Patent ID: 8560947

Claim:
An integrated display and touch screen control system for a portable computer of the type which includes a host central processing unit (CPU), a display screen, and a touch sensor having a sensing region overlaying the display screen, the integrated control system comprising: a touch sensor controller configured to operate the touch sensor to sense user input at the display screen; a display controller configured to operate the display screen to display images; and a central display and touch screen controller configured to control communication between the host CPU and each of the display controller and touch sensor controller; wherein the integrated display and touch screen control system is configured to: receive a sequence of images from the host CPU for display on the display screen; interpose an image, without further participation from the host CPU, into the sequence of images in response to user input sensed by the touch sensor; and cause the sequence of images including the interposed image from the touch screen control system to appear on the display screen.