• Patent Title: Display device with backlit multiple symbols
  • Application No.: US15344409
    Application Date: 2016-11-04
  • Publication No.: US10254468B2
    Publication Date: 2019-04-09
  • Inventor: Andreas Kramlich
  • Applicant: Preh GmbH
  • Applicant Address: DE Bad Neustadt a.d. Saale
  • Assignee: Preh GmbH
  • Current Assignee: Preh GmbH
  • Current Assignee Address: DE Bad Neustadt a.d. Saale
  • Agency: Walter | Haverfield LLP
  • Agent Sean F. Mellino; D. Peter Hochberg
  • Priority: DE102015119107 20151106; DE102016104708 20160315
  • Main IPC: F21V8/00
  • IPC: F21V8/00
Display device with backlit multiple symbols
Abstract:
A display device is provided. The display device comprises a display surface with several segments that can be backlit, which are configured in such a way that, if subsets of the segments are backlit together, a different one of several symbols is in each case depicted by the display surface, a number of light sources corresponding to the number of symbols, a layer structure of several flat light transmitting layers made of a transparent or translucent material, preferably plastic, wherein the light transmitting layers are stacked with the main surfaces facing each other and are in each case configured in such a way that, primarily, light of exactly one of the light sources is transmitted from a narrow side of the light transmitting layer provided for light entrance to another narrow side of the light transmitting layer as a light exit to at least one segment of the associated symbol.
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