▎ 摘　　要

NOVELTY - Method for patterning a liquid crystal elastomer comprises liquid crystal elastomer includes dynamic covalent bonds and has a cross-linked network structure, and the method involves orienting at least part of the molecular chains in the cross-linked network structure of the liquid crystal elastomer along a predetermined direction. Applying electrothermal driving or photothermal driving to the liquid crystal elastomer, wherein the electrothermal driving mode is to place a polyimide electrothermal film on the liquid crystal elastomer, the photothermal driving method is to dope the photothermal response material in the molecular chain of the liquid crystal elastomer. Heating the pre-oriented molecular chains of the liquid crystal elastomer through the electrical processing control of the polyimide electrothermal film or the light processing control of the photothermal response material to exchange the dynamic covalent bond. USE - Method for patterning a liquid crystal elastomer used for touch display device (Claimed). ADVANTAGE - Method for patterning a liquid crystal elastomer realize the mechanized processing and the batch production preparation of the three-dimensional dynamic structures of the liquid crystal elastomers with different requirements and various complex patterns. This application makes the liquid crystal elastomer have various complicated patterns through the regulation of electricity processing parameter, light processing parameter and heating temperature and heating time. The touch display device is simple in structure, simplified in preparation process and low in production cost, and can effectively promote marketization application of the touch display technology. The touch display device is flexible in preparation method and realize single-point control. DETAILED DESCRIPTION - Method for patterning a liquid crystal elastomer comprises liquid crystal elastomer includes dynamic covalent bonds and has a cross-linked network structure, and the method involves orienting at least part of the molecular chains in the cross-linked network structure of the liquid crystal elastomer along a predetermined direction. Applying electrothermal driving or photothermal driving to the liquid crystal elastomer, wherein the electrothermal driving mode is to place a polyimide electrothermal film on the liquid crystal elastomer, the photothermal driving method is to dope the photothermal response material in the molecular chain of the liquid crystal elastomer. Heating the pre-oriented molecular chains of the liquid crystal elastomer through the electrical processing control of the polyimide electrothermal film or the light processing control of the photothermal response material to exchange the dynamic covalent bond, a new cross-linked network structure is formed, thereby obtaining the liquid crystal elastomer with the desired pattern orientation. An INDEPENDENT CLAIM is included for preparation method of a touch display device involves providing a liquid crystal elastomer comprising a cross-linked network structure of dynamic covalent bonds, the liquid crystal elastomer having monodomain protrusions. Applying electrothermal driving or photothermal driving to the protrusions, the electrothermal driving mode is to place a polyimide electrothermal film under the protrusions, and the photothermal driving mode is to respond to photothermal material is doped in the protrusions. Heating the bulge to make the dynamic covalent bond in the bulge exchange reaction to form a new cross-linked network structure and fix the orientation to form a bulge with a fixed orientation. Adjusting the stretching parameters of each protrusion through the electrical processing control of the polyimide electrothermal film or the optical processing control of the photothermal response material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a polyimide electrothermal film partially oriented to process a liquid crystal elastomer film. (Drawing includes non-English language text).