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Display device and vehicle rearview mirror

  • US 10,682,959 B2
  • Filed: 08/02/2018
  • Issued: 06/16/2020
  • Est. Priority Date: 08/09/2017
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a first polarization member configured to absorb light linearly polarized in a second polarization direction orthogonal to a first polarization direction;

    an optical sheet configured to reflect light linearly polarized in the second polarization direction and transmit light linearly polarized in the first polarization direction;

    a front panel disposed between the first polarization member and the optical sheet and capable of changing a polarization direction of incident light into another polarization direction in accordance with a voltage applied to the front panel; and

    a display panel overlapping with the front panel with a second polarization member interposed therebetween, the second polarization member configured to transmit light linearly polarized in the second polarization direction to the optical sheet;

    whereinthe front panel includes a liquid crystal layer, anda retardation Δ

    nd (μ

    m) of the liquid crystal layer satisfies the following Expression (1);


    0.3996≤

    Δ

    nd≤

    0.4995  



    (1).

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