Invention Grant
- Patent Title: Backlight control circuit having frequency setting circuit and method for controlling lighting of a lamp
- Patent Title (中): 背光控制电路具有频率设定电路和控制灯的照明的方法
-
Application No.: US12214135Application Date: 2008-06-16
-
Publication No.: US07948186B2Publication Date: 2011-05-24
- Inventor: Shun-Ming Huang
- Applicant: Shun-Ming Huang
- Applicant Address: CN Shenzhen, Guangdong Province TW Miao-Li County
- Assignee: Innocom Technology (Shenzhen) Co., Ltd.,Chimei Innolux Corporation
- Current Assignee: Innocom Technology (Shenzhen) Co., Ltd.,Chimei Innolux Corporation
- Current Assignee Address: CN Shenzhen, Guangdong Province TW Miao-Li County
- Agent Wei Te Chung
- Priority: CN200710075052 20070615
- Main IPC: H01J13/32
- IPC: H01J13/32
Abstract:
An exemplary backlight control circuit includes an inverter, a pulse width modulation (PWM) circuit, and a frequency setting circuit. The inverter is configured to provide an alternating current voltage to a lamp. The PWM circuit is configured to provide a pulse control signal to the inverter. The frequency setting circuit is configured to regulate a frequency of the pulse control signal provided by the PWM circuit according to a temperature of the lamp.
Public/Granted literature
- US20080309247A1 Backlight control circuit having frequency setting circuit and method for controlling lighting of a lamp Public/Granted day:2008-12-18
Information query
