Hi @ricecake
If the laptop is a HP Pavilion x360 14m-ba114dx as selected by you here's the [http://h10032.www1.hp.com/ctg/Manual/c06172090.pdf|maintenance and service guide] taken from this support [https://support.hp.com/us-en/product/hp-pavilion-14m-ba100-x360-convertible-pc/16842288/model/18021534/manuals|webpage] for the laptop.
Go to p.64 to view the procedure to remove the display assembly.
Installing the display is just the reverse of the removal procedure.