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

LCD element

A technology of liquid crystal display elements and insulating films, which is applied in the fields of electrical components, semiconductor/solid-state device manufacturing, optics, etc.

Inactive Publication Date: 2003-05-14
OPTREX CORP
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the above-mentioned problems, the present invention provides a liquid crystal display element, comprising a pair of support substrates, each support substrate has a transparent electrode structured in a predetermined shape, and at least one transparent electrode 11 formed on one side of the liquid crystal The insulating film 12, wherein the insulating film is a film that provides a refractive index difference of not more than 0.15 relative to the refractive index of the transparent electrode, and the thickness of the film is at least ±500 Å in a 500 μm radius region

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
  • LCD element
  • LCD element
  • LCD element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] First, explain how the ITO bone display phenomenon occurs, and then explain the preferred aspects of the present invention.

[0024] Example.

[0025] image 3 Commonly used liquid crystal display elements are shown, with structural elements shown in individual cases.

[0026] The liquid crystal display element 1 includes a pair of supporting substrates, namely, a transparent substrate 10 on the display / observation plane side and a transparent substrate 20 on the rear plane side. Both the transparent substrates 10, 20 are made of, for example, glass (artificial resin). And on the inner surface side of the transparent substrate, ITO transparent electrodes 11, 21 formed opposite to each other.

[0027] On each transparent electrode 11, 21, an alignment film 13 or 23 is formed by intervening the insulating film 12 or 22, and between the alignment wave ends 13, 23 weaves a path 30, such as TN. Although not shown in the figure, a silica film (silicon dioxide) as an under...

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 liquid crystal display element has a pair of supporting substrates 10, 20 each having a transparent electrode patterned in a predetermined shape and an insulation film 12 formed on at least one transparent electrode 11 at a side of liquid crystal wherein the insulation film is a film which provides a refractive index difference of not more than 0.15 with respect to the refractive index of the transparent electrode and has a film thickness distribution of at least + / -500 ANGSTROM in the area of a radius of 500 mu m, whereby a phenomenon of ITO bone appearance can be avoided without causing an increase of manufacturing cost and a reduction of productivity, and both requirements of the improvement of non-coloration characteristics of white and black and avoidance of a phenomenon of ITO bone appearance are satisfied.

Description

technical field [0001] The present invention relates to liquid crystal display elements. More specifically, it relates to a technique for preventing a phenomenon that occurs when a transparent electrode made of ITO is observed in a reflective state. Background technique [0002] Generally, ITO (Indium Tin Oxide) is used for transparent electrodes utilized in liquid crystal display elements, and electrode patterns are formed by constructing conductive ITO thin films. The refractive index of ITO is about 1.9, which is greater than the refractive index of about 1.5 with a glass substrate as a support substrate. [0003] Therefore, the presence and absence of ITO provide different reflection intensities when external light enters the display element. In this case, the transparent ITO pattern becomes visible, whereby the display quality becomes significantly deteriorated. This phenomenon is called "ITO bone appearance (bone appearance)", also known as "visible electrode". [...

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
IPC IPC(8): G02F1/1333G02F1/1335G02F1/1337
CPCG02F1/133371G02F1/133502G02F1/133711G02F1/1333
Inventor 尾関正雄H·哈勃泽特尔
Owner OPTREX CORP