Japan Display Inc.

Panasonic Liquid Crystal Display Co., Ltd.

Hitachi Displays, Ltd.

Sadafumi Hirai

Hiroaki Miwa

Keiichiro Ashizawa

Mitsuo Nakatani

Takao Tanaka

Shinichi Kawabe

Masahiro Ieda

Makoto Sasaki

Kazuyuki Ito

Setsuo Kobayashi

Katsuhiko Ishii

The display device includes a substrate, a transistor, a leveling film, a display element, a partition wall, and at least one dam. The substrate has a display region and a peripheral region surrounding the display region. The transistor is located over the display region. The leveling film is located over the display region and covers the transistor. The display element is located over the leveling film and includes a pixel electrode electrically connected to the transistor. The partition wall covers an edge portion of the pixel electrode. The at least one dam is located over the peripheral region, is spaced away from the leveling film, and surrounds the display region. The at least one dam has a base and stopper. The base includes a material included in at least one of the leveling film and the partition wall.

Display device

A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.

Liquid crystal display device

A liquid crystal display device is provided that includes a pair of substrates which are arranged to face each other with a liquid crystal therebetween, and columnar spacers that are substantially equal in height formed on a liquid-crystal-side surface of one of the pair of substrates, where the columnar spacers include a first columnar spacer which is in contact with a liquid-crystal-side surface of the other substrate of the pair of substrates and a second columnar spacer which is not contact with the liquid-crystal-side surface of that other substrate.

To provide a liquid crystal display device in which a seal width at a cutting portion of substrates is small and defects caused at the time of cutting the substrates can be reduced. There is provided a liquid crystal display device including a liquid crystal display panel having: a first substrate; a second substrate; a sealing material through which the first substrate and the second substrate are stuck together; and a liquid crystal enclosed inside a liquid crystal enclosure area encircled by the first substrate, the second substrate, and the sealing material, wherein the sealing material includes a ring portion in a ring shape which configures the liquid crystal enclosure area and whose whole circumference is closed, and a first extension portion and a second extension portion, each of which is integrally connected to the ring portion and is arranged outside the ring portion, the first extension portion extends up to a cut-end portion of a first side of the liquid crystal display panel, the second extension portion extends up to a cut-end portion of a second side of the liquid crystal display panel, the second side being opposed to the first side, and in a state where the first substrate and the second substrate are stuck together, W&#x2266;W&#x2266;1.2Wis satisfied where Wrepresents a seal width of the first extension portion and a seal width of the second extension portion, and Wrepresents a seal width of the ring portion.

Liquid crystal display device and manufacturing method thereof

Growing community of inventors

Mobara, Japan

Sadafumi Hirai