Polarized color light-splitting apparatus

Abstract

A polarization color light dividing apparatus comprises a lens element and a triangular structure element; the lens element comprises a first main body provided with polarization substance therein, the first main body is provided with a first light incident surface and a first light reflected surface, the first light incident surface and the first light reflected surface are respectively providedwith lens structures; the triangular structure element has a second light incident surface and a second light reflected surface, the second light incident surface and the second light reflected surface are respectively provided with triangular structures with microstructures; a white light beam is incident into the first main body by the first light incident surface, after the polarization substance polarized, the light beam is contracted by the lens structure of first light incident surface, then the light beam is divided into red, green and blue primary colors light beams by the triangle microstructure of the second light incident surface, then the red, green and blue primary colors light beams are guided into the collimating direction by the triangle microstructure of the second light reflected surface; thereby greatly improving the optical energy utilizing efficiency, improving the light ray collimation performance and contracting the light beam.

Description

technical field [0001] The invention relates to a polarized color light splitting device, especially a device for controlling color light splitting, polarization and aperture ratio by means of a micro / nano composite structure with polarized materials. Background technique [0002] The overall structure of a flat-panel liquid crystal display can be roughly divided into a backlight module, a polarizing polarizer, a TFT (Thin Film Transistor) liquid crystal module, a color filter film, a polarizing analyzer, and the like. As far as the current technology is concerned, the overall light energy utilization rate of the traditional flat-panel liquid crystal display is only 3-6%, which shows that its energy consumption is very serious. In flat-panel liquid crystal displays, the color filter film consumes the most energy, and its loss rate is about 70%, that is, the light efficiency of the traditional color filter film is only 30%. In addition, the polarized light The loss rate of t...

AI Technical Summary

Problems solved by technology

[0005] However, because the general light is composed of S-polarized light and P-polarized light with vertical and horizontal polarization characteristics, each accounting for about 50%, a traditional liquid crystal display is provided in the path where the light source enters the LCD panel from the backlight module. Polarizer, by means of the polarizer, the light in the required polarization direction (S polarized light) passes through, while the light in the other polarized direction (P polarized light) is absorbed, and the grating splitting design of this paper considers The light source is generally non-polarized light, and the polarization characteristics of the light are not considered, which will result in a light loss rate of up to 50%.

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