×

Liquid crystal display unit

  • US 6,102,545 A
  • Filed: 04/17/1997
  • Issued: 08/15/2000
  • Est. Priority Date: 10/18/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. In a projection type display unit having a black stripe screen, a projection lens, and a liquid crystal panel means,a liquid crystal display unit with reduced moire interference comprising at least a light-diverging means disposed in a light path from said liquid crystal panel means to said projection lens for diverging light horizontally and constituted so that a half-value width of a horizontal spread of spot size by said light-diverging means is not smaller than a value 0.75 times as large as a period of arrangement of black stripes, and a frequency response of said light diverging means is not smaller than 0.3 at the largest data frequency which can be restored by said liquid crystal panel means.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×