发明名称 |
Liquid-crystal panel of polymer dispersed type, method of manufacturing the same, and liquid-crystal display apparatus |
摘要 |
A liquid-crystal panel comprises a pair of transparent glass substrates each being provided with an electrode. Between the glass substrates are disposed spacers for defining a space and a mixture of droplets of a liquid crystal having a mean diameter of 3.0 mum or less and of a photo-curing polymer. The edge portions of the glass substrates are sealed with a seal polymer. In curing the photo-curing polymer during the process of manufacturing the liquid-crystal panel, the dose of an ultraviolet ray is set to 500 mJ/cm2 or more so as to reduce the diameters of the droplets of the liquid crystal, thereby preventing light leakage in the state without a voltage applied and improving the contrast. If the spacers are colored, the effect of preventing light leakage is increased. If the spacers are subjected to a surface treatment for rejecting the liquid crystal or composed of a polymer material of the same type as that of the photo-curing polymer, variations in diameter of the droplets of the liquid crystal can be prevented. With the structure, it becomes possible to provide a liquid-crystal panel in which light leakage in the black mode is reduced and which presents uniform and high-contrast display of images.
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申请公布号 |
US6246456(B1) |
申请公布日期 |
2001.06.12 |
申请号 |
US19980206131 |
申请日期 |
1998.12.07 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
INOUE KAZUO;UEMURA TSUYOSHI |
分类号 |
G02F1/1334;G02F1/1339;(IPC1-7):G02F1/133;G02F1/133 |
主分类号 |
G02F1/1334 |
代理机构 |
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