Title:
BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY EQUIPPED WITH THE SAME
Document Type and Number:
Japanese Patent JP2010040192
Kind Code:
A
Abstract:
To provide a backlight unit realizing both a thin shape and energy saving, and excellent in uniformity of luminance in a partial driving system such as local dimming.
The backlight unit, arranged at a rear face of a display panel for irradiating light on the panel, is provided with a plurality of light guide plates 20 arrayed in parallel each equipped with a light-emission face 20a opposed to the display panel and an incident face 20c positioned opposite to the emission face 20a, and at least one point light source 22 giving light to the light guide plates. The emission face of each light guide plate is provided with a plurality of light-transmitting areas transmitting light and a plurality of light-reflecting areas reflecting light.
Inventors:
ONO OSAMU
MATSUDA SHUZO
TAKAHASHI TAKESHI
MATSUDA SHUZO
TAKAHASHI TAKESHI
Application Number:
JP2008198275A
Publication Date:
February 18, 2010
Filing Date:
July 31, 2008
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F21S2/00; F21V5/00; F21V5/04; F21V7/00; G02F1/13357; F21Y101/02
Attorney, Agent or Firm:
Takehiko Suzue
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Tetsuya Kazama
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Tetsuya Kazama
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen