Saturating column driver for grey scale LCD

Details Saturating column driver for grey scale LCD Saturating column driver for grey scale LCD

1991-02-14

1991-10-29

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

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

340793, 340811, G09G 336

Patent

active

050619209

ABSTRACT:
A saturating column driver for an LCD substrate. Digital data is entered into a register in a serial fashion to produce a series of single-column addresses. The single-column addresses are latched and apparatus is provided for translating video binary words into grey scale codes. Also provided are switches responsive to the translated video binary words which switch a voltage input corresponding to the video binary word through to the LCD substrate to generate the desired grey scale.

REFERENCES:
patent: 4217574 (1980-08-01), Anderson
patent: 4571584 (1986-02-01), Suzuki
patent: 4859998 (1989-08-01), Kawamura et al.
"Thin-Film Transistors for Video Applications", by Thomash, Credelle 1988, International Display Research Conference, IEEE, 1988, pp. 208-214.
"Peripheral Circuit Integrated Poly-Si TFTLCD with Gray Scale Representation", by Ohwada et al., 1988 International Display Research Conference, IEEE, 1988, pp. 215-219.

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