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US 5,726,722 AGranted
Light source for display device
AssigneeCanon Kabushiki Kaisha
InventorsMakoto Uehara, Shigeki Yabu, Yoshihiro Onitsuka
Life of this patent
Estimating the term…
Abstract
A rear right source device having a lamp chamber in which straight-tube light source lamps are arranged in the vertical direction. The light source device includes a ventilating hole formed on the upper lateral face of the lamp chamber for releasing the air of the lamp chamber heated by the light source lamps to the extrior, and a seal member mounted on the lower lateral face of the lamp chamber and substantially closing the gap between the lamp and an aperture for inserting the lamp.
Claims52
A light source device comprising:
- a lamp chamber having a rear wall, a pair of side walls, an upper wall and a lower wall;
- a light source arranged in said chamber;
- a ventilating hole formed in said upper wall;
- a light transmitting cover provided at a front of said lamp chamber for closing said chamber;
- a through hole formed in at least one of said upper wall and said lower wall so that said light source penetrates into the through hole;
- and
- a sealing member disposed proximate to the through hole for reducing a gap between the through hole and said light source, wherein said sealing member is a thin flexible plate having a notch.
4 more elements
A light source device comprising:
- a lamp chamber having a rear wall, a pair of side walls, an upper wall and a lower wall;
- a light source arranged in said chamber;
- a light transmitting cover provided at a front of said lamp chamber for closing said chamber;
- and
- a plurality of ventilating holes formed at said upper wall, and through holes formed in said upper and lower walls so that said light source penetrates into the through hole.
2 more elements
A light source device comprising:
- a lamp chamber having a rear wall, a pair of side walls, an upper wall and a lower wall;
- a light source arranged in said chamber;
- a ventilating hole formed in said upper wall;
- a light transmitting cover provided at a front of said lamp chamber for closing said chamber;
- a through hole formed in at least one of said side walls so that said light source penetrates into the through hole;
- and
- a sealing member disposed proximate to the through hole for reducing a gap between the through hole and said light source, wherein said sealing member is a thin flexible plate having a notch.
4 more elements
A rear light source device comprising:
- a lamp chamber having a rear wall, a pair of side walls, an upper wall and a lower wall;
- a light source arranged in said chamber;
- a ventilating hole formed in said upper wall;
- a light transmitting cover provided at a front of said lamp chamber for closing said chamber, with said light transmitting cover being a diffusion plate and including a lighting curtain;
- and
- a through hole formed in at least one of said side wall, said upper wall and said lower wall, so that said light source penetrates into the through hole.
3 more elements
A device according to 23, wherein said illuminated portion of said light source is positioned in an interior of said lamp chamber and said non-illuminated portion is positioned outside of said lamp chamber.
A liquid crystal apparatus comprising:
- a light source device including a lamp chamber having a rear wall, a pair of side walls, an upper wall and a lower wall;
- a light source arranged in said chamber;
- a ventilating hole formed in said upper wall;
- a light transmitting cover provided at a front of said lamp chamber for closing said chamber;
- a through hole formed in at least one of said upper wall and said lower wall so that said light source penetrates into the through hole;
- a liquid crystal panel arranged at a front of said light transmitting cover;
- and
- a sealing member disposed proximate to the through hole for reducing a gap between the through hole and said light source, wherein said sealing member is a thin flexible plate having a notch.
5 more elements
A liquid crystal apparatus comprising:
- a light source device including a lamp chamber having a rear wall, a pair of side walls, an upper wall and a lower wall;
- a light source arranged in said chamber;
- a light transmitting cover provided at a front of said lamp chamber for closing said chamber;
- a liquid crystal panel arranged at a front of said light transmitting cover;
- and
- a plurality of ventilating holes formed at said upper wall, and through holes formed in said upper and lower walls so that said light source penetrates into the through holes.
3 more elements
A liquid crystal apparatus comprising:
- a light source device including a lamp chamber having a rear wall, a pair of side walls, an upper wall and a lower wall;
- a light source arranged in said chamber;
- a ventilating hole formed in said upper wall;
- a light transmitting cover provided at a front of said lamp chamber for closing said chamber;
- a through hole formed in at least one of said side walls so that said light source penetrates into the through hole;
- a liquid crystal panel arranged at a front of said light transmitting cover;
- and
- a sealing member disposed proximate to the through hole for reducing a gap between the through hole and said light source, wherein said sealing member is a thin flexible plate having a notch.
5 more elements
A liquid crystal apparatus comprising:
- a rear light source device including a lamp chamber having a rear wall, a pair of side walls, an upper wall and a lower wall;
- a light source arranged in said chamber;
- a ventilating hole formed in said upper wall;
- a light transmitting cover provided at a front of said lamp chamber for closing said chamber, said light transmitting cover being a diffusion plate and including a lighting curtain;
- a through hole formed in at least one of said side wall, said upper wall and said lower wall, so that said light source penetrates into the through hole;
- and
- a liquid crystal panel arranged at a front of said light transmitting cover.
4 more elements
Dependencies are inferred from the claim text.