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. 18, 2025
Filed:
Oct. 22, 2020
Sapien Semiconductors Inc., Ulsan, KR;
Jae Hoon Lee, Busan, KR;
Jin Woong Jang, Suwon-si, KR;
SAPIEN Semiconductors Inc., Gyeonggi-do, KR;
Abstract
Provided is a pixel driving circuit operatable in a low-definition mode and a high-definition mode using the same pixel memory, and a display device including the same. The pixel driving circuit may include a driving line configured to connect between an emitter and a positive power source or between the emitter and a negative power source, a first transistor connected in series on the driving line and turned on in response to a pulse width modulation (PWM) signal, a first driving unit and a second driving unit that are connected in series on the driving line and electrically connected in parallel to each other, and a second transistor connected between a reference voltage source, which is connected to apply a reference voltage to the first driving unit and the second driving unit, and the second driving unit and turned on or off in response to a display mode selection signal.