An electrically controlled smart window, which includes two transparent plates arranged oppositely, a power supply component and an in-between light-adjusting area. Hereinto the light-adjusting area is divided into a matrix of light-adjusting units by pixel wall(s), and every units are closely arranged in a grid shape. To the power supply component, an electrode is connected with the pixel wall, and another is localized on the center of light-adjusting unit and did with the transparent plate. Both surface-charged liquid crystal polymer particles and conductive packing fluid are filled into the medium between the two transparent plates. According to the present disclosure, cholesteric liquid crystal polymer microparticles with specific reflection band and surface charges are used as basic reflectors, thereby achieving the significant advantages of being easy to manufacture, low cost, and stable performance, without causing interference to electromagnetic signals.

An optical path control device and a display device including the same are discussed. The optical path control device can include a first substrate, a first electrode disposed on the first substrate, a second electrode disposed on the first substrate, a second electrode disposed under the second substrate, and a photoconversion layer disposed between the first electrode and the second electrode. The photoconversion layer can include a partition portion and a receiving portion that are alternately arranged, and the receiving portion can include suspended particles. The first electrode can include a first auxiliary electrode disposed on a first area of the first substrate and a second auxiliary electrode disposed on a second area of the first substrate.

A switchable optical element, a smart window having the same, and a method for switching between optical states of the element such that the optical element includes a pair of substrates disposed facing each other, and at least one cell arranged between the pair of substrates and filled with scattering particles. An electrode configuration is provided on the pair of substrates such that a first group of cell electrodes is interleaved with electrodes of a second group of cell electrodes on a face of a first substrate, and a third group of cell electrodes is interleaved with electrodes of a fourth group of cell electrodes on a face of a second substrate. Switching of the cell includes laterally transporting over at least a distance corresponding to two adjacent cell electrodes of one same cell electrode group and confining the scattering particles to a confinement region within the cell.

A high efficiency, long life, video rate, electrophoretic display comprises fluid containing sub-pixel structures that are periodic, and aligned with a color filter array. A fluid comprising of electrophoretically mobile particles is compartmentalized at the size scale of the individual filters (one per filter) such that the particles may be moved to either allow light to be returned through the same filter back towards the viewer by total internal reflection (TIR) or conventional reflection to create a light state or to be absorbed by the particles to create a dark state. High reflectance is achieved through the use of structures that avoid ITO layers in the light path and reflecting most light, by virtue of a dual control of light by TIR and transmission to a reflector. In one embodiment the structures are in the shape of truncated pyramids.

The present disclosure provides a projection device for a 3D printer, the projection device including a light source and a display panel for displaying an image to be printed, the image to be printed including a light transmission region and/or a light shielding region. The projection device is configured such that lights emitted from the light source pass through the light transmission region, and that the lights passing through the light transmission region from the light source are non-polarized lights. The present disclosure also provides a 3D printer.

The present disclosure is in the field of an electrophoretic device for switching between a transparent and non-transparent mode, comprising a fluid and particles, electrodes for moving said particles, and comprising various further elements, as well as uses thereof, in particular as a window blind.

The present disclosure is in the field of an electrophoretic device for switching between a transparent and non-transparent mode, comprising a fluid and particles, electrodes for moving said particles, and comprising various further elements, as well as uses thereof, in particular as a window blind.

An example electrophoretic display assembly includes: an outer substrate; an inner substrate; a first electrode and a second electrode disposed between the inner substrate and the outer substrate in a spaced apart relationship; and at least one substantially planar microstructure between the first and second electrodes, the microstructure containing an electrophoretic media. For example, the planar microstructures may be parallel to or perpendicular to the outer substrate. Also provided are example methods of fabricating electrophoretic display assemblies. A plurality of electrophoretic display assemblies may be combined to form an electrophoretic display, wherein each display assembly represents a pixel of the display device. The planar microstructures may increase the display quality, including the contrast or color capabilities of electrophoretic displays.

A light distribution control element includes a first transparent substrate, a second transparent substrate, first control electrodes and second control electrodes provided on the first transparent substrate, light-transmissive regions provided between the first transparent substrate and the second transparent substrate, and electrophoretic elements including electrophoretic particles charged to a specific polarity and having a light blocking property and optically transmissive dispersant. Each electrophoretic element is provided between two light-transmissive regions. At least a part of at least one of the first control electrodes and at least a part of at least one of the second control electrodes both overlap with each of the plurality of electrophoretic elements. Dispersion of the electrophoretic particles changes depending on potential difference between the first control electrodes and the second control electrodes to change a range of outgoing direction of light transmitted through the light distribution control element.

A light distribution control element includes a first transparent substrate, a second transparent substrate, first control electrodes and second control electrodes provided on the first transparent substrate, light-transmissive regions provided between the first transparent substrate and the second transparent substrate, and electrophoretic elements including electrophoretic particles charged to a specific polarity and having a light blocking property and optically transmissive dispersant. Each electrophoretic element is provided between two light-transmissive regions. At least a part of at least one of the first control electrodes and at least a part of at least one of the second control electrodes both overlap with each of the plurality of electrophoretic elements. Dispersion of the electrophoretic particles changes depending on potential difference between the first control electrodes and the second control electrodes to change a range of outgoing direction of light transmitted through the light distribution control element.