• Patent Title: Lighting apparatus and projector
  • Application No.: US16489638
    Application Date: 2018-02-20
  • Publication No.: US10708558B2
    Publication Date: 2020-07-07
  • Inventor: Yoshihisa Sato
  • Applicant: SONY CORPORATION
  • Applicant Address: JP Tokyo
  • Assignee: SONY CORPORATION
  • Current Assignee: SONY CORPORATION
  • Current Assignee Address: JP Tokyo
  • Agency: Chip Law Group
  • Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2f17c130
  • International Application: PCT/JP2018/005861 WO 20180220
  • International Announcement: WO2018/179996 WO 20181004
  • Main IPC: H04N9/31
  • IPC: H04N9/31 G09G3/36
Lighting apparatus and projector
Abstract:
A lighting apparatus according to the disclosure includes: a light source; a phase modulation liquid crystal panel that includes a plurality of pixels, the phase modulation liquid crystal panel modulating a phase of light from the light source for each of the pixels; a modulation signal corrector that performs signal correction that corrects a pixel modulation signal for a target pixel among the plurality of pixels on the basis of a pixel modulation signal for at least one peripheral pixel that is located around the target pixel to reduce a deviation amount relative to a desired amount of modulation for the target pixel; and an application voltage generator that generates an application voltage to be applied to each of the pixels on the basis of the pixel modulation signal having been corrected by the modulation signal corrector.
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