Patent · US Active

Numerical display device

US7647717B2 · kind B2 · utility

1Cited by

9References

13Claims

0Family size

Assignee

Qingdao Autodisplay Co., Ltd. · CN

Inventors

Haikun Chen · Shandong, CN
Liqun Zhang · Beijing, CN
Yanjun Wu · Tangxia, CN
Bingtong Du · Shandong, CN

Key dates

Filing date	Jun 26, 2007
Grant date	Jan 19, 2010
Priority date	—
Expiry date	Jan 23, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG09F9/375
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A numerical display device includes a base panel, a plurality of numerical sections provided on the base panel to form a numerical character, a plurality of folding panels pivotally coupling at the base panel to fold between a first position and a second position to selectively change the numerical character, and a magnet arrangement for retaining each of the folding panels at the first and second positions, wherein at the first position, the folding panel is pivotally folded on the base panel to fully cover the respective numerical section, and at the second position, the folding panel is pivotally folded at 180° to expose the respective numerical section.

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