Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Liquid crystal cell substrate fabrication method, liquid crystal cell substrate, and liquid crystal display device

A technology of liquid crystal display device and liquid crystal unit, applied in liquid crystal materials, chemical instruments and methods, optical components, etc., which can solve the problems of rising cost, increased number of processes, difficulties, etc., and achieve excellent productivity, correct optical compensation, and improved color viewing angle The effect of the characteristic

Active Publication Date: 2009-02-18
FUJIFILM CORP
View PDF32 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not only difficult to form an optically anisotropic layer with a material that can be patterned in the liquid crystal cell and to have an optically uniform retardation characteristic, but also needs to match the position of the patterned color filter, Compared with R, G, B, the optical anisotropic layer is patterned three times, so the number of steps increases, which leads to an increase in cost, which is a big problem

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 cell substrate fabrication method, liquid crystal cell substrate, and liquid crystal display device
  • Liquid crystal cell substrate fabrication method, liquid crystal cell substrate, and liquid crystal display device
  • Liquid crystal cell substrate fabrication method, liquid crystal cell substrate, and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0266]On the above-mentioned color filter 1 substrate, using a laminator (manufactured by Hitachi Industrias (Lamic II type)), the transfer materials of the above-mentioned Examples 1 to 3 were respectively heated at the above-mentioned 100° C. for 2 minutes on the substrate with rubber coating. Lamination was performed at a roll temperature of 130° C., a linear pressure of 100 N / cm, and a conveying speed of 2.2 m / min. After peeling off the temporary support and the alignment film, an optically anisotropic layer was provided on the color filter. At this time, the thickness of the optically anisotropic layer on each RGB pixel of the optically anisotropic layer differs based on the difference in thickness between the RGB pixels of the color filter, and is 3.15 μm on R, 2.75 μm on G, and 2.15 μm on B. μm. In addition, the delays Re(40) and Re(-40) on the RGB pixels are as follows.

[0267] For R, G, and B, retardation at λ of 611 nm, 545 nm, and 435 nm, respectively, was measure...

Embodiment 4～6

[0280] Except having used the color filter 2 board|substrate, it carried out similarly to Example 1, and provided the optically anisotropic layer on a color filter. At this time, the thickness of the optically anisotropic layer on each RGB pixel of the optically anisotropic layer differs based on the difference in thickness between the RGB pixels of the color filter, and is 3.15 μm on R, 2.75 μm on G, and 2.15 μm on B. μm.

[0281] In addition, the delays Re(40) and Re(-40) on the RGB pixels are as follows.

[0282] For R, G, and B, retardation at λ of 611 nm, 545 nm, and 435 nm, respectively, was measured.

[0283]

[0284] In addition, VA-LCD was prepared and evaluated in the same manner as in Example 1. As a result, there was almost no change in the black display, and no significant light leakage was observed at the corners. In addition, favorable contrast viewing angle characteristics were obtained, and the result that almost no color shift was observed at the time of...

Embodiment 7～9

[0286] Except having used the color filter 3 board|substrate, it carried out similarly to Example 1, and provided the optically anisotropic layer on a color filter. At this time, the thickness of the optically anisotropic layer on each RGB pixel of the optically anisotropic layer differs based on the difference in thickness between the RGB pixels of the color filter, and is 3.15 μm on R, 2.75 μm on G, and 2.15 μm on B. μm. In addition, the delays Re(40) and Re(-40) on the RGB pixels are as follows.

[0287] For R, G, and B, retardation at λ of 611 nm, 545 nm, and 435 nm, respectively, was measured.

[0288]

[0289] In addition, VA-LCD was prepared and evaluated in the same manner as in Example 1. As a result, there was almost no change in the black display, and no significant light leakage was observed at the corners. In addition, favorable contrast viewing angle characteristics were obtained, and the result that almost no color shift was observed at the time of black di...

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
wavelengthaaaaaaaaaa
illuminanceaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

Provided is a liquid crystal cell substrate fabrication method including: a step of forming an image having at least two different hues on a substrate and having different thicknesses for the respective hue regions; and a step of forming at least one optical anistropic layer of one axis or two axes having different film thicknesses on the respective hue regions on the image.

Description

technical field [0001] The present invention relates to a method for manufacturing a substrate for a liquid crystal cell with an optically anisotropic layer. Also, the present invention relates to a substrate for a liquid crystal cell with optical compensation, and a liquid crystal display device using the same. Background technique [0002] CRTs (cathode ray tubes) have been mainly used as display devices used in OA equipment such as word processors, notebook computers, and monitors for personal computers, mobile terminals, and televisions. In recent years, liquid crystal display devices (LCDs) have been widely used instead of CRTs because they are thin, lightweight, and consume little power. A liquid crystal display device has a liquid crystal cell and a polarizing plate. The polarizing plate is composed of a protective film and a polarizing film, and is obtained by dyeing a polarizing film composed of a polyvinyl alcohol film with iodine, stretching it, and laminating b...

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(China)
IPC IPC(8): G02F1/13363G02F1/1335G02B5/30
CPCG02F1/133516C09K19/2007G02F2413/09G02F2413/02C09K19/3068C09K2019/3408G02B5/201G02B5/3033C09K2019/0448G02F1/13363C09K2019/0429G02F2001/133565G02F1/133565G02F1/133631G02B5/30G02F1/1335
Inventor 佐藤守正网盛一郎
Owner FUJIFILM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com