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Plasma display device and driving method thereof
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A display device, plasma technology, applied in identification devices, static indicators, televisions, etc., can solve problems such as the increase of circuit components
Inactive Publication Date: 2008-07-30
HITACHI LTD
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Problems solved by technology
This plasma display device needs transistors Slu and Sld for starting parallel resonance, so there is a disadvantage of increasing the number of circuit elements
[0022] In addition, there is also a disadvantage that a charging / discharging circuit section 2601 including a path through which a resonance current flows is required to be provided between the driving circuits 4 and 5.
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no. 1 Embodiment approach
[0071] figure 1 It is a schematic diagram showing a configuration example of the plasma display device according to the first embodiment of the present invention. The control circuit 7 controls the X electrode drive circuit 4 , the Y electrode drive circuit 5 , and the address electrode drive circuit 6 . The X-electrode driving circuit 4 supplies a predetermined voltage to the plurality of X-electrodes X1, X2, . . . . Hereinafter, each of the X electrodes X1, X2, . The Y electrode drive circuit 5 supplies a predetermined voltage to a plurality of Y (scan) electrodes Y1, Y2, . . . . Hereinafter, each of the Y electrodes Y1, Y2, . Address electrode drive circuit 6 supplies a predetermined voltage to a plurality of address electrodes A1, A2, . . . . Hereinafter, each address electrode A1, A2, .
[0072] In the plasma display panel 3 , Y electrodes Yi and X electrodes Xi form rows extending in parallel in the horizontal direction, and address electrodes Aj form columns exten...
no. 2 Embodiment approach
[0102] Figure 10 It is a circuit diagram showing a configuration example of the X electrode driving circuit 4 , the Y electrode driving circuit 5 , and the address electrode driving circuit 6 in the second embodiment of the present invention. Hereinafter, differences between the present embodiment and the first embodiment will be described. Figure 10 and Figure 4 In comparison, the diodes Dsu1 and Dsu2 are eliminated, and the diodes Dsd1 and Dsd2 are added.
[0103] A series circuit of the switching element Ssd1 and the diode Dsd1 constitutes a switching unit, and is connected between the X electrode Xi and a terminal of the ground potential GND. The switching element Ssd1 is, for example, an n-channel field effect transistor. The transistor Ssd1 has a parasitic diode, the gate is connected to the voltage CD1, the drain is connected to the X electrode Xi side, and the source is connected to the terminal side of the ground potential GND. The anode of the parasitic diode ...
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Abstract
There is provided a method for driving a plasma display device characterized by including a first step of turning off first and fourth switching devices and turning on second and third switching devices, a second step of turning on the first switching device and turning off the second to the fourth switching devices after the first step and a third step of turning on the first and the fourth switching devices and turning off the second and the third switching devices after the second step.
Description
technical field [0001] The invention relates to a plasma display device and a driving method thereof. Background technique [0002] Figure 16 17 is a schematic circuit diagram showing a first configuration example of the plasma display device, and FIG. 17 is a timing chart showing its driving method (see Patent Document 1 described later). The voltage VXi is the voltage of the electrode Xi, the current IL1 is the current flowing through the coil L1, the voltage VYi is the voltage of the electrode Yi, and the current IL2 is the current flowing through the coil L2. The voltage Vxy is the voltage across the electrodes Xi and Yi, represented by the voltage VXi-VYi. [0003] The electrodes Xi and Yi are electrodes for discharging. The capacity Cp is the capacitance between the electrodes Xi and Yi. The drive circuit 4 supplies a voltage VXi to the electrode Xi. The drive circuit 5 supplies a voltage VYi to the electrode Yi. [0004] At time t1, only the voltages LU1 and CD2...
Claims
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Application Information
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