Light-emitting display device including a light diffusing bonding layer
US4168102A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1977 |
| Grant date | Sep 18, 1979 |
| Priority date | — |
| Expiry date | Oct 12, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light-emitting display device comprising a printed wiring board impressed with a wiring pattern; a light-emitting element mounted on the printed wiring board and electrically connected to the wiring pattern; a reflector provided with a penetrating hole for receiving the light-emitting element at its lower opening and disposed on the printed wiring board, the inner wall of the penetrating hole acting as a reflection plane; a light-permeable film containing light-scattering materials and closing the upper opening of the penetrating hole; and a bonding layer containing light-scattering material, the bonding layer bonding the light-permeable film to the reflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.