Liquid crystal display device and touch panel
US10401662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2018 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | May 31, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D62/405
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a highly reliable liquid crystal display device including flexible substrates and a crystalline oxide semiconductor film for a backplane. The device includes a flexible first substrate, a flexible second substrate facing the first substrate, and a liquid crystal layer sealed between the substrates with a sealing member. The first substrate is provided with a layer including a transistor, an organic resin film over the transistor, a pixel electrode and a common electrode over the organic resin film, which partly overlap with each other with an insulating film provided therebetween, and an alignment film thereover. The transistor includes a crystalline oxide semiconductor film as a semiconductor layer where a channel is formed. Drying treatment is performed on the layer before the liquid crystal layer is sealed between the substrates, and steps from the drying treatment to sealing of the liquid crystal layer are performed without exposure to the air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.