CJK Unified Ideographs (Unicode block)
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Article ImagesCJK Unified Ideographs is a Unicode block containing the most common CJK ideographs used in modern Chinese, Japanese, Korean and Vietnamese characters. When contrasted with other blocks containing CJK Unified Ideographs, it is also referred to as the Unified Repertoire and Ordering (URO).[3]
CJK Unified Ideographs | |
---|---|
Range | U+4E00..U+9FFF (20,992 code points) |
Plane | BMP |
Scripts | Han |
Assigned | 20,992 code points |
Unused | 0 reserved code points |
Unicode version history | |
1.0.1 (1992) | 20,902 (+20,902) |
4.1 (2005) | 20,924 (+22) |
5.1 (2008) | 20,932 (+8) |
5.2 (2009) | 20,940 (+8) |
6.1 (2012) | 20,941 (+1) |
8.0 (2015) | 20,950 (+9) |
10.0 (2017) | 20,971 (+21) |
11.0 (2018) | 20,976 (+5) |
13.0 (2020) | 20,989 (+13) |
14.0 (2021) | 20,992 (+3) |
Unicode documentation | |
Code chart ∣ Web page | |
Note: [1][2] |
The block has hundreds of variation sequences defined for standardized variants.[4]
It also has tens of thousands of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD).[5][6] These sequences specify the desired glyph variant for a given Unicode character.
The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Unified Ideographs block:
- ^ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
- ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
- ^ Lunde, Ken (2012-09-16). "URO". CJK Type Blog. Adobe Inc.
- ^ "Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium.
- ^ "Ideographic Variation Database". Unicode Consortium.
- ^ "UTS #37, Unicode Ideographic Variation Database". Unicode Consortium.