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:
Jul. 21, 2026
Filed:
Jan. 17, 2022
Lg Electronics Inc., Seoul, KR;
Soobeom Lee, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
The present invention is applicable to the display apparatus-related technical field, and relates to, for example, a rotating display apparatus using a light-emitting diode (LED) which is a semiconductor light-emitting device. The present invention provides the rotating display apparatus comprising: a fixing portion including a motor; a rotating portion located on the fixing portion and rotated by the motor; a light source module including a light-emitting element array coupled to the rotating portion and displaying an image by using an afterimage caused by the rotation of the rotating portion; and an encoder positioned between the fixing portion and the rotating portion to synchronize an image displayed by the light-emitting element array at a predetermined position when the rotating portion rotates, wherein the encoder comprises: a light-emitting portion continuously emitting light; a light-receiving portion receiving light emitted from the light-emitting portion through at least two paths; and a disk-shaped scaler disposed between the light-emitting portion and the light-receiving portion and having a plurality of slits formed along the circumferential direction.