US 2014/0368778 A1Published application

Liquid crystal display device

AssigneeJapan Display Inc.

InventorsKoji YAMAMOTO, Tetsuya IIZUKA

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Abstract

In one embodiment, a first shield electrode and a second shield electrode are arranged on a first substrate. A first source line and a second source line are arranged facing the first and second shield electrodes through an insulating layer, respectively. A first main common electrode and a second main common electrode are formed facing the first and second source lines through an insulating layer, respectively. A main pixel electrode is formed so as to locate between the first and second main common electrodes. A second substrate includes a third main common electrode and a fourth main common electrode facing the first and second main common electrodes, respectively. A liquid crystal layer is held between the first and second substrates. The first, second, third and fourth main common electrodes are set to the same electric potential.

Claims16

Dependent claims

A liquid crystal display device,

comprising,
a first substrate including;
a first insulating layer,
a first shield electrode and a second shield electrode arranged on the first insulating layer and extending along a first direction, the first and second shield electrodes locating apart from each other in a second direction orthogonally crossing the first direction,
an auxiliary capacitance line arranged on the first insulating layer and extending in the second direction, the auxiliary capacitance line integrally formed with the first and second shield electrodes,
a second insulating layer formed on the first insulating layer and the first and second shield electrodes,
a first source line arranged on the second insulating layer facing the first shield electrode and extending in the Brat direction,
a second source line arranged on the second insulating layer facing the second shield electrode and extending in the first direction,
a third insulating layer formed on the second insulating layer and the first and second source lines,
a first main common electrode formed on the third insulating layer facing the first source line and extending in the first direction,
a second main common electrode formed on the third insulating layer facing the second source line and extending in the first direction, and
a main pixel electrode formed on the third insulating layer so as to locate between the first main common electrode and the second main common electrode, and extend in the first direction,
a second substrate;
a liquid crystal layer held between the first substrate and the second substrate and having liquid crystal molecules,
wherein the first and second main common electrodes are set to the same electric potential.

12 more elements

A liquid crystal display device, comprising:

a first substrate including;
a first insulating layer,
a first shield electrode and a second shield electrode arranged on the first insulating layer and extending along a first direction, the first and second shield electrodes locating apart from each other in a second direction orthogonally crossing the first direction,
a second insulating layer formed on the first insulating layer and the first and second shield electrodes,
a first source line arranged on the second insulating layer facing the first shield electrode and extending in the first direction,
a second source line arranged on the second insulating layer facing the second shield electrode and extending in the first direction,
a third insulating layer formed on the second insulating layer and the first and second source lines,
a first main common electrode formed on the third insulating layer facing the first source line and extending in the first direction,
a second main common electrode formed on the third insulating layer facing the second source line and extending in the first direction, and
a main pixel electrode formed on the third insulating layer so as to locate between the first and second main common electrodes and extend in the first direction,
a second substrate:
a liquid crystal layer held between the first and second substrates and having liquid crystal molecules,
wherein the first and second main common electrodes are set to the same electric potential.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/475,147Filed 2 Sep 2014
Priority: JP 2012-09777123 Apr 2012
Published: 18 Dec 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G02F 1/134309
Electrodes: characterised by their geometrical arrangement
G02F 1/133345
Constructional arrangements; Manufacturing methods: insulating layers
G02F 1/134363
Characterised by their geometrical arrangement: for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
G02F 1/13439
Electrodes: characterised by their electrical, optical, physical properties; materials therefor; method of making

Family

Application13/761,872Division · filed 7 Feb 2013
Application14/475,147Division
US 2013/0278852 A1Published application
US 8,867,006 B2Related patent
US 9,104,075 B2Related patent
US 2014/0368778 A1This patent

From the US filing history. Foreign family members aren’t listed.