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TW200943139A - Touch panel module and method for determining position of touch point on touch panel - Google Patents

Touch panel module and method for determining position of touch point on touch panel

Info

Publication number
TW200943139A
TW200943139A TW97111860A TW97111860A TW200943139A TW 200943139 A TW200943139 A TW 200943139A TW 97111860 A TW97111860 A TW 97111860A TW 97111860 A TW97111860 A TW 97111860A TW 200943139 A TW200943139 A TW 200943139A
Authority
TW
Taiwan
Prior art keywords
band
touch panel
touch
retro
splitter
Prior art date
Application number
TW97111860A
Other languages
Chinese (zh)
Other versions
TWI362608B (en
Inventor
Ching-Chang Lin
Sheng-Min Chou
Original Assignee
Silitek Electronic Guangzhou
Lite On Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Silitek Electronic Guangzhou, Lite On Technology Corp filed Critical Silitek Electronic Guangzhou
Priority to TW97111860A priority Critical patent/TWI362608B/en
Publication of TW200943139A publication Critical patent/TW200943139A/en
Application granted granted Critical
Publication of TWI362608B publication Critical patent/TWI362608B/en

Links

Landscapes

  • Position Input By Displaying (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

A touch panel module includes a surface panel, a band splitter, an optical unit and a control unit. Three peripheral sides of the surface panel are respectively positioned retro-reflectors, and the band splitter is positioned on the retro-reflector positioned at one peripheral side of the surface panel, where the band splitter totally reflects a light beam within a first band while a light beam with a second band transmits through the band splitter. The optical unit is utilized for generating a first band beam within the first band and for receiving a reflected first band beam from one of the retro-reflectors to generate a first signal, and the control unit performs touch point detection according to the first signal.
TW97111860A 2008-04-01 2008-04-01 Touch panel module and method for determining position of touch point on touch panel TWI362608B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW97111860A TWI362608B (en) 2008-04-01 2008-04-01 Touch panel module and method for determining position of touch point on touch panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW97111860A TWI362608B (en) 2008-04-01 2008-04-01 Touch panel module and method for determining position of touch point on touch panel

Publications (2)

Publication Number Publication Date
TW200943139A true TW200943139A (en) 2009-10-16
TWI362608B TWI362608B (en) 2012-04-21

Family

ID=44868932

Family Applications (1)

Application Number Title Priority Date Filing Date
TW97111860A TWI362608B (en) 2008-04-01 2008-04-01 Touch panel module and method for determining position of touch point on touch panel

Country Status (1)

Country Link
TW (1) TWI362608B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI408587B (en) * 2010-06-14 2013-09-11 Pixart Imaging Inc Touch system and positioning method therefor
TWI410843B (en) * 2010-03-26 2013-10-01 Quanta Comp Inc Background image updating method and touch screen
TWI423095B (en) * 2010-02-09 2014-01-11 Qisda Corp Object-detecting system and method by use of non-coincident fields of light
TWI423099B (en) * 2010-08-11 2014-01-11 Qisda Corp Method for determining positions of touch points on an optical touch panel
TWI424343B (en) * 2010-11-22 2014-01-21 Pixart Imaging Inc Optical screen touch system and method thereof
US8692804B2 (en) 2010-08-24 2014-04-08 Quanta Computer Inc. Optical touch system and method
TWI450150B (en) * 2011-12-21 2014-08-21 Wistron Corp Touch method and touch system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI423095B (en) * 2010-02-09 2014-01-11 Qisda Corp Object-detecting system and method by use of non-coincident fields of light
TWI410843B (en) * 2010-03-26 2013-10-01 Quanta Comp Inc Background image updating method and touch screen
TWI408587B (en) * 2010-06-14 2013-09-11 Pixart Imaging Inc Touch system and positioning method therefor
TWI423099B (en) * 2010-08-11 2014-01-11 Qisda Corp Method for determining positions of touch points on an optical touch panel
US8692804B2 (en) 2010-08-24 2014-04-08 Quanta Computer Inc. Optical touch system and method
TWI494824B (en) * 2010-08-24 2015-08-01 Quanta Comp Inc Optical touch system and method
TWI424343B (en) * 2010-11-22 2014-01-21 Pixart Imaging Inc Optical screen touch system and method thereof
TWI450150B (en) * 2011-12-21 2014-08-21 Wistron Corp Touch method and touch system

Also Published As

Publication number Publication date
TWI362608B (en) 2012-04-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees