30 results about "LED display" patented technology

The invention relates to an LED pixel correction coefficient uploading method of an LED display screen, which comprises the following steps: converting a plurality of LED pixel correction coefficients of the LED display screen into a plurality of correction image data, wherein each LED pixel correction coefficient comprises a plurality of correction information, and each correction image data comprise one or a plurality of correction information of part or all of the LED pixel correction coefficients; conveying the correction image data to a video interface, electrically connected with the LED display screen, of the control system of the LED display screen, and analyzing the LED pixel correction coefficients of the LED display screen from the correction image data through the LED display screen control system for saving. The method has the advantages that correction coefficients are converted into correction image data, and the correction image data are uploaded through the video interface, so that the uploading speed of the correction coefficients is increased.

The present invention provides for placement of an LED device on a carrier through the use of a pick-and-place tool. The tool conducts electricity at a rate sufficient to prevent charge buildup but not at so high a rate as to overload the LED being placed.

The invention discloses an LED display screen control system and a control method thereof. The LED display screen control system comprises a master control system and a display system which are in communication connection by a data line. The master control system has multiple signal input ends, a data setting input end and multiple signal output ends. Video sources are in communication connectionto the master control system through the signal input ends. A user terminal is in communication connection to the master control system through the data setting input end. The display system includesdisplay modules integrated with video processing circuits. Every two display modules directly transmit video signals through the video processing circuit. The LED display screen control system basically consists of a video conversion device and modules capable of directly processing video data, so that the control connection of the LED display screen is simpler and more convenient.

The invention provides an electronic pressure controller, comprising a box body component and a flexible joint which are mutually and fixedly connected. Flow valve assemblies capable of oppositely and axially moving are arranged inside the box body component and the flexible joint; an inducting circuit board assembly and a main control circuit board assembly are fixed on the box body component (6); the inducting circuit board assembly is internally provided with a Hall switch and a pressure sensor; the main control circuit board is internally provided with an LED and a control button; and the electronic pressure controller can be conveniently installed by using a threaded clamping ring and a rubber gasket which are arranged in the flexible joint. The invention has the advantages that the flexible joint is convenient to install and the pressure sensor can accurately display pressure change of a water pump system through an LED display panel; a user can autonomously set the starting pressure through the LED display; a control circuit adopts a singlechip circuit, can be additionally provided with other functions according to the requirements of customers without changing the design of the circuit board; and the service of the water pump system can be prolonged by the temperature control protection.

The invention discloses a multi-station surface grinding machine. The multi-station surface grinding machine comprises a grinding machine body, a grinding table, a working table and a vertical column,wherein a slide rail is arranged at the top of the grinding machine body; the grinding table is arranged at the upper end of the slide rail; a hollow cavity is formed in the grinding table; the vertical column is arranged at one end of the top of the grinding machine body; an LED display screen is connected to the top of the vertical column through a connection frame; a small camera is connectedto the lower end of one side of the vertical column through a bolt; a side plate is arranged at the upper end of one side of the vertical column; an electric hydraulic cylinder is connected to the bottom of the side plate through a connection seat; an output shaft of the electric hydraulic cylinder is connected with a grinding wheel frame; a grinding wheel is installed at the bottom of the grinding wheel frame through an installation element; the working table is arranged at one side of the grinding machine body; and a first station and a second station are formed at one side of the working table. The multi-station surface grinding machine is provided with a plurality of stations, facilitates to carry out workpiece cutting, drilling and grinding simultaneously, and is various in function,convenient to use, and suitable for being popularized and used.

The invention relates to a lantern decorative lighting integrating with a redundancy fault-tolerance drive control chip, comprising a hose lamp, a framework, an upper supporting part and a lower supporting part. The framework is connected to the upper supporting part and the lower supporting part; the hose lamp is arranged on the framework; the upper supporting part and the lower supporting part are butterfly-shaped framework disks in multijaw shapes and are respectively provided with an upper adjusting connecting rod and a lower adjusting connecting rod; the hose tube is internally provided with a luminescence unit which comprises a PCB; at least one decorative lighting transmission driving control chip, at least one LED, a power supply anode line, a power supply cathode line and at least two signal control line transmission circuits are arranged on the PCB; the decorative lighting transmission driving control chip on the PCB is the redundancy fault-tolerance drive control chip which is provided with at least two parallel signal control line transmission channels; the transmission channels are connected by a line; control signals are input into the redundancy fault-tolerance drive control chip through the circuit; and the redundancy fault-tolerance drive control chip directly drives and controls an LED display unit on the PCB to illuminate.

