Electro-optical device encased in mounting case, projection display apparatus, and mounting case

An electro-optical apparatus, comprising:

• an electro-optical device having an image display region on which projected light from a light source is incident;
• and
• a mounting case in which the electro-optical device is encased including a plate disposed to face one surface of the electro-optical device and a cover to cover the electro-optical device, the cover having a portion abutting on the plate, the mounting case accommodating the electro-optical device by holding at least a portion of a circumferential region positioned at the periphery of the image display region of the electro-optical device with at least one of the plate and the cover,
• the cover including a cover main body to accommodate the electro-optical device and a cooling air introducing portion provided to extend from or along the cover main body,
• the cooling air introducing portion having a cooling air scattering prevention portion to allow the cooling air, which is blown to the electro-optical device encased in the mounting case, to flow toward the cover main body,
• the cooling air introducing portion includes a slope portion having a pointed shape whose tip faces a direction against the flow of the cooling air,
• the cooling air scattering prevention portion includes the slope portion,
• the cover main body having a window to expose the image display region to the outside,
• a surface of the image display region of the electro-optical device exposed through the window being continuous with the surface constituting the slope portion, and
• the edge of the window having a tapered shape.

An electro-optical apparatus, comprising:

• an electro-optical device having an image display region on which projected light from a light source is incident;
• and
• a mounting case in which the electro-optical device is encased including a plate disposed to face one surface of the electro-optical device and a cover to cover the electro-optical device, the cover having a portion abutting on the plate, the mounting case accommodating the electro-optical device by holding at least a portion of a circumferential region positioned at the periphery of the image display region of the electro-optical device with at least one of the plate and the cover,
• the cover including a cover main body to accommodate the electro-optical device and a cooling air introducing portion provided to extend from or along the cover main body,
• the cooling air introducing portion having a cooling air scattering prevention portion to allow the cooling air, which is blown to the electro-optical device encased in the mounting case, to flow toward the cover main body,
• the cover further having a cooling air discharging portion to discharge the cooling air which is blown from the cover main body from the cover,
• the cooling air discharging portion having a first surface-area increasing portion to increase the surface-area thereof,
• the cover having a side wall portion facing the side of the electro-optical device in the cover main body,
• the side wall portion having a second surface-area increasing portion to increase the surface-area thereof, and
• at least one of the first surface-area increasing portion and the second surface-area increasing portion including fins provided to protrude from the surface of the cover.

An electro-optical apparatus comprising:

• an electro-optical device having an image display region on which projected light from a light source is incident;
• and
• a mounting case in which the electro-optical device is encased including a plate disposed to face one surface of the electro-optical device and a cover to accommodate and cover the electro-optical device, the cover having a portion abutting on the plate, the mounting case accommodating the electro-optical device by holding at least a portion of a circumferential region positioned at the periphery of the image display region of the electro-optical device with at least one of the plate and the cover,
• the cover including:
• a main surface with an opening that exposes the image display region of the electro-optical device,
• a side surface that intersects the main surface,
• a first baffle that directs flow of cooling air toward the opening in the main surface, and
• a second baffle that directs flow of cooling air to the side surface, and
• a cooling air introducing portion having a slope portion having a pointed shape.

An electro-optical apparatus comprising:

• an electro-optical device having an image display region on which projected light from a light source is incident;
• and
• a mounting case in which the electro-optical device is encased including a plate disposed to face one surface of the electro-optical device and a cover to accommodate and cover the electro-optical device, the cover having a portion abutting on the plate, the mounting case accommodating the electro-optical device by holding at least a portion of a circumferential region positioned at the periphery of the image display region of the electro-optical device with at least one of the plate and the cover,
• the cover including:
• a main surface with an opening that exposes the image display region of the electro-optical device,
• a side surface that intersects the main surface,
• a first baffle that directs flow of cooling air toward the opening in the main surface, and
• a second baffle that directs flow of cooling air to the side surface,
• a cooling air introducing portion having a cooling air guiding portion to allow the cooling air, which is blown to the electro-optical device encased in the mounting case, to flow toward the image display region.

A mounting case, comprising:

• a plate disposed to face one surface of an electro-optical device having an image display region on which projection light from a light source is incident;
• and a cover to cover the electro-optical device, the cover having a portion abutting on the plate;
• and
• the mounting case accommodating the electro-optical device by holding at least a portion of a circumferential region positioned at the periphery of the image display region of the electro-optical device with at least one of the plate and the cover,
• the cover including:
• a main surface with an opening that exposes the image display region of the electro-optical device,
• a side surface that intersects the main surface,
• a first baffle that directs flow of cooling air toward the opening in the main surface, and
• a second baffle that directs flow of cooling air to the side surface.

An electro-optical apparatus, comprising:

• an electro-optical device having an image display region on which projected light from a light source is incident;
• and
• a mounting case in which the electro-optical device is encased including a plate disposed to face one surface of the electro-optical device and a cover to cover the electro-optical device, the cover having a portion abutting on the plate, the mounting case accommodating the electro-optical device by holding at least a portion of a circumferential region positioned at the periphery of the image display region of the electro-optical device with at least one of the plate and the cover,
• the cover including a cover main body to accommodate the electro-optical device and a cooling air introducing portion provided to extend from or along the cover main body,
• the cooling air introducing portion having a cooling air scattering prevention portion to allow the cooling air, which is blown to the electro-optical device encased in the mounting case, to flow toward the cover main body,
• the cover further having a cooling air discharging portion to discharge the cooling air which is blown from the cover main body from the cover,
• the cooling air discharging portion having a first surface-area increasing portion to increase the surface-area thereof,
• the cover having a side wall portion facing the side of the electro-optical device in the cover main body,
• the side wall portion having a second surface-area increasing portion to increase the surface-area thereof, and
• at least one of the first surface-area increasing portion and the second surface-area increasing portion including dimples provided to form recesses on the surface of the cover.