Invention Grant
- Patent Title: Driving circuit for a light-emitting diode backlight and method for driving the same
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Application No.: US17347802Application Date: 2021-06-15
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Publication No.: US11432386B2Publication Date: 2022-08-30
- Inventor: David Gamperl
- Applicant: Dialog Semiconductor (UK) Limited
- Applicant Address: GB London
- Assignee: Dialog Semiconductor (UK) Limited
- Current Assignee: Dialog Semiconductor (UK) Limited
- Current Assignee Address: GB London
- Agency: Saile Ackerman LLC
- Agent Stephen B. Ackerman
- Priority: EP16159637 20160310
- Main IPC: G09G3/34
- IPC: G09G3/34 ; H05B45/3725 ; H05B45/10 ; H05B45/46 ; H05B45/48 ; H05B45/37 ; G02F1/13357

Abstract:
A driving circuit and a method for a backlight using light-emitting diodes, LED, the backlight having a first and second segment is presented. A driving circuit for an LED backlight with a first and second segment has a first terminal, a second terminal for sensing a first signal, a third terminal for connecting to a first current generating unit for providing a first driving current, a first current regulation circuit, a fourth terminal for sensing a second signal, a fifth terminal for connecting to a second current generating unit, a second current regulation circuit for controlling the second current generating unit, and a control unit which is prepared to adjust the supply voltage and to adjust the first and/or second driving current in dependence on the first and the second signal by means of the first and/or the second current regulation circuits.
Public/Granted literature
- US20210315079A1 Driving Circuit for a Light-Emitting Diode Backlight and Method for Driving the Same Public/Granted day:2021-10-07
Information query
IPC分类: