4239 results about "Light emitting device" patented technology

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 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 element includes the following: a cathode; an anode; a light-emitting layer provided between the cathode and the anode; an electron transport layer provided between the cathode and the light-emitting layer; and a potential well provided between the cathode and the light-emitting layer, and being a region having a larger electron affinity than a surrounding region.

A light emitting apparatus of the present disclosure includes: a first light emitting unit including: a first crystalline layer provided on a light extraction surface side; a second crystalline layer; and a light emitting layer disposed between the first crystalline layer and the second crystalline layer, at least a portion of a light extraction surface of the first crystalline layer being an optical functional surface, the optical functional surface having a light collecting effect; and an optical unit including at least one optical member having a light collecting effect, the optical unit being opposed to the light extraction surface side of the first light emitting unit.

A light emitting device is provided. The light emitting device includes a blue light unit, configured to emit blue light; a green light unit, configured to emit green light; a red light unit, configured to emit red light; and a warm white light unit, configured to emit warm white light. A dominant wavelength of the warm white light is in a range from 570 nm to 600 nm. A color coordinate of the warm white light unit and a color coordinate of the red light unit are respectively located at opposite sides of the Planckian locus. The blue light unit, the green light unit, the red light unit and the warm white light unit are configured to cooperate to emit mixed white light and are configured to adjust a color temperature of the mixed white light.

The invention is suitable for the technical field of electronic paper, and provides a light source control method of electronic paper display equipment and the electronic paper display equipment, and the method comprises the steps: obtaining the current ambient light information of the electronic paper display equipment; detecting whether the current ambient light intensity is higher than a light intensity threshold; if it is detected that the current environment light intensity is higher than the light intensity threshold value, a closing instruction is generated; if it is detected that the current environment light intensity is lower than or equal to the light intensity threshold value, determining target light-emitting brightness and target light-emitting color temperature of the light-emitting device based on the current environment light intensity; and controlling the light-emitting device to output light according to the target light-emitting brightness and the target light-emitting color temperature. According to the method, the light-emitting device is controlled to be turned off when the current ambient light intensity is higher than the light intensity threshold, the reflective characteristic of the electronic paper can be returned, and the most appropriate reading experience is provided for a user; when the current ambient light intensity is low, light output can be accurately controlled, and the problem that an existing backlight scheme is not matched with the reflective characteristic of the electronic paper display equipment is solved.

A nano composite, a nanoparticle ink composition including a solvent and the nanocomposite, and a light-emitting device including a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, wherein the interlayer includes an emission layer, and at least one layer included in the interlayer is made from the nanoparticle ink composition. The nano composite includes: a metal oxide nanoparticle; and a chelating ligand bonded to a surface of the nanoparticle and including a cyclic moiety.

The invention discloses an organic light-emitting device and a light-emitting device, one side of the organic light-emitting device close to an anode is provided with two hole transport layers which are arranged according to a high-low refractive index relationship, the material of the first hole transport layer is as shown in a formula 1, and the material of the second hole transport layer is as shown in a formula 2. According to the organic light-emitting device and the light-emitting device, through matching optimization of device film layer materials and structural combination of film layers with different refractive indexes, the stability of the materials and transmission of current carriers are guaranteed, meanwhile, light field distribution is improved through optimization of an optical microcavity structure, the photon extraction efficiency of the device is improved, and the light-emitting efficiency of the device is improved. The ineffective loss of photon energy in the organic layer is reduced, so that the performance of the organic light-emitting device and the light-emitting device comprising the organic light-emitting device is improved in the aspects of light-emitting efficiency, starting voltage, light-emitting service life and the like. Formula 1 and Formula 2.

The invention provides an arylamine compound, an optical film, a light-emitting device and a display panel, and relates to the technical field of display, and the structural formula of the arylamine compound is shown in the specification. The arylamine compound provided by the invention has a relatively high refractive index, and can effectively improve the luminous efficiency of the light-emitting device when being applied to a covering layer of the light-emitting device.

