Due　to　the　hysteresis　characteristics　of　electro　wetting　display,　the　luminance　of　the　same　driving　voltage　is　different　in　the　voltage　rising　stage　and　the　voltage　falling　stage.　In　this　paper,　a　gray　distortion　correction　method　for　hysteresis　characteristics　of　electro　wetting　display　is　proposed.　Firstly,　by　measuring　the　influence　of　hysteresis　characteristics　on　the　photoelectric　curve　under　different　voltage　ranges,　the　hysteresis　curve　model　of　electro　wetting　display　was　established　by　fitting　the　measured　data.　Based　on　this,　the　driving　voltage　mapping　relationship　of　the　same　gray　scale　in　different　scenes　is　constructed,　and　finally　the　effect　of　reducing　the　luminance　difference　is　achieved　to　reduce　the　gray　distortion.　Experimental　results　show　that　the　proposed　scheme　can　effectively　reduce　the　degree　of　distortion,　and　the　maximum　gray-scale　relative　luminance　difference　is　reduced　from　20.07%　to　0.01%,　and　the　reduction　ratio　is99.93%.　The　relative　luminance　difference　was　reduced　by　10.84%on　average,　and　the　reduction　ratio　was　80.98%.　The　oil　aperture　ratio　distortion　is　reduced　from　5.67%　to　0.13%,　and　the　reduction　ratio　is　97.7%.　©　2024　John　Wiley　and　Sons　Inc.　All　rights　reserved.