CN205427810U - Infrared touch -screen - Google Patents
Infrared touch -screen Download PDFInfo
- Publication number
- CN205427810U CN205427810U CN201521085253.XU CN201521085253U CN205427810U CN 205427810 U CN205427810 U CN 205427810U CN 201521085253 U CN201521085253 U CN 201521085253U CN 205427810 U CN205427810 U CN 205427810U
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- Prior art keywords
- infrared
- receiving tube
- circuit
- transmitting tube
- tube
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Abstract
The utility model discloses an infrared touch -screen, including LCD screen, frame, control circuit, infrared transmitting tubes and infrared receiving tube, the frame includes end to end's topside, right side limit, base and left side limit in proper order, wherein, the infrared transmitting tubes equidistance is arranged on frame arbitrary adjacent both sides, the infrared receiving tube equidistance is arranged on the other both sides of frame, infrared transmitting tubes and infrared receiving tube set up in opposite directions, a infrared transmitting tubes corresponds the infrared receiving tube of a plurality of continuous settings, infrared transmitting tubes is to the infrared receiving tube transmission infrared ray that corresponds. Adopt the utility model discloses, infrared transmitting tubes and infrared receiving tube adopt super large -space to arrange, can effectively save manufacturing cost.
Description
Technical field
This utility model relates to technical field of touch control, particularly relates to a kind of infrared touch panel.
Background technology
Infrared technology touch screen (InfraredTouchScreenTechnology), it is made up of with infrared receiver the infrared emission unit being contained on touch screen housing, in screen surface, forming the infra-red detection net anyhow intersected, any touching object can change the infrared ray on contact and realize touch screen operation.
At present, infrared emission unit on touch screen housing and infrared receiver are all made up of infrared discharge lamps and the seamless arrangement of infrared receiver lamp, judge to need during touch point to turn on successively the infrared receiver lamp of all infrared discharge lamps and correspondence thereof, and gather the signal of all infrared receiver lamps as the foundation calculating touch point coordinate, but, such scheme cost is high, and differentiates that touch point speed is slow, and the touch point coordinate accuracy of identification is relatively low.
Summary of the invention
Technical problem to be solved in the utility model is, it is provided that the infrared touch panel of a kind of simple in construction, makes emission pipe and infrared receiving tube use the arrangement of super large spacing, can effectively save production cost.
In order to solve above-mentioned technical problem, this utility model provides a kind of infrared touch panel, including liquid crystal display screen, housing, control circuit, infrared transmitting tube and infrared receiving tube, described housing includes the most end to end top margin, right edge, base and left side, it is characterized in that, described infrared transmitting tube equidistant arrangement is on the both sides of housing arbitrary neighborhood, and described infrared receiving tube equidistant arrangement is on the other both sides of housing, and described infrared transmitting tube is oppositely arranged with infrared receiving tube；The infrared receiving tube of one corresponding multiple continuous setting of infrared transmitting tube, described infrared transmitting tube launches infrared ray to corresponding infrared receiving tube.
As the improvement of such scheme, the distance between each infrared transmitting tube is 3 ~ 6mm, and the distance between each infrared receiving tube is 3 ~ 6mm.
Improvement as such scheme, described control circuit includes microcontroller, radiating circuit and receives circuit, described microcontroller is respectively connected with described radiating circuit and reception circuit, and described radiating circuit is connected with infrared transmitting tube, and described reception circuit is connected with infrared receiving tube.
As the improvement of such scheme, the model of described microcontroller is STM32.
Improvement as such scheme, described infrared touch panel also includes the printed circuit board (PCB) for encapsulating described control circuit, infrared transmitting tube and infrared receiving tube, and described control circuit, infrared transmitting tube and infrared receiving tube are fixed on described housing by described printed circuit board (PCB).
As the improvement of such scheme, described printed circuit board (PCB) includes main circuit lamp plate, radiating circuit lamp plate and receives circuit lamp plate.
As the improvement of such scheme, described microcontroller, radiating circuit and infrared transmitting tube are respectively arranged on described main circuit lamp plate.
As the improvement of such scheme, described radiating circuit and infrared transmitting tube are respectively arranged on described radiating circuit lamp plate.
As the improvement of such scheme, described reception circuit and infrared receiving tube are respectively arranged on described reception circuit lamp plate.
As the improvement of such scheme, the infrared receiving tube of corresponding at least nine the continuous settings of infrared transmitting tube.
Implement the beneficial effects of the utility model to be: infrared touch panel mid-infrared transmitting tube of the present utility model and infrared receiving tube use the arrangement of big spacing, the quantity making infrared transmitting tube and infrared receiving tube significantly reduces, greatly slow down the design of PCB lamp board, structure is simpler, can effectively save production cost, and not affect the use of client.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model infrared touch panel；
Fig. 2 is the circuit theory diagrams of this utility model infrared touch panel；
Fig. 3 is the structural representation of main circuit lamp plate in this utility model；
Fig. 4 is the structural representation of radiating circuit lamp plate in this utility model；
Fig. 5 is the structural representation receiving circuit lamp plate in this utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, this utility model is described in further detail.Only this statement, the present invention occur in the text or i.e. will appear from up, down, left, right, before and after, the orientation word such as inside and outside, only on the basis of the accompanying drawing of the present invention, it is not the concrete restriction to the present invention.
