| 摘要 |
A high-brightness and large-sized screen TV is provided. Said high-brightness and large-sized screen TV is composed of a machine case (1), a system circuit board (8), an optical projection system, a heat dissipation structure and a displaying screen (2). Said optical projection system comprises an optical engine (6) mounted on the lower hollow cavity (4) of the machine case (1), and also a reflecting lens (7) mounted on the upper hollow cavity (3) of the machine case (1). A clapboard (5) is arranged between the upper hollow cavity (3) and the lower hollow cavity (4). Said optical engine (6) comprises a light source, a filter, an optical system component and a projection lens. Said optical system component is sequentially composed of a first compound eye (a), a filter (b), a second compound eye (c) , a polarizer (e) , a color splitting mirror (f), a prism (g) and a micro-displaying chip according to the direction of the beam path. Said heat dissipation structure is composed of a heat dissipation fan (10,11) and a wind channel. Said wind channel has two air-inlets (12, 13) and four air-outlets. Said four air-outlets are respectively the red light outlet (14) , the blue light outlet (15), the green light outlet (16) and the polarizer outlet (17). Said high-brightness and large-sized screen TV can not only perfectly improve the displaying brightness, but also solve the problem of the picture uniformity. Said high-brightness and large-sized screen TV has no distinct dark space. Moreover, the whole- machine power is low. |
