Diptych

A diptych (nimai-tsuzuki) is a composition using two oban-sized sheets displayed together to form a single wide image. Less common than the three-panel triptych, the diptych format was used for subjects that required more space than a single sheet but less than a full triptych — intimate interior scenes, paired figure compositions, and medium-scale landscapes.

The diptych format presents particular compositional challenges. Unlike the triptych, which has a natural center panel flanked by wings, the diptych divides at its exact center. Artists had to design compositions that either unified the two halves seamlessly or created a meaningful visual relationship between them. Solutions included placing a figure or architectural element at the center join, creating a continuous landscape, or using the division as a narrative device (showing cause and effect, or before and after).

Like triptychs, each panel of a diptych was sold separately, so they frequently survive as individual sheets. Reuniting separated diptych and triptych panels is one of the pleasures of collecting — finding the matching panel to a print that has been separated from its companion for over a century. The format was used by many major ukiyo-e artists and appears occasionally in shin-hanga work.