64results about How to "Increase the exit angle" patented technology

The invention provides a display panel, a display device and a driving method. A first black matrix is arranged on a light outgoing side of an array substrate, a second black matrix is arranged on a light outgoing side of a colored film substrate, the first black matrix and the second black matrix are arranged at an interval, and an optical device partly positioned in a liquid crystal layer at least is arranged; when two sides of the liquid crystal layer have a voltage difference, the optical device can emergent direction of emergent light and expand emergent angle of incident light, in this way, the voltage difference on the two sides of the liquid crystal layer can be controlled, and gray scale change of the display panel and the display device can be controlled; on one side, a polaroid does not need to be arranged on the outer side of the colored film substrate, so that light energy utilization rate and light emitting efficiency are improved; on the other side, the optical device can realize effect of a liquid crystal lens partly at least, so that thickness of a liquid crystal box is reduced to certain extent, and the light emitting efficiency and the thickness of the liquid crystal box are taken into consideration at the same time.

The invention discloses an inverted mounting LED chip based on double-faced shrinkage pool substrate and component gradual change buffer layer, wherein the chip comprises a sapphire substrate distributed with 102-104 shrinkage pools at upper and lower surfaces, an AlxGa1-xN component gradual change buffer layer composed of an unit layer formed by k non-doping AlxGa1-xN epitaxial materials, a n-type GaN epitaxial layer, an InGaN / GaN multi-quantum well, a p-type GaN layer, a transparent ITO (indium tin oxide) conductive film, an inverted mounting welding electrode and a silicon substrate from upper to lower. The LED chip disclosed by the invention uses the shrinkage pool structure for improving the emergent probability of LED emergent lights, and increasing the heat radiation area and growth stress acting range of the substrate, so that the GaB epitaxial quality and the radiation composite luminous efficiency are improved; the buffer layer of the n-type GaN epitaxial layer is manufactured by the AlxGa1-xN with gradually reduced Al component, so that the light-emitting efficiency and the internal quantum efficiency of the LED are improved, and a relatively high light output power is obtained.

The invention relates to the technical field of display and discloses an organic electroluminescent diode, a display substrate, methods for manufacturing the same, and a display device. A first electrode of the organic electroluminescent diode comprises a reflective conductive layer, the surface near a second electrode of the reflective conductive layer has an uneven structure, and the uneven structure is arranged such that cavities formed between the first electrode and the second electrode are inconsistent in cavity thickness. If there is a microcavity effect, the microcavity effect can be weakened or even eliminated. The uneven structure can scatter light, increase the light exit angle and enhance the light-emitting uniformity of devices. The use of the organic electroluminescent diode can eliminate the viewing angle problem of the display product and ensure the display effect of the display product.

The present invention provides an optical path control structure, a pixel structure and a preparation method thereof, and a display panel, and relates to the technical field of display. The optical control structure comprises a pixel definition layer and a plurality of optical path control units located in an area limited by the pixel definition layer, the at least one optical path control unit inthe plurality of optical path control units comprises a scattering unit, and the scattering unit comprises one or more than one scattering lens, and the scattering lens is configured to perform scattering of incident light. The optical path control structure, the pixel structure and the preparation method thereof, and the display panel can ensure the optical distance of light in the quantum dot layer while reducing the thickness of the quantum dot layer.

The invention provides an optical fiber for increasing a spatial divergence angle of an outputted light beam and homogenizing light spots. The optical fiber comprises a cylindrical optical fiber body the surface of which is equipped with a fiber coating. One end of the optical fiber body is configured in a taper optical fiber structure. The ratio of the end face area of the taper optical fiber structure to the cross sectional area of the cylindrical optical fiber body is between 1 to 1.1 and 1 to 2. The scalloped surface of the taper optical fiber structure is plated with a high-reflective film. One end of the optical fiber configured in a taper structure and the scalloped surface of the taper structure is plated with the high-reflective film. Thus, part of light beam in the optical fiber is continuously reflected along the high-reflective film on the surface of the taper structure in order to increase the divergence angle of the light beam. Therefore, the aggregating effect of the light spots is further dispersed, namely, a purpose of homogenizing light spots is achieved. In addition, light beam mode mixture is achieved.

