US 9,285,612 B2Granted

In-plane switching mode liquid crystal display device

AssigneeHydis Technologies Co., Ltd.

InventorDong Hoon Lim

Life of this patent

Estimating the term…

Loading patent…

Abstract

Disclosed is an in-plane switching mode liquid crystal display, in which a pixel electrode and a common electrode are formed on the same substrate. The display includes a first substrate having a first conductive layer and second conductive layer, the first conductive layer and second conductive layer formed on each surface of the first substrate; a second substrate has a transparent pixel electrode and a transparent common electrode formed on one surface of the second substrate, facing the second conductive layer; an electrical connection part is installed to electrically connect the second conductive layer to the transparent common electrode, wherein a common voltage applied to the transparent common electrode is applied to the second conductive layer through the electrical connection part. This arrangement prevents generation of static electricity to suppress a whitening phenomenon due to liquid crystal polarization in a liquid crystal layer, thereby improving display image quality.

Claims4

Dependent claims

An in-plane switching mode liquid crystal display comprising:

a first substrate having a first conductive layer and second conductive layer, the first conductive layer being formed on one surface of the first substrate and second conductive layer being formed on the other surface of the first substrate;
a second substrate having a transparent pixel electrode and a transparent common electrode formed on one surface of the second substrate, facing the second conductive layer;
an electrical connection part installed to electrically connect the second conductive layer to the transparent common electrode;
and
a color filter layer which is formed on the first substrate and which includes color filter patterns,
wherein a common voltage applied to the transparent common electrode is applied to the second conductive layer through the electrical connection part, the second conductive layer is a patterned conductive light-shielding layer formed between the color filter patterns, and the first conductive layer is patterned in a shape corresponding to the light-shielding layer.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/166,224Filed 28 Jan 2014 · division
Priority: KR 10-2007-011592914 Nov 2007
Published: US 2014/0313460 A123 Oct 2014
Granted: 15 Mar 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 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 1/0136
For the control of the intensity, phase, polarisation or colour: for the control of polarisation, e.g. state of polarisation [SOP] control,…
G02F 1/133512
Filters, e.g. light shielding masks: light shielding layers, e.g. black matrix
G02F 1/133514
Filters, e.g. light shielding masks: colour filters

Family

Application12/270,145Parent of this division · filed 13 Nov 2008
US 2014/0313460 A1Pre-grant publication · published 23 Oct 2014
US 8,687,154 B2Parent of this division
US 2009/0122240 A1Published application
US 9,285,612 B2This patent

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