Abstract: A plasma display panel comprising a front substrate and a back substrate formed opposite each other and bonded to each other at the peripheries, electrodes formed on the front substrate, a dielectric layer formed on the electrodes, a protective layer formed on the dielectric layer, another electrode and another dielectric layer formed on the back substrate, barrier ribs to keep spaces between the front substrate and the back substrate, and fluorescent materials packed in the spaces formed by the barrier ribs, the front substrate, and the back substrate. The barrier ribs include glass at least containing oxide of tungsten, phosphorus, barium, and vanadium.

Abstract: A self-luminous planar display device includes a back panel having first electrodes and second electrodes, a face panel with third electrodes on a face substrate, and a sealing frame. The first and second electrodes includes first and second electrode lead terminals pulled out to an outside, and a bent portion is formed on a portion of one of or both the first and second electrode lead terminals. Assuming a distance between the bent portion and the sealing frame as L1, a height of the sealing frame as H, and a distance between a periphery of the third electrode and the sealing frame as L2, a following relationship is established, 12 mm?(L1+H+L2)?38 mm.

Abstract: An example quantum dot (QD) device comprises a QD layer on a substrate, and may be fabricated by aerosol deposition, for example by mist deposition. An example approach includes providing a liquid precursor including QDs dispersed in a liquid carrier, generating a mist of droplets of the liquid precursor, directing the droplets towards the substrate so as to form a liquid precursor film on the substrate, and removing the liquid carrier from the liquid precursor film to form the quantum dot layer on the substrate. Example devices include multi-color QD-LED (light emitting diode) displays, and other devices.

Abstract: An electroluminescent device includes a substrate having a bank-forming face on one surface thereof, a bank formed on the bank-forming face, and a thin-film layer constituting an electroluminescent element at a region surrounded by the bank. The thin-film layer is formed by filling the region surrounded by the bank with a thin-film material liquid and solidifying the liquid. The bank-forming face and a contact face with the thin-film layer have curved surfaces so that the central portions thereof are convexed toward the substrate side.

Abstract: An electron-emitting device includes a first electrode; an insulating film that is disposed on the first electrode, includes at least one step in an upper surface thereof, and includes a first surface on a lower step portion of the step and a second surface on an upper step portion of the step; a second electrode that is disposed on the first surface at a distance apart from the step; and a third electrode that is disposed on the second surface at a distance apart from the step.

Abstract: An organic EL display includes an array of electrodes including first and second electrodes, a counter electrode, and an organic layer including a first emitting layer interposed between the array of electrodes and the counter electrode and a second emitting layer interposed between the first emitting layer and the counter electrode. Each of the first and second emitting layers is a continuous layer extending over a display region. Portions of a laminate including the array of electrodes, the organic layer and the counter electrode that correspond to the first and second electrodes form first and second organic EL elements different in luminous colors from each other.

Abstract: An image display device is provided, which includes a first substrate having a cold-cathode electron-emission element which emits electrons, and a second substrate which is spaced from and opposed to the first substrate. The second substrate has a transparent substrate, a light-emitting layer provided on the transparent substrate and including phosphor particles containing zinc sulfide as a base material, a boron nitride film disposed on a surface of the light-emitting layer, and an anode applying a voltage to the light-emitting layer.

Abstract: A nanodot electroluminescent diode is disclosed. The nanodot electroluminescent diode comprises a lower electrode, an upper electrode, and unit cells interposed between the electrodes, wherein the unit cells comprise a quantum dot electroluminescent layer and also include an organic layer and/or an inorganic layer in addition to the quantum dot electroluminescent layer. The disclosed nanodot electroluminescent diode provides high efficiency, stability, and high luminance, and mixed colors, multi-colors, full color, and white electroluminescence can be obtained.

Abstract: Disclosed herein are an organic electroluminescent (EL) device comprising a hole transport layer (HTL) and a method for fabricating the same. The organic electroluminescent (EL) device comprises a stack in which a light-emitting layer and a hole transport layer are interposed between an anode and a cathode, wherein the hole transport layer is made of a mixture of at least two materials, and wherein the mixture is selected from a mixture of an organic compound and one or more other organic compounds, a mixture of a metal or inorganic compound and one or more other metal or inorganic compounds, and a mixture of one or more organic compounds and one or more metal or inorganic compounds.

