Stable　electroluminescence　from　micro-pixelated　light-emitting　diode　(mu　LED)　occurs　when　electrons　and　holes　are　continuously　injected　from　external　electrodes.　Different　from　the　general　recognition,　in　this　work,　mu　LED　works　in　an　operation　mode,　namely,　non-electrical　contact　and　non-carrier　injection　mode,　and　can　be　＇wirelessly＇　lit　up　without　external　charge　injection,　which　is　different　from　the　general　recognition.　Inherent　holes　and　electrons　in　mu　LEDs　can　provide　sufficient　carriers　for　radiative　recombination　under　alternating-current　electric　field.　A　possible　model　related　to　the　diffusion　of　majority　carrier　and　the　drift　of　minority　carrier　in　mu　LED　was　proposed,　which　is　further　confirmed　by　the　employment　of　a　＇carrier　pump＇.　Finally,　the　intrinsic　characteristics　of　the　device-in-capacitor,　namely,　self-protection　against　electrical　breakdown,　were　discussed.　This　work　demonstrates　a　new　device　configuration　and　an　alternative　operating　mode　for　mu　LED　and　provides　a　research　manner　to　obtain　advanced　mu　LED-based　technology.