202results about How to "Increase the light output angle" patented technology

The invention discloses an LED (Light Emitting Diode) lamp tube, which comprises a glass tube, lamp caps arranged at two ends of the glass tube as well as an LED lamp strip arranged in the glass tube, wherein the inner wall of the glass tube is coated with a light increasing and heat radiating film; and the LED lamp strip is fixedly adhered to the inner wall of the glass tube through a high heat conduction bonding adhesive. The light increasing and heat radiating film is an aluminum-coated layer, or a frosted heat conduction light increasing adhesive layer or a nano adhesive layer capable of increasing light and radiating heat. The LED lamp strip comprises a substrate, wherein a plurality of LED light sources are welded on the substrate, or an integrated light source consisting of an LED chip is packaged on the substrate; and a driving power supply module is also arranged on the LED lamp strip. According to the LED lamp tube disclosed by the invention, the light emitting efficiency, the light emitting angle and the illumination area of the LED lamp tube are increased; the problems of glare and point light existing in the LED lamp tube are solved; heat generated by an LED is transmitted to the whole glass tube through the substrate of the LED, so that the heat radiating area is greatly increased and the heat increasing speed of the LED lamp tube is increased; the LED lamp tube can be applied to a lamp holder of a traditional fluorescent lamp, and thus the generality of the LED lamp tube is greatly improved; and the replacement and use costs are reduced.

An LED bulb lamp comprises a lamp shell, a lamp head connected with the lamp shell, a core column, conductive supports, LED filaments and cantilever arms, wherein the core column comprises a core column bottom and a core column top which are opposite to each other, the core column bottom is connected with the lamp head, and the conductive supports are connected with the core column top. Each LED filament comprises a filament body and filament electrodes, wherein the filament electrodes are located at the two opposite ends of the filament body, the two filament electrodes are connected with the two conductive supports, the core column is surrounded by the filament bodies, one end of each cantilever arm is connected with the core column, and the other end of each cantilever arm is connected with the corresponding filament body. In the height direction, the distance from the bottom of the lamp shell to the top end of the lamp shell is H, a first height difference ranging from 0 to 1 / 10H exists between every two corresponding filament electrodes, each filament body is bent up and down and has a highest point and a lowest point, a second height difference exists between the highest point and the lowest point, the first height difference is smaller than the second height difference, and the second height difference ranges from 2 / 10H to 4 / 10H. The LED bulb lamp is good in glowing effect, easy to make and large in light emergent angle.

The invention discloses an LED filament. The LED filament comprises multiple LED chips, at least two electrodes and a light conversion layer, wherein the multiple LED chips are electrically connected with the at least two electrodes, the light conversion layer has a top layer and a base layer, the top layer and the base layer are respectively arranged at at least two sides of the multiple LED chips and the at least two electrodes, and parts of the two electrodes are exposed by the light conversion layer. The LED filament is advantaged in that the light conversion layer has a multi-layer layered structure, layered adjustment on hardness, light transmittance and a refractive index can be realized, so hardness, light transmittance and the refractive index of the LED filament can be adjusted to an optimum state, and the LED filament can be made to satisfy different demands of LED bulb lamps.

The invention discloses a large-angle LED (Light Emitting Diode) lens, comprising a main body, wherein the lower end of the main body is provided with an opening, the main body is shell-shaped and is provided with light-incident surfaces and light-emergent surfaces; the light-incident surfaces are symmetrically arranged around the central axis of the main body, and are positioned at the inner sides of the main body; the light-emergent surfaces are arranged at the outer side of the main body; the light-incident surfaces are light-transmitting concave surfaces; the light-emergent surfaces are light-transmitting convex surfaces; the maximum thickness d1 of the lower part of the main body and the minimum thickness d2 of the top part of the main body meet the condition that d1 / d2 is more than 4 and less than 6; the concave depth h1 of each light-transmitting concave surface and the minimum thickness d2 of the top part of the main body meet the relation: h1 is more than 4*d2; and the convex height h2 of the light-transmitting convex surface and the minimum thickness d2 of the top part of the main body meet the relation: h2 is more than 5*d2. The large-angle LED lens disclosed by the invention has the advantages that the light beam angle of the large-angle lens is converted to be larger than 130 degrees so as to realize large-angle illumination and simultaneously improve the illumination uniformity; and due to the design with the light-transmitting concave surfaces and the light-transmitting convex surfaces, the total reflection probability of light is reduced to be lowest, so that the enlarging of the light-emergent angle is ensured, simultaneously, the efficiency of the lens is also enabled to be 90%, and the light utilization rate is furthest increased. The invention also discloses a large-angle light-emergent LED light source module.

