Invention Grant
US08018427B2 Illumination device and liquid crystal display device provided therewith 有权
照明装置和与此相关的液晶显示装置

  • Patent Title: Illumination device and liquid crystal display device provided therewith
  • Patent Title (中): 照明装置和与此相关的液晶显示装置
  • Application No.: US12293635
    Application Date: 2006-11-02
  • Publication No.: US08018427B2
    Publication Date: 2011-09-13
  • Inventor: Tetsuya Hamada
  • Applicant: Tetsuya Hamada
  • Applicant Address: JP Osaka
  • Assignee: Sharp Kabushiki Kaisha
  • Current Assignee: Sharp Kabushiki Kaisha
  • Current Assignee Address: JP Osaka
  • Agency: Keating & Bennett, LLP
  • Priority: JP2006-125093 20060428
  • International Application: PCT/JP2006/321939 WO 20061102
  • International Announcement: WO2007/125623 WO 20071108
  • Main IPC: G09G3/36
  • IPC: G09G3/36 G09G3/32
Illumination device and liquid crystal display device provided therewith
Abstract:
An illumination device includes a light source section with white LEDs on a side of a light guide plate. The white LED includes a first white LED and a second white LED, and they emit light of different chromaticities. In a chromaticity diagram, a white color area is divided into two subareas by a dividing line passing through a target chromaticity; light emitted by the first white LED falls within a first subarea, and light emitted by the second white LED falls within a second subarea. By individually controlling the light emission of the first white LED and the second white LED, it is possible to emanate a desired white light from the light guide plate.
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