Canon Kabushiki Kaisha

Hiroshi Fujiike

Satoshi Wada

Yoshitomo Marumoto

Makoto Akahira

Nobuhito Yamaguchi

Hideto Yokoi

Yoshihiro Shigemura

Satoshi Hayashi

Tadao Saito

Tetsuo Okabe

Takahiro Mori

Hiromitsu Yamaguchi

Akio Kashiwazaki

Kenichi Iwata

Akio Nishi

Tateki Nakamura

Masaru Kikuchi

A color filter manufacturing apparatus of this invention includes a plurality of ink-jet heads () each having a first ink discharging nozzle group () in which the pitch of a plurality of ink discharging nozzles in the Y-axis direction is set to be equal to the pitch of pixels of the same color in the Y-axis direction, and a second ink discharging nozzle group having a nozzle pitch set to be equal to the pixel pitch in the Y-axis direction like the first ink discharging nozzle group. Control of an ink discharging operation is performed for only one of the first and second ink discharging nozzle groups which is to be used to color pixels of corresponding colors on a substrate ().

Color filter manufacturing method and apparatus, ink-jet device, color filter, display device, and apparatus having display device

A method of manufacturing a color filter having a plurality of colored pixels on a substrate by discharging an ink from an ink-jet head having a plurality of ink discharging nozzles while performing relative movement of the ink-jet head and the substrate, includes the step of dividing the plurality of ink discharging nozzles for discharging the ink having a same color into a plurality of nozzle groups, each nozzle group including every N nozzles, with N being a positive integer. In coloring one substrate by performing the relative movement a plurality of times, an ink discharging operation is performed such that inks are discharged by using only one nozzle group of the plurality of nozzle groups in the plural relative movements, and ink discharging nozzles which are used in a subsequent relative movement always include all of, or part of, ink discharging nozzles which have been used in a previous relative movement.

A display apparatus includes a color filter with a color portion formed in at least one recess portion surrounded by partition walls on a substrate and a protective layer formed on the color portion and the partition walls. A thickness of the color portion is 20% to 80% of a thickness of the partition walls, and a thickness of a first protective layer formed on the partition walls is smaller than a thickness of a second protective layer formed on the color portion. In addition, a counter substrate faces the color filter, a liquid crystal layer exists between the color filter and the counter substrate, and a spacer is arranged on the first protective layer formed on the partition walls.

Display panel having a color filter and a protective layer of heat melted material and method of manufacturing the display panel

Color filter manufacturing method and apparatus, ink jet device, color filter, display device, and apparatus having display device

It is an object of this invention to provide a color filter manufacturing method capable of efficiently using an ink-jet head. To achieve this object, there is provided a color filter manufacturing method of discharging an ink from a plurality of ink discharging nozzles onto a plurality of pixels and forming colored portions while an ink-jet head having the plurality of ink discharging nozzles is relatively scanned with respect to a body to be colored on which the pixels, onto which the ink is to be landed, are aligned in advance, including the steps of, when some of the plurality of ink discharging nozzles for discharging the ink onto the pixels are defective, stopping discharging of the ink from the defective nozzles, and compensating for a lack of an ink amount in the Nth pixel owing to an omission of the defective nozzles, by other nozzles for discharging the ink onto the pixels.

Color filter manufacturing method, color filter, display device, and apparatus having display device

It is an object of the present invention to provide an ink-jet print method which can uniformly distribute inks within each pixel array when a color filter is to be colored in a plurality of scanning operations. In order to achieve this object, there is provided an ink-jet print method of coloring each pixel array on a substrate by using an ink-jet head having a plurality of ink discharging nozzles while changing the ink discharging nozzle used to color one line for every scanning operation, including discharging the inks discharged in the plurality of scanning operations such that the inks are arranged at equal intervals within each pixel array.

Ink-jet print method and apparatus, color filter, display device, and apparatus having display device

A color filter manufacturing apparatus can manufacture a color filter with less color unevenness in a short period of time. The color filter manufacturing apparatus forms an array of colored portions of a color filter by discharging a plurality of inks from a plurality of discharge orifices at a predetermined density by using an ink-jet head having a plurality of discharge orifices, an ink chamber connected to the plurality of discharge orifices, an ink supply opening for supplying ink to the ink chamber, and an ink exit opening for exiting ink from the ink chamber. The color filter manufacturing apparatus comprises an ink flow generating device for generating a flow of ink from the ink supply opening to the ink exit opening in the ink chamber while discharging ink from the discharge orifices for coloring. The colored portions are formed when a variation rate of ink volume discharged from the plurality of discharge orifices for forming the array of colored portions is &plusmn;3% or less.

