Matsushita Electric Industrial Co., Ltd.

Norihiko Egami

Takashi Ichiyanagi

Masaru Nagaike

Hideo Suzuki

Manabu Kakino

Hideki Matsukawa

Naoto Sakai

Shiro Sumita

Osamu Hirota

Nobutaka Hokazono

Tatsuhiro Otsubo

Susumu Inoue

A liquid crystal display provided in which two transparent substrates are correctly positioned. For this purpose, a lower drawing station disposed below a lower substrate and movable in the horizontal direction includes holes in its portion faced with the lower substrate. An upper drawing station disposed above an upper substrate includes holes in its portion faced with the upper substrate. A void-free elastic sheet is disposed between the lower substrate and the lower drawing station or between the upper substrate and the upper drawing station

Apparatus and method for manufacturing liquid crystal display using void-free elastic sheet

A lower substrate,on which an adhesive,has been applied and a liquid crystal material,has been deposited is held fixedly by vacuum suction with a suction-holding mechanism,within a vacuum chamber C. An upper substrate,held fixedly by vacuum suction with a suction-holding mechanism,is brought opposite to the lower substrate,with a predetermined spacing therebetween, and either or both of the substrates is/are brought in proximity with each other for bringing the upper substrate into contact with the adhesive,or the liquid crystal material,. Both substrates,are then moved relative to each other in a direction parallel to the substrate surface for position alignment, and thereafter, the substrates are moved closer to and pressed to each other so that they are affixed together.

Method of manufacturing liquid crystal display device

A method of manufacturing an LCD device, in which, a seal pattern is formed by applying a sealing material for enclosing a liquid crystal on one of a pair of substrates between which liquid crystal is sandwiched. Spacers are formed on the other substrate to determine a cell gap, then the substrates are respectively held by a pair of surface plates disposed in a vacuum chamber, in which at least one of the surface plates is movable. The air-pressure of the vacuum chamber is then decreased, and the alignment of a pair of substrates is performed and a cell gap is formed by pressing the substrates toward each other, by which the gap precision, the gap uniformity and the alignment precision of an LCD device can be improved.

Method of manufacturing liquid crystal display device with a double seal

A flat display device includes cathodes, a screen plate having a fluorescent screen, a plate-like electrode for controlling electron beams from the cathodes to the fluorescent screen, and a frame body for supporting the plate-like electrode. The frame body securely fixes both ends of the plate-like electrode at two opposite sides thereof, and has an elastic body for supporting the plate-like electrode in a stretched state by a spring force of the elastic body. The flat display device is made by the steps of pressing a pair of leaf springs provided respectively at two confronting sides of a frame body to thereby bend the frame body in such directions that the confronting sides become close to each other, securely fixing both ends of a plate-like electrode to the pair of bent leaf springs, and releasing the pressing of the leaf springs to thereby restore the leaf springs.

Flat display device and manufacturing method thereof

A method for fixing to a frame an electrode or a shadow mask for an image receiving tube. The method includes steps for stretching, in opposite directions, supporting ends of a rectangular mask plate having apertures formed between the supporting ends, in order to generate a tensile force having a uniform distribution over the entire surface of the plate. The method also includes pressing inwardly and bending a pair of elastic supporting elements, constituting two confronting sides of a frame, so that a distribution of the pressing force in a direction of each of the sides almost balances with a distribution of the tensile force. The supporting ends of the mask plate are then rigidly fixed to both of the bent supporting elements of the frame. The stretching and pressing forces applied to the mask plate and the frame are then released.

Method of fixing to frame electrode or shadow mask for color image

A color selecting electrode for a color-picture tube, includes a rectangular frame-shaped frame having a pair of mutually-opposite long sides and a pair of mutually-opposite short sides, and a mask plate which is stretchedly supported on top surfaces of the frame while receiving a resilient spring force exerted from the frame, the long sides having a greater section modulus and a greater rigidity than the short sides. A method of manufacturing the color selecting electrode includes the step of welding, to the frame pressed inward by an equally-distributed force applied to the pair of long sides and the pair of short sides, the mask plate of which four sides are stretched outward by a distributed force which approximately counterbalances the equally distributed force.

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Hirakata, Japan

Norihiko Egami