Global Patent Index - EP 1088215 A1

EP 1088215 A1 2001-04-04 - EFFICIENT COLOR DISPLAY USING NON-ABSORBING COLOR FILTERS

Title (en)

EFFICIENT COLOR DISPLAY USING NON-ABSORBING COLOR FILTERS

Title (de)

EFFIZIENTE FARBANZEIGE MITTELS NICHTABSORBIERENDER FARBFILTER

Title (fr)

AFFICHAGE EFFICACE DES COULEURS AU MOYEN DE FILTRES COULEUR NON ABSORBANTS

Publication

EP 1088215 A1 (EN)

Application

EP 99916406 A

Priority

  • US 9907509 W
  • US 8683198 P
  • US 13328198 A

Abstract (en)

[origin: WO9961897A1] A display system having a non-absorbing and reflective color filtering array and a reflector to improve light utilization efficiency. One implementation of the color filtering array uses a surface plasmon filter having two symmetric metaldielectric interfaces coupled with each other to produce a transmission optical wave at a surface plasmon resonance wavelength at one interface from a p-polarized input beam on the other interface. Another implementation of the color filtering array uses a metal-film interference filter having two dielectric layers (320) and three metallic films (310a, b).

IPC 1-7 (main, further and additional classification)

G01N 21/55

IPC 8 full level (invention and additional information)

G01N 21/27 (2006.01); G01N 21/55 (2006.01); G01N 21/77 (2006.01); G01N 33/552 (2006.01); G02B 5/04 (2006.01); G02B 5/20 (2006.01); G02B 6/34 (2006.01); G02F 1/01 (2006.01); G02F 1/1335 (2006.01); G02F 1/29 (2006.01); G09G 3/36 (2006.01); H04N 9/31 (2006.01)

CPC (invention and additional information)

G02B 5/201 (2013.01); G02B 5/20 (2013.01); G02F 1/133514 (2013.01); H04N 9/3108 (2013.01); G02F 2001/133521 (2013.01)

Citation (search report)

See references of WO 9961897A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9961897 A1 19991202; EP 1088215 A1 20010404; JP 2002517012 A 20020611

INPADOC legal status


2004-03-10 [18W] WITHDRAWN

- Effective date: 20040105

2001-04-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001123

2001-04-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB