Hitachi, Ltd.

Hitachi Displays, Ltd.

Hitachi Device Engineering Co., Ltd.

Shigeru Itou

Yukihide Ode

Shinji Yasukawa

Shuuichirou Matsumoto

Kouichi Kotera

Youzou Nakayasu

Hidetoshi Kida

Kazunari Saitou

Gou Yamamoto

A display device which transmits display data to drive circuits which drive a display panel using low voltage differential signals have input circuits which are hardly influenced by noise. To transmit the low voltage differential signals under the same condition, low voltage differential signal lines are formed in a zigzag pattern so as to make the lengths of the lines equal. To reduce the influence generated by the overlapping of the zigzagged low voltage differential signal lines and the drive circuits, level shift circuits are provided to the input circuits so as to make the input signals assume a stable operation level.

Display device having low voltage differential signal lines overlapping drive circuits

The present invention realizes a liquid crystal display which mounts driving circuits of low power consumption on a substrate on which a display part is mounted. The driving circuits which supply gray scale voltages to pixels are mounted on a liquid crystal display panel. Display data is transferred between the driving circuits using wiring formed on the liquid crystal display panel, the display data is transferred in the inside of the driving circuits through inner data bus lines, and a data inversion calculation which inverts values of the display data is performed in the inside of the driving circuits for achieving the low power consumption.

Liquid crystal display

Growing community of inventors

Mobara, Japan

Shigeru Itou