The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2025
Filed:
Jan. 25, 2024
Wuhan Tianma Microelectronics Co., Ltd., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Xuejing Xiao, Wuhan, CN;
Zhenzhen Xie, Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Abstract
Provided is a circuit board and an electronic device thereof. The circuit board includes: a substrate; an insulating ink layer disposed on the substrate; a component disposed on a side of the insulating ink layer facing away from the substrate, where the component is electrically connected to the substrate through a window opening area on the substrate; and an encapsulation layer disposed on a side of the component facing away from the substrate. The insulating ink layer includes a first hydrochromic material, and in a case where humidity exceeds a first humidity threshold, the first hydrochromic material changes from a first color to a second color.