Display assembly and display apparatus
US10317773B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Sep 20, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Sep 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display assembly includes a convex lens, a light-absorbing layer, and a refractive index-adjustable layer disposed therebetween. The refractive index-adjustable layer has a refractive index adjustable between less than, and no less than, a critical value, configured such that a light incident into the convex lens has a total reflection if the refractive index of the refractive index-adjustable layer is less than the critical value, and transmits through the refractive index-adjustable layer and reaches the light-absorbing layer for absorption if the refractive index of the refractive index-adjustable layer is no less than the critical value. The critical value can be a refractive index of the convex lens if it is in direct contact with the refractive index-adjustable layer, or can be a refractive index of a transparent film layer disposed between the convex lens and the refractive index-adjustable layer and in direct contact with the refractive index-adjustable layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.