Liquid crystal display device with relationship of a width of conductive thermocompression bonding tape to a width of a bonding thereof to an external conductive film and to an earth pad
US8804087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Aug 15, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An object of the present invention is to reliably ground an external conductive film formed on an opposed substrate to secure a stable shield effect in an IPS-type liquid crystal display device. An external conductive film formed on an opposed substrate is connected to an earth pad formed on a TFT substrate through a conductive thermocompression bonding tape. The conductive thermocompression bonding tape is connected by a thermocompression bonding head to form a conductive area. The width of the conductive area on the opposed substrate is made larger than the width of the conductive area on the TFT substrate to prevent the conductive thermocompression bonding tape from peeling off from the opposed substrate. Accordingly, the external conductive film of the opposed substrate is reliably grounded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.