CPC G02B 6/002 (2013.01) [G02B 6/0055 (2013.01); G02B 6/0073 (2013.01); G02B 6/0088 (2013.01); G02B 6/009 (2013.01); G02B 6/0091 (2013.01)] | 11 Claims |
1. A light guide module, comprising:
a circuit board;
one or more light-emitting elements disposed on the circuit board;
a light guide plate located on the circuit board, wherein the light guide plate has a thick portion and a thin portion connected to the thick portion, and the thin portion is located over the one or more light-emitting elements, and a side surface of the thick portion adjacent to the thin portion is laterally adjacent to the one or more light-emitting elements, wherein a side surface of the thin portion away from the thick portion is a light-exiting surface;
a first reflective layer covering a side surface of the thick portion away from the thin portion; and
a second reflective layer covering an upper surface of the thick portion and an upper surface of the thin portion.
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