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

A technology of a pixel driving circuit and a driving module, which is applied in the field of pixel driving circuits, display panels and display devices, and driving methods, and can solve problems such as unstable gate voltages of driving transistors, so as to improve display effects, improve display unevenness, and control The effect of reducing the amount of terminal voltage variation

Active Publication Date: 2022-04-19
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • 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

The embodiment of the invention discloses a pixel driving circuit, a driving method, a display panel and a display device. The pixel driving circuit includes: a data writing module, a voltage stabilizing storage module, a driving module and a light-emitting element; the data writing module is used to transmit the data signal voltage; the driving module is used to generate the driving voltage according to the data signal voltage transmitted by the data writing module current; the voltage stabilizing memory module is used to store the data signal voltage transmitted to the driving module; the light-emitting element is used to emit light corresponding to the driving current generated by the driving module; wherein the voltage stabilizing memory module includes at least two parallel voltage stabilizing memory modules modules, each voltage-stabilizing storage sub-module includes a capacitor, at least one voltage-stabilizing storage sub-module includes a switch unit, and the switch unit is connected between the capacitor and the drive module. The technical solutions provided by the embodiments of the present invention can improve the display unevenness problem caused by capacitor leakage and improve the display effect.

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 Patents(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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