| 摘要 |
PURPOSE: A mosaic prism sheet for an LCD(Liquid Crystal Display) back panel is provided to make a prism sheet having various characteristics by differentiating the size of a unit pattern, heights or vertical angles of triangle prisms in prism sheet pieces collecting light in horizontal and vertical directions. CONSTITUTION: One piece of prism sheet is divided like patterns of a checker board. Horizontally arranged triangle prism pieces and vertically arranged triangle prism pieces(18) are alternately arranged, wherein the horizontally arranged triangle prism pieces and vertically arranged triangle prism pieces are formed in the same shape and the size.
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