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A pixel circuit, a display panel and a driving method for the display panel

A technology of pixel circuit and driving module, applied in static indicators, instruments, etc., can solve the problems of affecting display effect, different driving current, poor uniformity of OLED display panel, etc., and achieve the effect of improving afterimage phenomenon and improving uniformity.

Active Publication Date: 2021-02-02
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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Problems solved by technology

[0002] During the display process of the Organic Light-Emitting Diode (OLED) display panel, due to the different initial gate-source voltages of the driving transistors in the sub-pixels of different colors in the OLED display panel, the driving currents of the sub-pixels of different colors are different. The uniformity of light emission of the OLED display panel is poor, and the graphics of the original image will be left in the process of changing the display image, forming a short-term afterimage phenomenon, which seriously affects the display effect

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  • A pixel circuit, a display panel and a driving method for the display panel
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Embodiment Construction

[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0047]In the prior art, due to the different initial gate-source voltages of the driving transistors in the sub-pixels of different colors in the OLED display panel, the driving currents of the sub-pixels of different colors are different, resulting in poor uniformity of light emission of the OLED display panel. In addition, when the screen of the OLED display panel is switched, the screen before the switch will not disappear immediately, but slowly disappear with the next screen, so that there is a short-term afte...

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Abstract

The invention discloses a pixel circuit, a display panel and a driving method of the display panel. The pixel circuit includes a data voltage writing module, a driving module, a light emitting module, a light emitting control module, a storage module and a sensing module, and the sensing module is electrically connected to the light emitting module. In the light-emitting stage, the sensing module senses the voltage of the light-emitting module and compensates the voltage of the light-emitting module, so that the compensated voltage signals of the light-emitting modules in different pixel circuits are equal, so the light-emitting modules in different pixel circuits have the same luminance. Therefore, the display uniformity of the display panel is improved. Moreover, the sensing module compensates the voltage of the light-emitting module according to the preset voltage during the light-emitting stage, which can avoid the influence of the initial voltage of the driving module on the driving signal, and improve the afterimage phenomenon that occurs when the display panel switches between different frames.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a pixel circuit, a display panel, and a driving method for the display panel. Background technique [0002] During the display process of the Organic Light-Emitting Diode (OLED) display panel, due to the different initial gate-source voltages of the driving transistors in the sub-pixels of different colors in the OLED display panel, the driving currents of the sub-pixels of different colors are different. As a result, the uniformity of light emission of the OLED display panel is poor, and the graphics of the original image will be left in the process of changing the display image, forming a short-term afterimage phenomenon, which seriously affects the display effect. Contents of the invention [0003] The invention provides a pixel circuit, a display panel and a driving method of the display panel to improve the display uniformity of the display pane...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3258
CPCG09G3/3258G09G2320/0257
Inventor 董栓柱刘曼娜朱晖李永岗朱正勇
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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