PS12864LRS-ENN-B-02 LCD module datasheet in PDF, 180 KB, with 02 likely indicating the document revision. Option letters in the code define build details such as backlight and temperature grade. Typical content covers the pin table, mechanical outline, electrical characteristics and interface timing. Use it when diagnosing a blank or faded display to confirm supply, contrast and backlight voltages at the connector, and to source a replacement; verify the module label code matches this sheet first.
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.