CN102902423B - A kind of low power consumption device for optical touch screen - Google Patents

A kind of low power consumption device for optical touch screen Download PDF

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Publication number
CN102902423B
CN102902423B CN201210401771.2A CN201210401771A CN102902423B CN 102902423 B CN102902423 B CN 102902423B CN 201210401771 A CN201210401771 A CN 201210401771A CN 102902423 B CN102902423 B CN 102902423B
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CN
China
Prior art keywords
touch screen
optical touch
power consumption
optical
low power
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Expired - Fee Related
Application number
CN201210401771.2A
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Chinese (zh)
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CN102902423A (en
Inventor
郑贵源
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WUXI HINORA TECHNOLOGY Co Ltd
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WUXI HINORA TECHNOLOGY Co Ltd
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Priority to CN201210401771.2A priority Critical patent/CN102902423B/en
Publication of CN102902423A publication Critical patent/CN102902423A/en
Application granted granted Critical
Publication of CN102902423B publication Critical patent/CN102902423B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention relates to touching display screen technical field, specifically refer to a kind of low power consumption device for optical touch screen, it comprises optical touch screen, four angles of described optical touch screen are provided with optical sensor, the four edges of described optical touch screen is provided with light-emitting section, described optical sensor and described light-emitting section form touch-control system, and the four edges of described optical touch screen is also provided with close to inductor, are used for feeding back to system after induction human body or other object proximity optical touch screens.Compared with prior art, the present invention can make touch-control system keep low power consumpting state, and the decay reducing optical element is like this aging, can improve the serviceable life of equipment; And the power consumption reducing system can improve the service time of equipment.

