Title:
SURFACE LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2018137198
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technique capable of stably holding a board on which a light source is mounted, and a light distribution control element.SOLUTION: A surface light source device 91 comprises: a plurality of LEDs 20 that emit light; a board 21 on which the plurality of LEDs 20 are mounted; a light distribution control element 23 arranged on the board 21 to distribute the light emitted from the plurality of LEDs 20; a reflecting sheet 22 that reflects a portion of the light distributed by the light distribution control element 23, to the side of a display surface of the surface light source device 91; a housing 96 that houses the plurality of LEDs 20, the board 21, the light distribution control element 23, and the reflecting sheet 22; and a holding member that holds the light distribution control element 23 and the board 21 while being in contact with a surface on the side opposite to a surface of the light distribution control element 23 in contact with the board 21.SELECTED DRAWING: Figure 7
Inventors:
MURAI TAKESHI
TAKESHIMA MASAAKI
NISHIKAWA KENGO
MIURA NOBUHIRO
TAKESHIMA MASAAKI
NISHIKAWA KENGO
MIURA NOBUHIRO
Application Number:
JP2017032888A
Publication Date:
August 30, 2018
Filing Date:
February 24, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F21S2/00; F21V17/00; G02F1/1333; G02F1/13357
Domestic Patent References:
| JP2015225717A | 2015-12-14 | |||
| JP2013164943A | 2013-08-22 | |||
| JP3164827U | 2010-12-16 |
Foreign References:
| WO2012011304A1 | 2012-01-26 | |||
| WO2013099718A1 | 2013-07-04 | |||
| WO2013008400A1 | 2013-01-17 |
Attorney, Agent or Firm:
Yoshitake Hidetoshi
Takahiro Arita
Takahiro Arita