As a high-tech product, after more than two decades of market development, LED display can not only effectively convey the benefit of the people, but also bring unparalleled audiovisual enjoyment to the audience, and it plays a role in people's daily life. Essential and essential role. For example, the LED display driver IC plays an important role in the high-quality display quality of the LED display. What improvements have LED display driver IC technology brought to the screen effect?
The special driver chip for LED display refers to the driver chip specially designed for LED display according to the light-emitting characteristics of LED. The maturity of LED display driver IC technology brings a qualitative leap to the display effect of LED display. With its large output current and constant current, it makes LED display suitable for various occasions with high current and high picture quality. It directly promotes the form of LED display content and the application field to develop in a more diversified direction.
I. Technology leads the future to help the industry achieve innovation and high quality: LED display driver IC is a key component. It is like the central nerve of the human brain, which controls the body's physical actions and the operation of the brain's consciousness. The performance of the driver IC determines the effect of the LED display screen broadcast.Especially in the application of small-pitch LED display, in order to ensure the user's eye comfort for a long time, low brightness and high gray have become a test of the performance of the driver IC. Especially the main standards make people have more stringent requirements for LED display driver ICs.
LED display driver IC makes more effective use of micro-LED ultra-small pitch display board space.High integration can effectively reduce the space of components and components; In addition, in terms of picture quality, low brightness and high stability It has always been the key to dominate the viewing distance and display effect.The average constant current drive of a single color can be as low as 15uA and the number of gray levels can reach 16bit, making the contrast and uniformity of the display screen more delicate, while also achieving energy saving and low power consumption. effect.
In recent years, domestic LED display driver IC technology has also made rapid progress. With the advancement of LED display driver IC technology, the resolution of small-pitch LED displays has been greatly improved, and the pixel center distance of indoor high-density LED displays Continuous breakthroughs have been made, and now it has entered the era of 0.X mm. At the same time, as the demand for terminal displays continues to rise, the carrier of the display can also be said to be innovative.For example, micro-LED has become the focus of attention of the display industry.Micro-LED has high brightness, high efficiency, low power consumption, ultra-high resolution and Features such as color saturation and long life. Nowadays, LED display driver ICs on the market can realize the vision of driving micro-LEDs and make the picture quality more refined.
2. Energy saving and integration are the development trends: LED display driver ICs play a vital role in the development of LED displays. As a green energy source, energy saving is the eternal pursuit of LED displays, and it is also a consideration An important criterion for driving IC performance. In the research and development process, while effectively reducing the constant-current inflection point voltage, and then reducing the traditional 5V power supply to below 3.8V, the operating voltage and operating current of the driving IC were reduced by optimizing the IC algorithm and design.
The LED display application technology and scene are continuously iteratively updated, which has brought many challenges to the driver IC. The LED display driver IC has made major breakthroughs in technology to help the good development of the LED display industry. It will make us more Eye-catching.
In addition, product integration will also become an important development trend for LED display driver ICs. With the rapid decline in pixel pitch of LED displays, the packaged devices to be mounted on a unit area will increase by a geometric multiple, greatly increasing the module drive surface. Component density. Such a crowded arrangement of components can easily cause problems such as poor welding and reduce the reliability of the module. The driver IC uses less, the PCB has a larger wiring area, and the demand from the application side makes the driver IC must embark on a highly integrated technical route.
A variety of mechanical feeders, including drag-chain conveyors and rotary pocket feeders, historically have been used to volumetrically control the flow of fuel to coal pulverizers on power generators. Most power generation in the United States has relied on burning fossil fuels in steam boilers, with coal as the fuel of choice. By the 1920s, pulverized-firing (the burning in suspension of finely ground coal particles) evolved as means to more complete fuel combustion and higher system efficiencies and facilitated the use of larger boilers.
In the 1950s, Arthur J. Stock (1900-1986) successfully combined the weighing and control of material flow into a single device, now known as the Gravimetric Feeder. The first installation was placed in continuous operation at Niagara Mohawk Power Corporation's Dunkirk Station in 1957.
Ralph Hardgrove, a Babcock & Wilcox retiree who joined Stock Equipment Company in 1961 (at 70 years of age), led the feeder's development into general industry acceptance by the mid-1960s, when most large coal-fired boilers included gravimetric feed systems in their design.
The first Stock gravimetric feeder operated from 1957 to 1992, to be replaced by current gravimetric microprocessor-controlled design. This feeder was donated to Stock Equipment, refitted, and refurbished for public display in the engineering plant.
Coal Feeder
Coal Feeder,Feeding Machine,Gravimetric Feeder,Stock Coal Feeder
Jining Dongda Electromechanical Co.,Ltd. , https://www.coal-mine-equipment.com