Provided is a piezoelectric color filter, wherein the piezoelectric color filter has piezoelectricity and comprises a photoluminescent material. The piezoelectric color filter may have a matrix of a first piezoelectric material being transparent or translucent; and quantum dots distributed in the matrix of the first piezoelectric material. Also provided are a piezoelectric color filter substrate, a display device, and a production method of the piezoelectric color filter.

Disclosed is a method and system for cost effective, convenient remote high fidelity color reproduction and matching that can be used to convey color to observers remote to the physical source of color. Such remote observers can include product consumers wishing to view a product color, for example. In a preferred embodiment, the method comprises capture of article or product reflectance spectra and the use of this spectrum to filter ambient light or directed light in the environment of a remote user. Other embodiments of methods include various techniques to capture product spectral information and color matching functions useful for color reproduction using colored light sources. Additional systems embodiments include devices exploiting multiprimary displays to render the product color in avoidance of metamerism.

Disclosed is a method and system for cost effective, convenient remote high fidelity color reproduction and matching that can be used to convey color to observers remote to the physical source of color. Such remote observers can include product consumers wishing to view a product color, for example. In a preferred embodiment, the method comprises capture of article or product reflectance spectra and the use of this spectrum to filter ambient light or directed light in the environment of a remote user. Other embodiments of methods include various techniques to capture product spectral information and color matching functions useful for color reproduction using colored light sources. Additional systems embodiments include devices exploiting multiprimary displays to render the product color in avoidance of metamerism.

A method of operating a video game system can include applying an optical filter in a field of view of a camera to filter out visible light and allow the camera to view non-visible light directed at a display screen positioned within the field of view of the camera. The method can also include processing the video output feed from the camera with a computer processor to identify a location of a non-visible light dot within the field of view of the camera that is projected onto the display screen by a light targeting peripheral unit. The method can also include calculating the location of the non-visible light dot within the field of view of the camera as a proportion of one or more dimensions of the field of view of the camera and translating the location of the non-visible light dot within the field of view of the camera onto a location on the display screen.

Devices, arrangements, and techniques are provided to improve the color saturation of displays such as OLED displays while avoiding or substantially reducing any increase in power consumption that typically would be associated with such increase in saturation. A three-subpixel per pixel red/green/blue (RGB) architecture is provided as well as a four sub-pixel approach which uses two red sub-pixels for each pixel (red/red/green/blue, or R1R2GB).

Devices, arrangements, and techniques are provided to improve the color saturation of displays such as OLED displays while avoiding or substantially reducing any increase in power consumption that typically would be associated with such increase in saturation. A three-subpixel per pixel red/green/blue (RGB) architecture is provided as well as a four sub-pixel approach which uses two red sub-pixels for each pixel (red/red/green/blue, or R1R2GB).

Provided is an optical device including a dielectric transparent substrate and a metallic layer having a thickness between about 20 nm and about 1000 nm disposed on the transparent substrate. The metallic layer comprises at least one localized group of cavities, each localized group being confined within a diameter smaller than about 5 um, and each localized group comprising at least two cavities, with a distance between two adjacent cavities in the localized group being between about 100 nm and about 2000 nm. Each cavity in the localized group is shaped as a through-hole in the metallic layer, the through hole having a polygonal cross-section having a polygon side length between 50 nm and 2000 nm.

Provided is an optical device including a dielectric transparent substrate and a metallic layer having a thickness between about 20 nm and about 1000 nm disposed on the transparent substrate. The metallic layer comprises at least one localized group of cavities, each localized group being confined within a diameter smaller than about 5 um, and each localized group comprising at least two cavities, with a distance between two adjacent cavities in the localized group being between about 100 nm and about 2000 nm. Each cavity in the localized group is shaped as a through-hole in the metallic layer, the through hole having a polygonal cross-section having a polygon side length between 50 nm and 2000 nm.

A mechanical chameleon through dynamic real-time plasmonic tuning, the external surface of which is covered by plasmonic cells is provided. Plasmonic cells, based on the combination of bimetallic nanodot arrays and electrochemical bias, use the electrochemical method elctrodepositing and stripping Ag shells on plasmonic Au nanodomes and then we achieve the reversible full color plasmonic cells/display. Plasmonic cells, under the control of circuits and sensors, make mechanical chameleon automatically change the color of its own when it's walking to the corresponding background color and always keeping the same color with the color background. This mechanical chameleon through dynamic real-time plasmonic tuning can capture and simulate the entire color-patterns of the environment and then drive the color-changing process in individual cells, fully merging the mechanical chameleon into the surroundings, which makes this technology is readily approachable.

A mechanical chameleon through dynamic real-time plasmonic tuning, the external surface of which is covered by plasmonic cells is provided. Plasmonic cells, based on the combination of bimetallic nanodot arrays and electrochemical bias, use the electrochemical method elctrodepositing and stripping Ag shells on plasmonic Au nanodomes and then we achieve the reversible full color plasmonic cells/display. Plasmonic cells, under the control of circuits and sensors, make mechanical chameleon automatically change the color of its own when it's walking to the corresponding background color and always keeping the same color with the color background. This mechanical chameleon through dynamic real-time plasmonic tuning can capture and simulate the entire color-patterns of the environment and then drive the color-changing process in individual cells, fully merging the mechanical chameleon into the surroundings, which makes this technology is readily approachable.