The application of small-pitch LED display makes the LED display step into the indoors from the outside, and the pitch is gradually reduced from P10 to P3, P2, and even P1.2, which means that the LED display is LED package, drive control and system. More stringent requirements have been put forward in terms of heat dissipation design. In the new century, LED network reporter interviewed Mr. Li Yaping, the general manager of Juji Group (Shenzhen) Co., Ltd., the leader of display driver IC, to discuss the new evolution direction of LED display and the new requirements for driver IC.
Small pitch products are growing strong this year
Mr. Li Yaping told reporters that the small spacing is not a new market. It can only be said to be a growing market. The market with small spacing only accounted for 5% a few years ago, but now it has reached 15%-20%. Accumulating this year, the sales of small-pitch driver ICs will also nearly double.
It is understood that the industry's indoor display applications are mostly dynamic scanning screens. However, as the number of scans increases and the LED dot distance shrinks, the problems that arise will come up, for example, due to the capacitive effect of the Lamp and LED. The resulting up/down smear problem, the first line sweeping darkness problem, or the unevenness of the block caused by the potential inconsistency.
Therefore, whoever can solve the above problems first can take the lead in the field of small-pitch display. According to Mr. Li Yaping, Accumulation Technology began to cooperate closely with controller manufacturer Nova for small dot spacing screen last year and reached a strategic partnership relationship in January 2014. In recent days, Accumulation Technology has launched MBI5151, MBI5152, MBI5153 and other products for 8 scanning screens, 16 scanning screens, 32 scanning screens and other applications in the scanning screen, which solved the first sweeping darkness, undergrowth, low gray unevenness and Low gray and white balance color shift and other issues. In particular, the MBI5153 has an advanced function to remove the LED dead point cross phenomenon and the gradation dark line problem. It is a considerable breakthrough for the development of the small dot pitch screen.
In 2013, the program for small pitch was introduced, mainly in: one is the large area of ​​the control system to be loaded; the other is the discreteness of the LED lamp and the discreteness of the driving chip when the spacing is smaller, relative to the human eye. In this case, it will be relatively violent. This piece must be used to correct point-by-point correction and point-by-point bright chromaticity correction. Accumulating in this piece is just the advantage.
On the other hand, Mr. Li Yaping also said that the large-scale growth of small-pitch products has also benefited from the decline in the price of LED chips , driving down the overall cost of LED displays and stimulating market demand.
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