The present disclosure discloses a timing controller of a display device having an overdriving function. The timing controller includes a data reception circuit configured to receive display data, an overdriving circuit configured to perform overdriving on display data, and a data transmission circuit configured to transit overdriven display data.

A display driving circuit configured to drive a display panel to display a video is provided. The display driving circuit includes a compensating circuit and a gamma voltage generating circuit. The compensating circuit is configured to receive a voltage compensating map of each frame of the video and a pixel line address. The compensating circuit determines a voltage compensating value of each pixel line according to the voltage compensating map of each frame and the pixel line address. The compensating circuit generates a compensated gamma curve of each pixel line. The gamma voltage generating circuit is coupled to the compensating circuit. The gamma voltage generating circuit is configured to generate a gamma voltage of each pixel line according to the compensated gamma curve.

Apparatus comprises an image processor configured to provide output video images to a head mountable display, HMD, having one or more display elements to display video images to a wearer of the HMD, for display by the one or more display elements in response to input video images, in which each output video image corresponds to a respective input video image; in which: the image processor comprises a detector configured to detect whether an input image brightness at image locations in the input video images exceeds a threshold image brightness; and the image processor is configured to vary a relationship between the display properties at a given image location in a given output video image and the input image display properties at the given image location in the corresponding input video image in response to a detection that image brightness at the given image location in one or more input video images preceding that corresponding input video image exceeded the threshold image brightness.

Provided is a device for controlling luminance of a display, having a simplified ACL circuit compared to the prior art. The device for controlling luminance of a display calculates the average luminance (Y_avg) when video data is input, and determines the luminance variation (ΔY) according to the average luminance. The device for controlling luminance of a display may adjust the luminance of a display by controlling a current (driving current) that is used to drive a light-emitting diode included in a pixel, instead of modifying video data for the adjustment of luminance. That is, unlike the prior art, the device for controlling luminance of a display does not modify video data, for the control of luminance.

A display device, a gate drive circuit, a shift register and a control method are disclosed. The shift register includes a first shift register unit and a second shift register unit, the first shift register unit is configured to write a first control signal to the first node, and write a first clock signal to the first signal output terminal under control of a voltage of the first node; the second shift register unit is configured to write a second clock signal to the second signal output terminal under control of the voltage of the first node; during time of a frame, the first clock signal and a first input signal provided by a first signal input terminal are pulse signals, and the second clock signal is a DC signal.

The present application discloses methods for debugging and using an overdrive brightness value look-up table, and a display panel. The debugging method includes the following steps: measuring actual brightness by exhaustively enumerating all gray scales in an available gray scale range at a preset gray scale interval as a gray scale M of a previous frame, and exhaustively enumerating all the gray scales in the available gray scale range at the preset gray scale interval as a target gray scale N of a current frame, and correspondingly recording all actual brightness values in the overdrive brightness value look-up table.

A display device including: a display panel including first through N-th pixel rows; and a panel driver configured to sequentially receive first through N-th line data for the first through the N-th pixel rows in each frame period, and to drive the display panel based on the first through the N-th line data, the panel driver including: a current control circuit configured to determine a current control value for a (K+1 )-th pixel row based on the first through K-th line data for the first through K-th pixel rows received in a current frame period and (K+1 )-th through the N-th line data for the (K+1)-th through the N-th pixel rows received in a previous frame period; and a data correction circuit configured to correct the (K+1)-th line data for the (K+1)-th pixel row based on the current control value in the current frame period.

Techniques are described for enhancing the perceived gamut (PG) of a physical display device presenting frames of an image sequence to a human viewer wherein the gamut (DG) of the display device is given by the primary colors of the display device. An interface receives a sequence of frames from an image sequence source with each frame having input color data associated with each pixel of the respective frame. A white point computation module computes frame-specific target white points (TWP) to which the viewer would adapt when watching a respective frame on a display capable of showing all perceivable colors. A chromatic adaptation transformation module applies a temporal filter function to the target white points of all frames within a sliding window to compute a filtered white point and applies a chromatic adaptation transformation to one or more future frames by using the filtered white point.

A display method is provided. The display method includes: obtaining information of a target display array on a display device, the target display array including a first number of display units arranged; obtaining target pulse sequences that characterize dynamic spatiotemporal information; determining display state information of each display unit in the first number of display units from a spatiotemporal relationship between the target pulse sequences and the target display array; and causing visualization of pulse signals in the target pulse sequences on the display device based on the display state information of each display unit in the first number of display units.

The present disclosure discloses a display device and a driving method of the display device. The display device includes a display panel for displaying an image, a driver for driving the display panel, a controller for controlling the driver, and a duty cycle controller for defining an unknown area in which vertical resolution information is not known and a known area in which the vertical resolution information is known within one frame when a driving frequency of the display panel is changed, and varying a duty cycle for driving the known area.