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Invention Grant
US08258718B2 Lighting device and display device 有权
照明装置和显示装置

  • Patent Title: Lighting device and display device
  • Patent Title (中): 照明装置和显示装置
  • Application No.: US12864008
    Application Date: 2008-10-03
  • Publication No.: US08258718B2
    Publication Date: 2012-09-04
  • Inventor: Masahiro Arai
  • Applicant: Masahiro Arai
  • Applicant Address: JP Osaka
  • Assignee: Sharp Kabushiki Kaisha
  • Current Assignee: Sharp Kabushiki Kaisha
  • Current Assignee Address: JP Osaka
  • Agency: Keating & Bennett, LLP
  • Priority: JP2008-029196 20080208
  • International Application: PCT/JP2008/068065 WO 20081003
  • International Announcement: WO2009/098800 WO 20090813
  • Main IPC: H05B37/02
  • IPC: H05B37/02
Lighting device and display device
Abstract:
A lighting device (8) including a cold-cathode fluorescent tube (light source) (9) includes an inverter circuit (16) connected to the cold-cathode fluorescent tube (9) and configured so as to driving the cold-cathode fluorescent tube (9), using PWM dimming. The inverter circuit (16) drives the cold-cathode fluorescent tube (9) while a dimming signal in the PWM dimming and a driving signal for driving the cold-cathode fluorescent tube (9) are synchronized.
Abstract(Chinese):

包括冷阴极荧光管（光源）（9）的照明装置（8）包括连接到冷阴极荧光管（9）的逆变器电路（16），并被构造成驱动冷阴极荧光管 （9），采用PWM调光。 逆变器电路（16）驱动冷阴极荧光管（9），同时PWM调光中的调光信号和用于驱动冷阴极荧光管（9）的驱动信号同步。

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