein the scope at this angle of inclination is between the 3-10 degree;
Optical touch module of the present utility model comprises framework, first image unit, second image unit, first light source, secondary light source, first reflecting component and the wall that is in the light.Image unit is arranged on the framework, adjacent with first and second image unit respectively setting of first and second light source, first light source and second image unit form first line, first reflecting component is arranged on the first side of framework and comprises the summit, the summit and second image unit form second line, the wall that is in the light stops first line, and the wall that is in the light can not stop second line.
It should be noted that the optical touch module also comprises second reflecting piece, second reflecting piece is arranged on the second side of framework, and second side and first side are adjacent.
It should be noted that second reflecting piece is arranged on the second side with the angle of inclination.
It should be noted that the scope at angle of inclination is between the 3-10 degree.
It should be noted that the wall that is in the light comprises support portion and light-blocking part, the support portion is connected with light-blocking part and becomes T shape form.
It should be noted, comprise panel respectively between first reflecting piece and second reflecting piece and the framework.
It should be noted, first reflecting piece and second reflecting piece be separately positioned on and framework and panel between.
It should be noted that panel is a light-transmitting materials.
It should be noted that first light source and secondary light source comprise light emitting diode.
For the utility model can be become apparent, cited below particularlyly go out preferred embodiment, and conjunction with figs., be described in detail below:
Description of drawings
Fig. 1 is the synoptic diagram of traditional optical touch module;
Fig. 2 is the synoptic diagram of the utility model optical touch module;
Fig. 3 is along the sectional view of profile line 3-3 among Fig. 2;
Fig. 4 is the synoptic diagram of another embodiment of reflecting component of the utility model optical touch module.
The main element symbol description
Traditional technology
10 optical touch modules, 11 contact panels
12,13 image units, 14,16,17 reflecting strips
15 frameworks, 18,19 light sources
A1, A2, B arrow
The utility model
20 optical touch modules, 21 frameworks
22 first image units, 23 second image units
24,25 reflecting components, 241 summits
27 wall 271 support portions of being in the light
272 light-blocking parts, 28 downside reflecting components
282 panels, 26 secondary light sources
29 first light sources, 30 contact panels
The L1 first line L2 second line
α inclination angle beta angle
The C arrow
Embodiment
Fig. 2 is the synoptic diagram of the utility model optical touch module.
See also Fig. 2, optical touch module 20 of the present utility model comprises framework 21, first, second image unit 22,23, first, second reflecting component 24,25, the wall 27 that is in the light, downside reflecting component 28, first, second light source 29,26 and contact panel 30.Framework 21 surrounds contact panel 30, first, second image unit 22,23 are located at the position on the framework 21 respectively, in the present embodiment, first, second image unit 22,23 are arranged on the upper left corner and the upper right corner of framework 21, first, second reflecting component 24,25 are located at the left side on the framework 21, right edge, the wall 27 that is in the light is located on the framework 21, roughly be positioned at framework 21 upper side edge stage casing parts, in order to stop that the light of being launched by secondary light source 26 directly enters first image unit 22 and entered in second image unit 23 by the light that first light source 29 is launched, wherein, first, secondary light source 29,26 respectively with first, second image unit 22,23 adjacent settings.In one embodiment, first, second light source 29,26 is a light emitting diode.In one embodiment, first, second reflecting component 24,25 and downside reflecting component 28 can be one of the forming.
It should be noted, reflecting component 24 and the 23 adjacent settings of second image unit, reflecting component 24 has summit 241.The wall 27 that is in the light comprises support portion 271 and light-blocking part 272, and in the present embodiment, support portion 271 is connected with light-blocking part 272 and becomes T shape form.The position is set can stops first image unit 22 and the secondary light source 26 formed first line L1 of light-blocking part 27, and the wall 27 that is in the light in addition can not stop that the summit 241 of reflecting component 24 and first image unit, the 22 formed second line L2 are to avoid influencing the normal running of optical touch module 20.
As seen from Figure 2, the be in the light top of light-blocking part 272 of wall 27 can be dropped in the zone between the first line L1 and the second line L2.As shown in Figure 2, being provided with of wall 27 of being in the light can guarantee can directly do not entered in second image unit 23 by the light that first light source 29 is launched, and still can light be reflected back in first image unit 22 by the reflecting component 24 of respective side by the light that first light source 29 is launched.Same, the light of being launched by secondary light source 26 can directly not enter in first image unit 22, and still can light be reflected back in second image unit 23 by the reflecting component 25 of respective side by the light that secondary light source 26 is launched.Because first, second light source 26,29 high lights that sent can not enter in first, second image unit 22,23 in direct projection, cause problems such as signal interpretation mistake and generation noise so can not produce excessive optical phenomenon.
Fig. 3 is along the sectional view of profile line 3-3 among Fig. 2.
Please arrange in pairs or groups and consult Fig. 2, Fig. 3, the corresponding setting of side that downside reflecting component 28 and first, second image unit 22,23 are provided with.Please refer to Fig. 3, downside reflecting component 28 is arranged on framework 21 with tilt angle alpha, makes downside reflecting component 28 be a dip plane.In one embodiment, the scope of tilt angle alpha is between the 3-10 degree.The downside reflecting component 28 that is the dip plane towards leaving away from contact panel 30 surface direction, through downside reflecting component 28 reflections after enters in first image unit 22 and the light avoiding by first light source 29 launched through downside reflecting component 28 reflections after enter in second image unit 23 with the light of avoiding being launched by secondary light source 26 in order to light reflection back that light source 26,29 is launched.See also the 2nd, 3 figure, when the light of being launched by secondary light source 26 by downside reflecting component 28 reflex times, because the reflecting surface of downside reflecting component 28 is the dip plane, so light slightly upwards reflects (promptly leaving the surface of contact panel 30) along the arrow C direction with angle beta, shown in the arrow of Fig. 3, therefore, the light of being launched by secondary light source 26 can not enter in first image unit 22 after reflection.Similarly, the light of being launched by first light source 29 can not enter in second image unit 23 after reflection yet.
In addition, present embodiment can comprise that also panel 282 is to strengthen fixedly downside reflecting component 28 and can promote attractive in appearance.As shown in Figure 3, panel 282 can be connected with framework 21 earlier, is connected with downside reflecting component 28 again, and promptly panel 282 is arranged between framework 21 and the downside reflecting component 28, so can strengthen fixedly downside reflecting component 28.
Fig. 4 is the synoptic diagram of another embodiment of reflecting component of the utility model optical touch module.Different with Fig. 3 is, downside reflecting component 28 is connected with framework 21 earlier, is connected with panel 282 again, and promptly downside reflecting component 28 is arranged between framework 21 and the panel 282, so can adopt the panel 282 of arranging in pairs or groups with framework 21 attractive in appearance to promote.Be noted that panel 282 is required to be light-transmitting materials, just can provide light to pass through to reflect behind the panel 282 and by downside reflecting component 28.
In sum, optical touch module 20 of the present utility model is located at first, second image unit 22,23, reflecting component 24,25, be in the light wall 27 and downside reflecting component 28 on the framework 21, when assembling or maintenance optical touch module 20, the probability that contact panel 30 damages be can reduce, production efficiency and cost promoted.
In addition, optical touch module 20 of the present utility model is provided with the wall 27 that is in the light on framework 21, can stop that second, first light source 26,29 directly enters in first, second image unit 22,23, effectively avoid first, second image unit 22,23 to be subjected to the interference of second, first light source 26,29, cause problems such as signal interpretation mistake and generation noise so can not produce excessive optical phenomenon.
At last, the downside reflecting component 28 that is inclination can will come from the light of second, first light source 26,29 to leave the direction refraction of panel surface, avoid the light portion reflection of second, first light source 26,29 to enter first, second image unit 22,23, make first, second image unit 22,23 be subjected to the interference of second, first light source 26,29, cause problems such as signal interpretation mistake and generation noise so can effectively avoid overflowing optical phenomenon.
The above only is a preferred embodiment of the present utility model, and when not limiting the scope that the utility model is implemented with this, promptly the simple equivalent of being done according to the utility model content generally changes and modifies, and all still belongs in the scope that the utility model patent contains.Arbitrary embodiment of the present utility model in addition or claim must not reached whole characteristics disclosed in the utility model.In addition, summary part and title only are the usefulness that is used for assisting the patent document retrieval, are not to be used for limiting interest field of the present utility model.
Claims (15)
1. an optical touch module is characterized in that, comprising:
One framework;
One first image unit is arranged on a primary importance of this framework;
One second image unit is arranged on the second place of this framework, adjacent this primary importance of this second place;
One first light source, with the adjacent setting of this first image unit, this first light source and this second image unit form one first line;
One secondary light source is with the adjacent setting of this second image unit;
One first reflecting component is arranged on a first side of this framework, and this first side is adjacent with this first image unit, and this first reflecting component comprises a summit, and this summit and this second image unit form one second line; And
One wall that is in the light, this wall that is in the light stops this first line, and this wall that is in the light can not stop this second line.
