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

The invention relates to a dedicated wide-angle light-distribution lens for LEDs (light-emitting diode). The lens is a rotating body, which comprises an incident plane and an exit plane, wherein a concave pit with the inner curved surface thereof being a rotary surface formed by rotating a smooth curve is arranged on the incident plane of the LED lens, the top part of the curved surface is in smooth transition and the LED is arranged in the concave pit; the exit plane is particularly a rotary surface in smooth transition; and the center of the LED lens is particularly a concave plane gradually bulging in outward transition and bending downwards at the edge. The invention solves the problem of light spots in LED illumination and achieves the application of illumination-grade high-power LEDs as light sources in the illumination of even surfaces; and the invention ensures the stable LED single-lamp performance, reduces the number of the LED single-lamp and ensures the long service life and good reliability of the system.

The invention relates to the technical field of LED lamp control and provides a series-connection display system and a data transmission method thereof. The data transmission method includes that a first driving chip receives a data frame formed by n groups of display data and one group of shared control data; starting from the first driving chip, the first driving chip extracts the display data and the shared control data at the corresponding level and corresponding to the first driving chip from the data frame, a data frame formed by the shared control data and the rest display data is sent to a second driving chip, and execution till an nth driving chip is performed sequentially according to a level-to-level series connection mode; in the process of sequentially executing till the nth driving chip according to the level-to-level series connection mode, each driving chip controls an LED lamp connected with the corresponding driving chip for display according to the display data and the shared control data at the corresponding level and corresponding to each driving chip. the control data which are identical are used, and the control data need to be transmitted for only once, so that identical control functions of series-connection driving chips are realized on the basis that number of cascaded chips of a series-connection system is not reduced.

An ion implantation system (500) comprising an ion source (502) that generates an ion beam (504) along a beam path (505, 507) a mass analyzer component (514) downstream of the ion source that performs mass analysis and angle correction on the ion beam, a resolving aperture (516) electrode comprising at least one electrode downstream of the mass analyzer component (514) and along the beam path having a size and shape according to a selected mass resolution and a beam envelope, a deflection element (518) downstream of the resolving aperture electrode that changes the path of the ion beam (507) exiting the deflection element, a deceleration electrode (519) downstream of the deflection element that decelerates the ion beam, a support platform within an end station (526) for retaining and positioning a workpiece (522) which is implanted with charged ions, and wherein the end station is mounted approximately eight degrees counterclockwise so that the deflected ion beam is perpendicular to the workpiece.

The invention provides a diffusion plate and a direct type backlight module. The diffusion plate is provided with a first groove at a light incoming side of a second structure layer and a second groove or a third protruding portion at a light outgoing side of the second structure layer and sets a first structure layer, the second structure layer and a third structure layer to be sequentially increased in reflective index, thereby being capable of significantly improving a divergence angle of incident light, and achieving the uniformity of backlight brightness. The direct type backlight modulecontains the diffusion plate. The diffusion plate has excellent diffusion effect for the light, so that a problem of lamp shadow can be solved while the number of LED lamps and the light mixing distance are reduced, thereby realizing low cost and ultrathin design of the direct type backlight module, and being conductive to achieving the application of the direct type backlight module in the fieldof ultrathin TVs.

The invention discloses a novel structure LED all-direction bulb lamp. The novel structure LED all-direction bulb lamp comprises a shell. The bottom of the shell is connected with a lamp holder. A heat dissipation piece is embedded in the shell. A PCB is arranged in the heat dissipation piece. An LED substrate comprises an LED chip. The negative electrode and the positive electrode of the LED substrate are connected to the PCB through solder paste via reflow soldering. A plurality of LED lamp beads are distributed on the circumference of the LED substrate. A bulb shell is arranged outside the LED substrate and made of PC, and the bulb shell is evenly filled with a dispersing agent. The dispersing agent is a kind of scattering particles, and the scattering particles are isotropous homogeneous small balls with the diameter of about 2 microns-10 microns. The invention further discloses an achieving method of the novel structure LED all-direction bulb lamp. The novel structure LED all-direction bulb lamp has the beneficial effects that the structure is simple, the manufacturing cost is low, and the production efficiency is high; and the labor intensity is low, the light transmittance is high, energy is saved, and the American Energy Star Standard is met.

The invention provides an optical film, a backlight module and a display device, and belongs to the technical field of display. The optical film comprises a plurality of optical units. Each optical unit comprises a first transparent electrode, a second transparent electrode, a capsule which is located in an electric field range between the first transparent electrode and the second transparent electrode, and 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 the polar particles can be switched between a first state and a second state; in the first state, the plurality of the polar particles are randomly distributed in the capsule; and in the second state, the plurality of the polar particles are gathered on the surface of the capsule. According to the technical scheme, the lateral backlight module can be enabled to achieve a local dimming effect.

The invention discloses a mobile robot indoor positioning mapping method based on multi-sensor fusion, and the method comprises the steps: carrying out the data fusion of a laser radar, an inertial measurement unit (IMU) and a wheel type odometer, building a robot motion model based on the fusion of the odometer and the IMU, optimizing a suggested distribution function through employing a laser radar observation information fusion motion model, and achieving the positioning mapping of a robot. The problems of large system prediction distribution error and particle memory explosion are solved;a novel particle resampling strategy method is given, the particle diversity is kept, the particle dissipation problem is relieved, and the mapping efficiency and the mapping precision are obviously improved.

