Datasheet, 572 KB PDF, for the PE12864ERF-001-HC1 LCD module. Its 12864 group refers to a 128 x 64 dot graphic matrix, and the ERF and HC1 codes identify a particular option set that may not share pinout or ratings with other 12864 parts. Inside you would normally find dimensions, pin descriptions, absolute maximum ratings, electrical characteristics and timing charts. Use it during repair to confirm supply voltages and signal lines at the module connector, and compare the printed part number on the panel beforehand.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @acodis_lcd_datasheets_EDID. Enginerys does not host this file.
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