A color filter device capable of dynamically adjusting the filter wavelength in a wide spectral range

Abstract

The invention discloses a color filtering device capable of achieving color filtering wavelength dynamic regulation in a wide spectral range. The device comprises a cylindrical cavity, an oil-phase fluid, an aqueous-phase fluid and metal nanoparticles evenly distributed on an oil-water two-phase fluid interface, wherein the oil-phase fluid, the aqueous-phase fluid and the metal nanoparticles are arranged in the cylinder. The side wall and the bottom of the cylindrical cavity are both provided with two independent electrodes, the wetting characteristic of the surface of the side wall of the aqueous-phase fluid is adjusted according to the electro-wetting principle, and accordingly quick and recoverable adjustment of the curvature of the oil-water two-phase fluid interface is achieved. Besides, the metal nanoparticles are distributed periodically, and an expected color is output by selectively transmitting light with a specific wavelength through a surface plasma. The transmission wavelength is influenced by the distribution density of a metal nanoparticle array so that the distribution density of the metal nanoparticle array can be dynamically regulated in a quick and recoverable mode through the electro-wetting principle, and accordingly the output color is correspondingly regulated.

Description

technical field [0001] The invention relates to a color filter device capable of dynamically adjusting the color filter wavelength in a wide spectral range. Background technique [0002] The emergence of new thin and light portable optoelectronic device technologies, such as flat panel display technology, has had a profound impact on the traditional information transmission field. The device structure can become thinner and thinner, and the device performance is more stable and reliable, which has more important research value and commercialization prospects. [0003] Among them, the LCD flat panel display device is a typical representative, which has excellent resolution, color reproduction characteristics and picture quality. The color filter device is a very important part of the color LCD display. [0004] The traditional color filter device is composed of multiple sub-color filters used to realize red, green and blue (RGB). The color that each sub-color filter can prod...

AI Technical Summary

Problems solved by technology

[0005] Meanwhile, each sub-color filter is manufactured using a complicated process that repeatedly performs photoresist coating, exposure, development, and hardening processes according to each color, and a production line for color filter processing Often needs to be separated from the production line used for other component processing, which greatly increases the cost of the production line

[0006] In addition, the low transmittance of such color filters greatly affects the transmitted brightness of the backlight, thereby reducing device efficiency

Although engineers and technicians propose to replace traditional color filters with surface plasmons to improve transmittance, these surface plasmon technologies are all based on a specific metal layer structure, and once the processing is completed, the colors that can be produced are uniquely determined , unable to achieve dynamic color

Images