| abstract |
Provided is a projection display device employing a light-emitting body made of an organic EL element that is lightweight and compact and practical. In particular, it is possible to suppress the deterioration of the luminous performance due to heat generation, to prolong the life, to stabilize the luminance and to ensure the highest luminance at all times.n n n Cooling for dissipating heat generated in the light emitting layer while being disposed on the back of the liquid crystal panel 12R, 12G, 12B and the liquid crystal panel, and provided on the back of the light emitting body 13R, 13G, 13B having the organic EL element as a light emitting layer and the light emitting layer. Sieve 14R, 14G, 14B is provided. The cooling bodies 14R, 14G, and 14B are, for example, electronic cooling elements using a Ferrule effect of absorbing and dissipating generated heat. In addition, the cooling body may be formed by a heat radiation beam that induces and dissipates generated heat. |