393results about How to "Large luminous area" patented technology

Disclosed is an organic EL display panel with an organic light emitting layer of a uniform film thickness. The organic EL display panel comprises a substrate, a line-shaped bank that is arranged on the substrate and defines line-shaped regions on the substrate, and two or more organic EL elements arranged in a row in each of the line-shaped regions. Each of the organic EL elements includes an anode arranged on the substrate, a hole injection layer arranged on the anode and comprised of a metal oxide, an organic light emitting layer arranged on the hole injection layer, and a cathode arranged on the organic light emitting layer. The hole injection layer is formed in a concave or convex shape, a part of the hole injection layer is arranged below the bank, and the organic light emitting layeris formed by coating the line-shaped regions with an organic light emitting material.

The invention relates to the technical field of semiconductor photoelectronic device manufacturing, in particular to a semiconductor light emitting diode (LED) with a nanometer light emitting surface. The inventive method comprises growing a dielectric layer (12) and a metal layer (13) on a GaP layer (2) of the conventional LED, and sequentially using the metal layer (13) as a mask to etch the dielectric layer (12) and the parts outside a P type electrode (11) on the upper surface of the GaP layer (2) to obtain the LED with the nanometer light emitting surface. The method also comprises coating a layer of indium tin oxide (ITO) conducting film (10) on the nanometer light emitting surface and the upper surface of the P-type electrode (11), and preparing a P-type electrode (11) with the same structure on the P-type electrode (11) coated with the ITO conducting film (10). The invention reduces light reflex, improves device performance, and can be used in various semiconductor LEDs. Meanwhile, the invention has the advantages of simple process, low cost, and applicability to batch production.

The invention relates to an OLED light-emitting device and a manufacturing method of the OLED light-emitting device. The OLED light-emitting device comprises a substrate, a planarization layer and a plurality of light-emitting units, wherein the planarization layer is located on the substrate and provided with a plurality of bending parts which are arranged at intervals; the light-emitting units are located on the planarization layer, and each light-emitting unit is located on the corresponding bending part and has a shape corresponding to that of the bending part. Each light-emitting unit comprises a first electrode, a light-emitting structure located on the first electrode and a second electrode located on the light-emitting structure. A cross section of each bending part has an arc-shaped outline as a whole. According to the OLED light-emitting device and the manufacturing method of the OLED light-emitting device, by arranging the bending parts in the contact positions of the light-emitting units and the planarization layer, the planar planes of the light-emitting units are turned into bending surfaces, the aperture rate of organic light-emitting diodes is substantially increased, light-emitting area is enlarged, and thus the luminance of the OLEDs is improved, power consumption is reduced, and the service life of the product is prolonged.

The invention provides a preparation method of a perovskite quantum dot/polymer composite fluorescent film. The method comprises the following steps that S1, perovskite raw material ingredients and polymer ingredients are dissolved in an organic solvent to obtain a film forming solution; S2, a substrate material is coated with the film forming solution; S3, the substrate material coated with the film forming solution continuously passes through a plurality of temperature regions to be heated; the perovskite quantum dot/polymer composite fluorescent film is generated. The preparation method provided by the invention has the advantages that a multi-section heating drying mode is used; the fluorescent quality of the quantum dot optical film can be better controlled; the method can be used for continuously and industrially producing the composite fluorescent film; the production flow process can be obviously simplified; the production efficiency is improved; the cost is reduced.

The invention relates to a LED street lamp, in particular to an expandable LED street lamp and a method for expansion of luminous surface of LED street lamp. The LED street lamp comprises a lamp body equipped at the top of a lamp post of the LED street lamp. The invention is characterized in that a plurality of dismountable and independent LED working modules are equipped in the lamp body, each working module is composed of a piece of heat conducting substrate and a LED lamp bulb equipped on the front side of the LED heat conducting substrate, and a printed circuit is disposed on the heat conducting substrate; the lamp body also comprises a plurality of independent constant current driving devices, one constant current driving device corresponds to one LED working module, and the constant current driving devices supply power to the LED working modules. The method for expansion of luminous surface of LED street lamp comprises adding the LED working modules. The invention provided an expandable LED street lamp and a method for expansion of luminous surface of LED street lamp.

The embodiment of the invention discloses a flexible display panel, a flexible display device and a manufacturing method of the flexible display panel. The flexible display panel comprises a flexiblesubstrate, a display device layer arranged at one side of the flexible substrate and including multiple light-emitting units, a lens layer and a color filtering layer orderly arranged at the light-emergent side of the display device layer, wherein the color filtering layer comprises a black matrix, and multiple filtering units defined by the black matrix, the area of each filtering unit is enlarged when the filtering unit is in the stretching state, the lens layer comprises lenses arranged between the light-emitting units and the corresponding filtering units, and each lens is used for formingenlarged light spot through the light ray sent from the light-emitting unit and penetrating the lens, the area of the light spot is greater than the area before stretching of the filtering unit. Through the flexible display panel disclosed by the embodiment of the invention, the problem that the brightness is reduced since the aperture ratio of the display panel is reduced when the existing flexible display device is stretched and the problem that the brightness is non-uniform since the display panel is in non-uniform stretching are dealt with to a certain degree.

