Scan-type display apparatus, and driving device and driving method thereof
US11348543B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2021 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Mar 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0435
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scan-type display apparatus includes an LED array, a display module, a control module and a driver module. The LED array has a common cathode configuration. The control module generates a synchronization control (SC) signal. Based on the SC signal, the driver module outputs an input voltage to scan lines of the LED array sequentially without overlapping in time so as to drive LEDs of the LED array to emit light in a line scan manner, and generates an image refresh signal that is related to the output of the input voltage to one of the scan lines which corresponds to a last line of the line scan in each line scan cycle and that is further related to refreshing of images on a display constituted by the LED array and the display module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.