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Samsung Develops World's First "Blue Phase" Technology
to Achieve 240 Hz Driving Speed for High-Speed Video
May 15, 2008
Source: Samsung
Samsung Electronics
Co., Ltd., the world's largest provider of thin-film transistor
liquid crystal display (TFT-LCD) panels announced today that
it has developed the world's first "Blue Phase"
LCD panel – which will offer more natural moving images
with an unprecedented image-driving speed of 240 Hertz. Samsung
is planning to unveil a 15" model of its Blue Phase LCD
panel at the SID (Society for Information Display) 2008 international
Symposium, Seminar and Exhibition, which will be held in Los
Angeles from May 18 to 23.
Executive Vice President Souk Jun-hyung, the head of LCD Business'
Display R&D Center, said that "Our Blue Phase mode
is a major evolutionary development beyond conventional liquid
crystal modes. Samsung's development of the technology provides
a tremendous opportunity to move image quality of LCD screens
much closer to that of a real moving image."
Developed with an extremely cost-efficient design, Samsung's
Blue Phase mode does not require liquid crystal alignment
layers, unlike today's most widely used LCD modes such as
Twisted Nematic, In-Plane Switching or Vertical Alignment,.
This new Blue Phase mode can make its own alignment layers,
eliminating the need any mechanical alignment and rubbing
processes. This reduces the number of required fabrication
processes, resulting in considerably savings on production
costs. Additionally, Blue Phase panels will reduce the possibility
of bruising the LCD panel interface whereby pressure on the
screen can impair uniform brightness.
Overdrive circuits are currently applied to each LCD panel
to improve the video image quality in premium LCD TVs, which
are driven at 120Hz. The Blue Phase mode features a superior
response rate, allowing images to be reproduced at 240Hz or
higher without the need for any overdrive circuit. The term
"Blue Phase" was coined when the technology's developers
observed bluish hues while watching their new liquid crystal
mode in operation.
Since many academic and corporate institutions researched
this new liquid crystal mode, Samsung has become the first
to unveil a commercially viable product prototype using the
"Blue Phase" technology.
Samsung expects to begin mass producing its Blue Phase LCD
in 2011. The LCD panels will be mainly used in TVs that require
high-speed video reproduction.
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