发明名称 |
EDGE-ILLUMINATED LIQUID CRYSTAL DISPLAY DEVICES |
摘要 |
EDGE-ILLUMINATED LIQUID CRYSTAL DISPLAY DEVICES A high contrast display is provided by illuminating a polymer dispersed liquid crystal (PDLC) display panel through opposite edges thereof. Light is scattered out the front of the panel from non-activated areas of the PDLC in which the refractive indices of the liquid crystal and polymer matrix materials are mismatched. For a direct view transmission mode display, the rear of the panel is blackened so that activated areas of the PDLC in which the refractive indices of the materials are matched transmit edge-illuminated and ambient light and appear black. For a reflection mode display usable in combination with projection optics, the rear of the panel is provided with a mirror surface, and ambient light is prevented from reaching the panel.
|
申请公布号 |
CA2016571(A1) |
申请公布日期 |
1990.11.25 |
申请号 |
CA19902016571 |
申请日期 |
1990.05.11 |
申请人 |
HUGHES AIRCRAFT COMPANY |
发明人 |
MARGERUM, J. DAVID;LACKNER, ANNA M.;SEILER, PAUL J. |
分类号 |
G02F1/1333;G02F1/1334;G02F1/1335;G02F1/13357;G02F1/1343;G09F9/00;(IPC1-7):G02F1/133 |
主分类号 |
G02F1/1333 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|