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Plasma display device, plasma display system, and method of driving a plasma display panel

A display panel and display device technology, applied in stereoscopic systems, static indicators, instruments, etc., can solve the problems of loss of gray scale, loss of gray scale linearity, driving impedance and easy increase of luminous brightness, etc.

Inactive Publication Date: 2013-04-03
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, if the emission luminance generated by one sustain discharge varies between subfields, there is a concern that the linearity of the gradation will be impaired.
[0023] In addition, in a panel whose driving impedance increases due to a larger screen size and higher definition of the panel, since the difference in driving impedance between subfields is likely to increase and the difference in light emission luminance between subfields is likely to occur, there is a risk that Tendency to damage linearity of gray scale

Method used

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  • Plasma display device, plasma display system, and method of driving a plasma display panel
  • Plasma display device, plasma display system, and method of driving a plasma display panel
  • Plasma display device, plasma display system, and method of driving a plasma display panel

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Embodiment approach 1

[0064] figure 1 It is an exploded perspective view showing the structure of panel 10 employed in the plasma display device according to Embodiment 1 of the present invention. A plurality of display electrode pairs 24 including scan electrodes 22 and sustain electrodes 23 are formed on front substrate 21 made of glass. Furthermore, dielectric layer 25 is formed so as to cover scan electrodes 22 and sustain electrodes 23 , and protective layer 26 is formed on dielectric layer 25 .

[0065] In order to reduce the discharge start voltage in the discharge cell, the protective layer 26 has a practical effect as a panel material, and has a large secondary electron emission coefficient and durability when neon (Ne) and xenon (Xe) gases are enclosed. Formed with superior magnesium oxide (MgO) as the main component material.

[0066] A plurality of data electrodes 32 are formed on the rear substrate 31 , and a dielectric layer 33 is formed to cover the data electrodes 32 , and further...

Embodiment approach 2

[0306] The larger screen size and higher definition of the panel 10 increase the inter-electrode capacitance Cp of the panel 10 . An increase in the inter-electrode capacitance Cp increases reactive power that is ineffectively consumed without contributing to light emission when the panel 10 is driven, and is one of the causes of increased power consumption.

[0307] In addition, in the panel 10 whose screen size has been enlarged and the definition has been increased, and the drive impedance has increased, waveform distortion such as ringing tends to occur in the drive waveform. For this reason, variation in discharge tends to increase, and luminance variation called luminance unevenness tends to occur.

[0308] At this time, for example, the period during which the power recovery circuit 61 and the power recovery circuit 81 operate to raise the sustain pulse (hereinafter referred to as "rising period") and the period during which the power recovery circuit 61 and the power r...

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Abstract

The invention provides a plasma display device, a plasma display system, and a method of driving a plasma display panel. The disclosed plasma display device achieves good image display quality when displaying 3D images on a plasma display panel (10). To that end, a drive circuit is provided with a sustain pulse generation circuits (60, 80), a control signal generation circuit (45) which generates both a timing signal for opening and closing a shutter and a control signal for controlling the sustain pulse generation circuits (60, 80), a total cell lighting ratio detection circuit (46) for each subfield the total cell lighting ratio, and a partial lighting ratio detection circuit (47) which detects for each subfield the partial lighting ratio in each of multiple areas set as image display areas of the plasma display panel (10). Further, in each subfield, the number of sustain pulses generated, which is set on the basis of an image signal and a brightness weight, is corrected by the drive circuit in accordance with the total cell lighting ratio and the partial lighting ratio.

Description

technical field [0001] The present invention relates to a plasma display device, a plasma display system, and a driving method for a plasma display panel capable of stereoscopically viewing a stereoscopic image composed of right-eye images and left-eye images alternately displayed on a plasma display panel using shutter glasses. Background technique [0002] A typical AC surface discharge panel as a plasma display panel (hereinafter abbreviated as "panel") has a plurality of discharge cells formed between a front substrate and a rear substrate that are arranged to face each other. In the front substrate, a plurality of display electrode pairs are formed parallel to each other on the glass substrate on the front side, and the display electrode pairs are composed of a pair of scan electrodes and sustain electrodes. Furthermore, a dielectric layer and a protective layer are formed so as to cover those display electrode pairs. [0003] In the rear substrate, a plurality of para...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/291H04N13/04G09G3/292G09G3/294G09G3/296
CPCG09G3/291G09G3/2965G09G3/292G09G3/28H04N13/0497G09G3/294H04N13/0438G09G2310/066H04N13/341H04N13/398
Inventor 折口贵彦坂田一朗富冈直之石塚光洋
Owner PANASONIC CORP