The embodiment of the present invention discloses a head-worn display device. The head-worn display device comprises an image source; an optical waveguide positioned in the light transmission direction of the image source; and an optical structure positioned in the outgoing light direction of the optical waveguide. The optical structure comprises a first state for changing the outgoing light direction of the optical waveguide and increasing the emergence angle of the outgoing light, and a second state for not changing the outgoing light direction of the optical waveguide. In this way, when the head-worn display device is applied to an enhanced real display, the optical structure is controlled to be in the second state. At this time, the light emitted onto the optical structure is transmitted through the optical structure, so that the transparency of the head-worn display device is improved. The high transparency requirement on the enhanced real display can be met. When the head-worn display device is applied to an enhanced virtual display, the optical structure is controlled to be in the first state. At this time, the light emitted onto the optical structure is refracted through the optical structure, so that the field-of-view of the head-worn display device is expanded. The large field-of-view requirement on the enhanced virtual display can be met.

The invention provides a luminescence diode lamp, which comprises a head cover, a radiator connected with the lower part of the head cover, a heat conductor and a couple of luminescence diode module groups adhibited at the lower end surface of the heat conductor; the radiator comprises a heat conducting cylinder wall and a couple of radiating rectangular fins extending outwards from the heat conducting cylinder wall; the heat radiator is contained inside the heat conducting cylinder wall and is connected with the heat conducting cylinder wall for heat conducting; the lower end surface of the heat conductor forms an inner concave used for being adhibited by the luminescence diode module groups. The air current channels between the radiating rectangular fins are arranged at the peripheral area of the heat conductor, which facilitates air taking away the heat of the radiating rectangular fins by convection from the bottom to top, thus realizing radiating effect. Meanwhile, since the luminescence diode is adhibited on the inner concave of the heat conductor, the emission angle of light is increased.

The invention relates to an LED street lamp lens. An LED bead installation groove is arranged in the bottom of the lens, and the light source incidence plane is a semi-spherical surface; the outer surface of the lens is composed of an irregular convex surface and an irregular concave surface. The universal LED lens is characterized in that two ends of the lens are symmetrical irregular convex surfaces with the curvature gradually decreasing from the two ends to the center, the center of the lens is a symmetrical irregular concave surface with curvature gradually decreasing from the center to the two ends, and the distance from the neck of the LED installation groove to the bottom of the concave surface ranges from 5mm to 8mm. Light emitted from an LED light source is enabled to form an approximately rectangular illumination range through the changeable curvature surfaces, defects that central illumination is over concentrated and light spots are uniform are avoided, illumination uniformity within the effective illumination range can meet requirements of relevant road lighting standards on the uniformity, the illumination uniformity within the illumination range is improved, and meanwhile, higher lens obtaining efficiency can be achieved.

The invention discloses a method for manufacturing a color film substrate. The method comprises the steps that a plurality of separated black matrixes are formed on a substrate, and each black matrix comprises a convex portion and flat portions located at the two sides of the convex portion; a prism film is formed between the convex portions of every two adjacent black matrixes so that the emergent angle of light can be increased after the light passes through the prism films. Through the structural cooperation of the black matrixes and the prism films, the view angle of the color film substrate is effectively increased based on the principle of an optical lens, meanwhile, the light leakage phenomenon of the color film substrate is improved, and the utilization rate of the light and the brightness of the light emitted out of the color film substrate are greatly increased.

The invention discloses LED light source modules, an LED lamp bar and a direct type backlight module. Each LED light source module comprises an LED light source and a bottom plate used for bearing the LED light source, wherein two or more lenses are embedded in the LED light source, and the center lines of the two or more lenses coincide with the center line of the LED light source. According to the technical scheme, the two or more lenses are embedded in each LED light source, so that the light-emitting angle of light rays from the corresponding LED light source module is enlarged, according to the LED lamp bar comprising the multiple LED light source modules, the use number of the LED light sources can be reduced by increasing the distance between every two adjacent LED light source modules, and cost is reduced; the thickness of the direct type backlight module comprising the LED lamp bar is within the range of 15 mm, light rays emitted by the LED light sources are evenly diffused on a diffuser plate, and the purpose of improving the subjective effect is achieved.

