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US 7,030,954 B2Granted
In-plane switching LCD panel
AssigneeLG.Philips LCD Co., Ltd.
InventorsJang-Jin Yoo, Hyung-Ki Hong, Ki-Hyuk Yoon
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Abstract
The present invention discloses an IPS-LCD device. The IPS-LCD device according to the present invention implements a multi-domain for a liquid crystal layer. The liquid crystal molecules are aligned in various directions with respect to each different domain. Therefore, the different domains compensate for one another such that a color shift is prevented in spite of wide viewing angles. To form the multi-domain, the present invention provides a plurality of dielectric protrusions.
Claims24
An IPS-LCD device, comprising:
- first and second substrates opposing each other;
- a gate line on the first substrate;
- a data line perpendicular to the gate line;
- a thin film transistor at a crossing portion between the gate and data lines;
- a common line parallel to the gate line;
- a plurality of common electrodes electrically connected to the common line, wherein the common electrodes are spaced apart from each other and covered by a gate-insulating layer;
- a plurality of pixel electrodes alternately arranged with the plurality of common electrodes, wherein each pixel electrode is spaced apart from an adjacent common electrode and covered by a passivation layer;
- a plurality of dielectric protrusions between the first and second substrates, wherein the dielectric protrusions are chevron-shaped dielectric protrusions that cross the plurality of common and pixel electrodes;
- and
- a liquid crystal layer between the first and second substrates, wherein the liquid crystal layer and the dielectric protrusion have different dielectric constants.
7 more elements
An in-plane-switching liquid crystal display panel, comprising:
- first and second substrates opposing each other;
- a gate line on the substrate;
- a data line perpendicular to the gate line;
- a thin film transistor at a crossing portion between the gate and data lines;
- a main common line parallel to the gate line;
- first and second auxiliary common lines perpendicular to the main common line, the first and second auxiliary common lines being parallel to and spaced apart from each other;
- a plurality of common electrodes electrically connected to the first and second auxiliary common lines, the plurality of common electrodes being spaced apart from each other;
- a plurality of pixel electrodes alternately arranged with the plurality of common electrodes, wherein each pixel electrode is spaced apart from an adjacent common electrode;
- a plurality of dielectric protrusions between the first and second substrates;
- and
- a liquid crystal layer between the first and second substrates.
8 more elements
Dependencies are inferred from the claim text.