Datasheet in PDF form for the PG160160BRF-CNN-H LCD module, a graphic display whose 160160 digits conventionally indicate a 160 by 160 dot matrix. The suffix letters encode options such as backlight, polarizer and temperature range, so the exact variant matters. Sheets like this usually cover pin assignment, supply voltages, timing and mechanical outline, which helps when tracing a dead display, checking contrast bias or sourcing a replacement. Compare the full part code on the module label before trusting the pinout.
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.