32results about How to "Reduce the number of particles" patented technology

The invention provides an optical film, a backlight module and a display device, which belong to the technical field of display. Wherein, the optical film includes a plurality of optical units, each of which includes: a first transparent electrode; a second transparent electrode; A capsule; a plurality of polar particles located in the capsule; wherein, under the action of an electric field between the first transparent electrode and the second transparent electrode, the plurality of polar particles can be in the first state and Switching between a second state, in the first state, the plurality of polar particles are randomly distributed in the capsule, and in the second state, the plurality of polar particles gather on the surface of the capsule. The technical solution of the present invention enables the side-entry backlight module to realize local dimming effect.

The invention discloses a lamp component and a loudspeaker box. The lamp component comprises a PCB (Printed Circuit Board), LED (Light Emitting Diode) lamps and a light guide ring; the PCB is arrangedabove the light guide ring; the LED lamp is arranged on the face, facing the light guide ring, of the PCB; light emergent holes are formed in the PCB; the light guide ring is a hollow ring; the lightguide ring comprises a first light emergent face, a second light emergent face, an incident face, a reflecting face and a bottom face which are connected in sequence; the first light emergent face islocated on the outer circumference of the light guide ring; the second light emergent face is arranged oppositely to the bottom face and faces the PCB; the incident face and the reflecting face are located on the inner circumference of the light guide ring; LED lamps are opposite to the incident face; and light rays, incident upon the light guide ring, of the LED lamps can exit from the first light emergent face and the second light emergent face. According to the lamp component and the loudspeaker box disclosed by the invention, the LED lamps are arranged on the PCB in an inversion manner; the LED lamps no longer need to be arranged at different positions, and different PCBs are no longer needed to control the LED lamps at different positions to emit light, so that the number of the PCBsand the number of the LED lamps can be reduced.

A light emitting stick having LED chips (9) is disclosed. The light emitting stick comprises a strip shaped frame (7), a circuit board (8) and a plurality of LED chips (9). The upper part of the frame has a groove (701), and the lower part of the frame has a plurilty of vertical holes (702). The top of each of the vertical holes (702) and the bottom of the groove (701) are feedthrough. A negative pole plate (11) is placed on the upper surface of the circuit board (8), and has a plurality of throughholes (111). The position of the throughholes (111) corresponds to the position of the vertical holes (702). The circuit board (8) has a pluralityof positive pole pads (12). The positive pole pads (12) are exposed from the throughholes (111) on the negative pole plate (11), respectively. The bottom surface of the frame (7) bonds to the negative pole plate (11). The LED chips (9) are embedded into the vertical holes (702) of the frame (7), respectively. The positive terminal wires (902) of the LED chips (9) are connected to the positive terminal wires (902) of the positive pole pad (12) one by one, and the negative terminal wires (901)of the LED chips (9) are connected to the negative pole plate (11) of the circuit board (8) one by one. The inner walls of the groove (701) form reflective walls.

The invention discloses an LED lamp, comprising a lamp holder body, a lamp body main part and a fastener. At least two clipping strips are provided at the bottom of the lamp holder body at an interval, a clasp is provided on each clipping strip, a fixing hole is provided at the bottom of the lamp holder body, a connection portion is provided at a central position of the lamp body main part, a first punch, holding holes and assembly holes matched the clipping strips are provided in the connection portion, the positions of the fixing hole and the first punch are staggered, the holding holes are communicated with the assembly holes, and an aperture of the holding holes is larger than an aperture of the assembly holes; the slipping strips are stretched into the holding holes, the lamp holder body or the lamp body main part is rotated, the clipping strips are screwed into the assembly holes after rotation, the clasps are tightly hooked at the bottom side surface of the connection portion, such that the lamp holder body and the lamp body main part are relatively fixed. The position of the fixing hole corresponds to the position of the first punch in the vertical direction, the fastener is tightly locked in the fixing hole after passing through the first punch, and the lamp holder body and the lamp body main part are fixed and connected together.

