Back light system for minimizing non-display area of liquid crystal display device
AssigneesHitachi, Ltd., Hitachi Device Engineering Co., Ltd.
InventorsYoshiomi Yoshii, Masahiko Suzuki, Kenichi Iwamoto, Tustomu Isono, Yuji Yamakawa
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Abstract
A liquid crystal display device having a liquid crystal display element, a backlight for supplying light to the liquid crystal display element and a case for accommodating the liquid crystal display element and the backlight. The backlight has a light guide plate and a lamp unit, wherein the lamp unit providing a fluorescent tube, bushings made of an insulating material, a lamp reflector and a lamp cable and the lamp reflector holds the fluorescent tube through the bushings, and made by bending a stiff metal plates.
Claims23
A liquid crystal display device comprising:
- a liquid crystal display element;
- a backlight for supplying light to the liquid crystal display element and including a light guide plate, a fluorescent tube arranged at a side of the light guide plate, and a lamp reflector arranged along the fluorescent tube;
- a resin mold case accommodating the light guide plate, the fluorescent lamp, and the lamp reflector and having an opening;
- and
- a metal case having a upper frame member and a lower shielding member, and accommodating the backlight accommodated in the resin mold case and the liquid crystal display element arranged over the resin mold case to be opposite to an upper surface of the light guide plate through the opening therein;
- wherein said backlight further includes bushings formed of an insulating material, and a lamp cable extending along said fluorescent tube, said lamp reflector holding said fluorescent tube through said bushings, said lamp cable being connected to one end of said fluorescent tube and interposed between said lamp reflector and said resin mold case, and said lamp reflector being a bent metal plate having a slit in which said lamp cable is inserted.
A liquid crystal display device comprising:
- a liquid crystal display element;
- a backlight including a light guide plate having an upper surface arranged opposite to the liquid crystal display element, a fluorescent tube arranged at a side of the light guide plate, a lamp reflector arranged along the fluorescent tube, and a lamp cable connected to one end of the fluorescent tube and extended along the fluorescent tube;
- a resin case accommodating the light guide plate, the fluorescent lamp, the lamp reflector, and the lamp cable, and including of a resin frame member arranged at an upper surface side of the light guide plate and a resin mold member arranged at a lower surface side of the light guide plate;
- and
- a metal case accommodating the resin case and the liquid crystal display element which is arranged over the resin case, the metal case including a metal frame member and a metal shielding member.
Dependencies are inferred from the claim text.