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:
May. 16, 2022
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Kouichi Hashikaki, Kanagawa, JP;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
To reduce power consumption of a drive circuit for a display device. A drive circuit () for the display device includes a comparator (), a PWM signal generation unit (), and a drive unit (). The comparator () is a comparator that starts comparison between a count number of pulses in an input clock signal and input comparison data in synchronization with a start signal, and includes a shift register () that is configured by a plurality of flip-flops in which the clock signal is input to a clock terminal and that is cascade-connected and shifts the start signal, and a selection unit () that selects one of outputs of the plurality of flip-flops constituting the shift register according to the comparison data and outputs the shifted start signal as a result of the comparison. The PWM signal generation unit () generates a PWM signal according to the result of the comparison. The drive unit () drives a light emitting element () based on the generated PWM signal.