Optical film, lighting module including the same and display including lighting module

Abstract

An optical film comprises a first substrate, a second substrate, a diffusion layer, and a plurality of microstructures. The first substrate includes a first surface, opposite to the first surface, and a light incident surface of the second substrate and the first substrate are arranged at intervals, and includes a second surface facing the first surface, and a second surface opposite to the light outgoing surface of the diffusion layer is positioned between the first and second substrates., and comprises a plurality of quantum dots and the micro structure is formed on the first substrate, a first color light incident surface of the first substrate via the incident surface through the diffusion layer., and a second substrate by the light outgoing surface, and the first color light to excite the quantum dots to emit a wavelength greater than the wavelength of the first color of the second color light, through the micro-structure, so that the first color light through the micro structure changes its optical path in the diffusion layer more quantum dot is excited, so as to achieve the purpose of a wide color gamut. The invention also provides a light-emitting device of the optical film, and display having the light emitting device.

Description

technical field [0001] The invention relates to an optical film, a light-emitting device, and a display, in particular to an optical film capable of improving color gamut, a light-emitting device using the optical film, and a display using the light-emitting device. Background technique [0002] Compared with existing organic fluorescent materials, quantum dot fluorescent materials have better luminous efficiency, and quantum dot fluorescent materials of different materials or particle sizes will emit excitation light of different wavelengths after being irradiated by an excitation light source. It is highly valued by related technical fields. [0003] Generally speaking, when quantum dot fluorescent materials are applied to a backlight module of a display, a light-emitting diode unit with a single color is used as an excitation light source to excite quantum dot fluorescent materials of different materials or particle sizes. , so as to generate a variety of light sources o...

AI Technical Summary

Problems solved by technology

When the backlight module applied to the display can emit a backlight with a high color gamut, the color displayed by the display can be richer, and the color closer to the object itself can be presented and the color is vivid; on the contrary, the low color gamut The backlight of the display will make the color displayed by the display deviate, and cannot fully express the actual color of the object

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