An LED chip U-shaped pipe heat-dissipating energy-saving lamp comprises a U-shaped light-emitting heat-dissipating component, a main radiator power source lamp base component and a power source. The U-shaped light-emitting heat-dissipating component comprises a U-shaped dispersing shade, a lamp panel and a U-shaped heat-conducting tube. The U-shaped dispersing shade is bonded with the U-shaped heat-conducting tube, the lamp panel is welded with the power source, and the U-shaped heat-conducting tube is connected with the main radiator power source lamp base component. The invention further discloses a manufacturing method of the LED chip U-shaped pipe heat-dissipating energy-saving lamp. The manufacturing method is characterized by comprising the following steps of locking, welding, lighting testing and gluing. Optical design and special U-shaped heat dissipation design are integrated in the LED chip U-shaped pipe heat-dissipating energy-saving lamp, and the 180-degree light-emitting effect and better heat-dissipating performance are realized.

The invention discloses a display structure for eliminating seams at the edge of a flat panel display. A flexible circuit board is arranged on the upper part of a metal frame and its side surfaces, and the flexible circuit board extends along the inner side of the metal frame to the flat panel display. Inside, and connected with the internal electrical appliances of the flat panel display; the luminous body is fixedly connected to the flexible circuit board located on the upper part of the metal frame, and forms a light strip with this part of the flexible circuit board; on the light strip A lampshade is arranged on the outside; the lampshade is used as the display surface of the display structure, and together with the display area of ​​the flat panel display screen, the original input video image is displayed. Correspondingly, the present invention also provides an integrated structure of multiple flat display screens using the display structure provided by the present invention. The technical solution provided by the invention can significantly integrate the splicing seams during the splicing of flat panel display screens, and truly achieve a "seamless" splicing effect.

The invention discloses a light emitting diode (LED) lamp optical lens, which comprises a collimation lens, wherein the side face of the collimation lens is a total reflection face; a light outlet face of the collimation lens is provided with a sheet lens; the sheet lens consists of concave faces of a plurality of rectangular concave micro lenses; and the collimation lens is provided with a refraction groove at an end plane opposite to the light outlet face of the collimation lens. Through the combination of the collimation lens and the sheet lens, light which passes through the LED lamp optical lens is softened and distributed uniformly and does not glare and the light source illumination range is expanded.

The invention discloses a LED tunnel light. It includes shell and lighting module. The former includes lamp body fixed structure. The latter includes lens shade formed by lens array which formed by astigmatism convex and condense edge. The astigmatism includes light incidence and emergent planes. The lamp body fixed structure includes fixed frame and fixed plated surface. The invention can control the light distribution to make faculae form rectangle, have even illumination in effective area, little or no parasitic light out the area.

The invention relates to a module possessing a light conversion function. An organic silicone rubber is taken as a carrier. An LED phosphor and an organic light diffuser agent are added to form the light conversion module. The module is soft and elastic. A preparation method is characterized by: mixing organic silicon glue, the LED phosphor and the organic light diffuser agent uniformity; injecting into a mould, heating, curing and molding. The module can be used in a blue ray LED light source. The LED phosphor can be excited to glow by the blue ray emitted by the blue ray LED light source, and through reflection, refraction and scattering effects of the organic light diffuser agent, the light of the LED phosphor and the blue ray which is not be absorbed are composited into the white light or the light with other colors. The light color and intensity of the obtained compound light distribute uniformly, and are soft without glare. The compound light can realize the wide-angle light and can be applied in LEC illumination and decorative lamps.

The invention relates to the technical field of liquid crystal display, in particular to a structural improvement on a directly-down-type backlight source, and provides a light source with quantum dots. The light source comprises a substrate, a lamp bar and light mixing bodies arranged around the lamp bar are installed on the substrate, quantum dot stick blocks are arranged at the tops of the light mixing bodies, light emitted by the lamp bar is refracted by the quantum dot stick blocks to go out, and the light outgoing faces of the quantum dot stick blocks are curved surfaces. The invention further provides a manufacturing method of the quantum dot stick blocks and the novel directly-down-type backlight source assembled with the quantum dot stick blocks. According to the light source with the quantum dots, due to the fact that the light outgoing faces of the quantum dot stick blocks are the curved surfaces through the structural improvement on the quantum dot stick blocks, the light diffusion angle formed after the light emitted by the lamp bar passes through the quantum dot stick blocks is increased, and finally the light outgoing angle of the light source is increased.

A light emitting device comprises a light emitting module and a composite lens. The composite lens is arranged above the light emitting module, and the light emitting module includes a first lens unit, a second lens unit, a third lens unit and a fourth lens unit. The first lens unit radiates a first group of lights, which are emitted by the light emitting module, outward from the first lens unit in a total reflection way. The second lens unit radiates a second group of lights, which are emitted by the light emitting module, through the third lens unit and outward from the fourth lens unit in a total reflection way. The third lens unit radiates a third group of lights, which are emitted by the light emitting module, outward from the fourth lens unit in a total reflection way. The fourth lens unit radiates a fourth group of lights, which are emitted by the light emitting module, outward from the fourth lens unit in a total reflection way. Thus, the light emitting angle is improved, thereby providing a light emitting device with high angle light distribution. Besides, the invention also discloses a composite lens.

A luminaire comprises a lamp holder, a first light-emitting module, a second light-emitting module, a light guide, and a lamp cover. The lamp holder has a top portion. The top portion includes a first upper face and a platform projecting upwardly from the first upper face. The platform has a second upper face at a top end thereof. The first light-emitting module is disposed on the first upper face and around the platform. The second light-emitting module is disposed on the second upper face. The light guide is disposed around the platform and on the first light-emitting module. The lamp cover is disposed on the lamp holder for covering the first light-emitting module, the second light-emitting module, and the light guide.

The application discloses a flexible display panel and a display device. The flexible display panel comprises a luminous layer set, a scattering layer arranged on the surface of the luminous layer setand a thin-film packaging layer arranged on the surface of the scattering layer far away from the luminous layer set, wherein the scattering layer comprises an organic material main body and scattering particles doped to the organic material main body. Through the manner, the flexible display panel and the display device in the application can improve the flexibility of the thin-film packaging layer as well as improve the external quantum efficiency.

The invention provides a wide-angle lens used for uniform near-field illumination. The wide-angle lens comprises an inwards concave face, an outwards convex face, a bottom face and a positioning support. The inwards concave face is a light source incident face, is a staged discontinuous curved face and is used for diverging incident light. The outwards convex face is a light emitting face and is determined through distribution of emitted light intensity. The emitted light intensity can be obtained according to the energy conservation formula, and the outwards convex face controls the direction of the emitted light. The bottom face is a reflective face. The lens can effectively increase the light emitting angle of light emitting diodes and improve target surface edge illuminance. By means of the lens, the use number of the light emitting diodes and the distance between the lens and a target surface can be reduced, production cost is reduced to a certain extent, and illuminance uniformity of the target surface can be guaranteed.

