Pixel circuit, drive method thereof, array substrate and display panel

A pixel circuit and power supply technology, which is applied to static indicators, instruments, etc., can solve problems such as unstable data signals and unstable currents of organic light-emitting diodes, achieve stable currents, and improve display effects

Active Publication Date: 2015-01-21
XIAMEN TIANMA MICRO ELECTRONICS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the embodiment of the present invention provides a pixel circuit and its driving method, an array substrate and a display panel, so as to solve

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  • Pixel circuit, drive method thereof, array substrate and display panel
  • Pixel circuit, drive method thereof, array substrate and display panel
  • Pixel circuit, drive method thereof, array substrate and display panel

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[0029] The present invention will be further described in detail below with reference to the drawings and embodiments. It can 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 ease of description, the drawings only show a part but not all of the content related to the present invention.

[0030] The embodiment of the present invention provides a pixel circuit. figure 2 It is a schematic structural diagram of a pixel circuit provided by an embodiment of the present invention. Such as figure 2 As shown, the pixel circuit includes: a first transistor M1, a second transistor M2, an organic light emitting diode D1, and a voltage stabilizing unit 10; the gate of the first transistor M1 is electrically connected to the first signal input terminal S1 of the pixel circuit , The first pole M11 is electrically connected to the second signal input term...

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Abstract

The invention discloses a pixel circuit, a drive method of the pixel circuit, an array substrate and a display panel. The pixel circuit comprises a first transistor, a second transistor, an organic light-emitting diode and a voltage stabilization unit. According to the pixel circuit, because the voltage stabilization unit is arranged between the second electrode of the first transistor and the grid electrode of the second transistor serving as a driving tube, even through second signals received by a second signal input end are unsteady because of capacitive coupling and electric leakage on the periphery of the pixel circuit or attenuation in one frame of display, steady voltage signals can be obtained after the signals pass through the voltage stabilization unit, the voltage signals are applied to the grid electrode of the second transistor, the second transistor can be stably controlled, and therefore the open second transistor can obtain steady drain electrode current, the current flowing through the organic light-emitting diode can be more stable, and the display effect of the display panel can be improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit and a driving method thereof, an array substrate and a display panel. Background technique [0002] In the pixel circuit of the display panel, the active matrix organic light emitting diode (Active Matrix Organic Light Emitting Diode, referred to as AMOLED) can emit light, which is driven by the thin film transistor (Thin Film Transistor, referred to as TFT) as a driving tube in a saturated state. Driven by current, therefore, the control of the drive tube will affect the display effect of the organic light emitting diode. [0003] 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. By applying a voltage signal with only two voltage states of high level and low level to th...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/3233
Inventor 李元钱栋吴桐
Owner XIAMEN TIANMA MICRO ELECTRONICS
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