See Fig. 1, Fig. 1 shows the structural representation of this utility model infrared touch panel, described infrared touch panel includes liquid crystal display screen, housing, control circuit, infrared transmitting tube 2a and infrared receiving tube 2b, described housing includes the most end to end top margin 1a, right edge 1b, base 1c and left side 1d, wherein, described infrared transmitting tube 2a equidistant arrangement is on the both sides of housing arbitrary neighborhood, described infrared receiving tube 2b equidistant arrangement is on the other both sides of housing, and described infrared transmitting tube 2a is oppositely arranged with infrared receiving tube 2b；The infrared receiving tube 2b, described infrared transmitting tube 2a of one corresponding multiple continuous setting of infrared transmitting tube 2a launch infrared ray to corresponding infrared receiving tube 2b.
Such as, infrared transmitting tube 2a equidistant arrangement is on left side 1d and top margin 1a, and infrared receiving tube 2b equidistant arrangement is in right edge 1b and base 1c；Or, infrared transmitting tube 2a equidistant arrangement is in right edge 1b and top margin 1a, and infrared receiving tube 2b equidistant arrangement is on left side 1d and base 1c；Or, infrared transmitting tube 2a equidistant arrangement is in right edge 1b and base 1c, and infrared receiving tube 2b equidistant arrangement is on left side 1d and top margin 1a；Or, infrared transmitting tube 2a equidistant arrangement is on left side 1d and base 1c, and infrared receiving tube 2b equidistant arrangement is in right edge 1b and top margin 1a.
Seeing Fig. 1, in Fig. 1, white represents infrared transmitting tube 2a, and black represents infrared receiving tube 2b.Compared with prior art, the infrared touch panel of the present invention includes independent control circuit, one group of high accuracy, jamproof infrared transmitting tube 2a and infrared receiving tube 2b, described infrared transmitting tube 2a and infrared receiving tube 2b is oppositely arranged, and forms a sightless infrared net；Meanwhile, infrared transmitting tube 2a and infrared receiving tube 2b is not seamless arrangement, but uses the arrangement of super large spacing, makes the quantity of infrared transmitting tube 2a and infrared receiving tube 2b significantly reduce, can effectively save production cost.
Distance between each infrared transmitting tube 2a is 3 ~ 6mm, and the distance between each infrared receiving tube 2b is 3 ~ 6mm, but is not limited system.Under regular situation, a diameter of 5 ~ 10mm of touching object, therefore set spacing between each infrared transmitting tube 2a and between each infrared receiving tube 2b as 3 ~ 6mm, it can be ensured that touching object can be recognized.Distance between each infrared transmitting tube 2a is preferably 5mm, and the distance between each infrared receiving tube 2b is preferably 5mm.
The infrared receiving tube 2b of one corresponding at least nine continuous setting of infrared transmitting tube 2a, but it is not limited system.Owing to the energy of infrared transmitting tube 2a gradually weakens along with the increase of angle, therefore the present invention uses the mode of corresponding nine the infrared receiving tube 2b of an infrared transmitting tube 2a, it is ensured that each infrared receiving tube 2b can receive effective energy value.
As shown in Figure 2, described control circuit includes microcontroller 3c, radiating circuit 3a and receives circuit 3b, described microcontroller 3c and described radiating circuit 3a and reception circuit 3b is respectively connected with, and described radiating circuit 3a is connected with infrared transmitting tube 2a, and described reception circuit 3b is connected with infrared receiving tube 2b.Preferably, the model of described microcontroller 3c is STM32, but is not limited system.
When infrared touch panel works, microcontroller 3c control radiating circuit 3a in turn switches on infrared transmitting tube 2a and carries out vertical scanning, and addresses corresponding infrared receiving tube 2b by address wire and data wire simultaneously.When there being touch, finger or other object then can block the infrared ray anyhow through this position, during microcontroller 3c scanography, can detect that the infrared ray being obstructed is to obtain position in liquid crystal display screen, the touch point.Then, radiating circuit 3a utilizes shift register and connects terminal realization cascade, allows microcontroller 3c drive more infrared transmitting tube 2a to carry out oblique scanning, and microcontroller 3c controls the switch of infrared transmitting tube 2a by the address wire controlling radiating circuit 3a simultaneously.When infrared transmitting tube 2a is lit, microcontroller 3c addresses the infrared receiving tube 2b corresponding with infrared transmitting tube 2a by address wire, and the infrared light flux received is amplified by receiving the amplifier in circuit 3b, and send microcontroller 3c process to by data wire, thus determine whether to touch generation.
Further, described infrared touch panel also includes that described control circuit, infrared transmitting tube 2a and infrared receiving tube 2b are fixed on described housing by described printed circuit board (PCB) for encapsulating described control circuit, infrared transmitting tube 2a and the printed circuit board (PCB) of infrared receiving tube 2b.
