Title:
BACK LIGHT ILLUMINATING UNIT
Document Type and Number:
WIPO Patent Application WO/2003/065115
Kind Code:
A1
Abstract:
A frame disposed on the rear side of a liquid crystal unit (2) has in the front surface sheet thereof an opening almost the size of the liquid crystal unit (2), and is constituted so that a translucent optical diffusion sheet is tensely provided on the opening in a thin-box-form. An inverter printed board (14) provided with an inverter circuit (16) and a cold cathode (22) are integrally coupled to this frame directly or indirectly via a retainer to unitize the frame, the inverter circuit (16) and the cold cathode (22). The electrode lead wire of the cold cathode (22) is connected to the high-voltage output terminal of the inverter circuit (16). A connector (20) for connection to an external wiring is fixed to the inverter printed board (14) or the frame to supply electricity to the inverter circuit (16) via the connector (20) and apply high voltage to the electrode of the cold cathode (22) from the inverter circuit (16). Accordingly, a liquid crystal display-use back light illuminating device can be reduced in size and thickness to enhance safety and reliability at assembling.
Inventors:
KOHNO KAZUO (JP)
Application Number:
PCT/JP2003/000700
Publication Date:
August 07, 2003
Filing Date:
January 27, 2003
Export Citation:
Assignee:
KOHNO KAZUO (JP)
International Classes:
F21V8/00; G02F1/13357; (IPC1-7): G02F1/3357; F21V8/00; F21V23/02
Foreign References:
| JPH0829749A | 1996-02-02 | |||
| JPH07262815A | 1995-10-13 | |||
| JPH06176884A | 1994-06-24 |
Attorney, Agent or Firm:
Nishijima, Ayao (19-15 Jingumae 6-chom, Shibuya-ku Tokyo, JP)
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