Patent · US Active

Semiconductor integrated device for display drive

US9269672B2 · kind B2 · utility

1Cited by

5References

20Claims

0Family size

Assignee

Synaptics Display Devices GK · JP

Inventors

Yasuhiro Kumagai · Tokyo, JP
Masami Koketsu · Tokyo, JP

Key dates

Filing date	Sep 20, 2014
Grant date	Feb 23, 2016
Priority date	—
Expiry date	Sep 20, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2924/13091
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

In a display drive IC chip of an LCD or the like, an alignment mark is arranged in an alignment mark arrangement region on the main surface thereof, a dummy pattern is arranged on a lower layer, and an actual pattern is further arranged on the lower layer.

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