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Pixel driving circuit and control method of pixel driving circuit

A technology of pixel driving circuit and voltage, applied in static indicators, instruments, etc., can solve problems such as uneven display brightness

Inactive Publication Date: 2020-01-10
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The present invention provides a pixel driving circuit, a control method of the pixel driving circuit, a display panel and a display device, so as to solve the problem of uneven display brightness in traditional display devices

Method used

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  • Pixel driving circuit and control method of pixel driving circuit
  • Pixel driving circuit and control method of pixel driving circuit
  • Pixel driving circuit and control method of pixel driving circuit

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Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] In a traditional display device, the driving current of the driving transistor drives the OLED to emit light, and the driving current is from the positive voltage of the power supply V VDD Flow to the negative voltage of the power supply V VSS . As the screen body of the display device becomes larger and larger, due to the transmission power supply positive voltage V VDD There ...

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Abstract

The invention provides a pixel driving circuit and a control method of the pixel driving circuit. In the present invention, in response to a light-emitting signal, by using a reference voltage provided by a first node, a series structure of a first capacitor and a second capacitor and a bootstrap effect of the second capacitor, transmission of the reference voltage and a data signal voltage is realized, so that the driving current is irrelevant to the threshold voltage of the first transistor and the positive voltage of the power supply; the problem of non-uniform display brightness in a traditional display device is solved, and the visual display quality of the display device is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel driving circuit and a control method for the pixel driving circuit. Background technique [0002] Among active-matrix organic light-emitting diode (AMOLED) panels, organic light-emitting diodes (OLEDs) have been widely used due to their light weight, small size, and low energy consumption. various display devices. [0003] However, the conventional display device has the problem of uneven brightness, which makes the visual effect of the display device poor and seriously affects the user's visual experience. Contents of the invention [0004] The invention provides a pixel driving circuit, a control method of the pixel driving circuit, a display panel and a display device, so as to solve the problem of uneven display brightness in the traditional display device. [0005] In a first aspect, the present invention provides a pixel driving circuit, comprising: [0006] a...

Claims

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Application Information

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IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0233
Inventor 侯亚辉韩珍珍胡思明吴剑龙
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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