Abstract: A method and system are provided for compensating for brightness changes in a display having an array of display pixels. The method includes storing a plurality of look-up tables, where each table has a plurality of brightness signals that provide compensation for a brightness change when the refresh rate is changed during a panel self-refresh. The method also includes using display control circuitry to determine the refresh rate associated with an input signal and to determine a compensation based on the refresh rate. The display control circuitry may, for example, use non-linear interpolation to generate a look-up table for the refresh rate. The display control circuitry may adjust the input signal based on the look-up table to produce an output signal that compensates for a brightness change at the refresh rate. The output signal may be transmitted to the array of display pixels.

Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.

Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.

Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.

Abstract: An electronic device may include a display and display control circuitry. The display may be calibrated to compensate for changes in display temperature. Display calibration information may be obtained during manufacturing and may be stored in the electronic device. The display calibration information may include adjustment factors configured to adjust incoming pixel values to reduce temperature-related color shifts. During operation of the electronic device, display control circuitry may determine the temperature at different locations on the display. The display control circuitry may determine the temperature at a given display pixel using the temperatures at the different locations on the display. The display control circuitry may determine adjustment values based on the temperature at the display pixel. The display control circuitry may apply the adjustment values to incoming pixel values to obtain adapted pixel values, which may in turn be provided to the display pixel.

Abstract: An electronic device may include a display and display control circuitry. The display may be calibrated to compensate for changes in display temperature. Display calibration information may be obtained during manufacturing and may be stored in the electronic device. The display calibration information may include color-specific adjustment factors configured to adjust display colors and reduce temperature-related color shifts. During operation of the display, the display control circuitry may receive input pixel values for a display pixel. The display control circuitry may also receive display temperature information from a temperature sensor in the electronic device. The display control circuitry may determine adjustment factors based on a color associated with the input pixel values and the display temperature information. The display control circuitry may apply the adjustment factors to the input pixel values to obtain adapted pixel values. The adapted pixel values may be provided to the display pixel.

Abstract: An electronic device may include a display and display control circuitry. The display may be calibrated to reduce color non-uniformity in the display. Display calibration information may be obtained during manufacturing and may be stored in the electronic device. The display calibration information may include color-specific, intensity-specific, location-specific correction factors. During operation of the display, display control circuitry may receive pixel data to be displayed by each pixel in the display. The pixel data may include color information and intensity information for each pixel. Based on the color information for each pixel, the intensity information for each pixel, and the location of each pixel in the display, the display control circuitry may determine a color-specific, intensity-specific, location-specific correction factor to apply to the pixel data for each pixel. Adapted pixel data may be supplied to each pixel in the display.

Abstract: A method and system for displaying an image on a liquid crystal display (LCD) that may reduce power consumption. The method and system can include calculating a luminance for pixels in an image in a LCD based upon a light spread function and brightness values of light emitting diodes (LEDs). The method and system can also include changing a brightness of an LED based upon a consideration of the gray value of the pixels and the distance of the pixels from a dominant LED. The method and system can further set the brightness of the LED units to a brightness or brightness value substantially greater than or equal to a gray value of each pixel of the image.

Abstract: A method is provided for automatic shutdown of an internal combustion engine in a motor vehicle, in particular in a vehicle having an automatic transmission, by way of a stop-start unit which automatically shuts down the internal combustion engine when the vehicle is decelerated to a standstill and kept at a standstill by operation of the brake pedal for a predetermined interval of time. Within the predetermined interval of time, the driver is given an opportunity to prevent the automatic shutdown. According to the invention, an automatic shutdown is prevented when the driver of the vehicle depresses the brake pedal fully within the predetermined interval of time and then releases the brake pedal again.

Abstract: A method is provided for automatic shutdown of an internal combustion engine in a motor vehicle, in particular in a vehicle having an automatic transmission, by way of a stop-start unit which automatically shuts down the internal combustion engine when the vehicle is decelerated to a standstill and kept at a standstill by operation of the brake pedal for a predetermined interval of time. Within the predetermined interval of time, the driver is given an opportunity to prevent the automatic shutdown. According to the invention, an automatic shutdown is prevented when the driver of the vehicle depresses the brake pedal fully within the predetermined interval of time and then releases the brake pedal again.

Abstract: A method and system for displaying an image on a liquid crystal display (LCD). The method and system can include calculating a luminance for pixels in an image in a LCD based upon a light spread function and brightness values of light emitting diodes (LEDs). The method and system can also include changing a brightness of an LED based upon a consideration of the gray value of the pixels and the distance of the pixels from a dominant LED. The method and system can further set the brightness of the LED units to a brightness substantially greater than or equal to a gray value of each pixel of the image.

Abstract: A method and system for displaying an image on a liquid crystal display (LCD). The method and system can include calculating a luminance for pixels in an image in a LCD based upon a light spread function and brightness values of light emitting diodes (LEDs). The method and system can also include changing a brightness of an LED based upon a consideration of the gray value of the pixels and the distance of the pixels from a dominant LED. The method and system can further set the brightness of the LED units to a brightness or brightness value substantially greater than or equal to a gray value of each pixel of the image.

Abstract: A device for controlling an internal combustion engine of a motor vehicle, including a control unit for monitoring and limiting the rotational speed of the internal combustion engine that are designed in such a manner that after a predetermined first speed threshold an integral formation of the current present values over time occurs, and that, on reaching a predetermined integral limit value, the rotational speed is automatically limited.

Abstract: A device for controlling an internal combustion engine of a motor vehicle, including a control unit for monitoring and limiting the rotational speed of the internal combustion engine that are designed in such a manner that after a predetermined first speed threshold an integral formation of the current present values over time occurs, and that, on reaching a predetermined integral limit value, the rotational speed is automatically limited.