EP 4370827 A1 20240522 - DISPLAY DEVICE WITH WAVEGUIDE-BASED TALBOT ILLUMINATOR
Title (en)
DISPLAY DEVICE WITH WAVEGUIDE-BASED TALBOT ILLUMINATOR
Title (de)
ANZEIGEVORRICHTUNG MIT WELLENLEITERBASIERTEM TALBOT-ILLUMINATOR
Title (fr)
DISPOSITIF D'AFFICHAGE À ILLUMINATEUR TALBOT À BASE DE GUIDE D'ONDES
Publication
Application
Priority
- US 202163222224 P 20210715
- US 202117525211 A 20211112
- US 2022036987 W 20220713
Abstract (en)
[origin: WO2023287897A1] A waveguide illuminator (104) for illuminating a display panel includes an input waveguide (106), a waveguide splitter (112) coupled to the input waveguide (106), and a waveguide array (116) coupled to the waveguide splitter (112). The waveguide array (116) includes an array of out-couplers (120) out-coupling portions of the split light beam to form an array of out-coupled beam portions (122) for illuminating a display panel. The out-coupled beam portions (122) undergo optical interference and form a Talbot pattern of illumination correlated with pixel array of the display panel, enabling an optical throughput increase by centering individual Talbot peaks on the display panel pixels.
IPC 8 full level
F21V 8/00 (2006.01); G02B 5/18 (2006.01); G02B 6/12 (2006.01); G02B 6/124 (2006.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01); G02B 27/10 (2006.01); G02B 27/42 (2006.01)
CPC (source: EP)
G02B 5/1819 (2013.01); G02B 6/0035 (2013.01); G02B 6/12004 (2013.01); G02B 6/124 (2013.01); G02B 27/0172 (2013.01); G02B 27/425 (2013.01); G02B 27/4272 (2013.01); G02B 2006/12097 (2013.01); G02B 2006/12107 (2013.01); G02B 2006/1215 (2013.01); G02B 2006/12176 (2013.01); G02B 2027/0114 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2023287897 A1 20230119; EP 4370827 A1 20240522; TW 202319809 A 20230516
DOCDB simple family (application)
US 2022036987 W 20220713; EP 22751921 A 20220713; TW 111119299 A 20220524