82results about How to "Uniform luminous effect" patented technology

The invention discloses a hydro-thermal preparation method for spherical boric acid yttrium doped europium fluorescent powder in a hollow structure. 0.01 to 1.0 mole/liter yttrium ions, europium ions and boric acid are mixed, the mole ratio of the yttrium ions to the europium ions to the boric acid in the mixed solution is 19/1/20, organic topography induction reagents are added into the mixed solution, the ratio of the mol number of the added organic topography induction reagents to the sum of the mol number of the yttrium ions and the europium ions is 3/2, 1 to 8 milliliters of nucleating reagents are added into the mixed solution, and suspending liquid is obtained; the alkali liquor is used for regulating the pH to be 8 to 10; the suspending liquid is moved into a 100mL reaction kettlefor carrying out hydrothermal reaction; and the heat treatment is carried out on powder products after the hydrothermal reaction, and the spherical fluorescent powder in the hollow structure is obtained. The spherical boric acid yttrium doped europium fluorescent powder has the smaller specific gravity because of the adoption of the hollow structure, and requirements of luminescent devices on light weight of fluorescent luminescent materials can be met.

The invention provides a film coating source and a vacuum film coating device thereof which can carry out even evaporation on a base plate with a large area. The film coating source is provided with a container part, a heating device, an evaporation airflow adjusting part and an evaporation coating top plate, wherein the evaporation airflow adjusting part is in a porous layered structure and is used for controlling the direction and distribution of the evaporation airflow; and evenly distributed jet orifices are arranged on the evaporation coating top plate and used for jetting the evaporation airflow. By the airflow adjusting part of the porous layered structure, the invention furthest enlarges the evaporation coating area of the evaporation coating top plate, and enables the material to be deposited on the surface of the base plate as evenly as possible, thereby achieving the effect of evaporation with high evenness in a large area. When the invention is used for carrying out vacuum film coating of organic materials on an organic light-emitting diode (OLED), especially for carrying out film coating on the base plate with a larger area, a film coating layer with good pattern accuracy and even film thickness can be obtained, thereby ensuring even luminescent properties and color balance of the OLED.

An entire lighting flexible neon light strip includes a flexible core line, a plurality of LED illuminants arranged in the core line as well as a flexible light dispersing layer uniformly coated outside the core line; transverse holes are uniformly arranged on the core line in a spacing way; the LED illuminants are arranged in the transverse holes; a longitudinal hole penetrating all the transverse holes is arranged in the core line; a longitudinal cut is arranged on the longitudinal hole; a protection resistance and a lamp base connection line are arranged in the longitudinal hole by the longitudinal cut; in the invention, the protection resistance is arranged in the longitudinal hole deviating from the axis of the core line and is misplaced with the LED illuminants. Compared with the prior art, the defects of low light extraction efficiency and having shadows of the illuminants are avoided; the beams given out by the LED illuminants are dispersed to a solid space after being dispersed by the light dispersing layer and entirely lights by 360 degrees, thereby improving the light extraction efficiency of the illuminants and leading the light extraction efficiency of the illuminants to be more uniform and continuous.

A luminous keyboard includes plural key structures, a switch circuit board, a supporting plate, a backlight module and plural ring-shaped structures. The switch circuit board is located under the keycaps of the key structures. The supporting plate is located under the switch circuit board and connected with the key structures. The backlight module is located under the supporting plate. The backlight module generates a light beam. The plural ring-shaped structure are disposed on the switch circuit board and arranged around the corresponding key structures. When the light beam is reflected by the key structures, the light beam is received by the plural ring-shaped structure. Due to the material properties of the ring-shaped structures, the periphery regions of the keycaps generate a uniform luminous effect.

The invention relates to energy-saving lamp fluorescent powder which consists of a component A, a component B and a component C, wherein the component A consists of Y2O3, BaCO3, MgO and MoO3 by weight; the component B consists of Sb2O3, CaF2, BaO.Al2O3 and SrCO3; and the component C consists of CaHPO4, Na2B4O7 and Y2O3. The energy-saving lamp fluorescent powder provided by the invention is uniform in luminous effect, high in luminous stability and high in luminous strength during use, and the luminous flux of the manufactured energy-saving lamp can be 75lm/w. Moreover, the processing method of the fluorescent powder is simple, dry gas protection is used in the processing process and during subsequent treatment, the drying step is eliminated, and the processing time consumption is low.

The invention relates to a liquid-crystal display television, a backlight module and a manufacturing method thereof. The manufacturing method of the backlight module comprises the steps that an LED flip chip is fixed to a carrier plate; a photic adhesive is applied around the LED flip chip, and an adhesive layer is formed around the LED flip chip; transparent film fits the LED flip chip, and the transparent film is arranged to be opposite to the carrier plate; a light blocking layer directly facing the LED flip chip is spread on the transparent film so as to form a luminous body; the luminousbody is attached to a backing plate. According to the manufacturing method, light emitted by the LED flip chip is mostly spread to the side face, and the effect that on the condition that no lens exists, and the light comes to a diffusion plate to achieve uniform glowing is achieved; finally, the luminous body is attached to the backing plate. Due to the fact that the lens does not need to be installed on the backing module obtained through the backing module manufacturing method, the overall thickness of the backing module is thinner.

The invention provides a manufacturing technology of a LED lamp strip capable of emitting light from the two sides. The manufacturing technology comprises the following steps that a two-sided substrate is provided, wherein the two-sided substrate comprises a first layer, second layers located on the two sides of the first layer and third layers located on the outer sides of the second layers and arranged at an equal interval; a plurality of crystal fixing grooves are formed in the two-sided substrate. Compared with the prior art, the LED lamp strip capable of emitting light from the two sides is simple in technology and better and evener in light emitting effect.

