CN114115611A - Trilateral infrared touch screen - Google Patents
Trilateral infrared touch screen Download PDFInfo
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- CN114115611A CN114115611A CN202111459018.4A CN202111459018A CN114115611A CN 114115611 A CN114115611 A CN 114115611A CN 202111459018 A CN202111459018 A CN 202111459018A CN 114115611 A CN114115611 A CN 114115611A
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- 230000006698 induction Effects 0.000 claims description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims 5
- 230000001681 protective effect Effects 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 12
- 230000003287 optical effect Effects 0.000 abstract description 5
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a trilateral infrared touch screen which comprises a display screen and a protective frame wrapping the outer side of the display screen, wherein infrared transmitting tubes and infrared receiving tubes are respectively arranged on two opposite frame edges on the protective frame at equal intervals, the infrared transmitting tubes and the infrared receiving tubes are mutually arranged in an aligned mode, and an outward extending expansion part is arranged on one frame edge of the protective frame between the infrared transmitting tubes and the infrared receiving tubes. The touch screen can transmit and receive infrared rays by utilizing three frame side parts of the touch screen to realize touch positioning, three-side infrared touch also generates a longitude and latitude staggered infrared optical network, and simultaneously, the interaction of the infrared detection tube and the infrared reflection part at the expansion part can sense the touch of a human body in advance when the touch screen is used, namely, the longitude and latitude staggered optical network can be shielded only by shielding incident light, so that a larger time interval is provided for the response of a processor, and a better quick response feeling is realized when a user uses the touch screen.
Description
Technical Field
The invention relates to the technical field of infrared touch screens, in particular to a three-edge infrared touch screen.
Background
The infrared ray technology touch screen is composed of infrared ray transmitting and receiving sensing elements arranged on a touch screen outer frame, an infrared ray detection network is formed on the surface of the screen, any touch object can change the infrared ray on a contact point to realize the touch screen operation, the realization principle of the infrared ray type touch screen is similar to that of the surface acoustic wave type touch screen, the infrared ray transmitting and receiving sensing elements are used, the elements form the infrared ray detection network on the surface of the screen, and the infrared ray of the contact point can be changed by an object (such as a finger) for touch operation, so that the infrared ray can be converted into a coordinate position for touch control to realize the response of the operation.
On infrared ray formula touch screen, the circuit board device that the four sides of screen were arranged has infrared transmitting tube and infrared receiving tube, corresponds and forms the infrared ray matrix of crossing anyhow, and when touching the thing, the touching thing can lead to the fact the light to shelter from, and in the region that is sheltered from, infrared receiving tube can not receive the infrared light or can only receive very weak infrared light, can fix a position the coordinate of touching the thing according to the signal sampling value of the infrared receiving tube of X direction and Y direction.
The existing infrared touch screen is generally provided with infrared tubes densely arranged on four frame edges and also provided with some bilateral infrared touch screens, namely, infrared transmitting tubes and/or infrared receiving tubes are arranged on two opposite edges of the touch frame, but the mode of densely arranging the infrared tubes on the four frame edges can lead the production cost of the infrared touch screen to be higher, particularly the infrared touch screen with larger size, and the bilateral touch screen has the defect of low precision.
Therefore, the three-edge infrared touch screen can be used for touch with high precision and meanwhile the response speed is increased.
Disclosure of Invention
The invention aims to provide a three-edge infrared touch screen to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a three-edge infrared touch screen comprises a display screen and a protective frame wrapped outside the display screen, the two opposite frame edges on the protective frame are respectively provided with an infrared transmitting tube and an infrared receiving tube at equal intervals, the infrared transmitting tube and the infrared receiving tube are arranged in alignment with each other, an extended part extending outwards is arranged on the frame edge at one side of the protective frame between the infrared transmitting tube and the infrared receiving tube, the top end of the outer side wall of the expansion part close to one side of the display screen is provided with infrared detecting tubes at equal intervals, the infrared detecting tubes are used for emitting infrared rays, infrared induction tubes are arranged on the frame edge of one side of the protection frame below the expansion part at equal intervals, the infrared induction tubes and the infrared exploring tubes are arranged in one-to-one alignment, the infrared reflection part is arranged on the frame edge of the protection frame at the symmetrical side of the expansion part, and the infrared induction tube receives the infrared light generated by the infrared detection tube after being reflected by the infrared reflection part for use.
