LG.Philips LCD Introduces Copper-based Interconnect Technology in TFT-LCDs
- Copper Interconnect Wiring to Increase Brightness of LCDs by 35 Percent,
Reduce Display Jitter by 40 Percent and Lower Overall Manufacturing
- Company to Demonstrate Copper-based TFT-LCD Prototypes during SID 2002
Marking a major industry milestone, LG.Philips LCD Co., Ltd., a leading innovator of liquid crystal
display (LCD) technology, has successfully developed a copper-based
interconnect technology. As a result, LG.Philips LCD will be able to cost
effectively manufacture light weight displays that afford higher brightness
and reduced jitter-significant benefits aimed at OEM customers, and
ultimately, today's consumer.
Traditionally, chromium and aluminum alloy interconnect process
technologies have been the standard in the manufacture of TFT-LCDs. While
copper-based technology promised to have a positive impact on display quality
and cost, there were underlying concerns surrounding device contamination and
poor manufacturing infrastructures-preventing other companies from
successfully leveraging it as an interconnect material. Combating these
challenges head on, LG.Philips LCD has been actively researching copper-based
technology for more than four years, emerging as the first display
manufacturer to successfully demonstrate efficient and effective use of this
LG.Philips LCD's new copper bus line affords several unique advantages,
which include increased brightness of about 35 percent over current LCD
technology, in addition to a 40 percent reduction in electromagnetic jitter.
Furthermore, copper bus material costs 60 percent less than aluminum alloy,
reducing manufacturing costs. Signaling its commitment, LG.Philips LCD has
obtained over 50 related patents (with 20 additional patents submitted) since
1998 related to TFT-LCD copper circuitry technology.
According to Bruce Berkoff, LG.Philips LCD's executive vice president of
marketing, LG.Philips LCD's copper bus line will accelerate the technology
advancement for next-generation TFT-LCDs. "LG.Philips LCD is making
'high-definition and large-scale' displays possible in future LCDs through its
advanced technology leadership, such as this new copper bus line," noted
LG.Philips LCD's copper bus line has demonstrated the ability to transmit
signals more than 2.5 times faster than traditional aluminum alloy. In
addition, it allows for thinner interconnect lines, resulting in increased
conductibility-stabilizing the signal, enabling a higher aperture ratio and
increasing overall display brightness. It also simultaneously increases the
ability to produce larger sized displays, without deteriorating display
uniformity across the panel, which is typically vulnerable to manufacturing
process changes. As a further advantage, using copper in production is more
environmentally friendly than other conventional conductors since it uses
water as a base, rather than acid.
LG.Philips LCD will be demonstrating prototypes utilizing its proprietary,
copper-based TFT-LCD technology, along with other best-in-class TFT-LCDs for
desktop monitor, notebook PC and television applications, during the 2002
Society for Information Display (SID) Symposium, May 19 - 24, at the Hynes
Convention Center in Boston, Mass. Editors interested in seeing this
demonstration or learning more about LG.Philips LCD's TFT-LCD portfolio are
encouraged to visit LG.Philips LCD's booth #2529-2636, or contact Stacey
Voorhees via e-mail at firstname.lastname@example.org to arrange a one-on-one briefing.
About LG.Philips LCD
Headquartered in Seoul, South Korea, LG.Philips LCD -- a joint venture
company established in July 1999 by LG Electronics and Royal Philips
Electronics -- is one of the world's leading manufacturers of AMLCDs.
LG.Philips LCD leads the AMLCD industry through its high technology, quality
and manufacturing capabilities. The company has extended its focus beyond
traditional and successful notebook and PC monitor markets and is poised to
also deliver solutions for consumer electronics products like the growing LCD
TV category, as well as other value-added, non-traditional, display-centric
markets such as the multimedia, medical, automotive and aerospace industries.
As part of its efforts to be at the forefront of display innovation,
LG.Philips LCD is focused on maintaining a diverse product portfolio while
continuing to invest aggressively in R&D to further its market leadership
position in the AMLCD arena. Information on the company is available at
www.lgphilips-lcd.com. LG.Philips LCD makes "Technology you can see!"