In one example, a light emitting device comprises a substrate, a color filter disposed above the substrate, and a light emitting element disposed above the color filter. The light emitting element includes a first electrode, an organic layer and a second electrode. The first electrode has a recessed shape or a domed shape in a cross-sectional view, and the second electrode is disposed between the color filter and the first electrode. The light emitting element is configured to emit a light towards the substrate. A first layer is disposed between the light emitting element and the substrate, an upper surface of the first layer having the recessed shape or the domed shape in the cross-sectional view.

The invention discloses fluorescent glass ceramic, a preparation method thereof and a luminescent device, and belongs to the technical field of luminescent materials. The fluorescent glass ceramic comprises glass powder and fluorescent powder, the glass powder comprises zinc borosilicate glass powder; the zinc borosilicate glass powder comprises the following components in percentage by mole: 5%-20% of SiO2, 10%-35% of B2O3, 20%-65% of ZnO, 0.3%-15% of P2O5, 2%-20% of RO and 0.1%-15% of R2O, RO is selected from at least one of MgO, CaO, SrO and BaO, and R2O is selected from at least one of Li2O, Na2O and K2O; the fluorescent powder comprises blue-green fluorescent powder; the emission peak wavelength of the blue-green fluorescent powder is 480-510 nm; based on the total mass of the glass powder and the fluorescent powder, the mass percentage content of the glass powder is 30-80%, and the mass percentage content of the fluorescent powder is 20-70%. The fluorescent glass ceramic is high in reliability and can be applied to high-power light emitting, a light emitting device formed by combining the fluorescent glass ceramic and a proper light source can provide an accurate azure light emitting effect, and the requirements in application scenes with harsh color requirements are met.

A method for manufacturing a quantum dot layer includes: performing first application of applying, to a position overlapping with a substrate, a first solution including a plurality of particles including a core and a first ligand, a first inorganic precursor, and a first solvent; performing first heating of heating first solution to a first temperature or higher after the performing first application, the first temperature being a higher temperature of a melting point of the first ligand and a boiling point of the first solvent; and performing second heating of heating the first inorganic precursor to a second temperature after the performing first heating, the second temperature being higher than the first temperature and being a temperature, at which the first inorganic precursor epitaxially grows around the core and at which a first shell configured to coat the core is formed to form a plurality of first quantum dots.

A line and level determination system for a trenchless construction apparatus has a block assembly which is attached by welding to a lead casing to be installed with the trenchless construction apparatus. The block assembly has a water inlet, a water outlet, a tilt sensor and a light emitting device disposed within the water outlet. A water hose has a first end attached to the water inlet and a second end attached to a water source. The line and level determination system has a controller connected to the tilt sensor and the light emitting device. The controller selectively energizes the tilt sensor and the light emitting device. Data from the tilt sensor is displayed on a screen of the controller. A surveying instrument, such as a theodolite, may be utilized to determine line from the illumination of the light emitting device into the casing.

The present invention relates to an organic light-emitting device employing, as a host of a light emission layer, an anthracene derivative compound having a characteristic structure by introduction of a benzofuran structure into the anthracene backbone, and as a dopant of the light emission layer, a polycyclic compound having a characteristic structure. The organic light-emitting device according to the present invention is an organic light-emitting device with significantly improved external quantum efficiency and can be advantageously utilized not only for lighting devices but also for various display devices, such as flat, flexible, and wearable displays.

A semiconductor light emitting device includes an edge-emitting element including emitters, a first front-surface electrode, a second front-surface electrode, first wires, and second wires. The emitters include a first emitter including a first element electrode, and a second emitter including a second element electrode. The first front-surface electrode is electrically connected to the first element electrode. The second front-surface electrode is electrically connected to the second element electrode. The first wires are electrically connecting the first element electrode to the first front-surface electrode. The second wires are electrically connecting the second element electrode to the second front-surface electrode. In plan view, a largest distance between adjacent ones of the second wires in the first direction is greater than a largest distance between adjacent ones of the first wires in the first direction.

