EP 3221738 A1 20170927 - PROJECTION SYSTEM FOR DISPLAY, IN PARTICULAR A HEADS-UP DISPLAY, AND ASSOCIATED DISPLAY
Title (en)
PROJECTION SYSTEM FOR DISPLAY, IN PARTICULAR A HEADS-UP DISPLAY, AND ASSOCIATED DISPLAY
Title (de)
PROJEKTIONSSYSTEM FÜR ANZEIGE, INSBESONDERE EINE HEAD-UP-ANZEIGE, UND ZUGEHÖRIGE ANZEIGE
Title (fr)
SYSTÈME DE PROJECTION POUR AFFICHEUR, NOTAMMENT TÊTE HAUTE, ET AFFICHEUR ASSOCIÉ
Publication
Application
Priority
- FR 1402638 A 20141121
- FR 2015053164 W 20151120
Abstract (en)
[origin: WO2016079457A1] The invention relates to a projection system for a display, in particular a heads-up display, comprising a liquid-crystal screen (12) and a back-lighting device (14) for said screen (12). The projection system is characterised in that said back-lighting device (14) comprises at least one light source (16) emitting light towards the screen (12), at least one lens (38a, 38b) suitable for collimating the light from the light source (16) towards the liquid-crystal screen (12), and reflective means (26) arranged on the surface of the lens (38a, 38b) located on the side of the light source (16), arranged such as to allow light to pass through same towards the screen (12) and to reflect towards the screen (12) almost all of the light propagating towards the lens (38a, 38b).
IPC 8 full level
G02B 27/01 (2006.01); G02F 1/1335 (2006.01)
CPC (source: CN EP US)
G02B 27/0101 (2013.01 - EP US); G02F 1/133536 (2013.01 - CN EP US); G02F 1/133603 (2013.01 - CN EP US); G02F 1/133605 (2013.01 - CN EP US); G02F 1/133606 (2013.01 - CN EP US); G02B 2027/0118 (2013.01 - EP US); G02F 1/133607 (2021.01 - US)
Citation (search report)
See references of WO 2016079457A1
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 2016079457 A1 20160526; CN 107257940 A 20171017; CN 107257940 B 20210601; EP 3221738 A1 20170927; FR 3028963 A1 20160527; FR 3028963 B1 20161223; JP 2018502759 A 20180201; US 10295825 B2 20190521; US 2017322415 A1 20171109
DOCDB simple family (application)
FR 2015053164 W 20151120; CN 201580063265 A 20151120; EP 15817942 A 20151120; FR 1402638 A 20141121; JP 2017527266 A 20151120; US 201515526017 A 20151120