Touch panel for display device with pet film having transparent gel layer
US6784948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2002 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Mar 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133616
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A touch panel has a reduced whole thickness when attached to a display device, increases the accuracy of the positional information, and improves the display quality and durability inexpensively. One of a pair of resistive layers facing each other across insulating dot spacers is laid on a light-transmissible flat plate formed of a PET film rather than a glass plate, and a light conductive plate of a front light unit is integrated with an outer surface of the light-transmissible flat plate. An AR film having a transparent gel layer is disposed between the PET film and the light conductive plate. The transparent gel layer is of a gel material such as silicone rubber and is applied integrally on the AR film, which is formed such that anti-reflection treatment is applied on a surface of a base material of a FET film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.