An alpha-sialon phosphor which is represented by general formula (Cax, Euy) (Si12-(m + n) Alm + n) (OnN16-n), and which has an average linear expansion coefficient (alpha ') at 25-900 DEG C of 4.2-4.6 ppm / DEG C (inclusive). In the general formula, 0 < x < 2.0, 0 < y < = 0.5, 0.3 < = x + y < = 2.0, 0 < m < = 4.0, and 0 < n < = 3.0.

A display panel and a display device are provided, The display panel includes: a circuit layer, a light-emitting device layer located at a side of the circuit layer and including vertical light-emitting diodes; and a touch structure. A part of the touch structure is located between the light-emitting device layer and the circuit layer, and / or a part of the touch structure is located at a side of the light-emitting device layer away from the circuit layer.

The utility model relates to the technical field of beauty instruments, and particularly discloses skin care equipment which comprises a working head, the front end of the working head can be in contact with the skin, and the skin care equipment further comprises a radio frequency working module which comprises a plurality of electrodes and is used for outputting radio frequency current to the skin; the light working module comprises a light emitting device, and the light working module is used for emitting light rays with the wavelength ranging from 630 nm to 1940 nm; and the controller is electrically connected with the radio frequency working module and the optical working module and is used for outputting a control instruction for controlling the radio frequency working module and the optical working module to work simultaneously so as to perform light irradiation and radio frequency current action on the skin. Therefore, the controller outputs a control instruction for controlling the radio frequency working module and the optical working module to work simultaneously, so that the light irradiation and the radio frequency current effect can be carried out cooperatively. The synergistic effect can give play to the advantages of the two, and the skin care effect is enhanced.

An embodiment of the present application discloses a display panel and a display panel manufacturing method thereof. The display panel of the embodiment of the present application forms a channel through a light emitting device layer in a buffer region such that material of a cathode can enter a cathode overlap region through the channel and overlap a wiring exposed by a first aperture. When an electron functional layer utilizes an evaporation process, the cathode utilizes an evaporation process or a sputtering process with a smaller evaporation angle and forms the electron functional layer and the cathode by the same mask, material of the cathode and the electron functional layer can extend to the cathode overlap region through the channel due to the configuration of the channel, thereby lower a manufacturing cost for the display panel.

A light-emitting device includes a base member having a recess inside which a light-emitting element is disposed; and a light-reflective member continuously disposed on an upper surface of the bottom portion and at least a portion of an inner lateral surface of a wall portion inside the recess of the base member, in a cross-sectional view, the inner lateral surface of the wall portion having a first surface, a second surface located above the first surface, and a third surface connecting the first surface and the second surface, a shortest distance between the second surface and the light-emitting element being larger than a shortest distance between the first surface and the light-emitting element, the third surface being located below an upper surface of the light-emitting element, and an upper end of the light-reflective member being located below an upper surface of the wall portion.

The invention relates to the technical field of semiconductor manufacturing, in particular to a light-emitting diode and a light-emitting device. The light-emitting diode at least comprises a substrate, an epitaxial laminated layer, a transition layer and a coarsening structure, the epitaxial laminated layer is located on the substrate, and the epitaxial laminated layer comprises a first semiconductor layer, an active layer and a second semiconductor layer which are laminated in sequence; the transition layer is located between the active layer and the first semiconductor layer; the coarsening structure is formed on the side wall of the substrate and extends to at least part of the side wall of the first semiconductor layer, and the coarsening structure does not extend to the side wall of the transition layer. Through the arrangement, impurities caused by coarsening can be effectively prevented from entering the active layer, and the electric leakage risk of the chip is improved.