Abstract: An organic electro luminescence device includes a light emission unit disposed on a substrate and a passivation film including a plurality of organic films and a plurality of inorganic films, the plurality of organic films and the plurality of inorganic films are alternately stacked to cover the light emission unit on the substrate, wherein a side of the passivation film disposed between an edge of the substrate and an edge of the light emission unit is gradually thinner from the edge of the light emission unit towards the edge of the substrate.

Abstract: A display device includes a display panel including an organic light emitting diode, a sealing metal foil covering a side of the display panel on which the organic light emitting diode is disposed, and a sealant between the display panel and the sealing metal foil.

Abstract: An organic light emitting display device includes: an organic light emitting pixel unit having a first electrode, an organic light emitting layer, and a second electrode, formed on a substrate; where a first anti-moisture protective layer is formed on the upper surface of the second electrode; and a second anti-moisture protective layer is formed on the upper surface of the first protective layer, where the second protective layer includes desiccant particles of diameters including a predetermined maximum diameter and where the first protective layer is substantially devoid of desiccant particles having the predetermined maximum diameter or larger, and the first protective layer has a thickness substantially greater than the predetermined maximum diameter.

Abstract: The temperature dependence of the most important characteristics of OLEDs (11) can be effectively counteractively controlled by the power supply (18) thereof if the actual instantaneous operating temperature is detected metrologically by at least one temperature sensor (19) incorporated into the hermetically encapsulated OLED (11). For this purpose, a line section (20) composed of a material having a high temperature coefficient of its electrical resistance is applied in electrically insulated fashion to one of the electrodes (areal transparent anode 13 or geometrically structured cathode 16), in a manner facing or averted from the polymer (14). If the temperature sensor (19) is arranged before the cathode on the emission side, that is to say even if it is arranged at the anode (13), its line section (20) preferably runs outside the projection of those geometrically structured regions of the cathode (16) which govern the cross-sectional geometries of the polymer excitation and thus of the emissions (15).

Abstract: A white light-emitting organic electroluminescent element is disclosed, containing a substrate having thereon: an anode; a cathode; and a plurality of light emitting layers between the anode and the cathode, wherein the plurality of light emitting layers contains: a first light emitting layer which emits a light having a predetermined wavelength; a second light emitting layer which is located at a nearer position to the anode than the first light emitting layer and emits a light having a complementary color to the light having the predetermined wavelength; and a third light emitting layer which is located at a nearer position to the cathode than the first light emitting layer and emits the light having the complementary color to the light having the predetermined wavelength.

Abstract: A display device manufacturing method including arraying pixels 20 comprising plural sub-pixels with different light-emitting colors in two intersecting directions on a flexible substrate 12 by patterning plural sub-pixels 14, 16, 18 with different light-emitting colors onto the flexible substrate 12, wherein patterning of the sub-pixels is performed such that from the two directions of pixel array, the plural sub-pixels with different light-emitting colors are arrayed within the pixels in a rows along the direction X with the smaller substrate dimensional change ratio.

Abstract: An organic electroluminescence element is disclosed, which includes at least one organic compound layer including a light-emitting layer between a pair of electrodes, wherein the light-emitting layer contains a host material, a light-emitting material and a phosphine oxide compound. An organic electroluminescence element exhibiting high light-emission efficiency and having excellent drive durability is provided.

Abstract: Provided is an OLED device and method of making the OLED device. According to an embodiment, the OLED device incorporates a microcavity structure including a dielectric mirror formed on a glass substrate, an anode formed above the dielectric mirror, an organic film layer formed above the anode, and a reflective electrode formed above the organic film layer such that the cavity is formed in the organic film layer by the dielectric mirror and the reflective electrode. The OLED device with microcavity structure can incorporate one or more phosphors deposited on an underside of the glass substrate such that light of additional wavelengths can be generated by the OLED device.

Abstract: An emission layer of an organic light emitting diode (OLED) for emitting a white light includes a host material, a first luminescent dopant, and a second luminescent dopant. The host material has a peak emission wavelength of about 300 nm to about 530 nm. The first luminescent dopant has a peak emission wavelength of about 300 nm to about 530 nm. The second luminescent dopant has a peak emission wavelength of about 530 nm to about 720 nm.

Abstract: An OLED may include regions of a mineral having a refractive index less than that of the substrate, allowing for emitted light in a waveguide mode to be extracted into air. These regions can be placed adjacent to the emissive regions of an OLED in a direction parallel to the electrodes. The substrate may also be given a nonstandard shape to further improve the conversion of waveguide mode and/or glass mode light to air mode. The outcoupling efficiency of such a device may be up to two to three times the efficiency of a standard OLED.

Abstract: An organic light emitting display device and a method of fabricating the same are disclosed. One embodiment includes an organic light emitting display device including an anode, an organic light emitting layer, and a cathode on a substrate, an encapsulation member protecting the organic light emitting display device, a first sealant bonding the substrate and the encapsulation member together, and a second sealant formed of a frit glass to adhere to a periphery of the first sealant.

Abstract: A plasma display panel (PDP) includes a first substrate and a second substrate facing each other, an upper dielectric layer on the first substrate, a plurality of discharge electrodes between the first and second substrates, and a plurality of barrier ribs to define a plurality of discharge cells between the first and second substrates, each of the barrier ribs having a first portion and a central portion, the first portion having a width different than a width of the central portion, and each of the barrier ribs having a complimentary color with respect to a color of the first substrate and/or a color of the upper dielectric layer.

Abstract: A plasma display panel includes: a first substrate and a second substrate facing the first substrate, the first and second substrates defining a discharge space therebetween; and barrier ribs between the first and second substrates and defining non-discharge and discharge regions at the discharge space. The barrier ribs include: first ribs and second ribs adjacent the first ribs, the first and second ribs defining the non-discharge regions; third ribs adjacent the second ribs, the second and third ribs defining first discharge regions of the discharge regions, the first regions being adjacent the non-discharge regions, and the third ribs having a width different from that of the second ribs; and fourth ribs adjacent the first ribs, the first and fourth ribs defining second discharge regions of the discharge regions, the second regions being adjacent the non-discharge regions, and the fourth ribs having a width different from that of the first ribs.

Abstract: A plasma display panel capable of reducing (or preventing) image quality deterioration due to light transmission of a rear substrate. In one embodiment, a plasma display panel has a discharge space and includes a front substrate module, a rear substrate module opposing the front substrate module, and a barrier rib between the front substrate module and the rear substrate module. Here, the rear substrate module includes a rear substrate; an electrode on the rear substrate; a rear dielectric layer on the electrode; a dielectric adding layer on the rear dielectric layer and including a material having a different light transmission property than the rear dielectric layer; and a phosphor layer on the dielectric adding layer and the barrier rib and facing the discharge space.

Abstract: To prevent occurrence of abnormal discharge which would reduce the quality of images in a PDP. At least one of an address electrode, a bus electrode, a bus main electrode, and a black electrode of a display electrode formed on a substrate is formed of metal particles and high-resistance glass to dissipate charge accumulated on a dielectric through the high-resistance glass and to prevent charging in a glass component itself, thereby reducing abnormal discharge. The high-resistance glass is preferably realized by vanadium phosphate glass containing vanadium, phosphorus, antimony, and barium. The metal particles desirably contain flaky particles.

Abstract: The purpose of the present invention is to provide a plasma display panel containing black colored parts which have high resistant against degradation in blackness or peeling by high-temperature oxidation.

Abstract: Disclosed are an optical sheet for a plasma display panel, a method for manufacturing the same and a plasma display panel employing the same. More particularly, provided are an optical sheet for a plasma display panel to improve a contrast ratio and a method for manufacturing the same. The optical sheet for a plasma display panel comprises a transparent substrate, a plurality of light-transmitting structures arranged on the transparent substrate, a reflective film arranged on the side of each of the light-transmitting structures, a black matrix arranged on the reflective film, and a cover part arranged on the black matrix.

