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Medical imaging benefits from Hitachi IPS-Pro TFT technology
December 1, 2008
Source: Hitachi
Hitachi Europe Ltd, Display Products Group
(DPG) has announced the introduction of a new 19inch 1.7MegaPixel
WSXGA+ TFT display module. The new TX48D21VM0CAA display implements
the latest evolution of Hitachi's In-Plane-Switching technology,
IPS-Pro, which provides a stable colour image from any viewing
angle, excellent colour saturation and a very high contrast
ratio.
Demand for wide viewing angle and wide field of vision displays
has increased in high performance monitoring equipment. Medical
imaging applications such as ultrasonic based diagnostic and
computed tomography (CT) scanning systems require highly consistent
optical performance and accurate image reproduction. Contrast
and colour characteristics must be maintained over a wide
range of viewing angles/positions. When viewed from an acute
angle, a conventional TFT display will exhibit a loss of brightness
and display image colours become inverted.
In certain applications this performance limitation is not
critical; a laptop pc where the user is situated perpendicular
to the TFT display. In medical diagnostic imaging systems
however the image viewed by one doctor or consultant could
be different to the representation seen by a second viewing
consultant in an alternative viewing position. Hitachi's IPS-Pro
TFT technology overcomes the limitations of conventional TFT
display technology.
The new TX48D21VM0CAA display modules joins Hitachi's existing
17inch SXGA and 21.3inch UXGA IPS-Pro TFT displays that are
targeted at high performance medical applications. "Customers
in professional markets can benefit from the high contrast
and wide viewing angles achieved by IPS-Pro technology.
For applications where absolute image quality is paramount
these displays deliver unparalleled performance," says
Steve Donohoe, Technical Manager for Hitachi Display Products
Group "The new TX48D21 display offers excellent colour
saturation with a very high contrast ratio. The black level
of the new display combined with improved transmittance helps
to provide a contrast ratio of 900:1."
The superior performance of IPS-Pro technology also enables
the 17inch, 19inch and 21.3inch displays to be used in a wide
range of high-end, multi-viewer applications which demand
high optical performance. All models are ideally suited for
use in public information displays, security surveillance,
video monitoring and many other high end industrial applications.
The 19inch WSXGA+ TX48D21VM0CAA features a resolution of 1680
x 1050 pixels, a contrast ratio of 900:1 and brightness of
300cd/m². The LVDS input signal interface enables up
to 16.7M colours to be displayed. The new display module has
outline dimensions of 444mm (w) x 300mm (h) x 24.0mm (d) and
weighs in at 2900g.
The IPS-Pro technology used in the TX48D21 display ensures
viewing angles of 170 degrees in both horizontal and vertical
planes, without significant reduction in contrast. The TX48D21
features a long-lifetime CCFL backlighting unit.
The new TX48D21VM0CAA display is sampling now and scheduled
for mass production in Q1/2009.
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