Patent ID: 8189128

Claim:
A liquid crystal display comprising: a liquid crystal panel; a plurality of first light sources disposed below the liquid crystal panel; a first diffusion member disposed between the liquid crystal panel and the plurality of first light sources; a plurality of second light sources disposed below the liquid crystal panel and which emits a sensing signal toward the liquid crystal panel; a plurality of sensors disposed one of in the liquid crystal panel and below the liquid crystal panel; and a second diffusion member disposed one of between the liquid crystal panel and the first diffusion member, and on the liquid crystal panel, the second diffusion member disposed directly over the plurality of sensors, wherein the sensing signal emitted from the plurality of second light sources toward the liquid crystal panel is reflected away from the liquid crystal panel toward the plurality of sensors by an object disposed above the liquid crystal panel, and the sensing signal reflected from the object is detected by the plurality of sensors before transmitting through the first diffusion member away from the liquid crystal panel, wherein parallel transmittance is defined as a ratio of a luminance of light emitted through a diffusion member at an angle within approximately 5 degrees of an incidence direction of the light to a total luminance of all light emitted through the diffusion member, and the parallel transmittance of the second diffusion member is greater than a parallel transmittance of the first diffusion member.