Patent · US Active

Method and apparatus for color filter as touch pad

US9823502B2 · kind B2 · utility

2Cited by

1References

15Claims

0Family size

Assignee

NOKIA TECHNOLOGIES OY · FI

Inventors

Vicente Calvo Alonso · Kaarina, FI
Juha Harri-Pekka Nurmi · Salo, FI

Key dates

Filing date	Jun 12, 2013
Grant date	Nov 21, 2017
Priority date	—
Expiry date	Oct 25, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/133334
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In accordance with an example embodiment of the present invention, an apparatus is disclosed. The apparatus includes a display section and a touch panel section. The touch panel section is adjacent the display section. The touch panel section includes a first layer, a second layer and a third layer. The first layer includes a conductive material. The second layer includes a bottom guard layer. The third layer includes a top guard layer. The first layer is between the second and third layers. The conductive material includes a color filter and a black matrix.

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