US 8,786,534 B2Granted

Liquid crystal display device

AssigneeJapan Display Inc.

InventorsMasato Kesho, Masanobu Nonaka, Kazuhiro Takahashi, Toshimasa Yonekura

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Abstract

According to one embodiment, a liquid crystal display device includes a first substrate including a first gate line and a second gate line, a storage capacitance line, a first source line and a second source line, a switching element, and a pixel electrode surrounded by the first gate line, the second gate line, the first source line and the second source line, the pixel electrode including a contact portion which is put in contact with the switching element, a first main pixel electrode and a second main pixel electrode, a second substrate including a common electrode and a liquid crystal layer held between the first substrate and the second substrate.

Claims20

Dependent claims

A liquid crystal display device comprising:

a first substrate including a first gate line and a second gate line which extend in a first direction and are disposed with a first pitch along a second direction crossing the first direction, a storage capacitance line which is located at a substantially middle point between the first gate line and the second gate line and extends in the first direction, a first source line and a second source line which extend in the second direction and are disposed with a second pitch, which is less than the first pitch, along the first direction, a switching element which is electrically connected to the first gate line and the first source line, and a pixel electrode surrounded by the first gate line, the second gate line, the first source line and the second source line, the pixel electrode including a contact portion which is located above the storage capacitance line, is put in contact with the switching element and extends in the first direction, a first main pixel electrode which is continuous with a part of the contact portion, which is located on the first source line side, and extends in the second direction, and a second main pixel electrode which is continuous with a part of the contact portion, which is located on the second source line side, and extends in the second direction;
a second substrate including a common electrode including main common electrodes which are located between the first main pixel electrode and the second main pixel electrode, above the first source line, and above the second source line, respectively, and extend in the second direction;
and
a liquid crystal layer including liquid crystal molecules held between the first substrate and the second substrate.

1 more element

A liquid crystal display device comprising:

a first substrate including a gate line and a storage capacitance line each extending in a first direction, a first insulation film covering the gate line and the storage capacitance line, a source line formed on the first insulation film and extending in a second direction crossing the first direction, a switching element electrically connected to the gate line and the source line, a second insulation film covering the source line and the switching element, a third insulation film covering the second insulation film, and a pixel electrode which is formed on the third insulation film and disposed in a pixel having a greater length in the second direction than in the first direction, the pixel electrode including a contact portion which is located above the storage capacitance line at a substantially central portion of the pixel, extends in the first direction, and is put in contact with the switching element via a first contact hole formed in the second insulation film and a second contact hole formed in the third insulation film, and a first main pixel electrode and a second main pixel electrode which are continuous with the contact portion and extend in the second direction;
a second substrate including a common electrode including main common electrodes which are located between the first main pixel electrode and the second main pixel electrode, and above the source line, respectively, and extend in the second direction;
and
a liquid crystal layer including liquid crystal molecules held between the first substrate and the second substrate.

1 more element

A liquid crystal display device comprising:

a first substrate including a first gate line and a second gate line which extend in a first direction, a storage capacitance line which is located at a substantially middle point between the first gate line and the second gate line and extends in the first direction, a first source line and a second source line which extend in a second direction crossing the first direction, and a pixel electrode formed of the same material as the first source line and the second source line, the pixel electrode including a sub-pixel electrode which is located above the storage capacitance line and extends in the first direction, a first main pixel electrode which is continuous with a part of the sub-pixel electrode, which is located on the first source line side, and extends in the second direction, and a second main pixel electrode which is continuous with a part of the sub-pixel electrode, which is located on the second source line side, and extends in the second direction;
a second substrate including a common electrode including main common electrodes which are located between the first main pixel electrode and the second main pixel electrode, above the first source line, and above the second source line, respectively, and extend in the second direction;
and
a liquid crystal layer including liquid crystal molecules held between the first substrate and the second substrate.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 13/614,344Filed 13 Sep 2012
Priority: JP 2011-21108027 Sep 2011
Published: US 2013/0076611 A128 Mar 2013
Granted: 22 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

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 1/134309
Electrodes: characterised by their geometrical arrangement
G02F 1/134363
Characterised by their geometrical arrangement: for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
G02F 1/133738
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers: for homogeneous alignment

Family

US 2013/0076611 A1Pre-grant publication · published 28 Mar 2013
US 8,786,534 B2This patent

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

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