Abstract: A surface light source device is additionally disposed with a light guide bar between a light-emitting source and a light guide film to collect rays emitted from the light-emitting source and transmit the rays to a light incident surface of the light guide film. A thickness of the light guide bar is designed to be gradually tapered to achieve the objective of reduction in the thickness of a conventional light guide plate. Moreover, the surface light source device can be applied in an edge-lit type backlight module and a display device, as well as in the illumination field.

Abstract: A surface light source device is additionally disposed with a light guide bar between a light-emitting source and a light guide film to collect rays emitted from the light-emitting source and transmit the rays to a light incident surface of the light guide film. A thickness of the light guide bar is designed to be gradually tapered to achieve the objective of reduction in the thickness of a conventional light guide plate. Moreover, the surface light source device can be applied in an edge-lit type backlight module and a display device, as well as in the illumination field.

Abstract: An illuminating device includes a case, a heat sink block, an LED array, two waterproof plastic sheets and two covers. The case has a fluid inlet, a fluid outlet and two partition grooves. The heat sink block has a carrying platform and a fluid channel. The fluid channel is conformally disposed in the partition grooves and communicated with the fluid inlet and the fluid outlet. The LED array is located on the carrying platform. The waterproof plastic sheets respectively overlay the fluid inlet and the fluid outlet. The waterproof plastic sheets have a first opening communicated with the fluid channel. The covers respectively overlay the waterproof plastic sheet and a part of the case and have a second opening corresponding to the first opening. A fluid flows through the fluid channel via the second openings and the first openings so as to discharge heat from the LED array.

Abstract: An illuminating device includes a case, a heat sink block, an LED array, two waterproof plastic sheets and two covers. The case has a fluid inlet, a fluid outlet and two partition grooves. The heat sink block has a carrying platform and a fluid channel. The fluid channel is conformally disposed in the partition grooves and communicated with the fluid inlet and the fluid outlet. The LED array is located on the carrying platform. The waterproof plastic sheets respectively overlay the fluid inlet and the fluid outlet. The waterproof plastic sheets have a first opening communicated with the fluid channel. The covers respectively overlay the waterproof plastic sheet and a part of the case and have a second opening corresponding to the first opening. A fluid flows through the fluid channel via the second openings and the first openings so as to discharge heat from the LED array.