Consumer Electronics

OLED Gauging

Cognex vision provides 100% in-line monitoring of the assembly process using gauging tools that calculate CPK measurements

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OLED manufacturers use gauging tools to determine the accuracy of their alignment tasks and to assess repeatability. Machine vision can provide 100% in-line monitoring of the OLED assembly process and calculate “co-efficient of process performance” measurements (CPK measurement). CPK measurement works at any stage of production, allowing OEMs to adjust upstream variables to reduce error.

In OLED display module assembly, CPK measurement and gauging occur after lamination and bonding. This type of gauging involves re-locating the key features of two bonded or laminated parts.

Cognex provides gauging tools for CPK measurement with both its In-Sight vision systems and AlignPlus solutions. In-Sight systems and AlignPlus gauge the alignment accuracy of parts based on specific features that do not have to be in the camera’s field of view. These capabilities support 100% in-line CPK measurement, helping OEMs catch errors before they spread and eliminating the need for separate off-line inspection stations.

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