EP 1636638 A1 20060322 - MODIFIED SKEW-ANGLE COMPENSATOR FOR LCD DISPLAYS WITH RESIDUAL RETARDANCE
Title (en)
MODIFIED SKEW-ANGLE COMPENSATOR FOR LCD DISPLAYS WITH RESIDUAL RETARDANCE
Title (de)
MODIFIZIERTER VERSATZWINKELKOMPENSATOR FÜR LCD-DISPLAYS MIT RESTRETARDIERUNG
Title (fr)
COMPENSATEUR MODIFIE D'ANGLES DE BIAIS POUR AFFICHEURS A CRISTAUX LIQUIDES A RETARDEMENT RESIDUEL
Publication
Application
Priority
- IB 2004050875 W 20040609
- US 47869103 P 20030613
Abstract (en)
[origin: WO2004111713A1] A light valve device (105) having a first optical retardance is optically coupled to a modified skew angle compensator (104), which has a second optical retardance, and the sum of the first optical retardance and the second optical retardance equals a retardance of a quarter-wave retarder over a prescribed wavelength range. A method of substantially preventing darkstate light from being transmitted to display optics (111) in a liquid crystal (LC) display includes rotating the dark state light so that a polarization beam splitter (110) transmits the light back to the source (109).
IPC 1-7
IPC 8 full level
G02F 1/13363 (2006.01); H04N 9/31 (2006.01); H04N 5/74 (2006.01)
CPC (source: EP KR)
G02F 1/133 (2013.01 - KR); G02F 1/13363 (2013.01 - EP); G09G 3/20 (2013.01 - KR); G09G 3/36 (2013.01 - KR); H04N 9/3108 (2013.01 - EP); G02F 1/133637 (2021.01 - EP); H04N 5/7441 (2013.01 - EP)
Citation (search report)
See references of WO 2004111713A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004111713 A1 20041223; CN 1806193 A 20060719; EP 1636638 A1 20060322; JP 2007528010 A 20071004; KR 20060013687 A 20060213; TW 200510805 A 20050316
DOCDB simple family (application)
IB 2004050875 W 20040609; CN 200480016420 A 20040609; EP 04736437 A 20040609; JP 2006516669 A 20040609; KR 20057023733 A 20051209; TW 93116697 A 20040610