Presentation 2008/7/17
Improved Contrast Ratio in In-Plane Switching Liquid Crystal Displays by Using Quantitative Analysis of Depolarized Light Leakage from Component Materials
Yuka UTSUMI,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) The degree of imperfection was defined as the independent intrinsic index of the degree of degraded contrast ratio for each component material to analyze the light leakage in the black state. We clarified that color filters and liquid crystal layers drastically degrade the contrast ratio because of the light leakage caused by their scattered light. The direct observation of color filters by using STEM and the scattering index of liquid crystal layer gives the effective guidelines for reducing light leakage intensity. By using these guidelines, we have made an IPS-Pro LCD with the contrast ratio of 1500:1.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) In-plane switching LCD / Contrast ratio / Light leakage / Light scattering
Paper # EID2008-17
Date of Issue

Conference Information
Committee EID
Conference Date 2008/7/17(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To Electronic Information Displays (EID)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improved Contrast Ratio in In-Plane Switching Liquid Crystal Displays by Using Quantitative Analysis of Depolarized Light Leakage from Component Materials
Sub Title (in English)
Keyword(1) In-plane switching LCD
Keyword(2) Contrast ratio
Keyword(3) Light leakage
Keyword(4) Light scattering
1st Author's Name Yuka UTSUMI
1st Author's Affiliation Materials Research Laboratory, Hitachi, Ltd.()
Date 2008/7/17
Paper # EID2008-17
Volume (vol) vol.108
Number (no) 153
Page pp.pp.-
#Pages 4
Date of Issue