Double-layer cholesteric liquid crystal display and its manufacturing method

A double-layer cholesteric liquid crystal display, comprising:

• three transparent substrates arranged from bottom to top, including a first transparent substrate, a second transparent substrate, and a third transparent substrate;
• two opposing electrode layers, wherein one of the opposing electrode layers includes a first upper electrode layer and a first lower electrode layer, and the other opposing electrode layer includes a second upper electrode layer and a second lower electrode layer, wherein the first lower electrode layer is disposed on the upper surface of the first transparent substrate, the first upper electrode layer is disposed on the lower surface of the second transparent substrate, the second lower electrode layer is disposed on the upper surface of the second transparent substrate, and the second upper electrode layer is disposed on the lower surface of the third transparent substrate;
• two cholesteric liquid crystal layers, including a first cholesteric liquid crystal layer and a second cholesteric liquid crystal layer, the cholesteric liquid crystal layers having mutually opposite optical rotary properties, wherein the first cholesteric liquid crystal layer is disposed between the first upper electrode layer and the first lower electrode layer, and the second cholesteric liquid crystal layer is disposed between the second upper electrode layer and the second lower electrode layer, wherein the first cholesteric liquid crystal layer exhibits a first color light, the second cholesteric liquid crystal layer exhibits a second color light;
• a first light-absorbing layer, disposed on the bottom surface of the first transparent substrate;
• and
• a second light-absorbing layer, said second light-absorbing layer being located between the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer, and configured to absorb light at the wavelength of the second color light.