Quantum-dot　(QD)　color　conversion　(QDCC)　has　the　inherent　advantages　of　high　color　purity　and　adjustable　spectral　peak,　and　spectral　symmetry,　which　is　favorable　to　healthy　displays.　In　this　paper,　a　theoretical　design　for　QDCC　white　balance　in　healthy　displays　is　proposed　to　achieve　both　high　light　conversion　efficiency　(LCE)　and　low　blue　light　intensity　(BLI).　Based　on　the　defined　logical　channels　for　QDCC　model　and　the　optimal　criterion　of　the　QD＇s　dosage　factor　(DoF),　the　key　design　parameters　of　the　red　and　green　QDCC　sub-pixels　are　first　obtained,　including　the　QD　concentration　and　the　color　conversion　layer　thickness.　Then,　according　to　the　requirements　of　three-primary-color　flux　for　white-balanced　display,　the　luminous　area　of　three-primary-color　sub-pixels　can　be　adjusted　to　achieve　the　white　balance　of　the　healthy　display.　Finally,　by　combining　the　above　theoretical　analysis　and　design　approach,　a　theoretical　formula　is　recommended　for　white-balanced　healthy　displays　with　high　luminous　efficiency　and　low　BLI.　The　white　balance　method　is　verified　by　theoretical　derivation　and　optical　simulation.　Results　show　that　the　method　can　not　only　guide　the　structural　design　of　the　QDCC　from　the　theoretical　level　but　also　ensure　high　LCE　and　low　BLI　for　three-primary-color　sub-pixels.　The　target　white　balance　can　be　well　achieved　by　adjusting　the　area　ratio　of　three-primary-color　sub-pixels　to　3.94:5.06:1,　and　the　color　coordinates　and　the　color　temperature　are　(0.313,　0.3206)　and　6552　K,　respectively.　This　study　provides　a　useful　exploration　of　QDCC　white　balance　design　for　next-generation　healthy　displays　with　high　conversion　efficiency　and　low　BLI.　©　2022　Society　for　Information　Display.