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.

This invention relates to one light bar with light diode transistor, which comprises long bar shape frame, circuit board, several light diode transistor, wherein, the frame top part has level concaved tank and down part with several vertical holes with each hole connected to concaved tank bottom; the circuit board top surface is paved with cathode weld board with several holes relative to the vertical holes; the circuit board has several anode weld panel each weld disc exposed by cathode weld board; the frame bottom is fixed to the cathode board with each diode transistor imbedded into vertical hole of frame.

The invention provides an anti-explosion LED (light emitting diode) lamp with strong heat dissipation performance. The anti-explosion LED lamp comprises a power supply cavity for arranging a power supply, wherein the power supply cavity is a sealed space, one end of the power supply cavity is connected with a lamp cap, and the other end of the power supply cavity is connected with a heat dissipater; LED chips are directly encapsulated on the top surface of the heat dissipater; a lampshade is mounted on the edge of the top surface; an insulation layer, a circuit layer and a protection layer are arranged around the LED chips in sequence; the insulation layer is tightly attached to the top surface of the heat dissipater; the circuit layer is arranged on the insulation layer; the protection layer covers the circuit layer. The LED chips are directly encapsulated on the heat dissipater, so that heat generated by the LED chips is directly transferred to the heat dissipater and is subjected to heat exchange with air through the heat dissipater; a heat dissipation structure is simple, and a chip encapsulation base and a circuit mounting plate are not needed, so that a middle component between the LED chips and the heat dissipater is eliminated, heat dissipation of the heat of the LED chips is facilitated, and the heat dissipation performance is improved.

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.

The invention discloses an LED street lamp with an LED lamp bead combination lens. The LED street lamp comprises a heat dissipation main body, a driving power source, a light source PCB and a connecting cable. The back surface of the heat dissipation main body is provided with a power source cavity back cover. A power source cavity matched with the driving power source is formed between the power source cavity back cover and the heat dissipation main body. A power source cavity waterproof rubber ring is arranged on the power source cavity. The front surface of the heat dissipation main body is provided with the combination optical lens which is formed by an optical PC material through injection molding. The combination optical lens is formed by combining a plurality of peanut-shaped lenses. Each peanut-shaped lens corresponds to one or more LED lamp beads. A light source cavity matched with the light source PCB is formed between the combination optical lens and the heat dissipation main body. A borrow hole used for arranging the connecting cable in a penetrating mode is formed between the power source cavity and the light source cavity. According to the LED street lamp with the LED lamp bead combination lens, the waterproof performance and the lighting effect are good; the energy saving effect is better; assembling and material preparing are easier and more convenient; the luminous efficiency is high; the customer selectivity is high; the life of the whole LED street lamp is long; and the lighting effect on the road surface is good.

The invention relates to the field of backlight modules, and discloses a side-entry backlight module with protection covers. The side-entry backlight module comprises a light guide plate, a light bar and protection covers, wherein the light bar comprises multiple light sources, one light source is provided with one protection cover, the protection covers are fixedly arranged on the light bar, the light source is arranged in the corresponding protection cover, one end, away from the light bar, of the protection cover is provided with a light outlet, and one end, having the light outlet, of the protection cover is tightly attached to the light incident surface of the light guide plate. The side-entry backlight module with protection covers, disclosed by the invention, can be easily arranged on the light incident surface of the LGP (light guide plate), and can effectively separate a LED component from the LGP, and the protection covers can transmit light emitted from the LED component to the light incident surface of the LGP in high energy efficiency moe, and improve the light-emitting curve of the LED component.

The invention discloses a processing system for decreasing the viscose particle number in a spinning technology, and relates to the technical field of viscose filament spinning equipment in textile industry. The processing system comprises a xanthating machine, a rough grinding machine, a dissolving barrel, a dissolving barrel internal circulation device and a dissolving barrel external circulation device; xanthated viscose is subjected to rough grinding through the coarse grinding machine, large viscose balls are finely ground, and then the finely-ground viscose enters the dissolving barrel; the viscose is subjected to fine grinding through the dissolving barrel internal circulation device; the viscose is ground through the dissolving barrel external circulation device, and small particles in the viscose are subjected to fine grinding. Neither blocking of filter material filtering pore channels nor blocking of spinning nozzles can be caused. The problems that due to the fact that blocking of the spinning nozzles is caused, viscose blocks are formed, and rolls are wound by broken filaments are avoided.

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 processing system for decreasing the viscose particle number in a spinning technology, and relates to the technical field of viscose filament spinning equipment in textile industry. The processing system comprises a xanthating machine, a rough grinding machine, a dissolving barrel, a dissolving barrel internal circulation device and a dissolving barrel external circulation device; xanthated viscose is subjected to rough grinding through the coarse grinding machine, large viscose balls are finely ground, and then the finely-ground viscose enters the dissolving barrel; the viscose is subjected to fine grinding through the dissolving barrel internal circulation device; the viscose is ground through the dissolving barrel external circulation device, and small particles in the viscose are subjected to fine grinding. Neither blocking of filter material filtering pore channels nor blocking of spinning nozzles can be caused. The problems that due to the fact that blocking of the spinning nozzles is caused, viscose blocks are formed, and rolls are wound by broken filaments are avoided.

