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

Liquid crystal display unit and its driving method

A liquid crystal display device and liquid crystal driving technology, which can be used in identification devices, static indicators, optics, etc., and can solve problems such as residual image and image quality deterioration.

Inactive Publication Date: 2006-01-11
LG DISPLAY CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, problems such as residual images will occur, and the image quality will deteriorate significantly.

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
  • Liquid crystal display unit and its driving method
  • Liquid crystal display unit and its driving method
  • Liquid crystal display unit and its driving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] [Example 1] image 3 , Figure 11 It is a plan view of the first embodiment of the present invention. As shown in this figure, the active matrix liquid crystal display device of the present invention is equipped with: on the active matrix side glass substrate 24 (refer to Figure 13 ) a plurality of scanning lines 10, 11 formed parallel to each other; and the image signal wiring 2 perpendicular to the scanning lines 10, 11. Such scanning lines 10 and 11 and image signal wiring lines 2 are arranged in a matrix, and each grid of the formed matrix is ​​1 pixel.

[0078] In one pixel, two rows of common electrodes 12 to 15 (common electrodes 12, 13 or common electrodes 14, 15) are arranged, and in one pixel, one of these two rows of common electrodes is used as a common electrode for the pixel electrode. The electrodes are opposed to the liquid crystal driving electrodes 6 (arranged in parallel).

[0079] One common electrode is disposed above the pixel along the scanni...

Embodiment 2

[0092] [Example 2] Figure 4 , Figure 5 It is a plan view of the second embodiment of the present invention. The arrangement of the common electrodes 12 to 15 in two rows in one pixel is the same as in the first embodiment. In the active matrix liquid crystal display device of the first embodiment, any one of the liquid crystal driving electrode 6 (liquid crystal driving electrode 27) and the common electrodes 12 to 15 is intersected in each pixel to form a storage capacitor, while the second embodiment The formation method of this hold capacitor is a different method. Hereinafter, the same reference numerals are assigned to the same parts as those in the first embodiment, and description thereof will be omitted.

[0093] exist Figure 4 In the second embodiment, the storage capacitor 18 is formed by the scanning line 10 and the liquid crystal driving electrode 6 . exist Figure 5 Among them, the storage capacitor 23 is formed by the common electrodes 19-22 and the liqu...

Embodiment 3

[0094] [Example 3] Image 6 , Figure 14 It is a plan view of the third embodiment of the present invention. The arrangement of the common electrodes 12 to 15 in two rows in one pixel is the same as in the first embodiment. In the third embodiment, the image signal wiring 2, the common electrodes 12 to 15, and the liquid crystal drive electrode 6 have structures bent with respect to the alignment direction of the liquid crystal. In the common electrodes 12 to 15 , the comb-shaped electrode portion of the common electrode has a curved shape. Hereinafter, the same reference numerals are assigned to the same parts as those in the first and second embodiments, and description thereof will be omitted.

[0095] Figure 25 It is a diagram showing the relationship between the alignment direction P of the liquid crystal and the crossing angle A of each electrode when the positive dielectric constant anisotropic liquid crystal 47 is used (the common electrode 12 with a curved struct...

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

No PUM Login to View More

Abstract

The active matrix type liquid crystal display device of a transverse electric field system is comprised of two common electrodes running in parallel with one another in each pixel wherein the common electrodes are separated from one another and respectively provided with different voltages.

Description

technical field [0001] The invention relates to a large-screen active matrix liquid crystal display device with low cost, wide viewing angle, high image quality and high brightness. Background technique [0002] A horizontal electric field type liquid crystal panel in which an electric field is applied to a liquid crystal composition layer in a direction horizontal to the substrate by using a pair of comb-shaped electrodes formed on one substrate of an existing active matrix liquid crystal display device is disclosed in (Japanese Patent Laid-Open No. No. 7-36058 and JP-P 7-159786 have been put into practical use. figure 1 , Figure 8 It is a plan view of a conventional transverse electric field type liquid crystal display device. In one pixel, there is a row of common electrodes 3 that form pairs with liquid crystal drive electrodes 6 . figure 2 It is a driving waveform diagram of a conventional transverse electric field method liquid crystal dis...

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 Patents(China)
IPC IPC(8): G02F1/1343G02F1/136G02F1/1335G02F1/133G02F1/1368G09F9/30G09F9/35G09G3/20G09G3/36
CPCG09G2300/0434G09G3/3648G02F1/134363G02F1/1343
Inventor 广田直人
Owner LG DISPLAY CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com