Title:
LED BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/162016
Kind Code:
A1
Abstract:
Disclosed are a direct LED backlight device and a liquid crystal display device, which is provided with the backlight device. In the LED backlight device (BL1), cost is reduced by simplifying an assembly step with the reduced number of components that constitute the backlight device, and even with the reduced number of components, the service life of an LED package can be stabilized by dissipating heat. A wiring pattern (2) for driving an LED chip is provided on a heat dissipating board (4), and an LED package (1) is directly mounted on the heat dissipating board (4) by mounting, on the wiring pattern (2), each sub-mounting board having the LED chip mounted thereon.
Inventors:
KAMADA Kentaro (())
Application Number:
JP2011/059577
Publication Date:
December 29, 2011
Filing Date:
April 19, 2011
Export Citation:
Assignee:
SHARP KABUSHIKI KAISHA (22-22, Nagaike-Cho Abeno-Ku, Osaka-Sh, Osaka 22, 〒5458522, JP)
シャープ株式会社 (〒22 大阪府大阪市阿倍野区長池町２２番２２号 Osaka, 〒5458522, JP)
シャープ株式会社 (〒22 大阪府大阪市阿倍野区長池町２２番２２号 Osaka, 〒5458522, JP)
International Classes:
F21S2/00; F21V29/00; G02F1/13357; F21Y101/02
Attorney, Agent or Firm:
SANO Shizuo (Tenmabashi-Yachiyo Bldg. Bekkan, 2-6 Tenmabashi-Kyomachi, Chuo-Ku, Osaka-Sh, Osaka 32, 〒5400032, JP)
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Claims:
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