초록 ▼

A video display touch detection digitizer for generating the coordinate position when the video display is touched. The light signals for the X and Y coordinate array are generated from the raster scan signals of the video display during selected periods of the vertical and horizontal blanking inter

A video display touch detection digitizer for generating the coordinate position when the video display is touched. The light signals for the X and Y coordinate array are generated from the raster scan signals of the video display during selected periods of the vertical and horizontal blanking intervals. Vertical and horizontal mirrors reflect, respectively, the resulting row and columns of light signals across the screen of the video display where other mirrors reflect the signals to, respectively, row and column signal detectors. Control circuitry detects the resulting interruption in the rows and columns of light signals when the screen of the video display is touched and generates signals representing the touch coordinates.

대표청구항 ▼

A video display for displaying light images generated by a raster scan signal, said video display comprising a video circuit for controlling said raster scan signals including means for generating a plurality of first signals wherein each first signal is associated with one or more picture elements

A video display for displaying light images generated by a raster scan signal, said video display comprising a video circuit for controlling said raster scan signals including means for generating a plurality of first signals wherein each first signal is associated with one or more picture elements of a horizontal scan line which occurs during a vertical blanking interval of said raster scan and means for generating a plurality of second signals wherein each second signal occurs during a horizontal blanking interval of said raster scan and is associated with one or more horizontal scan lines of a displayed light image; and a screen including an image display area for displaying light images in response to said raster scan signals and a coordinate display area for displaying discrete light sources in response to each of said first signals and said second signals.