TWI256496B - Liquid crystal display - Google Patents

Liquid crystal display

Info

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
Application number
TW93128094A
Other languages
Chinese (zh)
Inventor
Yuzo Hisatake
Original Assignee
Toshiba Matsushita Display Tec
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Matsushita Display Tec filed Critical Toshiba Matsushita Display Tec
Application granted granted Critical
Publication of TWI256496B publication Critical patent/TWI256496B/en

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.
TW93128094A 2003-07-17 2004-09-16 Liquid crystal display TWI256496B (en)

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)

* Cited by examiner, † Cited by third party
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

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