| 摘要 |
A liquid crystal display unit comprising a back light (1), a light parallelizing mean (2) for parallelizing light beams incident from the back light (1) for outputting, and a liquid crystal cell (3) for letting light beams output from the light parallelizing means (2) pass therethrough, and a viewing angle expanding means (4) for diffusing the liquid crystal cell (3)-passed light beams to expand a viewing angle, characterized in that the light parallelizing means (2) does not have a regular pattern structure capable of producing a Moire fringe or an interference fringe between it and the regular pattern structure of another optical member constituting a liquid crystal display unit (10).
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