EP 3405831 A1 20181128 - IMAGE DISPLAY SCREEN
Title (en)
IMAGE DISPLAY SCREEN
Title (de)
BILDANZEIGESCHIRM
Title (fr)
ÉCRAN D'AFFICHAGE D'IMAGE
Publication
Application
Priority
- GB 201601001 A 20160119
- GB 2017050085 W 20170113
Abstract (en)
[origin: GB2546505A] Image display screen comprising: an image reflecting portion comprising an optically anisotropic layer and configured such that light incident thereon is reflected principally by the optically anisotropic layer. Also disclosed: image reflecting portion comprises a lenticular reflector and a layer of paint. Lenticular array may comprise prisms, cylindrical, hemicylindrical or elliptically cylindrical elongate, mutually parallel lenses with horizontally aligned longitudinal axes. Paint may be pigmented black to absorb light but may contain dispersed reflective particles eg. aluminium. Also disclosed: image reflector may rotate about an axis displaced from its centre. This may generate a volumetric display. Also disclosed: image may be projected on to the screen and may be rotated at the same speed as the screen. Image rotator may be a Dove prism and may be rotated at half the speed of the screen. Anisotropic material may be a holographic diffuser or reflector layer or a lenslet array. Light transmitted through optically anisotropic layer may be attenuated. Image reflector may comprise contrast layer. Longitudinal lens axis may be perpendicular to screen rotation axis. Video may be projected.
IPC 8 full level
G02B 27/22 (2018.01); G02B 30/60 (2020.01); G03B 21/602 (2014.01)
CPC (source: EP GB)
G02B 30/27 (2020.01 - GB); G02B 30/35 (2020.01 - EP); G02B 30/54 (2020.01 - GB); G03B 21/602 (2013.01 - EP); G03B 35/16 (2013.01 - EP); H04N 13/305 (2018.04 - GB); H04N 13/393 (2018.04 - GB); G02B 30/60 (2020.01 - GB)
Citation (search report)
See references of WO 2017125718A1
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)
GB 201601001 D0 20160302; GB 2546505 A 20170726; GB 2546505 B 20200219; EP 3405831 A1 20181128; WO 2017125718 A1 20170727
DOCDB simple family (application)
GB 201601001 A 20160119; EP 17704523 A 20170113; GB 2017050085 W 20170113