High‐resolution　(HR)　displays　are　in　much　demand　as　metaverse　makes　near‐eye　displays　the　most　important　equipment　in　recent　years.　Based　on　wave　optics,　a　microscale　optical　crosstalk　model　for　HR　display　devices　is　proposed.　It　is　indicated　that　the　pixel　pattern　will　be　distorted　over　long‐distance　transmission　in　light‐emitting　devices　with　inner　periodic　microstructure,　and　the　optical　distortion　is　related　to　the　size　of　pixels　and　the　distance　from　the　emitting　layer　to　the　outlet.　A　bottom　emissive　HR　red　quantum　dot　light‐emitting　diode　(QLED) array　is　introduced　to　confirm　the　model　and　a　top　emission　scheme　is　provided　to　effectively　reduce　the　transmission　distance　and　suppress　the　pixel　distortion.　Optical‐crosstalk‐free　pixels　are　finally　achieved　by　adopting　the　optimized　top‐emission　cathode　thickness　of　30 nm.　This　study　provides　a　direction　for　realizing　high‐quality　and　high‐resolution　micro‐displays.