Thin film transistor liquid crystal display having capacitive touch sensor embedded therein
US9501164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2013 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jul 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3648
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a thin film transistor liquid crystal display (TFT LCD) in which a capacitive touch sensor is embedded, the TFT LCD comprising: a touch sensor source follower TFT formed on a substrate; a first electrode connected to a gate electrode of the touch sensor source follower TFT; a touch sensor reset TFT including the first electrode; an insulator film formed on the first electrode; a second electrode formed on the insulator film; and a display switching TFT including the second electrode, wherein the second electrode is connected to a drain electrode of the display switching TFT; the touch sensor reset TFT and the gate electrode of the touch sensor source follower TFT share the first electrode; and the first electrode is connected to the gate electrode of the touch sensor source follower TFT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.