Display driver

Abstract: This disclosure generally relates to display driver circuits for electro-optic displays, and more particularly relates to circuits and methods for driving active matrix organic light emitting diode displays with greater efficiency. A display driver for an electroluminescent display, the display including a plurality of electroluminescent display elements each associated with a display element driver circuit, each display element driver circuit including a drive transistor having a control connection for driving the associated display element in accordance with a voltage on the control connection, the display driver including at least one display element brightness controller to provide an output to drive a control connection to control the electroluminescent output from a display element; a voltage sensor to sense the voltage on a control connection; and a power controller for controlling an adjustable power supply for providing an adjustable voltage to the electroluminescent display to power said drive transistors for driving said display elements, the power controller being configured to provide a control signal to adjust said power supply voltage in response to said sensed voltage.

Abstract: A method for operating a computer through a touch sensitive display interface includes displaying a computer generated graphical image on a touch sensitive display using display software. The display software includes programs used to display the graphical image (e.g., display driver and web browser), and is responsive to inputs at a first, active portion (e.g., coinciding with toolbars, hyperlinks) of the touch sensitive display when the graphic image is displayed, and is non-responsive to a second, inactive portion. In the method, an input character is received at the second, inactive portion of the touch sensitive display, and is compared to a stored command character that is associated with a separate corresponding computer command. The separate corresponding computer command is executed if the input character matches the command character. In one embodiment, one particular input character results in emulating a right mouse button by displaying a submenu of shortcut icons, and the method is implemented by operation of a computer program in a mobile station.

Abstract: The invention consists of an eyetracker, a display driver, an adaptive display interface controller, and a digital computer. A user of the invention can operate a heads-up display (or a head mounted display) with an eyetracker, leaving his hands free to perform a manual control task. The user selects a display element from an array of choices on the heads-up display by gazing at an element while he activates a confirming mechanism. Both tasks share a common visual working area with overlaid visual images, and task interference is reduced since eye-movements and visual attention are dedicated to the same display surface. The adaptive display interface automatically aids the user in display operations during high manual task loading. The adaptive interface is driven by an electronic Expert System on human visual processes programmed as a Fuzzy Logic controller. The controller generates display cueing aids, under computer control, in response to the erratic eye movement patterns that occur during cognitive conflict. The cueing aids help the user to operate the display with a sequence of discrete eye gazes and confirming actions which only momentarily interrupt the manual control task. As cueing aids, the invention provides a timing logic for element enhancement, and display markers for task feedback. While the aids would be disruptive at low cognitive loading, they provide necessary timing and memory prompts at high loadings. The element enhancement timing logic allows the user to momentarily look at the display and then return his attention to the tracking task before executing confirmation. The display cues show the user where he is looking on the display relative to the element to be selected.

Abstract: A display driver instructed by a host computer to perform a display operation uses an object analyzer to determine whether the file of an object to be displayed possesses three-dimensional image data. If the file possesses three-dimensional image data, then the display drive instructs a screen controller to present a three-dimensional display. In response, the screen controller uses an image painting unit and a checkered mask-pattern painting unit to present a three-dimensional display in a display area of the file on a stereoscopic display screen.