COLOR FILTER MANUFACTURING APPARATUS AND METHOD, COLOR FILTER, DISPLAY DEVICE, APPARATUS HAVING THE DISPLAY DEVICE, AND METHOD OF REDUCING UNEVENNESS OF DISCHARGE VOLUME IN PLURAL NOZZLES BY INK CIRCULATION

A color filter manufacturing method manufactures a high-quality color filter by greatly reducing color irregularity in the respective pixels. This is accomplished by manufacturing a color filter by coloring each pixel with a plurality of discharged inks arrayed in the scanning direction while relatively scanning an ink-jet head over a substrate a plurality of times, wherein a coloring operation is performed by changing the discharging positions of inks onto the respective pixels in at least one of a plurality of scanning operations are changed with respect to those in other scanning operations.

Color filter manufacturing method and apparatus, color filter, display device, and apparatus having display device

A color-filter manufacturing method for manufacturing a color filter, with very little color unevenness, in a short period of time. According to the method, at least a single color of red, green and blue ink is discharged onto each pixel of a substrate by using an ink-jet head, and coloring is performed such that color density fluctuation among pixels colored in red is kept 5% or lower, color density fluctuation among pixels colored in green is kept 10% or lower, and color density fluctuation among pixels colored in blue is kept 3% or lower.

Color-filter manufacturing method

A method of manufacturing a color filter by dividing a coloring area on a substrate into a plurality of scan areas and applying ink to each scan area from an ink jet head, wherein an amount of ink to be applied to a boundary area between adjacent scan areas is changed from an amount of ink to be applied to an area except the boundary area.

Color filter manufacture method and liquid crystal display using color filters manufactured by the method

A method of instantly measuring the amount of ink discharged from a nozzle of an ink-jet type printhead in a single discharging operation comprises: a density measuring step of measuring the density of an ink dot formed by ink discharged from the printhead onto a glass plate,and a determining step of determining the amount of the discharged ink on the basis of the density of the ink dot measured in the measuring step.

Method and apparatus for measuring the amount of discharged ink, printing apparatus, and method of measuring the amount of ink discharged in the printing apparatus

In a color filter manufacturing method according to the present invention, a color filter is manufactured by coloring the respective pixels with a plurality of discharged inks arranged in the scanning direction while an ink-jet head having a plurality of ink discharging nozzles in a direction substantially perpendicular to the scanning direction is scanned over a substrate. A coloring operation is performed while the ink discharging pattern is changed for each of the arrayed pixels or each pixel group.

Color filter manufacturing method and apparatus, color filter, display device, apparatus having display device, and print method

A method for manufacturing a color filter including a black matrix having apertures, and pixels obtained by coloring the aperatures on a substrate includes the step of correcting coloring conditions for the color filter based on a distribution of areas of the respective apertures. A liquid-crystal device includes a color filter manufactured by the method, a facing substrate facing the color filter, and a liquid crystal sealed between the color filter and the facing substrate.

Method for manufacturing a color filter, and a liquid-crystal device using a color filter manufactured by the method

It is an object of the present invention to provide an ink-jet print apparatus which can easily cope with the manufacture of a plurality of types of color filters having different pixel pitches. In order to achieve this object, an ink-jet print apparatus for performing a print operation on a recording member by discharging an ink thereon while scanning an ink-jet head relative to the recording member is provided. This apparatus includes a motor for pivoting the ink-jet head relative to the scanning direction, a restoring unit for restoring the ink discharging state of the ink-jet head, and a control unit for controlling the pivot angle of the ink-jet head.

Ink-jet print apparatus and method using a pivoting ink-jet recording head

In an inspecting method of a color filter, comprising irradiating light from a light source to a coloring portion, measuring a transmitting light amount transmitted through the coloring portion by a light receiving element, and calculating a coloring density of the coloring portion, the light amount of the light source is set substantially constant, the amount of incident light received by the light receiving element is adjusted by an optical element arranged within an optical path, the transmitting light amount of an uncoloring portion is measured and the coloring density of the coloring portion is inspected by comparing the transmitting light amount of the coloring portion to the transmitting light amount of the uncoloring portion.

Growing community of inventors

Yokohama, Japan

Hiroshi Fujiike