I want to know the "internal parts of an LCD"... but I can't find any from the results.
https://youtu.be/dZZynJLmTn8?t=2m40s @2:40s
"....according to the ASCII"
does that mean ASCII is stored somewhere in the LCD (e.g. ASCII stored in EEPROM) ?
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\$\begingroup\$ do you know what ASCII means? \$\endgroup\$ – jsotola Jul 23 '18 at 4:48
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Most displays of this type use the Hitachi HD44780 LCD controller, or something compatible. The HD44780 stores characters graphics in a 9920-bit mask ROM. (This appears near the bottom of the block diagram on page 3 of the datasheet.)
Some HD44780-compatible graphical LCDs (often sold as the "12864") will read a character table from an EEPROM attached to the back of the LCD. This is necessary because these LCDs support a Chinese font which is too large to store in mask ROM. I've been unable to find an English datasheet for the controller(s?) used on these displays, though.
answered Jul 23 '18 at 4:50
