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Pixel circuit, display panel and driving method of 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: 2019-07-23
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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  • Pixel circuit, display panel and driving method of 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 comprises a data voltage write-in module, a driving module, a light-emitting module, a light-emitting control module, a storage module and an induction module, and the induction module is electrically connected with the light-emitting module. In the light-emitting stage, the induction module senses the voltage of the light-emitting module and compensates the voltage of the light-emitting module, so that voltage signals compensated by the light-emitting modules in different pixel circuits are equal, the light-emitting brightness of the light-emitting modules in the different pixel circuits is the same, and the display uniformity of the display panel is improved. Moreover, the voltage of the light-emitting module is compensated by the sensing module according to the preset voltage in the light-emitting stage, so that the influence of the initial voltage of the driving module on the driving signal can be avoided, and the ghost phenomenon of the display panel during the switching of different frames is improved.

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 Applications(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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