Thin film integrated circuit device
US7333072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2004 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Mar 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/3031
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A device having an integrated circuit, especially an IC card, for reliably verifying a person's identity by display of PIN numbers or passwords with ingenuity. Portable electronic devices such as a PDA or a cellular phone, or other products can have plural displays in a display area (display part) provided in a limited area. A first display area and a second display area having transparency are stacked together in a thin film integrated circuit device of the present invention. The area of display can be reduced and display of more complicated PIN numbers or passwords is enabled by layering the display of the first display area and the display of the second display area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.