A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a third electrode connected to a third node; a light emitting element including an anode electrode connected to the third node, and a cathode electrode to which a pixel ground voltage supply voltage is applied; a first switch element configured to supply a data voltage to the second node in response to a scan pulse; and a second switch element configured to supply a first initialization voltage set to a negative voltage that is less than the pixel ground voltage supply voltage to the third node in response to a first initialization pulse.

A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.

An overdrive system includes a compressor that compresses an input signal to result in a compressed signal; a weighting device that generates a weighted sum of a current compressed signal and a current input signal, thereby resulting in a weighted current signal; and an overdriver that performs an overdrive operation according to a previous compressed signal and the weighted current signal.

A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

The present embodiment provides an image data processing apparatus, including a memory storing previous frame image data and an image data compensating circuit configured to generate overdriving image data for current frame image data by comparing the previous frame image data and the current frame image data, wherein the degree of an overdriving is adjusted based on a display brightness value (DBV), which is used for adjusting the brightness of a display panel.

A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

A self-monitoring method of a display and a display are disclosed. The self-monitoring method of a display includes: inputting a first image test signal including a predetermined image test signal; acquiring a display parameter of the predetermined image test signal; dividing at least one frame of image outputted into a plurality of areas, in which the plurality of areas of the image include a predetermined area and a remaining area; acquiring a first display parameter of the predetermined area; comparing the display parameter of the predetermined image test signal with the first display parameter, determining whether or not an image displayed by the display is matched with the first image test signal to acquire a first match result; and determining whether or not display abnormality presents in the display based on the first match result. The method can determine whether or not display abnormality presents in the display.

A method for processing data for display on a screen involves encoding, using a first colour space, a first portion of image data intended to be displayed on a first area of the screen and encoding, using a second colour space, a second portion of image data intended to be displayed on a second area of the screen. The encoded first and second portions of the image data are compressed, and transmitted over a link for display on the screen. By using different colour spaces to encode image data that is displayed in different parts of a screen, differences in a users vision and/or aberrations caused by display equipment may be accounted for and so provide an improved user experience. Using different colour spaces for different screen areas may also reduce the amount of data that needs to be transmitted, for example by encoding image data more effectively and/or allowing more efficient compression of data.

Disclosed embodiments are directed at devices, methods, and systems for fixing distortions of content displayed on in-flight entertainment (IFE) monitors in a commercial passenger vehicle. An IFE monitor can receive angular measurement data from one or more gyroscope sensors to determine a differential angle of tilt of the IFE monitor. In response to determining that the differential angle of tilt is non-zero, the IFE monitor can detect that content displayed on the IFE monitor is subject to distortion. The IFE monitor can automatically apply a perspective correction to the content displayed on the IFE monitor for fixing the perceived distortion.

A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.