Provided herein is a phase change material for use in a display device. Also provided is a display device comprising a phase change material; the use of a phase change material as an optical absorber in a display device; a method of fabricating a pixel; and a method of fabricating a display device. The phase change material is as described in more detail herein.

Provided is a thermo-optic optical switch including an input waveguide configured to receive an optical signal, an output waveguide configured to output the optical signal, branch waveguides branching from the input waveguide to be connected to the output waveguide, and heater electrodes disposed on the branch waveguides and configured to heat the branch waveguides, wherein the branch waveguides includes first and second phase shifters having first and second thermo-optic coefficients of opposite signs.

A device is disclosed that includes a comparator and a configurable heater. The comparator is configured to compare a transmission phase of a light transmitted in a photonic component with a reference phase to generate a phase difference. The configurable heater is disposed with respect to the photonic component and includes a plurality of heater segments, wherein a number of the heater segments in operation is trimmable based on the phase difference.

A device is disclosed that includes a comparator and a configurable heater. The comparator is configured to compare a transmission phase of a light transmitted in a photonic component with a reference phase to generate a phase difference. The configurable heater is disposed with respect to the photonic component and includes a plurality of heater segments, wherein a number of the heater segments in operation is trimmable based on the phase difference.

A method for displaying video images includes providing a plurality of cameras and an electronic control unit at the vehicle. One of the cameras functions as a master camera and other cameras function as slave cameras. During a forward driving maneuver of the vehicle, the forward viewing camera functions as the master camera and at least the driver-side sideward viewing and passenger-side sideward viewing cameras function as slave cameras, during a reversing maneuver of the vehicle, the rearward viewing camera functions as the master camera and at least the driver-side sideward viewing and passenger-side sideward viewing cameras function as slave cameras. Exposure, gain and white balance parameters of the master camera are used at least by the master camera and the slave cameras. A composite image is displayed, with adjacent image sections of the composite image appearing uniform in brightness and/or color at the borders of the image sections.

Thermochromic low-emissivity films can comprise a vanadium dioxide thin film or a thin film of vanadium dioxide nanoparticles incorporated into a polymer matrix, and a layer comprising a transparent conductive oxide to modify solar heat gain, solar reflectivity and thermal resistance of windows. The thermochromic low-emissivity films transition from infrared (IR) reflective when warm, to IR transparent when cool. This dynamic reflectivity is passive by nature, and requires no electronics or power source to shift. In addition, this dynamic transition can occur at any design temperature, and when the nanoparticles are dispersed, they remain transparent in the visible spectrum during both phases.

The invention relates to doping capsules which have a substance which displays a decreasing transparency with increasing temperature within a defined temperature range due to physicochemical interactions with the polymer matrix to be doped. Likewise, the invention relates to composite systems which have a polymer matrix doped with the doping capsules. The capsules according to the invention are used for sun protection or heat reflection.

The present disclosure discloses an optical film, a backlight module and a liquid crystal display device and relates to the liquid crystal display field. It solves the problem that the edge of an optical film in the prior art can be easily warped. An optical film is provided and comprises an optical film body, and at a position of the optical film body that is close to a heat source, a thermal expansion stretchable structure is provided and is capable of releasing a thermal expansion amount of the optical film body.

Embodiments of the present disclosure describe a method of energy storage and release based on crystallization-dissolution comprising heating a solute-solvent system to decrease a solubility of a solute in the solvent and induce crystal formation; cooling a solute-solvent system to increase the solubility of the solute in the solvent and induce crystal dissolution; wherein energy is stored in the crystal upon heating and released from the crystal upon cooling.

A smart optical material characterized in that when the material is at ambient temperature (30 C.), it is opaque to at least one color light in the visible light spectrum and when the material is at an elevated temperature of at least 80 C., it is substantially transparent to the at least one color light. The smart optical material is also characterized as having before thermal aging an elongation-at-break of at least 15% and after thermal aging in air at 200 C. for seven days an elongation-at-break that is unchanged or is at least 12% and has decreased by from >0% to less than 50%. Also included are related formulations, methods, uses, articles and devices.