EP 2883090 A1 20150617 - LIGHT GUIDE PLATE COMPRISING DECOUPLING ELEMENTS
Title (en)
LIGHT GUIDE PLATE COMPRISING DECOUPLING ELEMENTS
Title (de)
LICHTFÜHRUNGSPLATTE MIT AUSKOPPELELEMENTEN
Title (fr)
PLAQUE DE GUIDAGE DE LUMIÈRE COMPORTANT DES ÉLÉMENTS D'ÉMISSION
Publication
Application
Priority
- EP 12180245 A 20120813
- EP 2013066711 W 20130809
- EP 13747406 A 20130809
Abstract (en)
[origin: WO2014026923A1] The invention relates to a planar light distribution module for a display, comprising a light guide plate, through which light that can be coupled via at least one lateral surface can propagate by means of total reflection, and comprising at least one planar decoupling system (2) which is mounted on one or both main surfaces of the light guide plate (1), is in optical contact with said plate and contains a plurality of holographic optical elements (13) which are designed in such a way that they can decouple light from the light guide plate (1). The light distribution module is characterised in that the holographic optical elements (13) are arranged in the decoupling system (2) without translation symmetry. The invention also relates to an optical display, in particular an electronic display which contains a light distribution module according to the invention.
IPC 8 full level
CPC (source: CN EP KR US)
F21S 8/00 (2013.01 - CN); G02B 5/32 (2013.01 - US); G02B 6/0035 (2013.01 - EP KR US); G02B 6/005 (2013.01 - CN US); G02B 6/0051 (2013.01 - EP KR US); G02B 6/0061 (2013.01 - EP KR US); G02F 1/133603 (2013.01 - CN); G02F 1/133606 (2013.01 - CN)
Citation (search report)
See references of WO 2014026923A1
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
DOCDB simple family (publication)
WO 2014026923 A1 20140220; CN 104704407 A 20150610; EP 2883090 A1 20150617; IN 1583DEN2015 A 20150703; JP 2015531886 A 20151105; JP 6437435 B2 20181212; KR 20150043390 A 20150422; RU 2015108650 A 20161010; TW 201421085 A 20140601; TW I617848 B 20180311; US 2015192725 A1 20150709
DOCDB simple family (application)
EP 2013066711 W 20130809; CN 201380053455 A 20130809; EP 13747406 A 20130809; IN 1583DEN2015 A 20150225; JP 2015525899 A 20130809; KR 20157006143 A 20130809; RU 2015108650 A 20130809; TW 102128782 A 20130812; US 201314420964 A 20130809