Abstract: Photosensitive paste compositions, barrier ribs of plasma display panels (PDPs) prepared using the same, and PDPs including the barrier ribs are provided. The photosensitive paste composition includes an organic-inorganic complex sol and an inorganic material, wherein the average refractive index (N1) of the organic-inorganic complex sol and the average refractive index (N2) of the inorganic material satisfy the equation ?0.2?N1?N2?0.2. Using the photosensitive paste composition, patterned barrier ribs for PDPs having high resolution and high precision can be made by exposure to light only once. Barrier ribs having higher reflective indices than conventional barrier ribs can also be obtained.

Abstract: The present invention forms barrier ribs by using a glass sheet so that it becomes possible to reduce the cost of forming the barrier ribs, and to easily form the barrier ribs and electrodes. A dry film, which is fired to be formed into a dielectric layer, is formed on a substrate, a glass sheet having a thickness corresponding to a height of barrier ribs to be formed is secured onto the dry film, and a resist pattern corresponding to a shape of barrier ribs is formed on the glass sheet so that, by cutting off the glass sheet corresponding to unnecessary portions through sand blasting, the glass sheet is formed into the shape of barrier ribs, and the dry film is fired at a temperature lower than softening points of the substrate and the glass sheet so that the substrate and the glass sheet are anchored by the dielectric layer corresponding to the fired dry film; thus, the barrier ribs are formed.

Abstract: A plasma display panel (PDP) and a method of manufacturing the same are provided. The PDP includes a substrate; a dielectric layer formed on the substrate; and a barrier rib disposed to contact the dielectric layer, wherein the dielectric layer or the barrier rib comprises a first material or a second material according to a concentration gradient, the first material and the second material respectively having a low etching selectivity and a high etching selectivity with respect to a predetermined etching solution. According to the method, adhesive strength at the interface between the dielectric layer and the barrier rib can be improved.

Abstract: An arc lamp apparatus is disclosed, which may include a base comprising a plurality of electrical connections, and a vessel. The vessel may include a plurality of electrodes, a gas filled bulb, and a plurality of pinches. An electrical arc that emits radiation may be formed within the plurality of electrodes. A first pinch may contain a first electrode of the plurality of electrodes. A second pinch may be fixed perpendicular to the base. The second pinch may contain a second electrode not fixed to the base. The second electrode may be connected to an external electrode connecting lead that routes in proximity to the gas filled bulb. The external electrode connecting lead may be shrouded by a reflective material.

Abstract: The structural unit for an electric lamp, with an elongated, ceramic inner bulb, with a central part, is closed at two sides by capillaries, the inner bulb having a lamp axis, and a luminous means being accommodated in the inner bulb, the inner bulb being surrounded by an outer bulb, and the outer bulb having two ends, which are joined directly to the capillaries of the discharge vessel via in each case one joining means.

Abstract: An LED lighting assembly including a plurality of individual LEDs mounted on a common, bendable heat sinking member designed to remove heat from the LEDs during operation and also to be formed (bent) to provide the desired light direction and intensity. Several such assemblies may be used within an LED lamp, as also provided herein. The lamp is ideal for use within medical and dental environments to assure optimal light onto a patient located at a specified distance from the lamp.

Abstract: A vehicular lamp lighting circuit includes a control unit configured to control an electric current that flows to a light source unit. The control unit has an electric current supply section configured to output the electric current to the light source unit, a switching controller configured to compare, with a reference voltage, and to control, by switching, the electric current that is outputted from the electric current supply section, an output current detection section configured to detect the electric current that flows into the light source unit, and a voltage transform circuit configured to transform an electric potential difference that arises from the electric current that flows into the output current detection section into a difference voltage and to output the difference voltage thus converted to the switching controller.

Abstract: The present invention provides a pseudospark switch that overcomes the aforementioned limitations of existing pseudospark switches and proved e-beams for applications such as FELs, pulsed lasers, X-ray machines, and radar. The improvement in e-beam quality is obtained by inductively ionizing gas inside the hollow cathode chamber (HCC), prior to main gap breadkown using a HCC that incorporates a spiral induction coil. The gas in the hollow cathode chamber is ionized by the discharge of an auxiliary capacitor bank through the spiral coil that forms the back surface of the HCC.