The invention discloses a method for tracking an efficiency extreme point of an electric vehicle wireless charging pile in frequency bifurcation, wherein particle swarm sizes in a general particle swarm algorithm are separated respectively as a maximum particle swarm size Nmax=30 and a minimum particle swarm size Nmin=2; and with the increase of the number of iterations, the particle swarm sizes are gradually reduced in the operation of the algorithm, thus simplifying the algorithm and quickening the convergence rate of the algorithm at the later stage. By adopting the particle swarm algorithm in the invention, the selection of the particle swarm sizes are evidence-based, thus the convergence rate is quickened and the searching time is reduced at the later stage of search.

The present invention relates to the technical field of LED lamp control. The present invention provides a serial display system and a data transmission method thereof, comprising: the first drive chip receives a data frame composed of n sets of display data and one set of shared control data; Starting from the first driver chip, the first driver chip extracts its corresponding display data and shared control data from the data frame, and sends the data frame composed of shared control data and other display data to the second driver chip, thus In the process of sequentially executing to the nth driver chip according to the step-by-step series method; in the process of sequentially executing to the n-th driver chip according to the step-by-step series method, each driver chip is controlled according to its corresponding display data and shared control data. The LED lights connected to it are displayed. By using the same control data, it only needs to transmit the control data once. On the basis of not reducing the number of cascaded chips in the series system, the same control function of the series drive chip is realized.

The invention relates to the technical field of backlight diffuser plates, and concretely relates to a manufacturing method of mirror reflection net dots and a diffuser plate. The method includes the following steps: crushing a silver reflection sheet into silver reflection powder, mixing the silver reflection powder with glue to form silver reflection paste, printing the silver reflection paste on the surface of a diffuser plate to form net dots, and baking the diffuser plate so that the net dots are cured and cooled naturally. The beneficial effects are as follows: the processing scale is large, processing is convenient and fast, costs are reduced, and the processed net dots are not liable to shed and exhibit better firmness; and direct illumination-type and thin-type backlight of an LED light source emitting light from four sides is realized, LED lamp distances are increased, the number of LEDs is reduced, LED shades are shielded, and the net dots exhibit higher backlight extraction efficiency.

The invention provides a method for decreasing the number of impurity particulates in the bumping metal layer sputtering process in the semiconductor packaging field. The method comprises the steps that (1) a microwave power supply and a radio-frequency power supply are turned on, and plasma etching is carried out on the surface of a wafer and the surface of a metal pad; (2) a sputtering machine carries out metal layer sputtering on the wafer; (3) the controlled upper limit parameter of the number of the particulates is set, and the sputtering machine is halted to clear the inner wall of a plasma etching cavity once the number of the particulates exceeds the controlled upper limit parameter. The metal layer sputtering process in the step (2) comprises a normal procedure and a plasma etching clearing procedure. By adopting the technical scheme, the number of the particulates is decreased, and the service life of the plasma etching cavity is prolonged, so that the maintenance frequency is reduced, and the labor cost and material cost are lowered; the generation rate of the impurity particulates in the bumping metal layer sputtering process is decreased by 60%, and the productivity of the sputtering machine is improved by 150%.

The invention provides a backlight module and a display device utilizing the same. The backlight module comprises a diffusion plate as well as a light source device and a first reflection plate, wherein the light source device is arranged between the diffusion plate and the first reflection plate, a light emitting surface of the light source device faces towards the first reflection plate, and the light transmitted by the light source device is reflected by the first reflection plate to the diffusion plate. The display device utilizing the backlight module comprises the backlight module. Due to the adoption of the backlight module, light spots with non-uniformity in brightness can be prevented from being formed on the front surface of the diffusion plate, so that the quantity of light emitting diode (LED) lamps used in the traditional direct-type backlight module can be reduced, or the overall thickness of the backlight module can be reduced, and an effect for utilizing an optical lens in the traditional direct-type backlight module can be realized under the situation that no optical lens is used. The display device utilizes the backlight module, so that the display quality is greatly improved.