Light emitting device package and back light unit for liquid crystral display using the same
First Claim
Patent Images
1. An LED package comprising:
- a metal substrate;
an insulation sheet formed at an upper surface of the metal substrate;
a plurality of electrode lines formed on the insulation sheet;
LEDs electrically bonded to an upper surface of the plurality of electrode lines and arrayed in rows and lines;
a plurality of striped protruders fixed at one surface thereof to a lower surface of the metal substrate, each spaced a predetermined distance apart;
a guide member fixed to the other surface of the protruders; and
a fan case encased therein with a fan for sucking air through a suction inlet and disposed at a lateral surface of the metal substrate and the guide member for circulating the sucked air through spaces of the protruders.
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Accused Products
Abstract
A light emitting device package and a back light unit for liquid crystal display using the same wherein a fan is used to forcibly cool an LED package and a back light unit for LCD to increase the heat radiation efficiency and to prevent the degradation of the device.
161 Citations
17 Claims
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1. An LED package comprising:
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a metal substrate;
an insulation sheet formed at an upper surface of the metal substrate;
a plurality of electrode lines formed on the insulation sheet;
LEDs electrically bonded to an upper surface of the plurality of electrode lines and arrayed in rows and lines;
a plurality of striped protruders fixed at one surface thereof to a lower surface of the metal substrate, each spaced a predetermined distance apart;
a guide member fixed to the other surface of the protruders; and
a fan case encased therein with a fan for sucking air through a suction inlet and disposed at a lateral surface of the metal substrate and the guide member for circulating the sucked air through spaces of the protruders. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An LED package comprising:
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a body arrayed thereon with LEDs and formed thereunder with a plurality of striped protruders, each spaced a predetermined distance apart; and
a suction fan infusing air through spaces of the plurality of protruders for cooling a lower section of the body and the plurality of protruders by sucking the air. - View Dependent Claims (8, 9, 10, 11)
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12. A back light unit for liquid crystal display (LCD) using LEDs comprising:
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a dissipation sheet disposed at a rear surface of LCD having a front surface and a rear surface;
a substrate disposed at a rear surface of the dissipation sheet and arrayed at a front thereof with a plurality of LEDs; and
a cooling apparatus cooling the substrate by discharging the air sucked by a fan to a rear surface of the substrate. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification