Display device and driving method thereof
US11127345B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2020 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Oct 1, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a display divided into a plurality of blocks including pixels, a timing controller for calculating a frame load for an image frame of input image data, and for generating image data by scaling grayscale values of the input image data using a scale factor, a data driver for generating a data signal corresponding to the image data, and for supplying the data signal to the pixels, a current sensor for sensing a global current flowing in a first power source line connected to the pixels, and a scale factor provider for correcting a unit target current determined using a reference block among the blocks based on a deviation in light emitting characteristics between the blocks, for calculating a target current using the frame load and a corrected unit target current, and for comparing the target current with the global current to calculate the scale factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.