Method of driving an LCD employing an active matrix with short p

Details Method of driving an LCD employing an active matrix with short p Method of driving an LCD employing an active matrix with short p

1994-05-10

1996-08-06

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 56, 359 59, 345148, 345 89, G02F 1133

Patent

active

055439470

ABSTRACT:
Method of driving a liquid crystal electro-optical device in such a way that the device produces accurate gray tones with high reproducibility. In this device, a complementary TFT (thin film transistor) configuration consisting of at least one p-channel TFT and at least one n-channel TFT is formed per pixel electrode. One of the input/output terminals of this configuration is connected to the pixel electrode. The other is connected to a first signal line. All the gate electrodes of the TFTs of the configuration are connected to a second signal line. High-speed pulses are applied to one of the input/output terminals of the TFT configuration via the first signal line. A high-speed bipolar signal is applied to the gate electrodes in synchronism with the pulses, to electrically charge the pixel. After the completion of the charging, the bipolar signal is again applied to the gate electrodes to discharge the pixel. This series of operations is repeated to produce halftones.

REFERENCES:
patent: 4380008 (1983-05-01), Kawakami et al.
patent: 4413256 (1983-11-01), Yasuda et al.
patent: 4605972 (1986-08-01), Hatanaka
patent: 4641156 (1987-02-01), Ohta et al.
patent: 4709995 (1987-12-01), Kuribayashi et al.
patent: 4769713 (1988-09-01), Yasui
patent: 4783145 (1988-11-01), Hatanaka et al.
patent: 4808991 (1989-02-01), Tachiuchi et al.
patent: 4818077 (1989-04-01), Ohwada et al.
patent: 4836654 (1989-06-01), Fujimura et al.
patent: 4884079 (1989-11-01), Inoue et al.
patent: 4929058 (1990-05-01), Numao
patent: 4938565 (1990-07-01), Ichikawa
patent: 5117298 (1992-05-01), Hirai
patent: 5165075 (1992-11-01), Hirdei et al.
patent: 5280280 (1994-01-01), Hotto
patent: 5349366 (1994-09-01), Yamazaki et al.
patent: 5414442 (1995-05-01), Yamazaki et al.

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