Patent Number: 6,297,793

Title: Liquid-crystal display device

Abstract: A liquid-crystal display device is provided which is capable of realizing dot inversion driving with fast response speed without using a data driver IC suitable for use with a high voltage. A voltage conversion circuit of the liquid-crystal display device includes a first voltage application circuit formed of a transistor which applies an output voltage as it is from a data driver, a second voltage application circuit, in which other four transistors form a switched capacitor circuit, which converts an output voltage from the data driver into an inverse output voltage and applies it to the data line, and a third voltage application circuit formed of another transistor and the like which applies an auxiliary voltage to the data line before the inverse output voltage is applied to the data line.

Inventors: Kawahata; Ken (Miyagi-ken, JP)

Assignee: LG. Philips LCD Co., Ltd.

International Classification: G09G 3/36 (20060101); G09G 003/36 ()

Expiration Date: 10/02/2018