A computer system is provided that generates images based on execution of an application program such as a video game. When required, images are generated by blending the image data of two successively generated images, with one of the images (e.g., the current or previous image) having a blend factor applied thereto. After a threshold number of images has been blended in this manner, the process switches to applying the blend factor to the other one of the images.

A screen saver controller including a load calculator configured to generate load data of an image represented by input image data, a maximum gray level calculator configured to generate maximum gray level data of the image represented by the input image data, and a screen saver data generator configured to determine a gain of a screen saver mode based on the load data and the maximum gray level data when the screen saver mode is operated and to generate screen saver data based on the input image data and the gain.

A liquid crystal apparatus includes a liquid crystal layer, a pixel electrode provided in a display region and configured to be supplied with an image signal at a first frequency, and a first electrode provided in a region outside the display region and configured to be alternately supplied with a positive polarity potential with a potential higher than a predetermined potential and a negative polarity potential with a potential lower than the predetermined potential at a second frequency lower than the first frequency such that a positive polarity period in which the positive polarity potential is supplied and a negative polarity period in which the negative polarity potential is supplied have a same length.

A display panel and a display device are provided. The display panel includes a common electrode layer, a power management chip, and a time schedule controller. By configuring the common electrode layer into a plurality of common electrode partitions, and by adjusting a feedthrough voltage according to a feedback voltage of each of the common electrode partitions, a DC voltage in each of the common electrode partitions can be maintained as a better value, thereby weakening or eliminating a problem of image sticking.

The present disclosure generally relates to techniques and user interfaces for transitioning between a standard display mode and a low power display mode.

Disclosed are a device and method for measuring an organic light emitting diode, which measures an amount of energy for compensating for a burn-in of an organic light emitting diode, by sensing a charged voltage of a sensing line connected to the organic light emitting diode. The device for measuring an organic light emitting diode includes an external current source, and is configured to measure an amount of energy for compensating for a burn-in, by sensing a charged voltage of a parasitic capacitor of a sensing line.

A display driver includes: a conversion part which converts first to n-th display data pieces representing a brightness level of each pixel based on an image signal into first to n-th gradation voltages each having a voltage value corresponding to the brightness level and outputs them, where n is an integer of 2 or more; a polarity inversion signal generation circuit which generates a polarity inversion signal for prompting polarity inversion for each frame display period according to the image signal; a first external terminal which receives an operation mode signal representing a test mode or a normal mode; and a first selector which receives a test polarity inversion signal and the polarity inversion signal, selects and outputs the polarity inversion signal when the operation mode signal represents the normal mode, and selects and outputs the test polarity inversion signal when the operation mode signal represents the test mode.

A liquid crystal display apparatus switches modes from a normal display mode to a stop preparation mode when a main power source voltage drops. In the display mode, a gate drive circuit sequentially applies a first gate-on pulse to gate bus lines so as to select pixel rows sequentially, and applies a second gate-on pulse to buffer capacitor scanning lines, each of which is associated with a pixel row selected by the first gate-on pulse, during a period that does not overlap a period during which the first gate-on pulse is applied, and a source drive circuit applies a display signal voltage to source bus lines. In the stop preparation mode, the gate drive circuit sequentially applies the first gate-on pulse to the gate bus lines so as to select the pixel rows sequentially, and applies the second gate-on pulse to the buffer capacitor scanning lines, each of which is associated with the pixel row selected by the first gate-on pulse, during a period that at least partially overlaps a period during which the first gate-on pulse is applied, and the source drive circuit applies 0 V to the source bus lines.

A color compensation method includes obtaining a target brightness, a target frame rate and a target pulse number; selecting a plurality of second gamma groups from a plurality of first gamma groups according to the target brightness and the target pulse number, wherein the plurality of first gamma groups respectively correspond to a plurality of frame rates; and calculating the compensation value to compensate the display brightness and color according to the target brightness, the target frame rate, the plurality of second gamma groups and a calculation method.

A display device includes: a display panel, which displays an image; a panel driver, which drives the display panel; and a driving controller, which controls a drive of the panel driver. The driving controller includes a compensation determination block and a data compensation block. The compensation determination block is activated after a still image is displayed for a predetermined time or more and generates a compensation value based on a final afterimage component calculated using an afterimage algorithm obtained by a combination of a first afterimage calculation equation and a second afterimage calculation equation. The data compensation block receives an image signal with respect to a target image and reflects the compensation value to the image signal to generate a compensation image signal.