Abstract:
Disclosed are a driving apparatus of a passive matrix type electronic ink display device capable of driving the electronic ink display device precisely, improving a contrast of data displayed in the electronic ink display device, and simplifying a manufacturing process according to a simple construction of the electronic ink display device, and a method therefor. For this purpose, the method for driving the electronic ink display device comprises the steps of: applying a data voltage to at least one data line among a plurality of data lines; and applying a scan voltage only to one scan line selected among a plurality of scan lines while the data voltage is applied, and then floating the remaining scan lines other than the selected scan line.
Abstract:
An apparatus and method for driving a field emission display (FED) device are disclosed. By applying a voltage to a specific electrode (data electrode or mesh electrode) of the FED device during a blanking time of a display frame of an FED, electric charges unnecessarily charged in the FED device can be removed.
Abstract:
A field emission display (FED) device prevents a phenomenon that a cross talk occurs among neighboring cells by preventing distortion of electron beam and enhances luminance. The FED device includes a gate electrode and an insulation layer sequentially formed on a substrate; a cathode electrode formed on the insulation layer and crossing the gate electrode; a carbon nano tube (CNT) formed on the cathode electrode and having a smaller length than the gate electrode; and an auxiliary electrode formed parallel to the cathode electrode.
Abstract:
An FED device includes an anode electrode formed on a substrate; a phosphor layer formed on the anode electrode; and field emission devices for emitting at least two electron beams onto the phosphor layer. An area where a fluorescent material is excited can be enlarged and luminance and efficiency of the FED can be enhanced.
Abstract:
An FED device comprising at least one gate electrode and an insulation layer sequentially formed on a substrate, at least one cathode electrode positioned on the insulation layer, crossing the at least one gate electrode, and having at least one first groove portion or at least one first protrusion, at least one auxiliary electrode formed parallel to the cathode electrode and having at least one second groove portion or at least one second protrusion, and at least one carbon nano tube (CNT) formed at a boundary portion of the first groove portion of the cathode electrode or on the second protrusion of the cathode electrode. Distortion of electron beams generated from the FED can be minimized, cross talk generated among neighboring cells can be minimized, and luminance of the FED device can be enhanced.
Abstract:
A surface conduction type electron-emitting display device and its manufacturing method capable of performing self-focusing so that electrons tunneled between a scan electrode and a data electrode do not spread is disclosed. A round groove is formed at a predetermined region of a lower substrate where a cell is formed so that tunneled electrons do not spread and have a curved line locus. Accordingly, electron beam distortion is prevented, and brightness and efficiency can be improved.
Abstract:
A driving device of a flat display panel and its method are disclosed. The driving device includes a scan driving unit for applying scan pulses to both ends of each scan line of the flat display panel
Abstract:
An apparatus and method for driving a field emission display (FED) device are disclosed. By applying a voltage to a specific electrode (data electrode or mesh electrode) of the FED device during a blanking time of a display frame of an FED, electric charges unnecessarily charged in the FED device can be removed.
Abstract:
The present invention discloses a field emission device which can improve luminance and uniformity of screen by enabling electrons emitted from a plurality of carbon nano tubes to evenly excite the whole surface of a fluorescent substance. The field emission device includes a bottom gate electrode formed on a bottom substrate, an insulation layer being formed on the bottom gate electrode, and having a via hole partially exposing the bottom gate electrode, a first top gate electrode formed on the insulation layer, and coupled to the bottom gate electrode exposed through the via hole, a first cathode electrode formed on the insulation layer on the same plane surface as that of the first top gate electrode, and a first carbon nano tube formed on the left side of the first cathode electrode, and a second carbon nano tube formed on the right side of the first cathode electrode.
Abstract:
Energy recovery sustain circuit for an AC plasma display panel, is disclosed, having first, and second energy recovery sustain driving parts for supplying sustain pulses of Vo volt to a load capacitor in the AC plasma display panel, each including an output terminal, an inductor, a first capacitor, a second capacitor, first capacitor discharging means, second capacitor discharging means, first capacitor charging means, second capacitor charging means, first to fourth voltage sustaining means, thereby, since a plurality of capacitors are provided for temporary storage of a discharge energy of the load capacitor, which is charged back to the load capacitor many times, the present invention has an advantage in that a power consumption of the panel can be reduced than the background art panel in a sustained driving, the system giving and taking charge and discharge energies to/from the load capacitor provided in the present invention allows linear compensation of the capacitance of the load capacitor, and as the present invention provides a rising time of the sustain pulse of a maximum resonant point to the panel regardless of the variation of the capacitance of the load capacitor, an energy loss can be reduced and a stable sustained driving of the panel is possible.