Pen input liquid crystal display capable of displaying high-cont

Details Pen input liquid crystal display capable of displaying high-cont Pen input liquid crystal display capable of displaying high-cont

1995-10-18

1998-11-10

Lao, Lun-Yi

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345173, 345179, 178 1801, G09G 336

Patent

active

058350764

ABSTRACT:
A pen input liquid crystal display has row electrodes, column electrodes orthogonal to the row electrodes, and a liquid crystal layer interposed between the row and column electrodes. A pen input detecting signal is applied to one of the column electrodes, and display signals to the other column electrodes. The column electrode that receives the pen input detecting signal is sequentially shifted among the column electrodes, to simultaneously carry out a pen input scanning operation and an image displaying operation.

REFERENCES:
patent: 5448024 (1995-09-01), Kawaguchi et al.
patent: 5646643 (1997-07-01), Hirai et al.
patent: 5677744 (1997-10-01), Yoneda et al.

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