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Pixel driving circuit, driving method thereof and array substrate

A technology of pixel drive circuit and power supply, applied in the direction of instruments, static indicators, etc., can solve problems such as poor display effect, and achieve the effect of improving display effect

Inactive Publication Date: 2016-04-20
SHANGHAI TIANMA AM OLED +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a pixel driving circuit and its driving method, and an array substrate, which can solve the problem of poor display effect in the prior art

Method used

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  • Pixel driving circuit, driving method thereof and array substrate
  • Pixel driving circuit, driving method thereof and array substrate
  • Pixel driving circuit, driving method thereof and array substrate

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Embodiment Construction

[0028] 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 parts related to the present invention are shown in the drawings but not all content.

[0029] figure 2 It is a structural schematic diagram of an implementation manner of the pixel driving circuit provided by the embodiment of the present invention. Such as figure 2 As shown, the pixel driving circuit includes: an organic light emitting diode D1, a first transistor T11, a second transistor T12, a third transistor T13, a fourth transistor T14 and a capacitor C1.

[0030] The first transistor T11 is connected between the data line (not shown in the figure) and the first node N1, and the signal input by the dat...

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Abstract

The embodiment of the invention discloses a pixel driving circuit, a driving method thereof and an array substrate. The pixel driving circuit comprises an organic light emitting diode, a first transistor, a second transistor, a third transistor, a fourth transistor and a capacitor, wherein the first transistor is connected between a data line and a first node, and the grid electrode of the first transistor is electrically connected with a first scanning line; the second transistor is connected between a second node and a first power supply, and the grid electrode of the second transistor is electrically connected with the first node; the third transistor is connected between the first node and the second node, and the grid electrode of the third transistor is electrically connected with a second scanning line; the fourth transistor is connected between the second node and the positive pole of the organic light emitting diode, and the grid electrode of the fourth transistor is electrically connected with a light emission control line; the capacitor is connected between the first node and the first power supply, and the negative pole of the organic light emitting diode is electrically connected with a second power supply. By the adoption of the embodiment, the display effect can be improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel driving circuit, a driving method thereof, and an array substrate. Background technique [0002] In the pixel circuit of the display panel, the active matrix organic light emitting diode (ActiveMatrixOrganicLightEmittingDiode, referred to as AMOLED) can emit light and is driven by the driving current generated by the transistor as the driving tube in a saturated state. Therefore, the control of the driving tube will affect The display effect of organic light-emitting diodes. The driving method of the driving tube can be divided into analog driving and digital driving, in which the analog driving can be realized through the current signal, while the digital driving can be realized through the voltage signal. [0003] figure 1 It is a structural schematic diagram of a pixel driving circuit in the prior art. in, figure 1 The driving method of the illustrated pix...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225G09G3/3266
CPCG09G3/3258
Inventor 李玥钱栋
Owner SHANGHAI TIANMA AM OLED
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