Driving integrated circuit, display device including the same, and method of measuring bonding resistance
US9772514B2 · kind B2 · utility
2Cited by
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10Claims
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Key dates
| Filing date | Aug 5, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2884
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A driving integrated circuit bonded to a mounting area of a display panel, the circuit including a plurality of connection contact pads electrically coupled to a plurality of signal pads in the mounting area, at least one test contact pad electrically coupled to at least one test pad in the mounting area, and a resistance measuring unit configured to charge an external capacitor electrically coupled to a bonding part of the test pad and the test contact pad and to measure a bonding resistance of the bonding part based on a magnitude or a discharging time of a charging voltage of the external capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.