Abstract: The semiconductor device includes a plurality of semiconductor packages stacked on one another. Each semiconductor package includes a main current electrode terminal disposed in a case section of the semiconductor package, the main current electrode terminal being exposed outside the case section to be electrically connected to an external power supply. The main current electrode terminal extends in the stack direction of the semiconductor packages, and embedded in the case section at a surface portion thereof facing an external surface of the case section. Both end surface portions of the main current electrode terminal in the stack direction respectively reach end surface portions of the case section in the stack direction so that the main current electrode terminals of each adjacent two of the semiconductor packages are in contact with each other when the semiconductor packages are stacked on one another in the stack direction.

Abstract: The semiconductor device has a unit stack body including a plurality of units stacked on one another. Each unit includes a power terminal constituted of a lead part and a connection part. The connection part is formed with a projection and a recess. When the units are stacked on one another, the projection of one unit is fitted to the recess of the adjacent unit, so that the power terminals of the respective unit are connected to one another.

Abstract: The semiconductor device includes a plurality of semiconductor packages stacked on one another. Each semiconductor package includes a main current electrode terminal disposed in a case section of the semiconductor package, the main current electrode terminal being exposed outside the case section to be electrically connected to an external power supply. The main current electrode terminal extends in the stack direction of the semiconductor packages, and embedded in the case section at a surface portion thereof facing an external surface of the case section. Both end surface portions of the main current electrode terminal in the stack direction respectively reach end surface portions of the case section in the stack direction so that the main current electrode terminals of each adjacent two of the semiconductor packages are in contact with each other when the semiconductor packages are stacked on one another in the stack direction.

Abstract: The semiconductor device has a unit stack body including a plurality of units stacked on one another. Each unit includes a power terminal constituted of a lead part and a connection part. The connection part is formed with a projection and a recess. When the units are stacked on one another, the projection of one unit is fitted to the recess of the adjacent unit, so that the power terminals of the respective unit are connected to one another.

Abstract: A plasma display device which can provide stable discharging operations irrespective of variations in temperature. A load capacitor of a plasma display panel is charged or discharged via a switching element and a resistor element with one end to which a predetermined potential is supplied thereby creating a gradually varying waveform of a drive pulse, in which the switching element is controlled by an operational amplifier. That is, the operational amplifier controls the switching element based on a control voltage according to the difference between the potential at the other end of the resistor element and the potential of a gradually varying waveform generation signal for promoting the gradually varying waveform to be generated.

Abstract: It is an object of the invention to provide an improved flat panel type display apparatus allowing a low cost and a simplified wiring process. First and second terminal groups adjacent to each other as well as a third terminal group separated from the first and second terminal groups and are formed on the outside edge of a rear glass substrate of display section main body of the display apparatus. The first terminal group is comprised of connection terminals formed with wiring patterns connected to display electrodes. The second and third terminal groups and are connected to each other by predetermined wiring patterns. On connection end of TCP equipped with a driver IC, there are formed connecting terminals corresponding to the first and second terminal groups.

Abstract: Application timing of driving pulses for a PDP is controlled so that a flow direction of a discharge current which flows between a first row electrode and a second row electrode of each of row electrode pairs belonging to odd numbered display lines due to the electrical discharge is opposite to a flow direction of a discharge current which flows between a first row electrode and a second row electrode of each of row electrode pairs belonging to even numbered display lines. Furthermore, an impedance of a current channel for the discharge current which flows between the row electrode pair belonging to the odd numbered display line and the electrode driving means is made substantially the same as an impedance of a current channel for the discharge current which flows between the row electrode pair belonging to the even numbered display line and the electrode driving means.

Abstract: A drive apparatus for driving a display panel having a plurality of row electrode groups each of which includes a plurality of row electrodes, and a plurality of column electrodes arrayed in the direction intersecting with each row electrode of the plurality of row electrode groups to form display cells at the intersection points. The drive apparatus comprises a controller for generating a control signal for each of the row electrode groups, and a row electrode drive circuit for generating a drive pulse in response to the control signal and supplying the pulse to each row electrode of each of the row electrode groups. The control signal is delayed when being supplied to the drive circuit for each of the row electrode groups.

Abstract: A display panel driving circuit for driving a display panel, in which the electric power consumption at the time of the switching can be reduced. The display panel driving apparatus allows the use of a switching device of a low withstanding voltage. A transition voltage generating circuit for shifting a voltage of a DC power source of the driving apparatus is provided. A resonance relay circuit is provided for generating a pulse having a leading edge which rises gradually and a trailing edge which decreases gradually based on the transition voltage and supplying it as a drive pulse to the display panel. A plurality of resonance circuits for driving and exciting capacitive devices of the display panel are provided in a range of different driving potentials. The drive pulse having the leading edge which rises gradually and the trailing edge which decreases gradually is generated by switching each of the resonance circuits by the switching device to make them operative sequentially.

Abstract: A drive apparatus for applying first and second drive pulses to row electrodes to drive a display panel having the row electrodes, column electrodes arranged to intersect the row electrodes, and capacitive light-emitting elements each disposed at each point of intersection of the row electrodes and the column electrodes. The drive apparatus includes a clamping circuit and a masking circuit which are formed in a module.

