CN201628778U - Infrared filter strip of infrared touch screen and infrared touch screen - Google Patents
Infrared filter strip of infrared touch screen and infrared touch screen Download PDFInfo
- Publication number
- CN201628778U CN201628778U CN201020151087XU CN201020151087U CN201628778U CN 201628778 U CN201628778 U CN 201628778U CN 201020151087X U CN201020151087X U CN 201020151087XU CN 201020151087 U CN201020151087 U CN 201020151087U CN 201628778 U CN201628778 U CN 201628778U
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- infrared
- filter
- transparency carrier
- striation
- touch panel
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Abstract
The utility model relates to an infrared filter strip of an infrared touch screen and an infrared touch screen. The infrared filter strip of an infrared touch screen is arranged in a light transmission window in front of an infrared receiving tube. The infrared filter strip comprises a transparent substrate and a filter plate or a filter film, wherein the transparent substrate is arranged in the light transmission window in front of the infrared receiving tube; the filter plate or the filter film is arranged on the transparent substrate. The utility model also provides an infrared touch screen. The infrared touch screen comprises an infrared touch screen framework, a circuit board, an infrared transmitting tube or infrared receiving tube and an infrared filter strip, wherein the circuit board is received in the infrared touch screen framework, the infrared transmitting tube or the infrared receiving tube is arranged on the circuit board, and the infrared filter strip is arranged in the light transmission window in front of the infrared receiving tube. The utility model can reduce the production cost of filter plates and further reduce the production cost of infrared touch screens, particularly the production cost of large infrared touch screens.
Description
Technical field
The utility model relates to field of photoelectric technology, relates in particular to a kind of infrared absorption filter striation, infrared touch panel that is used for infrared touch panel.
Background technology
Common infrared touch panel generally is made of the infrared tube array that is installed in the touch-screen framework, this infrared tube array comprises infrared transmitting tube and infrared receiving tube, and infrared transmitting tube is relative with infrared receiving tube, makes infrared receiving tube can receive the infrared light of corresponding infrared transmitting tube emission.When having touch objects in touching detection zone, infrared receiving tube can not receive the light of infrared transmitting tube emission, at this moment, just can determine the positional information of touch objects according to the positional information of the infrared receiving tube that can not receive infrared light.
In the prior art,, strengthen the anti-interference of infrared touch panel in order to reduce the interference of surround lighting as far as possible, one side of infrared touch panel framework offers an optical transmission window, one rectangular optical filter is installed on this optical transmission window, and this optical filter can see through infrared light, filters out other surround lightings simultaneously.This optical filter adopts injection moulding or casting technique to make by add coloring agent in starting material usually then.This optical filter can be divided into two kinds: high-pass filter and narrow-band pass filter, and high-pass filter can see through the light of wavelength greater than 850nm or 940nm, and narrow-band pass filter can see through the light of wavelength coverage at 925nm-955nm.
The inventor finds in research process of the present utility model: owing to a rectangular optical filter need be installed in the optical transmission window, therefore the thickness of this optical filter could make the optical filter that is installed in the optical transmission window be not easy distortion greatly, but the optical filter that thickness is bigger will cause the production cost of infrared touch panel higher, especially for the large scale infrared touch panel, need to use a large amount of optical filters, production cost is higher.
The utility model content
The utility model provides a kind of infrared absorption filter striation, infrared touch panel that is used for infrared touch panel, in order to realize reducing the production cost of infrared touch panel.
The utility model provides a kind of infrared absorption filter striation that is used for infrared touch panel, and described infrared absorption filter striation is installed in the optical transmission window of infrared receiving tube front, and described infrared absorption filter striation comprises:
Transparency carrier is installed in the optical transmission window of described infrared receiving tube front;
Optical filter or filter coating are positioned on the described transparency carrier.
The utility model also provides a kind of infrared touch panel, comprise the infrared touch panel framework, be contained in the circuit board in the infrared touch panel framework, the interior infrared absorption filter striation of optical transmission window that is installed in infrared transmitting tube or the infrared receiving tube on the described circuit board and is installed in described infrared receiving tube front, described infrared absorption filter striation comprises:
Transparency carrier is installed in the optical transmission window of described infrared receiving tube front;
Optical filter or filter coating are positioned on the described transparency carrier.
In the utility model; under the protection of transparency carrier; optical filter is not easy distortion; therefore can reduce the thickness of optical filter; even can adopt the filter coating of thinner thickness; thereby reduced the production cost of optical filter, also reduced the production cost of infrared touch panel further, especially reduced the production cost of large scale infrared touch panel.