The invention provides an LED epitaxial structure and a preparation method thereof. The LED epitaxial structure sequentially comprises a bottom buffer layer, a corrosion cut-off layer, a first type semiconductor layer, an active layer and a second type semiconductor layer from the bottom to the top, wherein the first type semiconductor layer sequentially comprises a first type window layer, a first type limiting layer and a first type waveguide layer from bottom to top, and the first type window layer is a structural layer with gradually-changed Al components. By forming the first type window layer with the gradually changed Al component, the light emitting efficiency of the LED can be improved, and the working voltage of the LED can be reduced.

The invention provides a quantum dot display substrate and a production method thereof and a display device, and belongs to the technical field of display. The quantum dot display substrate comprisesa driving substrate, a driving electrode located on the driving substrate, a light emitting diode connected with the driving electrode, at least two optical medium layers located on a light outlet side of the light emitting diode, and a quantum dot layer located on the light outlet side of the optical medium layers, wherein light outlet surfaces, away from the driving substrate, of the optical medium layers are cambered surfaces, and the refractive indexes of the two optical medium layers decrease gradually in a direction from positions close to the driving substrate to positions away from thedriving substrate. According to the technical scheme, the luminous efficiency of the quantum dot display substrate can be improved.

The invention discloses a display device and a backlight module. The display device comprises a light bar; a light-emitting assembly on the light bar comprises an annular curved light reflecting cover, a light-emitting diode and a lens, wherein the light-emitting diode and the lens are arranged in the light reflecting cover; light emitted by the light-emitting diode passes through the lens, emergent light at the center of the light is deflected towards a large-angle direction, so that the emergent light at each angle is relatively uniform; small-angle light passing through the lens can directly enter a light outgoing side through the opening of the light reflecting cover; and large-angle light passing through the lens can enter the light reflecting cover, and the light is reflected to theopening through the light reflecting cover so as to be emitted to the light outgoing side. Therefore, through the cooperation of the lens and the light reflecting cover, the emergent light of the light-emitting diode can be fully utilized, the light is collected to the greatest extent, and the energy utilization rate of the light is improved; the curvature of the lens and the light reflecting cover can be adjusted, so that the emergent angle of the light can be adjusted; and thus, the energy of an irradiation light spot on the surface of the light outgoing side is relatively uniform, and the light outgoing uniformity of the backlight module is improved.

The invention discloses ion beam deposition equipment for an infrared metal film and a film deposition method. The equipment comprises a wafer loading and unloading cavity and a sputtering cavity, wherein a first high-vacuum isolation valve is arranged between the wafer loading and unloading cavity and the sputtering cavity, the wafer loading and unloading cavity is provided with a vacuum sealingdoor, a pushing rod penetrates through the vacuum sealing door, a workpiece table is arranged at the end, on the inner side of the vacuum sealing door, of the pushing rod, a pushing mechanism used forpushing the pushing rod is arranged on the outer side of the vacuum sealing door, and the wafer loading and unloading cavity is connected with a first vacuumizing device. The film deposition method adopts the equipment to perform film deposition. According to the invention, the wafer loading and unloading cavity is arranged, so that the cavity opening and vacuumizing times of the sputtering cavity can be reduced, the vacuumizing time can be shortened, the productivity can be improved, the vacuum environment can be always kept in the sputtering cavity, the target burning times can be reduced,and the utilization rate of a target material can be improved. The ion beam deposition equipment has the advantages of high productivity, high target material utilization rate and the like, can be widely used for depositing infrared metal films, and has very high use values and application prospects.

