TOKYO & SANTA CLARA, Calif.--(Business Wire)--
NEC LCD Technologies, and its sales and marketing channel in the Americas, NEC
Electronics America, Inc., today announced the development of a new
amorphous-silicon color thin-film-transistor (TFT) liquid crystal display (LCD)
module that achieves an ultra-wide color gamut for 100 percent of the Adobe® RGB
color range by incorporating a newly developed LED light-source unit into the
backlight system and a newly developed color filter.
The white LED that serves as the light source for the backlight unit in this LCD
module achieves its white light by mixing light generated through the
irradiation of red, green, and blue (RGB) phosphors with light from a
near-ultraviolet LED chip (excitation), making it superior to traditional white
LEDs in terms of color-rendering properties. Combining these newly developed
white LEDs with newly developed color filters, optimized for this application,
makes it possible to reproduce a wider range of colors covering 100 percent of
the Adobe® RGB color range, which is generally beyond the reach of conventional
standard white LEDs.
In recent years, there has been an increase in customer demand for LCD displays
using white LEDs as light sources in backlight units due to the many benefits
achieved with LED backlight systems versus
cold-cathode-fluorescent-(CCFLs)-based backlights. Such benefits include smaller
module dimensions, lighter-weight designs, and reduced power consumption. The
LEDs are also mercury free and do not require the use of high-voltage circuitry,
allaying concerns related to safety and the generation of harmonic currents and
high-frequency noise. The LEDs offer superior vibration and shock resistance as
well as superior characteristics with respect to low-temperature startup and a
wider dimming range.
The white LEDs currently in widespread use typically have weaker output in their
red and green wavelength components than CCFLs, since they create white light by
exciting the yellow phosphors that cover the blue LED chips. For this reason,
when used as backlight light sources, traditional white LEDs, even when combined
with color filters having a wide color gamut, impose limits on the expansion of
the red and green color reproduction range, making it difficult to cover the
Adobe® RGB color range.
NEC LCD Technologies overcame these problems with its newly developed LCD module
that is compatible with applications requiring an ultra-wide color gamut, a
capability difficult to achieve with traditional white LEDs. More information
about this new module can be found at
http://www.nec-lcd.com/en/release/release_090529_01.html.
The white LED-basedLCD module will be showcased in NEC Electronics America`s
booth (#459) at the Society for Information Display (SID) Display Week 2009,
June 2-4, at the Henry B. Gonzalez Convention Center in San Antonio, Texas.
About NEC LCD Technologies, Ltd.
NEC LCD Technologies, Ltd. is one of the world's leading providers of
high-quality, innovative, active-matrix liquid crystal display (AM-LCDs) modules
for the industrial and high-end monitor markets. The company focuses its
development on four core technology areas: 1) ultra-wide viewing angle SFT
technology with high luminance, wide color gamut and fast response; 2) NLT
technology for high visibility in any kind of ambient light environment; 3) VIT
technology to add extra value to LCD modules; and 4) adaptive design technology,
which together meet a variety of specialized needs for the flat panel display
markets. NEC LCD Technologies' worldwide support includes sales and marketing
affiliates NEC Electronics America, Inc. (http://www.am.necel.com) and NEC
Electronics Europe (http://www.eu.necel.com) that offer specialized display
solutions to their respective markets. NEC LCD Technologies employs
approximately 1,200 people worldwide and offers one of the broadest product
portfolios for the medical, factory automation, test and measurement,
entertainment, kiosk, POS and ATM markets. Additional information can be found
at http://www.nec-lcd.com/en/index.html.
Adobe is a registered trademark of Adobe Systems Incorporated in the United
States and/or other countries. NEC Electronics is either a registered trademark
or trademark of NEC Electronics Corporation in the United States and/or other
countries. All other registered trademarks or trademarks are property of their
respective owners.
Japan / Asia
NEC Corporation
Joseph Jasper, +81-3-3798-6511
j-jasper@ax.jp.nec.com
or
Americas
NEC Electronics America, Inc.
Denise Garibaldi, +1-408-588-6620
denise.garibaldi@am.necel.com
Copyright Business Wire 2009
