摘要:
Disclosed is a display device comprising an optical waveguide plate for introducing light radiated from a light source thereinto, in which the display gradation is controlled by changing the entering amount into an evanescent region existing around the back surface of the optical waveguide plate. In the present invention, an actuator element is provided, which makes bending displacement in a direction to make approach to the optical waveguide plate in accordance with voltage application to a pair of electrodes. A plate member of a displacement-transmitting section for determining the picture element area is provided on the actuator element. The entering amount of the plate member into the evanescent region is changed by controlling voltage application to the actuator element so that display gradation of the picture element corresponding to the actuator element is controlled. Accordingly, the time required to perform row scanning is drastically shortened, and it is possible to easily deal with high quality image display.
摘要:
A piezoelectric/electrostrictive device is provided, including a pair of mutually opposing thin plate sections and a fixation section for supporting the thin plate sections. A piezoelectric/electrostrictive element is arranged on each of the thin plate sections. The piezoelectric/electrostrictive device also includes movable sections defined by at least first end portions of the thin plate sections and a material which is different from that of the thin plate section.
摘要:
A piezoelectric/electrostrictive device is provided, including a pair of mutually opposing thin plate sections and a fixation section for supporting the thin plate sections. A piezoelectric/electrostrictive element is arranged on each of the thin plate sections. The piezoelectric/electrostrictive device also includes movable sections defined by at least first end portions of the thin plate sections and a material which is different from that of the thin plate section.
摘要:
Primary electrons impinge upon an emitter section of an electron emitter for causing emission of the secondary electrons. The secondary electrons are outputted from the electron emitter. The secondary electrons emitted from the emitter section are accelerated in an electric field applied to the emitter section for generating an electron beam. The electron emitter has the emitter section having a plate shape, a cathode electrode formed on a front surface of the emitter section, an anode electrode formed on a back surface of the emitter section. A drive voltage from a pulse generation source is applied between the cathode electrode and the anode electrode through a resistor. The anode electrode is connected to GND. A collector electrode is provided above the cathode electrode. A bias voltage is applied to the collector electrode.
摘要:
A light source has a rear glass substrate and a front glass substrate having a plate surface disposed in facing relation to a principal surface of the rear glass substrate. The plate surface of the front glass substrate is coated with a phosphor. A two-dimensional array of electron emitters is disposed on the principal surface of the rear glass substrate. A space defined between the rear glass substrate and the front glass substrate is filled with a gas. The gas may be an Hg (mercury) gas or an Xe (xenon) gas.
摘要:
A display device includes an illuminating device having an optical waveguide plate for introducing light thereinto, a drive assembly having a planar array of actuators disposed in facing relation to the optical waveguide plate, a displacement transmitter assembly disposed between the optical waveguide plate and the drive assembly, and a light scattering layer disposed on the displacement transmitter assembly. The actuators are selectively displaceable to bring the light scattering layer into and out of contact with the optical waveguide plate, for controlling light that leaks from the optical waveguide plate as emitted light. The display device also includes an optical modulator for modulating the emitted light from the illuminating device to display an image. The illuminating device has a light reflecting layer disposed on at least a portion of the displacement transmitter assembly that confronts the optical waveguide plate.
摘要:
A crosspiece precursor and a picture element assembly precursor are hardened at mutually different timings to form a crosspiece and a picture element assembly. For example, the crosspiece precursor is firstly hardened to form the crosspiece. After that, the picture element assembly precursor is hardened while allowing an upper end surface of the picture element assembly precursor to make pressed contact with an optical waveguide plate, by displacing an actuator element toward an actuator substrate. The picture element assembly, which is formed by hardening the picture element assembly precursor, reliably abuts against the optical waveguide plate when a display device is in a light emission state.
摘要:
A microdevice has an electron emitter including a memory for accumulating electric charges corresponding to an input voltage, for emitting electrons corresponding to the electric charges accumulated in said memory; and an amplifier connected to a power supply and including a collector electrode for capturing the electrons emitted from the electron emitter. The atmosphere between at least the electron emitter and the collector electrode is a vacuum. When the electrons emitted from the electron emitter are captured by the collector electrode of the amplifier, a collector current flows between the collector electrode and the electron emitter to amplify the input voltage.
摘要:
An electron emitter includes an emitter element made of a dielectric material, and an upper electrode and a lower electrode. A drive voltage is applied between the upper electrode and the lower electrode for emitting electrons from the emitter element. The upper electrode is formed on an upper surface of the emitter element, and the lower electrode is formed on a lower surface of the emitter element. The emitter element is exposed through a plurality of through regions of the upper electrode. Peripheral surfaces around the through regions facing the emitter element are spaced from the emitter element.
摘要:
A light emission device has an emitter made of a dielectric material, a cathode electrode disposed on a surface of the emitter, an anode electrode disposed on a reverse surface of the emitter, and a pulse generation source for applying a drive voltage between the cathode electrode and the anode electrode through a resistor. A fluorescent body is disposed on the surface of the emitter out of contact with the cathode, but as closely to the cathode electrode as possible.