Samsung Electronics Introduced New Standard for Large-size LCD Panel
July 31,2004 (Seoul)--Samsung Electronics has announced a new interface standard for display driver ICs for large-screen TFT-LCD panels. The new current-mode interface of cascade COG/ COF (CICC) standard uses a new technology for data transfer where the LCD driver IC is interfaced with the timing controller
Today, electromagnetic interference (EMI) is a growing issue in the LCD panel industry. EMI is caused by the increased size in LCD monitors and TVs, the rapid advancement in high-resolution pictures, a continuous surge in display data size and a rising number of data bus lines to accelerate the data transmission speeds.
To address EMI, Samsung's CICC standard operates on a lower current swing method (DI=200uA, DV£10mV) and adopts a serialized, cascade data transfer method that allows data to directly flow between adjacent LCD driver ICs.
"Samsung will apply this new CICC standard to its own products while expanding its use as an industry standard," said vice president Jin-tae Kim of Display Driver Development Team, System LSI Division, Samsung Electronics. "We are convinced that the CICC standard will be widely adopted as a next-generation interface standard for large-screen TFT-LCD driver IC, with its features benefiting LCD Panel makers."
The data bus line can be halved from 18 lines to 9 in a 6-bit LCD driver IC using the CICC standard, minimizing EMI and reducing power consumption by 20 percent. In addition, the chip size of the timing controller can be decreased, while the driver board can be simplified with the 50 percent reduction of peripheral parts.
Samsung presented the CICC technology at the Society for Information Display (SID) 2004 in May 2004.