Apparatus for inspecting display panel and method for inspecting surface of display panel
US12333709B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2023 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Aug 2, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/9513
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for inspecting a display panel includes a light source irradiating light toward a surface of the display panel; a light detector detecting light reflected from a region of interest on the surface of the display panel to generate a captured image; a lens system including at least one lens receiving the reflected light and providing reflected light to the light detector; and an analyzer quantifying a degree of curvature of the region of interest based on a result of comparing modeling data including distribution of reference light intensity for the region of interest with detection data corresponding to the captured image, and determining whether the display panel is defective based on a quantified result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.