G09G2320/04

DIFFERENTIAL INPUT CIRCUIT AND DRIVING CIRCUIT
20210295775 · 2021-09-23 ·

A differential input circuit and a driving circuit including the same are provided. The differential input circuit transforms an analog voltage signal corresponding to a sensing line on an OLED panel to a pair of differential input signals being output to a gain amplifier. The differential input circuit includes a sampling circuit and a scaling circuit. The sampling circuit receives the analog voltage signal and a reference voltage through a first scaling path and a second scaling path, respectively. The scaling circuit includes a first scaling path and a second scaling path. The first scaling path and the second scaling path collectively generate the pair of differential input signals, based on a first shift voltage, a first scaled voltage, a second shift voltage, and a second scaled voltage. The first shift voltage is less than the second shift voltage.

Systems and methods for hiding dead pixels

In one embodiment, a computing system may access a dead pixel position corresponding to a dead pixel of a display. The system may access an image and modify the image by applying a mask to a pixel region of the image containing a particular pixel value with a position that corresponds to the dead pixel position. The mask may include an array of first scaling factors for scaling pixels values in the pixel region. The array of first scaling factors may be configured to brighten one or more of the pixel values surrounding the particular pixel value. The system may cause the modified image to be output by the display.

Gate driver and method of repairing the same

According to an aspect of the present disclosure, there is provided a gate driver and a method of repairing the same. The gate driver can include a plurality of driving stages cascade connected, at least one repairing stage disposed between the plurality of driving stages, and a plurality of repair lines connected to the at least one repair stage. The plurality of repair lines overlap with a plurality of lines connected to the plurality of driving stages. The repairing stage can replace a defective driving stage of the gate driver.

Display device and driving method thereof

A display device includes: a display panel including a plurality of pixels configured to receive pixel driving currents; a current sensor configured to measure an entire driving current diverged into the pixel driving currents; and a temperature sensor configured to measure an ambient temperature of the display panel, wherein the display panel includes a degradation compensator configured to generate output grayscale values for the pixels based on the entire driving current, the ambient temperature, and input grayscale values for the pixels.

SOURCE DRIVER AND DISPLAY DEVICE INCLUDING THE SAME

Disclosed are a source driver for sensing the degree of deterioration in pixels in some regions of a display panel and compensating for the deterioration in the display panel based on the sensed degree, by considering a characteristic in which pixels included in each display panel similarly deteriorate, and a display device including the same. The display device may include a display panel including pixels, a sensing circuit configured to provide sensing data by sensing the degree of deterioration in pixels in at least one first region of the display panel, and a compensation circuit configured to calculate an amount of compensation of each of the pixels in the first region using the sensing data and compensate for the deterioration in the pixels in the first region and pixels in a second region whose degree of deterioration is not sensed, based on the amount of compensation.

DISPLAY DRIVING CIRCUIT, OPERATION METHOD THEREOF, AND OPERATION METHOD OF OPTICAL-BASED MURA INSPECTION DEVICE CONFIGURED TO EXTRACT INFORMATION FOR COMPENSATING MURA OF DISPLAY PANEL
20210264833 · 2021-08-26 ·

An operation method of a display driving circuit configured to drive a display panel includes receiving input data from an external device, determining a gray level period corresponding to the input data from among a plurality of gray level periods, based on a plurality of thresholds, calculating a final compensation value based on the determined gray level period and a reference look-up table generated based on a reference gray level, performing MURA compensation on the input data based on the final compensation value to generate final data, and controlling the display panel based on the final data.

DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
20210183302 · 2021-06-17 ·

A display device including a display panel including scan lines, emission control lines, and pixels connected to the scan lines and the emission control lines; a first emission driver sequentially providing first emission control signals to odd-numbered emission control lines among the emission control lines in a first frame section; a second emission driver sequentially providing second emission control signals to even-numbered emission control lines among the emission control lines in a second frame section that is continuous from the first frame section; and a scan driver sequentially providing scan signals to the scan lines in each of the first and second frame sections.

Display Device and Method for Controlling Same
20210201815 · 2021-07-01 ·

Disclosed herein are a display device and a method for controlling the same, and more particularly, to a display device and a method for controlling the same that may compensate degradation of a display panel and may improve image quality. According to the method for controlling the display device of an embodiment, a pattern image is displayed respectively on a plurality of scan blocks set on the display panel. When the pattern image is displayed respectively on the plurality of scan blocks set on the display panel, a current value of each scan block is measured. Then a representative current value is compared with a predetermined reference value, and it is determined whether compensation data of each pixel included in each of the scan blocks is updated.

DISPLAY DEVICE AND DRIVING METHOD THEREOF

A display device includes: a net power control circuit configured to analyze a screen load from an input image signal to generate a load signal including a load value corresponding to the screen load; and an overcurrent protection circuit configured to set a set current value at a predetermined ratio with respect to a global current value corresponding to the load value included in the load signal, and to determine whether or not the display device is powered off based on the set current value.

AUTOMATIC PERSPECTIVE CORRECTION FOR IN-FLIGHT ENTERTAINMENT (IFE) MONITORS
20210150740 · 2021-05-20 ·

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.