Hitachi, Ltd.

Rokuro Watanabe

Takashi Inoue

Susumu Aiuchi

Toshio Asano

Shigenobu Maruyama

Takeo Sawaguchi

Tadashi Ishibashi

Masaharu Kohyama

A method for repairing a liquid crystal display provided with a light transmitting member having an image display section. The method includes filling a filler, which has a refractive index substantially equal to that of the light transmitting member, into a scratch or scratches formed on inside and outside surfaces of the light transmitting member so as to repair the scratch or scratches.

Image display device and its repairing method and apparatus

An image display device for repairing a scratch or scratches on a surface or surfaces of a light transmitting member having an image display section such an extent that the presence of the scratch or scratches cannot be visually perceived at at least in a bright view distance in all directions, and in which device a liquid filler having a refractive index equivalent to or on the same order of that of the light transmitting member is locally filled only into an area of the scratch or scratches, and the filler is cured. By controlling an amount of the filler so that a difference in level between a surface of the light transmitting member and a surface of the filler is at least &plusmn;5.0 &mgr;m or less and that an angle defined between a surface of the filler and a surface of the light transmitting member is at least 45 degrees or less or preferably at least 10 degrees or less, it is possible to exhibit display quality to such a degree that the presence of the scratch or scratches cannot be recognized.

A method for producing liquid crystal cells is disclosed, in which a pair of large-area glass substrates are put together, opposite to each other and spaced a small distance apart from each other to form integrally a plurality of liquid crystal cells between the substrates, and by splitting the glass substrate assembly, the individual cells are separated from one another. Each of the glass substrates, which have the same structure, has first regions to serve as upper substrate sections and second regions to serve as lower substrate sections disposed alternately thereon and predetermined electrodes are formed on the first and the second regions. The two glass substrates are disposed face to face with each other in such a manner that the first and the second regions of one substrate are opposite to the second and the first regions of the other substrate. The splitting operation is performed by placing the glass substrate assembly on two parallel supports and by subjecting the assembly to bending distortion by applying a pressing force. The pressing force is determined depending on the relationship between the distance between the supports and the degree of the bending distortion.

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Mobara, Japan

Rokuro Watanabe