Abstract:
A display device comprising channels (30, 30′, 30″) containing an ionizable gas (33), and walls of the channels (30, 30′, 30″) being provided with row electrodes (31, 32) for selectively ionizing the ionizable gas (33) during operation. The display device is further provided with an electro-optical layer (35) and means for activating said electro-optical layer (35). The display device is characterized in that the ionizable gas (33) contains a carrier gas and an additional gas, said additional gas comprising deuterium or deuterium hydrogen, or hydrogen and a further gas having a higher molecular weight. Preferably, helium or nitrogen is used as the carrier gas, and the additional gas comprises deuterium or deuterium hydrogen, or hydrogen and nitrogen, or hydrogen and xenon.
Abstract:
A display device comprising a channel plate (39) having channels (30, 30′, 30″) containing an ionizable gas (33), and walls of the channels (30, 30′, 30″) being provided with electrodes (31, 32) for selectively ionizing the ionizable gas (33) during operation. The display device further includes an electro-optical layer and means for activating said electro-optical layer. The display device is characterized in that the ionizable gas (33) comprises a gas of the group formed by hydrogen, deuterium and deuterium hydrogen, and in that the display device is provided with means for supplying hydrogen, deuterium or deuterium hydrogen to the ionizable gas. Suitable materials include VZ2, LZ3, PdZ0.6, LaNi5Z6, LaNi2Zx, LaCo5Zx, Zr—Mn—Zx or Pd—Ag—Zx, where L is a lanthanide and Z is hydrogen and/or deuterium. The means are preferably situated in a recess (48) around the channel plate (39), in the pump connection (45) and/or they form part of the electrodes (31, 32).
Abstract:
The display device comprises at least one compartment (30, 30′, 30″) which contains an ionizable gas (33). Walls of the compartment (30, 30′, 30″) are provided with electrodes (31, 32) for selectively ionizing the gas (33), during operation, by means of a direct current. The display device is characterized in that the walls of the compartment (30, 30′, 30″) are provided with a layer (20) of a secondary electron-emitting material, the electrons (31, 32) remaining completely or partly uncovered. Preferably, the thickness of the layer (20) exceeds 20 nm, and the secondary electron-emitting material comprises a material of the group formed by magnesium oxide, chromium oxide, silicon nitride and yttrium oxide. Preferably, the display device further comprises an electro-optical layer (35), and a further layer (36) of a dielectric material is situated between the compartment (30, 30′, 30″) and the electro-optical layer (35), which further layer (36) is provided with the secondary electron-emitting layer (21) on a side facing away from the electro-optical layer (35).
Abstract:
The display device is furnished with a channel plate (39) comprising channels (30, 30', 30") containing an ionizable gas (33), and the walls of the channels (30, 30', 30") being provided with electrodes (31, 32) for selectively generating a plasma discharge of the ionizable gas (33) during operation. The display device further comprises an electro-optical layer (35) of a material having an optical property which is governed by the discharge state of the plasma discharge. The display device is characterized in that at least one of the electrodes (31, 32) is furnished with a layer (37) comprising particles of a sputter-resistant material having an average diameter .ltoreq.2.5 .mu.m, preferably .ltoreq.1.5 .mu.m. The particles are preferably composed of rare-earth borides (for example LaB.sub.6) or ruthenium oxide.
Abstract:
The present invention relates to an image display system comprising a display panel (1) having at least one channel (35, 37, 39) comprising an ionizable gas mixture (55) including at least a basic gas and an additional gas. The walls of the channel are provided with electrodes (41, 43) for selectively ionizing the ionizable gas mixture during operation. The display system further comprises means for supplying additional gas to the ionizable gas mixture. The additional gas is a gas of the group formed by deuterium, hydrogen and deuterium hydrogen. The image display system is provided with temperature-stabilizing means for stabilizing the temperature of the means for supplying deuterium, hydrogen or deuterium hydrogen.