Display device and method of manufacturing flexible printed circuit board
US11178754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2019 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Jan 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/131
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a display panel including a display surface and a rear surface opposite to each other; and a flexible printed circuit board attachable to the display panel at the rear surface of the display panel. The flexible printed circuit board includes a conductive layer, a passivation layer defining an outer surface of the flexible printed circuit board, and a base film between the conductive layer and the passivation layer, the outer surface includes a first region at which the rear surface of the display panel is attachable to the flexible printed circuit board and a second region at which the rear surface of the display panel is not attached to the flexible printed circuit board, and the first region has greater surface roughness than the second region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.