American painter, born in Santa Monica and active mainly in Los Angeles. His early work was influenced by the Abstract Expressionist Clyfford Still, but in the mid-1960s he emerged as a leading exponent of Post-Painterly Abstraction, painting Hard-Edged compositions on shaped canvases (Vector, 1968, Tate). Often his pictures employ motifs such as stripes, zigzags, and chequerboard patterns to create ambiguous or self-contradictory spatial effects, so his work has sometimes been classified as Op art. The major influence on it is Marcel Duchamp, who used perspectival illusions behind a transparent surface.
http://www.irondavis.com/c_words/c1_cat_essys/d16_rose_cat_essy.htm B. Rose, ‘Ronald Davis: Objects and Illusions’, on the artist's website.