Liquid crystal display device and inspection method thereof
US7411643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2005 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Jul 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1339
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display (LCD) panel and inspection method thereof. The LCD panel includes a first substrate having a reflective material layer formed on a first side of the first substrate; a second substrate having a black matrix formed on a first side of the second substrate, the first side of the second substrate face on to the first side of the first substrate; and a liquid crystal layer sandwiched between the first substrate and the second substrate; wherein the second substrate has at least one inspection area allowing light to pass to the first side of the first substrate. The inspection method includes: passing light through the inspection area to the first side of the first substrate; and inspecting cell process parameters of the LCD panel through light reflected from the first side of the first substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.