Document Type and Number:
Japanese Patent JPH0587847
Kind Code:
B2
Abstract:
A flat panel liquid crystal display (12) with an integrated touch panel has a multitude of pixels (28) arranged in multiple columns and multiple rows. The pixels (28) of the first column (54) and last column (66), and of the first row (60) and of the last row (72) are controlled in conjunction with emitters (52, 58) and detectors (64, 70) with associated mirrors (74, 80, 82, 84) to create a sequence of light beams that extend across the display panel (12) in both the X and Y directions. Whenever a stylus (86) is placed near the display panel, two orthogonal light beams are interrupted corresponding to the X and Y positions of the stylus (86) relative to the display panel (12).
Inventors:
ROBAATO DEI MEDO
Application Number:
JP26884189A
Publication Date:
December 20, 1993
Filing Date:
October 16, 1989
Export Citation:
Assignee:
TEKTRONIX INC
International Classes:
G06F3/042; G06F3/033; G06F3/041; G06F3/048; G06K11/06; (IPC1-7): G06F3/033; G06F3/03
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