It should be noted that, in this utility model, the arrangement of super large spacing is used between infrared transmitting tube 2a and infrared receiving tube 2b, spacing is preferably 5mm, and the package width of each infrared transmitting tube 2a and infrared receiving tube b is about 5mm, that is this utility model have employed the PCB(PrintedCircuitBoard printed circuit board (PCB) every lamp) lamp plate design, required infrared transmitting tube 2a and the quantity of infrared receiving tube 2b all can reduce half, reduce cost.
As shown in Fig. 3 ~ 5, described printed circuit board (PCB) includes main circuit lamp plate 4c, radiating circuit lamp plate 4a and receives circuit lamp plate 4b, is mutually inserted by connection terminal between described main circuit lamp plate 4c, radiating circuit lamp plate 4a and reception circuit lamp plate 4b.
Seeing Fig. 3, described microcontroller 3c, radiating circuit 3a and infrared transmitting tube 2a are respectively arranged on described main circuit lamp plate 4c.Described infrared transmitting tube 2a is equidistantly welded on described main circuit lamp plate 4c.
See Fig. 4, described radiating circuit 3a and infrared transmitting tube 2a to be respectively arranged on described radiating circuit lamp plate 4a.Described infrared transmitting tube 2a is equidistantly welded on described transtation mission circuit lamp plate 4a.
See Fig. 5, described reception circuit 3b and infrared receiving tube 2b to be respectively arranged on described reception circuit lamp plate 4b.Described infrared receiving tube 2b equidistant arrangement is on described reception circuit lamp plate 4b, described reception circuit lamp plate 4b totally two, one is oppositely arranged with main circuit lamp plate 4c, another is oppositely arranged with transtation mission circuit lamp plate 4a, and the arrangement pitches of described infrared transmitting tube 2a is equal with the arrangement pitches of infrared receiving tube 2b.
As from the foregoing, infrared touch panel mid-infrared transmitting tube 2a and infrared receiving tube 2b of the present utility model is not seamless arrangement, but use the arrangement of super large spacing, the quantity making infrared transmitting tube 2a and infrared receiving tube 2b significantly reduces, greatly slow down the design of PCB lamp board, structure is simpler, can effectively save production cost, and not affect the use of client.
The above is preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (10)
1. an infrared touch panel, including liquid crystal display screen, housing, control circuit, infrared transmitting tube and infrared receiving tube, described housing includes the most end to end top margin, right edge, base and left side, it is characterized in that, described infrared transmitting tube equidistant arrangement is on the both sides of housing arbitrary neighborhood, described infrared receiving tube equidistant arrangement is on the other both sides of housing, and described infrared transmitting tube is oppositely arranged with infrared receiving tube；
The infrared receiving tube of one corresponding multiple continuous setting of infrared transmitting tube, described infrared transmitting tube launches infrared ray to corresponding infrared receiving tube.
2. infrared touch panel as claimed in claim 1, it is characterised in that the distance between each infrared transmitting tube is 3 ~ 6mm, and the distance between each infrared receiving tube is 3 ~ 6mm.
3. infrared touch panel as claimed in claim 1, it is characterized in that, described control circuit includes microcontroller, radiating circuit and receives circuit, described microcontroller is respectively connected with described radiating circuit and reception circuit, described radiating circuit is connected with infrared transmitting tube, and described reception circuit is connected with infrared receiving tube.
4. infrared touch panel as claimed in claim 3, it is characterised in that the model of described microcontroller is STM32.
5. infrared touch panel as claimed in claim 3, it is characterized in that, described infrared touch panel also includes the printed circuit board (PCB) for encapsulating described control circuit, infrared transmitting tube and infrared receiving tube, and described control circuit, infrared transmitting tube and infrared receiving tube are fixed on described housing by described printed circuit board (PCB).
6. infrared touch panel as claimed in claim 5, it is characterised in that described printed circuit board (PCB) includes main circuit lamp plate, radiating circuit lamp plate and receives circuit lamp plate.
7. infrared touch panel as claimed in claim 6, it is characterised in that described microcontroller, radiating circuit and infrared transmitting tube are respectively arranged on described main circuit lamp plate.
8. infrared touch panel as claimed in claim 6, it is characterised in that described radiating circuit and infrared transmitting tube are respectively arranged on described radiating circuit lamp plate.
9. infrared touch panel as claimed in claim 6, it is characterised in that described reception circuit and infrared receiving tube are respectively arranged on described reception circuit lamp plate.
10. infrared touch panel as claimed in claim 1, it is characterised in that the infrared receiving tube of corresponding at least nine the continuous settings of infrared transmitting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521085253.XU CN205427810U (en) | 2015-12-24 | 2015-12-24 | Infrared touch -screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521085253.XU CN205427810U (en) | 2015-12-24 | 2015-12-24 | Infrared touch -screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205427810U true CN205427810U (en) | 2016-08-03 |
Family
ID=56538814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521085253.XU Expired - Fee Related CN205427810U (en) | 2015-12-24 | 2015-12-24 | Infrared touch -screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205427810U (en) |
-
2015
- 2015-12-24 CN CN201521085253.XU patent/CN205427810U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160803 Termination date: 20161224 |