IMAGE DISPLAY SYSTEM, IMAGE DISPLAY SYSTEM DRIVE METHOD, AND LIGHT PEN

WIPO Patent Application WO/2013/161144

A1

An objective of the present invention is to facilitate holding and using a light pen (50) in an appropriate location. To this end, in an image display system (100) comprising an image display device (30), a light pen, and a rendering device (40), the light pen receives emitted light which occurs in an image display unit (10), in a timing detection subfield, a y-coordinate detection subfield, and an x-coordinate detection subfield, generates a received light signal, compares the received light signal with a received light signal threshold and determines the present light receiving state, and outputs a signal which includes the result of this determination. The rendering device receives the signal which is outputted from the light pen and creates a rendering signal which represents the result of the comparison. The image display device displays in the image display unit an image based on the rendering signal which is outputted from the rendering device.

JPS63150605

LIGHT SPOT POSITION DETECTOR

KUWAYAMA TAKESHI
INOUE SHINICHI
ORIGUCHI TAKAHIKO

PCT/JP2013/000863

October 31, 2013

February 18, 2013

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PANASONIC CORP (JP)

G06F3/037; G06F3/041; G06F3/042

JPH03198124A	1991-08-29
JPH04157520A	1992-05-29
JPS50108838A	1975-08-27
JP2001318765A	2001-11-16
JP2003099199A	2003-04-04
JPH01295323A	1989-11-29
JPH09244791A	1997-09-19
JP2007156943A	2007-06-21
JPH03113526A	1991-05-14

NAITO, Hiroki et al. (JP)
Hiroki Naito (JP)

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