Display device having separate short circuit wires for data and

Details Display device having separate short circuit wires for data and Display device having separate short circuit wires for data and

1994-11-10

1997-01-21

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

G09G 336

Patent

active

055963420

ABSTRACT:
To prevent the damage of a display device by static electricity and to drive the display device with low voltage, on a transparent substrate of a liquid crystal display, two short circuit wires are provided, connected via a resistance. Each of the data lines is connected to the one short circuit wire via a first switching circuit, whereas each of the gate lines is connected to the other short circuit wire via a second switching circuit. A switching circuit is turned on when the potential difference between a data line and the one short circuit wire or the potential difference between a gate line and the second short circuit wire exceeds a predetermined value. When images are displayed on a liquid crystal display, the average voltage applied to each of data lines is applied to the first short circuit wire and the average voltage of voltages applied to each gate line is applied to the second short circuit wire to turn on the switching circuits.

REFERENCES:
patent: 4840459 (1989-06-01), Strong
patent: 4860148 (1989-08-01), Iwamura et al.
patent: 5068748 (1991-11-01), Ukai et al.
patent: 5144392 (1992-09-01), Brotherton

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