US 2011/0234931 A1Published application

Liquid crystal display device

AssigneeSharp Kabushiki Kaisha

InventorsKazutaka Hanaoka, Katsufumi Ohmuro, Kunihiro Tashiro, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Yasuhiro Ohno, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa, Takahiro Sasaki

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Abstract

The technology presented herein has a feature of providing a liquid crystal display device of an excellent viewing angle characteristic and high brightness, including: liquid crystals containing polymerizable monomers between a first substrate with a pixel electrode having micro slits and a second substrate facing the first substrate; wherein the monomers are polymerizable with voltage applied to the liquid crystals; and an alignment orientation of the liquid crystals is controllable to a direction of extending the micro slit, wherein the pixel electrode includes: a direct coupling part electrically connected to a switching element; a capacitive coupling part electrically insulated from the switching element, and a space between the direct and capacitive coupling parts, wherein directions in which the micro slits are extended along the direct and capacitive coupling parts are orthogonal to each other.

Claims9

Dependent claims

A liquid crystal display device comprising:

liquid crystals having negative dielectric anisotropy and are vertically aligned when voltage is not applied between a first substrate provided with a pixel electrode having micro slits and a second substrate facing the first substrate;
and
an alignment orientation of the liquid crystals is controllable to a direction in which the micro slits are extended,
wherein the pixel electrode includes:
a direct coupling part which is electrically connected to a switching element;
and
a capacitive coupling part which is electrically insulated from the switching element, and which forms capacitance with a control capacitance electrode which has a same potential as that of a source electrode of the switching element, wherein a smaller voltage is applied to the capacitive coupling part when the capacitive coupling part is driven than that to the direct coupling part,
wherein the direct coupling part and the capacitive coupling part are isolated from each other at a border of the control capacitance electrode and/or a storage capacitor bus line.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/152,473Filed 3 Jun 2011
Priority: JP 2005-15809430 May 2005
Published: 29 Sep 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G02F 1/13439
Electrodes: characterised by their electrical, optical, physical properties; materials therefor; method of making
C09K 19/38
Characterised by the chemical structure of the liquid crystal components , e.g. by a specific unit: polymers
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 1/133711
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers: by organic films, e.g. polymeric films

Family

Application11/441,342Continuation · filed 26 May 2006
Application12/691,230Division · filed 21 Jan 2010
Application13/152,473Division
Application12/691,230Continuation
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From the US filing history. Foreign family members aren’t listed.