BACK LIGHT DEVICE

PROBLEM TO BE SOLVED: To prevent a back light device for use in a liquid crystal panel from deterioration in the the performance caused by the heat generated from a fluorescent tube. SOLUTION: A back light device 1 is composed of a fluorescent tube 2, reflecting plate 3 to reflect the light from the...

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Bibliographic Details
Main Authors OMORI TAKAYOSHI, YONEYA MASARU, YAMAMOTO KOICHI, SASAKI KENICHI, SUZUKI TERUHIRO
Format Patent
LanguageEnglish
Published 24.04.1998
Edition6
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-PORTABLE LIGHTING DEVICES
SYSTEMS THEREOF
VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To prevent a back light device for use in a liquid crystal panel from deterioration in the the performance caused by the heat generated from a fluorescent tube. SOLUTION: A back light device 1 is composed of a fluorescent tube 2, reflecting plate 3 to reflect the light from the tube 2, a diffusion plate 4 to diffuse the light from the tube 2 and plate 3, a drive circuit board 5 for the fluorescent tube 2, and a chassis 6 on which the mentioned members 2 thru 5 are mounted. The reflecting plate 3 is formed from aluminum which is excellent in the heat transmitting property. By the plate 3, the inside of the chassis 6 is partitioned into a first chamber and a second chamber. The first chamber is embodied in a tight closed structure, and inside it, the fluorescent tube 2 is installed. The second chamber is furnished with vents 9..., and the external air introduced from these vents is allowed to run against one side surface of the plate 3 so as to be cooled.
Bibliography:Application Number: JP19960255206