The invention relates to a process of growing a nucleating layer on the surface of a patterned substrate at a low temperature to form an uneven surface. The invention overcomes the problem that in a conventional LED (Light-Emitting Diode) device structure, an active layer has a superstrong depolarization field, and thus, an energy band of a quantum well is inclined, an electron hole wave function is separated in space and the radiative recombination efficiency is reduced, so that the internal quantum efficiency of a LED is reduced. The invention also provides an epitaxial wafer structure of a gallium nitride-based LED and a preparation method of the epitaxial wafer structure, wherein the epitaxial wafer structure has high crystalline quality and a nonplanar active layer structure is implemented on a weak polarity surface of the epitaxial wafer structure. Therefore, the internal quantum efficiency of the LED is improved.

The invention provides a light emitting diode and a making method thereof. The making method of the light emitting diode comprises the following steps of: separately providing a semiconductor substrate and a sapphire substrate, wherein a first bonding layer is formed on the semiconductor substrate, and a sacrifice layer, a light emitting diode core and a second bonding layer are formed on the sapphire substrate in sequence; bonding the first bonding layer and the second bonding layer; removing the sacrifice layer and stripping the sapphire substrate. The invention increases the effective light emitting area of the light emitting diode, improves the heat radiating and enhances the light emitting efficiency.

The invention discloses an organic light emitting display and a manufacturing method thereof. The organic light emitting display comprises a flatness layer and an organic light emitting element, wherein the first surface of the flatness layer comprises a flat area and a rugged area connected with the flat area, and the flat area and the rugged area are arranged in a stagger and interval mode; the organic light emitting element comprises an organic light emitting layer and a reflection layer; the organic light emitting layer and the reflection layer are stacked on the rugged area; and the part, corresponding to the rugged area, of the reflection layer is provided with a diffuse reflection part with the same shape as that of the rugged area. According to the above organic light emitting display, the reflection layer with the same shape is formed on the rugged area on the organic light emitting element, and mirror reflection can be effectively controlled; as the reflection layer has a rugged shape, the light emitting area is increased, and the light emitting efficiency per unit area is improved; and in addition, as the reflection layer can effectively control mirror reflection, circular polarizers can be saved or reduced, and the light extraction efficiency is greatly improved.

The embodiment of the invention provides a light-emitting device, and relates to the technical field of display and illumination. The light-emitting device can increase the light-emitting area and achieve uniform and mixed light emergence. The light-emitting device comprises a back plate, a packaging structure, a light-emitting structure and a scattering layer, wherein the light-emitting structure and the scattering layer are arranged between the back plate and the packaging structure, the scattering layer is located at a light emergence side of the light-emitting structure, the light-emitting structure is separated into a plurality of light-emitting units, the scattering layer is separated into a plurality of scattering units, and the multiple light-emitting units correspond to the multiple scattering units one to one. Each light-emitting unit comprises a first light-emitting sub-unit, a second light-emitting sub-unit and a third light-emitting sub-unit and is applied to manufacturing of a display device and an illumination lamp.

An organic EL display device includes a thin film transistor substrate in which a light-emitting element is provided for each of plural sub-pixels constituting each pixel, a counter substrate provided with a coupled color filter which is a color filter arranged to be extended over plural adjacent sub-pixels and allowing light in one wavelength region to pass through and a light-shielding film which is arranged on a boundary between adjacent color filters to allow lights in different wavelength regions to pass through and shields light, a filler arranged between the thin film transistor substrate and the counter substrate and made of a transparent organic material, and a filler thickness adjustment part which adjusts to cause a thickness of the filler in a region where the light-shielding film is provided to be thinner than a thickness of the filler in a region where the light-emitting element is provided.

The invention is a manufacturing method for gallium nitride base brightening dioxide N type ohm contact electrode. It includes following steps: 1)etches out circle or rectangular or any shape hole whose diameter or side length is less than 50 um on the N electrode area of designed pipe core with dry etching method or humidity corroding method on the extension structure of gallium nitride base brightening dioxide on the sapphire substrate, etches to the N type contact layer; 2) produces a layer of P type transparent electrode on P type gallium nitride layer; 3) evaporates insulating film such as silicon dioxide or silicon nitride on the sample; 4) corrodes off the insulating film on N type layer etched or corroded with the photoetching method or corrosion method, and exposes N type layer, maintains the insulating film whose diameter or side length is about 100 um on the platform or side walls of the hole; 5) finally uses photoetching and evaporation or spattering method to produce N electrode, forms the gallium nitride base brightening dioxide N type ohm contact electrode.

