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Backlit lighting device, liquid crystal display device utilizing same, and liquid crystal display device manufacturing method

  • US 6,700,634 B2
  • Filed: 02/25/2002
  • Issued: 03/02/2004
  • Est. Priority Date: 11/08/2001
  • Status: Expired due to Term
First Claim
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1. A liquid crystal display device comprising:

  • a backlit lighting device having a light guide plate, a light source installed on the side surface of said light guide plate and a light directional diffusing elements section of said light guide plate; and

    a liquid crystal element;

    wherein said light directional diffusing elements section is formed on at least one of an upper surface and a lower surface of said light guide plate near said light source and has a configuration of multiple light directional diffusing elements arranged in parallel to one another and substantially in parallel to an optical axis of light from said light source so as to make said light from said light source directional along a light guide plate surface and to diffuse said light from said light source along a flat surface of said light guide plate; and

    wherein light emitted from said backlit lighting device irradiates onto said liquid crystal element.

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