Pixel driving circuit, display device and driving method
A technology of pixel driving circuit and driving transistor, which is applied in static indicators, instruments, etc., can solve the problems of weakening the compensation effect of pixel circuit and so on.
Active Publication Date: 2019-03-22
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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Problems solved by technology
[0003] In view of this, the present invention provides a pixel driving circuit, a display device and a driving method, which solve the problem that the compensation effect of the pixel circuit is weakened
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0019] figure 1 Shown is a circuit diagram of a pixel driving circuit provided by an embodiment of the present invention.
[0020] Such as figure 1 As shown, a pixel driving circuit includes a data storage module, a data storage control module and an initialization module. The data storage module is configured to store the data signal voltage. The data storage control module is configured to control the data storage module to store the data signal ...
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The invention provides a pixel driving circuit, a display device and a driving method. The problem that the compensation effect of pixel circuits is weakened is solved. The pixel driving circuit comprises a data storage module and an initialization module; the data storage module comprises a first switching transistor and a first transistor, and a second scanning signal transmitted by a second scanning signal terminal controls the first switching transistor to be turned on or turned off; the initialization module comprises a second transistor and a third transistor, and a first scanning signaltransmitted by a first scanning signal terminal controls the second transistor and the third transistor to be turned on or turned off. In a pixel circuit data writing stage, the discharge starting point of the data storage module is increased through the first transistor and the second transistor, the discharging time is shortened, correspondingly the data signal writing time is shortened, the data signal writing speed is increased, the attenuation and the error voltage when data signals are written in are reduced, and therefore the differences of driving current and the probability of inconsistent pixel brightness are reduced.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a pixel driving circuit, a display device and a driving method. Background technique [0002] In the actual working process of the pixel driving circuit in the prior art, because the threshold voltage (Vth) of each driving transistor is related to the manufacturing process conditions, and there are millions of driving TFTs on the display screen, each pixel circuit in the pixel circuit It is impossible for the driving transistors to be exactly the same, so it is easy to cause differences in the Vth of different pixels. When there is a difference in Vth, there is a significant difference in the driving TFT current, and finally the brightness of the pixel is inconsistent, resulting in a problem of poor uniformity. In order to reduce the current difference between driving circuits, it is generally necessary to use a driving circuit with Vth compensation to realize offset co...
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Login to View More IPC IPC(8): G09G3/3291G09G3/3266
CPCG09G3/3266G09G3/3291G09G2320/0233
Inventor 周茂清杜永强
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD