Title:
BACK LIGHT CONTROLLER, BACK LIGHT CONTROL METHOD, AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2006251533
Kind Code:
A
Abstract:
To provide a back light controller capable of suppressing noise of a source voltage and voltage variation due to a turn-on or a turn-off of a light source while providing optional luminance level.
The back light controller 3 adjusts the luminance of a back light 2 by controlling the number of light emitting elements illuminating for each clock in one cycle and the frequency of illumination of each light emitting element per cycle. The back light 2 illuminates a liquid crystal panel 1.
Inventors:
MIYAIRI SEN
TSUCHIDA TOSHIMASA
TSUCHIDA TOSHIMASA
Application Number:
JP2005069730A
Publication Date:
September 21, 2006
Filing Date:
March 11, 2005
Export Citation:
Assignee:
SONY CORP
International Classes:
G02F1/133
Domestic Patent References:
| JPH09274472A | 1997-10-21 |
Attorney, Agent or Firm:
Akira Koike
Eiichi Tamura
Seiji Iga
Eiichi Tamura
Seiji Iga
Previous Patent: SYSTEM AND METHOD FOR BACK LIGHT PRODUCTION MANAGEMENT
Next Patent: DISPLAY APPARATUS
Next Patent: DISPLAY APPARATUS