Three-silver glass

The embodiment of the invention discloses three-silver glass. The three-silver glass comprises a glass substrate, and a first dielectric layer, a first seed layer, a first functional layer, a first protective layer, a second dielectric layer, a second seed layer, a second functional layer, a second protective layer, a third dielectric layer, a third seed layer, a third functional layer, a third protective layer and a fourth dielectric layer which are sequentially formed on the same side surface of the glass substrate, wherein the third dielectric layer comprises a third lower sub-dielectric layer, a third upper sub-dielectric layer and a third intermediate layer located between the third lower sub-dielectric layer and the third upper sub-dielectric layer, the third lower sub-dielectric layer is adjacent to the second protective layer, the third upper sub-dielectric layer is adjacent to the third seed layer, and the third intermediate layer contains a copper alloy. The optical performance of the three-silver g