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Mass production models |
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Sunlight Readable Upgrade |
Upgraded models |
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LCD-Module upgrade: |
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TBU (transflective & brightness upgrade) |
Mitsubishi/Optrex
8.4"/10.4" XGA |
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LRU (low reflection upgrade) |
NEC
8.4"/10.4" XGA |
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AUO
5.7"/7.0"/8.4"/10.4"/12.1" SVGA/VGA |
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Samsung
15.0"/17.0"/21.0" |
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AUO
15.0"/17.0"/21.0" |
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Custom-made Touch Screen upgrade: |
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LRU (low reflection upgrade) |
Poson
5.7"/7.0"/8.4"/10.4"/12.1" |
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What is Poson sunlight readable technology ? |
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Transflective LCD technology can be applied to
certain selected regular TFT LCD to introduce |
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the LCD with a reflective function.
With the imposed reflective function, the
modified |
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LCD can reflect the ambient light passing the
LCD cell and utilize the reflected light beams |
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as its illumination.
The stronger the ambient light is, the
brighter the LCD will appear. |
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As a result, the modified LCD is viewable under
lighting conditions including direct sunlight. |
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How does this technology work ? |
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Transflective LCD modules hold both transmissive
and reflective properties, and the method |
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of image display depends upon the conditions of
the ambient environment.
The display uses |
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a backlight with a transmissive property in dark
environments, and uses external light with a |
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reflective property in bright environments.
Our improved transflective method allows
for better |
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color performance, which provides excellent
color characteristics similar to the
transmissive mode. |
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The net reflectance rate of our transflective
LCD solution is from 0.9% to 1.3% varied from |
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panels selected. |
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Technology / Function Diagrams |
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Handling Cautions  |
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Keep temperature at 0~50xC (32-121xF) and avoid
direct sunlight on the display. |
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Although transflective LCD is mainly used in
outdoor environment and can increase the
effective |
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lights under sunlight, it is suggested the user
should keep the LCD in proper temperature for |
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operation and storage.
To ensure the transflective LCD work
stably, it is needed the thermal |
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solution in order to ensure display can work
stably on 0~50xC. |
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Arrange proper contrast ratio to ambient light |
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Contrast ratio is a critical factor that can
influence the readability.
For example, if you put the |
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LCD in very high ambient light environment; even
the brightness of display is pretty high; the |
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the contrast between the ambient and the display
is too low.
Therefore, we might not be able |
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to see the clear LCD screen image.
In order to be sunlight readable, the
contrast ratio to the |
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ambient light need to be in proper range. |
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Use touch or low reflection rate |
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If you demand for built-in protection glass, it
is needed to use the material whose reflection |
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rate is less than 1%.
It should be careful when using
protection glass.
Generally, the reflection |
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rate of protection glass can be as high as 4~6%,
but we can provide the reflection ration glass |
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which is less 0.6%, so that the sunlight
readability performance can work very well. |
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Applications |
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Here are some of the examples for your
reference. |
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Commercial: |
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PDA |
Mobile |
Monitor |
Mobile control system |
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Notebooks |
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Portable DVD Player |
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ATM |
Motocycle |
Camera |
Fish Finder |
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Marine/Car Navigation System |
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Military: |
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Rugged Notebooks |
Airborne |
Security Systems |
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Hand-held Devices |
Unmanned Aircraft Control Station |
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Industrial: |
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Kiosks |
Security Systems |
Point-of-Sales |
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Gas Pump |
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