46results about How to "Guaranteed light output" patented technology

The invention discloses a metal substrate and a light-emitting diode (LED) encapsulation method of the metal substrate. The encapsulation method comprises the following steps: stamping a lens installation slot, a fluorescent powder coating slot and an electrode pad on the metal substrate, forming an insulating layer on the substrate, adopting the silk screen printing method to form a eutectic solder pad, a reflecting metal layer, a lead and a metal solder pad; then performing eutectic welding of a chip on the metal substrate; adding fluorescent powder, sending the metal substrate in an oven to solidify fluorescent powder; installing a lens, injecting adhesive, sending the metal substrate in the oven for solidifying; and cutting the circuit board to obtain a high power LED encapsulated by the substrate. The invention provides the metal substrate and the LED encapsulation method of the metal substrate; and the encapsulation technology of the metal substrate adopts the stamping technology and the silk screen printing technology so that the accuracy of patterns on the substrate can be ensured and the material cost can be saved.

The invention discloses a display panel and a preparation method thereof. The display panel comprises a substrate, a first electrode layer, a light-emitting layer, a pixel definition layer, a second electrode layer and an auxiliary electrode layer, wherein the pixel definition layer comprises a retaining wall and an opening area, the pixel definition layer and the light emitting layer are coveredby the second electrode layer, the auxiliary electrode layer is arranged on the second electrode layer, and the orthographic projection of the auxiliary electrode layer on the substrate completely falls into the orthographic projection of the retaining wall on the substrate. According to the display panel, the problem that the resistance of the second electrode layer is too large can be solved, and the light emitting rate of the display panel can be guaranteed. According to the preparation method of the display panel, by adjusting the thickness of the pixel definition layer, the transfer printing can be directly achieved while a patterned transfer printing film layer is formed, and the manufacturing process is simplified.

The invention is applicable to the field of illumination technologies and provides an LED support. The LED support comprises a metal substrate and a plastic reflection cup arranged on the metal substrate. A protruding box dam for installation of an LED chip is arranged in a region defined by the plastic reflection cup. The box dam and the plastic reflection cup are integrally formed. The depth of the box dam is one-third to three times the thickness of the LED chip. The opening angle of each set of opposite inner side faces of the box dam is smaller than 120 degrees. Because the plastic reflection cup and the box dam are integrally formed on the metal substrate, the procedures are reduced, the production efficiency is improved, the LED support is not prone to deformation and stripping, the binding force between the plastic reflection cup and the metal substrate is enhanced, and the reliability of the LED chip is improved; the depth of the box dam is designed to be one-third to three times the thickness of the LED chip, and the opening angle of each set of opposite inner side faces of the box dam is limited below 120 degrees, so the side faces are prevented from absorbing light, the normal light emergence of the obverse sides is guaranteed, and the luminous efficiency is improved.

The invention discloses an LED underground lamp. The LED underground lamp comprises a lamp box. The lamp box is divided into two layers, the upper end of the lamp box is a mounting cavity, and the lower end of the lamp box is an electric cavity. A sealing plate is arranged on the top of a lamp body assembly. A spring is mounted at the bottom of the lamp body assembly. The bottom of the spring is fixedly connected with the bottom face of the mounting cavity, and the top of the spring is fixedly connected with the lower end face of the lamp body assembly. One or more circles of stepped faces are arranged on the inner wall of the opening end of the upper end of the lamp box. An automatic cleaning mechanism is arranged in the lamp box. The automatic cleaning mechanism is extruded when the sealing plate descends, water is drained through water outlet holes in the stepped faces, and the end face of the outer side of the sealing plate is cleaned. By the adoption of the LED underground lamp, the sealing plate can descend when a non-motor vehicle travels, tires of the non-motor vehicle are in contact with the stepped faces of the lamp box, the situation that the water is accumulated on the sealing plate and sliding is caused is solved effectively, the use is safer, the automatic cleaning is achieved through extrusion, the cleanness of an upper end panel is guaranteed, and the light extracting rate is guaranteed.

The invention discloses an LED automotive dipped headlight comprising a supporting shell, a concave lens, an LED installation base plate, a heat radiator and a plurality of LED light sources, wherein the LED light sources are arranged on the LED installation base plate; the concave lens and the LED installation base plate are connected with the supporting shell; the concave lens is positioned on a light-emitting port of the supporting shell; each LED light source is independently positioned in a reflection cup; LED emergent rays of the reflection cups are parallel to central axes of the LED light sources and emitted to a focal point of the concave lens, which is positioned at the outer side of the supporting shell; and the heat radiator is connected with the LED installation base plate.

