← All terms

Ideographic Characters

Also known as: Ideographs, Logograms, CJK Characters, Han Characters

Ideographic characters are written symbols that represent a word, morpheme, or concept rather than an individual sound, as used in Chinese (Hanzi), Japanese (Kanji), and historically Korean (Hanja). Because a single writing system can include thousands of distinct characters — roughly 2,000 in common Japanese use and 5,000 or more in Chinese — displaying varied typography is technically harder than for alphabetic scripts, so designers often render styled ideographic text as bitmap images. This has direct accessibility consequences: images of text bypass the accessibility tree, breaking screen reader access, translation tools, user-controlled font sizing, and automatic text-extraction algorithms that rely on having actual text in the DOM. Accessibility research on CJK-language content frequently finds far lower accessibility rates than equivalent English content for precisely this reason.

Category: Language · Multilingual Accessibility · Web Accessibility

Related: Alternative Text · Optical Character Recognition · Screen Reader · Multilingual Accessibility

Sources