Unlock instant, AI-driven research and patent intelligence for your innovation.

In-plane switching mode liquid crystal display device

Inactive Publication Date: 2001-05-31
LG DISPLAY CO LTD
View PDF0 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional IPS mode LCD has the following problems.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • In-plane switching mode liquid crystal display device
  • In-plane switching mode liquid crystal display device
  • In-plane switching mode liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0026] In an in-plane switching mode liquid crystal display device implemented according to the present invention, the common electrode is formed over the passivation layer, and the passivation layer and the gate insulator do not weaken the electric field applied into the liquid crystal layer. Consequently, the driving voltage may be lowered. Further, because the area for storage capacitor can be decreased, the aperture ratio is improved.

[0027] Moreover, the common electrode may be formed to overlap the data bus lines to remove the crosstalk problem. In this case, because the pixel region can be enlarged, the aperture ratio becomes much more improved. In order to prevent signal delay in the data bus lines w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

An in-plane switching mode liquid crystal display device comprises a substrate, a pixel region, a common bus line, a thin film transistor, a data electrode, a passivation layer over the data electrode and the thin film transistor, and a common electrode. The pixel region lies on the substrate. The common bus line is aligned in the pixel region. The thin film transistor is coupled to the pixel region and the pixel regions comprises a gate electrode and a gate insulator having a portion overlying the gate electrode. The data electrode lies over the gate insulator and has a portion overlying the common bus line to form a first storage capacitor. The passivation layer overlies the data electrode and the thin film transistor. The common electrode overlies the passivation layer and has a portion overlying the data electrode to form a second storage capacitor.

Description

[0001] A. Field of the Invention[0002] The present invention relates to a liquid crystal display device, and more particularly to an in-plane switching mode liquid crystal display device.[0003] B. Description of the Related Art[0004] Recently, the thin film transistor liquid crystal display device (TFT LCD) has been used as a display device of many applications such as a portable television and a notebook computer, but such TFT LCD has a small viewing angle.[0005] In order to solve this problem, twisted nematic LCDs having optical compensation plates and a multi-domain LCD, and so forth, have been introduced. In these LCDs, however, the color of the image is shifted because the contrast ratio depends on the viewing angle direction.[0006] For a wide viewing angle, an in-plane switching mode LCD is disclosed, for example, in JAPAN DISPLAY 92 p547, Japanese Patent Unexamined Publication No. 7-36058, Japanese Patent Unexamined Publication No. 7-225388, and ASIA DISPLAY 95 P707.[0007] FI...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): G02F1/1343G02F1/1362
CPCG02F1/134363G02F1/136213G02F1/1343
Inventor KOMATSU, HIROSHI
Owner LG DISPLAY CO LTD