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Pixel driving circuit, driving method, display panel and display device

A technology of a pixel driving circuit and a driving method is applied in the fields of driving methods, pixel driving circuits, display panels and display devices, and can solve problems such as unstable gate voltage of driving transistors.

Active Publication Date: 2020-07-07
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a pixel driving circuit, a driving method, a display panel and a display device, so as to improve the instability of the gate voltage of the driving transistor caused by capacitance leakage and improve display uniformity

Method used

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  • Pixel driving circuit, driving method, display panel and display device
  • Pixel driving circuit, driving method, display panel and display device
  • Pixel driving circuit, driving method, display panel and display device

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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 view of the problems of the background technology, an embodiment of the present invention provides a pixel driving circuit, which includes: a data writing module, a voltage stabilizing storage module, a driving module and a light emitting element;

[0048] The data writing module is used to transmit the data signal voltage;

[0049] The driving module is used to generate a driving current according to the data signal voltage transmitted by the data writing module;

[0050] The voltage stabilizing storag...

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Abstract

An embodiment of the invention discloses a pixel driving circuit, a driving method, a display panel and a display device. The pixel driving circuit comprises a data write-in module, a voltage stabilization storage module, a driving module and a light emitting element, wherein the data write-in module is used for transmitting a data signal voltage; the driving module is used for generating a driving current according to the data signal voltage transmitted by the data write-in module; the voltage stabilization storage module is used for storing the data signal voltage transmitted to the drivingmodule; the light-emitting element is used for emitting light corresponding to the driving current generated by the driving module; and the voltage stabilization storage module comprises at least twovoltage stabilization storage sub-modules which are connected in parallel, each voltage stabilization storage sub-module comprises a capacitor, at least one voltage stabilization storage sub-module comprises a switch unit, and each switch unit is connected between the corresponding capacitor and the driving module. According to the pixel driving circuit, the driving method, the display panel and the display device provided by the embodiment of the invention, the problem of non-uniform display caused by capacitor electric leakage can be improved, and the display effect is improved.

Description

technical field [0001] The embodiments of the present invention relate to the field of display technology, and in particular, to a pixel driving circuit, a driving method, a display panel, and a display device. Background technique [0002] Currently, organic light-emitting display panels (Organic Light-Emitting Diode, OLED) and liquid crystal display panels (Liquid Crystal Display, LCD) are two mainstream display panels in the display field. Among them, OLED has the advantages of self-luminescence, low driving voltage, and high luminous efficiency, and is widely loved by people. [0003] A pixel driving circuit of an OLED generally includes a driving transistor, a switching transistor and a storage capacitor. Due to the characteristics of the transistor itself, the voltage driving the gate of the transistor can still leak through the transistor when the transistor is turned off, thus causing the gate voltage of the driving transistor to be unstable. Since one plate of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3233G09G3/3291
CPCG09G3/3233G09G3/3291G09G2320/0233G09G2300/0819G09G2300/0852G09G2300/0861G09G2320/045G09G3/32G09G2310/0272G09G2310/0267
Inventor 纪启泰赖青俊李晓
Owner XIAMEN TIANMA MICRO ELECTRONICS
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