The invention discloses a light-emitting diode (LED), a backlight module and a liquid crystal display device. The LED comprises a cavity, a chip is arranged at the bottom of the cavity, four lateral wall surround the bottom of the cavity, two ends of the chip are connected with electrodes, at least one protruded step face is arranged at the positions of two of the opposite lateral walls at the bottom of the cavity, and the electrodes at two ends of the chip extend to the step face from the bottom of the cavity. At least one of the other two lateral walls adjacent to the step face is provided with an inclined face forming an obtuse angle with the bottom of the cavity. The LED can flexibly control scattering range of emergent rays by selecting different included angles of the inclined face, is strong in adaptability and especially suitable for serving as a backlight source of the liquid crystal display device. When light enters in side mode, large emergent angles can enable rays to be evenly emitted into a light guide plate so as to reduce the phenomenon of hot spots.

The invention provides a backlight module and a display device. The backlight module comprises a light-emitting element and a light guide plate; multiple light guide slot regions are arranged at one side, close to the light-emitting element, of a reflecting plane of the light guide plate, each light guide slot region comprises multiple light guide slots, and a positive projection of each light guide slot on the reflective plane is arc, and a bending direction of the arc is towards the light-emitting element; a light ray emitted towards an in-light surface of the light guide plate by the light-emitting element is reflected to an out-light surface of the light guide plate through the light guide slots. An angle of departure of the light ray of the light-emitting element after entering the light guide plate can be increased, a dark area and light mixing distance of the light-emitting element are reduced, thereby reducing lower black edge size of the backlight module, and then reducing thelower black edge size of the entire display device, and realizing lower narrow edge design of the display device; furthermore, the thickness of the light guide plate can be reduced on the basis of guaranteeing that all light rays enter the light guide plate, and the thinner and lighter design is realized.

The invention provides an LED integrated packaging structure, which comprises a substrate, a packaging adhesive groove formed in the upper surface of the substrate, and a microstructure layer arranged on the packaging adhesive groove, wherein a die boding groove array comprising a plurality of die bonding grooves are formed in the packaging adhesive groove, the bottom part of each die bonding groove is provided with an LED chip, a circuit board is further arranged in the packaging adhesive groove, an opening corresponding to the die boding groove array is formed in the circuit board, the LED chips are connected with the circuit board by means of lead wires, and the packaging adhesive groove is further filled with a packaging adhesive layer used for packaging the LED chips, the lead wires and the circuit board. According to the LED integrated packaging structure and a packaging method thereof provided by the invention, the microstructure layer covers the a fluorescent adhesive layer of the integrated packaging structure, and refractive indexes of a protective layer, the fluorescent layer and the microstructure layer are in a descending order, therefore the light emitting efficiency of the integral LED integrated packaging structure can be improved and the emergent angle thereof can be increased by adopting the design.

The invention relates to a light-emitting diode (LED), in particular to an LED packaging structure capable of improving the problem of light spots of a high-power LED. The invention relates to a method for improving the problem of light spots of the high-power LED. Transparent particles with polyhedral structures are distributed in filling glue of the LED packaging structure uniformly and are 2 to 10 percent in weight ratio of the filling glue. The transparent particles are mixed particles of polymethyl methacrylate (PMMA) transparent particles shaped like concave lenses, SiO2 transparent particles shaped like objects with three to eight-faces, and poly carbonate (PC) transparent particles shaped like objects with more than eight faces, wherein the SiO2 transparent particles are 0.6 to 3.7 percent in weight ratio of the filling glue; the PC transparent particles are 0.2 to 2.3 percent in weight ratio of the filling glue; and the PMMA transparent particles are 1.2 to 6.3 percent in weight ratio of the filling glue. The method is used for improving the problem of light spots of the high-power LED.

The embodiment of the invention provides an array substrate, an array substrate manufacturing method and a display panel. The array substrate comprises a pixel definition layer, a light-emitting layerand a transparent light guide layer. The pixel definition layer is provided with a first face and a second face which are oppositely arranged, a plurality of grooves are formed in the first face, andthe angle formed by the extension lines of the side face and the bottom face of the groove ranges from 0 degree to 50 degrees. The light-emitting layer is arranged on the bottom surface of the groove. The transparent light guide layer is filled in the groove and is positioned at the side, far away from the bottom surface of the groove, of the light-emitting layer. The groove is filled with the transparent light guide layer, and after light of the light-emitting layer is refracted by the transparent light guide layer, the emergence angle of the light can be increased. In addition, after the groove is filled with the transparent light guide layer, the problem that the bottom of the groove has an angle and is difficult to package can be solved. After the transparent light guide layer is filled, the leveling performance of material during ink-jet printing can be improved, and a thinning effect is brought to ink-jet printing.