The objective is to improve the heat dissipation of the light-emitting device. [Solution] A first conductive member 10, a second conductive member 20 spaced apart from the first conductive member in a first direction, a first joining member 30 positioned on the upper surface of the first conductive member, a second joining member 40 positioned on the upper surface of the second conductive member, and a light-emitting element 50 positioned on the first and second joining members and spanning the first and second conductive members, having a light-emitting portion 51 and a first electrode 52 and a second electrode 53 positioned on the lower surface of the light-emitting portion and spaced apart from each other in a first direction, wherein the first electrode has a first portion 521 in contact with the light-emitting portion and the first joining member, and a second portion located on the second electrode side of the first portion and having a lower surface located above the lower surface of the first portion, wherein in cross-sectional view, the thickness of the second portion of the first electrode is greater than the thickness of the light-emitting portion, and the first distance in the first direction between the second portion of the first electrode and the second electrode is smaller than the second distance in the first direction between the first conductive member and the second conductive member.

A light emitting display apparatus can include a substrate including a display portion; a plurality of pixels disposed in the display portion; a common electrode disposed in the display portion and electrically connected to each of the plurality of pixels; and a pixel common voltage line disposed in the display portion and electrically connected to the common electrode. Also, the light emitting display apparatus can further include at least one closed loop line disposed at an edge portion of the substrate to surround the display portion; at least one cliff pattern portion overlapping with the at least one closed loop line, and a light emitting device layer including a self-light emitting device, disposed on the display portion and the at least one cliff pattern portion, in which the self-light emitting device is isolated by the at least one cliff pattern portion.

The invention provides a light-emitting device for improving fracture, a preparation method thereof and a display panel, and belongs to the technical field of photoelectron manufacturing. The light-emitting device comprises at least two light-emitting units, bridging metal and a first bearing layer, the at least two light-emitting units are arranged on the surface of the first bearing layer at intervals, and the bridging metal is located on the surface of the first bearing layer and located in a gap between the at least two light-emitting units. The at least two light-emitting units are connected in series through the bridging metal. The problem that the bridging metal is easy to break can be improved, and the reliability of the light-emitting device is improved.

The invention provides a display panel and a display device. The display panel comprises a plurality of pixel units arranged in an array, and each pixel unit comprises a light-emitting device and a pixel driving circuit; the light-emitting device is connected in series in a light-emitting loop of the first power line and the second power line; the pixel driving circuit comprises a first reset transistor, a second reset transistor and a driving transistor. When a first light-emitting control signal accessed to the grid electrode of the first reset transistor is in an effective level, the first reset transistor is switched on, and when a target scanning signal accessed to the grid electrode of the second reset transistor is in an effective level, the second reset transistor is switched on, a first reset signal is transmitted to the third node, the second node and the first node, and a second reset signal is transmitted to the second node. And resetting the third node, the second node and the first node. According to the embodiment of the invention, through the design of the reset module, the display panel has an OBS function, the frequency switching effect is improved, and the stability of the display effect is improved.

An organic light emitting diode and an organic light emitting device including the same are discussed. The organic light emitting diode can include a first compound represented by a following formula, a second compound as a p-type host, and a third compound as an n-type host in an emitting material layer. As a result, the organic light emitting diode and the organic light emitting device have advantages in the driving voltage, the luminous efficiency and the lifespan.

A light-emitting device includes a first electrode, and second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode. The interlayer includes an emission layer and a layer. The emission layer includes a first hole transport compound, a first electron transport compound, and a third compound. The layer includes the first electron transport compound, a metal-containing material, and a second electron transport compound, and the layer is between the emission layer and the second electrode.

Presented herein are systems and methods for a camera that can detect a trespassing animal or unauthorized pet activity. A system can include a camera, light emitting device, sound emitting device, and processor. The camera can capture visual data of an area. The processor can be in communication with the camera, the sound emitting device, and the light emitting device. The processor can analyze the visual data to detect presence of an animal within the area; determine, based on the analysis, whether the animal is a trespassing animal; and responsive to determining that the animal is a trespassing animal or is pet engaging in the unauthorized activity activate the sound emitting device to emit a sound or the light emitting device to emit a light selected to deter the trespassing animal or pet engaging in the unauthorized activity.