Patent ID: 8294342
Filing Date: 2012-10-23
Classification: G02B,H01J,H05K

Abstract:
1. A plasma television comprising: a plasma display panel; and an optical laminate situated on an image-displaying side of the plasma display panel and adhering to the plasma display panel, wherein the optical laminate has a layer configured to control light incident on the layer and then allow the light to exit towards an observer side, wherein the optical laminate includes: an optical functional sheet layer having multiple prisms capable of transmitting light and multiple light-absorbing parts capable of absorbing light, the multiple prisms and the multiple light-absorbing parts being arranged alternately along a sheet plane of the optical laminate; a layer having a function of shielding electromagnetic waves; and a layer having a function of preventing reflection of light; wherein the layer having a function of shielding electromagnetic waves is positioned on a side opposite to the observer side relative to the optical functional sheet layer, and the optical functional sheet layer is positioned between the layer having a function of shielding electromagnetic waves and the layer having the function of preventing reflection of light, wherein the optical laminate is composed of a plurality of layers adhered to each other, the plurality of layers at least including the optical functional sheet layer, the layer having a function of shielding electromagnetic waves, and the layer having a function of preventing reflection of light, and wherein the layer having a function of shielding electromagnetic waves also functions to diffuse light.