| 摘要 |
A backlight system ( 100 ) includes a reflecting frame ( 50 ) with a reflecting bottom ( 53 ) and a reflecting sidewall ( 52 ) defining an opening, a diffusing sheet ( 60 ) and a prism sheet ( 70 ) located at the opening of the reflecting frame in that order, and an array of light emitting diode modules ( 51 ) regularly disposed on the reflecting bottom. The light emitting diode module includes a number of red, green, and blue light emitting diodes ( 30 ) regularly arranged to obtain a white light. Each of the light emitting diodes includes a substrate ( 31 ), a light emitting diode chip ( 32 ) arranged on and electrically connecting with the substrate, and a conical transparent cover ( 33 ) arranged on the substrate and surrounding the light emitting diode chip. A number of microstructures ( 333 ) is formed on an inner surface of the transparent cover.
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