Title:
LED BACKLIGHT AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/135885
Kind Code:
A1
Abstract:
Disclosed are a direct-lighting LED backlight, and a liquid crystal display device, which is provided with the backlight. In the LED backlight, heat generated by LEDs is easily dissipated, the number of the LEDs disposed is reduced, the temperature of the LEDs does not become too high even power is concentrated on the small number of LEDs, and reliability is improved by stabilizing light emission luminance and service life. The LED backlight (BL1) is provided with: an LED substrate (2), on which a plurality of the LEDs (1) are arranged in a row in the axis line direction; and a base (3), which has a substrate attaching surface (3a) for attaching the LED substrate. The base (3) is attached to a frame (10) such that the axis line direction is in the perpendicular direction, said frame having a liquid crystal panel (6) and the LED backlight integrally assembled thereto, and a flow channel wherein air flows is provided in the perpendicular direction on the rear side of the substrate attaching surface (3a) of the base (3).
Inventors:
INOUE NAOTO
TOMIYOSHI AKIRA
YAMAMOTO TOMOHIKO
TOMIYOSHI AKIRA
YAMAMOTO TOMOHIKO
Application Number:
PCT/JP2011/052351
Publication Date:
November 03, 2011
Filing Date:
February 04, 2011
Export Citation:
Assignee:
SHARP KK (JP)
INOUE NAOTO
TOMIYOSHI AKIRA
YAMAMOTO TOMOHIKO
INOUE NAOTO
TOMIYOSHI AKIRA
YAMAMOTO TOMOHIKO
International Classes:
F21S2/00; F21V23/00; F21V29/00; G02F1/13357; F21Y101/02
Domestic Patent References:
| WO2008153058A1 | 2008-12-18 |
Foreign References:
| JP2007316571A | 2007-12-06 | |||
| JP2006302581A | 2006-11-02 | |||
| JP2008112719A | 2008-05-15 | |||
| JP2008270144A | 2008-11-06 | |||
| JP2007299682A | 2007-11-15 |
Attorney, Agent or Firm:
SANO SHIZUO (JP)
Shizuo Sano (JP)
Shizuo Sano (JP)
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Claims: