Invention Grant
- Patent Title: Driving circuit of LED for liquid crystal backlight, control circuit thereof, and electronic device
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Application No.: US15429686Application Date: 2017-02-10
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Publication No.: US10467967B2Publication Date: 2019-11-05
- Inventor: Masao Yonemaru , Kenichi Fukumoto
- Applicant: ROHM CO., LTD.
- Applicant Address: JP Kyoto
- Assignee: ROHM CO., LTD.
- Current Assignee: ROHM CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Cantor Colburn LLP
- Priority: JP2016-024616 20160212
- Main IPC: G09G3/34
- IPC: G09G3/34 ; H05B33/08
Abstract:
A control circuit of a driving circuit of a backlight LED is provided. The driving circuit includes a DC/DC converter that supplies a driving current to the backlight LED. The control circuit includes a pulse signal generating circuit configured to switch between a quasi-resonant mode and a continuous current mode to generate a pulse signal based on a selected mode and a driver configured to drive the DC/DC converter based on the pulse signal.
Public/Granted literature
- US20170236472A1 DRIVING CIRCUIT OF LED FOR LIQUID CRYSTAL BACKLIGHT, CONTROL CIRCUIT THEREOF, AND ELECTRONIC DEVICE Public/Granted day:2017-08-17
Information query
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