Title:
DISCHARGE LAMP LIGHTING CIRCUIT AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/099683
Kind Code:
A1
Abstract:
A backlight (1) is constructed by connecting U-shaped discharge lamps (2A,2B)
to the connector (6A) of a discharge lamp lighting circuit (5). A secondary side
output voltage of a transformer (T1A) is applied to an end of the U-shaped discharge
lamp (2A) via a power supplying electrode (4A), while a secondary side output
voltage of a transformer (T1C) is applied to an end of the U-shaped discharge lamp
(2B) via a power supplying electrode (4D). A secondary side output voltage of
a transformer (T1B) is applied to the other ends of the U-shaped discharge lamps
(2A,2B) via the respective ones of power supplying electrodes (4B,4C). The secondary
side output voltages of the transformers (T1A,T1C) have the same polarity, while
the secondary side output voltage of the transformer (T1B) has the opposite polarity
thereto.
Inventors:
HIRAMATSU KIYOSHI (JP)
Application Number:
PCT/JP2006/325157
Publication Date:
September 07, 2007
Filing Date:
December 18, 2006
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
HIRAMATSU KIYOSHI (JP)
HIRAMATSU KIYOSHI (JP)
International Classes:
H05B41/24; G02F1/13357; H01F38/10
Foreign References:
| JP2005203338A | 2005-07-28 | |||
| JP2005032940A | 2005-02-03 | |||
| JP2004335422A | 2004-11-25 | |||
| JP2004273396A | 2004-09-30 | |||
| JPH09161980A | 1997-06-20 |
Other References:
See also references of EP 1991034A4
Attorney, Agent or Firm:
KOMORI, Hisao (Noninbashi Chuo-k, Osaka-shi Osaka 11, JP)
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