Component datasheet in PDF form for the V16C6448AF device, about 474 KB. The name gives only the part number with its AF suffix, and the manufacturer and function are not stated, so read the cover page for both. Datasheets like this give pin assignments, package outlines, electrical limits and timing tables, which help when checking a suspect chip, finding substitutes or tracing signals on a board. Compare the full marking on the IC, including any suffix, with the ordering information before using the values.
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.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.