Pixel driving circuit and display device
A technology of pixel driving circuit and driving current, applied in static indicators, instruments, etc., can solve problems such as affecting the display effect of display devices, gate leakage of driving transistors, etc.
Active Publication Date: 2019-10-11
HEFEI VISIONOX TECH CO LTD
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Problems solved by technology
At present, during the working process of the pixel driving circuit, the gate of the driving transistor has a leakage problem, which affects the display effect of the display device.
Method used
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[0041] 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. Throughout this specification, the same or similar reference numerals represent the same or similar structures, elements or processes. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0042] An embodiment of the present invention provides a pixel driving circuit, including a driving module, a data writing module, a storage module, and a first initialization module. The driving module is used to provi...
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The invention discloses a pixel driving circuit and a display device. The pixel driving circuit comprises a driving module, a data writing module, a storage module and a first initialization module, the driving module is used for providing driving current for the organic light-emitting structure; the organic light-emitting structure responds to the driving current to emit light; the data writing module is used for writing a data signal into the control end of the driving module in a data writing stage; the storage module is used for maintaining the potential of the control end of the driving module in the light-emitting stage; the first initialization module is used for initializing the potential of the control end of the driving module in the initialization stage, the thin film transistors forming the first initialization module are oxide thin film transistors, and at least one oxide transistor is a thin film transistor of a multi-gate structure. By means of the technical scheme, thestability of the voltage of the control end of the driving module is improved while the normal driving function of the pixel driving circuit is achieved, and then the display effect of the display device is optimized.
Description
technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a pixel driving circuit and a display device. Background technique [0002] An organic light-emitting display device generally includes several pixels, each pixel includes a pixel driving circuit and an organic light-emitting structure, the pixel driving circuit provides a driving current to the organic light-emitting structure, and the organic light-emitting structure emits light in response to the driving current provided by the pixel driving circuit, and the organic light-emitting display The device implements the display. [0003] The pixel driving circuit includes a driving transistor, which generates a driving current for driving the organic light emitting structure to emit light. At present, when the pixel driving circuit is working, the gate of the driving transistor has a leakage problem, which affects the display effect of the display device...
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Login to View More IPC IPC(8): G09G3/3258
CPCG09G3/3258
Inventor 段培范龙飞
Owner HEFEI VISIONOX TECH CO LTD