ams Integrated Color Sensor Drives New Intelligent Display Management in Smartphones and Tablets
May 12 2014 - 6:02AM
Business Wire
ams TMD3782 digital sensor optimized for use in mobile
devices combines ambient light, color and proximity
sensing
ams AG (SIX: AMS), a leading provider of high performance analog
ICs and sensors, today announced the industry’s first integrated
ambient light, color (RGB) and proximity sensor that is optimized
for operation behind dark glass to drive intelligent display
adaption in mobile devices.
The TMD3782 optical module is ideally suited for smartphones and
tablets. The sensor integrated in the TMD3782 provides ambient
light intensity (lux) and color measurement enabling mobile devices
to automatically adjust their display’s color and brightness for
the best viewing experience and power savings.
High-resolution displays are now standard features in mobile
devices, making it critical they provide accurate colors and
brightness while operating in a wide range of light sources,
including fluorescent, incandescent and sunlight. The TMD3782
on-chip filters minimize the effects of ultra-violet and IR light
and enable its photopic response thus improving the overall
accuracy of light and color sensing.
Enhancing the user’s viewing experience across a wide range of
lighting conditions offers mobile device manufacturers new means to
draw consumers to their brand. The TMD3782 is able to sense light
in a similar manner to the human eye, enabling more sophisticated
control of the display brightness and color. The combination of
ambient light and color sensing enables mobile devices to deliver
more brilliant display colors and a superior viewing experience in
all lighting environments.
“The adoption of the TMD3782 by manufacturers validates the
industry trend of increasing intelligence in display management in
smartphones and tablets,” said Darrell Benke, Senior Marketing
Manager for optosensor products at ams. “Consumers will choose
devices which provide the best user viewing experience through
automatic adjustment of display color as well as brightness.”
The TMD3782 packs the ambient light, color and proximity sensor,
IR LED and optical lenses in a 3.9 x 2.4 x 1.4mm module suitable
for mounting in the densely populated and low-profile board
assemblies commonly found in mobile devices. The sensor’s
integrated proximity sensor can be used to simplify a product’s
user interface, for instance, supporting intelligent on/off control
of smartphone touchscreens. The device’s integrated proximity
sensor also allows tablets to eliminate false ambient light sensing
measurements by detecting when the user’s hand or finger is
blocking light from reaching the sensor. The proximity detection is
factory-calibrated to a distance of 100mm, eliminating the need for
OEMs to perform production-line calibration, and simplifying
end-product manufacturing.
The TMD3782 sensor’s photodiodes have a radial structure to
create a uniform and optimized angular response when mounted under
the 360° module lens. The sensor also provides a 45 degree field of
view for a broader and more accurate measurement of the lighting
environment. An interrupt capability enables the sensor to alert
the applications processor when pre-set light and color measurement
thresholds are crossed, eliminating the need for continuous polling
and reducing overall system power requirements and hence extending
battery life.
Price & Availability
The TMD3782 optical sensor module is in volume production and is
priced at $1.45 for 1,000 pieces.
Technical Support
An evaluation kit for the TMD3782 is available online. For
further information please visit
www.ams.com/Color-Sensor/TMD37821.
Download Press Picture or Block Diagram at
http://www.ams.com/eng/Press/Press-Releases/
ams AGPatricia MoosburgerMedia Relationsphone: +43 (0) 3136 500
31235press@ams.comwww.ams.com
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