Patent ID: 8684536

Claim:
A cooling apparatus for a liquid crystal image display that includes a liquid crystal unit comprising an incident-side polarizing plate, a liquid crystal panel, and an exit-side polarizing plate, wherein said incident-side polarizing plate, said liquid crystal panel, and said exit-side polarizing plate are disposed side by side with a gap therebetween to have a same in-plane direction, said cooling apparatus comprising: a first air cooling unit for feeding a first air stream in an orientation of said in-plane direction; and a second air cooling unit for feeding a second air stream in said in-plane direction in a different orientation from said first air stream by said first air cooling unit, wherein said first air cooling unit and said second air cooling unit are set such that said first air stream and said second air stream collide with each other between said incident-side polarizing plate and said liquid crystal panel and/or between said liquid crystal panel and said exit-side polarizing plate such that an impinging jet flows perpendicular to at least the liquid crystal panel is generated, wherein the first air cooling unit includes a first discharge port, and the second air cooling unit includes a second discharge port, wherein the first discharge port and the second discharge port are placed across each other with respect to the liquid crystal unit, and wherein the first discharge port and the second discharge port are placed offsetting each other from a central line of the liquid crystal unit.