US 2015/0085232 A1Published application

Liquid crystal display

AssigneeJapan Display Inc.

InventorsTakato HIRATSUKA, Osamu ITOU, Daisuke SONODA, Toshimasa ISHIGAKI

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Abstract

Pixel electrodes and a common electrode are formed on a first panel. A wall is formed on the first panel. The wall includes a large insulating wall that is made of an insulating material and projects toward a second panel, and a wall electrode part that covers a side wall of the large insulating wall and functions as the pixel electrode or the common electrode. The wall includes a side surface on which an alignment film that defines an alignment of liquid crystal molecules of a liquid crystal layer is formed. The side wall of the wall is inclined with respect to a direction perpendicular to the first panel and the second panel. With this configuration, in a liquid crystal display device having the wall electrode, light leakage at the time of displaying a black image can be reduced.

Claims8

Dependent claims

A liquid crystal display device, comprising:

a first panel having pixel electrodes disposed in a plurality of pixels respectively, and a common electrode;
a second panel facing the first panel and having a black matrix which partitions two adjacent pixels;
a liquid crystal layer disposed between the first panel and the second panel;
and
a wall including
an insulating wall made of an insulating material, formed in the first panel, and located in a boundary between two adjacent pixels,
a wall electrode which covers a side surface of the insulating wall and functions as the pixel electrode or the common electrode, and
an alignment film formed on a side surface of the wall and covering the wall electrode, the alignment film defining an alignment of liquid crystal molecules included in the liquid crystal layer,
wherein the side surface of the wall on which the alignment film is formed is inclined with respect to a direction perpendicular to the first panel and the second panel.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/490,717Filed 19 Sep 2014
Priority: JP 2013-19591020 Sep 2013
Published: 26 Mar 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G02F 1/134363
Characterised by their geometrical arrangement: for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
G02F 1/133377
Constructional arrangements; Manufacturing methods: cells with plural compartments or having plurality of liquid crystal microcells partitioned by…
G02F 1/133707
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers: structures for producing distorted electric fields, e.g.…
G02F 1/133776
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers: having structures locally influencing the alignment, e.g.…