The invention discloses light conversion film used in a backlight unit, the backlight unit and display equipment. The backlight module comprises a light source and the light conversion film, wherein the light source emits at least a first kind of light, the light conversion film receives the first kind of light and coverts the first light into at least a second kind of light and transmits out the second kind of light, so that the angle of the emergent light of the backlight unit is larger than 120 degrees, and the color temperature is smaller than 15,000. The light conversion film used in the backlight unit can magnify the angle of view of the display equipment, and can make the luminance angle of view reach 120 degrees or above; meanwhile, the light conversion film has high optical excitation efficiency, the color temperature of the backlight module can be lowered, and the displaying effect is further strengthened.

The invention relates to an LED backlighting structure provided with a converted light source and using a free-form surface reflector, which comprises a backlighting cavity (4) and an LED light source (1), the bottom of the backlighting cavity (4) is a reflecting surface (2) of a free-form surface, the backlighting cavity (4) is a sealed cavity which is composed of the reflecting inner wall thereof, the reflecting surface (2) of the free-form surface at the bottom and a diffuser film (5) arranged on the top thereof, the diffuser film (5) is provided with a brightness enhance film and other optical films and an LCD panel; the LED light source (1) is fixed in the backlighting cavity (4) through a light source support bracket (3) and is positioned below the diffuser film (5) and right above the axis of the reflecting surface (2) of the free-form surface at the bottom of the backlighting cavity (4), and the emergent direction of light deviates from the LCB panel. The structure has the advantages of large light emergent angle of the light source, small thickness of the whole backlighting system and high whole light effect.

The invention discloses an LED (Light Emitting Diode) chip. The LED chip comprises a PSS (Patterned Sapphire Substrate), a buffer layer, an N type semiconductor layer, a luminous layer, a P type semiconductor layer, a transparent conducting layer and a protection layer which are sequentially arranged along the axial direction. The invention also provides an LED chip manufacturing method. According to the LED chip, a groove which leads to the PSS is arranged between an N electrode and a P electrode of the chip, current insulating layers are formed between the N electrode and the P electrode due to the groove, and accordingly gathering of currents between the N electrode and the P electrode is blocked, the LED chip plays a role in blocking the currents, meanwhile the currents transversely expand to other areas, gathering of the currents is reduced, diffusion of the currents is uniform, the thermal stability of the LED chip is improved, and the service life of a device can be prolonged.

The invention provides a reflecting lens, a backlight module using the reflecting lens and a display device, wherein the reflecting lens comprises a lens body having a reverse frustum shape; a larger-area first surface of the lens body is a light-emergent surface; a groove is arranged on the first surface; a first side wall and a second side wall of the groove are opposite to each other; a second surface and two side surfaces are reflecting surfaces; the backlight module comprises a diffuser plate and a light source device; the light source device comprises the reflecting lens provided by the invention and a light source arranged in the groove of the reflecting lens; and the display device provided by the invention comprises the backlight module using the reflecting lens provided by the invention. The reflecting lens provided by the invention can be excellently applied to a straight falling type backlight module as well as a corner type backlight module. The backlight module using the reflecting lens provided by the invention achieves an effect of increasing a light-emergent angle, is matched with a downward illuminating light source and has better light-emergent quality. The backlight module provided by the invention is adopted by the display device provided by the invention, so that the display quality is greatly increased.

The invention discloses an LED (Light Emitting Diode) lens used for a direct type liquid crystal backlight, which comprises a base, a first optical part and a second optical part, wherein the base is provided with a basal surface and a first inner side surface; the first optical part comprises an outer side surface and an inner side surface; the outer side surface comprises a first outer side surface and an outer convex surface connected with the first outer side surface; the inner side surface comprises a second inner side surface and a first top concave surface formed by sinking downwards to the center along the top periphery of the second inner side surface; the second optical part comprises a second outer side surface, a top surface and a top convex surface formed by sinking downwards from the periphery to the center along the top surface; and a sunken second top concave surface is formed at the lower end part of the top convex surface. The LED lens has the advantages that light extraction angle of the lens is large; the light spot is enabled to be bigger and uniform; so that the quantity of the LEDs in the backlight module can be reduced; the interval between a diffuser plate and the LED can be reduced; the thickness of the backlight module can be reduced; the H / D value can be effectively reduced; the backlight is enabled to be lighter; and meanwhile the manufacturing cost can be reduced.

