Patent ID: 9678265
Date: 2017-06-13
CPC Classifications: G02B

Claim:
1. A backlight module, comprising a light guide plate and an LED lamp strip, wherein the light guide plate is configured to guide light emitted from an LED lamp of the LED lamp strip, the light guide plate comprises a first surface and a second surface opposite to the first surface, and a light incident surface provided at a side portion of the light guide plate and extending between the first and the second surfaces, the first surface is a light emitting surface of the light guide plate, the light incident surface of the light guide plate is provided with at least one indentation having a tapered shape, the at least one indentation is provided with a first top portion adjacent to the first surface, a second top portion adjacent to the second surface, a bottom between the first and second top portions, a first side wall extending from the first top portion to the bottom and a second side wall extending from the second top portion to the bottom, the LED lamp is configured to be locked in the at least one indentation with the LED lamp in contact with the first and second side walls, such that a light emitting center line of the LED lamp coincides with a light incident center line of the light guide plate, wherein a shape of the at least one indentation is a shape matching a shape of the LED lamp.