The human body detector is arranged at the position of the expansion part at equal intervals and used for detecting that a human body is close to the display screen, and the human body detector has a distance measuring function.
Preferably, infrared reflection portion is including the reflection of light through-hole that equidistant arranged, reflection of light through-hole aligns each other with infrared induction pipe and infrared probe pipe and arranges, the inside upper and lower end of reflection of light through-hole all is equipped with the reflection of light face that is used for the reflection of light to use, and the reflection of light through-hole internally mounted between the upper and lower end reflection of light face has the condensing lens.
Preferably, the human body detectors are ultrasonic radar sensors, and the number of the human body detectors is not less than 3.
Preferably, the light reflecting surface is a gold mirror or a silver mirror.
Preferably, the infrared light gathering point gathered by the light gathering lens is on the reflecting surface at one side of the bottom end inside the reflecting through hole, and the infrared light reflected by the reflecting surface at the bottom end is arranged in parallel to the display screen.
Compared with the prior art, the invention has the beneficial effects that: the invention can utilize three frame sides of the touch screen to transmit and receive infrared rays to realize touch positioning, thereby reducing the production and manufacturing cost and difficulty, and the trilateral infrared touch also generates a longitude and latitude staggered infrared optical network, meanwhile, due to the interaction of the infrared detecting tube and the infrared reflecting part at the expansion part, the generated optical network can generate layering sense, namely, infrared rays emitted by the infrared detecting tube can obliquely and downwards irradiate and are reflected by the reflecting part to be received by the infrared sensing tube, and the infrared rays in the incident direction of the infrared reflecting part are far higher than the height of the upper surface of the display screen, so that the touch of a human body can be sensed in advance when the touch screen is used, namely, the incident rays are firstly shielded to shield the longitude and latitude staggered optical network, a larger time interval is provided for the response of a processor, and a better rapid response sense is realized when a user uses the touch screen, the human body detector is matched for use, the detector of the ultrasonic radar pattern can detect human body distance and judge human body position, basis is provided for an infrared light scanning area, accordingly, the response speed of the touch screen is further increased, and effective basis can be provided for automatic stop scanning when a person is far away from the screen.
Drawings
FIG. 1 is a schematic top view of the internal structure of the present invention;
FIG. 2 is a schematic side view of the internal structure of the present invention;
fig. 3 is an enlarged schematic view of the portion a of the present invention.
In the figure: 1. an infrared induction tube; 2. an infrared probe tube; 3. a human body detector; 4. an infrared receiving tube; 5. a display screen; 6. a condenser lens; 7. an infrared reflection section; 8. a protective frame; 9. an infrared emission tube; 10. an expansion section; 11. and the light reflecting through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an embodiment of the present invention is shown: a three-edge infrared touch screen comprises a display screen 5 and a protective frame 8 wrapped outside the display screen 5, wherein infrared emission tubes 9 and infrared receiving tubes 4 are respectively arranged on two opposite frame edges on the protective frame 8 at equal intervals, the infrared emission tubes 9 and the infrared receiving tubes 4 are mutually aligned, an extension part 10 extending outwards is arranged on one frame edge of the protective frame 8 between the infrared emission tubes 9 and the infrared receiving tubes 4, infrared detection tubes 2 are arranged at equal intervals on the top end of the outer side wall of the extension part 10 close to one side of the display screen 5, the infrared detection tube 2 is another infrared emission tube, the infrared detection tube 2 is used for infrared emission, infrared induction tubes 1 are arranged at equal intervals on one frame edge of the protective frame 8 below the extension part 10, the infrared induction tubes 1 are another infrared receiving tube, the infrared induction tubes 1 and the infrared detection tubes 2 are arranged in one-to-one alignment, the infrared reflection part 7 is arranged on the frame edge of the protective frame 8 on the symmetrical side of the expansion part 10, and the infrared induction tube 1 receives the infrared light generated by the infrared detection tube 2 after being reflected by the infrared reflection part 7 for use.
