Abstract: The invention relates to a ?LED light-emitting and display device with single-ended electrical contact and single-ended carrier injection, and a manufacturing method of the ?LED light-emitting and display device. The ?LED light-emitting and display device comprises more than one pixel unit, and each pixel unit sequentially comprises a lower pixel electrode, ?LED chips, an insulating layer, and an upper pixel electrode from bottom to top, wherein the ?LED chips directly contact with the lower pixel electrode, external carriers are injected into the ?LED chips through the lower pixel electrode, the insulating layer prevents the external carriers from being injected into the ?LED chips through the upper pixel electrode, and the ?LED chips are lit by an alternating electric field applied between the upper pixel electrode and the lower pixel electrode. The invention avoids the complicated bonding process, and is expected to improve the market competitiveness of the ?LED light-emitting and display device.

Abstract: The present invention relates to a ?LED light-emitting and display device without electrical contact, external carrier injection and mass transfer and a preparation method thereof. The ?LED light-emitting and display device includes one or more light-emitting pixels, and each light-emitting pixel includes a pixel lower electrode, a lower insulation layer, a ?LED chip, an upper insulation layer and a pixel upper electrode from bottom to top, wherein the upper insulation layer and the lower insulation layer prevent the ?LED chip from being in direct electrical contact with the pixel lower electrode and the pixel upper electrode, and the ?LED chip is lit by an alternating electric field through electromagnetic coupling.