Explanation
Displays: This is the correct plural form. It follows the general Dutch rule for forming the plural of English loanwords that end in a consonant.
Display’s: This is not correct in standard Dutch. The apostrophe is not used for the plural of words that end in a consonant.
More Examples
Auto: “Er stonden veel nieuwe auto’s op de parkeerplaats.”
Here, the apostrophe is used because the word “auto” ends in a vowel.
Laptop: “In de winkel stonden verschillende laptops op de toonbank.”
Here, no apostrophe is used because “laptop” ends in a consonant.
Video: “Ze hebben veel video’s opgenomen tijdens hun vakantie.”
Here, the apostrophe is used because “video” ends in a vowel.
In the case of “display,” the same rule applies as for “laptop”: no apostrophe is needed for the plural form. Thus, “displays” is correct.