BRAILLE PATTERN DOTS-134578·U+28DD

Character Information

Code Point
U+28DD
HEX
28DD
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 A3 9D
11100010 10100011 10011101
UTF16 (big Endian)
28 DD
00101000 11011101
UTF16 (little Endian)
DD 28
11011101 00101000
UTF32 (big Endian)
00 00 28 DD
00000000 00000000 00101000 11011101
UTF32 (little Endian)
DD 28 00 00
11011101 00101000 00000000 00000000
HTML Entity
⣝
URI Encoded
%E2%A3%9D

Description

U+28DD (Braille Pattern Dots-134578) is a character in the Unicode standard used to represent Braille patterns digitally. In digital text, this character typically serves as a visual representation of a specific Braille cell pattern used for tactile communication among visually impaired individuals. The Braille system was developed by Louis Braille in 1821 and has since become an essential tool for reading and writing for millions of people worldwide who are blind or have low vision. Each Braille character is represented by a unique arrangement of six dot positions, corresponding to the positions on a standard six-dot Braille cell. The pattern "134578" indicates the specific arrangement of dots in the cell: 1 (raised) and 3 (raised), 4 (raised) and 5 (raised), and 7 (raised) and 8 (raised). This character plays a crucial role in digital communication and accessibility, ensuring that Braille content can be accurately represented across various platforms and devices.

How to type the symbol on Windows

Hold Alt and type 10461 on the numpad. Or use Character Map.

  1. Step 1: Determine the UTF-8 encoding bit layout

    The character has the Unicode code point U+28DD. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of 0x0800 to 0xffff.

    Therefore we know that the UTF-8 encoding will be done over 16 bits within the final 24 bits and that it will have the format: 1110xxxx 10xxxxxx 10xxxxxx
    Where the x are the payload bits.

    UTF-8 Encoding bit layout by codepoint range
    Codepoint RangeBytesBit patternPayload length
    U+0000 - U+007F10xxxxxxx7 bits
    U+0080 - U+07FF2110xxxxx 10xxxxxx11 bits
    U+0800 - U+FFFF31110xxxx 10xxxxxx 10xxxxxx16 bits
    U+10000 - U+10FFFF411110xxx 10xxxxxx 10xxxxxx 10xxxxxx21 bits
  2. Step 2: Obtain the payload bits:

    Convert the hexadecimal code point U+28DD to binary: 00101000 11011101. Those are the payload bits.

  3. Step 3: Fill in the bits to match the bit pattern:

    Obtain the final bytes by arranging the paylod bits to match the bit layout:
    11100010 10100011 10011101