Electrical level shifting chip and display device

US11205359B2 · kind B2 · utility

Inventors

• Wenfang Li · Longbeilingcun, CN
• Dan Cao · Beijing, CN

Key dates

• Filing date: Nov 22, 2019
• Grant date: Dec 21, 2021
• Expiry date: Jul 30, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G09G2330/12
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An electrical level shifting chip and a display device are provided. The electrical level shifting chip includes an electrical level shifting module, an overcurrent protecting module, and a controlling module. The control module is configured to detect whether the electrical level shifting chip is in an electrostatic discharge test mode and to disable the overcurrent protecting module when the electrical level shifting chip is in the electrostatic discharge test mode. Avoid the overcurrent protecting module from being disturbed and causing malfunction during an electrostatic discharge test.