Circuit board, substrate module, and display device
US9060429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2010 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Oct 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/166
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a circuit board in which visibility of an alignment mark is improved.In a case of manufacturing a substrate module in which a touch panel (20) and an FPC (50) are electrically connected, an alignment mark in the FPC (50) is formed by an opaque metal film, so that visibility is high. Consequently, when an alignment mark (25) in the touch panel (20) is also formed by an opaque metal film, the visibility of the alignment mark (25) also becomes high. By performing alignment using the alignment marks having high visibility, alignment between the touch panel (20) and the FPC (50) can be performed easily with high precision. As a result, the yield of the substrate module increases and modification of an alignment apparatus used for alignment becomes unnecessary, so that the manufacturing cost of the substrate module can be decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.