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 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 present invention relates to an LED light emitting device comprising a backlight module. The backlight module comprises an LED light source and a light guiding plate. The device further comprisesa light guiding column, and the light guiding column comprises an incident surface for receiving a light beam, a bottom surface connected to the incident surface, and an exit surface opposite to the bottom surface. The bottom surface is provided with a network spot structure for converting an incident light beam into parallel light to send the parallel light out, the light guiding column is arranged on a light incident side of the light guiding plate, and the light exit surface faces the light guiding plate. The LED light source is corresponding to the incident surface of the light guiding column, the light beam emitted by the LED light source enters into the light guiding column from the incident surface, and after the network spot structure converts the incident light beam into the parallel light, the parallel light is emitted into the light incident side of the light guiding plate from the exit surface. The LED light emitting device has the advantages of reasonable design, simple structure and good uniformity of light entering the light guiding plate, the incident light of the backlight module is uniform, a poor Hotspot phenomenon can be eliminated, the design difficulty of light guiding plate network spots is reduced, the number of LEDs is reduced, and the cost is reduced.

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 discloses a lens. The lens includes a top surface and a bottom surface disposed oppositely, and side walls for connecting the top surface and the bottom surface; the bottom surface is located on the side, facing a lamp panel, of the lens, and light emitting diode chips are placed between the bottom surface and the lamp panel; the cross-sectional profiles of the side walls in any plane parallel to the bottom surface include four arc-shaped sections which are connected end to end in turn, the center of the cross-sectional profile and intersection points of two adjacent arc-shaped sections are connected into a line as a first straight line, and an included angle between the first straight line and tangent lines of the arc-shaped sections is smaller than a critical internal totalreflection angle of the lens; the bottom surface is a light incident surface, and the side walls are light emitting surfaces. The invention also discloses a backlight module and a liquid crystal display device. According to the lens, brightness of emitted lights is in a square distribution, brightness of lights in an overlapping area of the adjacent light emitting diode chips is relatively large,and the number of the light emitting diode chips to be used in the same area is small, thereby reducing production and maintenance costs of the backlight module.

The high-brightness thinned miniled backlight structure comprises a back plate, a PDLC dimming film is arranged in the back plate, the PDLC dimming film comprises two PET base materials and a refraction layer, the refraction layer is located between the two PET base materials, an ITO conductive circuit is arranged on the side, close to the refraction layer, of each PET base material, and the ITO conductive circuit is arranged on the other side, close to the refraction layer, of each PET base material. The refraction layer comprises a polymer and a liquid crystal, the number of the PDLC light adjusting films is two, and a transparent isolating film is arranged between the two PDLC light adjusting films. According to the high-brightness thinned miniled backlight structure, the PDLC light adjusting films are adopted to replace a plurality of structural diffusion films in backlight, the product thickness can be greatly reduced, the thinned requirement of the product is met, and the high-brightness thinned miniled backlight structure is suitable for large-scale popularization and application. Meanwhile, the number of materials is reduced, backlight assembly is facilitated, LED arrangement pitches can be added in ultrathin products, the number of LEDs is reduced, and the problems that the layout space of a lamp panel is insufficient and the layout space of a PCB is insufficient are solved.

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 three-dimensional dynamic simulation method and system for a hazardous chemical substance diffusion process. The three-dimensional dynamic simulation method comprises the following steps: acquiring diffusion data of a hazardous chemical substance for diffusion visualization; generating a three-dimensional terrain scene according to the digital elevation image and the digital remote sensing image of the target area; calculating attributes of all particles of the current frame; drawing particles according to the attributes of all particles of the current frame to obtain a diffusion form of the current frame, wherein the calculation of the attributes of all particles of the current frame comprises the following steps: obtaining the position information of each particle in the three-dimensional terrain scene according to the position information of each position point in the diffusion data; and obtaining the color or color transparency of the corresponding particle in the current frame according to the concentration / thickness information of each position point in the diffusion data at the sampling moment. According to the invention, the concentration / thickness of the hazardous chemical substance can be visually displayed, the diffusion process can be interactively controlled, the pollution diffusion conditions of all moments and all areas can be comprehensively known, and auxiliary decision support is provided for accident emergency disposal.

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.

The invention provides a backlight module. The backlight module comprises a light source module, a plurality of light guide bars and a plurality of scattering parts, wherein the light source module isused for emitting a plurality of dot lights; each light guide bar contains one incident side and an outgoing side, the incident side is aligned with the corresponding dot light in the light source module so as to convert the dot light into linear light; and the scattering parts are arranged on the outgoing side of the light guide bars and used for making the light guided out from the light guidebars irradiate to the outside, wherein the plurality of light guide bars are arranged in parallel at intervals along a first direction.