| 发明名称 |
Display device with watermark area and non-watermark area |
| 摘要 |
The present invention is directed to display devices comprising a watermark area and a non-watermark area. The display cells in the watermark area have widths of the partition walls, heights of the partition walls, or top opening shapes, which are different from those of the display cells in the non-watermark area. The watermark aims to protect against counterfeiting or to be used for decoration purposes. The watermark is visible at certain viewing angles and/or under certain lighting conditions and it does not interfere with displaying of the regular images. |
| 申请公布号 |
US9470917(B2) |
申请公布日期 |
2016.10.18 |
| 申请号 |
US201313896232 |
申请日期 |
2013.05.16 |
| 申请人 |
E INK CALIFORNIA, LLC |
发明人 |
Lin Craig;Chan Bryan H. |
| 分类号 |
G02F1/1333;G02F1/01;G02F1/167 |
主分类号 |
G02F1/1333 |
| 代理机构 |
|
代理人 |
Cole David J. |
| 主权项 |
1. A display device comprising display cells filled with a display fluid and each of the display cells has partition walls for separating the display cells, wherein the display device has a watermark area and a non-watermark area, and the display cells in the watermark area have thickness of the partition walls, heights of the partition walls, or top opening shapes, which are different from those of the display cells in the non-watermark area. |
| 地址 |
Fremont CA US |
