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 discloses an LED (light-emitting diode) lamp glass lamp shell heat-conducting and explosion-proof coating material and a preparation method thereof. The coating material is prepared from a component A and a component B, wherein the component A is prepared from modified graphene, vinyl base silicone oil and a catalyst; the component B is prepared from vinyl base silicone oil, vinyl base silicone resin, hydrogen-containing silicone oil, an inhibitor and a tackifier. The heat-conducting and explosion-proof coating material provided by the invention can be used for coating the surface of an LED lamp glass lamp shell, a layer of protection film is formed after curing, and cracking after the glass lamp shell falls off is prevented, so that the phenomenon that a non-insulated electrified part or an internal connecting wire can be contacted, or mechanical insulation of internal parts of equipment is damaged is avoided.

An organic light-emitting diode display panel comprises a substrate, a pixel definition layer, an anode layer, a light-emitting layer, an electron transmission layer, a cathode layer and a reflectionlayer. The cathode layer is arranged on the electron transport layer and has two different thicknesses. The reflection layer is arranged on the cathode layer and is used for improving the light emitting rate. The beneficial effects of the invention are as follows: according to the invention, by adopting a novel evaporation process, the cathode layer in the display panel is divided into a first cathode layer and a second cathode layer; the first cathode layer is arranged right above the pixel layer; the thickness of the first cathode layer is smaller than that of the second cathode layer; the power consumption of the display panel is reduced while the light extraction rate of the organic light-emitting diode display panel is guaranteed; and in addition, the reflection layer is further deposited on the first cathode layer and the second cathode layer, so the light extraction rate is improved.

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 aims to provide a display panel and a preparation method thereof and a display device. The display panel comprises: a display substrate, wherein the display substrate comprises a plurality of pixel units, and each pixel unit is provided with a light emitting side; and a light distribution layer arranged on the display substrate and located on the light emitting sides of the pixel units, wherein the light distribution layer comprises a plurality of lenses, the lenses correspond to the pixel units, and the orthographic projection area of each lens on the display substrate is smaller than the area of the corresponding pixel unit. According to the display panel, the light distribution layer is additionally arranged on the light emitting side of the display substrate, and the technical scheme that the micro lens is achieved through the photoetching method is adopted, so that the requirement for mass production can be met, and the visual angle, the brightness, the color cast and the like of the display panel can be effectively improved.

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 discloses a flip light-emitting diode chip and a preparation method thereof, and belongs to the field of light-emitting diode manufacturing. A corrosion cut-off layer is added between a p-type layer and a Bragg reflector, and a first accommodating groove and a second accommodating groove extend to the corrosion cut-off layer. The addition of the corrosion cut-off layer prevents the formation of the first accommodating groove and the second accommodating groove on the Bragg reflector from affecting the p-type layer, and ensures the surface quality of the p-type layer. The first accommodating groove and the second accommodating groove provide a covering space for the first insulating protection layer, and wrap a part of the Bragg reflector in the first insulating protection layer for protection, and then a first through hole and a second through hole are formed in the surface of the first insulating protection layer. When the first through hole and the second through hole are formed, the Bragg reflector covered by the first insulation protection layer is not affected, the quality of the Bragg reflector is effectively protected, and light emitting of the Bragg reflector and the light emitting efficiency of the flip light-emitting diode chip are guaranteed.

The invention relates to an organic light emitting display device. The display device comprises a substrate, an organic light emitting device which is formed on the substrate and a packaging cover plate which is arranged on the light emergent side of the organic light emitting device. The packaging cover plate is provided with multiple light transmitting areas and light absorbing areas which are arranged among the light transmitting areas. The light transmitting areas and the light absorbing areas are not mutually overlapped, and the position of each light transmitting area on the packaging cover plate is corresponding to the position of the organic light emitting device so that the organic light emitting device is enabled to emit light through the light transmitting areas, and the light absorbing areas absorb light of which the wavelength range is within 380nm-780nm. According to the organic light emitting display device, the brightness performance and the contrast performance of the display device can be greatly balanced on the whole so that the overall display effect can be improved.

