EP 3440502 A1 20190213 - SCREEN FOR A FREE VIEWING MODE AND A RESTRICTED VIEWING MODE
Title (en)
SCREEN FOR A FREE VIEWING MODE AND A RESTRICTED VIEWING MODE
Title (de)
BILDSCHIRM FUER EINEN FREIEN UND EINEN EINGESCHRAENKTEN SICHTMODUS
Title (fr)
ÉCRAN POUR MODE VISUALISATION DÉGAGÉE ET MODE VISUALISATION RESTREINTE
Publication
Application
Priority
- DE 102017006285 A 20170630
- EP 2017084123 W 20171221
Abstract (en)
[origin: WO2019001755A1] The invention relates to a screen (1), which can be operated in at least two operating modes, (B1) for a free viewing mode and (B2) for a restricted viewing mode, comprising a flat extensive backlighting (2) which radiates light in a restricted angular range, a transmissive imager (5) arranged in front of the backlighting (2) in the viewing direction, a plate-shaped light guide (3) positioned between the imager (5) and the backlighting (2), consisting of a transparent, thermoplastic or thermoelastic synthetic material, and having decoupling elements (6) on at least one of the large surfaces and/or within the volume of said light guide, wherein lamps (4) are arranged laterally on narrow sides of the light guide (3), the light guide (3) is up to at least 70% transparent for the light being emitted from the backlighting (2), the decoupling elements (6) are selected in terms of the number thereof per surface and their spread such that the light guide (3) has an average haze value of less than 7% on at least 80% of the surface thereof, whereby the light radiated in a restricted angular range from the backlighting (2) at least in the operating mode B2 is only minimally scattered when passing through the light guide (3), wherein the decoupling elements (6) are also distributed on at least one of the large surfaces and/or within the volume of the light guide (3) in such a way that up to at least 80% of the decoupling of the light coming from the lamps (4) out of the light-guide is carried out on one of the large surfaces of the light-guide (3) in the direction of the imager (5), and wherein the backlighting (2) is switched on and the lamps (4) are switched off in the operating mode (B2), and wherein at least the lamps (4) are switched on in the operating mode (B1).
IPC 8 full level
G02F 1/13 (2006.01); G02F 1/13357 (2006.01)
CPC (source: EP IL KR US)
B60K 35/00 (2013.01 - IL KR US); B60K 35/22 (2024.01 - IL KR); B60K 35/28 (2024.01 - IL KR); B60K 35/29 (2024.01 - IL KR); G02B 6/0035 (2013.01 - EP IL); G02B 6/0036 (2013.01 - IL KR US); G02B 6/0065 (2013.01 - IL KR US); G02B 6/0068 (2013.01 - EP IL); G02B 6/0076 (2013.01 - IL); G02F 1/1323 (2013.01 - EP IL KR); G02F 1/133615 (2013.01 - EP IL KR); G02F 1/133616 (2021.01 - IL KR); G02F 1/133626 (2021.01 - IL); B60K 35/22 (2024.01 - US); B60K 35/28 (2024.01 - US); B60K 35/29 (2024.01 - US); B60K 2360/1526 (2024.01 - IL US); B60K 2360/164 (2024.01 - IL US); B60K 2360/195 (2024.01 - IL US); B60K 2360/33 (2024.01 - IL KR US); G02B 6/0036 (2013.01 - EP); G02B 6/0076 (2013.01 - US); G02F 1/133616 (2021.01 - EP); G02F 1/133626 (2021.01 - EP)
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 2019001755 A1 20190103; AU 2018292146 A1 20200130; AU 2018292146 B2 20211014; BR 112019025000 A2 20200616; CN 110692011 A 20200114; DE 102017006285 A1 20190103; EP 3440502 A1 20190213; EP 3440503 A1 20190213; EP 3545359 A1 20191002; EP 3545359 B1 20201223; IL 270947 A 20200130; IL 270947 B 20210228; JP 2020525972 A 20200827; JP 6839397 B2 20210310; KR 102265117 B1 20210615; KR 20200022438 A 20200303; TW 202001378 A 20200101; TW I705284 B 20200921; US 10712488 B2 20200714; US 2019353838 A1 20191121; WO 2019001756 A1 20190103; WO 2019002496 A1 20190103
DOCDB simple family (application)
EP 2017084123 W 20171221; AU 2018292146 A 20180628; BR 112019025000 A 20180628; CN 201880036141 A 20180628; DE 102017006285 A 20170630; EP 17822295 A 20171221; EP 17822296 A 20171221; EP 18734817 A 20180628; EP 2017084126 W 20171221; EP 2018067473 W 20180628; IL 27094719 A 20191126; JP 2019565951 A 20180628; KR 20207001736 A 20180628; TW 107136786 A 20181018; US 201816476846 A 20180628