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Pixel circuit, pixel driving method and display device

A technology of pixel circuit and driving unit, which is used in static indicators, instruments, etc.

Active Publication Date: 2018-10-19
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a pixel circuit, a pixel driving method and a display device to solve the problem that the existing display device cannot perform automatic short circuit protection when there is a short circuit between the first pole of the light emitting element and the second pole of the light emitting element question

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

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Embodiment Construction

[0036] 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.

[0037] The transistors used in all the embodiments of the present invention can be thin film transistors or field effect transistors or other devices with the same characteristics. In the embodiment of the present invention, in order to distinguish the two poles of the transistor except the gate, one pole is called the first pole, and the other pole is called the second pole. In actual operation, the first electrode may be a drain, and the second electrode may...

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Abstract

The invention provides a pixel circuit, a pixel driving method and a display device. The pixel circuit comprises a light-emitting component and comprises a data writing unit, an energy storage unit, adriving unit, a light-emitting control unit and a shortcircuit protective unit; the light-emitting control unit conducts connection between a light-emitting node and a first electrode of the light-emitting component at the light-emitting stage and under the control of a control line as well as conducts connection between the first electrode of the light-emitting component and the control end of the shortcircuit protective unit; and the shortcircuit protective unit conducts or breaks the connection between a second electrode of the light-emitting component and a second voltage end under the control of the control end. Automatic shortcircuit protection can be conducted when the first electrode of the light-emitting component and the second electrode of the light-emitting component are shortcircuited.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit, a pixel driving method and a display device. Background technique [0002] Micro LED (miniature light-emitting diode) devices have high efficiency and strong resistance to water and oxygen, and are expected to become the mainstream display technology of the next generation. However, in a display device including Micro LED, the substrate on which the Micro LED is grown is not the same substrate as the final display substrate, and transfer printing is involved in the process. After transfer printing, it needs to be electrically connected to the backplane. In the flip-chip device, the electrical connection adopts the cathode and anode silver dispensing process, and the cathode and anode silver glue are prone to disconnection during this process. In the vertical device, after the anode or cathode is electrically connected to the backplane after the transfe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 岳晗玄明花陈小川王灿丛宁张粲杨明
Owner BOE TECH GRP CO LTD