Invention Grant
US08106858B2 Aging compensation for display boards comprising light emitting elements 有权
包括发光元件的显示板的老化补偿

  • Patent Title: Aging compensation for display boards comprising light emitting elements
  • Patent Title (中): 包括发光元件的显示板的老化补偿
  • Application No.: US11826237
    Application Date: 2007-07-13
  • Publication No.: US08106858B2
    Publication Date: 2012-01-31
  • Inventor: Peter Gerets
  • Applicant: Peter Gerets
  • Applicant Address: BE Kortrijk
  • Assignee: Barco N.V.
  • Current Assignee: Barco N.V.
  • Current Assignee Address: BE Kortrijk
  • Agency: Bacon & Thomas, PLLC
  • Priority: EP06014750 20060714
  • Main IPC: G09G3/32
  • IPC: G09G3/32
Aging compensation for display boards comprising light emitting elements
Abstract:
The present invention provides a display board (30) comprising an array of light emitting elements (31), a driving means (32) for driving the light emitting elements (31) with image data, and an aging determination means (33). The aging determination means (33) comprises one or more light emitting elements for emitting light representative of the light emitted by the light emitting elements (31) of the display board (30), and at least one reference light emitting element (35) which, during use of the display board (30) is not driven. At the time of an intermediate calibration, the at least one reference light emitting element (35) is driven with calibration data and the light emitted by the reference light emitting element (35) is measured, as well as light representative of the light emitted by the light emitting elements. The difference between the light emitted by the at least one reference light emitting element (35) and the light representative of the light emitted by the light emitting elements is a measure for the degree of aging of the light emitting elements (31) of the array.
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