Patent ID: 7796210

Claim:
A flat panel display, comprising: a backlight module; a liquid crystal display panel disposed on the backlight module; and a complex diffuser plate disposed between the backlight module and the liquid crystal display panel, including a first, a second, a third and a fourth diffuser layers, wherein the first diffuser layer is adjacent to the liquid crystal display panel, the second diffuser layer is adjacent to the first diffuser layer, the third diffuser layer is adjacent to the second diffuser layer, the fourth diffuser layer is adjacent to the third diffuser layer and positioned between the third diffuser layer and the backlight module, as well as the first, the second, the third and the fourth diffuser layers have different refractive indexes, transmittances and haze values, and wherein the first diffuser layer includes a first recess and a first protrusion, the second diffuser layer includes a second protrusion and a second recess, the first recess is embedded to the second protrusion and the second recess is embedded to the first protrusion, thereby forming an embedding interface between the first diffuser layer and the second diffuser layer.