Pixel driving circuit and display device
A pixel drive circuit and drive current technology, which is applied to static indicators, instruments, etc., can solve the problems of unstable potential of the drive transistor and affecting the display effect of the display device, etc.
Inactive Publication Date: 2019-12-20
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 potential of the gate of the driving transistor is unstable, which affects the display effect of the display device.
Method used
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[0030] 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.
[0031] An embodiment of the present invention provides a pixel driving circuit, including a driving module, a threshold compensation module, a data writing module, and a storage module. The driving module is used to pro...
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The invention discloses a pixel driving circuit and a display device. The pixel driving circuit comprises a driving module, a threshold compensation module, a data writing module and a storage module,the driving module provides driving current for the organic light-emitting structure, the organic light-emitting structure responds to the driving current to emit light, and the driving module comprises a driving transistor; the threshold compensation module grabs the threshold voltage of the driving transistor to the control end of the driving module in the threshold grabbing stage; wherein thethin film transistor forming the threshold compensation module is an oxide thin film transistor with a multi-gate structure; the data writing module writes a data signal into the first end of the storage module in the threshold grabbing stage, and the storage module maintains the potential of the control end of the driving module in the light emitting stage and couples the data signal of the firstend to the control end of the driving module in the data writing stage. According to the technical scheme, the normal driving function of the pixel driving circuit is achieved, and meanwhile the problem that the potential of the control end of the driving module is unstable is solved.
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 potential of the gate of the driving transistor is not stable, which affects the display effect of the displ...
Claims
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Login to View More IPC IPC(8): G09G3/3258
CPCG09G3/3258
Inventor 范龙飞王龙彦
Owner HEFEI VISIONOX TECH CO LTD