Method and apparatus for compensating image data for LED display
US11263956B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Feb 14, 2020 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Jun 21, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An LED display system has and LED display panel coupled to a driver circuitry. The driver circuitry includes a scrambled PWM generator, a register, and a memory. The scrambled PWM generator receives an image data from an external source and, after certain compensations, is sent to a scramble PWM generator to be distributed according to a new set of rules that involves a compensation image data K. Image data K can be an empirical value or obtained according a formula using coefficients p and q, which can be obtained by calibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.