Jp2006234470

An inspection method and an inspection device technology, applied to disk-shaped record carriers, optics, instruments, etc., can solve the problems of deviation of inspection results, inability to fully remove netting, deviation of color moiré inspection results, etc.

CN1834733AInactive Publication Date: 2006-09-20TORAY ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2006-09-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a color blur inspection method and the apparatus thereof, which could inspect the existence and level of color blur in high precision without the influence by personal difference and status difference of individual. The present invention could eliminate the Mohr's stripes, adjust the focus of focusing optical system 34, employ a video camera device 35 to capture the substrate 31, and inspect the existence and level of color blur according to the photo data.
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Description

technical field

[0001] The present invention relates to a method and an apparatus for inspecting the presence, degree, etc. of color moiré (mura) of a color film formed on a substrate in a color filter manufacturing process and the like. Background technique

[0002] Conventionally, it is known that color moiré occurs due to uneven dispersion of pigments, aggregation of components, and changes in film thickness in the manufacturing process of color filters used in flat panel displays. In order to prevent the problem of continuing the manufacturing operation in the state where the color moire is generated, the presence or degree of the color moire is inspected using a camera and a light source.

[0003] In addition, a method has been proposed in which a display screen of a display device to be inspected, such as an LCD, is photographed by an imaging device having a CCD or the like, and the quality of the display device to be inspected is inspected (see Patent Document 1). Th...

Examples

Embodiment Construction

[0031] Hereinafter, embodiments of the color moiré inspection method and device thereof according to the present invention will be described in detail with reference to the drawings.

[0032] figure 1 It is a schematic diagram showing main parts of a color filter manufacturing apparatus for flat panel displays to which the color moiré inspection method of the present invention is applied.

[0033] This color filter manufacturing apparatus includes: a coating device 1 for coating a light-transmitting color coating on a light-transmitting substrate such as glass; and a dryer 2 for drying the coated color coating. and a color moiré inspection device 3 for inspecting the presence, degree, position, etc. of color moiré of the dried color film.

[0034] For example, a color filter is formed by arranging at least three primary colors in a matrix, so a coating device 1 , a dryer 2 , and a color moiré inspection device 3 are provided for each color.

[0035] figure 2 It is a schema...