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Driving circuit, pixel circuit, driving method thereof, and display device

A driving circuit and pixel circuit technology, which is applied in the field of OLED pixel driving, can solve the problem that the 6T1C pixel driving circuit cannot realize OLED current initialization, etc.

Active Publication Date: 2019-12-24
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a driving circuit, a pixel circuit, a driving method thereof, and a display device for the technical problem that the 6T1C pixel driving circuit in the conventional technology cannot realize OLED current initialization.

Method used

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  • Driving circuit, pixel circuit, driving method thereof, and display device
  • Driving circuit, pixel circuit, driving method thereof, and display device
  • Driving circuit, pixel circuit, driving method thereof, and display device

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Embodiment Construction

[0028] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0029] In one embodiment, see figure 1, the present application provides a driving circuit for driving an organic light emitting diode (OLED). The driving circuit includes: a transistor M1, a transistor M2, a transistor M3, a transistor M4, a transistor M5, a transistor M6, and a capacit...

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Abstract

The invention relates to a driving circuit, a pixel circuit, a driving method of the driving circuit and a display device. The driving circuit comprises a transistor M1, a transistor M2, a transistorM2, a transistor M4, a transistor M5, a transistor M6 and a capacitor C1. At the initialization phase of the driving circuit, a data signal flows through the transistor M4, the transistor M6, the transistor M5 and the transistor M3 to an anode of an organic light emitting diode OLED, and thereby the anode voltage of the organic light emitting diode OLED is initialized. The data signal flows through the transistor M4 and the transistor M5 and is applied to a substrate of the capacitor C1, the remaining electrical energy stored in the capacitor C1 in the previous frame of pixel time is discharged, and difference of the final driving currents caused by difference of threshold voltage sampling in the present frame pixel time is avoided.

Description

technical field [0001] The invention relates to the field of driving OLED pixels, in particular to a driving circuit, a pixel circuit, a driving method thereof and a display device. Background technique [0002] An organic light-emitting display is a display that uses an organic light-emitting diode (Organic Light-Emitting Diode, OLED) as a light-emitting device. Compared with a thin film transistor liquid crystal display (Thin Film Transistor-Liquid Crystal Display, TFT-LCD), it has high contrast, Wide viewing angle, low power consumption, thin volume and other advantages. [0003] The brightness of the OLED is determined by the magnitude of the current generated by the driving thin film transistor (Thin Film Transistor, TFT) circuit. [0004] The traditional technology mainly realizes the initialization of OLED and capacitor by introducing new TFT means, such as 7T1C pixel driving circuit or 8T1C pixel driving circuit. However, the 6T1C pixel drive circuit cannot realize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208
Inventor 孙光远朱晖张九占
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD