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High-Resolution, Low-Temperature Polysilicon
LCD Modules for Digital Cameras Using Newly
Developed "RGBW Method" WhiteMagic™
ACX432AKM
Small LCD modules for mobile devices require high resolution, wide viewing angle, high picture quality,
low power consumption and higher brightness for easy visibility outdoors.
Thanks to a newly developed "RGBW method" WhiteMagic™, the new ACX432AKM, an LCD module for digital cameras, has
a low power mode that reduces power consumption in half*1 at regular brightness and an outdoors mode that doubles the
brightness of the display for better visibility outdoors.
*1: Compared with the conventional RGB method (Sony's comparison)
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ACX432AKM |
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■ Newly developed "RGBW method"
WhiteMagic™ technology
■ Low power mode that reduces
power consumption in half
■ Outdoors mode that doubles
brightness for better outdoors
visibility
■ Full VGA high-resolution LCD
panel
■ Vistarich™, an LCD mode providing
wide viewing angle and high contrast
ratio
*WhiteMagic™ is the generic name
attributed to the LCD technology of low
power consumption and of enhanced
outdoors visibility,
which uses RGBW
method, as well as the LCD panels and
LCD modules that have been designed
based on this technology.
 and "WhiteMagic™" is
a trademark of Sony Corporation.
*Vistarich™ is a trademark of Sony
Corporation.
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 Newly Developed "RGBW Method"
WhiteMagic™ Technology |
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Adding an W (white) pixel to standard
RGB pixels on an LCD panel improves the
brightness of the display, but that alone will
sacrifice color fidelity and image quality.
Sony has developed a new "RGBW method"
WhiteMagic™ technology that analyzes input
picture data and performs optimum signal
processing for RGBW displays. As the new
LCD module employs both RGBW pixels and
WhiteMagic™ technology, it is able to achieve
higher brightness without any deterioration in
image quality.
As a result, Sony has succeeded in equipping
its LCD modules with a new "low power
mode", which enables brightness equivalent
to that of conventional RGB LCD modules
and even reduces the power consumption of
the backlight by about 50%. There is also an
"outdoors mode", which successfully improves
outdoor visibility of the display by enhancing
the display brightness to roughly double, even
without any additional power. Consequently,
the "low power mode" extends device battery
life, while the "outdoors mode" facilitates
camera focusing and checking images even
under strong sunlight. (See figure 1.) |
| Full VGA High-Resolution LCD Panel |
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The new ACX432AKM is a full VGA LCD
module with 1.23M pixels (640 × RGBW × 480),
a high-resolution display (271 ppi) capable of
reproducing fine detail. |
| Vistarich™, an LCD Mode Providing Wide
Viewing Angle and High Contrast Ratio |
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The new LCD module also employs
Vistarich™, an LCD mode that provides wide
viewing angle and high contrast ratio. Sony
achieved a viewing angle of 160° (CR>100)
and a contrast ratio of 1000:1. (See figure 2.) |
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•••• Mr. Sakai ••••
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Combining the new "RGBW method"
and Sony's unique signal processing
technology, we successfully eliminated
the image quality degradation that is
typical of an RGBW LCD panel. With
the technology, we have developed a
high quality LCD module that has higher
brightness, less power consumption and
higher resolution. Because all signal
processing systems are embedded in the
module, customers can use the module
like a normal LCD module. We believe
this new LCD module WhiteMagic™ is
exactly what you have been looking for. |
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See
all articles with figures and tables.  |
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Vol.66 |
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