Nearly all the beauty of the touchscreen devices is in a good response time. If the touchscreen of a tablet or, say, a smartphone lags, that is very vexing for the user. Nvidia is working precisely on this, to enhance the response time and performance of the touchscreen. The solution Nvidia is working on involves a DirectTouch architecture based on a Tegra 3 chip that separately process input. Now, Synaptics and a number of others have jumped the bandwagon for this project.
The companies that have so far expressed an interest and support for Nvidia’s project include Synaptics, Atmel, N-Trig, Cypress, Raydium and Focaltech. These companies will be aiding Nvidia by building controllers for the technology.
What is unique and exciting about the DirectTouch technology is that it utilize a separate, low-power core on the Tegra 3 chip to deal with the touchscreen. Current devices usually operate by having the touchscreen mechanisms handled by a discrete module. Nvidia takes a step further by letting the processing for touchscreen input be handled by primary cores on Tegra 3 when heavy-duty programs are being used on the device. This ensures that even under pressure, touchscreen processing doesn’t register any lag.
According to Nvidia, this new technology for touchscreen processing will be particularly useful for multiple fingers input scenarios since Tegra 3 has the capability of taking far greater load than many contemporary processors being used. It will also enhance the internal design and improve battery life of touchscreen devices. Although so far a Tegra 3 device with the DirectTouch technology hasn’t been publicly viewed, it is being hoped that Nvidia will unveil it during the on-going MWC 2012.