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. A liquid crystal display board comprising a number N of liquid crystal sub-displays arranged in i rows and j columns such that NnullinullJ, comprises a number of sections of sub-displays, each section of sub-displays comprises exactly one controller connected to a master module, the sections further comprises a number of column modules having a column driver chain and a number of row modules having a row driver chain, and the row and column driver chains is designed to provide a write signal to the corresponding row/column of the associated sub-display. The liquid crystal sub-displays preferably comprise a bi- or multi-stable liquid crystal type, preferably a smectic A liquid crystal.
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 (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:
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.
Abstract:
An ionic dopant comprising a sulfur or a phosphorus containing anion with a random cation, for use in a smectic A liquid crystal composition. The cation preferably comprises a quaternary ammonium cation.
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. A liquid crystal display board comprising a number N of liquid crystal sub-displays arranged in i rows and j columns such that N = i x j, comprises a number of sections of sub-displays, each section of sub-displays comprises exactly one controller connected to a master module, the sections further comprises a number of column modules having a column driver chain and a number of row modules having a row driver chain, andthe row and column driver chains is designed to provide a write signal to the corresponding row/column of the associated sub-display. The liquid crystal sub-displays preferably comprise a bi- or multi-stable liquid crystal type, preferably a smectic A liquid crystal.
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.
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.
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.
Abstract:
An ionic dopant comprising a sulfur or a phosphorus containing anion with a random cation, for use in a smectic A liquid crystal composition. The cation preferably comprises a quaternary ammonium cation.