Everdisplay Optronics (shanghai) Co., Ltd.

JehYen Kang

Keitaro Yamashita

Xiangshu Li

Fei Shen

Zhouhui Xia

Xiangyu Jiang

Shaodong Ma

The present disclosure relates to the field of display technology, and provides a display device and a driving method therefor. The driving method includes: providing a display device including a plurality of sub-pixels, each sub-pixel including an OLED light-emitting element, a light-emitting control transistor configured to transmit a driving current to the OLED light-emitting element, and a reset transistor coupled to an anode of the OLED light-emitting element; inputting a periodic cut-off signal to the light-emitting control transistor; determining the effective light-emitting phase of each frame period for the sub-pixel; and during the effective light-emitting phase of each frame period for the sub-pixel, inputting a reset signal to the reset transistor corresponding to one or more cut-off signal.

Display device and driving method therefor

A driving method includes: generating and outputting a frame image signal to an organic light emitting device, wherein the frame image signal includes an active data region and a blank region based on a time sequence; in the active data region of the frame image signal, using a timing controller to write a data voltage into the gate of the thin film transistor, store it in a storage capacitor, and apply it to the organic light emitting device through the thin film transistor; and in response to reaching the blank region of the frame image signal as determined by the timing controller, changing the first voltage at the cathode of the organic light emitting device to compensate the operating current of the organic light emitting device.

Driving method of display device and display device

The present disclosure relates to the technical field of display panels, in particular to a driving method and driving apparatus of a display panel. The driving method may include in response to detecting that the display panel is switched from a dynamic picture to a static picture, generating a refresh rate adjustment instruction; according to the refresh rate adjustment instruction, switching the picture refresh rate of the display panel from a first picture refresh rate to a second picture refresh rate and generating a voltage adjustment instruction; obtaining a target cathode power supply voltage matching the second picture refresh rate; and based on the voltage adjustment instruction and the target cathode power supply voltage, adjusting the display panel to change a working current of each pixel in the display panel.

Driving method and apparatus of a display panel

The present disclosure relates to the field of display technology, and provides driving methods of a display panel and a display device.

Driving method of display panel and display device

The present disclosure provides a method and device for driving a display panel. The method includes steps of: presetting a mapping database of correspondence between each of first voltages and a respective one of image refresh rates; sending a refresh rate adjustment instruction to a timing controller; switching the image refresh rate from the first image refresh rate to the second image refresh rate according to the refresh rate adjustment instruction, and sending a voltage adjustment instruction to a power driving chip; obtaining the first voltage according to the voltage adjustment instruction and the mapping database; obtaining the pixel driving voltage according to the preset correspondence between the first voltage and the pixel driving voltage; and adjusting the display panel according to the pixel driving voltage to change the operating current of each pixel.

Growing community of inventors

Shanghai, China

JehYen Kang