Patent ID: 9377577
Filing Date: 2016-06-28
CPC Classification: G02B

Claim Text:
1. A heat dissipating device for a backlight module and which is arranged between a backframe and a waveguide of the backlight module for dissipating heat generated from a light source disposed adjacent to an end of the waveguide, wherein the heat dissipating device includes a master heatsink, which is made of a material having a first composition, and an auxiliary heatsink, which is made of a material that has a second composition different from the first composition; wherein the master heatsink has a raised portion on which a surface of the waveguide is positioned and supported in such a way that an end of the waveguide that is located close to the light source is spaced from a non-raised portion the master heatsink and a space is defined between the surface of the waveguide and the non-raised portion of the master heatsink; and wherein the master heatsink has a sidewall extending from an end thereof to be in connection with the light source and the auxiliary heatsink is arranged in the space defined between the surface of the waveguide and the non-raised portion of the backframe and is located under the surface of the waveguide and between the sidewall and the raised portion of the master heatsink.