ACX383AKM |
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■ High resolution: 23.5 μm × 70.5 μm
dot pitch
■ 2.74-type full widescreen display
(480 × RGB × 864)
■ Fast response time: 8.5 ms
(single side)
■ High 1000:1 contrast ratio
■ High color reproducibility: NTSC
ratio 74%
■ 24-bit full color
■ Wide viewing angle: 160° (CR > 10) |
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 Ultrahigh Resolution 2.74-Type WVGA with
the Industry’s Smallest Pixel Size Class |
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With the increasing availability of public
wireless LANs, the expanding area of One
Seg broadcasting, and the popularity of GPS-based
in-car navigation systems, there is an
increasingly wide range of content available for
mobile applications. The needs for displays
that provide TV or PC class resolution despite
compact size are growing rapidly, and it is the
ACX383AKM that can meet these needs. In
this device, Sony has achieved an ultrahigh
resolution full widescreen WVGA (480 × RGB
× 864) with the industry’s smallest pixel size
class of 23.5 μm × 70.5 μm. The number of
pixels is four times that of WQVGA displays, and despite being a small display, high-resolution
maps, images, and text are easy to
read, allowing this device to support a wide
range of content. (See figure 1.) |
| High-Contrast, High Color Reproducibility
24-Bit Full Color for Faithful Image
Reproduction |
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With the increasingly high pixel counts in
cameras, users are now demanding high picture
quality that can provide excellent image
display, even in mobile devices. The
ACX383AKM achieves a contrast of 1000:1
and a high color reproducibility NTSC ratio
of 74%. Furthermore, the ACX383AKM holds
the color shift in intermediate colors to lower
levels than even the existing ACX359AKM
by adjusting the color filters and by
independently controlling the individual R, G,
and B voltages. By adopting 24-bit full color
(display of 16,777,216 colors), this panel can
reproduce colors sharply and even more
faithfully and achieves the industry’s highest
level of image quality. |
Optimal for Video Display Due to Fast Response
and Wider Viewing Angle for Easy Viewing
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To support applications such as video and One
Seg, areas in which more and more content is
becoming available, even for mobile devices,
Sony doubled the response speed from that of the ACX359AKM to 8.5 ms (single side) by
optimizing the LCD materials. As a result, the
ACX383AKM achieves even more natural
moving picture display. Furthermore, with a
viewing angle of over 160°, the ACX383AKM
provides even easier viewing. |
| Compact Size |
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The ACX383AKM houses its 2.74-type screen
in a compact 70.77 × 40.24 × 1.7 mm module.
(See figure 2.) The thickness of the glass is
held to a mere 0.4 mm to assure enough space
for the backlight. The ACX383AKM thus
achieves a total thickness of 1.7 mm while
still maintaining even brightness across the
screen. |
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•••• Mr. Fujimoto ••••
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We used the industry’s smallest class of
pixel in this 2.74-type screen and achieved
an ultrahigh-resolution WVGA panels.
These pixels are less than 1/4 the size of
those used in typical PC LCD panels. Since
we also achieved a high 1000:1 contrast
and fast response with 24-bit full color, PC
screen images can be displayed directly.
Thus the ACX383AKM can respond to the
increasing needs for high-resolution moving
images for public wireless LANs, One Seg,
and GPS mobile content. I strongly
recommend this panel for use in mobile
products that need superb display quality to
achieve market differentiation. |
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See
all articles with figures and tables.  |
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Vol.52 |
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