Display device with overcurrent protection function
US12039930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2023 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Feb 1, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device including: a display panel; a current compensation circuit executing a current compensation operation in which a load is calculated based on input image data, and output compensation image data is generated by compensating for the input image data based on the load; a data driver converting the compensation image data into a data voltage based on a gamma reference voltage and a data driving voltage, and outputting the data voltage; a current sensing circuit sensing a driving current of the display panel and comparing the driving current with a preset reference current to output a protection signal; a voltage generator generating a driving voltage, the gamma reference voltage, and the data driving voltage; and a voltage control circuit generating a first voltage control signal to control a first target compensation value of the gamma reference voltage or the data driving voltage in response to the protection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.