Abstract: Ion accelerating devices including connection mechanisms with integrated shielding electrode and related methods are disclosed. According to an embodiment, an ion accelerating device of an ion implantation system comprises: a first element; a first connection system within the first element, the first connection system including a first connector and a first encapsulated shielding electrode around the first connector; and a second connection system within a second element other than the first element, the second connection system being coupled to the first connector; wherein the first encapsulated shielding electrode includes a first shielding portion adjacent to a first interface surface of the first element where the second connection system interfaces with the first element, in a cross-sectional view, the first shielding portion being substantially U-shaped.

Abstract: Disclosed herein is an Active Matrix Organic Light-Emitting-Diode (AMOLED) drive circuit using transient current feedback. The AMOLED drive circuit includes a current Digital-to-Analog Converter (DAC), a data line drive transistor, a constant current source, a variable current source, a differential amplifier, and a transient charging current control unit. The DAC generates current corresponding to input digital data. The data line drive transistor is configured such that the drain terminal thereof is connected to the output node of the current DAC. The constant current source is connected between the source terminal of the data line drive transistor and a ground. The variable current source is connected between both the output node of the current DAC and the drain terminal of the drive transistor, and a voltage source. The differential amplifier is configured to input the output voltage thereof to the gate terminal of the drive transistor.

Abstract: A light emitting pixel includes a first organic light emitting diode (OLED) and a capacitor supplying to the first OLED current generated by an electric charge corresponding to a difference between a first voltage supplied to a first electrode of the capacitor and a second voltage supplied to a second electrode of the capacitor. The light emitting pixel further include a second OLED to supply the first voltage to the first electrode. The light emitting pixel further includes a voltage supply device to supply the first voltage to the first electrode in response to the second voltage.

Abstract: A plasma display device and driving method thereof are disclosed. In the plasma display device, a wall charge state of each cell is initialized after forming a wall voltage between respective sustain electrodes by gradually decreasing a voltage of the sustain electrodes. In addition, in a sustain period, a high level sustain discharge pulse having a positive voltage and a low level sustain discharge pulse having a negative voltage are applied to the sustain electrode while maintaining a voltage of a scan electrode at a ground voltage. In this way, a maximum voltage applied to a scan electrode driver that applies the driving waveform to the scan electrode is decreased. In addition, a sustain discharge pulse is applied only to the sustain electrode, which is a common electrode, and therefore the driving waveform between each cell can be prevented from being distorted in the sustain period.

Abstract: A light emitting element driving circuit, which can achieve accurate/high-speed operation even at low voltage supply voltage, comprises: driving current supply, connected to light emitting element in series between first and second power supplies, to supply driving current to the light emitting element according to the voltage of control terminal; current determiner to determine and output the current according to an output light amount of the light emitting element; current/voltage converter to convert the determined current into voltage and output it to the control terminal of the driving current supply if control signal is in a first state, and to electrically shield its output voltage terminal from the control terminal of the driving current supply if the control signal is in a second state; and resetter to connect the control terminal of the driving current supply to the second power supply if the control signal is in the second state.

Abstract: A power supply circuit includes a power supply input for receiving power from a power supply, a power supply output for supplying power to a load, a voltage reference circuit, and a switch circuit. The voltage reference circuit is connected between the power supply input and the power supply output for regulating voltage of the power supply circuit. The switch circuit is connected to the voltage reference circuit and the power supply output. The voltage reference circuit supplies regulated voltage to the switch circuit. The switch circuit controls current between the power supply input and the power supply output to be changed alternately at a certain frequency, thereby changing power output to the load to save electricity.

Abstract: A system and method are described for controlling voltage on discharge capacitors which control light energy from flash lamps, wherein the method includes measuring over time an operational behavior of a flash lamp for performing photothermolysis, wherein a discharge capacitor transfers energy to the flash lamp, empirically deriving a behavior of the flash lamp as a function of operation over time, and using the empirically derived behavior of the flash lamp to control a voltage of the discharge capacitor and thus energy transferred to the flash lamp.

