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Plasma display device

一种显示装置、等离子的技术，应用在静态指示器、仪器等方向，能够解决图像质量降低等问题

Inactive Publication Date: 2012-11-07
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The repetition of this gradation limitation becomes flickering on the displayed image, and there is also a problem of bringing about degradation in image quality

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0076] figure 1 It is an exploded perspective view showing main parts of panel 10 in Embodiment 1 of the present invention. The panel 10 is configured such that a front substrate 21 and a rear substrate 31 made of glass are opposed to each other, and a discharge space is formed therebetween. Scan electrodes 22 and sustain electrodes 23 constituting display electrode pairs 24 are formed in parallel on front substrate 21 in pairs. 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 . A plurality of data electrodes 32 are formed on rear substrate 31 , and dielectric layer 33 is formed so as to cover data electrodes 32 . Parallel grid-shaped partition walls 34 are provided on the dielectric layer 33 . Phosphor layer 35 is provided on the surface of dielectric layer 33 and the side surfaces of partition walls 34 . In addition, front substrate 21 and rear substrate 31 ar...

Embodiment approach 2

[0137] Figure 8 It is a circuit block diagram of the plasma display device in Embodiment 2 of the present invention. The plasma display device of this embodiment includes a panel 10, an image signal conversion circuit 400, a data electrode drive circuit 52, a scan electrode drive circuit 53, a sustain electrode drive circuit 54, a timing generation circuit 55, and a data electrode load calculation circuit 60. The temperature calculation circuit 61 of the part, the power calculation circuit 62 as the power calculation part, the temperature change detection circuit 63 as the temperature change detection part, the power change detection circuit 64 as the power change detection part, and the power supply required for each circuit block. Power circuit (not shown). Figure 8 , added with Figure 4 The constituent elements of the same symbol have the same Figure 4 have the same function, and detailed explanations are omitted.

[0138] Figure 8 In the same way as the image sig...

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PUM

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Abstract

A plasma display device is provided with an image signal conversion circuit (40) for converting an image signal into image data; a data electrode driving circuit (52) for driving a data electrode based on the image data; a power calculating circuit (62) for calculating power consumption of the data electrode driving circuit (52) based on the image data; and a temperature calculating circuit (61) for calculating temperature of the data electrode driving circuit (52) based on the image data. The image signal conversion circuit (40) converts the image signal into image data which reduces power consumption of the data electrode driving circuit (52), in the case where at least a power calculation value (PE) calculated by the power calculating circuit (62) exceeds a prescribed power threshold or a temperature calculation value (TE) calculated by the temperature calculating circuit (61) exceeds a prescribed temperature threshold value.

Description

technical field [0001] The present invention relates to plasma display devices for wall-mounted televisions and large monitors. Background technique [0002] In a plasma display panel (hereinafter, simply referred to as a "panel") typified by an image display device having a plurality of pixels arranged in a planar manner, a plurality of discharge cells are formed as pixels between a front panel and a rear panel arranged oppositely. On the front panel, a plurality of display electrode pairs consisting of a scan electrode and a sustain electrode are formed parallel to each other on a front glass substrate, and a dielectric layer and a protective layer are formed to cover these display electrode pairs. On the back panel, a plurality of parallel data electrodes and a dielectric layer are respectively formed on the rear glass substrate to cover these data electrodes and a plurality of partition walls parallel to the data electrodes on it, and fluorescent light is formed on the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28G09G3/20G09G3/288
CPCG09G2320/0247G09G2360/16G09G2320/041G09G2330/021G09G2320/0626G09G3/288G09G3/2022G09G2320/0271G09G3/296
Inventor 山下武泽一树山本浩子
Owner PANASONIC CORP