The invention discloses a quantum dot flexible LED display device and a preparation method thereof. The quantum dot flexible LED display device comprises a flexible backboard, a flexible substrate anda packaging layer, the packaging layer is arranged between the flexible backboard and the flexible substrate, an LED chip array is arranged on the flexible backboard, the flexible substrate comprisesa second flexible substrate body, and separation walls are arranged on the second flexible substrate body; and the packaging layer covers and wraps the LED chip array and the separation walls, the separation walls are arranged in a surrounding mode to form a matrix cavity array, and the matrix cavity array is arranged above the LED chip array in a matched mode. The flexible backboard is in butt joint with the flexible substrate, the packaging layer is arranged between the flexible backboard and the flexible substrate, the water-oxygen barrier property of a light conversion layer is improved through the barrier effect of the packaging layer, and the service life of the display device is prolonged; and meanwhile, scattered light emitted by the LED chips is shielded by matching with the separation walls, so that the phenomenon that blue light emitted by the LED chips is diffused to adjacent pixel units is effectively limited, and the problems of blue light leakage and light crosstalk arereduced.

The invention relates to the technical field of LED display screen manufacturing, in particular to a die-casting forming mold and die-casting forming technology of a bottom shell of an LED display screen module. The mold comprises a front mold assembly and a rear mold assembly, wherein the parting surface of the rear mold assembly is provided with a rear mold casting forming area, a feeding runner and discharging main runners communicating with the rear mold casting forming area; the feeding runner comprises a feeding main runner and a plurality of feeding auxiliary runners which communicates a transverse runner region of the feeding main runner with the rear mold casting forming area and are located in the same plane with the feeding main runner; the parting surface of the front mold assembly is provided with a front mold forming area; and a die-casting forming cavity is formed between the front mold forming area and the rear mold casting forming area. According to the die-casting forming mold and die-casting forming technology of the bottom shell of the LED display screen module, the mold can ensure the stability of the flatness and the accuracy of the thickness of a casting product, the size stability of a finished product of the casting can be improved, and the use amount of die-casting raw materials and the yield of the waste are reduced; and meanwhile, due to the fact that the process steps of the forming technology are few, the manufacturing cost of the casting is greatly reduced.

The invention relates to an abnormal lamp point processing method after the correction of an LED display device, comprising the steps of: (a) obtaining correction coefficients of a plurality of LED lamp points of a target LED display device; (b) searching for LED lamp points having correction coefficients meeting preset conditions among the plurality of LED lamp points to be used as abnormal lamp points; (c) highlighting selected abnormal lamp points on the target LED display device and lightening a plurality of peripheral LED lamp points of a selected abnormal lamp point, wherein the selected abnormal lamp point is at least one from the searched abnormal lamp points in step (b); (d) determining whether the highlighted selected abnormal lamp points are real abnormal lamp points based on human vision, and adjusting correction coefficients of the selected abnormal lamp points to be a target correction coefficient if the highlighted selected abnormal lamp points are real abnormal lamp points; and (e) storing the adjusted correction coefficients of the selected abnormal lamp points to a target position. Accordingly, the abnormal lamp point processing method can more rapidly search for positions of abnormal lamp points, and improve abnormal lamp point processing precision.

The invention discloses an automatic display system and method of LED display screens and belongs to a device and method for controlling the LED display screens. The system comprises an information center, more than one hardware processors and a series of LED display screens. The information center analyzes received display information and sends the information to the corresponding hardware processor according to the content of the information; according to the read parameter information of a target LED display screen, the hardware processor converts the display information into a format required by the LED display screen and send the display information to the LED display screen for display. The automatic display system of the LED display screens is simple in structure and convenient to assemble, and the automatic display method of the LED display screens can achieve automatic display and replacement of the content of the LED display screen; a user just needs to input content to be displayed and relative location and time into the information center, subsequent steps of display, replacement and the like can be automatically achieved, the information distribution is simplified, and the working efficiency is improved.