2. optical touch module according to claim 1 is characterized in that, also comprises one second reflecting piece, and this second reflecting piece is arranged on a second side of this framework, and this second side is adjacent with this first side.
3. optical touch module according to claim 2 is characterized in that, this second reflecting piece is arranged on this second side with an angle of inclination.
4. optical touch module according to claim 3 is characterized in that the scope at this angle of inclination is between the 3-10 degree.
5. optical touch module according to claim 1 is characterized in that, this wall that is in the light comprises a support portion and a light-blocking part, and this support portion is connected with this light-blocking part and becomes T shape form.
6. optical touch module according to claim 2 is characterized in that, comprises a panel respectively between this first reflecting piece and this second reflecting piece and this framework.
7. optical touch module according to claim 2 is characterized in that, this first reflecting piece and this second reflecting piece is separately positioned on and this framework and a panel between.
8. optical touch module according to claim 6 is characterized in that, this panel is a light-transmitting materials.
9. optical touch module according to claim 1 is characterized in that, this first light source and this secondary light source comprise light emitting diode.
10. optical touch module according to claim 3 is characterized in that, this wall that is in the light comprises a support portion and a light-blocking part, and this support portion is connected with this light-blocking part and becomes T shape form.
11. optical touch module according to claim 10 is characterized in that, comprises a panel respectively between this first reflecting piece and this second reflecting piece and this framework.
12. optical touch module according to claim 10 is characterized in that, this first reflecting piece and this second reflecting piece is separately positioned on and this framework and a panel between.
13. optical touch module according to claim 12 is characterized in that, this panel is a light-transmitting materials.
14. optical touch module according to claim 13 is characterized in that, this first light source and this secondary light source comprise light emitting diode.
15. optical touch module according to claim 14 is characterized in that the scope at this angle of inclination is between the 3-10 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201565437U CN201440255U (en) | 2009-07-01 | 2009-07-01 | Optical contact control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201565437U CN201440255U (en) | 2009-07-01 | 2009-07-01 | Optical contact control module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201440255U true CN201440255U (en) | 2010-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201565437U Expired - Lifetime CN201440255U (en) | 2009-07-01 | 2009-07-01 | Optical contact control module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201440255U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235981A (en) * | 2010-04-28 | 2011-11-09 | 宏碁股份有限公司 | Optical touch sensing system, optical touch screen system and dust detecting method |
| CN102262483A (en) * | 2010-05-24 | 2011-11-30 | 北京汇冠新技术股份有限公司 | Touch screen calibrating method and device, touch screen, touch system and display |
| CN103135856A (en) * | 2011-12-05 | 2013-06-05 | 纬创资通股份有限公司 | Optical touch device and frame thereof |
| CN103631447A (en) * | 2012-08-26 | 2014-03-12 | 钛积光电(厦门)有限公司 | Optical touch device and frame module thereof |
| CN105045419A (en) * | 2014-04-22 | 2015-11-11 | Lg电子株式会社 | Display apparatus for vehicle |
-
2009
- 2009-07-01 CN CN2009201565437U patent/CN201440255U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235981A (en) * | 2010-04-28 | 2011-11-09 | 宏碁股份有限公司 | Optical touch sensing system, optical touch screen system and dust detecting method |
| CN102262483A (en) * | 2010-05-24 | 2011-11-30 | 北京汇冠新技术股份有限公司 | Touch screen calibrating method and device, touch screen, touch system and display |
| WO2011147301A1 (en) * | 2010-05-24 | 2011-12-01 | 北京汇冠新技术股份有限公司 | Touch screen calibration method and apparatus, touch screen, touch system, and display |
| CN102262483B (en) * | 2010-05-24 | 2014-06-04 | 北京汇冠新技术股份有限公司 | Touch screen calibrating method and device, touch screen, touch system and display |
| CN103135856A (en) * | 2011-12-05 | 2013-06-05 | 纬创资通股份有限公司 | Optical touch device and frame thereof |
| CN103631447A (en) * | 2012-08-26 | 2014-03-12 | 钛积光电(厦门)有限公司 | Optical touch device and frame module thereof |
| CN105045419A (en) * | 2014-04-22 | 2015-11-11 | Lg电子株式会社 | Display apparatus for vehicle |
| US9864469B2 (en) | 2014-04-22 | 2018-01-09 | Lg Electronics Inc. | Display apparatus for a vehicle |
| CN105045419B (en) * | 2014-04-22 | 2019-06-11 | Lg电子株式会社 | The display equipment of vehicle |
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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: 20100421 |