What They Say
Samsung published an article on its newsroom that set out information about its S6LP441 and S6LDMB1 miniLED driver chips.
Engineer Seongjong Yoo explained that,
“…we borrowed from the matrix driver plan commonly used in operating LCD TV displays. We succeeded in developing a more accurate and efficient IC solution by applying the matrix driver plan, which allowed us to establish finer control over the more densely-packed LEDs in a set area.”
“The existing multiplexing method illuminates LEDs sequentially at prescribed intervals, which made finite timing control difficult. Our team analyzed the advantages of each LED operation method, and worked to achieve more efficient light emission and reduce the amount of wiring needed.”
The innovation in this new IC system solution lies in the separation of the LED Current Driver IC (S6LP441) and the Controller IC (S6LDMB1) that governs it. The S6LP441, which is a micro LED current driver, was placed in close proximity to the Mini LEDs so that it could better control them. This new system, developed by Samsung Electronics, allows for more efficient use of the LED’s light emission period compared to the Multiplexing method otherwise applied in the industry. The new method also has advantages in expanding dimming zones and increasing the energy efficiency of the IC itself by minimizing the amount of wiring required.
“Innovative Chip Scale Package (CSP) technology was employed in production of the S6LP441 IC, which eliminated the need for the metal wire connection manufacturing process,”
said engineer Hyungtae Kim
What We Think
It’s good to see Samsung giving some limelight to its engineers. It’s also good to see innovation in LED driving – which has been a long term challenge for the industry. The products are not currently listed by Samsung online, but we have reached out to them to get more information on the new driving scheme. (BR)
