G09G2310/065

Display device and method for driving same

There is provided a display device that is capable of suppressing occurrence of brightness drop which is caused by refresh of a display image during pause driving. In a normal driving mode, input image data (SsD0) according to a continuous tone method is supplied to a source driver (310) through a data selector (230) as an image signal (SsD) for driver. On the other hand, in a low-frequency driving mode in which pause driving is performed, the input image data (SsD0) is converted into dithered input image data (SsD1) by a dithering processing circuit (220), and is supplied to the source driver (310) through the data selector (230) as the image signal (SsD) for driver. A gradation of the dithered input image data (SsD1) is represented in a pseudo manner by an area coverage modulation method by using two values of a maximum value and a minimum value that can be taken as the gradation value of the input image data (SsD0).

LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF
20180096662 · 2018-04-05 · ·

A liquid-crystal display device and a driving method thereof are disclosed. The driving method of the liquid-crystal display device comprises: converting data of an input image into a positive gamma reference level voltage and a negative gamma reference voltage to generate a positive data voltage and a negative data voltage; selecting between the positive data voltage and the negative data voltage in response to a polarity control signal and supplying the selected data voltage to data lines; generating a compensated voltage based on the difference between a dummy data voltage and a preset gamma reference level voltage; and increasing the high-potential power supply voltage by an amount equal to the compensated voltage and decreasing the low-potential power-supply voltage by the amount equal to the compensated voltage.

Liquid crystal display and method for driving the same

A liquid crystal display and a method for driving the same. The liquid crystal display includes: gate lines arranged in a row direction; data lines arranged in a column direction; and subpixels arranged in basic units of eight subpixels. Each subpixel is each connected to one of the gate lines and one of the data lines, and the subpixels are continuously arranged along a row and are arranged in a matrix. In the basic units, polarities between adjacent subpixels from a first subpixel to a fourth subpixel along the row are opposite to each other, polarities between adjacent subpixels from a fifth subpixel to an eighth subpixel along the row are opposite to each other, and polarities of the fourth subpixel and the fifth subpixel are the same.

LIQUID CRYSTAL DRIVE DEVICE AND LIQUID CRYSTAL DRIVE METHOD
20180082655 · 2018-03-22 ·

A liquid crystal drive device includes a common driver configured to sequentially output a scanning signal having a plurality of voltage levels to a plurality of common wirings in a time division manner, a segment driver configured to output a display signal having a plurality of voltage levels to a plurality of segment wirings, and a contrast adjustment unit configured to generate contrast adjustment periods that are inserted into all duty periods, and output, to the common driver and the segment driver, a contrast control signal to control the timing of when the contrast adjustment periods are inserted into the duty periods in synchronization with the timing of the scanning signal and the display signal. The scanning signal and the display signal are output at an identical potential when a contrast adjustment period is indicated by the output of the contrast control signal.

DISPLAY DRIVING APPARATUS AND DISPLAY DRIVING METHOD THEREOF

A display driving apparatus including a receiver circuit, a detection circuit and a driving circuit is provided. The receiver circuit receives the video image data at a first rate. The detection circuit is coupled to the receiver circuit. The detection circuit detects whether the video image data is a static image, and determines whether the display driving apparatus enters a power saving mode based on a detecting result. The driving circuit is coupled to the receiver circuit. The driving circuit drives the display panel. In the power saving mode, the receiver circuit continuously receives the video image data at the first rate, and periodically masks a part of the video image data according to the detecting result and outputs an unmasked part of the video image data to the driving circuit. Furthermore, a display driving method adapted for the foregoing display driving apparatus is also provided.

LIGHT EMITTING DIODE DISPLAY DEVICE AND METHOD OF OPERATING THE SAME

A method of operating a light emitting diode (LED) display device is provided. The method includes determining idle time periods respectively corresponding to LED driving clock signals, based on a number of LED driving clock signals corresponding to one frame, controlling generation of the LED driving clock signals, based on the determined idle time periods, and driving an LED module in a unit of an LED line, based on the generated LED driving clock signals. As the LED display device automatically adjusts idle time periods of the LED driving clock signals, the occurrence of flicker in the LED display device may be reduced.

Gate driving circuit providing a matched gate driving signal, corresponding driving method, display circuit and display apparatus
09892676 · 2018-02-13 · ·

A gate driving circuit (12, 13), a display circuit, a driving method thereof and a display apparatus are provided. The gate driving circuit (12, 13) comprises at least three GOA units, each of which comprises a signal input terminal (INPUT), an output terminal (OUT), a reset terminal (RESET) and an idle output terminal (COUNT). The gate driving circuit, the display circuit and the driving method and the display apparatus are capable of providing a matched gate driving signal in the process of threshold compensation outside pixels and applicable to manufacture a displayer.

Display driving apparatus and display driving method thereof

A display driving apparatus including a signal transmission interface, a timing control circuit and an image detection circuit is provided. The signal transmission interface is configured to receive video image data and output the video image data. The timing control circuit is configured to receive the video image data and drive a display panel based on the video image data. The image detection circuit determines whether the video image data is a static image and determines whether the display driving apparatus operates in a power-saving mode based on the determination result. Under the power-saving mode, the signal transmission interface masks a part of the video image data, so as not to output the masked video image data to the timing control circuit. Furthermore, a display driving method adapted for the foregoing display driving apparatus is also provided.

DISPLAY DEVICE AND METHOD FOR DRIVING SAME

In a current measurement period set in a pause period, a display device of the present invention applies measurement voltages to data lines (S1 to Sm) and measures currents outputted to monitoring lines (M1 to Mm) from m pixel circuits (18), and then applies data voltages generated corresponding to video signals to the data lines (S1 to Sm).

Gate driving circuit and a driving method thereof, as well as a display device

The present disclosure provides a gate driving circuit and a driving method thereof, a display device, which relates to the field of display technology. The gate driving circuit may comprise a plurality of mutually cascaded shift register units and a pre-charging unit, the gate row drive scanning and touch control scanning of the plurality of mutually cascaded shift register units are performed alternately. By additionally arranging a pre-charging unit connected with the corresponding first stage of shift register unit when the gate row drive scanning is performed again after the touch control scanning is accomplished, the first stage of shift register unit can be pre-charged during the touch control scanning.