The invention relates to a light guide fixing assembly for a vehicle lamp, the vehicle lamp and a vehicle. The light guide fixing assembly comprises a main lining frame (1), a light guide (2) and a front lining frame (3), a light guide containing groove (7) is formed in the main lining frame (1), and the light guide (2) is mounted on the light guide containing groove (7) and comprises a first ribpart (21) and a second rib part (22) which extend on the whole length of the light guide (2) and radially relatively protrude out. The front lining frame (3) is fixed to the main lining frame (1) andcovers the partial outer surface of the light guide (2), a first gap (4) and a second gap (5) are formed between the main lining frame (1) and the front lining frame (3), and the first rib part (21) and the second rib part (22) of the light guide (2) are clamped into the first gap (4) and the second gap (5) correspondingly. According to the light guide fixing assembly, when the light guide (2) isturned on, light emitting uniformity can be kept on the whole length of the light guide (2), and the part material cost and the man-hour cost in the assembly process are reduced.

The invention provides a backlight module, which has a light-emitting element and a light guide plate. The light guide plate has a light entry surface; the light-emitting element is arranged at one side corresponding to the light entry surface of the light guide plate to provide light which enters the light guide plate from the light entry surface; the light travels in the light guide plate to provide uniform light-emitting effect. A plurality of micro-structures are arranged on the light entry surface, with each micro-structure having a micro-structure depth; the light guide plate is provided with a thickness of a plate body; the ratio of the depth of the micro-structure to the thickness of the plate body is between 0.003 and 0.0625 in essence.

The invention relates to the technical field of refrigeration equipment, particularly to a luminous shelf assembly for a refrigerator and the refrigerator. The luminous shelf assembly for the refrigerator provided by the invention is arranged in a refrigeration chamber of the refrigerator, and comprises a luminous shelf and an electric connector electrically connected with the luminous shelf, wherein the luminous shelf is manufactured from an electroluminescent material; the whole surface of the luminous shelf can uniformly give out light after the luminous shelf is energized, edge bright bands are avoided, brightness of all corners in the refrigeration chamber of the refrigerator is uniform, and user experience is improved; besides, the luminous material can give out light through frequency control, heat is not generated, and the heat preservation effect and luminous effect of the refrigerator are guaranteed; the electric connector comprises a male end terminal and a female end terminal which are in fit socket connection; one of the male end terminal and the female end terminal is arranged on the luminous shelf, and the other of the male end terminal and the female end terminal isarranged on the refrigeration chamber of the refrigerator; and the luminous shelf is in socket connection with the female end terminal through the male end terminal, so that detachable connection with the refrigeration chamber is achieved, cleaning is convenient, and sanitary and utilization effects are guaranteed.

The invention relates to a novel LED filament which comprises one or more filament base plates. The novel LED filament is characterized in that the each filament base plate comprises two or more sections of base plate bodies which are mutually connected sequentially, each base plate body is provided with two opposite luminous surfaces, the luminous surfaces of the adjacent base plate bodies are twisted with the extending direction of the filament base plates as the axis, and LED luminous elements are arranged on the luminous surfaces. According to the LED filament structure, heat dissipating is facilitated, the multiple luminous surfaces in the different directions are formed, thus the LED filament can give out light at multiple angles, and the more even and all-round luminous effect is achieved; and the LED luminous elements on multiple filaments can also be arranged in multiple electrical connection modes, the LED luminous elements of different colors can be arranged, and thus the multiple luminous effects are controlled.

The invention discloses a method for improving the manufacturing yield of an LED chip. The method comprises the steps: firstly carrying out the growth of a wafer epitaxial layer, then carrying out thecorrosion of a second highly-doped pGaP window layer to form an exposed region, and then depositing an oxide film; and then evaporating an ITO film on the surface of the epitaxial layer, continuouslymanufacturing a P-surface electrode and an N-surface electrode, finally evaporating a protective film on the surface of the P-surface electrode, then performing cutting, ultrasonically removing the protective film through hot water after cutting, and finally cleaning and expanding the film of the chip to form independent single core particles. According to the method, preparation of the LED chipis effectively achieved, the light-emitting effect of the chip is improved, MgF2/CaF2 films alternately grow on the surface of the wafer, the light-emitting surface is smooth, the problems that in thecutting process, a diamond knife makes direct contact with an ITO film, and corner breakage, cracks and the like are likely to be generated are solved, the product quality and reliability are greatlyimproved, chippings and water stain and dirt residues in the cutting process are avoided, the product appearance yield is increased, and high practicability is achieved.

The invention relates to the field of automobile lamps, and provides a lamp and a headlamp. The lamp comprises a first module, a second module and a control unit. The first module comprises a first light guiding strip and a first light source used for transmitting light rays into the first light guiding strip. The second module comprises second light guiding strips and second light sources used for transmitting light rays into the second light guiding strips. One end of each second light guiding strip is adjacent to the middle portion of the first light guiding strip, the included angle between the first light guiding strip and each second light guiding strip ranges from 42 degrees to 90 degrees, and each of the first light guiding strip and the second light guiding strips comprises a rearsurface with reflection lines and a smooth front surface, and accordingly the rear surfaces can reflect out the light rays from the front surfaces. The control unit is electrically connected with thefirst light source and the second light sources, and accordingly, the lamp is switched between a daytime lamp mode and a position lamp mode by adjusting the grading value of the first light source and the grading value of the second light sources. After the lamp is powered on, the uniform light emitting effect similar to the T shape can be achieved, and the attractiveness of the lamp is improved.