Active matrix type liquid-crystal display unit and method of dri

Details Active matrix type liquid-crystal display unit and method of dri Active matrix type liquid-crystal display unit and method of dri

1996-11-04

1999-09-28

Lao, Lun-Yi

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 96, 349 48, G09G 318

Patent

active

059595990

ABSTRACT:
A data signal having a single polarity is outputted from a data driver of an in-plane switching type liquid-crystal display unit. In a unit pixel, an input transistor and an exhaust transistor T2 are connected to one electrode of a liquid-crystal element LC, and an input transistor and an exhaust transistor are connected to the other electrode. One input transistor and one exhaust transistor connected to the same scanning line are paired, and another input transistor and another exhaust transistor connected to another same scanning line are paired. Those paired transistors are alternately driven, thereby being capable of inverting the potential between electrodes of the liquid-crystal element even when the polarity of the data signal is single.

REFERENCES:
patent: 4393380 (1983-07-01), Hosokawa et al.
patent: 4936656 (1990-06-01), Yamashita et al.
patent: 5012228 (1991-04-01), Masuda et al.
patent: 5436635 (1995-07-01), Takahara et al.
patent: 5473451 (1995-12-01), Kazurov et al.

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