发明名称 |
1/4 WAVELENGTH PLATE, OPTICAL UNIT AND REFLECTION LIQUID CRYSTAL DISPLAY USING THE SAME |
摘要 |
A quarter wavelength plate for reducing the dependence of a retardation value on an incident beam angle in optically anisotropic crystals. The quarter wavelength plate is formed of optically anisotropic crystals in a thickness of 0.1 mm to 0.5 mm. The quarter wavelength plate can contribute to a reduction in the dependence of the retardation value on the angle at which a light beam impinges on the quarter wavelength plate, and to a reduction in color shading caused by a rise in temperature. A reflection type liquid crystal display device which employs the quarter wavelength plate can enhance the luminance and contrast. |
申请公布号 |
KR20030066379(A) |
申请公布日期 |
2003.08.09 |
申请号 |
KR20030006048 |
申请日期 |
2003.01.30 |
申请人 |
|
发明人 |
|
分类号 |
G02B5/30;G02B27/28;G02F1/13363;G03B21/00 |
主分类号 |
G02B5/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|