Organic light-emitting display panel and display device
A light-emitting display and panel technology, applied to static indicators, instruments, etc., can solve problems such as poor display and easy offset of the gate node voltage of the driving transistor, so as to improve poor display, improve node voltage offset, reduce The effect of leakage current
Active Publication Date: 2022-07-22
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Problems solved by technology
However, in the current pixel driving circuit, the node voltage of the gate of the driving transistor is prone to shift, resulting in poor display
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[0039] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application.
[0040] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the embodiments of this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.
[0041] In order to illustrate the technical effects of the embodiments of the present application more clearly, before introducing the embodiments of the present application, the technical problems of the prior art are firstly introduced, such as figure ...
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Embodiments of the present application provide an organic light emitting display panel and a display device, which relate to the field of display technology, and can improve the offset of the node voltage of the gate of the driving transistor caused by the leakage current, thereby improving the display failure caused thereby. An organic light-emitting display panel, comprising: a pixel drive circuit, a control end of a drive transistor is electrically connected to a first node; a first transistor; a second transistor; a third transistor; a first capacitor, one end of the first capacitor is electrically connected to a first node Four nodes, the other end of the first capacitor is electrically connected to the fifth node; the pixel driving circuit works in a periodic multi-frame period, and the fifth node is used to provide the node control signal, the starting position of the high-level pulse in the node control signal Before the start position of the active level pulse in the first scan signal, the end position of the high level pulse in the node control signal is located after the end position of the active level pulse in the first scan signal.
Description
technical field [0001] The present application relates to the field of display technology, and in particular, to an organic light-emitting display panel and a display device. Background technique [0002] The organic light-emitting display panel includes a pixel driving circuit corresponding to each light-emitting device, and the pixel driving circuit charges the node of the gate of the driving transistor periodically in a frame to drive the light-emitting device to display corresponding brightness. In each frame, the pixel The driving circuit works in the charging period and the light-emitting period in sequence. During the charging period, the data voltage is charged into the node of the gate of the driving transistor. The voltage charged in the charging period in advance generates a corresponding current to drive the light-emitting device to emit light. However, in the current pixel driving circuit, the node voltage of the gate of the driving transistor is prone to shift...
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IPC IPC(8): G09G3/3233
CPCG09G3/3233
Inventor 孟洋洋
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD