The embodiments herein relate to methods for controlling an optical transition and the ending tint state of an optically switchable device, and optically switchable devices configured to perform such methods. In various embodiments, non-optical (e.g., electrical) feedback is used to help control an optical transition. The feedback may be used for a number of different purposes. In many implementations, the feedback is used to control an ongoing optical transition. In some embodiments a transfer function is used calibrate optical drive parameters to control the tinting state of optically switching devices.

The embodiments herein relate to methods for controlling an optical transition and the ending tint state of an optically switchable device, and optically switchable devices configured to perform such methods. In various embodiments, non-optical (e.g., electrical) feedback is used to help control an optical transition. The feedback may be used for a number of different purposes. In many implementations, the feedback is used to control an ongoing optical transition. In some embodiments a transfer function is used calibrate optical drive parameters to control the tinting state of optically switching devices.

An information handling system peripheral keyboard sized to rest on an information handling display to accept key inputs has a bottom surface with a selectively opaque layer that transitions between transparent and opaque states based upon a usage scenario. For instance, the keyboard has a transparent state when placed on the display to allow light to pass through the keyboard and illuminate the keys. When removed from the display, an opaque state hides keyboard internals so as not to detract from the keyboard appearance. In one embodiment, the selectively opaque layer is an electronic ink that presents a product brand on the keyboard bottom surface when in the opaque state.

An information handling system peripheral keyboard sized to rest on an information handling display to accept key inputs has a bottom surface with a selectively opaque layer that transitions between transparent and opaque states based upon a usage scenario. For instance, the keyboard has a transparent state when placed on the display to allow light to pass through the keyboard and illuminate the keys. When removed from the display, an opaque state hides keyboard internals so as not to detract from the keyboard appearance. In one embodiment, the selectively opaque layer is an electronic ink that presents a product brand on the keyboard bottom surface when in the opaque state.

An electro-optic device comprises in order, an electrically-conductive light-transmissive layer, an electro-optic material layer, an adhesive layer, and a backplane substrate comprising a plurality of pixel electrodes configured to apply an electrical potential between the electrically-conductive light-transmissive layer and the pixel electrodes. An activation region, comprising an identification marker, is located in a layer of the electro-optic device and it emits radiation of a characteristic wavelength upon activation by a stimulus, enabling the identification of the manufacturing source and the manufacturing lot of the electro-optic device and its components. The technology is also relevant for a front plane laminate and a double release sheet, which are useful components for the manufacture of electro-optic devices.

Methods and embodiments are provided for the coordinated translation, rotation, and deformation of swarms of nanoparticles by means of forced diffusion by dielectrophoresis in order to affect the scattering of light and the synthesis of the central quantity to all optics: refractive index. Applications include electronic beam steering of light, concentration of sunlight, augmented reality displays, and medical diagnostics, and many others.

A device having a functional element having electrically controllable optical properties, includes an electrical energy source having an output voltage U, a functional element having electrically controllable optical properties, and at least two supply lines, by means of which the electrical energy source and the functional element are connected. The output voltage U has an alternating voltage having a frequency f from 40 Hz to 210 Hz, a maximum amplitude U.sub.max from 24 V to 100 V, and a slope in the range of the output voltage U between 80% U.sub.max and 80% U.sub.max from 0.05*U.sub.max/100 s to 0.1*U.sub.max/100 s and in the range of the output voltage U between 80% U.sub.max and 80% U.sub.max from 0.05*U.sub.max/100 s to 0.1*U.sub.max/100 s.

A device having a functional element having electrically controllable optical properties, includes an electrical energy source having an output voltage U, a functional element having electrically controllable optical properties, and at least two supply lines, by means of which the electrical energy source and the functional element are connected. The output voltage U has an alternating voltage having a frequency f from 40 Hz to 210 Hz, a maximum amplitude U.sub.max from 24 V to 100 V, and a slope in the range of the output voltage U between 80% U.sub.max and 80% U.sub.max from 0.05*U.sub.max/100 s to 0.1*U.sub.max/100 s and in the range of the output voltage U between 80% U.sub.max and 80% U.sub.max from 0.05*U.sub.max/100 s to 0.1*U.sub.max/100 s.

An optical switch includes a plurality of micro-grooves, a micro-fluid disposed in each micro-groove of the plurality of micro-grooves, and a driving electrode disposed corresponding to the micro-fluid in each micro-groove. The driving electrode is configured to provide a voltage to a corresponding micro-fluid to control light transmittance of a region where the micro-fluid is located.

An optical switch includes a plurality of micro-grooves, a micro-fluid disposed in each micro-groove of the plurality of micro-grooves, and a driving electrode disposed corresponding to the micro-fluid in each micro-groove. The driving electrode is configured to provide a voltage to a corresponding micro-fluid to control light transmittance of a region where the micro-fluid is located.