Abstract: A curved display device including a first substrate, a thin film transistor (TFT) disposed on the first substrate, a pixel electrode connected to the TFT, a second substrate overlapping the first substrate, a liquid crystal layer disposed between the first and the second substrates, and a common electrode disposed between the second substrate and the liquid crystal layer, in which the pixel electrode includes a cross-shaped stem portion having a horizontal stem portion, a vertical stem portion, and a plurality of fine branches extending from the cross-shaped stem portion, at least one of the fine branches includes a first portion and a second portion having a width greater than that of the first portion, and an extending line from a boundary between the first portion and the second portion is sloped at an angle in a range of ?10 degrees to +10 degrees with respect to the vertical stem portion.

Abstract: A liquid crystal display apparatus includes a liquid crystal display module and a top polarizer. The liquid crystal display module has a display module upper surface. The top polarizer is disposed on the display module upper surface, and has a reinforced surface. The boundary of the top polarizer is extended from boundary of the display module upper surface. The top polarizer includes a main body and a reinforced film. The reinforced film is formed on the surface of the main body, which is disposed away from the liquid crystal display module, in which the reinforced surface is the surface of the reinforced film, which is disposed away from the liquid crystal display module.

Abstract: An array substrate and a display device including the array substrate are disclosed. The array substrate includes: gate lines and data lines, gate lines and data lines defining sub-pixels arranged in an array, each of the sub-pixels being provided with a pixel electrode; and a common electrode located over the sub-pixels and including first sub-common electrodes and second sub-common electrodes in one-to-one correspondence with the sub-pixels. Each second sub-common electrode is connected between two adjacent first sub-common electrodes, each of the first sub-common electrodes is provided with first slits therein, the second sub-common electrode distributed in an extension direction of the first slits is provided with second slits therein, and there is an angle between an extension direction of the second slits and the extension direction of the first slits.

Abstract: A nitride semiconductor laser element includes an electron barrier layer between a p-side light guide layer and a p-type clad layer. The electron barrier layer has a bandgap energy larger than that of the p-type clad layer. The p-side light guide layer is made of AlxGa1?xN containing no Indium, where 0?x<1. A film thickness dn of the n-side light guide layer and a film thickness dp of the p-side light guide layer satisfy relationships dp?0.25 ?m and dn?dp.

Abstract: A laser device for generating an optical wave including at least two frequencies, such laser device including: a first element including a gain region, a second mirror, distinct from the first element, and arranged so as to form with a first mirror an optical cavity including the gain region; means for pumping the gain region so as to generate the optical wave; means for shaping the light intensity of the optical wave arranged for selecting at least two transverse modes of the optical wave; and means for shaping the longitudinal and/or transversal phase profile of the optical wave and arranged for adjusting at least two transverse modes of the optical wave.

Abstract: Laser diode drivers include switching power supplies situated proximate one or more laser diode arrays so as to provide laser diode drive currents at frequencies of 200 kHz or more. The switching power supplies are generally buck/boost supplies that can provide well regulated outputs even when regulating remote power received from a power supply via a cables having inductances in the hundreds of nH. Multiple laser diode arrays can be driven with independently selectable powers. A drive current for a particular laser array can be controlled so as to reduce voltage drop at voltage control elements such as FETs, leading to increased efficiency, increased product life and decreased sense element failure.

Abstract: An optical module includes: a wiring substrate that has a wiring pattern including a connecting portion and is arranged on an optical subassembly so as to be electrically connected thereto; and a flexible insulating layer formed between the optical subassembly and the wiring substrate. The optical subassembly includes: a conductive stem that has a surface opposed to the wiring substrate, the conductive stem being shaped so that the surface has a through hole opened therein and being connected to a reference potential; and a signal lead for transmitting a signal, the signal lead passing through the through hole while being electrically insulated from the conductive stem. The signal lead passes through the flexible insulating layer to be joined to the connecting portion. The flexible insulating layer is in contact with the connecting portion, the signal lead, and the surface of the conductive stem.

Abstract: The embodiments of the present invention provide a backlight module, a liquid crystal display device and a display; laser is used as the light source of the backlight module, improving the utilization of light and realizing high color gamut display. The backlight module comprises a laser light source and several light guide devices provided on a light output side of the laser light source; the several light guide devices are arranged in a first direction; each light guide device comprises several light guide elements and transflective films arranged alternately in a second direction; the transflective films are configured to reflect laser from the laser light source into a third direction; the third direction is perpendicular to the first direction and the second direction.

Abstract: A display device includes a plurality of signal lines that are so juxtaposed as to be extended along one direction, a plurality of common drive electrodes that are so juxtaposed as to be extended along the signal lines, and a plurality of display elements that are each connected to a respective one of the plurality of signal lines and are each connected also to the common drive electrode that makes a pair with the connected signal line. Scan driving of the plurality of display elements is performed in the direction of the signal lines.

Abstract: A method for reducing a moire fringe includes calculating a moire fringe width for each of different angles between a microlens array and pixels of a display screen. The method includes determining, to be a final inclination angle between the microlens array and the pixels of the display screen, one of the different inclination angles that corresponds to a minimum width among the calculated moire fringe widths.

