Abstract: Methods and apparatus for adjusting or reducing intrinsic DC offset potential in a Liquid Crystal Display (LCD) are taught. The methods allow the upper and lower assemblies of the LCD device to be manufactured with selected materials while achieving adjusted or reduced intrinsic DC offset potential in the finished LCD device. The methods are especially useful for reflective LCD designs where it is not possible to build the LCD with symmetric assemblies.

Abstract: Chemoluminescent illuminators are used to provide night visible game equipment, notably, croquet and bocce. The balls are hollow metal spheres having plural openings and light stick receptors to retain the light stick in the ball. Light emitted from the light stick escapes from the opaque balls through the openings. The interior surface of the sphere may be treated in a variety of ways to increase light scattering within the hollow interior to define an integrating sphere. Different colored illuminators are provided to mark different balls as relating to different players. Wickets preferably comprise elongate chemoluminescent illuminators that are held in proximity to conventional wickets with torsional springs or with loops formed in the wickets. Wicket holders may also be provided to assist with directly supporting the chemoluminescent illuminators that are used as wickets.

Abstract: Chemoluminescent illuminators are used in night visible game equipment, notably, croquet and bocce. Game balls overcome rotational wobble tendencies resulting from perturbations in the rotational moments of inertia. The balls are at least partially transparent or translucent and include a receptacle for receiving a chemoluminescent illuminator. Different colored illuminators are provided to mark different balls as relating to different players. In one embodiment the balls have relatively thin outer walls and internal metallic rings to contribute a majority of the necessary weight and to add differential weighting to equalize the moments of inertia around all three axes. Wickets comprise chemoluminescent illuminators held in proximity to conventional wickets. Wicket holders may assist with supporting the illuminators. Stakes and mallets accept chemoluminescent illuminators to illuminate the stakes.

Abstract: A plasma addressed display or storage device includes a substrate and at least first and second plasma electrodes on an upper surface of the substrate. The first plasma electrode is connected to an external potential and the second plasma electrode is not ohmically connected to an external potential.

Abstract: Chemoluminescent illuminators are used to provide night visible game equipment, notably, croquet and bocce. The balls are hollow metal spheres having plural openings and light stick receptors to retain the light stick in the ball. Light emitted from the light stick escapes from the opaque balls through the openings. The interior surface of the sphere may be treated in a variety of ways to increase light scattering within the hollow interior to define an integrating sphere. Different colored illuminators are provided to mark different balls as relating to different players. Wickets preferably comprise elongate chemoluminescent illuminators that are held in proximity to conventional wickets with torsional springs or with loops formed in the wickets. Wicket holders may also be provided to assist with directly supporting the chemoluminescent illuminators that are used as wickets.

Abstract: A PALC panel is operated by driving a channel electrode to a positive voltage relative to the data drive electrode to initiate an AC discharge in the channel and thereafter maintaining a sufficient voltage between the channel electrodes to sustain a DC discharge in the channel.

Abstract: An array of parallel spaced fiber segments is attached to the flat upper surface of a transparent plate. The transparent plate and the fiber segments preferably are made of glass, with the fiber segments bonded to the transparent plate with fused glass frit or by sintering under pressure. The plate and attached fiber segments suitably are embodied in the channel substrate for a plasma-addressed display device, such as a PALC panel.

Abstract: Chemoluminescent illuminators are used in night visible game equipment, notably, croquet and bocce. Game balls overcome rotational wobble tendencies resulting from perturbations in the rotational moments of inertia. The balls are at least partially transparent or translucent and include a receptacle for receiving a chemoluminescent illuminator. Different colored illuminators are provided to mark different balls as relating to different players. In one embodiment the balls have relatively thin outer walls and internal metallic rings to contribute a majority of the necessary weight and to add differential weighting to equalize the moments of inertia around all three axes. Wickets comprise chemoluminescent illuminators held in proximity to conventional wickets. Wicket holders may assist with supporting the illuminators. Stakes and mallets accept chemoluminescent illuminators to illuminate the stakes.

Abstract: Methods and apparatus for adjusting or reducing intrinsic DC offset potential in a Liquid Crystal Display (LCD) are taught. The methods allow the upper and lower assemblies of the LCD device to be manufactured with selected materials while achieving adjusted or reduced intrinsic DC offset potential in the finished LCD device. The methods are especially useful for reflective LCD designs where it is not possible to build the LCD with symmetric assemblies.

Abstract: Methods and apparatus to predict the DC offset potential of a liquid crystal display (LCD) device are described. Surface potential measurements of each half of an LCD device are made before final assembly into the finished LCD device, thereby providing a method of predicting the DC offset potential that will exist in the finished LCD device. The surface potentials of the surfaces that mate with the liquid crystal layer, control the DC offset potential that exists in the finished LCD device.

Abstract: A PALC panel which includes a layer of insulating material over the plasma electrodes and in which the cover sheet is spaced from the layer of insulating material at a distance of less than about 50 &mgr;m.

Abstract: A PALC panel is operated by increasing the voltage between the channel electrodes to a firing voltage to create a plasma in the channel, reducing the voltage between the channel electrodes to a sustaining voltage to sustain the plasma for an interval during which a selected drive voltage is applied to the data drive electrode to establish an electric field in the layer of electro-optic material, and reducing the voltage between the channel electrodes to a bias voltage, which is insufficient to sustain the plasma but provides an electric field having a component parallel to the cover sheet in the layer of electro-optic material.

Abstract: A plasma addressed display or storage device includes a substrate, at least two plasma electrodes on an upper surface of the substrate, and a thin sheet of substantially non-depolarizing transparent dielectric material attached to the substrate and in contact with the plasma electrodes.

Abstract: A plasma addressed display or storage device includes a substrate and at least first and second plasma electrodes on an upper surface of the substrate. The first plasma electrode is connected to an external potential and the second plasma electrode is not ohmically connected to an external potential.

Abstract: A PALC panel which includes a layer of insulating material over the plasma electrodes and in which the cover sheet is spaced from the layer of insulating material at a distance of less than about 50 um.

Abstract: A plasma addressed data storage or display device includes a channel structure defining multiple channels, a single plasma electrode in each channel, a cover sheet over the channel structure, ionizable gas in the channels, a layer of electro-optic material over the cover sheet, and an array of data drive electrodes over the layer of electro-optic material. A discharge is initiated in the active channel by controlling the potential difference between the single plasma electrode in the active channel and the data drive electrodes.

Abstract: A PALC panel is operated by driving a channel electrode to a positive voltage relative to the data drive electrode to initiate an AC discharge in the channel and thereafter maintaining a sufficient voltage between the channel electrodes to sustain a DC discharge in the channel.

Abstract: A PALC panel has narrow cathodes.

Abstract: The cover sheet of a PALC display panel is spaced from the ribs of the channel member.

Abstract: A channel member for a PALC panel includes a transparent plate having a planar surface and first and second electrodes on the planar surface of the transparent plate. The first electrode has a width in the range 35-90 .mu.m and a height in the range 0.5-30 .mu.m and the second electrode has a width in the range 30-70 .mu.m and a height in the range 0.5-30 .mu.m. A rib is attached to the first electrode and has a width in the range 15-40 .mu.m, a height in the range 80-200 .mu.m and a ratio of height to width of at least about 5:1.