Description of drawings
Fig. 1 is used for a kind of longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel for the utility model;
Fig. 2 is used for the another kind of longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel for the utility model;
Fig. 3 is used for another longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel for the utility model;
Fig. 4 is used for a kind of cross sectional representation of the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel for the utility model;
Fig. 5 is used for a kind of longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation shown in Figure 4 of infrared touch panel for the utility model;
Fig. 6 is used for the another kind of longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation shown in Figure 4 of infrared touch panel for the utility model;
Fig. 7 is used for the another kind of cross sectional representation of the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel for the utility model;
Fig. 8 is the structural representation of infrared touch panel among the utility model infrared touch panel embodiment;
Fig. 9 is the cross sectional representation of the frame that infrared receiving tube is installed of infrared touch panel shown in Figure 8 among the utility model infrared touch panel embodiment;
Figure 10 is the longitudinal section synoptic diagram of the frame that infrared receiving tube is installed of infrared touch panel shown in Figure 8 among the utility model infrared touch panel embodiment.
Embodiment
The utility model will be further described below in conjunction with specification drawings and specific embodiments.
The infrared absorption filter striation embodiment that is used for infrared touch panel
In the present embodiment, the infrared absorption filter striation can be installed in the optical transmission window of infrared receiving tube front.This infrared absorption filter striation can comprise transparency carrier and optical filter or filter coating, and optical filter or filter coating can see through infrared light and block visible light.Wherein, transparency carrier is installed in the optical transmission window of infrared receiving tube front, and optical filter or filter coating are positioned on the transparency carrier.
In the present embodiment; under the protection of transparency carrier; optical filter is not easy distortion; therefore can reduce the thickness of optical filter; even can adopt the filter coating of thinner thickness; thereby reduced the production cost of optical filter, also reduced the production cost of infrared touch panel further, especially reduced the production cost of large scale infrared touch panel.
In addition, transparency carrier can be directly installed in the optical transmission window of infrared receiving tube front, therefore, and can be compatible mutually with infrared touch panel framework of the prior art.
In the present embodiment, filter coating can directly be plated on the transparency carrier.Particularly, filter coating can be plated on the side adjacent with infrared receiving tube of transparency carrier, also can be plated in transparency carrier near on the side that touches detection zone, perhaps be plated on the side adjacent of transparency carrier and near on the side that touches detection zone with infrared receiving tube.In addition, as shown in Figure 1, for the utility model is used for a kind of longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel, filter coating 10 can be plated on the whole side of a side of transparency carrier 11.As shown in Figure 2, the another kind of longitudinal section synoptic diagram that is used for the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel for the utility model, in order to reduce the use amount of filter coating 10, filter coating 10 also can be plated on the part side of a side of transparency carrier 11, and this part side is relative with infrared receiving tube.
In the present embodiment, optical filter can be the optical filter of making by injection moulding or casting technique of the prior art, also can be the plated film optical filter.Wherein, the plated film optical filter comprises dianegative and one deck filter coating that is plated on the dianegative, and this dianegative can be transparent materials such as glass, resin or plastics.Optical filter can be positioned on the side adjacent with infrared receiving tube of transparency carrier, also can be positioned at transparency carrier near on the side that touches detection zone, perhaps be positioned on the side adjacent of transparency carrier and near on the side that touches detection zone with infrared receiving tube.
Optical filter can be installed on the transparency carrier by following dual mode:
First kind of mode: as shown in Figure 3, for the utility model is used for another longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel, optical filter 12 directly is bonded on the transparency carrier 11.Preferably, in order to reduce the use amount of optical filter 12, optical filter 12 can be bonded on the part side of a side of transparency carrier 11, and this part side is relative with infrared receiving tube.Alternatively, optical filter 12 can also be bonded on the whole side of a side of transparency carrier 11.
The second way: as shown in Figure 4, a kind of cross sectional representation that is used for the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel for the utility model, transparency carrier 11 is provided with the T shape projection 111 of outside protrusion, the intermediate projections of T shape projection 111 links to each other with transparency carrier 11, T shape projection 111 is divided into several sections with transparency carrier 11, every section transparency carrier 11 is relative with an infrared receiving tube, and optical filter 12 is fastened between two adjacent T shape projectioies 111.As shown in Figure 5, for the utility model is used for a kind of longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation shown in Figure 4 of infrared touch panel, T shape projection 111 surrounds an edge of optical filter 12 fully.As shown in Figure 6, for the utility model is used for the another kind of longitudinal section synoptic diagram of the infrared absorption filter striation embodiment infrared absorption filter striation shown in Figure 4 of infrared touch panel, T shape projection 111 surrounds the part edge at an edge of optical filter 12.
