SYSTEM AND METHOD FOR PROVIDING BACKLIGHTING IN LIQUID CRYSTAL DISPLAY (LCD) DEVICES

摘要

An exemplary display device (10) is provided having increased brightness and light distribution uniformity, resulting in improved backlighting. The exemplary display device (10) comprises a plurality of lamps (22) arranged such that each of the lamps (22) is substantially parallel with the others. The exemplary display device (10) additionally comprises a holographic diffuser (34) aligned so that a first diffusion axis diffuses light produced by the plurality of lamps (22) in a first direction (24) and a second diffusion axis diffuses light produced by the plurality of lamps (22) in a second direction (26), the first direction (24) being substantially perpendicular to the plurality of lamps (22) and the second direction (26) being substantially parallel to the plurality of lamps (22), wherein substantially more of the light produced by the plurality of lamps (22) is diffused in the first direction (24). The diffusion of the light output produced by the plurality of lamps (22) by the holographic diffuser (34) creates the effect of a single uniform illumination source.