TFT array substrate structure
US9647009B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2016 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Mar 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/134372
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A TFT array substrate structure includes a patterned metal light-shielding layer that includes a plurality of metal light-shielding blocks arranged in an array and a narrowed metal strip connected between two adjacent ones of the metal light-shielding blocks. The metal light-shielding layer and a common electrode are connected to and receive a common voltage signal. For each of TFT, the pixel electrode is connected to a drain electrode of the TFT; the pixel electrode has a portion overlapping the common electrode to form a first storage capacitor; and the metal light-shielding layer has a portion overlapping the drain electrode and the pixel electrode to form a second storage capacitor. The first storage capacitor and the second storage capacitor are connected in parallel to increase the capacity of the storage capacitor. The metal light-shielding layer is arranged in a light-shielded area and thus the modification thereof does not affect aperture ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.