Lg Display Co., Ltd.

Sang Yun Lee

Woon Sub Choi

Kew Seung Lee

An embodiment of a unit pixel of an in-plane switching (IPS) mode LCD device includes a plurality of pixel electrodes arranged in the unit pixel region, wherein each pixel electrode is configured to apply a pixel voltage from the data line, and a plurality of common electrodes correspondingly arranged in the unit pixel region, wherein each common electrode is configured to apply a common voltage from a common line in parallel with the data line to form electric field in conjunction with the corresponding pixel electrodes. The unit pixel region is vertically divided into over three sub-regions, at least one pixel electrode spans all sub-regions, and a bent angle of the at least one pixel electrode in a sub-region is different from the bent angle of the at least one pixel electrode in an adjacent sub-region, wherein the bent angle is measured relative to the gate line.

In-plane switching mode LCD device

An IPS mode LCD device is disclosed, in which liquid crystal molecules are aligned at multiple angles in one unit pixel region to improve response speed without reducing an aperture ratio and improve transmittance-voltage characteristics. The IPS mode LCD device includes multiple gate and data lines arranged on a first substrate to cross each other to define unit pixel regions, wherein each pixel region is divided into first, second and third sub-regions. Thin film transistors are arranged at each crossing point, common lines are parallel with the gate lines, common electrodes branch from the common lines and are bent in the first, second and third sub-regions respectively at first, second and third angles. Each pixel electrode is connected to a drain electrode of each thin film transistor and arranged in parallel with the common electrodes. A liquid crystal layer is arranged between the first substrate and a second substrate opposite to the first substrate.

A liquid crystal display device includes a liquid crystal display panel having an array substrate and a color filter substrate, a plurality of gate lines and a plurality of data lines arranged vertically and horizontally on the array substrate and defining a plurality of pixel regions, a first thin film transistor formed on the array substrate and having a first gate electrode, a first source electrode, a first drain electrode and a first active layer, and a first compensation pattern formed on at least one side of one of the first source electrode and first drain electrode of the first thin film transistor in a first pixel region at a first position of the plurality of pixel regions such that the first compensation pattern is partially overlapped by the first gate electrode.

Growing community of inventors

Gyeongsangbuk-do, South Korea

Sang Yun Lee