A liquid crystal device comprising a first substrate, a second substrate and a liquid crystal layer sandwiched between said first and second substrate; wherein an electrode structure is deposited on at least one of said first and second substrates, said electrode structure comprising: a first electrode layer; an insulating layer; a second electrode layer; wherein said electrode structure comprises holes extending through said second electrode layer and said insulating layer, such that said insulating layer is discontinuous, and wherein each hole is adapted to generate local fringe fields with azimuthal degenerate direction.

A cholesteric liquid crystal display device includes a first substrate, a solar cell, a shielding layer, a first electrode layer, a cholesteric liquid crystal layer, a second electrode layer and a second substrate stacked sequentially from bottom to top. The solar cell includes a metal wiring pattern layer. The shielding layer corresponds to the upper side of the metal wiring pattern layer, and is used to reduce the reflection of light from the metal circuit pattern layer. In this way, the cholesteric liquid crystal display device replaces the traditional black absorbing layer with the black material of the solar cell, which can not only absorb light, but also display the image with self-sustaining power. The cholesteric liquid crystal display device shields the arrangement of the metal wiring pattern layer through the shielding layer, which can ensure the image quality of the display panel.

The present invention relates to a liquid crystal device comprising a first portion, a second portion and a liquid crystal layer, wherein said first portion comprises a first substrate, said first substrate at least partially covered by a first electrode layer, wherein said second portion comprises a second substrate, said second substrate at least partially covered by a second electrode layer, wherein at least one of said first and second electrode layers comprises a plurality of electrodes that are electrically insulated of each other, wherein one of said first and second electrode layers is at least partially covered by said at least one photovoltaic semiconductor conversion layer and wherein said first portion is parallel to said second portion and at least one of them is transparent, wherein said liquid crystal layer is disposed between said first and second portions.

An autonomous light management system for a window includes an electrochromic film stack comprising an electrochromic layer on a first transparent electrode, an ion storage layer on a second transparent electrode, and an electrolyte sandwiched between the ion storage and electrochromic layers. The electrochromic film stack exhibits a transmissive state or an absorptive state depending on charging or discharging of the electrochromic layer. The light management system further comprises an array of power units disposed on a front surface of the electrochromic film stack, where each power unit comprises at least one solar microcell. Collectively, the solar microcells cover an area no greater than about 6% of a total area of the front surface. The array of power units is configured to control the charging and discharging of the electrochromic layer, thereby manipulating light transmission through the electrochromic film stack.

An electronic device includes a solar cell, a first light modulating layer, a transmittance-adjustable lens and a control circuit. At least a portion of the first light modulating layer is disposed on the solar cell. The control circuit is electrically connected to the solar cell and the transmittance-adjustable lens.

A insulated glazing unit is disclosed. The insulated glazing unit can include a first panel, a second panel, an electrochromic device coupled to the first panel, an electronics module coupled to the second panel, and a photovoltaic module coupled to the electronics module, the electrochromic device, and the first panel. In one embodiment, the first panel has a first length and the second panel has a second length, where the second length is less than the first length.

The present invention is directed to display devices comprising a plurality of microcells. The plurality of microcells comprises different types of microcells having different Fill Factors. The devices have a watermark being formed by halftone images from the different types of microcells. The watermark aims to protect against counterfeiting or to be used for decoration purposes.

Disclosed embodiments may include a device that may receive data corresponding to transaction card(s) associated with a user. The device may receive first photograph(s) of the user, the first photograph(s) associated with first respective date(s) and first respective time(s). The device may dynamically display a first most recent photograph. The device may receive a request from the user to complete a transaction, the request comprising a selection to utilize first data of the data corresponding to at least one transaction card of the transaction card(s). The device may retrieve the first data to enable the user to complete the transaction. The device may also receive a second photograph associated with a second date and a second time. The device may update the dynamic display with a second most recent photograph by comparing the first respective date(s) and first respective time(s) to the second date and second time.

According to one embodiment, a photovoltaic cell device includes an optical waveguide, an optical element, and a photovoltaic cell. The optical element includes a first liquid crystal layer which contains a cholesteric liquid crystal, reflects, of visible light, circularly polarized light of one of first circularly polarized light and second circularly polarized light rotating in an opposite direction of the first circularly polarized light toward the optical waveguide and the photovoltaic cell, and transmits the other circularly polarized light. The first liquid crystal layer reflects one of the first circularly polarized light and the second circularly polarized light of part of wavelength ranges.

The invention is based on a sun protection device, in particular sunglasses, with at least one optical sun protection filter comprising at least one liquid-crystal cell, and with at least one sensor unit, which is configured for capturing a solar irradiation. It is proposed that at least one sensor cover, which covers a sensor surface of the at least one sensor unit at least partly and which is, at least partly, at least substantially opaque with respect to an irradiation of a visible light spectrum.