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(Hong Kong – 25 May, 2009)
Solomon Systech today announced a Capacitive Touch Panel
Controller of true multi-touch function for up to 7" WVGA display panel. It can detect 4 fingers
movement at the same time and therefore can create many
fascinating functions such as dragging and enlarging
image with simply fingers pressing on display screen.
A user-friendly interface is
always a successful factor of a handheld product design
and the touch panel is probably a most welcome solution
that provides substantial flexibility for a fancy
interface design. Generally, resistive touch
panels are adopted in touch interface designs, but are
increasingly changing to capacitive touch panels due to
the benefits of better durability and higher optical
clarity. Besides these physical advantages,
capacitive touch panels scale new heights in realizing
multi-touch application, which has changed the
perception of the touch panel interface. With such
distinctive features, the capacitive touch panel will
become a mainstream touch technology and bring the
market lots of innovative touch interface designs.
The capacitive touch panel
controller SSD2521 from Solomon Systech is a touch
interface solution to fulfill the latest market needs.
This controller integrates all the necessary components
and functions into a single chip such as power circuits,
panel driving and sensing circuits, high resolution ADC,
fast response digital signal processor (DSP) and finger tracking unit.
To support high accuracy and fast touch detection, the
DSP adopts several arithmetic algorithms for
finger extraction and tracking. It tracks maximum
four fingers simultaneously and reports the absolute
coordinate of each finger. In addition, it can
detect individual touch incidents and events based on
the tracked finger coordinates. SSD2521 supports
true multi-touch and can drive up to 7" capacitive
touch panels on a WVGA display. SSD2521 is an
easy-to-use touch panel controller with excellent cost
performance.
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