Matrix-type display device

Details Matrix-type display device Matrix-type display device

1997-03-06

2000-02-01

Lee, Michael H.

Television

Video display

Liquid crystal

348793, 348800, 345100, H04N 314

Patent

active

060209380

ABSTRACT:
A matrix-type display device is a liquid crystal device having 240 vertical lines on a display screen, and is provided with a driving circuit which writes a signal simultaneously into two vertical lines in one in every three scanning lines of an EDTV2 signal, in which a number of scanning lines is 180 per field, when an image based on the EDTV2 signal is displayed on the display screen. As a result, a circuit having a complicated configuration is not required, and an image based on the EDTV2 signal can be displayed on the whole display screen of a liquid crystal module having 240 vertical lines without a non-image portion.

REFERENCES:
patent: 4447812 (1984-05-01), Soneda et al.
patent: 5461424 (1995-10-01), Shimizu
patent: 5488389 (1996-01-01), Nakanishi et al.

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