Pixel driving circuit, driving method thereof and display panel
A pixel driving circuit, driving circuit technology, applied in static indicators, instruments, etc., can solve the problems of flicker, driving transistor threshold voltage compensation, driving transistor threshold voltage offset and other issues
Active Publication Date: 2021-12-28
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0002] When the existing pixel driving circuit works in a low frequency state, the threshold voltage of the driving transistor will be seriously shifted due to the bias stress, which makes it difficult to compensate the threshold voltage of the driving transistor in the future, which will easily lead to a decrease in the display brightness of the entire display panel. Inhomogeneous; at the same time, the threshold voltage of the driving transistor is seriously shifted, which will produce a serious hysteresis effect, which will lead to undesirable appearances such as afterimages and flickering
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[0073] In order for those skilled in the art to better understand the technical solutions of the present invention, a pixel driving circuit, a driving method thereof, and a display panel provided by the present invention will be described in detail below with reference to the accompanying drawings.
[0074] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. And in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. Based on the described embodiments of the present disclosure, all other embodiments obtained by person...
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The invention provides a pixel driving circuit. The pixel driving circuit comprises a driving circuit and an initialization circuit, wherein the driving circuit is connected with a first node, a second node and a third node respectively; and the initialization circuit is connected with the first node, the initialization circuit is further connected with the second node and / or the third node, and the initialization circuit is configured to provide a first initialization voltage for the first node, and provide a first reset voltage for the second node and / or provide a second reset voltage for the third node, so as to control a driving transistor in the driving circuit to be in a conduction state. The invention further provides a driving method of the pixel driving circuit and a display panel.
Description
technical field [0001] The invention relates to the display field, in particular to a pixel driving circuit, a driving method thereof, and a display panel. Background technique [0002] When the existing pixel driving circuit works in a low frequency state, the threshold voltage of the driving transistor will be seriously shifted due to the bias stress, which makes it difficult to compensate the threshold voltage of the driving transistor in the future, which will easily lead to a decrease in the display brightness of the entire display panel. Inhomogeneous; at the same time, the threshold voltage of the driving transistor is seriously shifted, which will produce a serious hysteresis effect, which will lead to afterimages, flickering and other undesirable effects. Contents of the invention [0003] In a first aspect, an embodiment of the present disclosure provides a pixel driving circuit, including: a driving circuit and an initialization circuit; [0004] The driving ci...
Claims
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Login to View More IPC IPC(8): G09G3/3225G09G3/3258G09G3/32
CPCG09G3/3225G09G3/3258G09G3/32G09G3/3233G09G2300/0819G09G2300/0842G09G2320/0247G09G2320/0257
Inventor 曹席磊杨栋芳张振华朱莉李小鑫冯靖伊
Owner BOE TECH GRP CO LTD