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    • 3. 发明申请
    • EDGE-LIT BACKLIGHT UNIT WITH THIN PROFILE
    • 带边缘轮廓的边缘背光单元
    • WO2010147745A1
    • 2010-12-23
    • PCT/US2010/036447
    • 2010-05-27
    • APPLE INC.QI, JunYIN, Victor H.ZHONG, John Z.CHEN, Wei
    • QI, JunYIN, Victor H.ZHONG, John Z.CHEN, Wei
    • G02F1/13357F21V8/00G02B6/00
    • G02B6/0053G02B6/0036G02B6/0061
    • An edge-lit backlight unit for a display is provided. In one embodiment, the backlight unit may include a light guide configured to receive light from a source and emit such light in a broad distribution to a turning film disposed over the light guide. The turning film may be configured to redirect light received from the light guide toward a normal of the turning film. In one embodiment, the light guide may be configured such that peak light distribution therefrom occurs at an incident angle of approximately sixty degrees, with broad light distribution substantially occurring over an angular range between incident angles of thirty-five and eighty- five degrees. Additionally, in one embodiment, the turning film may include multiple prisms that receive and redirect the light emitted from the light guide, and that include apex angles of less than or about sixty degrees. Additional edge-lit backlight units and methods are also disclosed.
    • 提供了用于显示器的边缘照明背光单元。 在一个实施例中,背光单元可以包括被配置为从源接收光并且以广泛分布的方式将这种光发射到设置在光导上的转向膜的光导。 转向膜可以被配置为将从光导中接收的光朝向转向膜的法线重定向。 在一个实施例中,光导可以被配置为使得其峰值光分布以大约六十度的入射角发生,其中宽光分布基本上在三十五到八十五度的入射角之间的角度范围内发生。 另外,在一个实施例中,转向膜可以包括多个棱镜,其接收和重定向从光导发射的光,并且包括小于或大约六十度的顶角。 还公开了另外的边缘照明背光单元和方法。