Optical touch panel having SMT components as light gates

Disclosed is an optical touch panel having SMT components (e.g. thin film resistor) as light gates, which comprises a rectangular position-detecting surface; a plurality of light-emitting elements for emitting a scanning light beam which are mounted along a side of the rectangular position-detecting...

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Bibliographische Detailangaben
Hauptverfasser:	PARSONS, ROBERT, LEE, EDWARD YI-SHENG, LIN, ALBERT, XUAN, HAWAII-WY
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS COMPUTING COUNTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC DIGITAL DATA PROCESSING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS PRINTED CIRCUITS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	Disclosed is an optical touch panel having SMT components (e.g. thin film resistor) as light gates, which comprises a rectangular position-detecting surface; a plurality of light-emitting elements for emitting a scanning light beam which are mounted along a side of the rectangular position-detecting surface and affixed to a frame-shaped circuit board that surrounds the perimeter of the rectangular position-detecting surface; and a plurality of light-receiving elements for receiving the light beams emitted by said plurality of corresponding light-emitting elements; a plurality of SMT components as light gates to prevent erroneous detection from being caused by sunlight than the light beams from said plurality of light-emitting elements, said plurality of SMT components and said plurality of light-receiving elements being arranged alternately along another side of the rectangular position-detecting surface and affixed to the frame-shaped circuit board and said plurality of light-receiving elements being arrange