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Plasma display device

A display device, plasma technology, applied in identification devices, static indicators, instruments, etc., can solve problems such as adding scan drivers

Inactive Publication Date: 2006-09-27
FUJITSU HITACHI PLASMA DISPLAY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the output of the scan driver is not excessive, it is necessary to increase the output of the scan driver due to the scan electrodes in the non-display area.

Method used

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no. 1 approach

[0059] Figure 12 A configuration example of the plasma display device according to the first embodiment of the present invention is shown. The Y electrode Y1 of the uppermost display row and the Y electrode Yn of the lowermost display row of the display area 22 are connected to the Y electrode drive circuit 18, which is consistent with figure 1 different. other aspects with figure 1 same. figure 2 with image 3 The instructions are the same as above.

[0060] Figure 9 is showing Figure 12 The circuit diagram of the structural example of the Y drive circuit 18 and the scan driver SD, the following describes its relationship with Figure 7 difference. other aspects with Figure 7same. The anode of the diode D5 is connected to the Y electrode Y1, and the cathode thereof is connected to the edge Y electrode Ya. The anode of the diode D6 is connected to the edge Y electrode Ya, and the cathode thereof is connected to the first potential line VDH. The switch SW10 is ...

no. 2 approach

[0075] Figure 13 It is a circuit diagram showing a configuration example of the Y drive circuit 18 and the scan driver SD according to the second embodiment of the present invention. Figure 9 the difference. other aspects with Figure 9 same. The scan driver SD2 has the same Figure 9 The scan driver SD1 has the same structure and is connected in parallel with the scan driver SD1, and the connection point of the switches SW1 and SW2 is connected to the Y electrode Y2. Furthermore, the anode of the diode D7 is connected to the Y electrode Y2, and the cathode is connected to the edge Y electrode Ya.

[0076] exist Figure 9 In the circuit of the first embodiment shown, when a scan pulse is applied to the Y electrode Y1, the switch SW2 is turned on, and the scan pulse is applied to the Y electrode Y1. At this time, the potential of the edge Y electrode Ya decreases due to the parasitic capacitance of the diode D5. The decreased voltage is determined by the ratio of the c...

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Abstract

A plasma display device is configured as having a first display line containing a first scanning electrode in a display region; a first non-display line including a second scanning electrode outside the display region; a first potential line capable of applying a first potential of a scanning pulse, the scanning pulse being composed of the first potential and a second potential; a second potential line capable of applying the second potential of the scanning pulse; a first switch connected between the first potential line and the first scanning electrode; a second switch connected between the second potential line and the first scanning electrode; and a first rectifying element connected between the first and second scanning electrodes, so as to make the plasma display device possible to generate voltage for the scanning electrode, without supplying any scanning pulse to the scanning electrodes outside the display region.

Description

technical field [0001] The present invention relates to plasma display devices. Background technique [0002] A plasma display panel has a display area composed of a plurality of display lines. According to the structure of the plasma display device, since the structure of the uppermost display line and the lowermost display line of the display area is the same as that of the central part, it is necessary to provide non-display areas with the same structure as the display area above and below the display area. The non-display area is an area not to be displayed. [0003] In addition, Patent Document 1 discloses a plasma display panel capable of reducing false discharges occurring in a non-display region near a display region and enabling stable discharge in a display region. [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2003-308782. [0005] The problem to be solved by the invention [0006] It is necessary to provide scan pulses to the scan elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/28G09G3/20H01J17/49G09F9/313G09G3/291G09G3/288G09G3/292G09G3/293G09G3/294G09G3/296G09G3/298G09G3/299
CPCG09G3/293G09G3/296G09G2310/0232
Inventor 金泽义一横山敦史
Owner FUJITSU HITACHI PLASMA DISPLAY LTD
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