As shown in Figure 7, the another kind of cross sectional representation that is used for the infrared absorption filter striation embodiment infrared absorption filter striation of infrared touch panel for the utility model, for more attractive in appearance, the T shape that the shape of the xsect of optical filter 12 can adapt for the T-slot that forms with adjacent two T shapes projection 111, when optical filter 12 is fastened between two adjacent T shape projectioies 111, optical filter 12 equal with this surface of T shape projection 111 with contacted surface, the external world.
Adopt the infrared absorption filter striation of the second way, optical filter 12 directly is fastened on the transparency carrier 11, infrared absorption filter striation with respect to first kind of mode, do not need to use glue to be bonded on the transparency carrier 11, thereby eliminated the influence of glue, strengthened the filter effect of infrared absorption filter striation the filter effect of infrared absorption filter striation.In addition, adopt the infrared absorption filter striation of the second way, only optical filter 12 need be installed in the infrared receiving tube front, do not need to install optical filter in two alternate places of infrared receiving tube, thereby avoided in optical transmission window, installing a rectangular optical filter, save the use amount of optical filter, reduced the production cost of infrared touch panel, especially reduced the production cost of large scale infrared touch panel.
In addition, in the present embodiment, in order to reduce the production cost of optical filter 12, can reduce the thickness of optical filter 12, preferably, the thickness of optical filter 12 can be 0.02cm-1cm as far as possible.
In the present embodiment, when being plated in filter coating 10 on the transparency carrier 11, perhaps when making the plated film optical filter, can adopt various coating process such as silk-screen plated film or sputter coating.Adopt coating process, except can producing high-pass filter or filter coating and narrow-band pass filter or filter coating, can also produce the optical filter or the filter coating that can see through the light of ultraviolet band and filter out the light of its all band, and adopt injection moulding or casting technique can not produce this optical filter or the filter coating that can filter out the light of its all band through the light of ultraviolet band.
In the present embodiment, transparency carrier 11 is specifically as follows transparent materials such as glass, resin or plastics.
In addition, in the present embodiment, the infrared absorption filter striation can also be installed in the optical transmission window of infrared transmitting tube front.
Infrared touch panel embodiment
As shown in Figure 8, structural representation for infrared touch panel among the utility model infrared touch panel embodiment, infrared touch panel framework 31 be can comprise, be contained in circuit board in the infrared touch panel framework 31, infrared transmitting tube 35 or infrared receiving tube 33 on the circuit board are installed in, and the interior infrared absorption filter striation of optical transmission window that is installed in infrared receiving tube 33 fronts, wherein, infrared transmitting tube 35 and infrared receiving tube 33 relative installations and corresponding one by one.
As shown in Figure 9, cross sectional representation for the frame that infrared receiving tube is installed of infrared touch panel shown in Figure 8 among the utility model infrared touch panel embodiment, as shown in figure 10, longitudinal section synoptic diagram for the frame that infrared receiving tube is installed of infrared touch panel shown in Figure 8 among the utility model infrared touch panel embodiment, can comprise infrared touch panel framework 31, be contained in the circuit board 32 in the infrared touch panel framework 31, be installed in the infrared receiving tube 33 on the circuit board 32, and the interior infrared absorption filter striation 34 of optical transmission window that is installed in infrared receiving tube 33 fronts.
Wherein, infrared absorption filter striation 34 can comprise transparency carrier and optical filter or filter coating, and optical filter or filter coating can see through infrared light and block visible light.Wherein, transparency carrier is installed in the optical transmission window of infrared receiving tube front, and optical filter or filter coating are positioned on the transparency carrier.
In the present embodiment; under the protection of transparency carrier; optical filter is not easy distortion; therefore can reduce the thickness of optical filter; even can adopt the filter coating of thinner thickness; thereby reduced the production cost of optical filter, also reduced the production cost of infrared touch panel further, especially reduced the production cost of large scale infrared touch panel.
The concrete structure of infrared absorption filter striation 34 can not repeat them here referring to a last embodiment.
In addition, in the present embodiment, infrared absorption filter striation 34 can also be installed in the optical transmission window of infrared transmitting tube 35 fronts.
Technical scheme described in the utility model is not limited to the embodiment described in the embodiment.Those skilled in the art draw other embodiment according to the technical solution of the utility model, belong to technological innovation scope of the present utility model equally.
Claims (12)
1. infrared absorption filter striation that is used for infrared touch panel, described infrared absorption filter striation is installed in the optical transmission window of infrared receiving tube front, it is characterized in that, and described infrared absorption filter striation comprises:
Transparency carrier is installed in the optical transmission window of described infrared receiving tube front;
Optical filter or filter coating are positioned on the described transparency carrier.
2. infrared absorption filter striation according to claim 1 is characterized in that, the thickness of described optical filter is 0.02cm-1cm.
3. infrared absorption filter striation according to claim 1 is characterized in that described filter coating is specially silk-screen film or sputtered film.
