Invention Application
- Patent Title: Photo-luminescent liquid crystal display
- Patent Title (中): 光致发光液晶显示屏
-
Application No.: US11410621Application Date: 2006-04-25
-
Publication No.: US20070007881A1Publication Date: 2007-01-11
- Inventor: Byung-ki Kim , Seoung-jae Im , Jae-young Choi , Eun-sung Lee , Eun-joo Jang , Jae-hee Cho
- Applicant: Byung-ki Kim , Seoung-jae Im , Jae-young Choi , Eun-sung Lee , Eun-joo Jang , Jae-hee Cho
- Priority: KR10-2005-0036067 20050429
- Main IPC: H01J1/62
- IPC: H01J1/62 ; H01J63/04

Abstract:
A photo-luminescent liquid crystal display (PL LCD) includes: a light control unit which includes a liquid crystal (LC) layer modulating the UV light and electrodes driving the LC layer; and a light emitting layer which emits light by the UV light transmitted through the light control unit. The light emitting layer includes inorganic phosphors and semiconductor quantum dots (QDs) having a quantum confinement effect. The PL LCD includes adding QDs having a high quantum efficiency into luminescent substances having lower light utilization efficiency than other colors, for example, red phosphor having very low quantum efficiency to improve the light utilization efficiency, thereby improving the color balance.
Public/Granted literature
- US07649594B2 Photo-luminescent liquid crystal display Public/Granted day:2010-01-19
Information query