Patent · US Expired

Operation panel with a display unit for use in washing machines

US5279134A · kind A · utility

22Cited by
2References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 17, 1992
Grant dateJan 18, 1994
Priority date
Expiry dateDec 17, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01H2219/012
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

An operation panel for use in a washing machine includes a display unit with a circular liquid crystal display having a central display section for displaying the name of a washing course and circumferential display sections for displaying the names of steps of the washing course and an electrically conductive transparent sheet disposed on the display screen of the display unit. The conductive sheet has portions corresponding to the display sections of the display unit respectively. Selecting switching elements responsive to the touch of user's finger are formed on these portions of the conductive sheet.

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