As a high-tech product, the full-color LED display has attracted people's attention. The intelligent full-color LED display with computer control and integration of light and electricity has been applied in a wide range of fields. What is the role of full color LED display driver chip? The pixel points adopt LED light-emitting diodes, and many light-emitting diodes are arranged in a dot matrix to form an LED array, thereby forming an LED screen. Different effect images can be obtained by different LED driving methods. Therefore, the advantages and disadvantages of the LED driver chip play an important role in the display quality of the full-color LED display. The full-color LED display driver chip can be divided into a general-purpose chip and a dedicated chip.
General-purpose chips are generally used for low-end products of full-color LED displays, such as single and dual-color screens in indoors. The most commonly used general-purpose chip is the 74HC595, which has an 8-bit latch, a serial-to-parallel shift register, and a three-state output function. Each channel can output a maximum of 35mA non-constant current.
Since the full-color LED display is a current-characteristic device, that is, under the premise of saturation conduction, its brightness changes with the magnitude of the current, and does not change with the voltage across it. The biggest feature of the dedicated chip is to provide constant current source output, to ensure stable driving of the LED, and to eliminate the flicker phenomenon of the LED. It has the characteristics of large output current and constant current, and is suitable for occasions requiring high current and high image quality, such as outdoor full color screen and indoor full color LED display.
The full-color LED display LED driver chip series SMT5026.SMT5026 has built-in CMOS shift register and latch function, which can convert serial input data into parallel output data format.
Mixing Machine
A mixer is a mechanical device that uses mechanical force and gravity to mix two or more materials evenly. In the process of mixing, the contact surface area of the material can also be increased to promote chemical reactions; it can also accelerate physical changes.
Commonly used mixers are divided into four categories: gas and low viscosity liquid mixers, medium and high viscosity liquid and paste mixers, and powder and granular solid material mixers.
Granules Mixing Machine,Powder Blending Machine,Powder Mixer Machine,Powder Blender Machine,Dry Powder Mixing Machine
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