With the high-order LED display|display device competition tends to be fierce, LED brightness uniformity and color accuracy are strict requirements, the quality of screening LED can not meet the demand; therefore, point-to-point correction for each LED to improve led The quality of the display screen has become a trend. At present, most of the methods of point correction on the market are performed by the controller. However, this method increases the load of the controller and limits the number of LED points that can be controlled. The cost is high and the design of the controller is complicated. Built-in MBI5040 digital point correction new function, can individually adjust the LED brightness uniformity, and avoid the LED chromaticity shift problem that is usually generated during the point correction process. In addition, the point correction operation directly through the MBI5040 allows the controller to focus more on image processing.
Generally, the point correction can be divided into analog type or digital mode. However, point correction by analog method usually causes the problem of LED wavelength shift, that is, LED color shift problem. The main feature of the MBI5040 is 8-bit point correction through digital mode. Under the same visual refresh rate, the brightness of each LED is compensated to ensure that the brightness of the LED can maintain uniform brightness with the brightness of the surrounding environment. There is no need to worry about LED chromaticity shift caused by point correction.
In addition, the MBI5040 has a built-in patent protection circuit design that multiplies the grayscale data by the point correction data. Therefore, when performing point correction, the LED display does not need to sacrifice image grayscale or visual refresh rate. The MBI5040 also provides 16-bit PWM functionality and uses Accumulated Technology's patented S-PWM technology to increase visual refresh rate. The MBI5040 combines 8-bit position correction with 16-bit PWM and maintains a high visual refresh rate, allowing the controller to be designed with lower-order FPGAs, reducing the overall design cost of the controller.
Therefore, through the economical MBI5040, the LED display can be easily upgraded to a high-end LED display, which is especially suitable for indoor and outdoor LED display, LED advertising screen, commercial LED screen and other applications. In addition to the above features, MBI5040 has 16 output channels, which can support a constant current output range of 2mA to 60mA per channel, and withstand voltage up to 17V. In addition, MBI5040 also provides forced error detection, error detection in messages, 7 bits. Current gain, and thermal protection.
Water Cooling CPU Heat Sinking
CPU water-cooled heat sink refers to the use of liquid driven by a pump to forcibly cycle away the heat from the heat sink. Compared with air cooling, it has the advantages of quietness, stable cooling, and less dependence on the environment.
The heat dissipation performance of a water-cooled radiator is directly proportional to the flow rate of the cooling liquid (water or other liquids) in it, and the flow rate of the cooling liquid is also related to the power of the cooling system water pump. Moreover, the heat capacity of water is large, which makes the water-cooled refrigeration system have good heat load capacity. Equivalent to 5 times the air cooling system, the direct benefit is that the CPU operating temperature curve is very smooth. For example, systems using air-cooled heat sinks may experience temperature spikes in a short period of time when running programs with high CPU loads, or may exceed the CPU warning temperature, while water-cooled heat dissipation systems have much smaller thermal fluctuations due to their large thermal capacity
Water cooling
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