Abstract: An organic light-emitting device is provided. The organic light-emitting device includes: a first electrode; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including: an emission layer; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, 50% or more of a total volume of the second electrode being silver (Ag), the hole transport region including an amine-based polymer including a first repeating unit represented by Formula 1, and a number average molecular weight of the amine-based polymer being about 1,000 or more.

Abstract: A display apparatus includes a display panel including configured to display an image and a sound generating device on a rear surface of the display panel, the sound generating device being configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a second structure over or under the first structure, the second structure including a first part having a piezoelectric characteristic and a second part between adjacent first parts to have flexibility.

Abstract: A display device includes: an organic EL layer formed over a circuit section formed over a substrate, an insulating layer interposed between the circuit section and the organic EL layer; a cathode electrode formed over the organic EL layer in common for all pixels; and a contact electrode that is provided at an outer peripheral portion of an effective pixel region and that electrically connects the cathode electrode and the circuit section. In the display device, the cathode electrode is electrically connected to the contact electrode, on an inner side as compared to an end surface of a film formation area of the organic EL layer.

Abstract: A display panel including an active area including organic light emitting elements therein; and an edge area adjacent to the active area and including a power line and auxiliary electrode therein, the auxiliary electrode being connected to the power line, and the edge area including margin and contact areas, wherein the organic light emitting elements include a first electrode; a second electrode on; and organic layers between the first electrode and the second electrode, wherein the auxiliary electrode and the second electrode are spaced apart from each other in the margin areas and are connected to each other in the contact areas, and wherein the contact areas and the margin areas face, and are spaced apart in a first direction from, the first electrodes that are adjacent to the edge area, and wherein the contact and margin areas are alternately arranged in a second direction that intersects the first direction.

Abstract: A sensor element including a diamond in which nitrogen-vacancy centers in a diamond crystal structure stabilize in a negative charge state. By ensuring that the diamond of the sensor element is n-type phosphorus-doped and contains nitrogen-vacancy centers in the crystal structure, the probability that nitrogen-vacancy centers in the diamond lattice are in a neutral state decreases, and the nitrogen-vacancy centers stabilize in a negative charge state.

Abstract: The present invention provides an OLED display panel and a manufacturing thereof, and an OLED device. The OLED display panel adopts organic host materials, organic light-emitting materials, and amorphous fluoropolymers to produce a light-emitting layer, so that amorphous polymers improve thermal stability and solvent resistance of the light-emitting layer, and the light-emitting layer is not damaged by solvents when an electron transport layer is formed by solvents, thereby resolving the process of processing OLED devices by solvents having damage to the light-emitting layer causing poor display performance in the prior art.

Abstract: An optical wavelength conversion device includes an optical wavelength conversion member configured to convert the wavelength of incident light; a heat dissipation member which is more excellent in heat dissipation than the optical wavelength conversion member; and a joint portion which joins the optical wavelength conversion member and the heat dissipation member together. The optical wavelength conversion member includes a plate-shaped ceramic fluorescent body and a reflecting film disposed on a heat dissipation member-side surface of the ceramic fluorescent body. The joint portion has a thermal conductivity of 120 W/mK or more. The joint portion has a melting point of 240° C. or higher.

Abstract: An inorganic electroluminescence device having heat resistance, moisture resistance and physical durability improved by applying a transparent electrode layer including a metal mesh substrate or a metal patterned substrate, and a method for manufacturing the same.

Abstract: A display apparatus includes a substrate comprising a first pixel region and a second pixel region adjacent to the first pixel region; a circuit device layer on the substrate; a first light-emitting device module on the circuit device layer, the first light-emitting device module comprising a first light-emitting device overlapping the first pixel region to display a first color; and a second light-emitting device module on the first light-emitting device module, the second light-emitting device module having a first pixel penetration hole overlapping the first pixel region, the second light-emitting device module further comprising a second light-emitting device overlapping the second pixel region to display a second color different from the first color.

Abstract: Provided is a wavelength conversion member that can be readily adjusted in chromaticity and can be increased in productivity and a production method for the wavelength conversion member. A wavelength conversion member 1 having a first principal surface 1a and a second principal surface 1b opposed to each other includes a glass matrix 2 and phosphor particles 3 disposed in the glass matrix 2, wherein concentrations of the phosphor particles 3 in the first principal surface 1a and in the second principal surface 1b are higher than concentrations of the phosphor particles 3 in surface layer bottom planes 1c and 1d located 20 ?m inward from the first principal surface 1a and 20 ?m inward from the second principal surface 1b, respectively.