Abstract: The plasma display panel (PDP) unit of the present invention comprises a PDP drive circuit for supplying drive power to a display panel and a control portion for controlling the drive power. The control portion includes a power correction value generating circuit for generating a power correction value and the PDP drive circuit contains a voltage adjusting circuit for outputting the drive power based on the power correction value.

Abstract: A plasma display apparatus which can surely prevent an overcurrent flowing in a driver for driving electrodes of a plasma display panel. A power source is shut off when an internal short-circuit state of a column electrode driver is detected based on a current or an electric potential on a power line in a column electrode driver detected during a light emission sustaining period.

Abstract: A driving apparatus for a display panel capable of reducing a circuit scale while suppressing the drop of a contrast includes a scan driver having a first power source for generating a first voltage, generating a scan pulse for bringing the capacitive light emission device to either an ON state or an OFF state based on the first voltage, and applying the scan pulse to the row electrode, a sustain driver having a second power source for generating a second voltage, generating a sustain pulse for allowing the capacitive light emission device set to the ON state to emit light based on the second voltage, and applying the scan pulse to the row electrode, and a reset driver generating a reset pulse for initializing the capacitive light emission device based on the sum of the first voltage and the second voltage, and applying the reset pulse to the row electrode.

Abstract: A plasma display panel driving method and a plasma display apparatus which can reduce power consumption. A selective discharge is generated at least once for selectively setting each of discharge cells of a plasma display panel either to a lit discharge cell state or to an unlit discharge cell state in accordance with a video signal. In this case, the number of times the selective discharge is generated is changed in accordance with the power consumption associated with the selective discharge.

Abstract: The present invention provides a plasma display driving device capable of enhancing contrast by adjusting in accordance with the ambient illuminance of a plasma display panel the level change rate at the leading edge portion of a resetting pulse for causing the occurrence of a resetting discharge, which initializes all the discharge cells of the plasma display panel. The present invention also provides a plasma display panel driving method for enabling power consumption to be held in check by changing the number of sustaining pulses per unit time to be applied to each discharge cell in an emission sustaining step in accordance with the ambient illuminance of the plasma display panel, and, in addition, by adjusting the pulse width of at the least one of the above-mentioned sustaining pulse and scanning pulse for pixel data writing.

Abstract: The present invention provides a plasma display driving device capable of enhancing contrast by adjusting in accordance with the ambient illuminance of a plasma display panel the level change rate at the leading edge portion of a resetting pulse for causing the occurrence of a resetting discharge, which initializes all the discharge cells of the plasma display panel. The present invention also provides a plasma display panel driving method for enabling power consumption to be held in check by changing the number of sustaining pulses per unit time to be applied to each discharge cell in an emission sustaining step in accordance with the ambient illuminance of the plasma display panel, and, in addition, by adjusting the pulse width of at the least one of the above-mentioned sustaining pulse and scanning pulse for pixel data writing.

Abstract: It is an object of the invention to provide an improved flat panel type display apparatus allowing a low cost and a simplified wiring process. First and second terminal groups adjacent to each other as well as a third terminal group separated from the first and second terminal groups and are formed on the outside edge of a rear glass substrate of display section main body of the display apparatus. The first terminal group is comprised of connection terminals formed with wiring patterns connected to display electrodes. The second and third terminal groups and are connected to each other by predetermined wiring patterns. On connection end of TCP equipped with a driver IC, there are formed connecting terminals corresponding to the first and second terminal groups.

Abstract: A drive apparatus for applying first and second drive pulses to row electrodes to drive a display panel having the row electrodes, column electrodes arranged to intersect the row electrodes, and capacitive light-emitting elements each disposed at each point of intersection of the row electrodes and the column electrodes. The drive apparatus includes a clamping circuit and a masking circuit which are formed in a module.

Abstract: A driving apparatus for a display panel capable of reducing a circuit scale while suppressing the drop of a contrast includes a scan driver having a first power source for generating a first voltage, generating a scan pulse for bringing the capacitive light emission device to either one of an ON state and an OFF state based on the first voltage, and applying the scan pulse to the row electrode, a sustain driver having a second power source for generating a second voltage, generating a sustain pulse for allowing the capacitive light emission device set to the ON state to emit light based on the second voltage, and applying the scan pulse to the row electrode, and a reset driver generating a reset pulse for initializing the state of the capacitive light emission device based on the sum of the first voltage generated by the first power source and the second voltage generated by the second power source, and applying the reset pulse to the row electrode.

Abstract: The present invention provides a plasma display driving device capable of enhancing contrast by adjusting in accordance with the ambient illuminance of a plasma display panel the level change rate at the leading edge portion of a resetting pulse for causing the occurrence of a resetting discharge, which initializes all the discharge cells of the plasma display panel. The present invention also provides a plasma display panel driving method for enabling power consumption to be held in check by changing the number of sustaining pulses per unit time to be applied to each discharge cell in an emission sustaining step in accordance with the ambient illuminance of the plasma display panel, and, in addition, by adjusting the pulse width of at the least one of the above-mentioned sustaining pulse and scanning pulse for pixel data writing.