Title:
照明装置および液晶表示装置
Document Type and Number:
Japanese Patent JP5043198
Kind Code:
B2
Abstract:
A backlight (2) of the present invention is a tandem backlight. This backlight (2) includes: a light source (5); a plurality of light emitting units (11) each including a light guide body (7) that diffuses light from the light source and causes the diffused light to exit from a light emitting surface; and a substrate (4) on which the light source (5) is fixedly connected and which is connected to the light guide body (7). On a surface of the light guide body (7) which surface faces the substrate (4), a protrusion (12) for alignment with the substrate is formed. Meanwhile, in the substrate (4), a through hole (13) into which the protrusion (12) is engaged is formed. An engaging section B (alignment section) of the protrusion (12) and the through hole (13) is disposed so as to be closer to a light emitting section (7b) than the connecting area A of the light guide body (7) and the substrate (4). According to the present invention, in a tandem illumination device, highly precise alignment of the light source and the light guide body can be performed. As a result, luminance uniformity can be improved. In addition, a defect in mounting of the light guide body can be easily distinguished.
Inventors:
Yuichi Mohri
Application Number:
JP2010531799A
Publication Date:
October 10, 2012
Filing Date:
September 07, 2009
Export Citation:
Assignee:
Sharp Corporation
International Classes:
F21S2/00; G02B6/00; G02F1/1333; G02F1/13357; F21Y101/02
Domestic Patent References:
| JP2004184493A | 2004-07-02 | |||
| JPH11288611A | 1999-10-19 |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office