Pixel circuit driving method and device

A technology of a pixel circuit and a driving method, which is applied in the field of driving methods and devices of a pixel circuit, and can solve problems such as the inability to realize high-contrast display, the upper limit of contrast, and the limitation of the difference between the maximum and minimum voltages at both ends of a light-emitting device, etc.

Active Publication Date: 2020-07-07
BOE TECH GRP CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In some application scenarios such as near-eye display systems, the size and specifications of thin-film transistors in OLED products are subject to certain restrictions. The difference between the maximum value and the minimum value of the voltage is also limited accordingly, which means that there is an upper limit on the contrast that can be achieved, and high contrast display cannot be achieved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pixel circuit driving method and device
  • Pixel circuit driving method and device
  • Pixel circuit driving method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or similar words mean ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The disclosure provides a method and device for driving a pixel circuit, belonging to the field of display. When the current data voltage of the pixel circuit is within the first voltage range, and the target data voltage of the pixel circuit is within the second voltage range, the driving method includes: using a gate signal reference voltage corresponding to the first voltage range, setting Refresh the data voltage stored in the pixel circuit to the boundary value between the first voltage range and the second voltage range; use the gate signal reference voltage corresponding to the second voltage range to refresh the data voltage stored in the pixel circuit to the target data voltage; wherein, The target data voltage and the current data voltage are respectively post-refresh and pre-refresh data voltages in a refresh process, and the first voltage range and the second voltage range respectively use the boundary value as one of the maximum value endpoint and the minimum value endpoint. The disclosure helps to realize high-contrast display of OLED products under low-pressure process.

Description

technical field [0001] The present disclosure relates to the field of display, and in particular to a method and device for driving a pixel circuit. Background technique [0002] Organic Light-Emitting Diode (OLED) display is a display product mainly made of organic light-emitting diodes. With its advantages of high brightness, rich colors, low data voltage, fast response speed and low power consumption, it has been Become one of the current mainstream display products. OLED is an all-solid-state device with good shock resistance and wide operating temperature range, so it is suitable for military and special applications; System volume, especially for near-eye display systems. [0003] In some application scenarios such as near-eye display systems, the size and specifications of thin-film transistors in OLED products are subject to certain restrictions. The difference between the maximum value and the minimum value of the voltage is also limited accordingly, which means ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3233G09G3/3291
CPCG09G3/3233G09G3/3291G09G2300/0861G09G2300/0842G09G2310/0262G09G3/3275G09G2310/08G09G3/2018
Inventor 杨盛际董学陈小川王辉卢鹏程于芳刘伟
Owner BOE TECH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap