7848 results about "Light emitting device" patented technology

The invention relates to the technical field of light emitting devices, and discloses a control method for a silicon light integrated multi-wavelength light emitting device, and the method comprises the steps: carrying out the grating coupling processing and polarization state separation processing of a plurality of wavelength channels of the silicon light integrated multi-wavelength light emitting device, and obtaining an initial optical characteristic data set; performing temperature response characteristic analysis to obtain a temperature field characteristic parameter set; performing spectral characteristic analysis on the plurality of wavelength channels to obtain wavelength channel characteristic vectors; a wavelength drift coefficient matrix and a refractive index change coefficient matrix are calculated, and a multi-wavelength linkage control data model is generated; according to the method, a hierarchical control structure comprising a quick response layer, a temperature compensation layer and a polarization optimization layer is constructed, multi-wavelength cooperative control operation is executed, and a steady-state control parameter set is output, so that the wavelength stability control precision and the temperature control precision are improved, the adaptive capacity to disturbance of different time scales is enhanced, and the stability of the system is improved. And stable operation under complex working conditions is ensured.

The embodiment of the invention provides a detection device, electronic equipment and a control method thereof, relates to the technical field of data detection, and aims to solve the problem that equipment with a health sign detection function is large in size. The detection device comprises a first circuit board, a light-emitting device, a photoelectric converter, a metal cover plate and a light-transmitting structure. The photoelectric converter and the light-emitting device are arranged on the same side of the first circuit board and are electrically connected with the first circuit board. The metal cover plate covers the first circuit board and is electrically connected with the first circuit board. The metal cover plate is provided with a first light through hole for exposing the light-emitting device and a second light through hole for exposing the photoelectric converter. The light-transmitting structure is filled in the first light-transmitting hole, the second light-transmitting hole and the accommodating cavity, wraps the light-emitting device and the photoelectric converter, and is connected with the light-emitting device, the photoelectric converter, the first circuit board and the metal cover plate to form an integrated structural member, so that the size of the detection device is reduced.

The embodiment of the invention provides a display panel and a display device, the display panel comprises a substrate, a plurality of sub-pixels and a first shading layer, the sub-pixels comprise shared sub-pixels and peep-proof sub-pixels, the shared sub-pixels comprise shared light-emitting devices, and the peep-proof sub-pixels comprise peep-proof light-emitting devices; the first shading layer is located on the side, away from the substrate, of the peep-proof light-emitting device and comprises a first shading structure and an opening area; the peep-proof sub-pixel comprises a peep-proof sub-pixel A, the peep-proof sub-pixel A comprises a peep-proof light-emitting device A, the peep-proof light-emitting device A is partially overlapped with the first shading structure in the direction perpendicular to the plane where the substrate is located, and the shared light-emitting device is not overlapped with the first shading structure. According to the display panel, the small-view-angle brightness of the first peep-proof sub-pixels can be compensated, the flicker problem when the display panel switches different modes is solved, and the user experience is improved.

The invention discloses a display panel and a display device. The display panel comprises a substrate, an isolation structure, a light emitting device and a packaging part. The isolation structure is arranged on one side of the substrate and forms an isolation opening in a surrounding mode, the isolation structure comprises a first sub-layer and a second sub-layer located on the side, away from the substrate, of the first sub-layer, the first sub-layer is provided with a side wall facing the isolation opening, and the second sub-layer is provided with a protruding eave part protruding from the side, facing the isolation opening, of the first sub-layer; at least part of the structure of the light-emitting device is located in the isolation opening; the packaging part is arranged on the side, away from the substrate, of the light-emitting device and comprises a first branch and a second branch, the side, away from the substrate, of the light-emitting device is covered with the first branch, and the side wall is covered with the second branch; wherein the second branch part has a first thickness, and the first thickness is smaller than the protruding length of the protruding eave part. The use performance of the display panel is improved.

The embodiment of the invention provides a display panel, a display device and a preparation method of the display panel, the display panel comprises a substrate, a first flat layer, a pixel definition layer, an isolation structure, a light emitting device layer, a packaging layer and an isolation piece, the first flat layer is arranged on one side of the substrate; the pixel definition layer is arranged on the side, away from the substrate, of the first flat layer, and the pixel definition layer comprises a pixel opening located in the display area and a first opening located in the non-display area; the isolation structure is located on the side, away from the substrate, of the pixel definition layer and provided with a plurality of isolation openings; the light-emitting device layer comprises a plurality of light-emitting units located in the display area. The packaging layer is located on the side, away from the substrate, of the isolation structure; the separator is located in the non-display area, and the separator is arranged between the first flat layer and the packaging layer. According to the invention, the separator reduces or prevents water vapor from flowing between the first flat layer and the packaging layer, and the service life of the light-emitting unit is prolonged.

