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:
Feb. 11, 2025
Filed:
Oct. 12, 2023
Lg Display Co., Ltd., Seoul, KR;
Kyung Mo Son, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A display apparatus including a light emitting device and a pixel driving circuit is disclosed. The pixel driving circuit supplies drive current corresponding to a data signal. The pixel driving circuit includes a driving thin film transistor and switching thin film transistors. The switching thin film transistors include a sampling thin film transistor electrically connected between a driving gate electrode and a driving source electrode of the driving thin film transistor. A sampling semiconductor pattern of the sampling thin film transistor is disposed between a sampling light shielding pattern and a sampling gate electrode of the sampling thin film transistor. A cross-section of at least one of the sampling light shielding pattern or the sampling gate electrode has a concave shape with reference to the sampling semiconductor pattern. A variation in characteristics of the sampling thin film transistor by light emitted from the light emitting device is prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile