▎ 摘　　要

NOVELTY - Light valve, comprises a first transparent electrode formed on the first transparent substrate. A second transparent electrode is formed on the second transparent substrate. The first transparent electrode and the second transparent electrode are set oppositely. A control light layer is set between the first transparent electrode and the second transparent electrode. The light control layer comprises a polymer matrix. The suspending medium liquid drops are distributed in the polymer matrix; solid control light particles are distributed in the suspension medium liquid drop. The polymer matrix is composed of siloxane copolymer. The siloxane copolymer is composed of siloxane oligomers and crosslinkable silane coupling agent monomers in acid catalyst and reaction control which can be obtained through sufficient premixing and copolymerization under the action of the agent, and no organic solvent is used in the synthesis process. USE - Used as light valve. ADVANTAGE - The inventive light valve has excellent thermal aging resistance. It exhibits better thermal stability under the harsh comparison condition, at the same time, because there is no solvent-free synthesis condition. It also avoids the problem of organic solvent in the synthetic production process and so a series, and satisfies wide application requirement. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: dimming glass assembly, comprising a first glass plate and a second glass plate, and a light valve arranged between the first glass plate and the second glass plate; and method of improving thermal stability of a light valve comprising providing a light control layer matrix emulsion; coating the light control layer matrix emulsion on the first transparent electrode to form a light control layer wet film, covering the second transparent electrode on the wet film of the light control layer and performing crosslinking and curing on the wet film of the light control layer to obtain the light valve, where the matrix emulsion of the light control layer contains a polymer matrix precursor, dispersing with suspension medium droplets in the polymer matrix precursor, distributing solid light-controlling particles within the suspension medium droplets, where polymer matrix precursor is composed of at least one siloxane copolymer, the siloxane copolymer is composed of siloxane oligomers and crosslinkable silane coupling agent monomers in the acidic catalyst and Under the action of the reaction control agent, and it is obtained through sufficient premixing and copolymerization, and no organic solvent is used in the synthesis process.