A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer, accounting for 5 wt % or more of the polymer film. A method for manufacturing the polymer film is also provided, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder, a particle size of the liquid crystal polymer powder is 0.1 um to 20 um; providing a liquid crystal polymer glue, a solid content of which is greater than 3 wt %; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film, and the gel film is baked at a temperature of 300° C. to form a polymer film.

There are disclosed an electrically tunable metasurface and a method for modulating propagation characteristics of an incident plane wave. The electrically tunable metasurface comprising: i) a plurality of scatterer rings, each one of the plurality of scatterer rings including bow-tie radiator elements, the bow-tie radiator elements in a corresponding scatterer ring having a same geometric configuration; and ii) a plurality of electrodes, each electrode being configured to provide a biasing voltage to the corresponding scatterer ring. The method comprising: i) receiving, by an electrically tunable metasurface, the incident plane wave; and ii) modulating the propagation characteristics of the incident plane wave by providing specific biasing voltage to the corresponding scatterer rings.

A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer, accounting for 5 wt % or more of the polymer film. A method for manufacturing the polymer film is also provided, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder, a particle size of the liquid crystal polymer powder is 0.1 um to 20 um; providing a liquid crystal polymer glue, a solid content of which is greater than 3 wt %; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film, and the gel film is baked at a temperature of 300° C. to form a polymer film.

Metamaterials or artificial negative index materials (NIMs) have generated great attention due to their unique and exotic electromagnetic properties. One exemplary negative dielectric constant material, which is an essential key for creating the NIMs, was developed by doping ions into a polymer, a protonated poly (benzimidazole) (PBI). The doped PBI showed a negative dielectric constant at megahertz (MHz) frequencies due to its reduced plasma frequency and an induction effect. The magnitude of the negative dielectric constant and the resonance frequency were tunable by doping concentration. The highly doped PBI showed larger absolute magnitude of negative dielectric constant at just above its resonance frequency than the less doped PBI.

A backlight module and a liquid crystal display device are provided. By forming a diffusion layer on a light emitting surface of each of a plurality of light emitting diodes (LEDs), a light shadow and a LED light path generated by misalignment between the LEDs and a light guide plate and deformation of a reflective sheet can be effectively avoided. The backlight module emits light of uniform brightness to improve display performance of the liquid crystal display device.

The invention relates to a plasmonic device and a method for fabricating a plasmonic device. The plasmonic device comprises a substrate on which is arranged a plasmonic section which includes at least one inorganic confining structure adjacent to an organic optical material for providing a plasmonic waveguide. The organic optical material originates from one or more processes for arranging the organic optical material in a limited area. A protective layer is deposited for covering and/or enclosing the organic optical material for improved reliability of the plasmonic waveguide.

The present disclosure is related to a non-volatile thermotropic composite material comprising a first component comprising a non-aqueous and non-volatile proton donating material; a second component comprising a monomer, an oligomer or a polymer as a proton accepting material; a non-volatile polymeric matrix; and wherein the non-volatile polymeric matric, the first component and the second component are configured to maintain at least one property which is reversibly changeable based on thermal energy received by or given out from the non-volatile thermotropic composite material. Proton donating materials include ionic liquid, poly(ionic liquid) and deep eutectic salt. The proton accepting material comprises at least an ether, a phenyl ester, an amide and an acrylate functional group. Also disclosed is a method of making said composite material comprising providing the first and second components and a non-volatile polymeric matrix and curing the mixture to form the non-volatile thermotropic composite material. The non-volatile thermotropic composite material can be used in smart windows.

A display panel, a manufacturing method thereof and a display device are provided. The display panel includes an array substrate and a color filter substrate disposed oppositely. A light transmission medium layer is provided between the array substrate and the color filter substrate, the light transmission medium layer being made of graphene oxide.

A backlight module and a liquid crystal display device are provided. By forming a diffusion layer on a light emitting surface of each of a plurality of light emitting diodes (LEDs), a light shadow and a LED light path generated by misalignment between the LEDs and a light guide plate and deformation of a reflective sheet can be effectively avoided. The backlight module emits light of uniform brightness to improve display performance of the liquid crystal display device.

A display panel, a manufacturing method thereof and a display device are provided. The display panel includes an array substrate and a color filter substrate disposed oppositely. A light transmission medium layer is provided between the array substrate and the color filter substrate, the light transmission medium layer being made of graphene oxide.