The invention discloses a constant temperature and humidity control system. The constant temperature and humidity control system comprises a humiture sensor, a singlechip microcomputer (SCM), an LED (Light Emitting Diode) display screen, a temperature adjusting device, a humidity adjusting device, a disinfection device, a transmission module, a ZigBee transfer infrared module and a power supply module, wherein the SCM is connected with the humiture sensor and the LED display screen respectively, is connected with the temperature adjusting device through the ZigBee transfer infrared module and is connected with the humidity adjusting device through the transmission module, and the disinfection device and the humidity adjusting device are in pipeline connection. The constant temperature and humidity control system has the advantages that fresh air can be supplied to an air blower to disinfect while a surrounding environment is enabled to keep a constant temperature and humidity state; in addition, other equipment can be additionally arranged conveniently so as to expand the function of the system.

The invention discloses an intelligent substation signboard, and relates to a substation signboard. The substation signboard comprises a plurality of split display plates, wherein the plurality of split display plates are sequentially arranged from left and right and are connected by virtue of connecting terminals; each split display plate comprises an LED display device and a shell; and the LED display devices are arranged on the shells. By arranging the split display plates and by arranging sensors and voice prompt devices in the split display plates, the substation signboard can implement voice prompting when foreign personnel enters a warning area by accident, so that the occurrence of an electric shock accident is prevented and a warning effect is enhanced. Hanging assemblies are arranged, and by virtue of magnets in the hanging assemblies, the intelligent substation signboard can be adsorbed on the surface of metal or the intelligent substation signboard can be adsorbed on the surface of a smooth wall, a tile wall, glass and the like by virtue of rubber suckers, so that the substation signboard is convenient to hang and is broad in hanging scope. The signboard provided by the invention is used for displaying and identifying early warning information in the work of a substation.

The utility model discloses an engineering mechanical control box, and relates to the technical field of mechanical equipment, in particular to a multifunctional engineering mechanical control box. The mechanical control box comprises a mechanical control box body, a mechanical control box shell, an LED display screen, a mounting base, a controller, a music player, a power supply, a control paneland a lighting device. A volume control button, a music playing button, an LED display screen and a control panel are arranged on the mechanical control box body. A mechanical control box shell is arranged on the outer side of the mechanical control box body. A controller, a music player and a power supply are arranged in the mechanical control box body, a mounting seat is arranged above the mechanical control box shell, and a lighting device is arranged on the mounting base. After the technical scheme is adopted, the mechanical control box has the beneficial effects that the music player is arranged in the mechanical control box, music can be played to relieve fatigue, the lighting device is arranged, lighting can be provided under severe conditions, operation is convenient, the LED display screen is arranged, and data can be displayed.

The invention discloses a conveniently-movable traffic light provided with an emergency power supply and capable of achieving photovoltaic power generation. The traffic light comprises a power storagebox, an LED display lamp and a power generator, wherein truckles are arranged on the lower side surface of the power storage box; a lifting seat is arranged at the middle position of the upper side surface of the power storage box; a wire guide hole is formed in the middle position of the upper side of the lifting seat; a wire winding shaft is arranged on the lower side of the wire guide hole; the power generator with vanes are arranged under a solar cell panel; when the weather is relatively bad, the wind power generator located at a broad crossroad is capable of continuously generating power and supplying the power to a storage battery so as to supplement the deficiency of solar power supply; the solar panel is used for protecting the power generator from radiation and rain and ensuringthe service life of the power generator; a pulley block controlled by a ratchet wheel to wind and unwind the wire is additionally arranged; the height of a display lamp support rod can be conveniently controlled; meanwhile, the weight of the traffic light is reduced; the cost of the traffic light is reduced; the mobility of the traffic light is improved.

The invention relates to the technical field of screen color difference detection, in particular to an LED display screen color difference detection device and method. The device comprises a detection bin, a conveying roller set, a positioning assembly, a longitudinal mounting frame, a first driving motor, a transverse mounting frame, a second driving part, a color difference detector, an adjusting part and a controller. The conveying roller group is arranged in the detection bin; the positioning assemblies are arranged on the two sides of the detection bin. The longitudinal mounting racks are arranged on two sides of the upper end of the detection bin; the transverse mounting frame is slidably arranged on the longitudinal mounting frame; the adjusting piece is slidably arranged on the transverse mounting frame; and the chromatic aberration detector is arranged on the adjusting piece. The LED display screen is fixed and cleaned through the positioning assembly, and detection interference is reduced. Then the chromatic aberration detector is adjusted to move in a Z shape, the detection range is fully covered, and comprehensive detection and no dead angle are guaranteed. Finally, the flexibility and diversity of detection are further improved through the adjusting part, the requirements for the detection position and angle are met, and then the detection precision is improved.

