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A pixel circuit, driving method and display device

A technology of a pixel circuit and a driving method, which is applied in the field of organic light-emitting display, can solve problems such as uneven light emission, and achieve the effects of eliminating the influence of bad factors, improving uneven light emission, and improving light emission uniformity and display effect

Active Publication Date: 2018-03-02
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual use, it is found that organic light-emitting diode display devices have uneven light emission

Method used

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  • A pixel circuit, driving method and display device
  • A pixel circuit, driving method and display device
  • A pixel circuit, driving method and display device

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Embodiment Construction

[0026] 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, not all, embodiments of the present invention. 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.

[0027] As mentioned in the background art, in actual use, it is found that organic light-emitting diode display devices have non-uniform light emission.

[0028] Based on this, the embodiments of the present application provide a pixel circuit, a driving method and a display device. By compensating the threshold voltage of a driving transistor driving a light-emitting element, the influence of the threshold voltage is eliminated, thereby eliminating the phenome...

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Abstract

The invention discloses a pixel circuit, a driving method and a display device. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a driving transistor and a capacitor; through cooperation and driving among all the transistors and the capacitor, a driving current is finally made to be irrelevant to the threshold voltage of the driving transistor, influence of bad factors is eliminated, the problem that the display device does not emit light uniformly is further effectively improved, and light-emitting uniformity and the display effect of the display device are improved.

Description

technical field [0001] The present invention relates to the technical field of organic light-emitting display, and more specifically, relates to a pixel circuit, a driving method and a display device. Background technique [0002] With the continuous development of multimedia, Organic Light Emitting Diode (OLED) display devices have attracted attention in the display market due to their simple structure and excellent operating temperature, contrast, viewing angle and other advantages. Organic light emitting diode displays include passive matrix OLED display devices and active matrix OLED display devices, and active matrix OLED display devices are widely used due to low power consumption. In actual use, it is found that the organic light emitting diode display device has a phenomenon of uneven light emission. Contents of the invention [0003] In view of this, the present invention provides a pixel circuit, a driving method and a display device. By compensating the thresho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225
Inventor 翟应腾
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD