Liquid crystal display having improved common line

Details Liquid crystal display having improved common line Liquid crystal display having improved common line

1998-01-20

1998-11-03

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349192, 349152, 345211, 345212, 345100, 345 92, G02F 11343, G09G 336, G09G 500

Patent

active

058317090

ABSTRACT:
A liquid crystal display includes a first substrate having a plurality of pixel electrodes arranged in a matrix, a plurality of row terminals and common electrode terminals arranged on one side of two adjacent sides of the first substrate, a plurality of column terminals and common electrode terminals arranged on the other side of the two adjacent sides of the first substrate; a second substrate arranged to be opposite to the first substrate and to interpose a liquid crystal display with the first substrate and having a counter electrode for performing liquid crystal display by applying a voltage across the pixel electrodes and the counter electrode. The conductive region being connected to at least one of the common electrode terminals to apply a common potential to the counter electrode. Instead of using a common drive circuit, a single conductive region is formed along only a single one of the two remaining sides of the first substrate so as to allow for measuring of at least one of a voltage drop and a voltage signal delay occurring at a substantially central portion of the matrix.

REFERENCES:
patent: 4832455 (1989-05-01), Takano et al.
patent: 5311342 (1994-05-01), Watanabe
patent: 5537129 (1996-07-01), Okada et al.
patent: 5734450 (1996-02-01), Irie et al.
patent: 5790212 (1998-08-01), Lim

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