摘要:
The present invention provides a green phosphor for fluorescent display having a composition represented by a chemical formula: xZnO+(2-x-y/2)Ga2O3+yAl2O3:zMn2+ where 0.8≦x
摘要:
Provided with a phosphor for a fluorescent display that includes at least one divalent transition metal and at least two trivalent metal added to SrTiO3 and having a formula of: SrTi1−x−yMxNyO3:zPr3+ wherein M represents the divalent transition metal selected from the group consisting of Zn, Mn, Co, Ni, Cu and Cd, N represents the trivalent metal selected from the group consisting of Ga, Al, In and B, and 0≦x≦0.1, 0≦y≦0.1 and 0≦z≦0.1.
摘要翻译:提供一种用于荧光显示器的荧光体,其包括至少一种二价过渡金属和添加到SrTiO 3中的至少两种三价金属,并具有下式:其中M表示选自Zn,Mn,Co, Ni,Cu和Cd,N表示选自Ga,Al,In和B的三价金属,0表示0 <= x <= 0.1,0 <= y <= 0.1,0 <= z <= 0.1。
摘要:
Provided are a touch screen and a method of operating the same. The touch screen includes a detecting part, a control part, and a tactile feedback part. The detecting part detects object's approach or contact. The control part receives a signal of the detecting part to output a feedback signal. The tactile feedback part receives the feedback signal of the control part to provide a tactile feedback to a contact position using a magnetic force. The tactile feedback uses the magnetic force of a magnetic dipole.
摘要:
Provided are a touch screen and a method of operating the same. The touch screen includes a detecting part, a control part, and a tactile feedback part. The detecting part detects object's approach or contact. The control part receives a signal of the detecting part to output a feedback signal. The tactile feedback part receives the feedback signal of the control part to provide a tactile feedback to a contact position using a magnetic force. The tactile feedback uses the magnetic force of a magnetic dipole.
摘要:
The present invention relates to a field emission device and a method of fabricating the same. The method includes forming a hole having a nanometer size using silicon semiconductor process and then forming an emitter within the hole to form a field emission device. Therefore, the present invention can reduce the driving voltage and thus lower the power consumption.
摘要:
A field emission display device is disclosed. The device comprises an upper plate and a lower plate that are vacuum-packaged in parallel, wherein the lower plate is composed of matrix-addressable pixels, wherein the pixel formed on an insulation substrate comprises a field emitter array, a control thin-film transistor having a drain connected to an emitter electrode of the emitter array, and an addressing thin-film transistor having a drain connected to a gate electrode of the control thin-film transistor. Designing the control thin-film transistor to have a large parasitic capacitance between the source and the gate, one can obtain an active matrix display having a memory function and eliminate a conventional complex fabricating process of a memory capacitor, thereby simplify a panel fabricating process remarkably and largely increase the aperture ratio of a pixel. Furthermore, in the present invention, introducing glass for a substrate material instead of conventional single crystal silicon wafer, one can cheaply produce a large size panel and easily carry out a vacuum packaging that is indispensable for fabricating a field emission display.
摘要:
A method of manufacturing a vacuum device utilizing a sputtering process is disclosed. According to the present invention, the vacuum device includes a silicon substrate. An emission electrode having a sharp ended tip is formed by etching the silicon substrate. An insulating layer is formed on the silicon substrate so as to make the entire structure of the emission electrode to be exposed, with the emission electrode being surrounded by the insulating layer. A gate electrode is then formed adjacent to the sharp ended tip of the emission electrode. According to the present invention, it has advantages that the emission electrode is manufactured by forming the silicon pillar using the isotropic etching and anisotropic etching and the gate electrode can be easily formed adjacent to the emission electrode by using the sputtering method after the gate insulating layer is formed. Further, the distance between the emission electrode and the gate electrode may be easily adjusted, and the vacuum device may be operated with the desired voltage by controlling the distance between the emission electrode and the gate electrode of the vacuum device.
摘要:
A field emission display in which field emission devices are applied to a flat panel display. A field emission display with diode-type field emitters includes an upper plate and a lower plate, the upper plate and the lower plate are vacuum-packaged in parallel. The lower plate includes a plurality of column signal buses and a plurality of row signal buses, film type field emitters, and switching devices. The column signal buses and the row signal buses are made of metallic material. Pixels are defined by the column signal buses and the row signal buses. A film type field emitter and a switching device are formed inside each pixel. The switching device controls the field emitter on the basis of scan signals and data signals. The scan signals and data signals are loaded to the switching devices through the column signal buses and the row signal buses. The switching device includes at least three electrodes for connection with the column signal bus, the row signal bus, and the field emitter.
摘要:
A method for manufacturing a cathode tip of electric field emission device includes depositing conductive layer and undoped silicon layer on the insulator substrate sequentially; forming a tip-mask pattern on the selected area of top of said undoped silicon film and etching said undoped silicon film isotropically and then anisotropically in turn, so that the silicon film is formed as cone-like having cylinder; and removing the tip-mask pattern, implanting ion into the etched silicon layer and removing the ion implanted silicon layer using the wet etch process.
摘要:
The present invention relates to a cathode for use in a field emission device. In a triode-type cathode for use in an electron emission device being a core component constituting a field emission device, the present invention includes forming a catalytic layer at the sidewall of a gate hole and then growing an emitter in the catalytic layer, thus uniformly distributing an electric field generated by a voltage applied to a gate electrode over the emitter. Therefore, the present invention can improve the brightness contrast at a low anode voltage and also can control electrons emitted from the emitter only with the gate voltage.