Title:
分割輝度調節機能を有する側面型バックライトユニット
Document Type and Number:
Japanese Patent JP5506851
Kind Code:
B2
Abstract:
Disclosed is an edge type backlight unit having a local dimming function realized by adjusting the distance between a light guide plate and a plurality of optical systems disposed under the light guide plate. The edge type backlight unit includes a light guide plate guiding light emitted from a light source, and a luminance control unit including a plurality of optical systems reflecting light guided by the light guide plate and emitting the light to a liquid crystal panel, and controlling luminance by controlling the reflectance of each of the plurality of optical systems according to an input image signal.
Inventors:
Park, Jun Kyu
Hum, Hunju
Hum, Hunju
Application Number:
JP2012107221A
Publication Date:
May 28, 2014
Filing Date:
May 09, 2012
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
F21S2/00; F21V14/04; G02F1/133; G02F1/13357; F21Y101/02
Domestic Patent References:
| JP11072721A | ||||
| JP2004233555A | ||||
| JP2006227645A | ||||
| JP2004152515A | ||||
| JP2002049037A | ||||
| JP2005283819A | ||||
| JP11160735A |
Foreign References:
| WO2004114004A1 |
Attorney, Agent or Firm:
Kyosei International Patent Office