Invention Grant
- Patent Title: Apparatus for selectively backlighting a material
- Patent Title (中): 用于选择性地背光材料的设备
-
Application No.: US11846360Application Date: 2007-08-28
-
Publication No.: US08128249B2Publication Date: 2012-03-06
- Inventor: Andrew Skipor , Rick Latella , Steven Scheifers
- Applicant: Andrew Skipor , Rick Latella , Steven Scheifers
- Applicant Address: US MA Lexington
- Assignee: QD Vision, Inc.
- Current Assignee: QD Vision, Inc.
- Current Assignee Address: US MA Lexington
- Main IPC: F21V33/00
- IPC: F21V33/00

Abstract:
A backlighting device (300, 400, 500, 600) emitting light having a first wavelength includes a first radiation emission device (302), e.g., an electroluminescent lamp, for emitting radiation having a second wavelength. A layer (306) of a plurality of photon emitting particles (308), e.g., free standing quantum dots or phosphorus particles, emits light having the first wavelength in response to the first radiation emission device (302), the first wavelength being larger than the second wavelength. A transparent material (116, 120, 122) overlies the layer of a plurality of photon emitting particles (308), wherein the light having a first wavelength passes through the transparent material (116, 120, 122). Optionally, a filter (402) may be placed over the layer (306) to block the radiation having a second wavelength, and a scattering layer (604) may be placed over the layer (306) to scatter wavelength other than the first wavelength.
Public/Granted literature
- US20090059554A1 APPARATUS FOR SELECTIVELY BACKLIGHTING A MATERIAL Public/Granted day:2009-03-05
Information query