发明名称 |
PROJECTION PICTURE DISPLAY |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small and high-luminance projection picture display. <P>SOLUTION: The projection picture display comprises: a liquid crystal display element for forming an optical image; a polarizer for polarizing a light that penetrates the liquid crystal display element; and a cooling system for cooling the polarizer at a temperature of 150°C or less. When a value obtained by dividing a light flux amount [lm] of the projection picture display by a size [inch] of the liquid crystal display element is 4500±10% [lm/inch], initial reflectivity of the polarizer is set at 3.7% or less. When the value obtained by dividing the light flux amount [lm] of the projection picture display by the size [inch] of the liquid crystal display element is 3000±10% [lm/inch], the initial reflectivity of the polarizer is set at 7.7% or less. When the value obtained by dividing the light flux amount [lm] of the projection picture display by the size [inch] of the liquid crystal display element is 6000±10% [lm/inch], the initial reflectivity of the polarizer is set at 0.7% or less. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2012242706(A) |
申请公布日期 |
2012.12.10 |
申请号 |
JP20110114308 |
申请日期 |
2011.05.23 |
申请人 |
HITACHI CONSUMER ELECTRONICS CO LTD |
发明人 |
SOMEYA YUSAKU;INUI MASAAKI;HIRATA KOJI |
分类号 |
G03B21/00;G02B5/30;G02B27/28;G02F1/13;G02F1/1335;H04N5/74 |
主分类号 |
G03B21/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|