The invention belongs to the petroleum equipment technical field and discloses an oil drilling motor. The oil drilling motor includes a base, a controller and miniature infrared cameras; the base is provided with a motor main body; the motor main body includes a main shaft, a rotor assembly, a carbon brush, a cast aluminum electric heating plate, an oblique brush holding assembly and a brush holding clamp which is arranged through bolts; a junction box assembly is arranged to one side of the motor main body; an explosion-proof tube and an explosion-proof tube are arranged between the junctionbox assembly and the motor main body; the junction box assembly is of a positive pressure explosion-proof structure; the upper right corner, the lower left corner, and the lower right corner of the motor main body are respectively provided with the miniature infrared cameras respectively; transparent protective hoods are disposed outside the miniature infrared cameras respectively; the output endsof the miniature infrared cameras are connected with the input end of the controller; and the output end of the controller is connected with an LED display. The oil drilling motor of the present invention has the advantages of strong overload capacity, high reliability, easiness in maintenance and the like.

The invention discloses a portable foldable LED display screen, and relates to the technical field of LED display screens. The portable foldable LED display screen comprises an LED display screen body, a first bottom plate, a second bottom plate, a fixing mechanism and a folding mechanism. A convex block is arranged on the lower surface of the second bottom plate, and the fixing mechanism is arranged at one end of the second bottom plate. The fixing mechanism comprises a second fixing groove, a fixing spring, a fixing piece, a sliding block and a sliding groove. According to the scheme, a rotatable folding assembly is installed outside, when a push rod is pressed down, the push rod pushes a push block and a trapezoidal block, the trapezoidal block is contracted in a first mounting groove,a third connecting rod, a second connecting rod and a first connecting rod are pushed out through the elastic force effect, the first bottom plate and the second bottom plate are separated, and afterfolding, the LED display screen is supported through a telescopic rod, the LED display screen can be supported and used without additionally arranging an LED display screen fixing support, operation is easy, and the LED display screen can be repeatedly used anytime and anywhere.

The invention discloses a high-voltage switchgear monitoring control circuit comprising a central processing unit, a temperature sensor, a data acquisition module, a data transmission module, an LED display module, an alarm module, and a wireless transmission module. The data transmission module comprises an infrared transmitting processing circuit, an infrared receiving processing module, an infrared transmitting diode, and an infrared receiving diode, wherein the infrared transmitting processing circuit is composed of a waveform generator, a phase inverter, a modulation circuit and an amplifier, and a voltage follower is arranged between the output signal of the infrared receiving processing module and the central processing unit. Acquisition of processed signals is more stable, and clutter can be effectively suppressed under external disturbance.

The invention discloses a relay protection device in a transmission line. The relay protection device comprises a box body, an LED display screen, a function key group, a maintenance interface and a detection hole. The LED display screen is arranged on the right side of the front of the box body. An indication lamp is arranged on the LED display screen. A number of maintenance interfaces are arranged on the upper end of the left side of the front side of the box body. The function key group is arranged below the maintenance interfaces. A relay switch and the detection hole are arranged below the function key group. Four corners of the front side of the box body are fixed by screws. According to the invention, the protection demand of the transmission line is met; the relay protection device can be arranged in a transmission tower for a long time, processes detected data through the GPS network, sends the data to a console, and can carry out on-site maintenance and detection; a front plugboard member facilitates the ductility of each board of the device; and the device has the advantages of high safety, stability and reliability.

The invention discloses a drum-type coal mining machine with water pumping function. The coal mining machine comprises a coal baffle, a material-adjustment hydraulic cylinder, a pure steel reinforced pedestal, a cooling fan, a pressure reduction rolling shaft, an LED (light-emitting diode) display device, a control box, a height-adjustment hydraulic cylinder, an electromotor, a cutting part reduction box, a rocking arm, a denoising cover, a cutting roller wheel, a cabinet and an alarm. One side of the cabinet of the novel drum-type coal mining machine is provided with the LED display device, and the LED display device can instantly completely display the coal mining machine temperature, coal cinder pulverization degree and operating instruction light, thereby ensuring the use convenience. The cooling fan arranged on the bottom of the coal mining machine can control the temperature of the machine body within the safety limit, thereby ensuring the use safety. One side of the coal mining machine is provided with the alarm, so that the alarm can give an alarm and flicker in case of an emergency of the coal mining machine, thereby facilitating people to dispose in time. The denoising cover arranged on one side of the cutting roller wheel ensures the use comfort. The drum-type coal mining machine is firm and durable, and all the components are connected flexibly.