Description

A kind of low power consumption device for optical touch screen
Technical field
The present invention relates to touching display screen technical field, specifically refer to a kind of low power consumption device for optical touch screen.
Background technology
Tradition display terminal man-machine interactive system action need uses the operations such as mouse, keyboard or equipment carry button to input, selection, and equipment is usually wanted plug-in or carried above input equipment, and installing and using to equipment and safeguard makes troubles.
But along with touch screen (Touchpanel) technology is risen, man-machine interactive system outward appearance is made to become succinct, operation is more simple and easy to use, personnel can carry out human-machine interaction data information by the mode of touch-control and equipment, the action such as directly can carry out reducing, amplify, pull in viewing area, and can virtual key be operated direct control on-screen menu, and touch-control game etc. can be operated.
Current touch screen can be divided into according to its touch-control principle: resistance-type, condenser type, sound wave type, optical profile type etc.
Resistance-type: light transmission is poor, easily scratch, Operational Figure Of Merit is poor;
Condenser type: human body touch-control can only be responded to, to other touch object nonrecognition, cannot accomplish large scale by restrictions such as manufacture crafts, current full-size is 22 cun simultaneously;
Sound wave type: affect by size and dust;
Optical profile type: conveniently can make giant-screen, viewing area is substantially unaffected.
Current optical touch screen technology application is more, and it is mainly two kinds:
As shown in Figure 1, a kind of is the retroreflecting bar 1 of two or more optical sensor, light source and screen edge;
Another kind is that two or more optical sensor and active illuminating edge strip are formed.
When hand or other objects enter after touch area shuts out the light, optical sensor captures this touch information, passes to touch module and carries out computing and draw corresponding position of touch coordinate.As touch screen equipment, touch-control event cannot be predicted due to equipment when to occur, but the physical device most of the time is operated in non-touch-control state, but touch screen system needs to continue the duty maintaining high power consumption, to respond the touch-control event occurred at any time, the duty of high power consumption like this shortens the service time of equipment, and also reduces the serviceable life of equipment.
Summary of the invention
For the defect existed in prior art and problem, the object of the invention is to provide a kind of low power consumption device for optical touch screen that can overcome above-mentioned defect.
The invention provides a kind of low power consumption device for optical touch screen, it comprises optical touch screen, four angles of described optical touch screen are provided with optical sensor, the four edges of described optical touch screen is provided with light-emitting section, described optical sensor and described light-emitting section form touch-control system, the four edges of described optical touch screen is also provided with close to inductor, is used for feeding back to system after induction human body or other object proximity optical touch screens.
Described is ultrasonic sensor or infrared sensor close to inductor.
Described light-emitting section is retroreflecting bar or active illuminating edge strip.
The present invention also provides a kind of low power consumption device for optical touch screen, it comprises optical touch screen, any two diagonal angles of described optical touch screen are provided with optical sensor, the four edges of described optical touch screen is provided with light-emitting section, described optical sensor and described light-emitting section form touch-control system, the four edges of described optical touch screen is also provided with close to inductor, is used for feeding back to system after induction human body or other object proximity optical touch screens.
Described is ultrasonic sensor or infrared sensor close to inductor.
Described light-emitting section is retroreflecting bar or active illuminating edge strip.
Compared with prior art, the present invention can make touch-control system keep low power consumpting state, and the decay reducing optical element is like this aging, can improve the serviceable life of equipment; And the power consumption reducing system can improve the service time of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the optical touch control system containing retroreflecting bar in prior art;
Fig. 2 is the structural representation of one embodiment of the invention;
Fig. 3 is principle of work process flow diagram of the present invention;
Fig. 4 is touch-control system block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 2, in an embodiment provided by the present invention, a kind of low power consumption device for optical touch screen, it comprises optical touch screen 6, four angles of optical touch screen are provided with optical sensor 4, the four edges of optical touch screen is provided with light-emitting section 3, light-emitting section 3 can be retroreflecting bar or active illuminating edge strip, optical sensor and light-emitting section 3 form touch-control system, the four edges of optical touch screen is also provided with close to inductor 5, is used for feeding back to system after induction human body or other object proximity optical touch screens 6.Wherein, can be ultrasonic sensor or infrared sensor close to inductor 5.
In another one embodiment provided by the invention, a kind of low power consumption device for optical touch screen, it comprises optical touch screen, any two diagonal angles of optical touch screen are provided with optical sensor, the four edges of optical touch screen is provided with light-emitting section, light-emitting section can be retroreflecting bar or active illuminating edge strip, optical sensor and light-emitting section form touch-control system, the four edges of optical touch screen is also provided with close to inductor, is used for feeding back to system after induction human body or other object proximity optical touch screens.Wherein, can be ultrasonic sensor or infrared sensor close to inductor.
As shown in Figure 4, in present system block diagram, the optical sensor in touch screen device of the present invention, is arranged on screen four angles, also can be two adjacent angles, main acquisition people or other objects touch event on screen; Close to inductor, can be ultrasound wave, infrared or other sensors, be used for feeding back to system after induction human body or other object proximity touch screens, make the timely anticipation touch-control event of system energy at hand, coordinate touch-control system controller, can control the duty retroreflecting bar of touch-control system or active illuminating bar in real time when there being touch-control to occur, optical sensor reads respective value above, and then converses touch-control coordinates feedback to system.
Principle of work process flow diagram of the present invention, as shown in Figure 3:
When after touch-control system start, first touch-control system initialization is carried out, and then judge whether proximity transducer senses object proximity, after proximity transducer has object proximity to certain limit, touch screen is in complete duty, two or four optical sensor works simultaneously, waits for the generation of touch-control time.When judging that proximity transducer does not have object proximity, and optical sensor has captured after object enters touch area, and touch screen processor will wake rapidly other several optical sensors being in cut out or low power consumpting state up.When not having touch-control event to occur for a long time, proximity transducer does not have again object proximity signal, after time delay Preset Time, being now that optical sensor is wherein several will enter low-power consumption standby pattern, but ensure that one or two is normal operating conditions to I haven't seen you for ages, suppose that four optical sensors are C1, C2, C3, C4, can work independently after a Preset Time according to C1 and close, start C2 and close C1 simultaneously, start C3 when closing C2 after the schedule time of work and take turns to operate with this, each optical sensor can start according to the procedure order pre-set successively, or combined in any order, also can be random start, can ensure to cause some optical sensors time that works independently longer than other times like this, cause optical element aging or decay inconsistent give touch screen duty bring impact, because the touch screen most of the time is operated in non-touch-control state, therefore to raising service life of equipment and reduction power consumption Be very effective
Certainly, what adopt above-mentioned optimal technical scheme just to carry out the present invention for the ease of understanding illustrates, the present invention also can have other embodiments, and protection scope of the present invention is not limited to this.When not deviating from the present invention's spirit and essence thereof, person of ordinary skill in the field is when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to claim of the present invention.

