Date: 15/11/2011

Single chip touch controller from Cypress for large screens

Cypress Semiconductor Corp. has announced the CY8CTMA884 family the single-chip TrueTouch controllers for large touchscreens, which enables large-screen sensor-on-lens technology with direct lamination to the LCD. Cypress explains that with this technology, manufacturers can deposit the conductive Indium Tin Oxide (ITO) sensor lines directly onto the cover glass and only requires one panel, so tablets can be made much thinner, with less material costs and fewer manufacturing steps.

The CY8CTMA884 is developed to enable the cover glass to be directly laminated to the LCD with a very thin adhesive layer and no added shield layer. Many other solutions fail in this configuration because the increased electrical noise from proximity to the screen interferes with the ability to correctly interpret touches, as per Cypress.

"We're pleased to enable our customers to enjoy the benefits of sensor-on-lens technology, including thinner devices and lower costs," said Derek Richardson, Senior Director of Cypress's Large Touchscreen Business Unit. "TrueTouch led the industry by providing the first single-chip solution for large touchscreens, and we are doing so again with superior noise immunity and signal-to-noise ratio enabling economical and sleek new tablets."

Cypress says the high-performance, single-chip CY8CTMA884 TrueTouch solution for large multitouch touchscreens up to 11.6 inches offers 60 sensing I/O channels with support for up to 884 nodes on the screen, more than any other single-chip solution. The CY8CTMA884 supports 10-finger touch, low power consumption, grip and palm rejection, high accuracy, and fast scan times.

These devices are in full production today.