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US 2010/0074283 A1Published application
Light source device, image display apparatus, and method of driving light emitting element
AssigneeSeiko Epson Corporation
InventorTomio IKEGAMI
Life of this patent
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Abstract
A light source device includes: a light emitting element; a pulse drive section adapted to supply the light emitting element with a pulse current in order for controlling an average emission light intensity from the light emitting element; and a light emitting element shunt section disposed in parallel to the light emitting element and adapted to shunt the light emitting element.
Claims18
A light source device comprising:
- a light emitting element;
- a pulse drive section adapted to supply the light emitting element with a pulse current in order for controlling an average emission light intensity from the light emitting element;
- and
- a light emitting element shunt section disposed in parallel to the light emitting element and adapted to shunt the light emitting element.
1 more element
A driving method for a light emitting element, comprising:
- supplying the light emitting element with a pulse current in order for controlling an average emission light intensity from the light emitting element;
- and
- shunting the light emitting element in a transitional period of the pulse current.
A light source device using a light emitting element, comprising:
- a pulse drive section adapted to supply the light emitting element with a pulse current in order for controlling an average emission light intensity from the light emitting element;
- and
- a rising acceleration section adapted to make rising of the pulse current faster by shunting the light emitting element.
Dependencies are inferred from the claim text.