The invention discloses a lens, a light bar, a backlight module and a display device, and relates to the technical field of display devices. The lens is strip-shaped, a light incident surface is formed on a bottom surface of the lens, a light emitting surface is formed on an outer surface of the lens, and a top surface of the lens is a curved surface; and part of light in the lens can be transmitted out from a side surface of the lens after being totally reflected by the curved surface. According to the lens, the light bar, the backlight module and the display device, the bottom surface of thelens is the light incident surface, and the outer surface of the lens is the light emitting surface; and an outer contour of the lens is designed, so that part of the light in the lens is directly transmitted out from the top surface and the side surface of the lens, part of the light is transmitted out from the side surface of the lens after being totally reflected on the top surface of the lens, and the optical distance of the light and the emergent angle of the light can be increased.

The invention relates to a reference and measurement integrated bifunctional photoelectric detector and a detection system. The reference and measurement integrated bifunctional photoelectric detectorcomprises a reference photoelectric detector, a measurement photoelectric detector and a light splitting optical fiber collimator, the reference photoelectric detector is internally provided with a reference gas chamber, and the reference gas chamber is filled with detected gas; the light splitting optical fiber collimator comprises a light incident connector, a parallel light emitting head, a reflected light emitting head and an optical fiber assembly. The parallel light emitting head is connected with the light incident connector and the reflected light emitting head through the optical fiber assembly. The reference photoelectric detector is connected with the parallel light emitting head through a light path, and the measurement photoelectric detector is connected with the reflected light emitting head through a light path. According to the invention, the photoelectric detector with a reference function, the photoelectric detector with a measurement function and the optical splitter with a light splitting function are integrated, so that the volume and the weight of the whole detection system are greatly reduced, the stability and the reliability of gas detection sensitivity are improved, and the cost is greatly reduced.

The invention provides a head-up display device and a driving device, which belong to the technical field of display. The head-up display device of the invention includes a light source, a scanning unit used for scanning the light emitted by the light source to form scanned light, an angle adjustment unit used for expanding the exit angle of the scanned light, a display unit used for forming an image according to the scanned light passing through the angle adjustment unit, and a projection unit used for projecting the image formed on the display unit in a preset area. In the head-up display device of the invention, the angle adjustment unit is added to expand the exit angle of the scanned light formed by the scanning unit, so as to shorten the optical path of the scanned light and to reduce the volume of the head-up display device.

The invention provides an optical film and a display screen. The optical film comprises a substrate, a first optical layer arranged on the substrate and a second optical layer arranged on the first optical layer, the first optical layer comprises a plurality of optical components with at least one protrusion, the optical components are arranged in a separated mode, the protrusions face the side away from the substrate, the second optical layer covers the first optical layer, and the second optical layer covers the second optical layer. The refractive index of the second optical layer is greater than that of the first optical layer; according to the invention, the optical film is arranged to be of the integral structure formed by compounding the first optical layer and the second optical layer, so that the effects of improving the wide-viewing-angle brightness and reducing the reflectivity can be achieved, and the problem that the optical property of a composite film is changed relative to that of a single film does not exist; and the compounding process of the first optical layer and the second optical layer is relatively simple, so that the production cost, the time cost and the labor cost can be effectively reduced.

The embodiment of the invention provides a color conversion assembly, a display panel and a manufacturing method of the color conversion assembly. The color conversion assembly comprises a substrate;a scattering layer which is arranged on the substrate; a light collimation layer which is arranged on one side, far away from the substrate, of the scattering layer, and comprises a plurality of lightcollimation units; a color conversion film which comprises a light barrier layer, a plurality of channels penetrating through the light barrier layer, and color conversion units distributed in at least part of the channels; wherein the light collimation unit is arranged corresponding to the color conversion unit. According to the color conversion assembly, the emergent light of the color conversion unit can be limited within a certain angle through the collimation layer to prevent visual angle color cast, and the emergent light of the substrate can be ensured to have a larger visual angle through the scattering layer to improve the display effect.

