RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS Lenovo D22-20, 54.6 cm (21.5"), 1920 x 1080 ピクセル, フルHD, LED, 5 ms, ブラック Lenovo D22-20. ディスプレイ 対角表示領域: 54.6 cm (21.5"), ディスプレイ解像度: 1920 x 1080 ピクセル, HDタイプ: フルHD, ディスプレー技術: LED, 表示面: マット, レスポンスタイム: 5 ms, アスペクト比（初期設定時）: 16:9, 視野角水平: 90°, 視野角垂直: 65°. VESAマウント. プロダクトカラー: ブラック