High-Transmittance/Low-Power Transmissive Color
8.8 cm (3.5-type) 123K-Dot LCD Panel
ACX310AK
The 3.5-type color LCD panel is widely used as the monitor in
digital video cameras.
Sony has already released the 200K-dot ACX302BK as a high-
resolution low-temperature polycrystalline silicon TFT LCD.
Now, to expand its lineup of LCD panels, Sony is releasing
the 123K-dot ACX310AK, which provides the same functions
as the ACX302BK.
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8.8 cm (3.5-type) 123K-dot LCD panel
High transmittance (9.5%) achieved by low-
temperature polycrystalline silicon TFT
technology
Low power consumption: 50 mW (when a
12 V power supply is used)
Analog full-color display
Wide aspect ratio display function
Up/down and/or right/left inversion func-
tions
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Supports Flexible End-
Product Design
With the release of the ACX310AK 3.5-
type color LCD panel for digital video
cameras in addition to the 200K-dot
ACX302BK high-resolution panel,
Sony now provides a lineup of two
models in this type of product. This
means that in the future, the user prod-
uct line can be expanded using only
low-temperature polycrystalline silicon
TFT LCDs, thus increasing flexibility
in end-product design.
Additionally, the external panel dimen-
sions were designed to match those of
existing amorphous silicon TFT LCDs,
thus flexibly supporting needs for
changing the panel type.
High Transmittance
Achieved
As a result of optimized pixel design
using Sony鈥檚 low-temperature polycrys-
talline silicon TFT technology, this de-
vice achieves the high aperture ratio of
80%. Furthermore, by adopting a new
pixel structure, Sony was able to radi-
cally increase the optical transmittance
over that provided by conventional
amorphous silicon TFT LCD panels,
achieving a value of 9.5% in the
ACX310AK. (See table 1.)
Even Lower Power and
Improved Ease of Use
By using unique Sony-developed circuit
technology, Sony was able to achieve
the lowest power for this class of panel
in the ACX310AK. (See table 1.) Fur-
thermore, by incorporating voltage step-
up and negative voltage generation
circuits in addition to the functions that
have been provided in earlier products,
the up/down and/or right/left inversion
functions and the wide aspect ratio
display functions, Sony was able to
obviate the need for certain of the
power-supply voltages previously
provided externally to the panel. This
improves the ease of use of this panel.
(See figure 1.) Sony is now developing
a new system-on-chip IC (the
CXA3549R) that will integrate both
timing generator and control functions
on a single chip. This new single-chip
IC will make drive circuit design
significantly easier. (See figure 2.)
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With the release of the ACX310AK
announced here in addition to
the ACX302BK, Sony has ex-
panded its lineup of 3.5-type
color LCD panels. Furthermore
Sony has already released 2.5-
type color LCD panels. I strongly
recommend that you try these
Sony low-temperature polycrys-
talline silicon TFT LCD panels. I
am confident that these panels
can provide product differentia-
tion in your DVC products.
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