A temperature control system and a driving method thereof, and a liquid crystal apparatus are provided. In the temperature control system, an input voltage adjustment circuit is respectively coupled to a control signal output end of a control circuit, a power signal output end, and an input end of a signal amplification circuit, and is configured to control the signal strength of a basic electrical signal transmitted to the input end of the signal amplification circuit under the control of a control signal output from the control signal output end; the signal amplification circuit is configured to output a corresponding target electrical signal to a heating element according to the basic electrical signal, and the heating element is configured to adjust the heating temperature according to the target electrical signal; a temperature sensing circuit is respectively coupled to the heating element and the control circuit, and is configured to convert a sensed sensing signal into a feedback signal and transmit the feedback signal to the control circuit; and the control circuit is configured to control the control signal output from the control signal output end according to the received feedback signal.

The disclosed electronic shutter may include (1) an optical structure including a medium through which light from an environment passes to a lens of a camera for capturing an image of the environment; and (2) a controlling circuit that (a) detects a first condition of a signal, where the first condition indicates an activation of the camera, (b) controls, in response, to the first condition, the optical structure such that the medium attains a transparent optical state, (c) detects a second condition of the signal, where the second condition indicates a deactivation of the camera, and (d) controls, in response to the second condition, the optical structure such that the medium attains a non-transparent optical state in a manner that prevents visual detection of the lens from the environment. Various other methods and systems are also disclosed.

A viewing angle limiting device, including a polymer substrate and a plurality of dye molecules, is provided. The dye molecules are dispersedly arranged in the polymer substrate. The dye molecules have a first absorption coefficient in a thickness direction of the polymer substrate. The dye molecules have a second absorption coefficient in a direction perpendicular to the thickness direction. A ratio of the first absorption coefficient to the second absorption coefficient is between 10 and 1000. A manufacturing method of the viewing angle limiting device and a display device including the viewing angle limiting device are also provided. The display device, the viewing angle limiting device, and the manufacturing method thereof provided by the invention have a large viewing angle filtering effect and have higher light transmittance in a viewing angle direction.

An optical film includes a polarizer. The polarizer includes a base layer, and a material of the base layer is obtained by dyeing a base material with a dye. The base material includes a polyvinyl alcohol material, and the dye is selected from blue dichroism organic dyes.

An optical element which can be utilized in various versions and implementations of switchable light filters having, in addition, polarization filters and/or other means for varying the polarization characteristics of light, for example, liquid crystal layers. A combination of switchable light filter and imaging display device makes possible a private viewing effect that can be switched on and off. The optical element comprises a first layer or a first layer and a plurality of further layers, each layer including a material with a plurality of light-absorbing transition dipole moments. At least in a first state, each transition dipole moment is oriented, with a tolerance of 10° at the maximum, parallel to a selectable preferential direction or fluctuates around it so that light which is incident in the optical element is transmitted or at least partially absorbed depending on its incident direction.

In polarization-based optical systems, preserving a state-of-polarization (SOP) over a prescribed range of incidence angles and wavelengths may be necessary. Optical materials with local normal tilted with respect to an incident ray can introduce an undesirable polarization nonuniformity that can be substantially corrected using a compensator as disclosed herein. The compensator may include a uniaxial retarder and a z-partial polarizer (ZPP). The ZPP may include a uniaxial material with an absorption axis normal to the substrate.

The present application relates to an optical device. The present application provides an optical device capable of varying transmittance, and such an optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.

A dimming glass includes: a first base substrate and a second base substrate that are oppositely disposed, a dye liquid crystal layer disposed between the first base substrate and the second base substrate, and at least one temperature sensor disposed between the first base substrate and the second base substrate. The at least one temperature sensor is configured to detect a temperature of the dye liquid crystal layer.

A display device includes: a substrate; a color filter layer disposed below the substrate; a color control layer disposed below the color filter layer; and an optical auxiliary layer disposed between the substrate and the color filter layer and having a base portion and a plurality of recess portions, the plurality of recess portion defined in the base portion and recessed in a direction toward the substrate, wherein an average refractive index of the optical auxiliary layer is greater than or equal to an average refractive index of the substrate and is less than or equal to an average refractive index of the color filter layer.

The present disclosure provides a light adjusting glass, including a light transmitting substrate and a light adjusting functional layer, where the light transmitting substrate includes a first substrate and a second substrate which are disposed opposite to each other, the light adjusting functional layer is disposed between the first substrate and the second substrate, and the light adjusting functional layer includes at least two liquid crystal cells; the liquid crystal cells are disposed in a laminated mode, and each of the liquid crystal cells has a liquid crystal layer including dye liquid crystal.