4. infrared absorption filter striation according to claim 1 and 2, it is characterized in that, described transparency carrier is provided with T shape projection, the intermediate projections of described T shape projection links to each other with described transparency carrier, described T shape projection is divided into several sections with described transparency carrier, every section transparency carrier is relative with an infrared receiving tube, and described optical filter is fastened between two adjacent T shape projectioies.
5. infrared absorption filter striation according to claim 1 and 2 is characterized in that described optical filter is bonded on the described transparency carrier.
6. infrared absorption filter striation according to claim 1 and 2 is characterized in that, described infrared absorption filter striation also is installed in the optical transmission window of infrared transmitting tube front.
7. infrared touch panel, comprise the infrared touch panel framework, be contained in the circuit board in the infrared touch panel framework, the interior infrared absorption filter striation of optical transmission window that is installed in infrared transmitting tube or the infrared receiving tube on the described circuit board and is installed in described infrared receiving tube front, it is characterized in that described infrared absorption filter striation comprises:
Transparency carrier is installed in the optical transmission window of described infrared receiving tube front;
Optical filter or filter coating are positioned on the described transparency carrier.
8. infrared touch panel according to claim 7 is characterized in that, the thickness of described optical filter is 0.02cm-1cm.
9. infrared touch panel according to claim 7 is characterized in that described filter coating is specially silk-screen film or sputtered film.
10. according to claim 7 or 8 described infrared touch panels, it is characterized in that, described transparency carrier is provided with T shape projection, the intermediate projections of described T shape projection links to each other with described transparency carrier, described T shape projection is divided into several sections with described transparency carrier, every section transparency carrier is relative with an infrared receiving tube, and described optical filter is fastened between two adjacent T shape projectioies.
11., it is characterized in that described optical filter is bonded on the described transparency carrier according to claim 7 or 8 described infrared touch panels.
12., it is characterized in that described infrared absorption filter striation also is installed in the optical transmission window of described infrared transmitting tube front according to claim 7 or 8 described infrared touch panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020151087XU CN201628778U (en) | 2010-04-01 | 2010-04-01 | Infrared filter strip of infrared touch screen and infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020151087XU CN201628778U (en) | 2010-04-01 | 2010-04-01 | Infrared filter strip of infrared touch screen and infrared touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201628778U true CN201628778U (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020151087XU Expired - Fee Related CN201628778U (en) | 2010-04-01 | 2010-04-01 | Infrared filter strip of infrared touch screen and infrared touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201628778U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467299A (en) * | 2010-11-15 | 2012-05-23 | 北京汇冠新技术股份有限公司 | Infrared touch screen and encapsulation method of filter strip |
| CN102917488A (en) * | 2011-08-03 | 2013-02-06 | 亿广科技(上海)有限公司 | Lighting device |
| CN102945100A (en) * | 2012-06-29 | 2013-02-27 | 北京汇冠新技术股份有限公司 | Infrared touch screen |
| CN108667968A (en) * | 2018-05-16 | 2018-10-16 | 维沃移动通信有限公司 | A kind of display module and mobile terminal |
-
2010
- 2010-04-01 CN CN201020151087XU patent/CN201628778U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467299A (en) * | 2010-11-15 | 2012-05-23 | 北京汇冠新技术股份有限公司 | Infrared touch screen and encapsulation method of filter strip |
| CN102467299B (en) * | 2010-11-15 | 2015-10-14 | 北京汇冠新技术股份有限公司 | The method for packing of a kind of infrared touch panel and optical filtering bar thereof |
| CN102917488A (en) * | 2011-08-03 | 2013-02-06 | 亿广科技(上海)有限公司 | Lighting device |
| CN102945100A (en) * | 2012-06-29 | 2013-02-27 | 北京汇冠新技术股份有限公司 | Infrared touch screen |
| WO2014000511A1 (en) * | 2012-06-29 | 2014-01-03 | 北京汇冠新技术股份有限公司 | Infrared touchscreen |
| CN108667968A (en) * | 2018-05-16 | 2018-10-16 | 维沃移动通信有限公司 | A kind of display module and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangzhou Hua Xin Electronic Science and Technology Co., Ltd. Assignor: Beijing UNITOP New Technology Co., Ltd. Contract record no.: 2014990000925 Denomination of utility model: Infrared filter strip of infrared touch screen and infrared touch screen Granted publication date: 20101110 License type: Common License Record date: 20141212 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Guangzhou Hua Xin Electronic Science and Technology Co., Ltd. Assignor: Beijing UNITOP New Technology Co., Ltd. Contract record no.: 2014990000925 Date of cancellation: 20160831 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing UNITOP New Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing UNITOP New Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20180401 |