Tiled light emitting diode display panel having different resistance per unit length signal lines
US11355473B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2020 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Jul 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/12
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A tiled light emitting diode (LED) display panel includes multiple flexible back plates arranged in tiles. Each flexible back plate has multiple through holes formed thereon. A pixel array is formed by multiple LEDs on the flexible back plates and collectively defines multiple pixels. Each pixel includes one LED and thin-film transistor (TFT) circuits disposed on a first side of a corresponding flexible back plate. A printed circuit board (PCB) is disposed at a second side of the flexible back plates. A third side of the PCB faces the second side of the flexible back plates and has multiple signal lines formed thereon. The LEDs and the TFT circuits of the pixels are electrically connected to the corresponding signal lines via multiple conductive structures formed in the through holes. A resistance per unit length of each flexible back plates is greater than a resistance per unit length of the PCB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.