Abstract: A flat emitter, in an embodiment, includes an emitter surface to emit electrons when a filament current is applied; a first end region including at least one first connection leg; and a second end region including at least one second connection leg. According to an embodiment, at least one connection leg is embodied as a band-type connection leg and is torsioned at an angle in a longitudinal axis. According to an embodiment, the first connection leg and the second connection leg are embodied as band-type connection legs and in each case are torsioned at a definable angle in a longitudinal axis. As a result, a simply constructed flat emitter in terms of design is achieved, with a longer service life and a high level of electron emission.

Abstract: A display device and display method thereof are provided in the field of image displaying technology. The display device includes: a controller, a display driver and a barrier driver. The controller is configured to send an image frame to the display driver and send a first instruction to the barrier driver. The display driver is configured to drive the display panel to display the image frame on a plurality of display areas which are parallel and distributed at intervals. The barrier driver is configured to turn on the electrodes of the first display barriers in the barrier panel according to the first instruction. The first display barriers are configured to block light when energized. Apart from the first display barriers, second display barriers are configured to allow light to pass through. The display device thus provides a visible range within a preset narrow viewing angle.

Abstract: An apparatus and a method for operating a sealed high intensity illumination lamp configured to receive a laser beam from a laser light source. The lamp includes a sealed chamber configured to contain an ionizable medium having a plasma sustaining region, and a plasma ignition region. A high intensity light egress window emits high intensity light from the chamber. A substantially flat ingress window located within a wall of the chamber admits the laser beam into the chamber. The lamp includes means for controlled increasing and decreasing a pressure level within the sealed chamber while the lamp is producing the high intensity illumination.

Abstract: According to one embodiment, a display device includes a switching liquid crystal unit, a controller, and a display. The switching liquid crystal unit includes first and second polarizing layers, first and second substrate units, and a liquid crystal layer. The first substrate unit includes a first substrate provided between the polarizing layers, inner electrodes provided between the first substrate and the second polarizing layer, an insulating layer provided between the first substrate and the inner electrodes, and outer electrodes provided between the first substrate and the insulating layer. The second substrate unit includes a second substrate provided between the first substrate unit and the second polarizing layer, and a counter electrode provided between the second substrate and the first substrate unit. The liquid crystal layer is provided between the substrate units. The controller controls potentials of the electrodes. The display emits light including a parallax image.

Abstract: A display apparatus includes: a display unit; and a liquid crystal variable barrier arranged so as to face the display unit, having plural strip-shaped first electrodes, a second electrode arranged so as to face the first electrodes and a liquid crystal layer arranged between the first electrodes and the second electrode, and separating an image displayed by the display unit into images respectively corresponding to plural viewpoints, wherein the first electrodes are arranged so that adjacent first electrodes partially overlap each other through an insulating layer, and plural first electrodes form an opening.

Abstract: An electronic display device includes a display unit including a plurality of scan lines along a first direction, a plurality of data lines along a second direction, and a plurality of pixels at intersection regions of the scan and data lines, and a barrier unit including a plurality of barrier regions extending along a direction of the data lines, the barrier unit including a plurality of first electrodes in each of the barrier regions, the first electrodes extending on a substrate along the first direction and being spaced apart from each other along the second direction, a plurality of second electrodes on the substrate at a different height than the first electrodes as determined with respect to the substrate, the first electrodes partly overlapping the second electrodes in a direction perpendicular to the substrate, and a dielectric layer on the substrate between the first and second electrodes.

Abstract: There is provided a cold cathode fluorescent lamp including a transparent tube including first and second light-emitting areas defined by partitioning an inner space of the transparent tube, a first terminal electrode positioned in the first light-emitting area and at a longitudinal end of the first light-emitting area located closer to an end of the tube, a second terminal electrode positioned in the second light-emitting area and at a longitudinal end of the second light-emitting area located closer to the other end of the tube, a first intermediate electrode positioned in the first light-emitting area and at the other longitudinal end of the first light-emitting area, a second intermediate electrode positioned in the second light-emitting area and at the other longitudinal end of the second light-emitting area, a first lead-in wire connected to the first terminal electrode through the longitudinal end of the first light-emitting area, a second lead-in wire connected to the second terminal electrode through

Abstract: An integrated circuit including a plurality of active devices each including a thermionic cathode or a cold cathode, an anode, and a grid element, all coplanarly disposed on an insulating substrate in a vacuum. A plurality of electrostatic lens elements also are exposed on the substrate to produce electric fields that control the trajectories of electrons emitted by the cathodes to prevent the electrons from migrating to and charging up exposed portions of the substrate and the inner surface of the vacuum envelope and thereby preventing such charge buildup from altering the electrical characteristics of the active devices.

Abstract: Conventional discharge tubes comprise electrodes within a separate containing vessel. The electrodes are joined to an external circuit by electrical conductors which pass through the vessel wall via an insulated side arm. Such a construction has disadvantages in that careful manufacture is required and it is also difficult to produce a desired distribution of the active medium in a laser and maintain a stable optimum temperature. In an attempt to reduce these problems the invention provides a discharge vessel which comprises electrical conductors and insulators arranged alternately so that a separate discharge vessel is not required. Since the discharge vessel is partially thermally conducting, temperature control is facilitated by its fast response to stabilizing controls, heat being supplied from an external source.

Abstract: An overvoltage protection circuit, in particular for protection against lightning. It comprises, in an ionizable atmosphere, three electrodes in the form of plates secured to an insulating support. One of the said electrodes is a discharge ignition electrode penetrating into a discharge gap between the two other electrodes, which are discharge electrodes. One of the two latter is connected to the ignition electrode through an electrical resistor. The assembly of the electrodes is located inside a case filled by the said atmosphere and inside which the electrodes and resistor are secured to a plate of insulating material which constitutes the said insulating support.