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:
Jan. 06, 2026
Filed:
Jul. 27, 2022
Beijing Boe Optoelectronics Technology Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Qichang An, Beijing, CN;
Yifan Wu, Beijing, CN;
Yuelei Xiao, Beijing, CN;
Yue Li, Beijing, CN;
Yulin Feng, Beijing, CN;
Huiying Li, Beijing, CN;
Biqi Li, Beijing, CN;
Beijing BOE Optoelectronics Technology Co., Ltd., Beijing, CN;
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
Abstract
A functional substrate includes a first dielectric substrate, which includes a first surface and a second surface oppositely arranged along a thickness direction of the first dielectric substrate; the first dielectric substrate is provided with a first connection hole at least penetrating through the first surface; a first connection electrode is arranged in the first connection hole, which includes a first sub-hole and a second sub-hole sequentially arranged along a direction away from the second surface and communicated with each other; the second sub-hole penetrates through the first surface; an opening width of the second sub-hole is monotonically increased in the direction away from the second surface, and a minimum opening width of the second sub-hole is not smaller than a maximum opening width of the first sub-hole; the first and second sub-holes form a corner at a position where the first sub-hole and the second sub-hole are connected.