Display cold spot temperature regulator
AssigneeHoneywell International Inc.
InventorsBrian David Cull, Dennis Michael Davey, Alan Stuart Feldman
Life of this patent
Estimating the term…
Abstract
An apparatus and method is disclosed for regulating the cold spot temperature of a light emitting enclosure. A cold spot regulation system defines and controls the temperature of the cold spot. The cold spot regulation system includes an interface housing secured to the light emitting enclosure and two ducts extending from the interface housing. The cold spot regulation system uses a coolant fluid to lower the operating temperature of the light emitting enclosure. The coolant fluid is diverted into one of the ducts. The coolant fluid is passed by the cold spot of the light emitting enclosure and released out the other duct.
Claims21
A display backlight, comprising:
- (a) a light emitting enclosure having a cold spot;
- (b) a source of coolant fluid;
- (c) a backplate positioned between said light emitting enclosure and said source of coolant fluid;
- (d) a heating mechanism in communication with and to provide heat to said light emitting enclosure, wherein said heating mechanism comprises a resistive heater;
- and
- (e) a duct disposed through said backplate and having a first end connected to said source of coolant fluid and a second end exposed to said cold spot.
A display backlight, comprising:
- (a) a light emitting enclosure having a cold spot;
- (b) a source of coolant fluid;
- (c) a backplate positioned between said light emitting enclosure and said source of coolant fluid:
- (d) a heating mechanism in communication with and to provide heat to said light emitting enclosure;
- (e) a duct disposed through said backplate and having a first end connected to said source of coolant fluid and a second end exposed to said cold spot;
- and
- (f) a temperature sensor coupled to said cold spot.
A display backlight system, comprising;
- (a) a light emitting enclosure having a cold spot;
- (b) a source of coolant fluid;
- (c) a backplate disposed between said light emitting enclosure and said source of coolant fluid;
- (d) a heating mechanism in communication with and to provide heat to said light emitting enclosure;
- (e) a cold spot regulation system, including an intake duct having a first end connected to said source of coolant fluid and a second end exposed to said cold spot;
- and
- (f) a power supply coupled to said heating mechanism for delivering operational power to said heating mechanism.
A display backlight system, comprising;
- (a) a light emitting enclosure having a cold spot;
- (b) a source of coolant fluid;
- (c) a backplate disposed between said light emitting enclosure and said source of coolant fluid;
- (d) a beating mechanism in communication with and to provide heat to said light emitting enclosure;
- (e) a cold spot regulation system, including an intake duct having a first end connected to said source of coolant fluid and a second end exposed to said cold spot;
- and
- (f) a temperature sensor coupled to said cold spot regulation system.
A display backlight system, comprising:
- (a) a light emitting enclosure having a cold spot;
- (a) a source of coolant fluid;
- (c) a backplate disposed between said light emitting enclosure and said source of coolant fluid;
- (d) a heating mechanism in communication with and to provide heat to said light emitting enclosure;
- (e) a cold spot regulation system, including an intake duct having a first end connected to said source of coolant fluid and a second end exposed to said cold spot. Wherein said intake duct comprises a venturi tube.
Dependencies are inferred from the claim text.