The invention discloses a nail gun. The nail gun comprises a shell; the motor is arranged in the shell; the percussion assembly is arranged in a nailing period, can move from an initial position to a percussion position so as to knock out a nail to a workpiece, and can move from the percussion position to the initial position; the at least one light-emitting device is arranged on the shell; the first control circuit is configured to independently control the light-emitting device to work at least when the motor is not powered on; and the second control circuit at least can control the operation of the motor.

A fire suppression system includes an interface control module, and an interface module. The interface control module can activate a fire suppressant discharge system in response to receiving a fire detection signal. The interface module is connected with the interface control module and is connected with at least one of a first optical sensor and an interface expansion module. The interface expansion module is configured to connect with a second optical sensor. The first optical sensor and the second optical sensor are configured to detect a fire condition at an area of interest and provide the first detection signal to the interface control module in response to detecting the fire. The interface module includes light emitting devices corresponding to the first optical sensor and the interface expansion module, the light emitting devices configured to display different colors indicating a status of the first optical sensor and the interface expansion module.

A touch screen controlled light emitting pet toy that has a light emitting device equipped to direct a point of light on a surface to provide entertainment to a pet and includes movement about multiple axis and is operated by a touch screen computer based device communicably connected to a controller of the toy. The toy is equipped to receive user input from an application with a touch-screen directly or indirectly via a camera that provides live video data to the application and relays user input to the toy further allowingdikect control and pre-recorded pattern control of the light emitting device through low latency touch screen interactions.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to a boron-nitrogen compound with a polynary fused ring, an OLED (Organic Light Emitting Diode) with the compound and an organic light-emitting device with the compound. According to the boron-nitrogen compound disclosed by the invention, through matching of a fused heterocyclic structure and limited groups such as tertiary butyl and naphthenic base, the thermal stability of the compound can be improved, and the boron-nitrogen compound has an excellent luminescence characteristic; the boron-nitrogen compound provided by the invention is used as a light-emitting layer material, so that the organic light-emitting device can effectively have lower driving voltage and maintain the stability of the voltage, and the light-emitting efficiency is improved.

The invention discloses a nail gun. The nail gun comprises a shell; the motor is arranged in the shell; the battery pack is used for supplying power to the motor; the percussion assembly is arranged in a nailing period, can move from an initial position to a percussion position so as to knock out a nail to a workpiece, and can move from the percussion position to the initial position; the cartridge clip assembly is used for storing nails; the light-emitting device is arranged on the shell; the light-emitting device is arranged to be capable of displaying first information of the nail in the cartridge holder assembly and second information of the nail which is knocked out.

A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.

A light emitting device for a display including a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, and having a side surface exposing the active layer, in which a portion of the second conductivity type semiconductor layer and the active layer along an edge of the light emitting structure is insulative in a thickness direction to define an insulation region, and the insulation region includes implanted ions.

The invention provides a light emitting device and a display panel. The light-emitting device comprises a first electrode layer, a light-emitting function layer and a second electrode layer which are stacked in sequence; the light-emitting functional layer comprises at least one light-emitting layer, the material of the light-emitting layer comprises a boron-containing light-emitting dye, and the energy level difference between the singlet state and the triplet state of the boron-containing light-emitting dye is greater than or equal to 0.3 eV. In the material of the light-emitting layer, the singlet state and triplet state energy level difference (Est) of a boron-containing light-emitting dye is greater than or equal to 0.3 eV, and the T1 energy level of the boron-containing light-emitting dye is relatively low, so that TTA (triplet state-triplet state annihilation) and TPA (triplet state-polaron annihilation) processes can be avoided, the efficiency roll-off of the light-emitting device is reduced, and the service life of the light-emitting device is prolonged; in addition, the up-conversion process from the T1 energy level to the S1 energy level of the boron-containing luminescent dye can be avoided, generation of long-life excited state excitons in the dye is avoided, and the service life of a device is prolonged.

Provided is a light emitting device including a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, and the emission layer may include a condensed cyclic compound represented by Formula 1 below, thereby exhibiting high luminous efficiency and improved service life characteristics.

