LED backlight module

A light emitting diode backlight module, comprising:

• a light emitting diode light source, the light emitting diode light source having a plurality of blue light emitting diodes;
• a quantum dot enhancement film, wherein the quantum dot enhancement film is configured to be excited by blue lights emitted by the blue light emitting diodes and emit red lights and green lights;
• a diffuser plate disposed between the light emitting diode light source and the quantum dot enhancement film;
• and
• a blue light filter and reflector disposed between the diffuser plate and the quantum dot enhancement film to guide the blue lights emitted by the blue light emitting diodes toward the quantum dot enhancement film and reflect a part of blue lights reflected by the quantum dot enhancement film toward the quantum dot enhancement film again, wherein a first surface, close to the quantum dot enhancement film, of the blue light filter and reflector is blue, and a second surface, close to the diffuser plate, of the blue light filter and reflector is not blue.

A light emitting diode backlight module, comprising:

• a light emitting diode light source, the light emitting diode light source having a plurality of blue light emitting diodes;
• a quantum dot enhancement film, wherein the quantum dot enhancement film is configured to be excited by blue lights emitted by the blue light emitting diodes and emit red lights and green lights;
• a diffuser plate disposed between the light emitting diode light source and the quantum dot enhancement film;
• a blue light reflector disposed at a side, opposite to the quantum dot enhancement film, of the diffuser plate to reflect a part of blue lights reflected by the diffuser plate toward the quantum dot enhancement film;
• and
• a blue light filter and reflector disposed between the diffuser plate and the quantum dot enhancement film to guide the blue lights emitted by the blue light emitting diodes toward the quantum dot enhancement film and reflect a part of blue lights reflected by the quantum dot enhancement film toward the quantum dot enhancement film again, wherein the blue light filter and reflector is a polyester base and an Azo compound dye film.