Abstract:
A light guide plate (11) is disclosed, including a plurality of light-adjusting panels (13) disposed on or over a light-emitting side of the light guide plate (11). The plurality of light-adjusting panels (13) are arranged in an array with a gap arranged between every two adjacent light-adjusting panels (13), and are configured to be controllable in a transparent state or in an opaque state to thereby realize a switch between a large divergence angle or a small divergence angle. Each light-adjusting panel (13) includes oppositely disposed first electrode (131A) and second electrode (131B), and a light adjusting layer (132) disposed there between. The light adjusting layer (132) is configured to be in an opaque state or in a transparent state depending on whether there is an electric field between the first electrode (131A) and the second electrode (131B). A backlight assembly (10) and a display apparatus containing the light guide plate (11), as well as a control method thereof, are also disclosed.
Abstract:
The present invention generally provides methods and systems for image display with a head- mounted device. In general terms, the present invention involves the use of a see-through tunable diffractive mirror, such as a see-through tunable holographic mirror or see-through tunable LCD array mirror. Such mirror is useful for providing augmented reality.
Abstract:
A frequency controlled electro-optical device includes a substrate having transparent conductive control sections patterned thereon to selectively control the optical state of an electro-optical layer. Each of the control sections are partially electrically isolated from each other by crack lines, which allows for electrical communication between adjacent/proximate control sections to occur. As such, an electrical control signal applied directly to one control section forms an electric field in that control section, and also induces an electrical field in adjacent control sections that are not in direct receipt of the control signal. Therefore, the number of electrical connections required for coupling to a driving circuit to operate the device is minimized, thereby allowing the device to be fabricated with reduced complexity and cost.
Abstract:
Certain example embodiments relate to a glazing assembly including a first glass substrate (202). A radiation shield (204) covering, directly or indirectly, at least a part of a peripheral edge area of the first glass substrate (202). A dual junction solid-state heat flux sensor includes a first junction (208) oriented in the assembly at a first location at which radiation from a radiation source is receivable through the first glass substrate (202); a second junction (210) oriented in the assembly at a second location that is blocked from the radiation source by the radiation shield (206); and circuitry (212) configured to generate a signal (214) based on a differential between transduced voltages respectively generated at the first and second junctions. A control module may be configured to receive the signal and selectively generate an action responsive thereto.