Title:
PLANAR LIGHT SOURCE UNIT AND LIQUID CRYSTAL DISPLAY DEVICE EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2013/105407
Kind Code:
A1
Abstract:
In the present invention, a backlight (3) serving as a planar light source unit is equipped with: multiple LEDs (12); and a bottom plate (11a) having a mounting surface (11a1). The multiple LEDs (12) are two-dimensionally arranged on the mounting surface (11a1) within a rectangular area (RA) that is smaller than the bottom plate (11a). In addition, the arrangement density of the LEDs (12) in the rectangular area (RA) is lower at the center part (Rc) than at the peripheral part (Rp). The rectangular area (RA) has a corner area, where at least one LED (12) is provided, at each of the four corners thereof. The LEDs (12) positioned in the respective corner areas are installed such that the central axes of the LEDs lean toward the periphery side of the rectangular area (RA) with respect to the direction perpendicular to the mounting surface (11a1).
Inventors:
SAKAI KOHJI
Application Number:
PCT/JP2012/082987
Publication Date:
July 18, 2013
Filing Date:
December 20, 2012
Export Citation:
Assignee:
SHARP KK (JP)
SAKAI KOHJI
SAKAI KOHJI
International Classes:
F21S2/00; G02F1/13357; F21Y101/02
Domestic Patent References:
| WO2011004637A1 | 2011-01-13 |
Foreign References:
| JP2010049993A | 2010-03-04 | |||
| JP2009295434A | 2009-12-17 | |||
| JP2008071755A | 2008-03-27 |
Attorney, Agent or Firm:
SANO SHIZUO (JP)
Shizuo Sano (JP)
Shizuo Sano (JP)
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