Title:
バックライトアセンブリー及びこれを備えた表示装置
Document Type and Number:
Japanese Patent JP4841862
Kind Code:
B2
Abstract:
A backlight assembly device includes lamps, an inverter, a sensing unit, a normal lighting determiner and an inverter controller. The inverter applies a control signal to the lamps to control operation of the lamps. The sensing unit outputs sensing voltages in response to currents flowing in the lamps. The normal lighting determiner compares the sensing voltages to a reference voltage for determining an operating state of the lamps to output a determination signal and varies the reference voltage in response to a change in the operating state of the lamps. The inverter controller outputs the control signal in response to the determination signal.
Inventors:
Zhang dragon
Money
Money
Application Number:
JP2005138845A
Publication Date:
December 21, 2011
Filing Date:
May 11, 2005
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
G02F1/13357; H05B41/24; G02F1/133; G02F1/1335; H05B37/00; H05B41/282; H05B41/285; H05B41/36
Domestic Patent References:
| JP9266091A | ||||
| JP2004079508A | ||||
| JP9251899A | ||||
| JP6267674A | ||||
| JP2004031338A | ||||
| JP9215342A | ||||
| JP63311179A |
Foreign References:
| WO2004019312A1 |
Attorney, Agent or Firm:
Yamashita
Yukio Ono
Tomoko Inazumi
Yukio Ono
Tomoko Inazumi