The invention discloses an AMOLED display panel and a preparation method thereof, and relates to the technical field of display. The AMOLED display panel comprises a substrate, a light emitting layerand a cathode layer are arranged at one side of the substrate respectively, the side, far from the substrate, of the cathode layer is provided with a transparent conductive film, and the transparent conductive film is connected with the cathode layer in parallel. Thus, a current channel is enlarged via electrical connection between the transparent conductive film layer and the cathode layer, the cathode resistance is reduced, voltage drop in the side far from an integrated circuit is reduced, and the brightness of the display panel is more uniform.

The electronic ballast used for high intensity gas discharge lamp consists of: a combined type circuit for correcting single-stage power factor and generating low frequency square wave signal, a voltage and current testing circui, a constant power control circuit. The voltage and current testing signal obtained from low frequency square wave circuit is inputted into the constant power control circuit to generate a switch-driving signal with a certain pulse width. The constlant power inputted to the lamp is controlled through controlling the duty radio of high frequency switch in the single-stage power factor correction circuit.

The invention is applied to the field of lighting technologies, relates to an LED packaging support and an LED luminophor and provides an LED support. The LED support comprises a metal substrate provided with a sink bowl, a plastic layer is attached to the inner side face of the sink bowl, the plastic layer extends towards the periphery of the sink bowl to form the bowl edge, and the perpendicular distance from the upper surface of the bowl edge to the bottom of the bowl is one third to three times the thickness of a chip. The field angle of each set of opposite inner side faces of the plastic layer is smaller than 60 degrees. The LED support further comprises a plastic outer packaging piece, a reflector cup is formed on the metal substrate, and the reflector cup and the plastic layer are integrally molded. According to the LED support, the sink bowl is integrally molded on the metal substrate directly, so procedures are saved, and the production efficiency is improved; the depth of the plastic bowl is designed to be one third to three times the thickness of the chip, the field angle of the inner side faces is limited to be 60 degrees, so side face light absorption of the chip can be avoided, obverse side normal light emission can be guaranteed, and the luminous efficiency of an LED is improved; the plastic layer is arranged on the surface of the bowl, so depth and angle setting is facilitated; the reflector cup and the plastic layer are integrally molded, so the reliability of the LED is improved.

The invention provides a backlight module of a display device, which comprises a back plate, a reflecting cover, a backlight source, a reflecting plate, a light guide plate and a rubber frame. The reflecting cover is arranged on the back plate, the backlight source is disposed on the reflecting cover, the reflecting plate is disposed on the back plate, the light guide plate is disposed on the reflecting plate, the rubber frame is respectively connected with the back plate and the light guide plate, light emitted from the backlight source is reflected by the reflecting cover to enter the light guide plate, the reflecting cover comprises a reflecting portion, an abutting portion and a carrying portion, the abutting portion is connected with the reflecting portion, the carrying portion is connected to the abutting portion, the abutting portion is abutted onto the back plate, the backlight source is mounted on the carrying portion, and the carrying portion is disposed on the back plate. The reflecting cover of the backlight module of the display device replaces a manually attached reflecting surface, the problem of low manual attachment yield is avoided, integrity of reflection of the light of the backlight source is guaranteed, and a thermal conduction effect of the backlight source is improved while luminous efficiency of the light guide plate is further guaranteed.

The invention discloses heat-conducting, flame-retarding and explosion-proof paint for a lamp tube of an emergency lamp. The heat-conducting, flame-retarding and explosion-proof paint is prepared from the following raw materials in parts by weight: 4 to 8 parts of decabromodiphenyl ethane, 4 to 6 parts of aluminum hydroxide, 3 to 5 parts of white carbon black, 8 to 10 parts of crystal whiskers, 0.5 to 1.5 parts of graphene, 20 to 30 parts of epoxy resin, 4 to 6 parts of a coupling agent, 15 to 25 parts of vinyl silicone oil, 5 to 7 parts of silicon carbide micro-particles, 4 to 6 parts of gamma-aluminum oxide, 10 to 20 parts of liquid rubber, 4 to 6 parts of rare-earth oxide, 5 to 15 parts of a processing auxiliary agent and 25 to 35 parts of a solvent. The heat-conducting, flame-retarding and explosion-proof paint disclosed by the invention has relatively good thermal conductivity, relatively high light transmittance, good flame-retarding property and chemical stability; the paint can be coated on the surface of the lamp tube of the emergency lamp and one layer of protection film is formed after the paint is cured, so that the light emitting efficiency of the lamp tube and the heat dissipation requirements can be ensured and a glass lamp shell is prevented from falling off or bursting at high temperature; meanwhile, a preparation method provided by the invention has the advantages that the cost of the materials is relatively low, the raw materials are easy to obtain and a process is simple, so that the preparation method has relatively high application value and a good application prospect.

