Abstract: Disclosed are a thin film transistor and a manufacturing method therefor, a displaying base plate and a displaying apparatus. The thin film transistor includes an active layer, a first insulating layer and a gate layer which are disposed in stack, wherein the active layer includes a source contact area, a drain contact area, and a channel area connecting the source contact area and the drain contact area; the channel area includes a first channel area, a first resistance area and a second channel area sequentially disposed in a first direction; the gate layer includes a first gate and a second gate which are separately disposed; an orthographic projection of the first gate on a plane where the active layer is located covers the first channel area; and an orthographic projection of the second gate on a plane where the active layer is located covers the second channel area.

Abstract: A displaying base plate and a manufacturing method thereof, and a displaying device. The displaying base plate includes a substrate, and a first electrode layer disposed on one side of the substrate, wherein the first electrode layer includes a first electrode pattern; a first planarization layer disposed on one side of the first electrode layer that is away from the substrate, wherein the first planarization layer is provided with a through hole, and the through hole penetrates the first planarization layer, to expose the first electrode pattern; and a second electrode layer, a second planarization layer and a third electrode layer that are disposed in stack on one side of the first planarization layer that is away from the substrate, wherein the second electrode layer is disposed closer to the substrate, the second electrode layer is connected to the first electrode pattern and the third electrode layer.

Abstract: A natural jewelry authenticity identification method comprises: scanning the whole appearance of each jewel by three-dimensional microscopic scanning and completely recording appearance characteristics of the jewel; a three-dimensional imaging technique is used to generate a three-dimensional entity image of the jewel, and a digest algorithm is used to compress three-dimensional entity image information about the jewel into a unique digest code, wherein the three-dimensional entity image and the digest code are published as publishable archive information; and if a receiver is a dealer, the same method is adopted to generate a digest code of the natural jewel, and the digest code is compared with the published digest code; and if the receiver is an individual buyer, after the natural jewel is received, the actual object is magnified and compared with the published three-dimensional entity image, and if the comparison is matched, the natural jewel is identified as authentic.