Liquid-crystal panel of polymer dispersed type, method of manufacturing the same, and liquid crystal display apparatus
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKazuo Inoue, Tsuyoshi Uemura
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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKazuo Inoue, Tsuyoshi Uemura
Estimating the term…
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 μm 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.
A liquid-crystal panel comprising:
A liquid-crystal panel comprising:
A method of manufacturing a liquid-crystal panel comprising the steps of:
A method of manufacturing a liquid-crystal panel comprising the steps of:
A liquid-crystal display apparatus comprising:
A liquid-crystal display apparatus comprising:
Dependencies are inferred from the claim text.