Abstract: A wavelength-tunable vertical-cavity surface-emitting laser (VCSEL) with the use of microelectromechanical system (MEMS) technology is provided as a swept source for Optical Coherence Tomography (OCT). The wavelength-tunable VCSEL comprises a bottom mirror of the VCSEL, an active region, and a MEMS tunable upper mirror movable by electrostatic deflections. The bottom mirror comprising a GaAs based distributed Bragg reflector (DBR) stack, and the active region comprising multiple stacks of GaAs based quantum dot (QD) layers, are epitaxially grown on a GaAs substrate. The MEMS tunable upper mirror includes a membrane part supported by suspension beams, and an upper mirror comprising a dielectric DBR stack. The MEMS tunable quantum dots VCSEL can cover an operating wavelength range of more than 100 nm, preferably with a center wavelength between 250 and 1950 nm, and the sweeping rate can be from a few kHz to hundreds of kHz, and up to a few MHz.

Abstract: A solar-pumped laser device includes: a light-guiding plate configured such that a fluorescence substance absorbing solar light and emitting fluorescence including a predetermined wavelength is dispersed in the light-guiding plate so as to bring the fluorescence to exit a predetermined surface; and an optical fiber disposed close to the predetermined surface, the optical fiber including: a core part in which a medium excitable by the fluorescence so as to emit a laser is dispersed; and a clad part that is formed by a material through which the fluorescence passes, is disposed around the core part, and has a smaller refractive index than a refractive index of the core part, wherein a light emitted by the medium is totally reflected by one end surface of the optical fiber, and is brought to pass through the other end surface of the optical fiber.

Abstract: A display device is provided with a pixel and a dummy pixel including a gate line and a signal line. The dummy pixel includes the gate line and a dummy semiconductor layer crossing the gate line through an insulating layer. The dummy semiconductor layer is electrically separated from the dummy semiconductor layer of the dummy pixel adjacent in the Y direction dummy pixel. The dummy pixel further includes a dummy signal line extending in the Y direction. The dummy signal line is connected to the dummy semiconductor layer through a plurality of contact holes. The contact holes are arranged with the gate line interposed between them in plan view.

Abstract: A system and method for providing laser diodes with broad spectrum is described. GaN-based laser diodes with broad or multi-peaked spectral output operating are obtained in various configurations by having a single laser diode device generating multiple-peak spectral outputs, operate in superluminescene mode, or by use of an RF source and/or a feedback signal. In some other embodiments, multi-peak outputs are achieved by having multiple laser devices output different lasers at different wavelengths.

Abstract: A pixel structure having a light transmitting region and a light shielding region usable in an liquid crystal display includes a first substrate having a counter electrode, a second substrate having a plurality of signal lines, a pixel electrode, a thin-film transistor (TFT) and a bottom black matrix, a liquid crystal layer having liquid crystal molecules and formed between the first substrate and the second substrate, and a holding member formed in the light shielding region and attached to the first substrate and the second substrate.

Abstract: An automatic-darkening filter 10, 10? that comprises a first polarizer 14, a second polarizer 18, a first liquid-crystal cell 16, and a sensor 64. The first polarizer 14 has a first polarization direction, and the second polarizer 18 has a second polarization direction. The liquid crystal cell 16 is disposed between the first and second polarizers 14, 18 and contains first and second optically-transparent, flexible, glass layers 40 and 42 with the liquid crystal layer 48 being located between these layers. The sensor 64 detects incident light and causes a signal to be sent, which causes molecular rotation within the liquid crystal layer. The inventive automatic-darkening filter is beneficial in that overall product weight can be reduced and the view field can be increased.

Abstract: Emitter width of an LD is set greater than a diameter, of a core, in an entrance end surface of an optical fiber. An optical system provided between the LD and the optical fiber causes a diameter, of laser beam, in the entrance end surface of the optical fiber to become smaller than the diameter, of the core, in the entrance end surface of the optical fiber. The LD is configured so that a beam parameter product of the laser beam emitted from the LD shows a local minimal value which changes in accordance with the emitter width of the LD, and which is equal to or smaller than a beam parameter product of the optical fiber. The emitter width of the LD is set so that the beam parameter product of the laser beam emitted from the LD is equal to or smaller than that of the optical fiber.

Abstract: A display device includes a gate line and a data line crossing the gate line. The display device further includes a first switching element and a second switching element each connected to the gate line and the data line. The display device further includes a first sub-pixel electrode and a second sub-pixel electrode connected to the first switching element and the second switching element, respectively. The display device further includes a reference voltage line for transmitting a reference voltage, a first portion of the first reference voltage line overlapping a first edge of the first sub-pixel electrode, a second portion of the first reference voltage line overlapping a second edge of the first sub-pixel electrode opposite the first edge of the first sub-pixel electrode. The display device further includes a third switching element connected to the gate line, the first sub-pixel electrode, and the reference voltage line.

Abstract: Methods, systems, and devices are disclosed for divided-pulse lasers. In one aspect, a pulsed laser is provided to include a laser cavity including an optical amplifier and a plurality of optical dividing elements and configured to direct a laser pulse of linearly polarized light into the plurality of optical dividing elements to divide the light of the laser pulse into a sequence of divided pulses each having a pulse energy being a portion of the energy of the laser pulse before entry of the optical dividing elements, to subsequently direct the divided pulses into the optical amplifier to produce amplified divided pulses. The laser cavity is configured to direct the amplified divided pulses back into the plurality of optical dividing elements for a second time in an opposite direction to recombine the amplified divided pulses into a single laser pulse with greater pulse energy as an output pulse of the laser cavity.

Abstract: An optoelectronic device includes a semiconductor substrate, having front and back sides and having at least one cavity extending from the back side through the semiconductor substrate into proximity with the front side. At least one optoelectronic emitter is formed on the front side of the semiconductor substrate in proximity with the at least one cavity. A heat-conducting material at least partially fills the at least one cavity and is configured to serve as a heat sink for the at least one optoelectronic emitter.