Dot-matrix display apparatus

Details Dot-matrix display apparatus Dot-matrix display apparatus

1990-06-08

1993-08-31

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340718, G09G 336

Patent

active

052413047

ABSTRACT:
A dot-matrix display apparatus comprising a display panel and two integrated circuits. The panel has a number of column electrodes extending vertically and parallel to one another, and a number of row electrodes extending horizontally and parallel to one another. Two TAB films are secured to the upper and lower edges of the panel. The integrated circuits are mounted on these TAB films, respectively. The first integrated circuit distributes odd-numbered ones of pixel data items simultaneously to the odd-numbered column electrodes, whereas the second integrated circuit distributes the even-numbered pixel data simultaneously to the even-numbered column electrodes. Either integrated circuit has an interface circuit and a control circuit, which cooperate to select the odd-numbered pixel data items or the even-numbered pixel data items. The pixel data items, thus selected, are stored into a RAM, and are supplied to the column electrodes, when necessary.

REFERENCES:
patent: 4804251 (1989-02-01), Jacobs
patent: 4837566 (1989-06-01), Channing et al.
patent: 4908710 (1990-03-01), Wakai et al.
patent: 4917468 (1990-04-01), Matsuhashi et al.
Kaneko, "Directly Addressed Matrix Liquid Crystal Display Panel With High Information Content," 2322 Molecular Crystals & Liquid Crystals 139 Nos. 1-2, pp. 81-101, Montreux, Switzerland, published 1986.

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