Prism sheet of liquid crystal display and back light unit using the same
OwnerSang Gon Lee, Chang Jong Kim +7inventors
InventorsSang Gon Lee, Chang Jong Kim, Young Gun Kim, Yun Ho Choi, Ho Sung Chin, Boug Taek Hong, Kab Jin Hwang, Ung Sang Lee, Chul Young Kim
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Abstract
A prism sheet of a liquid crystal display (LCD) includes a body part made of a transparent resin material; and a plurality of intaglio-type optical unit structures arranged on the body part, each of the optical unit structures having an intaglio-type or a relief type polyhedron inside of a rectangular structure thereof, a center of the intaglio portion forming a line, not a dot.
Claims15
A prism sheet of a liquid crystal display, comprising:
- a body part made of a transparent resin material;
- and
- a plurality of intaglio-type optical unit structures arranged on the body part, each of the optical unit structures having an intaglio-type polyhedron in an inside of a rectangular structure thereof, a center of the intaglio portion forming a line.
A prism sheet of a liquid crystal display, comprising:
- a body part made of a transparent resin material;
- and
- a plurality of relief-type optical unit structures arranged on the body part, each of the optical unit structures having a relief-type polyhedron in an outside of a rectangular structure thereof, a center of the relief portion forming a line.
A back light unit of a liquid crystal display, comprising:
- a lamp for generating light;
- a light guide plate arranged adjacent to the lamp for guiding the light;
- a reflection plate arranged on a lower part of the light guide plate for preventing the light emitted from the lamp from leaking out;
- a diffusion sheet and a prism sheet arranged on an upper part of the light guide plate, for improving efficiency of the light emitted from the light guide plate, the prism sheet having:
- a body part made of a transparent resin material;
- and
- a plurality of intaglio-type optical unit structures arranged on the body part, each of the optical unit structures having an intaglio-type polyhedron in an inside of a rectangular structure thereof, a center of the intaglio portion forming a line.
Dependencies are inferred from the claim text.