A data processing apparatus includes allocation circuitry to allocate a graphical feature for a virtual environment to a respective layer from a plurality of respective layers in dependence upon one or more properties for the graphical feature, where the plurality of respective layers comprise a mobile layer and at least one of a mobile re-projection layer and a static re-projection layer, rendering circuitry to render graphical features allocated to respective different layers of the plurality of respective layers with a different rendering quality, and an output image generator to generate an image for display according to a viewpoint of a virtual camera, where the image includes graphical features allocated to respective different layers of the plurality of layers.

A system for producing image frames for display at display device. The system includes graphics processing units including first graphics processing unit and second graphics processing unit that are communicably coupled to each other and pose-tracking means. Second graphics processing unit is configured to: process pose-tracking data, to determine device pose and velocity and/or acceleration with which device pose is changing; execute rendering application(s) to generate framebuffer data corresponding to image frame; and send, to first graphics processing unit, framebuffer data and information indicative of device pose and velocity and/or acceleration. First graphics processing unit is configured to: execute first compositing application to post-process framebuffer data, based at least on said information; and drive light source(s) using post-processed framebuffer data to display image frame.

Provided is a method for driving a transparent display device. The method includes extracting a corneal reflection image, generating a flat target image, generating a background image, and displaying the background image on a transparent display panel. The corneal reflection image includes a target image formed by projecting, on a cornea of a user, a display area of the transparent display panel divided into the display area which displays a display image and transmits light reflected from a background and a non-display area adjacent to the display area. The flat target image is generated by correcting the target image distorted by a curved shape of the cornea. The background image is formed by removing the display image from the flat target image.

The present disclosure relates to a technique for selectively reproducing multiple sounds for respective areas of a display through image analysis for each display area. A technique, for individually controlling multiple audio devices by analyzing an image to extract regions of the image and classifying sound types through data learning, can be provided.

A dynamic voltage controller applied to a display apparatus is disclosed. The display apparatus includes a display panel and a power supply. The power supply is coupled to the display panel. The dynamic voltage controller includes a data analyzing module and a voltage control module. The data analyzing module receives and analyzes an image data to obtain a maximum brightness, an average brightness and an average current to further estimate a minimum driving voltage needed for the display panel to display the image data. The voltage control module coupled between the data analyzing module and power supply is used to output a voltage control signal to the power supply according to the minimum driving voltage, so that the power supply is controlled by the voltage control signal to output the minimum driving voltage to the display panel to drive the display panel to display the image data.

A method of compensating for degradation of a display device includes sensing a first sensing current flowing through a sensing line connected to a pixel, which includes a programming period for writing a data voltage of a predetermined color to a storage capacitor of the pixel, sensing a sensing voltage of the sensing line, which includes a period for charging a line capacitor connected to the sensing line, estimating a voltage of an anode electrode of an organic light emitting diode using a second sensing current estimated from the first sensing current and the sensing voltage, and determining a degradation compensation value using the voltage of the anode electrode.

Disclosed is an electronic device. The electronic device obtains a first histogram regarding a difference in gradation between adjacent pixels of an input image based on the first maximum output brightness, obtains a second histogram regarding a difference in gradation between the adjacent pixels of the input image based on the second maximum output brightness, obtains a third histogram regarding a difference in brightness between the adjacent pixels of the input image based on the first HVS recognition information, obtains a fourth histogram regarding a difference in brightness between the adjacent pixels of the input image based on the second HVS recognition information, and obtains a brightness value regarding the input image corresponding to the second maximum output brightness based on a difference between a first value obtained based on information on the first and third histograms and a second value obtained based on the second and fourth histograms.

A novel data processor which can display a plurality of images arranged in a predetermined order, a novel method for displaying data, or a novel program is provided. The data processor includes an input/output unit which supplies operation instructions, an arithmetic unit which determines data marked as a starting point according to the operation instructions to generate image data, and a display portion which displays the image data.

Disclosed is an electronic device including a display, a display driving circuit which drives the display, and at least one processor operationally connected to the display or the display driving circuit, wherein the at least one processor gives an afterimage risk ranking to each of a plurality of applications, and, when an application given an afterimage risk ranking higher than a designated range among the plurality of applications is executed, generates afterimage data by accumulating images sampled from the execution screens of the application given the afterimage risk ranking higher than the designated range, and delivers the afterimage data to the display driving circuit. Various other embodiments that can be understood through the present specification are also possible.

A display apparatus includes a display panel; and a display driver integrated circuit (DDI) chip coupled to the display panel, the DDI chip being configured to generate a display driving signal for driving the display panel based on image data. The DDI chip may include: a first embedded memory device embedded in the DDI chip and configured to store compensation data for compensating for electrical and optical characteristics of a plurality of pixels included in the display panel; a timing controller configured to control signals for driving the display panel, and to generate a data control signal based on the image data and the compensation data; and a data driver configured to provide a data voltage to the display panel according to the data control signal. The first embedded memory device may not include static random access memory (SRAM).