Abstract: OLEDs containing a stacked hybrid architecture including a phosphorescent organic emissive unit and two fluorescent organic emissive units are disclosed. The stacked hybrid architecture includes a plurality of electrodes and a hybrid emissive stacked disposed between at least two of the electrodes. The stack contains at least three emissive units and at least two charge generation layers. At least one of the three emissive units is a phosphorescent organic emissive unit and at least two of the three emissive units are fluorescent organic emissive units. More specifically, the two fluorescent organic emissive units may be blue organic emissive units that emit light from the same or different color regions.

Abstract: A display apparatus includes a display panel including configured to display an image and a sound generating device on a rear surface of the display panel, the sound generating device being configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a second structure over or under the first structure, the second structure including a first part having a piezoelectric characteristic and a second part between adjacent first parts to have flexibility.

Abstract: A display device includes: an organic EL layer formed over a circuit section formed over a substrate, an insulating layer interposed between the circuit section and the organic EL layer; a cathode electrode formed over the organic EL layer in common for all pixels; and a contact electrode that is provided at an outer peripheral portion of an effective pixel region and that electrically connects the cathode electrode and the circuit section. In the display device, the cathode electrode is electrically connected to the contact electrode, on an inner side as compared to an end surface of a film formation area of the organic EL layer.

Abstract: There is provided a white light emitting device comprising: first and second LEDs operable to generate excitation light having a dominant wavelength in a range from 440 nm to 480 nm and mounted on a substrate; a first photoluminescence material which generates light having a peak emission wavelength in a range from 500 nm to 590 nm; and a second photoluminescence material which generates light having a peak emission wavelength in a range from 600 nm to 650 nm, wherein the first LED is covered by the first photoluminescence material, and the second LED is covered by the first and second photoluminescence materials.

Abstract: The disclosure discloses an organic light-emitting display panel, a method for adjusting color temperature thereof, and a display device, and the organic light-emitting display panel includes: an underlying substrate, and a plurality of light-emitting elements arranged on the underlying substrate; each of the light-emitting elements includes a first electrode, a first light-emitting layer, a second electrode, a second light-emitting layer, and a third electrode arranged on the underlying substrate in that order in a light exit direction of the organic light-emitting display panel, where a wavelength of emitted light from the first light-emitting layer is greater than a wavelength of emitted light from the second light-emitting layer; and the first electrode, the second electrode, and the third electrode are connected respectively with different voltage signal terminals.

Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 1000 C to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.

Abstract: Sputtering systems and methods for packaging applications. In some embodiments, a method for processing a plurality of packaged devices can include forming or providing a first assembly having a stencil and a two-sided adhesive member attached to a first side of the stencil, with the stencil having a plurality of openings, and the two-sided adhesive member having a plurality of openings corresponding to the openings of the stencil. The method can further include attaching the first assembly to a ring to provide a second assembly, with the ring being dimensioned to facilitate a deposition process. The method can further include loading a plurality of packaged devices onto the second assembly such that each packaged device is held by the two-sided adhesive member of the first assembly and a portion of each packaged device extends into the corresponding opening of the two-sided adhesive member.

Abstract: Provided are a wavelength conversion member which contains a phosphor such as a quantum dot and has high reproducibility of white light; and a backlight unit. The wavelength conversion member includes a wavelength conversion layer having a resin layer that is provided with a plurality of concave portions which are discretely disposed on one main surface thereof; and a plurality of fluorescent regions containing phosphors, which are disposed in the concave portions formed in the resin layer, in which a surface roughness Ra of a surface of the resin layer on a side where the concave portions are formed is 0.3 to 5 ?m.

Abstract: Provided herein are metal halide perovskite nanoplatelets, methods for making metal halide perovskite nanoplatelets, and devices and composite materials that include metal halide nanoperovskite nanoplatelets. The metal halide perovskite nanoplatelets may be stable at ambient temperature and pressure, thereby easing device fabrication.

Abstract: A light emitting device package includes a light emitting structure including a first light emitting cell, a second light emitting cell, and a third light emitting cell, each of the first to third light emitting cells including an active layer to emit light of a first wavelength in a first direction and being separated from each other in a second direction, orthogonal to the first direction, a first light adjusting portion including a first wavelength conversion layer in a first recess portion of the first light emitting cell, the first wavelength conversion layer to convert light of the first wavelength to light of a second wavelength, and a second light adjusting portion including a second wavelength conversion layer in a second recess portion of the second light emitting cell, the second wavelength conversion layer to convert light of the first wavelength to light of a third wavelength.

