Abstract:
A thick film, electroluminescent lamp and method of construction in which a single non-hygroscopic binder is used for all layers (with the optional exception of the rear electrode), thereby reducing delamination as a result of temperature changes and the susceptibility to moisture. The use of a common binder for both phosphor and adjacent dielectric layers reduces lamp failure due to localized heating, thus increasing light output for a given voltage and excitation frequency, and increasing the ability of the lamp to withstand overvoltage conditions without failure. Layers may be provided on both sides of a common rear electrode to provide a lamp with two independently operable lamp surfaces. A front electrode may be exposed on a side of the lamp with the rear electrode by cutting the layers down to the front electrode after the layers have been joined.
Abstract:
Variable index optical single-layers, optical multilayer, and laser-resistant coatings were made from a perfluorinated amorphous polymer material by physical vapor deposition. This was accomplished by physically vapor depositing a polymer material, such as bulk Teflon AF2400, for example, to form thin layers that have a very low refractive index (.about.1.10-1.31) and are highly transparent from the ultra-violet through the near infrared regime, and maintain the low refractive index of the bulk material. The refractive index can be varied by simply varying one process parameter, either the deposition rate or the substrate temperature. The thus forming coatings may be utilized in anti-reflectors and graded anti-reflection coatings, as well as in optical layers for laser-resistant coatings at optical wavelengths of less than about 2000 nm.
Abstract:
A thin film EL element includes a pair of electrodes disposed oppositely each other, a pair of insulator layers disposed between the electrodes, at least one of the insulator layers consisting essentially of tantalum oxide (Ta.sub.2 O.sub.5) and at least one oxide selected from the group consisting of yttrium oxide (Y.sub.2 O.sub.3) and tungsten oxide (WO.sub.3), and a luminous layer held between the insulator layers. The EL element can be operated at high luminance with only a minimum low voltage required for such an operation. Further, the EL element makes long-lived, stable, etc. display devices. Furthermore, the EL element can be produced by a simplified manufacturing process.
Abstract translation:薄膜EL元件包括彼此相对设置的一对电极,设置在电极之间的一对绝缘体层,至少一个绝缘体层主要由氧化钽(Ta 2 O 5)和至少一种氧化物组成,氧化物选自 的氧化钇(Y 2 O 3)和氧化钨(WO 3),以及保持在绝缘体层之间的发光层。 EL元件可以以高亮度操作,只需要这种操作所需的最小低电压。 此外,EL元件使得长寿命,稳定等显示设备。 此外,EL元件可以通过简化的制造工艺制造。
Abstract:
The method of providing a pair of contact terminals on the back side of an electroluminescent (EL) lamp, of the type which has EL material between front and back conductive layers, which are disposed on a transparent substrate. A bump of conductive material deposited on the front conductive layer is insulated from the back conductive layer for providing a contact terminal on the back of the EL lamp which is connected to the front conductive layer. A preferred embodiment includes the further steps of adding an extension which relocates the back connection to a different place on the back of the EL lamp.
Abstract:
The lumen output of a fluorescent lamp is improved by the triode radio frequency sputter coating of a continuous protective coating of vitreous alumina overlying the lamp phosphor layer.
Abstract:
A thin film electroluminescent device constructed on a smooth surface substrate on which a base conductive layer is formed, followed in sequence by an impurity doped barrier layer, an electrically resistive layer and a counterelectrode layer. The impurity doped barrier layer is doped with a material which exhibits electroluminescence.The impurity doped barrier layer is produced in a controlled oxidation process of the base conductive layer which is alloyed to a minor extent with the impurity material.
Abstract:
An absorbing coating consisting of three layers sequentially deposited on e aluminized phosphor screen of an electro-optical device such as an image intensifier. The layers are: a transparent dielectric layer with a thickness of about one quarter wavelength of radiation to be absorbed, a thin metal semitransparent layer, and an aluminum oxide protective layer for the thin metal layer. The coating is transparent to electrons bombarding the phosphor, but absorbs radiation which might pass through the photocathode and be reflected from the phosphor aluminum coating back to the photocathode. Such reflected radiation can cause spurious output electrons from the photocathode.
Abstract:
An electron beam scanner has a broad surfaced target and an area cathode with control electrodes sandwiched therebetween for controlling the electron flow between the cathode and the target. The target comprises a transparent plate member having a phosphorescent coating thereon which emits light through the transparent plate in response to electrons incident thereon, electrons being passed from the cathode to the target through channels formed by alined apertures in the control electrodes. The surface of the control electrode directly opposite the phosphorescent coating on the target is light absorbent such that substantially all of the light passing through the target plate or reflected from the outer surface thereof is absorbed.
Abstract:
An image-retaining panel receives a momentarily projected image, and retains a replica of that image for extended periods irrespective of local lighting. The panel consists of a pair of electroluminescent slabs electrically connected by an opaque layer that conducts only laterally. The viewing image formed on the outer electroluminescent slab does not affect the photoconductivity of the medium which drives the inner electroluminescent slab. Hence, ambient light falling on the outer slab does not affect the image.
Abstract:
An amorphous semiconductor layer is employed in the display panel disclosed herein. An electroluminescent layer is sandwiched between the amorphous semiconductor layer and a set of parallel spaced conductors. An AC signal is applied to the conductors so that adjacent conductors are 180* out of phase. A field is established between adjacent conductors which passes up through the electroluminescent layer across the layer of amorphous semiconductor material and back down through another portion of the electroluminescent layer. If the amorphous semiconductor material is in a low resistance state the field across the electroluminescent material is made sufficiently strong to cause it to emit light. By switching the amorphous semiconductor material at selected regions, the electroluminescent material emits light in accordance with a desired pattern of information to be displayed. Systems are disclosed for switching the amorphous material in a variety of ways, and techniques for varying the intensity and contrast of the display are also disclosed.