Patent · US Active

LED display apparatus

US9591720B2 · kind B2 · utility

3Cited by

0References

11Claims

0Family size

Assignee

Mitsubishi Electric Corporation · JP

Inventors

Yoshinori Asamura · Nagaokakyo, JP
Shigenori Shibue · Tokyo, JP
Isao Yoneoka · Tokyo, JP
Yasunori Wada · Yokkaichi, JP

Key dates

Filing date	Jul 7, 2016
Grant date	Mar 7, 2017
Priority date	—
Expiry date	Jul 7, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG09G2360/145
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An LED display apparatus includes a first LED display including a first LED, a second LED display including a second LED, and a luminance corrector. The luminance corrector corrects a luminance of the first LED in accordance with a first cumulative lighting period of the first LED and with both luminance transitions and a second cumulative lighting period of the second LED.

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