The invention discloses a display panel and a display device. The display panel comprises a substrate, a light emitting unit on the substrate, and a packaging layer which is positioned on one side, far away from the substrate, of the light-emitting unit, wherein the packaging layer comprises a first inorganic film layer, a first auxiliary film layer and an organic film layer which are stacked on the light emitting unit, an absolute value of the difference between a refractive index of the first inorganic film layer and a refractive index of the first auxiliary film layer is smaller than or equal to 0.05, and an extinction coefficient of the first auxiliary film layer to visible light is smaller than that of the first inorganic film layer to visible light. The display panel is advantaged inthat the display effect of the display panel can be improved on the premise of ensuring the light emitting quantity of the display panel.

The invention relates to a packaging structure, a display panel and a preparation method thereof, wherein the packaging structure comprises a cover plate substrate and a titanium dioxide composite film layer arranged on the cover plate substrate, and the titanium dioxide composite film layer is a porous titanium dioxide film loaded with a drying material. The packaging structure and the display panel not only can protect the light-emitting device from being influenced by the ultraviolet light, but also do not influence the light emitting of the light-emitting device.

The invention discloses an underground lamp, which comprises a lamp body part embedded in the ground and a sealing device installed on the upper end of the lamp body part to seal the entire lamp body part, the sealing device includes an annular groove and a sealing cover movably installed in the annular groove, the sealing cover includes a sealing ring and a sealing panel arranged on the top of the sealing ring, the sealing panel is movably connected with the sealing ring through a rotating structure, and the sealing ring is integrally sealed Insert it into the annular groove of the housing. The buried lamp of the present invention pulls up the entire sealing panel to dissipate heat and ventilate the inside of the lamp body, and after pulling up, the sealing panel can be turned over to clean the front and back of the sealing panel in all directions to ensure the uniformity of light output and the light output rate .

The invention discloses an LED fluorescent lamp with a large light emitting angle, and belongs to the technical field of LED illumination lamps. The LED fluorescent lamp comprises an optically designed lamp cover, and a lamp holder with a circularly arched cross section, wherein the lamp cover and the lamp holder are buckled to take a cylindrical shape; a lamp tube inner hole forms an accommodating space; an aluminum baseplate clamping groove, a bar-shaped aluminum baseplate, a light emitting module, a barb, a lamp cover clamping groove and a heat dissipating aluminum piece are arranged in the accommodating space; the splayed heat dissipating aluminum piece is connected to the two ends of the aluminum baseplate clamping groove; the aluminum baseplate clamping groove and the heat dissipating aluminum piece are connected as an integrated structure; the inclination of the heat dissipating aluminum piece is within 180-240 degrees; and the radian of the lamp cover is larger than the radian of the lamp holder. Light rays are fully reflected and diffused through the specially designed lamp cover, so that the light emitting rate reaches 94%; the light emitting angle reaches 180-240 degrees through the heat dissipating aluminum piece with adjustable inclination angle; and the LED fluorescent lamp with the large light emitting angle improves the scattering efficiency, increases the light emitting angle of the light rays, reduces the irradiation dead angle, and enhances the light emitting strength and uniformity of the lamp cover.

The invention relates to the technical field of light source heat dissipation, in particular to an air cooling LED light source device. The air cooling LED light source device comprises a mounting frame for supporting an optical lens module and a PCB in sequence from top to bottom; an LED element for emitting light is borne on the PCB; the mounting frame is provided with an air cooling heat dissipating device for locking the PCB and achieving a heat conducting effect; multiple heat dissipating fins for transferring and dissipating heat are mounted in a cavity; and gaps are formed between two adjacent heat dissipating fins for circulating air. The air cooling LED light source device achieves a heat dissipating effect of an LED light source through an air cooling mode; and through the cooling mode, the stable light effect outputting of the LED light source is guaranteed, the heat dissipating space needed by products can be reduced, and the mechanism mounting space is saved.

The invention discloses a dam displacement monitoring method, which is characterized in that laser emitted by a laser emission module is irradiated on a coding target screen, an imaging module acquires an image on the coding target screen and transmits the image to a data processing unit, and the data processing unit receives the image, reads the code of the position of the laser on the image, carries out data analysis on the code, identifies to obtain the coordinate data of the position of the laser, and judges whether the dam has a displacement phenomenon according to the coordinate data. According to the invention, the settlement of the dam body can be automatically and accurately measured, and the method is small in manual operation workload, high in measurement speed, high in efficiency and small in external environment.