EP 1815456 A1 20070808 - DISPLAY DEVICE WITH TIME-MULTIPLEXED LED LIGHT SOURCE
Title (en)
DISPLAY DEVICE WITH TIME-MULTIPLEXED LED LIGHT SOURCE
Title (de)
ANZEIGEVORRICHTUNG MIT ZEIT-MULTIPLEX-LED-LICHTQUELLE
Title (fr)
DISPOSITIF D'AFFICHAGE EQUIPE D'UNE SOURCE LUMINEUSE A DEL MULTIPLEXEE DANS LE TEMPS
Publication
Application
Priority
- IB 2005053789 W 20051116
- US 62975504 P 20041119
Abstract (en)
[origin: WO2006054254A1] A display device (100) has a time-multiplexed a light source (110, 200) including at least two light emitting diode (LED) devices (210, 220) that operate sequentially, and a light combiner (230, 630, 830) that outputs light from the LED devices (210, 220), the light having a first polarization when a first one of the LED devices (210) is turned on, and having a second polarization (220) when a second one of the LED devices is turned on; and a light modulator (122) that receives the light from the light combiner (230, 630, 830). The light modulator (122) and is driven to white when the first LED device (210) is turned on, and is driven to black when the second LED device (220) is turned on.
IPC 8 full level
G09G 3/34 (2006.01); G02B 27/02 (2006.01); G02F 1/1335 (2006.01); H04N 9/31 (2006.01)
CPC (source: EP KR)
G02B 26/10 (2013.01 - KR); G02B 27/102 (2013.01 - EP); G02B 27/1053 (2013.01 - EP); G02B 27/145 (2013.01 - EP); G02B 27/149 (2013.01 - EP); G02F 1/133 (2013.01 - KR); G03B 21/00 (2013.01 - KR); G09G 3/3413 (2013.01 - EP); H04N 5/74 (2013.01 - KR); H04N 9/315 (2013.01 - EP); G09G 2310/0235 (2013.01 - EP); G09G 2310/0237 (2013.01 - EP)
Citation (search report)
See references of WO 2006054254A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006054254 A1 20060526; CN 100530319 C 20090819; CN 101061530 A 20071024; EP 1815456 A1 20070808; KR 20070084273 A 20070824
DOCDB simple family (application)
IB 2005053789 W 20051116; CN 200580039760 A 20051116; EP 05807164 A 20051116; KR 20077011113 A 20070516