Detecting method and detecting circuit of LCD panel
US11348496B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 19, 2019 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Dec 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A detecting method and a detecting circuit of a LCD panel are provided. The method includes steps of: a detecting module in real time detecting a waveform of a pulse detecting signal inputted into the LCD panel; providing a feedback of the waveform of the pulse detecting signal to a pulse output module; determining whether the waveform of the pulse detecting signal is deformed by the pulse output module; correcting the pulse detecting signal by the pulse output module if the waveform of the pulse detecting signal is determined to be deformed; inputting a corrected pulse detecting signal to the LCD panel to detect the LCD panel. The disclosure prevents from abnormal display panel images resulted from a shorting bar lit-up method, reduces over checking or missing, and find out defects quickly and correctly by operators or detecting equipment to enhance quality and benefits and to reduce cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.