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:
Mar. 18, 2025

Filed:

Mar. 14, 2024
Applicant:

Lapis Technology Co., Ltd., Yokohama, JP;

Inventor:

Hiroshi Tsuchi, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); H03K 19/003 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2092 (2013.01); H03K 19/00361 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01); G09G 2330/06 (2013.01);
Abstract

The disclosure includes: a first transistor, supplying a first power voltage to the output terminal when becoming ON according to a voltage of the input signal received by a gate; a second transistor, supplying a second power voltage to the output terminal in a case of becoming ON in accordance with the voltage of the input signal received by a gate; and an output control part, transitioning to ON by changing a voltage of the gate of the transistor in OFF between the first and second transistors at a change speed based on a current value of a bias current generated by a bias part when the voltage of the input signal changes. According to a voltage change of the input signal, the bias part sets a bias current value to a first value throughout a predetermined period, and switches to a second, lower value in other periods.


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