Abstract: A system for selectively revealing indicia to an observer comprises a transitioning window having a receiving surface and a viewing surface. The receiving surface is positioned in optical communication with an indicia holder that is configured to removably retain indicia, such as information content. During operation, the transitioning window transitions from a substantially opaque state to a substantially transparent state so as to reveal or otherwise display the indicia to an observer via the viewing surface.

Abstract: A stereoscopic display device is disclosed, and it includes a substrate, plural rows of pixel regions, and a patterned retarder film. Each pixel region includes plural pixel units. Each pixel unit includes a first electrode and a second electrode. The pixel regions are divided into plural groups. Each group includes N rows of the pixel regions. The first electrode of each pixel unit in first N/2 rows of the pixel regions is in a form of one of a “” shape and a “” shape, and the first electrode of each pixel unit in last N/2 rows of the pixel regions is in a form of the other one of the “” shape and the “” shape. The present invention can solve the problems of the color shift phenomenon and the inconsistent brightness.

Abstract: A light guide plate is described that includes a plurality of reflection areas and a plurality of scattering areas arranged to provide light to a display panel to display images with parallax. A display apparatus is described that can include a light guide plate comprising a plurality of scattering areas and a plurality of reflection areas arranged to form a parallax barrier, and a display panel that displays an image based on light received from the light guide plate. A display apparatus is described that can include a light guide plate comprising a plurality of scattering areas and a plurality of reflection areas arranged in an alternating pattern, and a display panel that displays an image based on light received from the light guide plate. An apparatus is described that includes a backlight positioned on a first side of the light guide plate.

Abstract: A gas laser device having a function for properly controlling the gas pressure of a laser oscillator after an alarm is generated. A controller of the laser device has an alarm monitoring part which monitors as to whether an alarm is generated in the oscillator, by which discharge in the oscillator should be stopped; an alarm judging part which discriminates a type of the alarm generated in the oscillator; a gas pressure controlling part which controls a pressure of laser gas within a discharge tube of the oscillator; and a power supply controlling part which controls a power supply of the oscillator. The gas pressure controlling part controls the pressure of the laser gas within the discharge tube to an appropriate value, after the alarm is generated, based on one of a plurality of control patterns predetermined corresponding to the respective types of the alarm.

Abstract: The present invention provides a transflective blue-phase liquid crystal display panel comprising a first substrate, a second substrate, and a liquid crystal layer, wherein the first substrate and the second substrate comprise a plurality of subpixels, and each subpixel comprises a reflective region and a transmissive region, the liquid crystal cell gap of the reflective region is equal to that of the transmissive region, a plurality of first common electrodes and first pixel electrodes that are alternately arranged at equal intervals are set on the part of the second substrate; a second common electrode is set on the part of the first substrate, a second pixel electrode having a via hole at its center is set on the part of the second substrate. In the invention, an alignment layer can be omitted; the display visual angle can be enlarged by designing an electrode structure, and the contrast ratio can be improved, thereby a single cell-gap structure can be attained.

Abstract: A semiconductor laser includes a semiconductor substrate, an active region provided over the semiconductor substrate and having an active layer and a first diffraction grating, and a guiding region provided over the semiconductor substrate and having a guiding layer continuously extending from the active layer in an optical axis direction and a second diffraction grating continuously extending from the first diffraction grating in the optical axis direction. A grating period of the second diffraction grating is uniform, the first diffraction grating has a first part in which a grating period becomes uneven, and a grating formation density of the first diffraction grating is smaller than the grating formation density of the second diffraction grating.

Abstract: Optical and/or electronic device comprising a suspended, germanium-based membrane (20) and comprising an active zone (21) placed under tension by tensioning arms (23), said device being characterized in that it comprises at least one tensioning arm (23) comprising nonparallel lateral sides (32), the width of which increases with distance from the active zone (21).

Abstract: The invention relates to a packaging structure for a laser diode, comprising an electrically insulated, heat-conducting board having an electronic circuit thereon; a laser diode chip mounted on the electronic circuit of the electrically insulated, heat-conducting board and having an anode and a cathode, respectively connected to an external soldering pad for external electrical connections; and a heat-conducting base installed on a surface of the electrically insulated, heat-conducting board to conduct the heat generated by the laser diode chip to the heat-conducting base through the electrically insulated, heat-conducting board, wherein the laser diode chip emits the light from an edge of the electrically insulated, heat-conducting board and the area of a faying plane between the electrically insulated, heat-conducting board and the heat-conducting base is adjusted depending on the power requirements of the laser diode, and the area of the faying plane is from 6 to 5,000 mm2.

Abstract: A laser system including a pressure adjusting part adjusting the laser gas pressure in the laser gas container, a pressure control unit controlling the pressure adjusting part so that before startup of the laser oscillator, the laser gas pressure becomes a first gas pressure lower than atmospheric pressure and so that at a preparatory stage after startup of the laser oscillator and before radiation of the laser light, the laser gas pressure becomes a second gas pressure capable of oscillating laser light, a laser control unit controlling the laser oscillator so that the laser oscillator executes an initial operation, a laser detector detecting the laser light output by the initial operation, and a hermetic seal estimating part estimating an extent of hermetic seal of the laser gas container based on a detection value obtained by the laser detector.