The infrared transmitting tube 9, the infrared receiving tube 4, the infrared detecting tube 2 and the infrared sensing tube 1 can form an infrared light net with staggered warps and wefts above the display screen 5 for confirming the coordinates of touch points, the only difference is that the infrared light emitted by the infrared detecting tube 2 can be received by the infrared sensing tube 1 after being reflected in a V shape through the infrared reflecting part 7, the infrared detecting tube 2 and the infrared sensing tube 1 can be positioned at the same side by utilizing the infrared reflecting part 7 as a reflecting interface, the expanding part 10 and the protective frame 8 can be integrally formed, so the production is easy during production and processing, and simultaneously, the incident light of the V-shaped infrared light is utilized for judging the touch position and touch operation in advance, namely, the infrared between the infrared transmitting tube 9 and the infrared receiving tube 4 can be shielded by shielding the infrared ray in the incident direction of the infrared reflecting part 7, therefore, the scanning processing of the processor is facilitated.
The infrared reflection part 7 comprises reflection through holes 11 which are arranged at equal intervals, the reflection through holes 11 are mutually aligned with the infrared induction tube 1 and the infrared detection tube 2, the upper end and the lower end inside the reflection through holes 11 are all provided with reflection surfaces for reflecting light, the reflection surfaces are gold mirrors or silver mirrors, the gold-plated reflection surfaces are preferably used for increasing the reflectivity, a condenser lens 6 is arranged inside the reflection through holes 11 between the upper end and the lower end, specifically, infrared light emitted by the infrared detection tube 2 enters the inside of holes above the reflection through holes 11 and is reflected by the reflection surface at the upper end and then is gathered by the condenser lens 6, then the infrared light which is possibly dispersed is gathered on the reflection surface at the lower end again and is emitted to one side of the infrared induction tube 1, the touch precision caused by light diffusion which is possibly generated by long-distance emission of the infrared light is reduced, and the infrared light gathering point of the condenser lens 6 is on the reflection surface at one side of the bottom inside the reflection through holes 11, the infrared light reflected by the bottom reflecting surface is parallel to the display screen 5, the specific style of the condenser 6 can be any style, and the lenses capable of generating the condensing effect can be all the same, which is not repeated herein.
The human body detectors 3 are arranged at the positions of the expansion parts 10 at equal intervals, the human body detectors 3 are ultrasonic radar sensors, the number of the human body detectors 3 is not less than 3, the human body detectors 3 are used for detecting that a human body is close to the display screen 5 for use, the human body detectors 3 have a distance measuring function, the human body detectors 3 are also waken up for use after the display screen 5 is waken up, whether obstacles are close to the human body or not is detected, namely whether a user uses the human body or not is judged, when the user uses the touch screen, the ultrasonic radar sensors can determine the positions of the obstacles according to reflected ultrasonic waves so as to judge possible areas of the touch screen, and further determination is carried out through the infrared detection tube 2, so that a processor of the touch screen can control infrared rays in the touch screen area to carry out rapid scanning and be used for increasing the response speed, on the other hand, when the screen is powered off or the user is far away from the display screen 5 or does not detect the obstacles, the processor can stop the transmission and receiving processing of the infrared rays, and the energy consumption can be reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (5)
1. The utility model provides a trilateral formula infrared touch-sensitive screen, includes display screen (5) and wraps up in protection frame (8) in the display screen (5) outside, equidistant infrared transmitting tube (9) and infrared receiving tube (4) of having arranged respectively on two relative frame limits on protection frame (8), and infrared transmitting tube (9) and infrared receiving tube (4) align each other and arrange its characterized in that: the infrared radiation device is characterized in that an extension part (10) extending outwards is arranged on one side frame edge of a protection frame (8) between an infrared emission tube (9) and an infrared receiving tube (4), infrared radiation tubes (2) are arranged on the top end, close to one side of a display screen (5), of the outer side wall of the extension part (10) at equal intervals, the infrared radiation tubes (2) are used for emitting infrared rays, infrared induction tubes (1) are arranged on one side frame edge of the protection frame (8) below the extension part (10) at equal intervals, the infrared induction tubes (1) and the infrared radiation tubes (2) are arranged in a one-to-one alignment mode, infrared reflection parts (7) are arranged on the frame edge of the protection frame (8) on the symmetrical side of the extension part (10), and the infrared induction tubes (1) receive infrared light generated by the infrared radiation tubes (2) after being reflected by the infrared reflection parts (7) for use;
the human body detector (3) is arranged at the position of the expansion part (10) at equal intervals, the human body detector (3) is used for detecting that a human body is close to the display screen (5) for use, and the human body detector (3) has a distance measuring function.
