A quantum dot light-emitting element, backlight module and display device

Abstract

The present invention provides a quantum dot light-emitting component, a backlight module set and a display device and belongs to the photovoltaic device field. The objective of the invention is to reduce backscattering light loss and improve the light-emitting efficiency of a quantum dot light-emitting component. The quantum dot light-emitting component of the invention includes a linear polarization excitation light source, a linear polarization selection device and a quantum dot layer, wherein the linear polarization excitation light source is used for emitting linearly polarized light, the linear polarization selection device is arranged in the light outgoing direction of the linear polarization excitation light source and is used for selectively transmitting the linearly polarized light emitted by the linear polarization excitation light source, the quantum dot layer is arranged in the light outgoing direction of the polarization selection device and is excited by the linearly polarized light selectively transmitted by the linear polarization selection device so as to emit light; and the linear polarization excitation light source, the linear polarization selection device and the quantum dot layer are encapsulated together with a shell, so that an integrated encapsulation structure can be formed. The quantum dot light-emitting component provided by the embodiments of the invention is applied to quantum dot light-emitting component production.

Description

Technical field [0001] The invention relates to the field of optoelectronic devices, in particular to a quantum dot light-emitting element, a backlight module and a display device. Background technique [0002] In the display technology equipment industry, the current backlight scheme with the highest color gamut is a scheme in which blue light excites quantum dot materials to generate white light, and the color gamut can reach 100% NTSC (English full name: National Television Standards Committee, Chinese abbreviation: National Television Standards Committee) standards Above, in the prior art, the quantum dot LED (English full name: Light Emitting Diode, Chinese: Extreme Light Emitting Diode) is used as the blue light source in the blue light source solution. The quantum dot layer is set above the ordinary blue LED chip, and blue light is not considered. The problem of backward astigmatism after exciting the quantum dot layer. [0003] Reference figure 1 As shown, it shows a schem...

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Problems solved by technology

[0003] refer to figure 1 As shown, a schematic diagram of the principle of a common practice in the industry is shown, including a blue LED chip (1) and a quantum dot layer (2), wherein the blue light emitted by the blue LED chip (1) is excited after reaching the quantum dot layer The quantum dot material produces white light i1 and i2, and produces backscattered light i2 while producing forward scattered light i1, and the backscattered light i2 is directly reflected back to the blue LED chip (1) and lost, which affects the light output of the quantum dot light-emitting layer efficiency

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