Abstract: An ionic dopant comprising a sulfur or a phosphorus containing anion with a randon cation, for use in a smectic A liquid crystal composition. The cation preferably comprises a quaternary ammonium cation.
Type:
Grant
Filed:
September 2, 2003
Date of Patent:
March 16, 2010
Assignee:
Polydisplay ASA
Inventors:
Kjetil A. Netland, Maxim V. Mitrokhine, Lorenzo Williams, Kjetil H. Holm, Fiona J. Farrand
Abstract: This invention relates to a method for encapsulation of liquid crystals to form spherical particles with a narrow size distribution. More specific, this invention relates to a method for encapsulation of liquid crystals that are suitable to be employed in liquid crystal displays, including displays intended to be used in large boards outdoors.
Type:
Grant
Filed:
July 14, 2005
Date of Patent:
July 8, 2008
Assignee:
Polydisplay ASA
Inventors:
Anne Dalager Dyrli, Ruth Baumberger Schmid, Cecilie Kristiansen, Jan K. Nielsen, Maxim Miltrokhin, Lorenzo Williams
Abstract: The present invention relates to a thin display (15), and a method of manufacturing the same. The display (15) comprises an isolated substrate 80), with cavities (60) also called micro pockets in a pattern, or created with a separate sheet (55) with holes (60) mounted on the substrate (80). These micro pockets (60) will make the picture elements of the display (15). The display (15) further comprises perforated holes (70) in the centre of the micro pockets (60) and a conductive material (40, 50) covering the surfaces inside the micro pockets (60) and the perforated holes. An electro-optical material (30) fill the cavities (60), and a uniform layer of transparent conductive material (20) cover all the filled micro pockets (60). A top layer of a transparent substrate (10) cover the conductive layer (20).
Abstract: The present invention relates to a thin display, and a method of manufacturing the same. The display comprises an isolated substrate, with cavities also called micro pockets in a pattern, or created with a separate sheet with holes mounted on the substrate. These micro pockets will make the picture elements of the display. The display further comprises perforated holes in the centre of the micro pockets and a conductive material covering the surfaces inside the micro pockets and the perforated holes. An electro-optical material fill the cavities, and a uniform layer of transparent conductive material cover all the filled micro pockets. A top layer of a transparent substrate cover the conductive layer.
Abstract: The present invention relates to a thin display (15), and a method of manufacturing the same. The display (15) comprises an isolated substrate 80), with cavities (60) also called micro pockets in a pattern, or created with a separate sheet (55) with holes (60) mounted on the substrate (80). These micro pockets (60) will make the picture elements of the display (15). The display (15) further comprises perforated holes (70) in the centre of the micro pockets (60) and a conductive material (40, 50) covering the surfaces inside the micro pockets (60) and the perforated holes. An electro-optical material (30) fill the cavities (60), and a uniform layer of transparent conductive material (20) cover all the filled micro pockets (60). A top layer of a transparent substrate (10) cover the conductive layer (20).
Abstract: The invention concerns a display board, a method of driving and a method for building low frame rate scalable display boards from special liquid crystal display devices.