| 摘要 |
A liquid crystal backboard having two areas with different heat transfer coefficients is provided. The liquid crystal backboard includes a first area and a second area. The first area is located at the light incident side of the liquid crystal backboard and possesses a first metal board (201), while the second area possesses a second metal board (202), besides, the heat transfer coefficient of the first metal board (201) is larger than that of the second metal board (202). In order to meet the requirement of high heat dissipation of the light incident side of the liquid crystal backboard, the invention adopts metal boards with high heat transfer coefficient arranged at the light incident side of the liquid crystal backboard, while the rest area of the liquid crystal backboard utilizes cheaper metal boards. So, the invention provides good heat dissipation and at the same time cuts the cost. In addition, the liquid crystal backboard is connected by welding or riveting method so that production efficiency is improved without considerating the fixing place of the bolts when designing, thus the design difficulty is reduced. |
