OPTICAL SHEET, BACKLIGHT UNIT, AND DISPLAY DEVICE
PROBLEM TO BE SOLVED: To provide an optical sheet capable of striking a balance between excellent brightness and excellent shielding performance, and to provide a backlight unit using the optical sheet, and a display device. SOLUTION: In this optical sheet 1 used for illumination optical path contro...
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Main Author | |
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Format | Patent |
Language | English |
Published |
19.05.2011
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide an optical sheet capable of striking a balance between excellent brightness and excellent shielding performance, and to provide a backlight unit using the optical sheet, and a display device. SOLUTION: In this optical sheet 1 used for illumination optical path control, for controlling an optical path of light entering from a light source 15 and emitting the light, an optical shape for condensing or diffusing light is formed on a light emission surface, and the optical shape is constituted of a combination of an approximately hemispherical microlens and a prism, and surface-roughening processing is applied to the surface of the optical shape. Hereby, high brightness and high shielding performance can be exhibited. COPYRIGHT: (C)2011,JPO&INPIT |
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Bibliography: | Application Number: JP20090253330 |