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Display unit, display device, and method for manufacturing the display device

  • US 20020050784A1
  • Filed: 10/31/2001
  • Published: 05/02/2002
  • Est. Priority Date: 11/01/2000
  • Status: Active Grant
First Claim
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1. A display unit, comprising:

  • a transparent hollow tube member; and

    at least one display element sealed in said transparent hollow tube member, said display element being capable of rotating independently, wherein said display element has a surface which is divided into a plurality of areas having different colors, and said display element is polarized to have at least two poles having a different electrification state.

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