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Chromatic optical filter with polarization function based on one-dimensional metal photon crystals

A metal photonic crystal and color filter technology, applied in the field of color filters, can solve the problems of low fluorescence excitation efficiency and low optical efficiency, and achieve the effects of reducing power consumption, improving optical efficiency, and improving integration.

Inactive Publication Date: 2010-04-21
SHANGHAI JIAO TONG UNIV
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  • Description
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Problems solved by technology

The structure is not optically efficient due to the low efficiency of fluorescence excitation

Method used

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  • Chromatic optical filter with polarization function based on one-dimensional metal photon crystals
  • Chromatic optical filter with polarization function based on one-dimensional metal photon crystals
  • Chromatic optical filter with polarization function based on one-dimensional metal photon crystals

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Embodiment Construction

[0023] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0024] Such as figure 1 and image 3 As shown, this embodiment includes: a substrate 1, 1920*1024 light absorption matrices 2 and corresponding one-dimensional micron metal gratings 3, wherein: light absorption matrices 2 are regularly arranged on the surface of the substrate 1, and one-dimensional micron metal gratings 3 are located Absorbance Matrix 2.

[0025] The substrate 1 is made of glass; the metal grating is made of silver;

[0026] Such as figure 2 and image 3 As shown, every three light-absorbing matrices 2 form a grating unit, which corresponds to a pixel of a flat-panel liquid crystal display pa...

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Abstract

The invention relates to a chromatic optical filter with a polarization function based on one-dimensional metal photon crystals in the technical field of a purely-flat liquid crystal display, which comprises a basal plate, a plurality of light absorption matrixes and one-dimensional submicron metal gratings, wherein the light absorption matrixes are regularly distributed at the surface of the basal plate, one one-dimensional submicron metal grating with a specific period is arranged in each light absorption matrix, the light absorption matrixes correspond to the sub-pixels of a panel of the purely-flat liquid crystal display, three light absorption matrixes form a unit which corresponds to one pixel of the panel of the purely-flat liquid crystal display, and three one-dimensional submicron metal gratings are respectively arranged on the lattice points of the three light absorption matrixes fixedly. The invention utilizes the diffraction of non-absorptive type optical gratings for optical filtering and can enhance the optical efficiency and lower the power consumption; meanwhile, the optical filter has polarization penetration property and can replace a front polarization piece in a liquid crystal panel, lowers the cost and enhances the integration degree.

Description

technical field [0001] The invention relates to a device in the technical field of flat liquid crystal displays, in particular to a color filter with polarization function based on a one-dimensional metal photonic crystal. Background technique [0002] Flat-screen liquid crystal display (flat-screen liquid crystal display) LCD panel is composed of light source, light guide plate, diffusion film, prism anti-reflection film, front polarizer, liquid crystal layer, color filter, rear polarizer and driver IC. The liquid crystal layer drives the IC to control the voltage change, so that the liquid crystal molecules rotate, and the polarization state of the incident light is controlled. Combined with the front and rear polarizers, the amount of light output can be controlled, so that grayscale display can be realized. To realize the color of the pixel, a color filter (Colour Filter, CF) is required, which contains red, green and blue color filter sub-pixels. [0003] The structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20G02F1/1335
Inventor 叶志成欧阳世宏苏翼凯
Owner SHANGHAI JIAO TONG UNIV
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