Abstract
AbstractA compact light guide plate (LGP) with special designed microstructures and dual collimated light sources was proposed to achieve an adjustable riming angle backlight for eco‐display. The micro‐prisms were utilized to guide the emitting rays toward normal viewing cones while a set of strip patterned diffuser toward wide viewing cones. The uniformity of spatial luminous can reach 91% / 87% at view cone of ±3/±60 deg. in each mode. Only 5% of power consumption in narrow viewing angle mode was needed to keep the same luminance in wide viewing angle mode.
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