Abstract: A projection display device is provided with a main body cabinet; a projection port which is formed in the main body cabinet to guide modulated light to an outside of the projection display device; an air outlet which is formed at least in one of two surfaces of the main body cabinet facing each other across the projection port; and an exhaust unit which discharges, to the outside, air that has been warmed by heat exchange with a member to be cooled which is disposed in the main body cabinet through the air outlet. In this arrangement, the exhaust unit includes an exhaust fan, and a deflection member which deflects air discharged from the exhaust fan in a direction away from the projection plane.

Abstract: A projection display device includes an opening formed in a main body cabinet; a part to be attached in the main body cabinet through the opening; a cover which covers the opening; a detector which detects closure of the cover; and a first contact part and a second contact part which contact each other when the cover is being closed, thereby to prevent the cover from being closed up to a position where the closure is detected by the detector. When the part to be attached is not attached, the first contact part is positioned on a line contacting the second contact part at closure of the cover and is capable of evacuating to a position out of the line. The projection display device further includes an evacuation part to evacuate the first contact part to the position out of the line when the part to be attached is attached.

Abstract: A projection display device is provided with a main body cabinet; a projection port which is formed in the main body cabinet to guide modulated light to an outside of the projection display device; an air outlet which is formed at least in one of two surfaces of the main body cabinet facing each other across the projection port; and an exhaust unit which discharges, to the outside, air that has been warmed by heat exchange with a member to be cooled which is disposed in the main body cabinet through the air outlet. In this arrangement, the exhaust unit includes an exhaust fan, and a deflection member which deflects air discharged from the exhaust fan in a direction away from the projection plane.

Abstract: A projection display device is provided with a main body cabinet including an air inlet; a light source unit which is disposed in the main body cabinet; and a cooling unit which is disposed adjacent to the light source unit, and cools the light source unit. In this arrangement, air drawn to an inside of the main body cabinet through the air inlet is drawn to an inside of the cooling unit, and is supplied to the light source unit. The cooling unit is provided with a filter section which removes unwanted matters from the air drawn to the inside of the cooling unit.

Abstract: A projection display device is provided with a cooling section which supplies air drawn from an outside of the projection display device to a member to be cooled which is disposed in a main body cabinet to cool the member to be cooled; a filter section which removes unwanted matters from air drawn to the cooling section; and a filter housing portion which detachably houses the filter section therein. In this arrangement, the main body cabinet is formed with an opening which passes the filter section therethrough in detaching the filter section from the filter housing portion. Further, the filter housing portion is formed with a first space on an air flow-in side of the filter section. Furthermore, the opening has at least such a size that the first space communicates with the outside through the opening.