A touch screen system typically consists of an LCD or organic light-emitting diode (OLED) display, a touch-sensitive panel, a protective cover lens, and a touch-screen controller. Avago's multi-touch, capacitive touch-screen controller has been specifically designed to offer highly accurate, responsive, and fluid on-screen navigation to greatly enhance the end user's experience. Other key features of Avago's touch-screen interface include 500 dpi resolution for jitter free smooth tracking; hover rejection, and palm detection to prevent false touch responses; good adjacent touch resolution for finer screen features and sensitivity; and 13-in. per second tracking speed to provide screen navigation that is fast, responsive, and suitable for gaming applications.
Designed for ease of adoption and manufacturing, Avago's touch-screen interface does not require any touch-sensitivity scaling, noise tuning, or capacitive balancing. It also has a robust design that allows for flexible ASIC placement on flex or printed circuit boards. To simplify the assembly process, the device has a patent-pending, built-in self test for panel indium tin oxide breakage open/shorts, which means no application test fixture is required, resulting in scalability and quick turnaround of sensor panel prototypes and efficient manufacturing. Panel integrity tests can also be run on devices in the field. Moreover, the touch screen controller offers configurable registers for customization and debugging, and pairs with both glass and polyethylene terephthalate sensor panels. In addition to these key product features, a complete development kit, which includes software and sensor panel design guides, is provided to further ease the implementation of the capacitive touch panel into customer designs.
"Today's announcement of our new touch screen panel is yet another example of technology leadership in this market, and helps to reaffirm our position as a major supplier of navigation interfaces to all the major smartphone and mobile communications handset manufacturers," said Khin-Mien Chong, Vice President and General Manager, Navigation Interface Division, Avago Technologies. "Our touch-screen interface controller is designed to enhance the overall touch-screen experience."
Avago's new capacitive touch-panel controller is currently shipping to one of the world's leading portable media player manufacturers and receiving excellent industry reviews for its multi-touch performance. Additionally, several key mobile handset manufacturers are currently sampling Avago's touch-screen controller for use in their next-generation designs.
Avago Technologies is a leading supplier of analog interface components for communications, industrial, and consumer applications. By leveraging its core competencies in III-V compound and silicon semiconductor design and processing, the company provides an extensive range of analog, mixed-signal, and optoelectronics components and subsystems to approximately 40,000 end customers. Backed by strong customer service support, the company's products serve four diverse end markets: industrial and automotive electronics, wired infrastructure, wireless communications, and consumer and computer peripherals. Avago has a global employee presence and heritage of technical innovation dating back 40 years to its Hewlett-Packard roots.