A light emitting device includes a planar array of individually addressable first light sources configured to emit visible light into a plurality of angular bins toward an environment, one or more second light sources configured to emit ultraviolet light, an imager positioned to receive light reflected from the environment, a processor configured to analyze one or more images captured from the imager and identify a shadow region in the environment, wherein one or more light sources of the plurality of individually addressable first light sources is directed to increase a light flux output in one or more angular bins of the plurality of angular bins corresponding to the shadow region. The one or more second light sources and may be individually addressable and positioned in a planar array on a substrate.

The embodiment of the invention provides a display panel, a manufacturing method thereof and a display device. The display panel comprises a substrate, a pixel definition layer, a process structure layer, an isolation structure and a display function layer comprising a plurality of light-emitting devices, the pixel definition layer comprises a pixel limiting part, the process structure layer is located on the side, away from the substrate, of the pixel limiting part, and the orthographic projection of the process structure layer on the substrate is located in the orthographic projection of the pixel limiting part on the substrate. The isolation structure is located on the side, away from the substrate, of the technological structure layer and comprises a first isolation layer, a second isolation layer and a third isolation layer which are sequentially arranged in a stacked mode, and the orthographic projection of the second isolation layer on the substrate is located in the orthographic projection of the first isolation layer on the substrate. The light-emitting device comprises a first electrode, a light-emitting function layer and a second electrode which are arranged in a stacked mode, and the second electrode is electrically connected with the first isolation layer. According to the embodiment of the invention, the flatness of the pixel limiting part can be improved, and the film formation of the electrode layer is facilitated, so that the display effect of the display panel is ensured.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an electron transport material, an OLED with the electron transport material and an organic light-emitting device with the electron transport material. According to the electron transport material disclosed by the invention, triazinyl is taken as a framework, phenyl and cyano-substituted biphenyl is taken as a specific substituent group, methyl, adamantyl, phenyl and pyridyl are limited to be matched, and the electron transport material is used as a material for forming an electron transport layer to manufacture an organic electroluminescent device, so that the evaporation process of the device can be smoothly carried out; and the light-emitting efficiency of the organic light-emitting device is effectively improved, and the application prospect is very good.

A light emitting device includes a plurality of individually addressable light sources spatially separated on a substrate and configured to emit light into an environment, and one or more optical elements positioned to receive the light from each light source and redirect the light into a plurality of different angular bins. Each bin of the angular bins has light from at least one light source of the plurality of individually addressable light sources and a first group of the plurality of different angular bins has a first angular width in theta or phi coordinates less than 10 degrees. The first angular width may be less than 5 degrees.

The invention provides an unmanned connection system and an unmanned connection method, and relates to the field of unmanned aerial vehicles. The unmanned connection system comprises a container, an aircraft and an unmanned vehicle, the container is used for loading goods; the aircraft comprises a flying body, and the bottom end of the flying body can be detachably connected with the top end of the container; the top end of the unmanned vehicle can be detachably connected with the bottom end of the container. The aircraft and the unmanned vehicle are separately connected with the top end and the bottom end of the container, and an automatic connection link with cooperation between the air and the ground is constructed. Moreover, visible light emitting devices are arranged on the two sides of one of the unmanned vehicle and the flying body in the width direction, cameras are arranged on the two sides of the other one, visible light is used as a positioning reference, the cameras can accurately capture and analyze visible light information, and therefore real-time and dynamic position guidance is provided for the unmanned vehicle to drive into the containing space. And the docking precision and reliability of the unmanned vehicle and the aircraft are improved.

A light emitting device comprises: a substrate; a first electrode on the substrate, the first electrode having holes, and having inclined surfaces along the peripheries of the holes; second electrodes on the substrate, each of which is in a respective one of the holes of the first electrode; and light emitting elements between the first electrode and the second electrodes, the light-emitting elements being electrically connected to the first electrode and the second electrodes.

The invention provides a display panel and a display device. The display panel comprises a substrate, a pixel defining layer, an isolation structure and a plurality of light emitting devices. The pixel limiting layer is arranged on one side of the substrate, the pixel limiting layer comprises a plurality of pixel openings, the edge of each pixel opening comprises at least one first edge part and a plurality of second edge parts, the at least one first edge part extends in the first direction, and the second edge parts intersect with the first edge parts. The isolation structure is arranged on one side of the substrate, and a plurality of isolation openings are defined by the isolation structure. The light emitting device includes a first electrode, at least a portion of which is located in the isolation opening. Wherein the first electrode which is located above at least one first edge part and is in lap joint with the isolation structure has a first thickness, the first electrode which is located above the plurality of second edge parts has a second thickness, and the second thickness is not greater than the first thickness. According to the invention, the lap joint yield of the first electrode is improved by changing the structure of the first electrode.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an organic small molecule compound, an OLED with the compound and an organic light-emitting device with the compound. According to the organic small molecule compound, the dibenzoheterocycle on the triarylamine compound is substituted and matched, and the organic small molecule compound is used as a material for forming a light-emitting auxiliary layer to manufacture an organic EL element, so that the evaporation process of the device can be smoothly carried out, the light-emitting efficiency of the organic light-emitting device is effectively improved, and the organic small molecule compound has a very good application prospect.

