Pixel driving circuit, driving method and display device

A technology of a pixel driving circuit and a driving sub-circuit is applied in the field of pixel driving circuits and driving methods, and display devices, which can solve the problems of uneven display of display devices, and achieve the effects of solving uneven display and small IR voltage drop.

Pending Publication Date: 2021-09-03
FUZHOU BOE OPTOELECTRONICS TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a pixel driving circuit, a driving method, and a display dev

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  • Pixel driving circuit, driving method and display device
  • Pixel driving circuit, driving method and display device
  • Pixel driving circuit, driving method and display device

Examples

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Example Embodiment

[0031] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art will belong to the scope of the present invention without all other embodiments obtained without creative labor.

[0032] In the description of the invention, it is to be understood that the terms "center", "upper", "lower", "front", "post", "left", "right", "vertical", "horizontal", The orientation or position of "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is merely described in the present invention and simplified description, not indication or implied The device or element must have a specific orientation, construct...

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Abstract

The embodiment of the invention provides a pixel driving circuit, a driving method and a display device, relates to the technical field of display, and is used for solving the problem of non-uniform display of the display device caused by IR voltage drop on a power line. The pixel driving circuit comprises a driving sub-circuit, a write-in sub-circuit, a light-emitting control sub-circuit and a compensation sub-circuit. The driving sub-circuit is configured to control a driving current flowing through a first end and a second end thereof. The write-in sub-circuit is configured to apply an initialization voltage to the first node and control the voltage of the first end of the drive sub-circuit to be a data voltage. The light emitting control sub-circuit is configured to apply a power supply voltage to the first end of the driving sub-circuit and conduct the first node and the control end of the driving sub-circuit. The compensation sub-circuit is configured to couple the voltage variation of the first end of the driving sub-circuit to the first node, so that the voltage of the first node is changed to the driving voltage.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel driving circuit, a driving method, and a display device. Background technique [0002] In the field of display technology, organic light-emitting diode (OLED) display devices have been increasingly used in high-performance displaying. [0003] The OLED display device may include a plurality of pixels and pixel driving circuits coupled to the plurality of pixels in a one-to-one correspondence. The pixel driving circuit may include a power supply line through which the power supply voltage may be transmitted to multiple pixels in the OLED display device, for example, the power supply line may provide the power supply voltage to each pixel in the same column. [0004] In the case of long power lines (for example, in large-size OLED display devices), a large IR drop (IR drop) will occur on the power line, so that the voltage received by the next pixel is lower than...

Claims

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Application Information

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IPC IPC(8): G09G3/3208G09G3/3258
CPCG09G3/3208G09G3/3258
Inventor 翁祖伟黄宇鹏翁彬刘葆黄巧红
Owner FUZHOU BOE OPTOELECTRONICS TECH CO LTD
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