Title:
偏光光放出導波器、照明装置及び斯様な照明装置を有する表示装置
Document Type and Number:
Japanese Patent JP2005521197
Kind Code:
A
Abstract:
A side-lit illumination arrangement comprises a polarized-light-emitting waveguide comprising a polarization-selective beam-splitting interface formed at an interface of a waveguiding layer and a polarization-selection layer. In order to avoid alignment problems occurring during the manufacture of the waveguide which impair the proper functioning of the polarization-selective beam-splitting interface, the polarization-selective beam-splitting interface is planar. Waveguided light polarized and transmitted by the polarization-selective beam-splitting interface into the polarization-selection layer is coupled out by a relief-structured surface via an exit surface. Display devices having such waveguides, in particular if used in a front light, have a high brightness and efficiency.
Inventors:
Fuku Hubertina PM
Cornelissen Hugo Jay
Cornelissen Hugo Jay
Application Number:
JP2003576864A
Publication Date:
July 14, 2005
Filing Date:
March 03, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G02B5/30; F21V8/00; G02F1/13357; F21Y103/00; G02B6/00; (IPC1-7): F21V8/00; G02B5/30; G02F1/13357
Attorney, Agent or Firm:
Susumu Tsugaru
Akihiko Miyazaki
Fueda Shusen
Akihiko Miyazaki
Fueda Shusen