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A pixel driving circuit, its driving method, and a display panel

A technology of a pixel driving circuit and a driving method, applied in the field of display technology and circuit, can solve the problems of long charging time and low applicability of the pixel driving circuit, etc.

Active Publication Date: 2020-12-25
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a pixel driving circuit and its driving method, as well as a display panel, so as to solve the problem that the pixel driving circuit of the existing Micro LED panel is in the process of driving the Micro LED due to the long charging time. Problems leading to low applicability of the pixel driving circuit

Method used

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  • A pixel driving circuit, its driving method, and a display panel
  • A pixel driving circuit, its driving method, and a display panel
  • A pixel driving circuit, its driving method, and a display panel

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Embodiment Construction

[0053] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0054] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0055] figure 1 It is a structural schematic diagram of a pixel driving circuit in an existing display panel. Such as figure 1 As shown, the pixel driving circuit is, for example, a pixel driving circuit in a Micro LED panel. The pixel driving circuit i...

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Abstract

The embodiment of the invention discloses a pixel driving circuit, a driving method thereof, and a display panel. The pixel driving circuit includes: a charging sub-circuit and a voltage stabilizing sub-circuit, the parallel pre-charging signal terminal and the scanning signal terminal are respectively electrically connected to the first input terminal of the charging sub-circuit, and the second input terminal of the charging sub-circuit is electrically connected to the data signal terminal. connected, the output end is electrically connected to the first input end of the voltage stabilizing sub-circuit, the second input end of the voltage stabilizing sub-circuit is electrically connected to the power supply voltage through the pixel transistor, the output end is electrically connected to the common voltage, and the pixel driving circuit passes the input pre- The charging signal turns on the charging sub-circuit, and pre-charges the voltage-stabilizing sub-circuit through the first data signal input from the charging sub-circuit. After pre-charging, the first voltage value of the voltage-stabilizing sub-circuit is less than or equal to the threshold voltage. The embodiment of the present invention solves the problem of low applicability of the pixel driving circuit due to long charging time in the process of driving light-emitting pixels of the existing display panel.

Description

technical field [0001] The present application relates to but not limited to the field of display technology and circuit technology, especially a pixel driving circuit and its driving method, and a display panel. Background technique [0002] With the development and wide application of display technology, display devices can be equipped with different types of light-emitting devices. Based on the higher requirements of users for display effects, display devices are developing towards higher resolution and refresh rate. [0003] Micro (Micro) light emitting diode (Light Emitting Diode, referred to as: LED) (that is, Micro LED) is the miniaturization of the LED array. In a display panel using Micro LED as a light-emitting device (hereinafter referred to as: Micro LED panel), each Micro LED can be regarded as a pixel (Pixel), which can be driven to light up each Micro LED individually. Compared with liquid crystal display devices ( Liquid Crystal Display, referred to as: LCD)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG09G3/32G09G2310/0264
Inventor 陈瑶高超李海燕陈燕武古涛
Owner BOE TECH GRP CO LTD