As an established company that has been working in the IC field for nearly 20 years, Accumulation Technology has made small-pitch display ICs a key product for the future. The company has already been sensitive to this market segment. The company began deploying this a few years ago. field.
Chen Qikai, general manager of Accumulation Technology, said that the penetration rate of small-pitch LED displays will gradually increase. For LED display IC companies, the future of the new blue ocean is in the field of small-pitch IC.
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Chen Qikai, General Manager of Accumulation Technology
Strong launch of ultra-dense screen solutions
At present, the display screen is divided into a static screen and a dynamic screen. In the industry, the application of the indoor display screen is mostly a dynamic scan screen. The dynamic scan screen can not only be made into an ultra-dense screen, but also has the advantages of low energy consumption and high space tolerance.
However, as the number of scans increases and the LED dot pitch shrinks, problems arise, such as up/down smear problems due to the capacitive effect of the lamp and LED, and the first sweep darkness problem. , or the unevenness of the block caused by the potential inconsistency.
Chen Qikai said that in order to solve the above problems, the company introduced the ultra-dense screen MBI5155 product, which is a driver chip designed for LED full-color display applications, and optimized for circuit design for driver IC operating voltage of 4.2V, low output channel. The corner voltage feature supports a lower LED operating voltage and can effectively reduce the power consumption of the LED display system.
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Accumulation Technology Booth Map
"MBI5155 built-in SRAM's innovative architecture can support up to 32-scan LED scanning screen. Users only need to send a complete frame data and store it in the SRAM of the LED driver chip. This way not only saves the data band, but also High gray scale results at very low data clock frequencies," Chen Qikai said.
In addition, with the Scrambled-PWM (S-PWM) technology, the MBI5155 enhances the pulse width modulation function and spreads the on-time into several short on-times, thus increasing the visibility of the scan screen. Update rate. In addition, the MBI5155 uses GCLK's multiplier technology to double the visual update rate without increasing the GCLK frequency.
According to Chen Qikai, the MBI5155 also features real-time error detection, which can independently detect whether each LED is open without additional external components. MBI5155's novel cross-cutting function solves the problem caused by a single LED dead pixel. The light point error shows the problem. In addition, the built-in pre-charging of MBI5155 can eliminate the ghost phenomenon well; the built-in low-ash processing technology effectively solves the display defects of the scanning screen and improves the display quality.
Hawkeye platform solves industry problems
Chen Qikai believes that after 2015, the LED industry has entered an inflection point. If the enterprise is only staying in the plagiarism imitation stage, it will be a foregone conclusion. If the enterprise has to cope with the changes in the industry, it must master the general trend in the business before it can be in the market. To have a role to play.
At present, Accumulation Technology focuses on two aspects in product layout. The first is to upgrade the basic models of the company. In addition to improving the cost performance of the products, the company uses new technologies to enhance the refresh rate of products and customers. brightness. Another product is the birth of the company's Hawkeye platform, which will provide customers with a complete set of solutions to solve industry problems.
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Accumulate Technology Display Forum to explain the Hawkeye platform solution
Chen Qikai introduced that the Hawkeye platform is composed of a driver chip and peripheral chips to form a hardware platform. Hawkeye is represented by a controller and represents a solution. The Eagle Eye platform of Accumulation Technology has introduced related solutions, such as EMI solutions. Highly integrated solutions, energy saving solutions.
"The choice of the Hawkeye solution platform is not only to select components, but to select the features and performance of the finished display." Chen Qikai said that the Hawkeye platform has the functions of reducing LED reverse bias, reducing LED dead pixels, and LED dead pixels isolation. The display is still excellent under high refresh, and features such as high integrated circuits.
In addition, the company is also planning to introduce a brightness adjustment template function, through the support of the Hawkeye solution platform control software can save the display effect of different percentages of brightness class to optimize the driver IC configuration, providing lossless grayscale brightness adjustment.
“Gathering Technology hopes to always stand on the same line with customers and think more for customers.†Chen Qikai said that for the end customers, the Hawkeye platform can quickly identify the core features of the display, no longer how to choose Troubled by your own good screen, being the best overall solution provider is the ultimate goal of Accumulation Technology.
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