In Western art history, multi-panel paintings are most famously associated with sacred altarpieces rising above church choirs, while in East Asia they evolved primarily as freestanding folding screens that shape domestic and ceremonial interiors. Whether monumental or small enough to hold in the hands for private prayer, hinged panels turn viewing into an active experience—concealing and revealing images across space and time.
Sacred Hinges: Diptychs, Triptychs, and Polyptychs
From the 13th century onward, winged panel paintings became a focal point of European church altars, while smaller hinged panels served travelers and private devotion at home. Evolving in part from winged reliquaries whose doors opened to reveal sacred relics within, multi-panel paintings are classified by the Greek root ptychē ("fold" or "layer," from ptyssein, "to fold"):
- Diptych: two hinged panels;
- Triptych: three panels (a central panel flanked by two folding wings);
- Polyptych: four or more joined or hinged panels.
Beyond protecting delicate painted surfaces during travel or Lent, hinged wings brought theatrical drama to the Christian liturgy: swinging open the shutters on feast days unveiled a dazzling spiritual revelation within.
Altarpiece Hierarchy and Grünewald’s Isenheim Altarpiece
In a classic European triptych, the central panel commands visual and theological priority—depicting the Crucifixion, the Nativity, or the Enthroned Virgin—while the flanking wings and the predella (the horizontal base below) house narrative episodes, patron saints, and kneeling donors. In Hugo van der Goes’s monumental Portinari Altarpiece (The Adoration of the Shepherds, c. 1475), for example, Florentine banker Tommaso Portinari and his family kneel in prayer across the side wings alongside their patron saints, while the exterior backs of the shutters are painted in grisaille so the work remains visually complete even when closed.
The emotional and structural pinnacle of this tradition is Matthias Grünewald’s Isenheim Altarpiece (1512–1516), painted for the hospital chapel of the Monastery of St. Anthony in Isenheim, Alsace (now in Colmar, France), where monks cared for sufferers of "St. Anthony’s Fire" (ergotism). Built with two sets of folding wings and three distinct views, the polyptych opens from its harrowing closed state—where Christ’s plague-scarred body hangs taut in a wrenching "Y" on the cross above a Lamentation predella—to radiant interior visions of the Concert of Angels, Nativity, and Resurrection, before finally revealing Nikolaus Hagenauer’s gilded carved shrine. Four centuries later, German artist Otto Dix modeled his anti-war triptych The War (Der Krieg, 1929–1932) directly on Grünewald’s masterpiece—including a coffin-like predella of dead soldiers—yet fixed his panels permanently open, offering no redemptive escape from the nightmare of modern battlefields.
East Asian Folding Screens (Byōbu) and Ukiyo-e Triptychs
Across China, Korea, and Japan, multi-panel painting flourished through the folding screen (Japanese: byōbu, "wind wall"). Constructed from lightweight wooden lattice panels covered in layered paper or silk and joined by flexible paper hinges, screens created a seamless, panoramic surface that could fold smoothly across a room.
In 16th- and 17th-century Japan, masters of the Kanō school elevated the multi-panel screen to epic lyrical heights. In Autumn Millet and Small Birds (early 17th century, The Met), Kanō Sanraku (1559–1635) stretched a continuous composition across an eight-panel folding screen nearly 3.5 meters wide, using luminous gold-leaf squares to bathe the ripening harvest in warm autumn light. By around 1800, Edo printmakers adapted this panoramic multi-panel sensibility for the general public: in affordable ukiyo-e woodblock print triptychs, artists like Utagawa Toyokuni joined three vertical paper sheets side by side to stage sweeping views of bustling Kabuki theaters and Edo street life.