The side light-emitting device comprises a frame extending in the vertical direction and a light source module arranged on the inner side of the frame, the light source module emits light in the direction parallel to the extending direction of the frame, a light distribution piece is arranged in a light emitting path of the light source module, and the side light-emitting device is arranged on the side light-emitting device. The light rays are refracted by the light distribution piece and then are emitted in the direction away from the frame. The side light-emitting device can simulate the effect of illuminating the frame on one side of the window when sunlight enters from one side of the window, and can form a virtual image and simulate the window shadow effect in cooperation with the light-emitting surface of the lamp, so that the display effect of the lamp is more vivid, and the visual experience of a user is improved.

The invention relates to a method for determining the position of at least one object (P1-P6) in a space (2), in particular of at least one product positioned on a shelf (7), wherein the method includes: emitting a light signal, encoded with identification information for identifying the object, from a light-emitting device (6) positioned adjacent to the object, and capturing a scene with the aid f at least one freely movable camera (10), wherein a digital scene image generated with the aid of the camera represents the scene, and generating object position data on the basis of a computer-determined position of the light signal appearing in the digital scene image in relation to the camera and the identification information emitted with the light signal, and on the basis of an automatically determined orientation and position of the camera in the space when the scene is captured, wherein the object position data represents the position of the object in the scene with respect to the space.

One or more reduced, same form, light emitting apparatus(es) spaced apart and configured to be mounted at various heights and / or spacing employ the same power consuming light source input that is covered by a symmetrical or asymmetrical redirecting linear lens optics apparatus that is configured for use in a range of mounting heights to uniformly illuminate at least one legal path of egress below. An exemplary light apparatus is a horizontally rotatable device configured to project an illuminated directional building evacuation symbol / text / image onto an illuminated egress path below.

A light emitting system including a light emitting device having electronically controllable light output that can increase or decrease independently within a plurality of angular bins, an imager positioned to capture one or more images of the environment, and one or more processors configured to analyze the one or more images captured from the imager, identify a television, identify one or more first angular bins of the plurality of angular bins corresponding to the television, and direct the light emitting device to not emit light within the first angular bins.

A light emitting system including a light emitting device having electronically controllable light output that can increase or decrease independently within a plurality of angular bins, an imager positioned to capture one or more images of the environment, and one or more processors configured to analyze the one or more images captured from the imager, identify an individual in the environment, identify one or more first angular bins of the plurality of angular bins corresponding to the individual, and direct the light emitting device to increase a light flux output within the one or more first angular bins.

A light emitting system includes at least one light emitting device configurable to emit light into an external environment, a controller configured to adjust a light flux output from the at least one light emitting device, and a non-transitory computer readable storage media comprising a plurality of parameters, the parameters including rules for prioritizing a first illumination mode or first irradiance mode over a second illumination mode or second irradiation mode that direct the at least one light emitting device to emit a first light flux into a first angular bin and a second light flux different from the first light flux into a second angular bin different from the first angular bin.

An illumination system includes one or more angularly varying light emitting devices, an imager, and one or more time of flight sensors, wherein light output from the angularly varying light emitting device is based at least in part on images of the environment and information from the one or more time of flight sensors.

The embodiment of the invention provides a light-emitting device and laser equipment, and relates to the technical field of laser. The light emitting device includes: a mounting substrate including a connection pattern, connection pads, and an in-board interconnection region, the connection pads being electrically connected through the in-board interconnection region and the connection pattern; the light-emitting unit comprises a packaging tube shell and a laser chip arranged in the packaging tube shell; the light-emitting units are fixed on the connecting patterns of the mounting substrate, and the laser chips of each color are electrically connected with the two corresponding connecting bonding pads through the side wall wires, the conductive structures, the conductive areas and the in-board interconnection areas, so that independent power supply of the laser chips of different colors is realized. The problem that the using number of the laser chips is limited by the driving circuit is solved, the number of the driving circuit is not increased while the number of the laser chips is increased, the working efficiency of the driving circuit is effectively improved, and the cost is reduced.