Datasheet in PDF for the PW084XS2 module, about 422 KB. The PW-series numbering is used by PVI (Prime View International) for small TFT LCD panels, with the digits usually reflecting diagonal size, so this would be an 8.4 inch class panel. The document should list interface pinout, supply voltages, backlight data, timing and mechanical drawings. Technicians use it when checking panel power or sourcing a replacement. Compare the label on the rear of the panel with this exact code before trusting pin assignments.
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.