Claims (6)

1. the low power consumption device for optical touch screen, it comprises optical touch screen, four angles of described optical touch screen are provided with optical sensor, the four edges of described optical touch screen is provided with light-emitting section, described optical sensor and described light-emitting section form touch-control system, it is characterized in that, the four edges of described optical touch screen is also provided with close to inductor, be used for feeding back to system after induction human body or other object proximity optical touch screens;
When not having touch-control event to occur for a long time, described do not have again object proximity signal close to inductor, after time delay Preset Time, being now that described optical sensor is wherein several will enter low-power consumption standby pattern, but ensure that one or two is normal operating conditions to I haven't seen you for ages.
2. the low power consumption device for optical touch screen according to claim 1, is characterized in that, described is ultrasonic sensor or infrared sensor close to inductor.
3. the low power consumption device for optical touch screen according to claim 1, is characterized in that, described light-emitting section is retroreflecting bar or active illuminating edge strip.
4. the low power consumption device for optical touch screen, it comprises optical touch screen, any two diagonal angles of described optical touch screen are provided with optical sensor, the four edges of described optical touch screen is provided with light-emitting section, described optical sensor and described light-emitting section form touch-control system, it is characterized in that, the four edges of described optical touch screen is also provided with close to inductor, be used for feeding back to system after induction human body or other object proximity optical touch screens;
When not having touch-control event to occur for a long time, described do not have again object proximity signal close to inductor, after time delay Preset Time, being now that described optical sensor is wherein several will enter low-power consumption standby pattern, but ensure that one or two is normal operating conditions to I haven't seen you for ages.
5. the low power consumption device for optical touch screen according to claim 4, is characterized in that, described is ultrasonic sensor or infrared sensor close to inductor.
6. the low power consumption device for optical touch screen according to claim 4, is characterized in that, described light-emitting section is retroreflecting bar or active illuminating edge strip.
CN201210401771.2A 2012-10-19 2012-10-19 A kind of low power consumption device for optical touch screen Expired - Fee Related CN102902423B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210401771.2A CN102902423B (en) 2012-10-19 2012-10-19 A kind of low power consumption device for optical touch screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210401771.2A CN102902423B (en) 2012-10-19 2012-10-19 A kind of low power consumption device for optical touch screen

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CN102902423B true CN102902423B (en) 2016-01-20

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Publication number Priority date Publication date Assignee Title
CN107426362A (en) * 2017-06-21 2017-12-01 华勤通讯技术有限公司 Mobile terminal and its control method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201757894U (en) * 2010-08-06 2011-03-09 汉王科技股份有限公司 Electronic reader with approach sensing function
CN202049308U (en) * 2011-04-22 2011-11-23 冠捷投资有限公司 Display structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201118693A (en) * 2009-11-27 2011-06-01 Coretronic Corp Light source modul and optical touch apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201757894U (en) * 2010-08-06 2011-03-09 汉王科技股份有限公司 Electronic reader with approach sensing function
CN202049308U (en) * 2011-04-22 2011-11-23 冠捷投资有限公司 Display structure

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