The invention discloses an LED (Light Emitting Diode) structure and a manufacturing method thereof. The LED structure comprises a base plate, a light emitting epitaxy structure, a first electric contact layer, a second electric contact layer, a transparent insulating layer, a first reflection layer, a second reflection layer, a first barrier layer, a second barrier layer, a first electric electrode and a second electric electrode. The first electric contract layer and the second electric contact layer are respectively arranged on a first electric semiconductor layer and a second electric semiconductor layer which are in a light emitting epitaxy structure. The transparent insulating layer covers the light emitting epitaxy structure, the first electric contact layer and the second electric contact layer and comprises a first contact window and a second contact window which respectively expose the first electric contact layer and the second electric contact layer. The first reflection layer and the second reflection layer respectively cover the first contact window and the second contact window and extend on the transparent insulating layer. The first barrier layer and the second barrier layer respectively cover the first reflection layer and the second reflection layer. The first electric electrode and the second electric electrode are respectively arranged on the first barrier layer and the second barrier layer and fully fill the first contact window and the second contact window.

The invention relates to a no-reflection high-efficient-luminescence unitary-WLED power-capacity-expansion high-power light source. A plurality of blue-light BLED chips are welded on a radiating base plate. The surfaces of the BLED chips are coated with silica gel phosphor powder, which forms white-light WLED illuminants. The high-light-transmittance and high-intensity industrial plastic PC is made into a thin isopachous hemisphere-shaped casing. The PC casing is filled with high-transparency silicon gel which has the same light transmittance as the PC, which forms a silica gel hemispherical lens. The silica gel lens is packaged above the phosphor powder along the centre to form the no-reflection and high-efficient-luminescence unitary WLED light source. A plurality of unitary WLED light sources are assembled to a high-power WLED light source by capacity expansion. The light source can be make into a street lamp, an emergency lighting lamp, a safety lighting lamp for mine roadway, a mine cap lamp, a safety lighting lamp for subway and airport, an indoor lighting lamp and other WLED lighting lamps. The invention has the advantages of scientifically reasonable structure, low production cost, good radiating property, low power consumption, high efficient luminescence, long service life and other advantages.

An electroluminescent wire core having a flexible central electrode, a luminescent layer and a transparent, conductive layer. An outer surface of the central electrode is coated with the luminescent layer and the transparent, conductive layer respectively. In the transparent, conductive layer is disposed luminescent power which is covered by thermoplastic macromolecular polymer and synthetic resin.

A saddle-ride type vehicle includes a vehicle body, a housing body holding a rear-view mirror, and a stay structure provided between the vehicle body and the housing body. The stay structure secures the housing body to the vehicle body. A front blinker is provided in the stay structure.

The invention discloses a light emitting device and a manufacturing method thereof. A groove is formed on the substrate of the light-emitting device, and a buffer layer, an n-contact layer and an active layer are sequentially deposited on the groove, thereby increasing the light-emitting area of ​​the active layer. Therefore, the luminous efficiency is improved, and high-brightness light can be obtained with a substrate of the same size, thereby reducing production costs.

The invention discloses an AlGaInP light-emitting diode (LED) chip, which comprises a GaAs substrate serving as an epitaxial layer substrate. An epitaxial layer is arranged on one surface of the GaAs substrate, and serves as a PN junction of the LED chip. An Au thin film is plated on the other surface of the GaAs substrate, and serves as the cathode end of the LED chip. BeAu thin films arranged at equal intervals are deposited on the epitaxial layer, and an Au thin film is deposited on the BeAu thin films to form the anode ends of the LED chip. A cutting method for the AlGaInP LED chip specifically comprises the following steps of: (1) half-cutting the LED chip on one surfaces of the anode ends of the LED chip by using a diamond cutter to form cutting channels to separate the uniformly arranged anode ends of the LED chip, wherein the LED chip is 100 to 300 mu m thick; (2) coating a blue film at the anode ends of the LED chip, and coating a Mylar film at the cathode end of the LED chip; and (3) placing the LED chip on a cleaving table of a cleaver in a way that the anode end of the LED chip is downward and the cathode end of the LED chip is upward, and pressing and breaking the LED chip along the cutting channels by using a cleaving knife of the cleaver, so that the LED chip forms independent crystal grains.

The present invention relates to a LED light source comprising at least one layer of light emitting material (3), in particular organic light emitting material, sandwiched between two electrode layers (2, 4). At least one of the electrode layers (2, 4) is structured to form a pattern of electrode segments (5), each electrode segment (5) being in electrical contact with at least three of its nearest neighbor electrode segments (5) via direct electrical connections (6), which are designed to act as electrical fuses between the electrode segments (5). The invention allows the design of a large area LED light source having a homogeneous light density without the risk of failure of larger light emitting areas.

The invention provides an array substrate, a fabrication method thereof and a display device, and belongs to the technical field of display. By the array substrate, the problem that a threshold voltage of a thin film transistor is greatly drifted due to irradiation of an existing organic light emitting device on the thin film transistor can be solved. The array substrate comprises a substrate anda plurality of pixel units, wherein the plurality of pixel units are arranged on the substrate, each pixel unit comprises an organic light emitting device, the organic light emitting device comprisesa first pole, a light emitting layer and a second pole which are sequentially arranged along a direction deviating from the substrate, the material of the first pole comprises a reflection material, aprotruding structure is arranged between the first poles of arbitrary two adjacent organic light emitting devices, and the first pole of each organic light emitting device extends to a side wall of the protruding structure.