Abstract: Proposed are a display panel structure consisting of a composite material phase and capable of implementing four full colors and a transmission mode conversion, and a driving method therefor enabling conversion to a reflection mode, a shielding mode, and the transmission mode. The display panel structure includes: an upper substrate; a lower substrate; an upper electrode disposed on a surface of the upper substrate; a lower electrode disposed on a surface of the lower substrate; and a partition wall defining a unit cell region formed between the upper substrate and the lower substrate. The unit cell region includes a plurality of first particles exhibiting a first color, a plurality of second particles exhibiting a second color, a plurality of third particles exhibiting a third color, and a plurality of fourth particles exhibiting a fourth color, the first, second, third, and fourth particles being dispersed in a fluid.