Patent · US Active

Luminescence-based reflective pixel

US9081140B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Gary Gibson · Palo Alto, US
Xia Sheng · Palo Alto, US
Patricia A. Beck · Mountain View, US

Key dates

Filing date	Apr 22, 2010
Grant date	Jul 14, 2015
Priority date	—
Expiry date	Feb 5, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02F2202/046
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Disclosed herein are various embodiments related to luminescence-based reflective display pixels. In one embodiment, among others, a luminescent-based pixel includes a luminescent layer including luminophores distributed in a matrix. The luminescent layer is configured to receive light from an ambient environment through a first side of the luminescent layer and has an index of refraction that is higher than an index of refraction of the ambient environment. The luminescent-based pixel includes a mirror disposed on a second side of the luminescent layer that is opposite the first side of the luminescent layer. The luminescent-based pixel also includes a diffusive surface to randomize the direction of incident light.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.