(19)
(11) EP 2 850 486 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
26.02.2020 Bulletin 2020/09

(45) Mention of the grant of the patent:
25.12.2019 Bulletin 2019/52

(21) Application number: 13790141.9

(22) Date of filing: 15.05.2013
(51) International Patent Classification (IPC): 
G02B 27/22(2018.01)
G02F 1/1335(2006.01)
 G09G 3/20(2006.01)
F21V 8/00(2006.01)
(86) International application number:
PCT/US2013/041192
(87) International publication number:
WO 2013/173483 (21.11.2013 Gazette 2013/47)

(54)

DIRECTIONAL BACKLIGHT

DIREKTIONALE RÜCKBELEUCHTUNG

RÉTROÉCLAIRAGE DIRECTIONNEL

(84) Designated Contracting States:
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

(30) Priority: 18.05.2012 US 201261648840 P
18.05.2012 US 201261648942 P
18.05.2012 US 201261649050 P
18.05.2012 US 201261649116 P
18.05.2012 US 201261649054 P
18.05.2012 US 201261649136 P

(43) Date of publication of application:
25.03.2015 Bulletin 2015/13

(73) Proprietor: RealD Spark, LLC
Beverly Hills, CA 90212 (US)

(72) Inventors:
  • WOODGATE, Graham, John
    Beverly Hills, CA 90210 (US)
  • ROBINSON, Michael, G.
    Beverly Hills, CA 90210 (US)
  • HARROLD, Jonathan
    Beverly Hills, CA 90210 (US)
  • SCHUCK, Miller, H.
    Beverly Hills, CA 90210 (US)

(74) Representative: J A Kemp LLP 
14 South Square Gray's Inn
London WC1R 5JJ
London WC1R 5JJ (GB)


(56) References cited: : 
JP-A- 2001 093 321
KR-A- 20110 067 534
US-A1- 2010 220 260
US-A1- 2011 285 927
 JP-A- 2006 004 877
US-A1- 2009 167 651
US-A1- 2011 242 298
US-A1- 2011 292 321
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).