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 LED packaging substrate comprises an LED bottom plate, a packaging frame, a metal cooling fin, an LED wafer and fluorescent powder, the metal cooling fin is arranged at the bottom of the LED bottom plate, first grooves are formed in the LED bottom plate at equal intervals, second grooves are formed in the metal cooling fin at equal intervals, the packaging frame is assembled at the top of the LED bottom plate, and the LED wafer is arranged in the packaging frame. According to the LED packaging structure, the second groove and the first groove which are formed in the LED bottom plate and the metal radiator are used in cooperation, the filling effect of heat dissipation silicone grease can be improved, the heat dissipation effect of the LED packaging structure is improved, the heat dissipation efficiency is improved, and the service life of the LED packaging structure is prolonged. And the fluorescent powder arranged in the silica gel layer is matched with the light holes for use, so that the influence of silica gel aging on the light emitting rate can be reduced, and the light transmittance of equipment can be kept.

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 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 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.

The invention discloses a mask device for cathode ring repair and its application method. The mask device includes a mask, and the mask includes a display area shielding part, a hollow part and a reinforcing rib, and the hollow part passes through The reinforcing rib is connected to the periphery of the display area shielding part. The mask device of the present invention is used for shielding protection when the cathode ring is repaired, preventing the repair material of the cathode ring from entering the display area of ​​the device and affecting the photoelectric performance of the device such as brightness and display uniformity, and avoiding the use of sputtering to prepare metal oxidation. The black spot defects caused by the material transparent conductive protective layer can be used to achieve cathode ring protection by using various PVD processes such as sputtering and evaporation, which ensures the light output and process compatibility of the device to the greatest extent.

The embodiment of the invention discloses a display panel, a display device and a manufacturing method of the display panel. A display panel, comprising: at least one light emitting diode chip, the light emitting diode chip including a first electrode and a first semiconductor layer stacked; a conductive layer located on a side of the light emitting diode chip away from the first electrode; the The conductive layer is in contact with the first semiconductor layer; the conductive layer includes a hollow part, and along the thickness direction of the first semiconductor layer, the projection of the hollow part on the conductive layer is the same as that of the first electrode on the The projections on the conductive layer overlap. The embodiments of the present invention achieve the effect of reducing the resistance of the current conduction layer with relatively low process difficulty on the basis of ensuring the light extraction rate of the display panel.

The invention discloses an LED multi-side lighting planer light source which comprises an LED array, an optical lens array, a condensing, diffusing and transmitting board and a transparent integral support plate. The LED array consists of multiple LEDs in arrangement. Each non-imaging secondary optical lens comprises an upper concave lens portion, a lower concave lens portion, four angles of refraction and reflection, four edges of refraction and reflection and four internal vertical sides; the four angles of the refraction and reflection of the optical lens are in rectangular arrangement, the four edges of refraction and reflection of the optical lens are arranged on four sides of the rectangle, the four internal vertical sides and the concave lens consisting of the upper concave lens portion and the lower concave lens are disposed in the middle of the rectangle, and the LEDs are disposed in the lower portion of the space formed by the four internal vertical sides of the optical lens. The LED multi-side lighting planer light source has the advantages of simple structure, small size, capability of reflecting a little light to the back, and good light intensity and uniformity within the total lighting area.

A backlight module for a display device, including: a back panel (2), a reflection shade (5) provided on the back panel (2), a backlight light source (6) provided on the reflection shade (5), a reflection plate (7) provided on the back panel (2), a light guide plate (8) provided on the reflection plate (7), and a glue frame (9) connected to the back panel (2) and the light guide plate (8) respectively. The light rays emitted by the backlight light source (6) are reflected into the light guide plate (8) through the reflection shade (5). The reflection shade (5) includes a reflection part (52), an abutting part (54) connected to the reflection part (52), and a connection part (56) connected to the abutting part (54). The abutting part (54) abuts onto the back panel (2). The backlight light source (6) is installed on the connection part (56). The connection part (56) is provided on the back panel (2). The backlight module for a display device replaces the manual adhesion of a reflection surface with the provision of a reflection shade (5), which avoids the problem of manual adhesive yield, ensures the integrity of the light ray reflection of the backlight light source (6), and further ensures the light out-coupling efficiency of the light guide plate (8) while improving the heat conduction effect of the backlight light source (6).