Touch display panel and touch display device
US11561645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2022 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Apr 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04111
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided a touch display panel includes a signal transmission layer, an insulation layer, and a touch layer disposed in stack. A surface of the signal transmission layer is provided with first concave-convex structure. The insulation layer covers the first concave-convex structure, and a surface thereof is provided with a second concave-convex structure at least partially overlapping the first concave-convex structure in a light exit direction. The second concave-convex structure includes a second convex portion, a second concave portion, and a second connecting portion, thickness of the second connecting portion smaller than either thickness of the second convex portion or thickness of the second concave portion. A connection via hole is further provided, penetrates at least the second connecting portion, exposes part of the signal transmission layer, and the touch layer electrically connected to the signal transmission layer through the connection via hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.