Patent ID: 6906774

Claim:
A packaging case-encased electro-optical device, comprising: an electro-optical device where projection light from a light source enters an image display area, the electro-optical device including a pair of substrates; a dust-proof substrate disposed on at least one of a light incident plane and a light emitting plane of the electro-optical device; a first light blocking film formed on the dust-proof substrate; a second light blocking film formed on at least one of the pair of substrates; and a packaging case to hold at least a part of a peripheral area in a periphery of the image display area in the electro-optical device and housing the dust-proof substrate by having sides arranged at at least two sides of the dust-proof substrate, the packaging case including an opening that exposes therethrough the image display area of the electro-optical device, the second light blocking film, the first light blocking film, the dust-proof substrate and the packaging case configuring a heat conducting path.