The present invention provides a ring-shaped light guide plate comprising an upper surface, a lower surface, an inner wall of an inner periphery of a ring, and an outer wall of an outer periphery of the ring. An incident surface of the ring-shaped light guide plate is formed by the inner wall; and a light-emitting surface of the ring-shaped light guide plate is formed by the outer wall. At least one LED is arranged on the inner wall. At least one circular through hole is formed in the ring-shaped light guide plate; the circular through hole is formed in a light-emitting path direction of the LED and at least one part of light emitted by the LED passes through the circular through hole and then is refracted. Therefore, a problem that non-uniform brightness of different regions on a light strip is caused when an interrupted point light source is employed is solved, so that emitted light becomes uniform. Meanwhile, when light is transmitted in the light guide plate, light losses are reduced because no other absorbing media exist and thus the luminous efficiency is improved, so that energy saving and environmental protection effects are realized, the uniform luminance of emitted lightis high, and the light guide plate resources are utilized reasonably.

The invention discloses an optical imaging lens and imaging equipment, wherein the optical imaging lens sequentially comprises a first group with a negative focal power,a diaphragm, a second group with a positive focal power, a third group with a positive focal powerand a light filter from an object side to an imaging surface along an optical axis; the first group comprises a first lens with negative focal power and a second lens with positive focal power, the object side surface of the first lens is convex surface,the image side surface of the first lens is concave surface, and the image side surface of the second lens is convex surface; the second group comprises a third lens with positive focal power, a fourth lens with positive focal power, a fifth lens with positive focal power, and a sixth lens with negative focal power, the object side surface and the image side surface of the fourth lens are convex surfaces, the object side surface of the fifth lens is convex surface, and the image side surface of the sixth lens is concave surface; the fifth lens and the sixth lens form a bonding body; the third group comprises a seventh lens with positive focal power, and the object side surface and the image side surface of the seventh lens are convex surfaces. The optical imaging lens at least has the advantages of high pixel and small distortion, and has a temperature compensation effect.

The invention discloses a semi-open impeller supercharge structure comprising a back plate, vanes, balance holes and a shaft hole. Curved-surface vanes tilting backwards in the counter-rotation direction are evenly distributed on the outward end of the back plate. One forwardly-recessed surface of each vane is an operating surface, and the other outwardly-projecting surface of each vane is a back surface. An outlet angle beta 2 of each vane is 70 degrees to 90 degrees. An included angle alpha between inner edges of outlets of adjacent vanes on the outer periphery of an impeller is 45 degrees to 60 degrees. The top surface of each vane is a surface tapered at angle theta of 130 degrees to 160 degrees. The backward elevation of each vane is increased to beta 2, the traditional backwardly-bent vanes of a cooling pump impeller are modified into backwardly-tilting bent vanes, the vane shape is modified, lift of a cooling pump compared with the prior art is increased by 7-10% under rated flow, the capacity of outgoing cooling water passing through a waterway is improved, and cooling effect of a diesel engine is directly improved.

The invention discloses a head-mounted display. The pair of glasses comprises a glasses shell, a beam splitter prism and two lens groups, the cross section of the beam splitter prism is an isosceles triangle; each lens group comprises a concave lens and a convex lens; the convex lens is positioned right behind the concave lens; the end, facing the human face, of the glasses shell is a viewing end,the end, away from the human face, of the glasses shell is a projection end, a beam splitter prism and lens sets are sequentially arranged between the projection end and the viewing end, the two lenssets are symmetrically arranged along the perpendicular bisector of the cross section of the beam splitter prism, and the two convex lenses are arranged at the viewing end. According to the invention, the projected video does not need to be recorded and adjusted by professional equipment, the video playing cost is reduced, the universality is relatively high, and the application range of use is expanded; besides, light is directly projected to the retinas of the human eyes through the beam splitter prism and the lens group to form virtual images, people with myopia and hyperopia can also watch the virtual images with naked eyes, and the use experience is improved.