IDT Introduces Industry’s First Single-Layer Multi-Touch Capacitive Touch Screen Controller

The IDT LDS7000 and LDS7001 are high-performance, multi-touch, full resolution touch screen controller ICs featuring up to 30 and 35 sensor channels, respectively. Both controllers operate at a speedy 8ms data rate for quick response to touch inputs to improve the user’s experience and enable advanced applications that require fast response times. The IDT LDS7000 family’s proprietary algorithms eliminate undesired multi touch ghosting, providing accurate individual X and Y coordinates in dual touch mode, a critical requirement for customers using host-interpreted custom gestures to differentiate their end product. The devices’ analog front-end design provides a high level of noise rejection performance that negates the need for a separate touch screen shield layer for most applications, lowering the overall solution cost even further.

“The new LDS7000 family of touch controllers enables our customers to take full advantage of IDT’s true single-layer touch screen technology,” said Alvin Wong, general manager of the Advanced User Interface group at IDT. “Our innovative design and multi-touch capabilities allow touch screen manufacturers to simplify their manufacturing processes, yet maintain the critical feature set that is required for today’s most advanced consumer devices. IDT continues to extend its presence in breakthrough capacitive touch technologies and designs that improve the user experience, so our customers can deliver winning products to the market.”

“The market for multi-touch capable controllers continues to expand based on increasing adoption rates across the globe of smartphones, and since 2010, an exploding market for media tablet PCs, “ said Randy Lawson, Principal Analyst, Display Electronics at iSuppli Corporation. “As screen resolutions and application processor data rates continue to climb in these applications, the ability to discern and reject injected noise at the controller has become a more compelling feature for device manufacturers when selecting their touch screen controller IC provider.”

The IDT LDS7000 and LDS7001 devices offer native support for a 10-bit resolution (1024 x 1024) with the ability to scale the touch values of the X and Y axes, offering the flexibility to apply this solution to different resolution LCD and AMOLED panels. In addition, the single-layer solution offers improved backlight transmittance, while the devices’ low power modes maximize battery life in portable electronics.