| US 7,551,258 B2 | ||
| Patterned light modulating device | ||
| John C. Jones, Leigh Sinton (United Kingdom); and Emma L. Wood, Felton (United Kingdom) | ||
| Assigned to ZBD Displays Limited, Malvern (United Kingdom) | ||
| Filed on Jul. 07, 2003, as Appl. No. 10/612,877. | ||
| Claims priority of application No. 0215481.3 (GB), filed on Jul. 04, 2002; and application No. 0220449.3 (GB), filed on Sep. 03, 2002. | ||
| Prior Publication US 2004/0165135 A1, Aug. 26, 2004 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G02F 1/1343 (2006.01) | ||
| U.S. Cl. 349—142 [349/85; 349/201; 349/123; 349/124; 349/125; 349/126; 349/127; 349/128; 349/129; 349/130] | 24 Claims |
| 1. A repeated pattern layer for a pixellated light modulating device comprising a cell having a light modulating medium and a plurality of electrodes defining pixels, and further comprising a plurality of switching regions within each repeat unit, wherein each switching region is arranged to impart one of at least two predetermined electro-optic characteristics to said light modulating medium wherein the repeat unit length is less than half the length of the minimum pixel dimension and wherein each pixel contains areas of each electro-optic characteristic in substantially the same relative proportion as any other pixel. |