Abstract: A backlight module includes a transparent substrate, a plurality of light sources on a surface of the transparent substrate, a reflective sheet on a side of the transparent substrate adjacent to the plurality of light sources, and at least one supporting member between the transparent substrate and the reflective sheet. The light sources are configured for emitting light. The reflective sheet is configured for reflecting light toward the transparent substrate. The at least one supporting member is configured for separating the plurality of light sources from the reflective sheet.

Abstract: A wavelength conversion element according to the invention includes a wavelength conversion layer having a plurality of air holes, and excited by light in a first wavelength band to thereby generate light in a second wavelength band different from the first wavelength band, a transparent member adapted to seal a recessed section occurring on a first surface of the wavelength conversion layer due to the air hole, a reflecting layer disposed so as to be opposed to the first surface of the wavelength conversion layer, and a base member disposed so as to be opposed to the reflecting layer, and the transparent member is disposed in some of the plurality of air holes.

Abstract: A light emitting device includes: a light emitting element; a light-transmissive member including a first lower surface, an outer periphery of which being located on an outer side of the light extraction surface in a plan view, an upper surface having a greater area than an area of the first lower surface, a first lateral surface connected to the upper surface, a second lateral surface positioned on an inner side of the first lateral surface and connected to the first lower surface, and a second lower surface connected to the first and second lateral surfaces; a light guiding member covering at least a portion of a lateral surface of the light emitting element and at least a portion of the second lateral surface and the second lower surface; and a covering member covering the first lateral surface and a lateral surface of the light guiding member.

Abstract: A light source module includes first LED elements that emit blue light, second LED elements that emit amber light, and a wavelength conversion member disposed in optical paths of the first LED elements and the second LED elements. The wavelength conversion member converts a portion of the blue light emitted by the first LED elements to yellow light, transmits a portion of the blue light emitted by the first LED elements, and substantially transmits the amber light emitted by the second LED elements.

Abstract: A method for manufacturing a light emitting device includes: placing a light-transmissive member, which includes first and second regions, above a light emitting element so that the first region of the light-transmissive member is positioned directly above a top surface of the light emitting element, and a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member are covered by a light guide member; and covering an outer surface of the light guide member with a light reflective member. The light-transmissive member contains a fluorescent substance and a light scattering material, a concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region, and a concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.

Abstract: An electroluminescent display is flexible and stretchable, and therefore able to be attached to a textile. All interior layers of the electroluminescent display can be made using a screen printing process which can be scaled for volume production.

Abstract: An organic light-emitting device including: a substrate; an anode above the substrate; wiring above the substrate, spaced away from the anode in a direction parallel to a main surface of the substrate; a light-emitting layer above the anode, containing an organic light-emitting material; an intermediate layer on the light-emitting layer and the wiring, continuous over the light-emitting layer and the wiring and containing a fluoride of a first metal which is an alkali metal or an alkaline earth metal; an organic functional layer on the intermediate layer, continuous over the light-emitting layer and the wiring and made of an organic material having an electron transporting property or an electron injection property and doped with a second metal having a property of cleaving a bond between the first metal and fluorine in the fluoride; and a cathode on the organic functional layer, continuous over the light-emitting layer and the wiring.

Abstract: At least one array of LEDs (e.g., in a flip chip configuration) is supported by a substrate having a light extraction surface overlaid with at least one lumiphoric material. Light segregation elements registered with gaps between LEDs are configured to reduce interaction between emissions of different LEDs and/or lumiphoric material regions to reduce scattering and/or optical crosstalk, thereby preserving pixel-like resolution of the resulting emissions. Light segregation elements may be formed by mechanical sawing or etching to define grooves or recesses in a substrate, and filling the grooves or recesses with light-reflective or light-absorptive material. Light segregation elements external to a substrate may be defined by photolithographic patterning and etching of a sacrificial material, and/or by 3D printing.

