摘要:
The present invention provides a field emission device driven with a high voltage. The field emission device of the present invention includes a resistor connected between a gate electrode and an external terminal to prevent a leakage current by an electrical connection between the gate electrode and the emitter. Therefore, the power consumption of the device is decreased and the operating characteristic of the device is improved.
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 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.
摘要:
A field emission display having an n-channel high voltage thin film transistor is disclosed. According to the present invention, a signal for driving pixels controls by the nHVTFT attached with each pixel, therefore, the signal voltage of row and column drivers is exceedingly decreased. As a result, it is possible to implement a field emission display capable of providing a high quality picture in a low consumption power, a low driving voltage and inexpensive to manufacture, and preventing a line cross talk using the nHVTFT. By using a cylindrical resistive body underlying a cone-shaped emitter tip, the present invention is to provide a field emission display having an excellent contollability and stability of the emission current, and a dynamic driving capability.
摘要:
Provided is a memory cell including: a ferroelectric transistor; a plurality of switching elements electrically connected to the ferroelectric transistor; and a plurality of control lines for transmitting individual control signals to each of the plurality of switching element for separately controlling the plurality of switching elements. The plurality of switching elements are configured to be separately controlled on the basis of the individual control signals so as to prevent each electrode of the ferroelectric transistor from being floated.
摘要:
Provided are a transparent nonvolatile memory thin film transistor (TFT) and a method of manufacturing the same. The memory TFT includes source and drain electrodes disposed on a transparent substrate. A transparent semiconductor thin layer is disposed on the source and drain electrodes and the transparent substrate interposed between the source and drain electrodes. An organic ferroelectric thin layer is disposed on the transparent semiconductor thin layer. A gate electrode is disposed on the organic ferroelectric thin layer in alignment with the transparent semiconductor thin layer. Thus, the transparent nonvolatile memory TFT employs the organic ferroelectric thin layer, the oxide semiconductor thin layer, and auxiliary insulating layers disposed above and below the organic ferroelectric thin layer, thereby enabling low-cost manufacture of a transparent nonvolatile memory device capable of a low-temperature process.
摘要:
Provided are a transparent nonvolatile memory thin film transistor (TFT) and a method of manufacturing the same. The memory TFT includes source and drain electrodes disposed on a transparent substrate. A transparent semiconductor thin layer is disposed on the source and drain electrodes and the transparent substrate interposed between the source and drain electrodes. An organic ferroelectric thin layer is disposed on the transparent semiconductor thin layer. A gate electrode is disposed on the organic ferroelectric thin layer in alignment with the transparent semiconductor thin layer. Thus, the transparent nonvolatile memory TFT employs the organic ferroelectric thin layer, the oxide semiconductor thin layer, and auxiliary insulating layers disposed above and below the organic ferroelectric thin layer, thereby enabling low-cost manufacture of a transparent nonvolatile memory device capable of a low-temperature process.
摘要:
Provided are a semiconductor device including a dual gate transistor and a method of fabricating the same. The semiconductor device includes a lower gate electrode, an upper gate electrode on the lower gate electrode, a contact plug interposed between the lower gate electrode and the upper gate electrode, and connecting the lower gate electrode to the upper gate electrode, and a functional electrode spaced apart from the upper gate electrode and formed at the same height as the upper gate electrode. The dual gate transistor exhibiting high field effect mobility is applied to the semiconductor device, so that characteristics of the semiconductor device can be improved. In particular, since no additional mask or deposition process is necessary, a large-area high-definition semiconductor device can be mass-produced with neither an increase in process cost nor a decrease in yield.