Apparatus and method for inspecting bonded plate-like objects

Abstract

PROBLEM TO BE SOLVED: To provide a pasted panel-like body inspection apparatus capable of comparatively easily inspecting an interval between an edge end of a panel-like body and an edge end of adhesive in a pasted panel-like body.SOLUTION: The pasted panel-like body inspection apparatus includes: a line sensor camera 50; illumination means 51; and a processing unit for processing a video signal outputted from the line sensor camera 50 for scanning a pasted panel-like body 10 illuminated by the illumination means 51. The processing unit includes: inspection image information generation means for generating inspection image information composed of shade values in each pixel based on the video signal; and an inter-edge end distance information generation means for generating inter-edge end distance information expressing an interval between the edge end of a first panel-like body 11 and the edge end of adhesive 13 on an inspection line, based on a shade value profile on the inspection line crossing the edge end of the first panel-like body 11 which is obtained from the inspection image information, to provide an inspection result based on the inter-edge end distance information.

Description

Technical field [0001] The present invention relates to an adhesive plate-shaped body inspection device and method for photographing and inspecting an adhesive plate-shaped body formed by bonding two plate-shaped bodies with an adhesive. Background technique [0002] On touch-panel type liquid crystal display panels, for example, Figure 1A as well as Figure 1B The sensor panel assembly 10 (adhesive plate-like body) is shown. Here, Figure 1A Is a cross-sectional view showing the configuration of the sensing panel assembly 10, Figure 1B It is a top view showing the structure of the sensing panel assembly 10. The sensor panel assembly 10 uses a light-transmitting adhesive 13 (resin) coated on the entire surface of the sensor panel 11, and the sensor panel 11 (first plate) and the protective glass 12 ( The second plate-shaped body) has a structure formed by bonding, and circuit components such as sensor elements and grids are arranged on the sensor panel 11. The sensor panel 11 h...

AI Technical Summary

Problems solved by technology

[0008] In the case where the above-mentioned prior art (refer to Patent Document 1) is applied to the inspection device of the sensing panel assembly 10 (bonded plate-shaped object), in order to detect one edge of the sensing panel 11 (plate-shaped object) position (the position of the edge), it is necessary to average the signal intensity for a plurality of small areas, and it takes a lot of time to detect a plurality of edge positions (the position of the edge) on the plate-shaped object

In addition, in the above-mentioned prior art, although the edge of the waterproof board with a relatively high-precision shape can be detected, it is difficult to detect the edge of the adhesive 13 in the overflow state or the underflow state of the above-mentioned shape.

Therefore, even if the above-mentioned conventional technology (refer to Patent Document 1) is applied to the inspection device of the above-mentioned sensing panel assembly 10 (bonded plate-shaped body), it is not easy to obtain body) and the distance between the edge of the adhesive 13

That is, the distance between the edge of the sensing panel 11 (plate-shaped body) and the edge of the adhesive 13 cannot be easily inspected (evaluated).

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