Display substrate with bragg reflection unit for each of the display units of at least three primary colors
US9543545B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2014 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | May 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/876
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to the technical field of display, and provides a display substrate and a preparing method thereof which can solve the problem of lower light-emitting efficiency of the display substrate in the prior art. The display substrate of the present invention comprises a plurality of display units of at least two different colors. The display substrate further comprises a plurality of bragg reflection units in different regions corresponding to respective display units, each bragg reflection unit comprises first structural layer and second structural layer which are alternately stacked with each other and have different refractive indexes; thickness of each of the first and second structural layers is ¼n wavelength of incident light from corresponding display unit, wherein n is refractive index of the first or the second structural layer. The display substrate of the present invention has higher light-emitting efficiency and is applicable to full-color display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.