Dec 22 2007
Himax Technologies, Inc. today introduced a patented technology for LED notebook panels, CMDI (Cascade Modulated Driver Interface). CDMI technology enables thin and light form factor, lower material costs, and lower power consumption for LED notebook panels and supports resolution of up to 1920x1200. CMDI technology has already passed qualifications at certain North America notebook brands and is in mass production.
Himax’s CMDI reduces the usage of PCB and FPC on LCD panels. Data, signals and power are transmitted on the glass and through source drivers with COG (Chip on Glass) package in a cascade formation. As a result, panel manufacturers can reduce material costs, and design thinner and lighter panels. More importantly, by implementing Himax’s CMDI technology in LED notebooks, the panel PCB and LED driving board could be combined into one board which reduces the thickness of the notebook panels, thus providing value-add in the industrial design and greater appeal to end users.
Himax proprietary DETTL (Dual Edge TTL) interface is introduced for the connection between timing controller and source drivers. DETTL enables the interface to function with lower power 1.8V, as compared to traditional RSDS and mini-LVDS interfaces which typically operate at 2.5-3.3V, thus reducing power consumption. Additionally, CMDI adopts two-pair and dual-control to support panel resolution of up to 1920x1200. With these value-added features, CMDI is also expected to be adopted in applications other than notebook panels in the future.