Abstract: A display apparatus includes a display panel and a backlight assembly including a lamp and an inverter. The inverter includes a main transformer, a main driver and a voltage controller. The main transformer applies a driving alternating current (AC) voltage to the lamp. The main driver generates an output signal controlling the main transformer based on a feedback signal from the main transformer. The voltage controller is electrically connected to a feedback terminal of the main driver to control a maximum level of a voltage applied to the feedback terminal.

Abstract: A ballast circuit operable to drive a high intensity discharge lamp in accordance with an embodiment of the present applications includes an energy conversion circuit operable to convert an input voltage into a bus voltage and to provide the bus voltage to a DC bus, a first half bridge connected across the DC bus and operable to control an output voltage supplied to the lamp, a control circuit operable to control the half bridge such that a desired output voltage is provided to the lamp, a series inductor connected in series between the half bridge and the lamp; and a parallel capacitor resistor connected across the lamp. The control circuit operates the half bridge at a high frequency for a set period of time such that a high voltage is built up across the parallel resistor, and then reduces the frequency of the half bridge until it approaches a resonance frequency which ignites the lamp.

Abstract: A solid state light source having first and second component light sources and an interface circuit and a method for making the same are disclosed. The first and second component light sources emit light having first and second color points on different sides of the black body radiation curve. The first and second component light sources include LEDs that emit light of a first wavelength and a layer of a light converting material that converts a portion of that light to light of a second wavelength. The interface circuit powers the first and second component light sources such that the solid state light source has a color point that is closer to the black body radiation curve than either the first or second color points. A third component light source can be included to expand the range of white color temperatures that can be reached by the light source.

Abstract: A back-light arrangement for providing back-light to a display panel such as a liquid crystal video display panel, includes a plurality of light emitting devices arranged and distributed for providing back-light to the display panel, and electronic circuitry arranged for driving the plurality of light emitting devices to produce the back-light. The electronic circuitry contains a plurality of drivers, each of which is arranged to individually drive a corresponding one of the plurality of light emitting devices to emit light upon receipt of an actuating signal. A controller is arranged to multiplex an intensity signal to each one of the plurality of drivers for individually driving each one of the plurality of light emitting devices.

Abstract: A circuit for driving an array of Light Emitting Diode (LED) strings at a constant current has a plurality of LEDs. A plurality of LED drivers is provided wherein a single LED driver is coupled to each of the plurality of LEDs. A voltage reference generator is used for sending a voltage reference signal to each LED driver. The voltage reference generator is external to each of the plurality of LED drivers. An input line voltage is coupled to the voltage reference generator. A clock generator is provided for sending to a clock signal to each of the plurality of LED drivers. The clock generator is external to each of the plurality of LED drivers. A low-frequency PWM dimming input signal is coupled to each of the plurality of LED drivers to allows dimming of the LEDs.

Abstract: A modular, scalable and configurable incoherent light source is provided. The light source includes an array of lighting modules supported on a frame that focuses emitted radiation from the modules at a region of interest. The geometry and physical configuration of the support structures, including the frame, may accommodate various energy intensities at various distances. The modules may be made up of multiple LEDs or other individual light sources, may be of different or the same wavelength, and may be individually controllable for the ultimate lighting application. The light source may be used in medical imaging applications.

Abstract: A method, for controlling color output of a variable color lighting system (1) capable of emitting light within a color gamut, comprising the steps of receiving (10) a request for a target color (T), converting the target color (T) to a set of lighting system control parameters, and applying (15) the set of lighting system control parameters, thereby controlling the color output of the lighting system (1).

Abstract: A method of determining an operating current adjustment for a light emitting semiconductor element in order to generate a predetermined brightness includes applying a test voltage to the light emitting element, determining a corresponding test current through the light emitting element, and determining the operating current adjustment dependent on the determined test current and the applied test voltage.

Abstract: A method of controlling the output of a luminaire by receiving a first target signal associated with a first frame; generating a first light output control signal for an on time portion of the first frame, the light output control signal responsive to the received first target signal; sampling a light output during the on time portion of the first frame, the light output being responsive to the first light output control signal; receiving a second target signal associated with a second frame, the second frame following the first frame; comparing the received second target signal with the sampled light output of the on time portion of the first frame; and generating an error signal responsive to the comparing.