Display device
US8493345B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Oct 2, 2009 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | May 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10128
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A highly reliable electrostatic-capacitive-type display device with a touch panel which allows a user to perform finger touch inputting and exhibits excellent detection sensitivity is provided. A transparent conductive film is formed above a back surface of an electrostatic-capacitive-type touch panel so as to block noises generated by a display device. A conductive member is provided to supply a voltage to a transparent conductive film formed above a back surface of the touch panel. An electrode which is formed on the electrostatic-capacitive-type touch panel is divided in accordance with a ratio between the number of X electrodes and the number of Y electrodes. A floating electrode is formed in a gap defined between the electrodes so as to adjust an area of the electrode. Due to the shrinkage of the area of the electrode, it is possible to lower a noise level to a level equal to or lower than a signal level. Accordingly, an S/N ratio is increased thus enhancing detection sensitivity. Further, lines are branched on a flexible printed circuit board and intersecting lines are formed on a back surface of the flexible printed circuit board, and the intersecting lines are made to ortho…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.