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.

Date of Patent:
Jan. 13, 2026

Filed:

Sep. 23, 2024
Applicant:

Sapien Semiconductors Inc., Gyeonggi-do, KR;

Inventors:

Sung Ho Hwang, Gyeonggi-do, KR;

Jin Woong Jang, Gyeonggi-do, KR;

Hye Min Bae, Gyeonggi-do, KR;

Dae Young Jung, Gyeonggi-do, KR;

Vie Tan Vo, Gyeonggi-do, KR;

Assignee:

SAPIEN SEMICONDUCTORS INC., Gyeonggi-do, KR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G09G 3/20 (2006.01); G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G09G 3/2096 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01);
Abstract

Provided is a pixel driving circuit connected to a light-emitting element, the pixel driving circuit including a first memory storing a bit value of bit data associated with image data of a single frame including a plurality of subframes, a controller configured to generate a pulse width modulation (PWM) signal and a control signal for controlling light emission or non-light emission of the light-emitting element, based on data stored in the first memory, a driving unit configured to supply power to the light-emitting element based on the PWM signal and the control signal, received from the controller, and a bias circuit configured to supply bias power to the driving unit based on the control signal received from the controller.


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