发明名称 |
Light Guide Element, Backlight Unit, and Display Device |
摘要 |
An object is to provide a novel structure of a backlight unit using color-scan backlight drive, which can relieve a color mixture problem. A backlight unit including a plurality of light guide elements is used. The light guide element has a shape extended in the x direction. The light guide element has a shape of rectangular column. Grooves are provided on a bottom surface of the light guide element so as to traverse it in the y direction. Light sources are provided at the ends of the light guide element in the x direction to supply light into the light guide element. Light supplied into the light guide element is reflected by the grooves in the z direction, and emitted to the outside of the light guide element through the top surface. A reflective layer may be provided under the bottom surface of the light guide element.
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申请公布号 |
US2012262940(A1) |
申请公布日期 |
2012.10.18 |
申请号 |
US201213446244 |
申请日期 |
2012.04.13 |
申请人 |
MIYAIRI HIDEKAZU;KOEZUKA EMI;TANAKA KOICHIRO;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
MIYAIRI HIDEKAZU;KOEZUKA EMI;TANAKA KOICHIRO |
分类号 |
G09F13/04;F21V8/00 |
主分类号 |
G09F13/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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