A smart window including a solid polymer film which is opaque at an ambient temperature and transparent at an elevated temperature; a transparent heater to supply uniform heating to at least a part of the solid polymer film; and a power supply connected to the transparent heater.

Optically controllable windows and an associated window control system provide a building security platform. A window controller or other processing device can monitor for window breakage, cameras associated with windows can monitor for intruders, and transparent displays can provide alerts regarding detected activity within a building. A window control system can detect deviations from expected I/V characteristics of an optically controllable window during normal operation of the window (tint transitions, steady state conditions, etc.) and/or during application of a security-related perturbing event, and provide alerts upon their occurrence.

A laminated glass pane (1) comprises a first glass pane (10A), a second glass pane (10B) and an optically active film (20) laminated between the glass panes. The optically active film comprises a first conductive layer and a second conductive layer separated by at least one intermediate layer. The first and second conductive layers are contacted by a first (12A) and second (12B) connection wire, respectively. The optically active film is fully covered by both glass panes. Both the first and the second connection wires protrude out from the active film passing a first edge (14A) of the first glass pane in a same direction (18). The second glass pane protrudes outside the first edge of the first glass pane in the direction by an off-set distance (16). The off-set distance is at least equal to a smallest width of the first and second connection wires.

The present invention relates to an electrochromic solution and a use thereof, wherein the said solution comprises: a solvent; a thickening polymer agent having a molecular weight of at least 50,000 g/mol, preferably 200,000 g/mol, more preferably of at least 250,000 g/mol; at least an additive having a molecular weight between 300 and 50,000 g/mol, preferably between 320 and 20,000 g/mol; a redox chemical mixture in solution in said solvent said mixture being constituted of at least one electrochromic reducing compound and at least one electrochromic oxidizing compound, and which colors in the presence of an applied voltage and which bleaches to a colorless condition in the absence of an applied voltage. The invention further relates to a device comprising said solution.

A method for controlling an electrochromic glass and an electrochromic glass. The electrochromic glass includes a second sensor, a processor module and an electrochromic layer. The second sensor is configured to convert an optical signal to an electrical signal and send the electrical signal to the processor module (13). The second sensor is disposed on a side of the electrochromic layer facing away from the incidence of ambient light, and a light-sensing surface of the second sensor faces in a direction toward the incidence of the ambient light. The method includes: generating an adjustment instruction based on a second illuminance of ambient light passing through an electrochromic layer, where the adjustment instruction carries a control signal; and transmitting the adjustment instruction to the electrochromic layer so that transmittance of the electrochromic layer is adjusted according to the control signal, thus controlling transmittance of electrochromic glass.

Embodiments herein relate to methods and apparatus for preventing and mitigating the ingress of moisture into an interior region of an IGU. Various techniques are disclosed including, for example, the use of a strain relief structure around wires passing through a secondary seal, improved materials for coating the wires, and additional/improved layers for bonding the secondary seal to tape provided around a spacer.

A controllable privacy structure, such as a window or door, may include an electrically controllable optically active material connected to a driver. The driver can control the application and/or removal of electrical energy to the optically active material to transition from a scattering state in which visibility through the structure is inhibited to a transparent state in which visibility through the structure is comparatively clear. The driver may need to be located in relatively close physical proximity to the privacy structure the driver is intended to control. Devices, systems, and techniques are described for discretely positioning a driver relative to a privacy structure to be controlled.

Embodiments include modular wall systems, smart glass controllers and methods for operating such. In one scenario, a modular wall system is provided which includes a frame with a horizontal stringer. The modular wall system also includes first connectors positioned on the horizontal stringer, and a decorative smart glass pane which includes second connectors configured to attach to the first connectors on the horizontal stringer. The second connectors and the first connectors physically attach the decorative smart glass pane to the modular wall system. A power connector is also included. The power connector is configured to receive a direct current (DC) input voltage from a power source. A power inverter converts the DC input voltage to an alternating current (AC) voltage of less than a threshold maximum number of volts. Furthermore, a smart glass surface is included, which is in communication with an output of the inverter.

A transmittance-variable device, a driving method thereof, a method for improving a light shielding ratio therein, and a use thereof are disclosed herein. In some embodiments, a transmittance-variable device includes a transmittance-variable film capable of switching between a transparent mode and a black mode depending on application of a voltage signal; and a power source for applying a voltage signal having a frequency of 30 Hz or less to implement the black mode, wherein the transmittance-variable film comprises a first electrode substrate, an electrophoretic layer, and a second electrode substrate sequentially arranged. The transmittance-variable device can exhibit an excellent light shielding ratio in the black mode after driving with a voltage signal, and such a transmittance-variable device can be usefully used in a smart window.

The display device includes a liquid crystal panel including a polymer dispersed liquid crystal (PDLC) layer and a light source, the PDLC layer containing a polymer network and liquid crystal components dispersed in the polymer network, the light source being apart from the liquid crystal panel with an air layer, and configured to emit light toward the liquid crystal panel from an oblique direction, the end portion and the central portion of the PDLC layer each having, in the scattering state, an angle dependence which changes a transmittance of light to be emitted from a front surface based on an angle at which light is incident on a back surface of the PDLC layer, with the angle dependence of the end portion being different from the angle dependence of the central portion, the light source irradiating the end portion and the central portion with light at different angles.