Displays integrated in other products can be considered as components or sub-assemblies, and therefore excluded from the scope of the Regulation if their environmental performance cannot be assessed independently as stated in in point 2 of Article 2 of Directive 2009/125/EU. It is irrelevant whether a display is commercialised as 'component or sub-assembly', 'spare part', 'display tile' or 'integrated display'.
Displays provided as spare parts are therefore exempted if for example they do not have a suitable interface for data and power which can be used by authorities for the purpose of testing or other characteristics that would prevent assessing their compliance independently of the product.
Disclaimer: Please note that the European Commission cannot provide a legally binding interpretation of the EU legislation, as this is the sole competence of the European Court of Justice. Any remarks from the European Commission services are without prejudice to the position the Commission might take should related cases arise in a procedure before the Court of Justice.