Abstract: A pixel compensation method includes determining an actual driving digital voltage of each organic light-emitting sub-pixel in a detection row; performing mean value calculation based on the actual driving digital voltage of each organic light-emitting sub-pixel in the detection row to determine an average driving digital voltage corresponding to the detection row; calculating a voltage difference between the actual driving digital voltage of the organic light-emitting sub-pixel in the detection row and the average driving digital voltage, and counting the voltage differences to form a voltage difference set; and outputting a corresponding data compensation analog voltage to the organic light-emitting sub-pixel in the detection row when an absolute value of a maximum voltage difference in the voltage difference set is greater than or equal to a target threshold. The pixel compensation method of this disclosure can improve the uneven display and improve the display effect.

Abstract: An OLED drive circuit and an OLED display device. The OLED drive circuit includes a sub-drive circuit, a sub-switch circuit, a sub-detection circuit and a sub-compensation circuit; the sub-drive circuit is configured to output a driving voltage to an OLED; the sub-detection circuit is configured to detect the driving voltage of the sub-drive circuit when a circuit path between the sub-drive circuit and the OLED is disconnected; and the sub-compensation circuit is configured to output a data voltage output by the data line according to the driving voltage detected by the sub-detection circuit. According to the OLED drive circuit, a change of the driving current flowing into the OLED can be reduced, and an image quality of the OLED display device can be improved accordingly.

Abstract: A pixel compensation method includes determining an actual driving digital voltage of each organic light-emitting sub-pixel in a detection row; performing mean value calculation based on the actual driving digital voltage of each organic light-emitting sub-pixel in the detection row to determine an average driving digital voltage corresponding to the detection row; calculating a voltage difference between the actual driving digital voltage of the organic light-emitting sub-pixel in the detection row and the average driving digital voltage, and counting the voltage differences to form a voltage difference set; and outputting a corresponding data compensation analog voltage to the organic light-emitting sub-pixel in the detection row when an absolute value of a maximum voltage difference in the voltage difference set is greater than or equal to a target threshold. The pixel compensation method of this disclosure can improve the uneven display and improve the display effect.

Abstract: A gate drive circuit includes a charging circuit, a first shutdown circuit and a second shutdown circuit, and a first startup circuit and a second startup circuit. The charging circuit includes an energy storage element, a first switch unit and a second switch unit. The energy storage element switches between charging and discharging states based on control signals responded by control terminals of the first switch unit and the second switch unit. Control terminals of the first shutdown/startup circuit and second shutdown/startup circuit respond to the shutdown/startup control signal when the energy storage element is in the discharging state so that output terminals of the first shutdown/startup circuit and the second shutdown/startup circuit output two shutdown/startup signals to the sub-pixel.

Abstract: A drive circuit, a display device, and a debugging method. The drive circuit is coupled to a display panel, the display panel includes a plurality of display regions, and the drive circuit includes a plurality of compensation sub-circuits. The plurality of compensation sub-circuits are coupled to the plurality of display regions in a one-to-one corresponding manner through traces, and each of the compensation sub-circuits is configured to output a voltage determined based on a wire resistance of the trace to the corresponding display region through the traces. The display panel is configured as a plurality of display regions, and each display region is coupled to one drive circuit through one single trace, such that the compensation sub-circuits can apply different voltages to the display regions, and the voltages are determined based on wire resistances of the traces.

Abstract: An OLED drive circuit and an OLED display device. The OLED drive circuit includes a sub-drive circuit, a sub-switch circuit, a sub-detection circuit and a sub-compensation circuit; the sub-drive circuit is configured to output a driving voltage to an OLED; the sub-detection circuit is configured to detect the driving voltage of the sub-drive circuit when a circuit path between the sub-drive circuit and the OLED is disconnected; and the sub-compensation circuit is configured to output a data voltage output by the data line according to the driving voltage detected by the sub-detection circuit. According to the OLED drive circuit, a change of the driving current flowing into the OLED can be reduced, and an image quality of the OLED display device can be improved accordingly.

Abstract: A normally white type liquid crystal display device comprises a liquid crystal display, a backlight source and a dimmer film. The dimmer film is located on one surface, far away from the backlight, of the liquid crystal display, or in the liquid crystal display, or between the liquid crystal display and the backlight source, or in the backlight source. Under the circumstances that a voltage is not applied between an upper polarizer and a lower polarizer of the normally white type liquid crystal display device and a voltage is not applied to the backlight source, the transmittance of incident light and reflected light is reduced due to the existence of the dimmer film.