The invention provides an LED (light-emitting diode) lamp filament which comprises a bottom plate, a cover plate, LED chips and an electrode, wherein the LED chips are positioned between the bottom plate and the cover plate, fixed onto the bottom plate, connected in a routing manner and connected with the electrode, and the bottom plate and the cover plate are combined together through an adhesive and are organic transparent plates doped with fluorescent powder. The LED lamp filament has the advantages of peripheral light emission, high light intensity, fine heat diffusivity, long service life, low cost and the like.

The invention provides a display substrate, a display panel and a display device. The display substrate includes a plurality of sub-pixel areas. Each sub-pixel area includes a shading area and openingareas on the two sides. A first transparent electrode is arranged in each sub-pixel area. Each first transparent electrode includes a first electrode unit located in the corresponding shading area. Each first electrode unit includes a plurality of first sub-electrodes. A first slit is arranged between the adjacent first sub-electrodes. The width of the first slits progressively increases in a direction from the centers of the shading areas to the sides where the shading areas and the opening areas are connected to each other. Liquid crystals corresponding to the small slits at the central areas of the shading areas can form large liquid crystal prism curvature, has large deflection angles to light and large light-emitting angles, and ensures light-emitting efficiency. Liquid crystals corresponding to the wide slits at the edge areas can form small liquid crystal prism curvature, has small deflection angles to light and small light-emitting angles, and ensures that the light does not be emitted out of the adjacent sub-pixel areas. The display substrate, the display panel and the display device solve the problem of cross-color.

An LED lamp with a large light emission angle comprises a lamp cap, a bulb shell and a plurality of light source panels. The bulb shell covers the top end of the lamp cap. Each light source panel comprises a substrate and an LED light source arranged on the outer side face of the substrate. The bottom edge of each substrate is fixedly arranged at the top of the lamp cap. An obtuse angle is formed by the outer side face of each substrate and the top of the lamp cap. The substrates are arranged around the axis of the lamp cap by equal angles. The LED lamp with the large light emission angle has the advantages of simple structure and convenience in assembly.

The invention discloses an LED chip and a manufacturing method thereof. The LED chip comprises a substrate, a buffer layer, an N-type GaN layer, a multi-quantum well layer and a P-type GaN layer whichare arranged in turn. The P-type GaN layer is provided with a current barrier layer and a current spreading layer covering the current spreading layer. The current spreading layer is provided with anAl2O3 particle layer. The Al2O3 particle layer, the current spreading layer and the current barrier layer are provided with electrode holes. The LED chip is etched to form steps and the N-type GaN layer is exposed. The Al2O3 particle layer is provided with a P-type electrode. The step surface of the N-type GaN layer is provided with an N-type electrode. The area which is arranged on the upper surface of the LED chip and outside the upper surface of the metal electrode is provided with a transparent insulating layer. The Al2O3 particle layer is arranged between the current spreading layer andthe transparent insulating layer so that the light extraction angle of the chip can be effectively increased and the light extraction efficiency of the chip can be enhanced and the brightness of the LED chip can be enhanced. The Al2O3 particle layer is prepared through the rapid annealing process after evaporation of the Al target material and formation of the pure aluminum layer on the current spreading layer so that the manufacturing method is simple.

The invention relates to the LED packaging technical field, and relates to a quantum dot layer reflection type LED packaging device and a light fixture; a fluorescent glue layer, a heat insulation glue layer, a quantum dot glue layer and an obstruction water oxygen layer are arranged in sequence on the top of the LED chip; the heat insulation glue layer is arranged between the fluorescent glue layer and the quantum dot glue layer so as to protect the quantum dots; the heat insulation glue layer is arranged between the fluorescent glue layer and the quantum dot glue layer, and a reflection material used for reflecting lights is arranged in the quantum dot glue layer; the reflection material can reflect lights so as to improve the LED chip light extraction angle, so the lights can be radiated in the maximum angle; the reflection material can reflect the lights so as to split the central light column, so the lights can be distributed more evenly, thus improving the illumination effect; the light fixture comprises a lamp holder, a lamp pole, a lamp cap and the quantum dot layer reflection type LED packaging device; the light fixture has said advantages when compared with existing lamps.

