Kindly note that you can opt out of this service at any time, simply by
clicking on the SafeUnsubscribe link below.
|
High-brightness colour TFT displays and polariser touch panels
|
|
If a standard colour TFT
is simply too dim for use in your equipment then why not try one of our latest
high-brightness products.
The displays shown in the table below range in physical sizes from 6.4" to
12.1" diagonal,
with resolutions up to 1024*RGB*768 pixels, and include a white LED backlight
for maximum efficiency.
|
|
HIGH-BRIGHTNESS COLOUR TFT LCD
|
|
Size
|
Model
|
Resolution
WxH pixels
|
Input system
|
Active area
WxH mm
|
Outline
dimensions
WxHxD mm
|
Additional
features
|
|
6.4"
|
PD064VT7
|
640x480
|
Digital (TTL)
4
|
129.60x97.44
|
175.4x126.9x12.5
|
Brightness 1200 cd/m
2
(white
LED) Wide V.A
|
|
7.0"
|
PM070WX9
|
800x480
|
Proprietary RGB
3
|
152.40x91.44
|
165.0x104.0x5.8
|
Brightness 1000 cd/m
2
(white
LED) Wide V.A
|
|
8.0"
|
PD080SL2
|
800x600
|
Digital (LVDS)
4
|
162.00x121.50
|
200.0x152.0x10.5
|
Brightness 1200 cd/m
2
(white
LED) Wide V.A
|
|
10.4"
|
PD104SLG
|
800x600
|
Digital (LVDS)
4
|
211.20x158.40
|
243.0x185.1x10.5
|
Brightness 1400 cd/m
2
(white
LED) Wide V.A
|
|
12.1"
|
PD121XL2
|
1024x768
|
Digital (LVDS)
4
|
245.76x184.32
|
260.5x204.0x12.17
|
Brightness 1400 cd/m
2
(white
LED) Wide V.A
|
|
Notes:-
3. Requires optional controller board for VGA, composite video & audio,
or TTL interface - or timing controller chip for a fully integrated design.
4. Also available with VGA, or composite video & audio interface, via
an optional external controller board.
|
|
|
|
If you need display and touch panel solutions for applications that require
excellent sunlight readability then reflections are the real problem.
|
|
|
|
As shown in the diagram below, a resistive touch panel has
four surfaces that reflect light back to the user
(R1 through R4). A surface reflects light
when there is a difference in the refractive
index of the material versus air. In a touch
panel which is not enhanced, the amount of
incident light reflected by each surface is approximately 4%, 7%, 7%
& 4% respectively, totaling 22%. The surface of an untreated
LCD (R5) can also reflect about 4% of
the light, giving a grand total of around 26%. If
the touch panel is being used in ambient light
of 30,000 lux (moderate sunlight), the amount
of light reflected back to the user is about
2500 cd/m2
which is normally greater than the luminance of the LCD itself. In extreme
cases, this results in
the effective contrast ratio of the display being
reduced almost to 1.0, thereby making it
unreadable.
|
|
|
|
|
Our highly transmissive circular polariser touch
panels are made for direct sunlight conditions and achieve a 76% transmissivity
rate. They come in a range of standard sizes or can be fully customised to suit
your specific requirements.
By combining circular polariser technology with anti-reflection coatings, total
touch panel reflections (R1 through R4) can be reduced to less than 1%.
|
|
|
|
|
If you require further details on any of the above, or would like to
see demo units and perhaps obtain samples, then our sales team would be happy
to help with your enquiry.
|
|
|
|
