Japan Display Inc.

Other

Hitachi, Ltd.

Hitachi Device Engineering Co., Ltd.

Kentaro Agata

Hiroyuki Abe

Syou Yanagisawa

Tomonori Nishino

Mitsuru Goto

Nobuyuki Ishige

Kazune Matsumura

Masaki Murase

Akira Ogura

Takahiro Fujioka

Shinji Yasukawa

Kazunari Kurokawa

Yukihide Ode

Hiroshi Katayanagi

Takayuki Suzuki

Yozo Nakayasu

Yuji Yamashita

Gen Koide

Koichi Kotera

Shoji Nagao

Kazunari Saito

Masanari Saito

Megumi Oomori

It is possible to reduce a size of a lower frame region to ensure a wiring corrosion margin equivalent to that of a conventional technique. In a display device, a video signal wiring arranged in the lower frame region includes, in a region between a terminal section (terminal) and a video signal line, a first wiring formed on a first wiring layer and having one end connected to the terminal section to which a video signal line driving circuit is connected, a second wiring formed on a second wiring layer different from the first wiring layer and having one end connected to the other end of the first wiring, and a third wiring formed on the first wiring layer and having one end connected to the other end of the second wiring. The other end of the third wiring is connected to the video signal line via a fourth wiring formed on the second wiring layer, and the first wiring layer is formed on the side closer to an array substrate than to the second wiring layer.

Display device

An inspection circuit is properly protected in a display device, in which the driver IC is not on the terminal area. A liquid crystal display device includes a TFT substrate including a display area, a terminal area, and a counter substrate overlapping with the display area of the TFT substrate. The display area includes video signal lines. The seal material adheres the counter substrate and the TFT substrate. The display area is formed in an area surrounded by the seal material. The flexible wiring circuit substrate connects to the terminal area. The driver IC supplies video signals to the video signal line. The driver IC is not installed in the terminal area. The inspection circuit is formed between the display area and the terminal area. The inspection circuit overlaps with the counter substrate in a plan view.

Display device having pixels including pixel TFTs provided in a display area and switching TFTs located outside of the display area

A display device includes a substrate, a display region in which a plurality of pixels are provided on the substrate and that has a first side, a second side, a third side, a fourth side, and a plurality of curved portions, a peripheral region located between an end portion of the substrate and the display region, a plurality of scan lines extending in a first direction, a plurality of signal lines extending in a second direction, at least one gate driver arranged in the peripheral region and coupled to the scan lines, a signal line coupling circuit arranged in the peripheral region and coupled to the signal lines, a plurality of terminals aligned in the peripheral region, and a plurality of wiring lines coupling the terminals and the signal line coupling circuit.

In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.

An inspection circuit is properly protected in a display device, in which a driver IC is not on a terminal area. A liquid crystal display device includes a TFT substrate including a display area, in which video signal lines are formed, and a terminal area. A counter substrate overlaps with the display area of the TFT substrate. The counter substrate and the TFT substrate are adhered by a seal material, and the display area is formed in an area surrounded by the seal material. The flexible wiring circuit substrate connects to the terminal area. The driver IC, which supplies video signals to the video signal lines, is not installed in the terminal area. An inspection circuit is formed between the display area and the terminal area, and the inspection circuit overlaps with the counter substrate in a plan view.

An inspection circuit is properly protected in a display device, which the driver IC is not on the terminal area. A liquid crystal display device comprising a TFT substrate having a display area, in which video signal lines are formed, and a terminal area; a counter substrate overlapping with the display area of the TFT substrate; the counter substrate and the TFT substrate are adhered by the seal material, the display area is formed in an area surrounded by the seal material; wherein the flexible wiring circuit substrate connects to the terminal area, the driver IC, which supplies video signals to the video signal lines, is not installed in the terminal area, the inspection circuit is formed between the display area and the terminal area, wherein the inspection circuit overlaps with the counter substrate in a plan view.

Display device having an inspection circuit located between the edge of a counter substrate and a selector circuit

This invention envisages flexible wiring substrate terminals serving to connect with the wires for preventing dielectric breakdown caused by static electricity during the manufacturing process, and reducing the number of the flexible wiring substrate terminals. On a mother TFT substrate, signal lines extend over each liquid crystal cell in a manner flanking a scribe line between the adjacent liquid crystal cells. The signal lines of each liquid crystal cell are connected with connecting lines striding the scribe line. This reduces the number of static electricity countermeasure wires extending from the flexible wiring substrate terminals of each liquid crystal cell. Once completed, the individual liquid crystal cells are separated from one another, with no adverse effects caused by the connecting lines.

Growing community of inventors

Tokyo, Japan

Kentaro Agata