Title:
ライトガイド
Document Type and Number:
Japanese Patent JP2013502043
Kind Code:
A
Abstract:
Flexible unitary lightguide and a method of making the same are disclosed. The lightguide includes a structured input side that includes a first pattern having smaller features superimposed on a second pattern having larger features. The lightguide further includes a structured top surface that includes a first region and a different second region. The first region includes a plurality of discrete light extractors for extracting light that propagates within the flexible unitary lightguide by total internal reflection. The second region includes a taper portion for directing light from the structured input side to the first region. The light extractors form a periodic array that has a first period along the length of the flexible unitary lightguide. The first period is such that substantially no visible moire fringes occur when the flexible unitary lightguide is used as a backlight in a pixelated display.
Inventors:
Jeffrey Elle Solomon
Brian A. Kinder
Gary T. Boyd
Brian A. Kinder
Gary T. Boyd
Application Number:
JP2012524826A
Publication Date:
January 17, 2013
Filing Date:
August 11, 2010
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
F21S2/00; G02B6/00; G02F1/13357; F21Y101/02
Domestic Patent References:
| JP2004200093A | 2004-07-15 | |||
| JP2005228718A | 2005-08-25 | |||
| JP2005285586A | 2005-10-13 | |||
| JPH07261029A | 1995-10-13 | |||
| JP2000113709A | 2000-04-21 | |||
| JP2002538577A | 2002-11-12 | |||
| JPH11203923A | 1999-07-30 | |||
| JP2005302458A | 2005-10-27 |
Attorney, Agent or Firm:
Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Ryuichi Nishimura
Hirose Shigeki
Kazuo Maejima
Tetsuro Shimada
Shinji Mitsuhashi
Ryuichi Nishimura
Hirose Shigeki
Kazuo Maejima