Abstract: An LED lighting device is provided. The LED lighting device may include a light source configured to emit a light of first color temperature, second color temperature, and third color temperature and a switch electrically connected to the light source to control the light source to emit the lights of the first color temperature, the second color temperature, and the third color temperature, respectively. The light source includes a first light source configured to emit a light of a first color temperature, and a second light source configured to emit a light of a second color temperature that is different from the first color temperature, and the light source emits a light of a third color temperature between the first and second color temperatures when the switch parallel-connects the first light source and the second light source.

Abstract: A lifestyle LED security light including a light-emitting unit configured with two sets of LED loads respectively emitting different color temperature lights is disclosed. At dusk the light-emitting unit is automatically turned on for a first level illumination with a low color temperature light featuring an aesthetic night view with the motion sensor being deactivated for a time duration, and then the light emitting unit is changed to a second level illumination and at the same time the motion sensor is activated, wherein when the motion sensor detects a motion intrusion, the light-emitting unit is instantly switched to perform a third level illumination with a a high light intensity and a high color temperature light. The color temperatures of the first level illumination and the third level illumination are respectively adjustable by simultaneously and reversely adjusting the electric powers respectively allocated to the two sets of LED loads.

Abstract: A light emitting diode and a method of fabricating the same are described. The light emitting diode has: a hole transport layer, an active layer and an electron transport layer. The active layer is disposed on the hole transport layer, and the active layer has a mesophase structure of an organic amine compound and a perovskite structure compound. The electron transport layer is disposed on the active layer.

Abstract: The invention relates to an LED-module (1) for emitting mixed light, preferably white light, comprising a light field (2??;2??) which is divided into several flat sectors for dispensing different light spectra. The flat sectors of the light field (2??;2??) are embodied as sectors of a circle (3c??,3d??;3c??,3d??) and sectors of a circular ring (3a??,3??;3a??,3b??).

Abstract: An opto-electronic element according to an exemplary embodiment of the present disclosure includes a transparent conductive layer including a first material made of a metal and a second material made of a metal halide.

Abstract: An organic light emitting display device is disclosed. The organic light emitting display device comprising at least one light emitting part between an anode and a cathode and comprising at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound that includes a functional group having at least three or more nitrogen atoms and has high electron mobility, a bridge connected to the functional group, and a substituent substituted at a meta position of the bridge.

Abstract: There is herein described a light source comprising a semiconductor device emitting a primary light, a thermally conductive optic having a reflective coating and a wavelength converter having a front surface and a rear surface. The optic is mounted to the rear surface of the wavelength converter and the primary light impinges on the wavelength converter in an emission region. The wavelength converter converts at least a portion of the primary light into a secondary light that is emitted from the front and rear surfaces of the converter and the optic reflects secondary light emitted from the rear surface back into the emission region. The light source may be used in either transmissive or reflective configurations.

Abstract: A display substrate includes a first switching element electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction, an organic layer disposed on the first switching element, a shielding electrode disposed on the organic layer and overlapping the data line, a pixel electrode disposed on the same layer as the shielding electrode and a light-blocking pattern disposed on the shielding electrode and adjacent to a corner of the pixel electrode.

Abstract: A method for manufacturing a light emitting device includes: providing a substrate including a placement region for placing a light emitting element on a top surface; mounting the light emitting element in the placement region; and forming a frame body surrounding the placement region on the substrate. The step of forming the frame body is performed by arranging a first frame body and second frame body on the substrate to surround the placement region. The second frame body have a larger diameter than the first frame body, and have the same thickness as the first frame body.

Abstract: A light emitting device includes a plurality of light emitting elements, a light transmissive member, a first member and a second member. Each of the light emitting elements has a pair of electrodes on a lower surface thereof. The light-transmissive member is disposed on an upper surface of each of the light emitting elements to transmit light from the light emitting elements. The first member is disposed on one or more lateral surfaces of the light-transmissive member and constitutes part of an upper surface of the light emitting device. The second member surrounds an outer periphery of each of the light emitting elements and constitutes part of a lower surface of the light emitting device. Lower surfaces of the electrodes are exposed from the second member.

Abstract: Some embodiments include a method of operating a tunable light module. The method can include driving a lamp in the tunable light module, having lamps of at least two colors, to produce a colored light according to the color mixing plan that corresponds to a correlated color temperature (CCT); measuring a light characteristic of the lamp using a light sensor; detecting a degradation level by comparing the measured light characteristic against an expected light characteristic; and adjusting a current level for driving the lamp at the CCT by referencing the color mixing plan and an alternative coefficient corresponding to the degradation level.

