摘要:
A temperature sensing element includes a thermistor composed of Si-base ceramics and a pair of metal electrodes bonded onto the surfaces of the thermistor. The metal electrodes contain Cr and a metal element α having a Si diffusion coefficient higher than that of Cr. A diffusion layer is formed in a bonding interface between the thermistor and each metal electrode, the diffusion layer including a silicide of the metal element α in a crystal grain boundary of the Si-base ceramics. A temperature sensor including the diffusion layers is provided. Owing to the diffusion layers, the temperature sensor ensures heat resistance and bonding reliability and enables temperature detection with high accuracy in a temperature range, in particular, of from −50° C. to 1050° C.
摘要:
A temperature sensor 1 includes: a thermosensitive element 2 composed of a low-thermal expansion ceramics having a coefficient of linear expansion of 3×10−6/° C. to 5×10−6/° C. and of which electrical s characteristics change depending on temperature; a pair of electrode films 20 provided on the surfaces of the thermosensitive element 2; and a pair of lead wires having a coefficient of linear expansion of 15×10−6/° C. or less and bonded to the electrode films 20. When the coefficients of linear expansion of the thermosensitive element 2, the electrode film 20, and the lead wire 21 are respectively Ta(/° C.), Tb(/° C.), and Td(/° C.), the temperature sensor 1 satisfies a relationship Ta≦Tb≦Td.
摘要:
This invention provides a production method for a ceramic structure capable of making a extrusion rate coefficient, in extruding of a ceramic structure, greater than that of prior art technologies. In a production method for a ceramic structure by the steps of mixing and kneading a ceramic batch material containing at least ceramic powder and water, extruding the mixture so kneaded, and drying and sintering a resulting extrudate, a water-insoluble liquid lubricant consisting of acyl glycerin and/or a derivative is added to the ceramic batch material.
摘要:
Two electroluminescent substrates, each emitting light having different color, are laminated and bonded together with adhesive layer interposed therebetween. An insulation film such as an epoxy film is placed between two substrates and deformed into an adhesive layer under pressure and heat. The adhesive layer serves as a bonding material and a humidity-protection layer as well. Electrical connection between electrodes of the electroluminescent substrates and outside driving circuits is made at the same time two substrates are bonded by the adhesive layer by bonding wiring sheets together. To further improve the humidity-protection ability of the adhesive layer, the surface of the electroluminescent substrates may be covered by resin which is hardened by radiating ultraviolet light at the same time the insulation film is deformed into the adhesive layer. Thus, the electroluminescent display panel having two substrates can be manufactured in a simple and inexpensive manufacturing process.
摘要:
An electroluminescent display panel which is able to selectively display different colors by changing a voltage level imposed thereon is made in a simple structure. A first luminescent layer (4) emitting green light, for example, and a second luminescent layer (5) emitting orange light, for example, are directly laminated on each other without interposing an intermediate electrode therebetween. The second luminescent layer covers only a part of the first luminescent layer to form a single layer portion and a double layer portion. The single layer portion emits green light at a low voltage level, while the double layer portion emits lemon light having a higher luminance at a high voltage level. The display may be made in a form of a matrix or a certain pattern. The display panel may be used as an instrument panel for an automobile. The green light display is used at night time, while the lemon light display with a high luminance is used at day time to cope with sun light.
摘要:
In an electroluminescent element in which a first electrode, a first insulating layer, a luminescent layer, a second insulating layer and a second electrode are sequentially laminated on a substrate, the luminescent layer has a first and second luminescent portions which are located apart from each other. A color filter is provided above one of the first and second luminescent portions. The second electrode includes a first part electrode for activating the first luminescent portion and a second part electrode for activating the second luminescent portion. The color filter is formed so that a portion extending from a bottom face of the color filter is inserted into a gap between the first and second luminescent portions to surround an upper face and side faces of the one of the first and second luminescent portions.
摘要:
In an electroluminescent device comprising an insulating substrate having consecutively thereon a first electrode, a first insulating layer, a luminescent layer composed of two types or more luminescent portions differing in luminescent color which are provided in a flat panel arrangement to give a single-layered luminescent layer, a second insulating layer and a second electrode, a first dielectric film is disposed between the luminescent portions to provide an isolation layer for isolating the luminescent portions, and a second dielectric film for adjusting the luminescence threshold voltage is disposed on the light outcoupling side or on the side opposite thereto of one of said luminescent portions. Herein, the first and second dielectric films provided for isolating the luminescent portions and for adjusting the luminescence threshold voltage, respectively, are made of the same material and have a refractive index lower than that of both luminescent portions.
摘要:
A method for producing a cordierite body having high crystallinity and exhibiting excellent low thermal expansion property in a specific direction at a relatively low firing temperature comprises the steps of mixing and kneading a batch raw material containing halloysite particles and plate-shaped talc particles, anisostatically forming the batch raw material into a formed body to impart a planar orientation to the plate-shaped talc particles within the batch raw material and drying and firing the formed body.
摘要:
According to this liquid crystal cell, a vacuum to be established between two electrode substrates as a result of the volume shrinkage of a liquid crystal having a high viscosity at the room temperature can be damped by communicating between two of a plurality of filling portions formed between two electrode substrates by a plurality of barrier walls through the intervening barrier walls. An anti-ferroelectric liquid crystal (AFLC) is used as the liquid crystal. The liquid crystal cell has a lower electrode substrate and an upper electrode substrate, between which a smectic liquid crystal is disposed together with a plurality of barrier walls on the inner side of a band seal. Each barrier wall has through holes to communicate between the two filling portions located on the two sides of the barrier walls.
摘要:
A thin-film EL display panel which has excellent packageability, high reliability and stable performance characteristics, and which can prevent nonuniformity of brightness and color from occurring and a fabrication method thereof are provided. In the above thin-film EL display panel, two thin-film EL elements 1 and 2 formed by sequentially laminating first electrodes 12 and 22, first insulating layers, luminescent layers, second insulating layers and second electrodes 16 and 26 respectively on glass substrates 11 and 21 are laminated into position and connecting terminal portions 12a, 22a, 16a and 26a for connecting the first electrodes 12 and 22 and second electrodes 16 and 26 are formed on the edge portions of the substrates 11 and 21 of the thin-film EL elements 1 and 2. connecting pad portions 17 and 18 which correspond respectively to the connecting terminal portions 22a and 26a of the thin-film EL element 2 are provided on the edge portions on the substrate of the thin-film EL element 1, the connecting pad portions are connected to the connecting terminal portions of the other thin-film EL element via conductive coupling sections 19 and the connecting pad portions and the connecting terminal portions to which lead wires are connected are provided on the edge portion of one substrate at a position where both substrates will not be laminated.