Patent · US Expired

Information processing apparatus

US6771333B2 · kind B2 · utility

9Cited by
2References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 26, 2002
Grant dateAug 3, 2004
Priority date
Expiry dateNov 26, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F1/1662
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An information processing apparatus includes a display unit having a first reflective plate and a second reflective plate forming a reflective-plate unit, and a third reflective plate. The first reflective plate is bonded to an external frame, and the second reflective plate is connected to a reflective-plate hinge. In addition, the third reflective plate is pivotally connected to the reflective-plate hinge, and a diffusion plate is bonded to the third reflective plate. Light emitted from a cold-cathode fluorescent lamp is guided by an optical waveguide and illuminates the entire surface of a liquid crystal panel. In addition, a part of the light is reflected by the second reflective plate, is incident on the diffusion plate bonded to the third reflective plate, is efficiently diffused by the diffusion plate, and uniformly illuminates an operation unit such as a keyboard.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.