摘要:
A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a plasma display panel including a first scan electrode, a second scan electrode, a first sustain electrode corresponding to the first scan electrode and a second sustain electrode corresponding to the second scan electrode, a scan driver and a sustain driver. The scan driver supplies a set-down pulse falling from a first voltage to a second voltage to the first and second scan electrodes during a set-down period, and supplies a first scan pulse to the first scan electrode and a second scan pulse to the second scan electrode during an address period. The sustain driver forms a gradually falling voltage in the second sustain electrode during at least a portion of a total period of time when the set-down pulse is supplied.
摘要:
A plasma display apparatus is provided. The plasma display apparatus comprises a data driver comprising a data arranging unit. Accordingly, the manufacturing cost of the plasma display apparatus decreases. Further, a signal loss and a noise according to data transmission decrease.
摘要:
Disclosed herein are a terrestrial digital multimedia broadcasting (DMB) tuner of a low intermediate frequency (IF) structure which is applied to a mobile communication terminal, such as a mobile phone, and an image rejection mixer applied thereto. In order to improve inter-channel attenuation characteristics, the image rejection mixer locates an oscillation frequency above or beneath the frequency of a target signal to include an image signal of the target signal in a terrestrial DMB band, mixes a radio frequency (RF) signal with the oscillation frequency, and outputs the resulting IF signals to a polyphase filter in a selected arrangement. Because the image signal of the target signal is included in the terrestrial DMB band, the image rejection mixer can satisfy the inter-channel attenuation characteristics without a troublesome or complex design.
摘要:
The present invention relates to a plasma display apparatus including an energy recovery circuit capable of maximizing driving efficiency, and driving method thereof. The plasma display apparatus of the present invention includes a plasma display panel having an electrode, an energy supply and recovery unit for dividing a source voltage source to supply the energy of a first voltage higher than a reference voltage and to supply the energy of a second voltage lower than the reference voltage, a path select controller for establishing a path so that the energy of the first voltage is supplied to the electrode through resonance and establishing a path so that the energy of the second voltage is recovered from the electrode through resonance, and a voltage sustain unit for applying a third voltage to the electrode after the energy of the first voltage has been supplied to the electrode through resonance and applying a fourth voltage to the electrode after the energy of the second voltage has been recovered from the electrode through resonance. According to the present invention, the energy supply and recovery unit supplies energy greater than the reference voltage and recovers energy lower than the reference voltage. Accordingly, driving efficiency can be improved.
摘要:
Disclosed is a plasma display apparatus and a method of driving the same. The plasma display apparatus and method of driving the same, in which a plasma display panel displays images by constituting a plurality of sub-fields including a reset period in one frame, are characterized in that: gray levels are controlled by applying a sustain voltage supplied during the sustain period of a specific one of the sub-fields at a different time than the sustain voltage supplied during the sustain period of the other sub-fields.
摘要:
A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a plasma display panel in which a plurality of scan electrodes, sustain electrodes, and address electrodes are formed on substrates to form a discharge cell and electrode driving parts for driving the scan electrodes, the sustain electrodes, and the address electrodes. The plurality of scan electrodes are divided into a plurality of scan electrode groups and the driving parts are controlled such that a voltage different from a scan bias voltage is applied for a predetermined time in the address period of one or more scan electrode groups among the plurality of scan electrode groups.
摘要:
Disclosed herein is an apparatus for driving a plasma display panel in which a gray scale inversion phenomenon can be prevented. According to the present invention, the apparatus for driving the PDP includes an error diffusion unit for diffusing error of data received from an inverse gamma correction unit, a gray scale inversion check unit connected to the inverse gamma correction unit, for checking whether a gray scale value of the data received from the inverse gamma correction unit is a gray scale value where a gray scale inversion phenomenon is generated, and generating a 1-bit control signal according to the check result, an adder disposed between the error diffusion unit and the gray scale inversion check unit, for adding the 1-bit control signal to lower bits of the data received from the error diffusion unit, and a dithering unit for performing dithering by using the lower bits received from the adder. Therefore, when dithering is performed on data where gray scale inversion is generated, a gray scale value can be improved by adding 1 to lowest bits of the data. It is thus possible to prevent the gray scale inversion phenomenon.
摘要:
The present invention is directed to a number of improvements in methods for reliability simulations in aged circuits whose operation has been degraded through hot-carrier or other effects. A plurality of different circuit stress times can be simulated within a single run. Different aging criteria may be used for different circuit blocks, circuit block types, devices, device models and device types. The user may specify the degradation of selected circuit blocks, circuit block types, devices, device models and device types independently of the simulation. Device degradation can be characterized in tables. Continuous degradation levels can be quantized. Techniques are also described for representing the aged device in the netlist as the fresh device augmented with a plurality of independent current sources connected between its terminals to mimic the effects of aging in the device. The use of device model cards with age parameters is also described. To further improve the circuit reliability simulation, a gradual or multi-step aging is used instead of the standard one step aging process. Many of these features can be embedded within the circuit simulator. A user data interface is also presented to implement these techniques and further allow users to enter their device models not presented in the simulator. For example, a proprietary model of, say, the substrate current in an NMOS could used be with a SPICE simulator employing a different model to simulate the aging of the circuit.
摘要:
A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel, and an energy recovery circuit that supplies an energy to the plasma display panel using one inductor and recovers an energy from the plasma display panel using a plurality of inductors. Inductance in an energy supply path for supplying the energy to the plasma display panel is less than inductance in an energy recovery path for recovering the energy from the plasma display panel.
摘要:
A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel including a scan electrode, and a scan driver. The scan driver charges a first capacitor to a first voltage charged to a source capacitor, and supplies a setup pulse having a voltage equal to a sum of the first voltage charged to the first capacitor and a setup voltage to the scan electrode.