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:
May. 19, 2026
Filed:
Mar. 11, 2025
Huayuan Semiconductor (Shenzhen) Limited Company, Shenzhen, CN;
Huayuan Semiconductor (Tianjin) Limited Company, Tianjin, CN;
Yujun Wang, Tianjin, CN;
Honglai Wang, Tianjin, CN;
Yufeng Zou, Tianjin, CN;
Xiang Xia, Shenzhen, CN;
Zhangyi Zhu, Tianjin, CN;
Huayuan semiconductor (shenzhen) limited company, Shenzhen, CN;
Huayuan semiconductor (tianjin) limited company, Tianjin, CN;
Abstract
A display system includes a data control chip, N cascaded modules, and N pull-up resistors. Each cascaded module includes M driver units connected in series and correspondingly controlled LED units. An input terminal of the first driver unit is coupled to an output terminal of the data control chip, an output terminal of an Mdriver unit is coupled to an input terminal of the data control chip, each driver unit is coupled to a first power supply voltage. Each driver unit is integrated with a CMOS output structure and an open-drain output structure. The data control chip is configured to control each driver unit in a corresponding cascaded module to be switched between the CMOS output structure and the open-drain output structure. Each pull-up resistor is corresponding to one cascaded module, and is coupled between an output terminal of the corresponding cascaded module and a second power supply voltage.