摘要:
An electron emission device is provided which has sufficient on/off characteristics and is capable of efficiently emitting electrons with a low voltage. An electron emission device includes a substrate, a cathode electrode, a gate electrode, which are arranged on the substrate, an insulation layer covering the surface of the cathode electrode, and a dipole layer formed by terminating the surface of the insulation layer with hydrogen.
摘要:
An electron emission device is provided which has sufficient on/off characteristics and is capable of efficiently emitting electrons with a low voltage. An electron emission device includes a substrate, a cathode electrode, a gate electrode, which are arranged on the substrate, an insulation layer covering the surface of the cathode electrode, and a dipole layer formed by terminating the surface of the insulation layer with hydrogen.
摘要:
A liquid crystal element includes a liquid crystal exhibiting spontaneous polarization, a pair of electrode substrates for sandwiching the liquid crystal therebetween, and insulating layers formed between the electrode substrates and the liquid crystal. A spontaneous polarization P.sub.s value, in nC/cm.sup.2, of the liquid crystal, an interelectrode composite capacitance Ci, in nF/cm.sup.2, of the insulating layers, and a voltage threshold value Vth, in volts, of optical response of the liquid crystal in the liquid crystal element satisfy the following condition: ##EQU1##
摘要翻译:液晶元件包括显示自发极化的液晶,一对夹在其间的液晶的电极基板以及形成在电极基板和液晶之间的绝缘层。 液晶的自发极化Ps值(nC / cm 2),绝缘层的nF / cm 2的电极间复合电容Ci和液晶的光响应的电压阈值Vth(伏特) 液晶元件满足以下条件:
摘要:
A liquid crystal optical element comprising a pair of electrode substrates having an electrode and a substrate and a chiral smectic liquid crystal disposed between said pair of electrode substrates, wherein an electrode on at least one of said pair of electrode substrates is provided regularly or randomly with minute insulation portions.
摘要:
An electrochromic device employing a metal oxide film as an oxidative-coloration layer is provided. The metal oxide film is a porous film comprising grains, 50% in number or more of which have a grain size of 1000 to 5000 .ANG. in diameter, and changes its optical density in a range of 0.3 to 0.65 between a bleached state and a colored state. The metal oxide film is prepared by an anodic oxidation process in which alternating potential is continuously applied to a metallic film initially with a smaller amplitude and subsequently with a larger amplitude.
摘要:
An electrochromic device comprises an oxidative-coloration layer between a pair of electrodes, said oxidative-coloration layer being composed of a film of a metal oxyhydroxide represented by the formula:MOx(OH)ywherein M is a metal of group VIII of the periodic table, x is a number satisfying 0