OPTICAL SHEET, BACKLIGHT UNIT, AND DISPLAY DEVICE
PROBLEM TO BE SOLVED: To provide an optical sheet with excellent condensation property, diffusion characteristic and a configuration inhibiting interference fringe, that can protect the optical sheet itself from damage due to warping or twisting even when another optical sheet is laminated on a ligh...
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Main Author | |
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Format | Patent |
Language | English |
Published |
24.05.2012
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide an optical sheet with excellent condensation property, diffusion characteristic and a configuration inhibiting interference fringe, that can protect the optical sheet itself from damage due to warping or twisting even when another optical sheet is laminated on a light emission surface.SOLUTION: An optical sheet 10 includes a substantially hemispherical microlens 31 and a prism lens 19 provided on a light emission surface 10b where a cross section height h of the microlens 31 in a cross section along a top part of the prism lens 19 is randomly varied in a range of a height H1 at the highest. |
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Bibliography: | Application Number: JP20100244473 |