TWI256496B - Liquid crystal display - Google Patents
Liquid crystal displayInfo
- Publication number
- TWI256496B TWI256496B TW93128094A TW93128094A TWI256496B TW I256496 B TWI256496 B TW I256496B TW 93128094 A TW93128094 A TW 93128094A TW 93128094 A TW93128094 A TW 93128094A TW I256496 B TWI256496 B TW I256496B
- Authority
- TW
- Taiwan
- Prior art keywords
- liquid crystal
- retardation
- retardation plate
- plate
- crystal display
- Prior art date
Links
Landscapes
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
The circularly polarized light initiated liquid crystal display element with a vertical alignment mode is constructed with a light source BL, a circular polarizer structure P containing a first polarizing plate 6 and a first retardation plate 4, a variable retarder structure VR containing a liquid crystal cell C and a circular analyzer structure A containing a second polarizing plate 5 and a second retardation plate 3 in sequence. The first and second retardation plates 4, 3 are uniaxial quarter-wave plates imparting 1/4 wavelength retardation between light with a specified wavelength passing through a fast axis and that passing through a slow axis. The liquid crystal display element is characterized by disposing an optically uniaxial third retardation plate 2 with anisotropy of refractive indexes satisfying a relation nx > ny=nz between the first polarizing plate 6 and the first retardation plate 4 so as to make its slow axis nearly parallel to the transmission axis of the first polarizing plate 6 and further an optically negative and uniaxial fourth retardation plate 1 with anisotropy of refractive indexes satisfying a relation nx=ny > nz between the liquid crystal cell C and the first retardation plate 4 or the second retardation plate 3.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003276246A JP2005037784A (en) | 2003-07-17 | 2003-07-17 | Liquid crystal display element |
Publications (1)
Publication Number | Publication Date |
---|---|
TWI256496B true TWI256496B (en) | 2006-06-11 |
Family
ID=34212632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93128094A TWI256496B (en) | 2003-07-17 | 2004-09-16 | Liquid crystal display |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2005037784A (en) |
TW (1) | TWI256496B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4624987B2 (en) * | 2003-08-14 | 2011-02-02 | エルジー・ケム・リミテッド | Compound optical compensation C plate including two or more C plates having different dispersion ratio values and liquid crystal display device using the same |
US7267849B2 (en) * | 2004-03-02 | 2007-09-11 | Nitto Denko Corporation | Compensator for liquid crystal display |
JP2006309105A (en) | 2005-03-30 | 2006-11-09 | Casio Comput Co Ltd | Liquid crystal display device |
KR20100029260A (en) * | 2005-05-11 | 2010-03-16 | 닛토덴코 가부시키가이샤 | Polarizing plate with optical compensation layer and image display employing it |
JP2007041126A (en) * | 2005-08-01 | 2007-02-15 | Toshiba Matsushita Display Technology Co Ltd | Liquid crystal display device |
JP4917488B2 (en) * | 2006-07-12 | 2012-04-18 | 日東電工株式会社 | Polarizing plate with optical compensation layer and method for producing the same, liquid crystal panel using the same, liquid crystal display device and image display device |
JP5252615B2 (en) * | 2007-01-09 | 2013-07-31 | 日東電工株式会社 | Liquid crystal panel and liquid crystal display device |
JP2010224012A (en) * | 2009-03-19 | 2010-10-07 | Asahi Kasei E-Materials Corp | Multi-domain vertical alignment liquid crystal panel and liquid crystal display device comprising the same |
CN103488006A (en) * | 2013-09-30 | 2014-01-01 | 汕头市锐科电子有限公司 | Vertical orientation liquid crystal display integrating touch control function |
JP2017194672A (en) * | 2016-04-18 | 2017-10-26 | 日東電工株式会社 | Liquid crystal display |
-
2003
- 2003-07-17 JP JP2003276246A patent/JP2005037784A/en active Pending
-
2004
- 2004-09-16 TW TW93128094A patent/TWI256496B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2005037784A (en) | 2005-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |