Patent ID: 11958280
Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  H  G | IPC B  G

Claim 7:
8. A method of fabricating a stretchable substrate for electronic device, comprising:
forming an elastomer polymer layer on a base substrate;
forming a plurality of recesses partially extending into the elastomer polymer layer;
subsequent to forming the plurality of recesses, selectively stiffening the elastomer polymer layer in a plurality of defined regions of the elastomer polymer layer corresponding to the plurality of recesses, thereby forming a modified elastomer polymer layer comprising a plurality of stiffened portions respectively in a plurality of stiffened regions spaced apart by one or more elastomeric portions in one or more elastomeric regions, the plurality of stiffened portions having a Young's modulus greater than a Young's modulus of the one or more elastomeric portions;
separating the modified elastomer polymer layer from the base substrate;
stretching the modified elastomer polymer layer to form a stretched modified elastomer polymer layer; and
transferring the stretched modified elastomer polymer layer to an intermediate base substrate.