Patent ID: 6906758

Claim:
A cooling structure for a projection television, said cooling structure comprising: an optical engine assembly including a lamp system, a synthesis system, and a lens system; a screen, a housing, and a back cover, said three elements being assembled, thereby forming an inner space; a heat-blocking unit including heat blocking ribs and heat blocking plates, said heat-blocking ribs and said heat-blocking plates contacting the perimeter of the lamp system, thereby separating the lamp system from the inner space; a sealing frame connected to the heat blocking unit, thereby forming a diaphragm for sealing the inner space in combination with the heat blocking unit; and a radiating unit including radiating holes for exhausting the heat of the inner space to the outside and a heat sink for covering the radiating holes and for contacting the air of inner space, said radiating holes being formed on the housing and said heat sink being thermal conductive.