Japan Display Inc.

Sanyo Electric Co., Ltd.

Sony Corporation

Epson Imaging Devices Corporation

Japan Display West Inc.

Yasuo Segawa

Tomohide Onogi

Masaaki Aota

Hiroshi Matsuda

Tsutomu Yamada

Keiichi Sano

Norio Tabuchi

Tatsuya Yata

Kiyoshi Yoneda

Hiroki Hamada

Kazuto Noritake

Hiroaki Kouno

Shouzou Ohura

Hayato Kurasawa

Hideki Kaneko

Ryoichi Yokoyama

Norio Koma

Masahiro Horiguchi

Masashi Mitsui

Susumu Oima

Shinji Ichikawa

Hidetoshi Murai

Yoshiaki Matsuura

Masahiko Tokunaga

Manabu Watanabe

Susumo Oima

A liquid crystal display device according to FFS technology is provided, which sufficiently provides a common electrode with common electric potential and improves an aperture ratio of pixels. A pixel electrode is formed of a first layer transparent electrode. A common electrode made of a second layer transparent electrode is formed above the pixel electrode interposing an insulation film between them. The common electrode in an upper layer is provided with a plurality of slits. The common electrode extends over all the pixels in a display region. An end of the common electrode is disposed on a periphery of the display region and connected with a peripheral common electric potential line that provides a common electric potential Vcom. There is provided neither an auxiliary common electrode line nor a pad electrode, both of which are provided in a liquid crystal display device according to a conventional art.

Display device

A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.

Liquid crystal display device having improved electrostatic discharge resistance

Display device including common line display device including common line

In an example, a display device comprises a substrate with pixels arranged in a display portion, a signal line control circuit connected to signal lines, a plurality of thin film transistors inputting a pixel signal to a corresponding one of the pixels from the corresponding one of the signal lines, a common electrode overlapping the entire display portion, an insulating film disposed on the common electrode, a common line connected to the common electrode through contact holes in the insulating film, where the common line is disposed between the substrate and the insulating film, and outside the display portion along four sides of the display portion, a plurality of gate lines electrically connected to the thin film transistors, and a gate line control circuit connected to and configured to provide a gate signal to each of the gate lines, and disposed between the display portion and the common line.

Display device with a translucent conductive film

Liquid crystal display device

A liquid crystal display device according to FFS technology is capable of providing a common electrode with common electric potential. A pixel electrode is formed of a first layer transparent electrode. A common electrode made of a second layer transparent electrode is formed above the pixel electrode interposing an insulation film between them. The common electrode in an upper layer is provided with a plurality of slits. The common electrode extends over all the pixels in a display region. An end of the common electrode is disposed on a periphery of the display region and connected with a peripheral common electric potential line that provides a common electric potential Vcom. There is provided neither an auxiliary common electrode line nor a pad electrode, both of which are provided in a liquid crystal display device according to a conventional art.

Growing community of inventors

Kitagata-cho, Japan

Yasuo Segawa