Patent ID: 7059757
Filing Date: 2006-06-13
Classification: G02F,G09F

Abstract:
1. A liquid crystal display device, comprising a plurality of lamps, a shield portion for accommodating the lamps, a light diffusion plate and/or an optical sheet, respectively, mounted on a marginal portion of the shield portion, a liquid crystal display panel disposed opposite to one side of the light diffusion plate and/or the optical sheet opposed each with the other side to the lamps, wherein the shield portion is provided with a vent in at least a marginal portion for communication with ambient air, the light diffusion plate and/or the optical sheet are provided each with a vent made in a marginal portion opposite to at least a part of the vent provided in the marginal portion of the shield portion, and a lamp chamber located in the lamp-accommodating side of the light diffusion plate and/or the optical sheet and an LCD panel chamber located in the LCD panel-disposing side of the light diffusion plate and/or the optical sheet communicate with each other through the vent of the light diffusion plate and/or the optical sheet and the vent in the marginal portion of the shield portion and at the same time with the ambient air through a passage formed by the vents.