Abstract: A semiconductor device includes a substrate supporting a plurality of layers that include at least one modulation doped quantum well (QW) structure offset from a quantum dot in quantum well (QD-in-QW) structure. The modulation doped QW structure includes a charge sheet spaced from at least one QW by a spacer layer. The QD-in-QW structure has QDs embedded in one or more QWs. The QD-in-QW structure can include at least one template/emission substructure pair separated by a barrier layer, the template substructure having smaller size QDs than the emission substructure. A plurality of QD-in-QW structures can be provided to support the processing (emission, absorption, amplification) of electromagnetic radiation of different characteristic wavelengths (such as optical wavelengths in range from 1300 nm to 1550 nm).

Abstract: Provided are a complex spatial light modulator and a three-dimensional image display device including the same. The complex spatial light modulator includes: a spatial light modulator for modulating a phase of light; a prism array disposed next to the spatial light modulator; and a polarization-independent diffractive element for diffracting light that has passed through the prism array. The complex spatial light modulator may modulate both phase and amplitude of light.

Abstract: The disclosure relates to the removal of hydrogen fluoride (HF) from an excimer laser either in operation or in standby using a metal halide salt reactor. Removal of HF is desirable because the contaminant not only absorbs laser emission, thus reducing laser power, but it is also chemically reactive, and degrades the lifetime of internal laser components. The metal halide salt reactor may be provided either in the laser vessel or in an external conduit loop.

Abstract: An external cavity semiconductor laser light source comprises includes a semiconductor gain device operable to provide light amplification; a wavelength selection element including a diffraction grating; and light re-directors. The gain device, light re-directors and grating are arranged so that an optical resonator is established for light portions emitted by the gain device and diffracted by the diffraction grating. The resonator is an external cavity laser resonator. The light source is capable of varying an angle of incidence of radiation circulating in the resonator onto wavelength selection element to select a resonator radiation wavelength dependent on the angle of incidence.

Abstract: A semiconductor laser diode (LD) with a shortened cavity length is disclosed. The LD provides a rectangular substrate and, on the substrate, a cavity structure including a mesa with facets forming the laser cavity. The facets of the mesa are stood back from the side of the substrate. Pads to provide electrical signals are arranged in both sides of the mesa close to the sides of the substrate.

Abstract: Provided are a display device and a manufacturing method thereof capable of preventing deformation of a microcavity and stably injecting an aligning agent and a liquid crystal. The display device includes a substrate including a plurality of pixel areas which includes a plurality of pixel columns and is disposed in a matrix form; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor and formed in the pixel area; a roof layer formed on the pixel electrode so as to be spaced apart from the pixel electrode with a microcavity therebetween; a first injection hole formed in the roof layer exposing the microcavity at a side edge of the pixel column; a liquid crystal layer filling the microcavity; and an encapsulation layer formed on the roof layer so as to cover the first injection hole to seal the microcavity.

Abstract: An optical element module includes a casing having a bottom plate, a temperature-adjusting unit being mounted on the bottom plate in the casing and having at least a lower layer portion and an upper layer portion positioned above the lower layer portion, a support member mounted on the temperature-adjusting unit in the casing, and a semiconductor laser element being mounted on the support member and outputting a laser light to a forward side. The upper layer portion of the temperature-adjusting unit projects at a backward side of the semiconductor laser element relative to the lower layer portion.

Abstract: An array substrate, a liquid crystal display panel and a liquid crystal display device. The array substrate comprises data lines, gate lines and a pixel array provided on a base substrate. Each data line is connected with at least one type of sub-pixels in the pixel array, and sub-pixels of same type connected with a same data line have same polarity, and the sub-pixels connected with the same data line are connected with different gate lines, respectively.

Abstract: An LED assembly includes a supporting layer; LED chips arranged on a first surface of the supporting layer and spaced apart from each other; a coating layer formed over the LED chips and including a fluorescent substance, wherein the coating layer changes light emitted from the LED chips into a linear light source; and an electrode pattern layer formed on a second surface of the supporting layer and in selectively removed regions of the supporting layer and contacting the LED chips.

Abstract: After forming a first trench extending through a top semiconductor layer and a buried insulator layer and into a handle substrate of a semiconductor-on-insulator (SOI) substrate, a dielectric waveguide material stack including a lower dielectric cladding layer, a core layer and an upper dielectric cladding layer is formed within the first trench. Next, at least one lateral bipolar junction transistor (BJT), which can be a PNP BJT, an NPN BJT or a pair of complementary PNP BJT and NPN BJT, is formed in a remaining portion of the top semiconductor layer. After forming a second trench extending through the dielectric waveguide material stack to re-expose a portion of a bottom surface of the first trench, a laser diode is formed in the second trench.

Abstract: A liquid crystal display device includes a liquid crystal composition, a thin film transistor substrate as an insulation substrate on which a thin film transistor for controlling the orientation of the liquid crystal composition is provided, and a color filter substrate which seals the liquid crystal composition between itself and the thin film transistor substrate and controls a wavelength region of the transmitted light. The thin film transistor substrate includes a projection part extending from the thin film transistor substrate to the color filter substrate side, and a wall-like electrode on a wall surface of the projection part, which is one electrode for controlling the orientation of the liquid crystal composition. An insulation film and an orientation film are sequentially laminated on the wall-like electrode continuously from a surface parallel to a substrate surface.