A component datasheet. Shared as “ED156A4KME_15_6_oled_EverDisplay_Optronics_Shanghai_Limited.pdf” — a .pdf file, 1018 KB.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)