Use 'on view' when something is available for everyone to see, often in a gallery or museum setting.

Public Display

'On view' often suggests that the display is not permanent but set for a limited time.

Temporary Exhibition

Items 'on view' are not hidden; they are meant to be easily seen and accessed by viewers.

Use 'on view' when someone inspects something closely, as if putting it under a magnifying glass.

Implies the presence and attention of someone actively looking at something for a reason, like analysis or investigation.

The phrase suggests a specific intention for viewing, not just a casual glance.