US 6,388,727 B1 · In-plane switching liquid crystal display

Abstract

A pixel in IPS LCDs according to the embodiments of the present invention is symmetrical with respect to a data line and a gate line. The data line longitudinally passes through the center of the pixel, and the gate line transversely passes through the center of the pixel. A pixel is confined to an area enclosed by two adjacent transverse common electrode lines and four longitudinal common electrodes which are branches of the common electrode lines. Among the four common electrodes, two are connected to one of the two common electrode lines, and the other two are connected to the other of the common electrode lines. Each pixel has two longitudinal common electrodes overlapped with the data line, four longitudinal pixel electrodes arranged between the common electrodes and two two-channel TFTs. Each pixel further has two storage electrodes overlapped with the pixel electrodes and electrically connected to the gate line. The storage electrode and the pixel electrode together form a storage capacitor.

Claims20

Dependent claims

A liquid crystal display comprising:

a first transparent insulating substrate;
a plurality of common electrodes formed on the first substrate in a first direction;
a gate line formed on the first substrate in a second direction;
a gate insulating layer formed on the common electrodes and the gate line so that the gate line and the common electrodes are between the first substrate and the gate insulating layer;
a pixel electrode formed between at least two of the common electrodes in the first direction;
a data line formed on the gate insulating layer along at least one of the plurality of common electrodes to be overlapped with the gate insulating layer, the data line being connected to the pixel electrode so that the gate insulating layer is between the data line and the at least one of the plurality of common electrodes;
a second transparent substrate opposite the first substrate;
a first alignment layer formed on the second substrate, wherein the first alignment layer is homogeneous and rubbed in the direction making 30-60 degrees with respect to the second direction.

5 more elements

Dependencies are inferred from the claim text.

In-plane switching liquid crystal display

Life of this patent

In-plane switching liquid crystal display

Life of this patent

Abstract

Claims20