Sharp Kabushiki Kaisha Corporation

Fujitsu Display Technologies Corporation

Hiroyuki Sugimura

Satoshi Murata

Norimichi Nakayama

Hiroyasu Inoue

Yoshio Koike

Kunihiro Tashiro

Minoru Otani

Hidehiko Suzuki

Takuya Yoshimi

Satoru Imai

Hidefumi Yoshida

Hideaki Tsuda

Yoji Taniguchi

Shota Makimoto

Tadashi Hasegawa

Tetsuya Kida

Yuji Nakahata

Taiji Yuhara

An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material made of a photo-curing type material which seals liquid crystal sandwiched between substrates, and a shading film having a shading area which overlays a red-colored layer transmitting red light, a green-colored layer transmitting green light and a blue-colored layer transmitting blue light, wherein only the blue-colored layer is formed in an area of the shading film contacting with the sealing material and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.

Liquid crystal display and method of fabricating the same

A method of manufacturing a liquid crystal display device in which liquid crystal is sealed between substrates using a one drop fill method. Dropping of liquid crystal is controlled so that the dropping quantity of the liquid crystal is reduced in an area including the vicinity of a seal material on a side with a relatively narrow cell gap width while the dropping quantity of the liquid crystal is increased in an area including the vicinity of the seal material on a side with a relatively broad cell gap width. Alternatively, dropping of the liquid crystal is controlled so that the number of times the liquid crystal is dropped is reduced in the area including the vicinity of the seal material on one side while the number of times the liquid crystal is dropped is increased in the area including the vicinity of the seal material on another side without changing the dropping quantity of one drop.

Method of manufacturing liquid crystal display device and one drop fill apparatus used for the same

A method of manufacturing a liquid crystal display device by sealing liquid crystals between the substrates relying upon a drop-injection method making it easy to determine a suitable dropping amount of the liquid crystals. The method comprises forming pillar spacers for maintaining a cell thickness on a CF substrate, measuring the height of the pillar spacers, determining the dropping amount of the liquid crystals based on the number of times of executing a step of forming an alignment film again effected for the CF substrate after measuring the height of the pillar spacers, dropping the liquid crystals in the determined dropping amount onto the CF substrate or onto a TFT substrate, sticking the CF substrate and the TFT substrates together in vacuum, and returning the pressure back to the atmospheric pressure to inject the liquid crystals into between the two substrates.

Method of manufacturing liquid crystal display

An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing materialmade of a photo-curing type material which seals liquid crystalsandwiched between substratesand, and a shading filmhaving a shading area which overlays a red-colored layertransmitting red light, a green-colored layertransmitting green light and a blue-colored layertransmitting blue light, wherein only the blue-colored layeris formed in an area of the shading film contacting with the sealing materialand the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.

The present invention relates to a method for manufacturing a liquid crystal display utilizing the dispense-injection method, and it is an object of the invention to provide a method for manufacturing a liquid crystal display which allows an optimum quantity of liquid crystals to be dispensed on each substrate. At a dispense-injection step, in the case of a two-shot process for fabricating two liquid crystal display panels from a single glass substrate, the heights of support posts on two CF substrates(let us call them surfaces A and B) having columnar spacers formed thereon are measured at a plurality of points (e.g., five locations indicated by numeralsthrough) on each of the surfaces A and B using a laser displacement gauge and an average value of the height is obtained. The support post height of the columnar spacers is thus measured in advance to control the quantity of dispensed liquid crystals based on the measured value.

Method for manufacturing liquid crystal display

A dispenser has a syringe having a nozzle at one end thereof and a plunger fitted in the syringe from the other end of the syringe. One end of a pipe is connected to a portion of the syringe between the one end and the other end of the syringe. A liquid material tank is connected to the other end of the pipe. The liquid material tank is arranged so that a level of the liquid material in the liquid material tank is higher than in the syringe. The dispenser can be used for drip injection method for producing a liquid crystal display device to stably drip droplets of a liquid crystal onto a substrate of a liquid crystal display device.

Dispenser for discharging liquid material

A liquid crystal display device has a liquid crystal inserted between first and second substrates and surrounded by a peripheral seal. The liquid crystal is dripped onto the first substrate in an area defined by the seal of the first substrate. The first substrate and the second substrate are joined or bonded together under pressure in a vacuum chamber. The chamber is then exposed to the atmosphere while keeping the first substrate and the second substrate under pressure. The pressure is then released and thereafter light is irradiated onto the peripheral seal. The vacuum chamber includes upper and lower surface plates to support the substrates. The surface plate includes an electrostatic chuck and a vacuum attraction passage provided in the chuck.

Method and apparatus for fabricating liquid crystal display device

An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing materialmade of a photo-curing type material which seals liquid crystalsandwiched between substratesandand a shading filmhaving a shading area which overlays a red-colored layertransmitting red light, a green-colored layertransmitting green light and a blue-colored layertransmitting blue light, wherein only the blue-colored layeris formed in an area of the shading film contacting with the sealing materialand the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.

There is provided a liquid crystal display device manufacturing method that comprises the steps of forming a sealing member along a periphery of a display area on a first surface of a first substrate, dropping a liquid crystal to the first surface of the first substrate from a top end of a liquid crystal supply needle provided to a lower end of a syringe in which the liquid crystal is filled, and dropping down the liquid crystal adhered to a surface of the liquid crystal supply needle onto the first substrate by an external force in a middle of dropping of the liquid crystal or after the liquid crystal is dropped. Accordingly, an amount of liquid crystal supplied to the substrate can be controlled with high precision.

Liquid crystal display device manufacturing method and liquid crystal display device manufacturing system

The present invention relates to a method for manufacturing a liquid crystal display utilizing the dispense-injection method, and it is an object of the invention to provide a method for manufacturing a liquid crystal display which allows an optimum quantity of liquid crystals to be dispensed on each substrate. At a dispense-injection step, in the case of a two-shot process for fabricating two liquid crystal display panels from a single glass substrate, the heights of support posts on two CF substrates having columnar spacers formed thereon are measured at a plurality of points (e.g., five locations) on each of the surfaces using a laser displacement gauge and an average value of the height is obtained. The support post height of the columnar spacers is thus measured in advance to control the quantity of dispensed liquid crystals based on the measured value.

Growing community of inventors

Kawasaki, Japan

Hiroyuki Sugimura