Display device

摘要

Provided is a projection type display device that has dust-proof and coolable optical components. According to an aspect of the present invention, the display device includes a case, a dust-proof structure that has a plurality of walls surrounding a plurality of optical components to prevent dust, and which is located in the case, and suction ports (7b and 7b′) formed in the case and configured to suck cooling air along one wall of the dust-proof structure to cool the optical components. The suction ports are separated into first suction port (7b) and second suction port (7b′) with a position of one wall set as a reference. First suction port (7b) is located to blow the cooling air to the dust-proof structure, while second suction port (7b′) is located to prevent direct blowing of the cooling air to the dust-proof structure. An area of first suction port (7b) is smaller than that of second suction port (7b′).

主权项

1. A display device, comprising:
a case; a dust-proof structure having a plurality of walls surrounding a plurality of optical components to prevent dust, and which is located in the case; and suction areas configured to suck cooling air in a direction along one wall of the dust-proof structure from one surface of the case to cool the optical components, wherein, in a plan view, with respect to a line that extends along the one wall of the dust-proof structure, the suction areas are separated into:
a first suction port on a side of the line where the dust-proof structure is located; anda second suction port on a side of the line where the dust-proof structure is not located, wherein an area of the first suction port is smaller than an area of the second suction port, and wherein the one wall includes a substrate mounting a component having heat inside the dust-proof structure, and a heat radiation component radiating the heat of the component outside the dust-proof structure.