Abstract:
A method for manufacturing a field emission device is provided to improve the uniformity of luminance by accurately forming an emitter at a center portion of an emitter hole. A cathode electrode(112), an insulation layer(114) and a gate material layer are formed on a substrate(110), and then a metal sacrificial layer is formed on the gate material layer. A through-hole is formed in the metal sacrificial layer and the gate material layer to expose the insulation layer. An emitter hole(130) is formed in the exposed insulation layer to expose the cathode electrode, and then the gate material layer is etched to form a gate electrode(115). An emitter(150) made of carbon nano-tubes is formed on the cathode electrode.
Abstract:
A method of driving a field emission device and an aging method using the same are provided to enhance uniformity of electron emission by preventing arcing in an electron beam emission. A field emission device includes a cathode electrode having an electron emission source and an anode electrode, which is formed opposite to the cathode electrode. A driving voltage for electron emission utilizes an AC(Alternating Current) voltage(Vc1). The AC voltage is a waveform, which a voltage is varied according to time elapses, in the electron emission. The waveform of the AC voltage is a sine wave or a triangle wave. The AC voltage is a digital signal, which a voltage is varied according to time elapses, in the electron emission.
Abstract:
PURPOSE: A photonic crystal structure, a method for manufacturing the same, a reflective color filter and a display device employing the photonic crystal structure are provided to extend the viewing angle of the display device. CONSTITUTION: A photonic crystal structure(100) includes a nanostructure layer and a photonic crystal layer(140). The nanostructure layer is made of nanoparticles(120). The photonic crystal layer has a non-planar surface(140a). The photonic crystal layer includes a first material layer(141) having a first refractive index and a second material layer(142) having a second refractive index.
Abstract:
PURPOSE: An active electro-discoloration element array and manufacturing method thereof are provided to prepare the partition structure for electrolyte separation. CONSTITUTION: An active electro-discoloration element array includes as follows. A first substrate(10) has a plurality of pixel electrode(27) which is arranged in two dimensional, a has a pixel circuit(20) including a thin film transistor(21) which is connected to a plurality of pixel electrode, and has a plurality of an electro-discoloration layer(50) which is formed on a plurality of pixel electrode. A second substrate(80) has a facing electrode(82), has a reflective layer(86) on the facing electrode and is combined separately with the first substrate to face the reflective layer and the elector-discoloration layer. A partition wall(40) separately supports the first substrate and the second substrate by being arranged between the first substrate and the second substrate and partitions spaces corresponding to a plurality of electro-discoloration layer between the first substrate and the second substrate. Electrolyte is filled in a space portioned by the first substrate, the second substrate, and the partition wall.
Abstract:
PURPOSE: A micro heater array, a pn junction forming method using the same, and a pn junction device including the micro heater array and the pn junction with a large area are provided to simplify process equipment by removing a complex heating device in a chamber for forming the pn junction. CONSTITUTION: A micro heater array(101) includes a substrate(10), at least one first micro heater(20), and at least one second micro heater(30). One first micro heater or more are equipped on the substrate in parallel in one direction. The first micro heater includes a first heating unit(21), and a first supporter(22). The first heating unit is separated from the substrate. The first heating unit is extended to one direction. The first supporters are separately equipped on the substrate. The second micro heater includes a second heating unit(31), and second supporters(32). The second heating unit is extended to a direction vertical to the one direction. The supporters are separately equipped on the substrate. The second supporters support the second heating unit.
Abstract:
An electrowetting display device includes a first substrate and a second substrate which face each other and are separated from each other; a cell region which is a region between the first and second substrates and includes a pixel region and a reservoir region; a conductive first fluid, which flows according to an electrowetting principle and is arranged in the cell region, and a non-conductive second fluid which is not mixed with the first fluid; and an electrode unit turning on and off the pixel region and including a pixel electrode coated with an insulating material and at least one reservoir electrode coated with the insulating material to facilitate the inflow of either the first fluid or the second fluid into the reservoir region.