LED electronic bulletin board enabling high-speed image calibration
US10699630B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2018 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Jun 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an an LED electronic bulletin board enabling high-speed image calibration, which is configured to apply brightness calibration data in consideration of brightness characteristics according to a brightness value through determination of whether or not there is a difference in a brightness value of a pixel or a part of an expression portion of the LED electronic bulletin board, which is to be expressed, with respect to image information inputted through a pixel capacitor controller installed between an image input device and a main controller unit (MCU), and then calibrate the image data inputted in real-time to express brightness-calibrated image data on the LED electronic bulletin board so that the image brightness of the electronic bulletin board can be calibrated irrespective of a configuration of an electronic bulletin board expression driving circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.