Abstract: A light emitting module including a light emitting device package structure and a heat dissipation structure is provided. The light emitting device package structure includes light emitting devices, a patterned reflective element and a patterned conductive layer. The patterned reflective element is disposed around side surfaces of the light emitting devices and exposes a first bottom surface of a first pad and a second bottom surface of a second pad. The patterned conductive layer is disposed on the first bottom surface of the first pad and the second bottom surface of the second pad. The light emitting devices are electrically connected to each other in a series connection, a parallel connection or a series-parallel connection through the patterned conductive layer. The heat dissipation structure is disposed below the light emitting device package structure and includes a heat dissipation unit and a patterned circuit layer disposed on the heat dissipation unit.

Abstract: A light source device having: a blue light emitting element that emits blue light having an emission peak in a wavelength region of 440 nm to 460 nm; a green phosphor that absorbs part of the blue light emitted by the blue light emitting element and thereby emits green light having an emission peak in a wavelength region of 500 nm to 575 nm; a red phosphor that absorbs at least one of part of the blue light emitted by the blue light emitting element and part of the green light emitted by the green phosphor, and thereby emits red light having an emission peak in a wavelength region of 600 nm to 690 nm; and an absorbent containing neodymium fluoride that absorbs part of the green light and part of the red light.

Abstract: A compound selected from is provided. An organic light emitting device including an anode, cathode, and organic layer disposed between the anode and cathode, including one of the compounds is also provided.

Abstract: This multilayer component (11) for encapsulating an element (12) which is sensitive to air and/or moisture comprises an organic polymer layer (1) and at least one barrier stack (2). The barrier stack (2) comprises at least three successive thin layers (21-23) having alternately lower and higher degrees of crystallinity, the ratio of the degree of crystallinity of a layer of higher degree of crystallinity to the degree of crystallinity of a layer of lower degree of crystallinity being greater than or equal to 1.1.

Abstract: The invention provides a light emitting diode device that comprises a light emitting diode die. The method for manufacturing the light emitting diode device comprises positioning a first stencil over a carrier, printing a phosphor material onto the carrier through at least one aperture of the first stencil to form a phosphor material piece on the carrier, and attaching the light emitting diode die onto the printed phosphor material piece.

Abstract: A light-emitting arrangement includes a radiation-emitting semiconductor chip that, during operation, emits primary radiation at least from a main emission surface, a first conversion element that absorbs part of the primary radiation and emits secondary radiation, and a deflection element that causes a direction change for part of the primary radiation, wherein the first conversion element is arranged in a lateral direction next to the radiation-emitting semiconductor chip, the deflection element guides part of the primary radiation onto the first conversion element, and the light-emitting arrangement, in operation, emits mixed light including the primary radiation and the secondary radiation.

Abstract: A display apparatus is provided. The display apparatus includes a substrate, a display panel on the substrate, and an encapsulation film sealing the display panel. The encapsulation film includes at least one organic layer and/or at least one inorganic layer and at least one pair of conductive layers.

Abstract: To constitute a translucent electrode including a base layer having a surface in which surface roughness (Ra) is 2 or less and elastic modulus is 20 GPa or more, and an electrically conductive layer that is provided on the surface side of the base layer and that contains silver as the principal component.

Abstract: A quantum dot light-emitting device includes: a first electrode; a second electrode opposite to the first electrode; an emission layer between the first electrode and the second electrode, the emission layer including quantum dots; and an inorganic layer between the emission layer and the second electrode, the inorganic layer including a metal halide.

Abstract: A brightness enhancing structure for a reflective display incorporates a transparent sheet having an inward hemispherical surface, a backplane electrode, an apertured membrane between the hemispherical surface and the backplane electrode, and a light reflecting electrode on an outward side of the membrane. A voltage source connected between the electrodes is switchable to apply a first voltage to move the particles inwardly through the apertured membrane toward the backplane electrode, and a second voltage to move the particles outwardly through the apertured membrane toward the light reflecting electrode. Movement of the particles toward the light reflecting electrode frustrates total internal reflection of light rays at the hemispherical surface.

Abstract: The present application relates to an electronic device comprising a hole-transport layer A, a doped hole-transport layer B and a hole-transport layer C, where hole-transport layers A, B and C are arranged between the anode and the emitting layer, and where hole-transport layer B is arranged on the cathode side of hole-transport layer A and hole-transport layer C is arranged on the cathode side of hole-transport layer B.