[December 02, 2016] |
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Panasonic Develops Industry's First*1 IPS Liquid Crystal Panel with Contrast Ratio of over 1,000,000:1
Panasonic (News - Alert) Liquid Crystal Display Co., Ltd., a subsidiary of Panasonic
Corporation, today announced it has developed a new model of its IPS
liquid crystal panel that achieves a contrast ratio[1] of
over 1,000,000:1, which is 600 times*2 that of conventional
liquid crystal panels. With Panasonic's unique IPS[2] liquid
crystal technologies that feature wide viewing angles, high brightness,
and high reliability, the new IPS panel has achieved a high contrast
ratio of over 1,000,000:1 by integrating newly developed
light-modulating cells that permit pixel-by-pixel control of backlight
intensity. This achieves a faithful and high-grade video display,
ranging from dazzling light to pitch-black.
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Structural comparison between conventional and new liquid crystal panels (Graphic: Business Wire)
The new IPS panel is ideal for use in professional-use High Dynamic
Range (HDR (News - Alert)) monitors for broadcasting stations and video production
studios. HDR displays can reproduce images that are faithful to what
people see, ranging from bright light to jet-black darkness. Also, the
new high-contrast panel is suitable for use such as medical monitors
that require faithful video display and automotive monitors that require
clear visibility without black floating[3].
Panasonic's new IPS Liquid Crystal Panel has the following features:
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An industry-first high contrast ratio of over 1,000,000:1, which is
600 times that of conventional products
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Capable of stable operation at a maximum brightness of 1,000 cd/m2
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Can be manufactured using existing liquid crystal panel manufacturing
facilities
The new high-contrast IPS panel solves the problems inherent in
conventional liquid crystal panels. Despite their track record in
wide-ranging applications from B-to-C to B-to-B fields, conventional
liquid crystal panels suffer black floating, white washout phenomenon,
in dark parts of the display area when the backlight intensity is
increased to raise brightness. When the backlight intensity is lowered
to make dark parts clearer, these panels also suffer a loss in sparkle
in bright parts.
Suitable applications: High-end monitors for broadcasting,
video production, medical, automotive, and other fields
Sample availability: Sample shipment will start in January
2017.
Notes:
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*1
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Among IPS liquid crystal panels within a single screen without using
any backlight control technique
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(as of November 28, 2016, based on a survey conducted by Panasonic)
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*2
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Compared with Panasonic's current products that have a contrast
ratio of 1,800:1
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[Features]
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1.
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Industry-first high contrast ratio of over 1,000,000:1 - 600
times that of conventional products
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Conventional liquid crystal panels, with a contrast ratio of
approximately 1,800:1, suffer black floating in dark parts when the
backlight intensity is increased, and they suffer a loss in sparkle
in bright parts when the backlight intensity is lowered.
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Panasonic's new high-contrast IPS panel uses newly developed
light-modulating cells, which operate based on the operating
principle of liquid crystals, and these cells are integrated into
the display cells. As a result, it is capable of controlling the
amount of backlight entering the display cells pixel by pixel, thus
achieving a contrast ratio of 1,000,000:1.
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The light-modulating cells are composed of a liquid crystal material
that differs in light-transmission properties from that used in the
display cells, allowing independent control of the display and
light-modulating cells. This has reduced light leakage
significantly, allowing finely-tuned gradation expression.
Furthermore, the application of Panasonic's IPS liquid crystal
technologies, developed for industrial use, has achieved a contrast
of 1,000,000:1 (maximum brightness: 1,000 cd/m2, minimum
brightness: 0.001 cd/m2) while maintaining features
including wide viewing angles and high light-transmission efficiency.
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Consequently, the new high-contrast IPS panel can make
HDR-compatible displays for professional use at broadcasting
stations and video production studios, and is suitable for uses
including medical monitors and automotive monitors.
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2.
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Capable of stable operation at a maximum brightness of 1,000
cd/m2
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The new high-contrast IPS panel achieves a maximum brightness of
1,000 cd/m2 by enhancing the transmittance of the display
and light-modulating cells and adopting a high-brightness backlight.
For the light-modulating cells, the company has developed a
light-tolerant material that provides stable operation over a long
period of time, despite exposure to intense light from the
high-brightness backlight, as well as a unique cell structure.
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3.
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Can be manufactured using existing liquid crystal panel
manufacturing facilities
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The new panel can be manufactured using the existing equipments for
liquid crystal panel manufacturing. Panasonic Liquid Crystal Display
Co., Ltd., possesses an industry-leading scale of 8.5th-generation
(G8.5)[4] production lines that are capable of
manufacturing 10- to 100-inch products.
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[Terminology]
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[1]
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Contrast
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Ratio of the brightness of white to that of black of a display
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[2]
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IPS (In-Plane Switching) liquid crystal
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A liquid crystal operating mode that displays images by rotating
liquid crystal molecules in a plane parallel to the substrates to
change light transmittance
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[3]
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Black floating
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Phenomenon in which black parts appear slightly whitish when
watching a display screen in a dark room environment
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[4]
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8.5th generation (G8.5)
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Production lines that use glass substrates of 2,500 mm x 2,200 mm
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About Panasonic Panasonic
Corporation is a worldwide leader in the development of diverse
electronics technologies and solutions for customers in the consumer
electronics, housing, automotive, enterprise solutions and device
industries. Since its founding in 1918, the company has expanded
globally and now operates 474 subsidiaries and 94 associated companies
worldwide, recording consolidated net sales of 7.553 trillion yen for
the year ended March 31, 2016. Committed to pursuing new value through
innovation across divisional lines, the company uses its technologies to
create a better life and a better world for its customers. To learn more
about Panasonic: http://www.panasonic.com/global.
View source version on businesswire.com: http://www.businesswire.com/news/home/20161202005199/en/
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