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Display apparatus and electronics device

  • US 7,978,167 B2
  • Filed: 09/22/2006
  • Issued: 07/12/2011
  • Est. Priority Date: 09/29/2005
  • Status: Active Grant
First Claim
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1. A display apparatus, comprising:

  • a picture display section for displaying an image;

    a display switching section, on a front face of the picture display section, for electrically switching observation statuses of the picture display section in viewing-angle directions without changing the image displayed on the picture display section;

    a first polarizer on a front face of the display switching section;

    a second polarizer between the picture display section and the display switching section; and

    a reflective polarizer between (i) a rear side of the display switching section and (ii) the second polarizer,the display switching section being a liquid crystal layer including a plurality of regions having at least two different alignment directions of liquid crystal molecules of TN mode,the liquid crystal layer switching, in response to a voltage that is applied to the liquid crystal layer, to at least (A) a narrow viewing-angle mode where an image displayed on the picture display section is (i) visible from a front direction but (ii) difficult to be observed from an oblique direction, whereinduring the narrow viewing-angle mode, a region where the image is difficult to be observed is partially displayed in mirror-surface displaying caused by the reflective polarizer by utilizing orientation of the liquid crystal layer.

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