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Pixel driving circuit and its control method, display panel and electronic equipment

A pixel driving circuit and control method technology, applied in static indicators, instruments, etc., can solve the problems affecting OLED brightness and lifespan, and achieve the effects of improving luminous effect, long lifespan, and good display effect

Active Publication Date: 2020-12-22
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This problem will directly affect the brightness and life of OLED

Method used

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  • Pixel driving circuit and its control method, display panel and electronic equipment
  • Pixel driving circuit and its control method, display panel and electronic equipment
  • Pixel driving circuit and its control method, display panel and electronic equipment

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] A pixel driving circuit and a control method thereof, a display panel and an electronic device according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0032] The pixel driving circuit in the embodiment of the present invention can be used to drive a light emitting device to emit light, wherein the light emitting device can be an OLED or a QLED (Quantum Dot Light Emitting Diodes, Quantum Dot Light Emitting Diodes, quantum dot light emitting diode) pixel, etc., ...

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Abstract

The invention discloses a pixel driving circuit and its control method, a display panel and electronic equipment. The pixel driving circuit comprises: a driving unit connected to a light-emitting device and a first voltage terminal; a storage unit connected to the driving unit; The control unit is connected to the storage unit, the first voltage terminal and the drive unit, and is used to control the voltage value at both ends of the storage unit, and to control the drive unit to discharge to the first voltage terminal; the storage control unit is connected to the drive unit and the storage unit The connection is used to control the storage unit to store the voltage after the drive unit is discharged; the data writing unit is connected to the storage unit, the data signal input terminal, the first control signal terminal and the discharge control unit, and is used to input the first control signal terminal Under the control of the first control signal, the data voltage is written into the storage unit, and the driving unit is controlled to be turned on, so as to drive the light emitting device to emit light. The circuit of the invention can improve the light-emitting effect of the light-emitting device and increase the service life of the light-emitting device.

Description

technical field [0001] The present invention relates to the technical field of display control, in particular to a pixel driving circuit, a display panel, an electronic device and a control method of the pixel driving circuit. Background technique [0002] In an OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display, since a current drives the OLED to emit light, the current stability of the OLED is very important and directly affects the brightness of the OLED. The OLED current is generally related to the voltage driving the TFT (Thin Film Transistor, thin film transistor), and the TFT of the a-Si (Amorphous Silicon, amorphous silicon) process has the problem of threshold voltage drift, that is, when the voltage is applied to the gate source, The current of the TFT will gradually decay and the threshold voltage will increase. This problem will directly affect the brightness and lifetime of OLED. Contents of the invention [0003] The present invention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3233G09G2300/0819G09G2300/0842G09G2300/0866G09G3/3266G09G3/3291
Inventor 王峥
Owner BOE TECH GRP CO LTD