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US 2006/0050218 A1Published application
In-plane switching mode liquid crystal display device
AssigneeLG Display Co., Ltd.
InventorHeume Baek
Life of this patent
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Abstract
An IPS mode LCD device is disclosed in which a retardation layer is formed in a reflective part of unit pixel region to efficiently operate both transmitting and reflective modes and to improve the contrast ratio, the unit pixel region having a transmitting part and a reflective part, wherein a cell gap in the transmitting part is substantially the same as a cell gap in the reflecting part.
Claims17
An In-Plane Switching (IPS) mode LCD device, comprising:
- gate and data lines, substantially perpendicular to each other on a first substrate defining at least one unit pixel region having a transmitting part and a reflective part;
- a thin film transistor near a crossing of the gate and data lines;
- a reflective plate in the reflective part;
- a passivation layer on surface of the first substrate including the reflective plate;
- a common line substantially parallel to the gate line;
- a common electrode extending from the common line;
- a pixel electrode, substantially parallel to the common electrode;
- a retardation layer in the reflective part on the pixel electrode;
- a second substrate opposite to the first substrate;
- a liquid crystal layer between the first and second substrates;
- and
- first and second polarizing sheets on outer surfaces of the first and second substrates respectively.
9 more elements
An In-Plane Switching IPS mode LCD device, comprising:
- gate and data lines substantially perpendicular to each other on a substrate defining at least one unit pixel region having a transmitting part and a reflective part;
- a thin film transistor near a crossing of the gate and data lines;
- a reflective plate in the reflective part;
- a passivation layer on surface of the first substrate including the reflective plate;
- a common line substantially parallel to the gate line;
- a common electrode extending from the common line;
- a pixel electrode substantially parallel to the common electrode;
- and
- a retardation layer in the reflective part on the pixel electrode.
6 more elements
Dependencies are inferred from the claim text.