2. A three-sided infrared touch screen as defined in claim 1, wherein: infrared reflection portion (7) are including reflection of light through-hole (11) that equidistant arranged, reflection of light through-hole (11) and infrared induction pipe (1) and infrared spy penetrate pipe (2) and align each other and arrange, reflection of light through-hole (11) inside last lower extreme all is equipped with the reflection of light face that is used for the reflection of light to use, and reflection of light through-hole (11) internally mounted between the reflection of light face of upper and lower end has condensing lens (6).
3. A three-sided infrared touch screen as defined in claim 1, wherein: the human body detectors (3) are ultrasonic radar sensors, and the number of the human body detectors (3) is not less than 3.
4. A three-sided infrared touch screen as defined in claim 2, wherein: the reflecting surface is a gold mirror or a silver mirror.
5. A three-sided infrared touch screen as defined in claim 2, wherein: the infrared light gathering point gathered by the light gathering lens (6) is on the reflecting surface at one side of the bottom end inside the reflecting through hole (11), and the infrared light reflected by the reflecting surface at the bottom end is arranged in parallel with the display screen (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111459018.4A CN114115611A (en) | 2021-12-02 | 2021-12-02 | Trilateral infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111459018.4A CN114115611A (en) | 2021-12-02 | 2021-12-02 | Trilateral infrared touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN114115611A true CN114115611A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111459018.4A Pending CN114115611A (en) | 2021-12-02 | 2021-12-02 | Trilateral infrared touch screen |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201556190U (en) * | 2010-01-06 | 2010-08-18 | 北京汇冠新技术股份有限公司 | Infrared touch screen |
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| US20120176345A1 (en) * | 2009-09-30 | 2012-07-12 | Beijing Irtouch Systems Co., Ltd. | Touch screen, touch system and method for positioning a touch object in touch system |
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| CN104991686A (en) * | 2015-07-31 | 2015-10-21 | 上海复旦上科多媒体有限公司 | Ultrasonic touch control system |
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| CN107256103A (en) * | 2017-05-27 | 2017-10-17 | 青岛海信电器股份有限公司 | It is a kind of to be used for the control method and device of infrared discharge lamps in infrared touch panel |
| CN108021264A (en) * | 2017-05-24 | 2018-05-11 | 上海优熠电子科技有限公司 | Three side formula infrared touch panels |
| CN110502158A (en) * | 2019-08-15 | 2019-11-26 | 无锡海森诺科技有限公司 | A kind of system and its detection method for realizing infrared touch based on reflection |
| CN112631464A (en) * | 2020-12-17 | 2021-04-09 | 广州华欣电子科技有限公司 | Frame structure of infrared touch screen and infrared touch screen |
-
2021
- 2021-12-02 CN CN202111459018.4A patent/CN114115611A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120176345A1 (en) * | 2009-09-30 | 2012-07-12 | Beijing Irtouch Systems Co., Ltd. | Touch screen, touch system and method for positioning a touch object in touch system |
| CN201556190U (en) * | 2010-01-06 | 2010-08-18 | 北京汇冠新技术股份有限公司 | Infrared touch screen |
| CN102426501A (en) * | 2011-10-27 | 2012-04-25 | 北京汇冠新技术股份有限公司 | Built-in infrared touch screen |
| CN202281992U (en) * | 2011-10-27 | 2012-06-20 | 北京汇冠新技术股份有限公司 | Infrared touch screen |
| CN103235670A (en) * | 2013-04-24 | 2013-08-07 | 京东方科技集团股份有限公司 | Infrared touch module, infrared touch screen and display device |
| CN103294282A (en) * | 2013-05-03 | 2013-09-11 | 西安Tcl软件开发有限公司 | Infrared touch device and electronic equipment |
| CN104991686A (en) * | 2015-07-31 | 2015-10-21 | 上海复旦上科多媒体有限公司 | Ultrasonic touch control system |
| CN105224148A (en) * | 2015-10-19 | 2016-01-06 | 广州视睿电子科技有限公司 | Power adjustment method and device for infrared touch frame |
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| CN107256103A (en) * | 2017-05-27 | 2017-10-17 | 青岛海信电器股份有限公司 | It is a kind of to be used for the control method and device of infrared discharge lamps in infrared touch panel |
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| CN112631464A (en) * | 2020-12-17 | 2021-04-09 | 广州华欣电子科技有限公司 | Frame structure of infrared touch screen and infrared touch screen |
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Application publication date: 20220301 |