Quantum dot backlight module and display device

Abstract

The invention discloses a quantum dot backlight module, which comprises a light-emitting diode, a reflector plate, a light guide plate, a plurality of halftone dots and a plurality of quantum dots; the light guide plate is arranged above the reflector plate; the halftone dots are arranged on the upper surface of the light guide plate at intervals; the quantum dots are packaged in the corresponding halftone dots; the light-emitting diode is arranged at the side edge of the light guide plate; semiconductor quantum dot fluorescent powder fills in each quantum dot. According to the quantum dot backlight module disclosed by the invention, the use ratio of a quantum dot material can be effectively improved; as the halftone dots arranged at intervals are adopted and the quantum dots are packaged in the corresponding halftone dots, a whole quantum dot membrane is not needed, and the goals that the consumption of the quantum dot material is reduced, the cost is reduced are further achieved; moreover, the goals that the light-emitting diode effectively emits heat and a wide color gamut is realized can be achieved.

Description

【Technical field】 [0001] The invention relates to the field of display technology, in particular to a quantum dot backlight module and a display device. 【Background technique】 [0002] Semiconductor quantum dot phosphor is a new type of white light LED (Light Emitting Diode, light emitting diode) luminescent material. Its particles are particles that are larger than water molecules and smaller than viruses. Based on their own particle size, they can be converted from standard blue light The light emitted by the light-emitting diode light source is converted into light of different wavelengths. Larger particles can excite long-wavelength light (such as red light), while smaller particles are converted into short-wavelength light (such as green light). These different particles mix Then a new spectrum is formed. Utilizing this quantum dot characteristic, a quantum dot enhanced film (Quantum Dot Enhanced Film, referred to as QDEF) can be prepared to use a standard blue LED lig...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a quantum dot backlight module and a display device, aiming to solve the problem in the prior art that the quantum dot film is placed above the light guide plate, which will lead to the problem that the quantum dot material cannot be effectively used, and In the process of making thin films, encapsulation around is a big problem. If the encapsulation is not good, it will cause cadmium pollution, which is very harmful. In addition, the quantum dot material itself will be affected by oxygen and water in the air and make it invalid.

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