Title:
LIGHTING SYSTEM AND DISPLAY DEVICE EQUIPPED WITH IT
Document Type and Number:
Japanese Patent JP2007220369
Kind Code:
A
Abstract:
To solve a problem that optical characteristics of a backlight are degraded by displacement of light-emitting elements and a light guide body.
An engagement sliding groove is provided for each light-emitting element and a light guide body. With that, positional accuracy of the light-emitting elements is greatly improved to have variations of individual differences in optical characteristics reduced. Moreover, as the light-emitting elements are so structured to be pressed onto incident faces of the light guide body, gaps are eliminated between the light-emitting elements and the light guide body to maximize an emission efficiency.
COPYRIGHT: (C)2007,JPO&INPIT
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Inventors:
HASHIZUME ISAMU
Application Number:
JP2006037047A
Publication Date:
August 30, 2007
Filing Date:
February 14, 2006
Export Citation:
Assignee:
SEIKO INSTR INC
International Classes:
F21V8/00; G02B6/00; G02F1/13357; F21Y101/02
Domestic Patent References:
| JPH10334718A | 1998-12-18 | |||
| JPH07114022A | 1995-05-02 | |||
| JPH09298008A | 1997-11-18 | |||
| JPH07287228A | 1995-10-31 | |||
| JP2005347109A | 2005-12-15 |
Foreign References:
| WO2005012787A1 | 2005-02-10 |
Attorney, Agent or Firm:
Yoshiharu Matsushita