The invention provides a manufacturing method for a light-emitting diode (LED) lamp strip using sapphire as a chip support. A surface finish sapphire chip is used to replace an insulation layer and a heat sink used in traditional LED chip package, and a surface film pasting method is used for replacing a traditional glue dispensing or glue filling package method. In the LED structure, the sapphire chip is used as a chip module support, an active layer can emit light rays towards all directions almost without loss, and luminous efficiency can be greatly improved. A glue film is manufactured by mixing fluorescent powder and heat conductive insulation paste, the production efficiency is high by coating the fluorescent powder in a film pasting method, the fluorescent powder can be ensured to be coated evenly, light color evenness is guaranteed, and light-emitting efficiency is improved.

The invention discloses a three-dimensional light-emitting diode (LED) light source module, which comprises a base, LED chips arranged on the base, and packaging structures covered on the LED chips, wherein the base is provided with at least two LED chip mounting surfaces, each of the LED chip mounting surfaces faces different directions and is provided with the LED chips, and the cross-section of each of the LED chip mounting surfaces is circumscribed around or inscribed in the same circle. According to the three-dimensional light-emitting diode (LED) light source module, the base is provided with at least two LED chip mounting surfaces facing different directions so that the LED chips on the LED chip mounting surfaces are provided with different light emitting directions, and not only the light emitting angles of the light source module are enlarged, but also the light emitting efficiency of the light source module is improved; and simultaneously, each of the LED chip mounting surfaces is provided with a same circumscribed circle or a same inscribed circle so that the center of the circumscribed circle or the inscribed circle can be used as a rotation point, the mounting surfaces can only be rotated at a certain angle, and the horizontal mounting of the chips on different chip mounting surfaces can be achieved. The invention further discloses a lamp.

The invention discloses a display substrate, a manufacturing method thereof, and a display panel, and belongs to the technical field of display. The display substrate comprises a substrate body and acolor film layer located at one side of the substrate body, wherein a target face of the color film layer is provided with a scattering structure, and the target face comprises at least one face of afirst face and a second face which are opposite to each other. According to the invention, the visual angle of the display panel is improved. The display substrate is used for displaying the image.

The invention discloses an optic element and a lighting device comprising the optic element. The optic element matches with a light emitting diode in combination, thereby working as an illuminating light source. The optic element includes a light-transmitting body including a light guide post and an extending part. The light guide post is provided with a top face and a bottom face. The bottom face is provided with a groove. The extending part extends outward from the periphery of the top face. The tail end of the extending part is provided with a light outgoing face. The light emitting diode is arranged in the groove and emits light beams to the optic element. The extending part guides the light and enlarges the outgoing angle of the light beams.

The invention discloses a flip LED chip, which comprises a substrate, a light-emitting structure arranged on the surface of the substrate, a light-emitting film layer disposed on the back surface of the substrate, and phosphor and a packaging glue arranged on the light-emitting film layer, wherein the refractive index of the packaging glue is smaller than that of the light-emitting film layer, therefractive index of the light-emitting film layer is smaller than that of the substrate, the light transmittance of the light-emitting film layer is greater than 90%, and multiple holes are arrangedin the light-emitting film layer. Correspondingly, the invention also provides a flip LED chip making method. Through mutual match among the substrate, the light-emitting film layer and the packagingglue, by using different light refractive indexes and the holes in the light-emitting film layer, total reflection of the substrate is reduced, more light is induced to the light-emitting film layer,and besides, the holes in the light-emitting film layer can allow more light to overflow from the light-emitting film layer, the light-emitting efficiency of the chip is increased, and the chip brightness is improved.