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Plasma display panel

A display panel, plasma technology, applied in solid cathode components, discharge tubes, electrical components, etc., can solve problems such as image quality damage and poor dielectric layer insulation

Inactive Publication Date: 2009-09-30
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, as the number of scanning lines increases, the yellowing of the glass substrate or the generation of air bubbles in the dielectric layer becomes more significant, the image quality is significantly impaired and the problems of poor insulation of the dielectric layer become significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0020] figure 1 It is a perspective view showing the structure of the PDP according to the embodiment of the present invention. The basic structure of the PDP is the same as that of a general AC surface discharge type PDP. Such as figure 1 As shown, in the PDP1, the front panel 2 composed of the front glass substrate 3 and the like and the rear panel 10 composed of the rear glass substrate 11 and the like are arranged facing each other, and the outer peripheral part of the PDP1 is hermetically sealed by a sealing material made of glass frit. (glass frit) and other components. In the discharge space 16 inside the sealed PDP 1 , discharge gases such as Ne and Xe are sealed at a pressure of 55 kPa to 80 kPa.

[0021] On front glass substrate 3 of front panel 2, a pair of stripe-shaped display electrodes 6 and black stripes (light shielding layers) 7 composed of scan electrodes 4 and sustain electrodes 5 are arranged in parallel to each other. On front glass substrate 3 , diel...

Embodiment 1

[0066] Table 1 shows the material composition of the dielectric glass constituting the dielectric layer 8 .

[0067] 【Table 1】

[0068] Dielectric glass

Glass composition (Mo

you%)

Example

1

Example

2

comparative example

1

comparative example

2

comparative example

3

comparative example

4

comparative example

5

comparative example

6

comparative example

7

comparative example

8

comparative example

9 Bi 2 o 3 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ CaO 3.0％ 3.0％ 4.0％ 2.0％ 1.0％ 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ 3.0％ BaO 1.0％ 1.0％ - 2.0％ 3.0％ 1.0％ 1.0％ 1.0％ 1.0％ 1.0％ 1.0％ K 2 o 5.0％ 5.0％ 7.0％ 5.0％ 5.0％ 5.0％ - 2.0％ 5.0％ 5.0％ 5.0％ Na 2 o 2.0％ 2.0％ - 2.0％ 2.0％ 2.0％ 2.0％ 4.0％ 2.0％ 2.0％ 2.0％ Li 2 o - - - - - - 5.0％ 1.0％ - - - CoO 0.1％ 0.1％ - - - 0.2％ 0.1％ ...

Embodiment 2

[0087] Next, against Bi 2 o 3 content and R 2 O content, especially for yellowing is illustrated in the examples discussed in detail.

[0088] Table 3 shows the material composition of the dielectric glass constituting the dielectric layer 8 in Example 2. In addition, Table 3 shows that b was also measured with a color meter (CR-300 manufactured by Kanica Minolta Co., Ltd.) as in Example 1. * value result. Moreover, yellowing has an impact on the display performance of PDP b * The standard value is 3. The larger this value is, the more conspicuous the yellowing will be, and the color temperature will be lowered as a PDP, which is not preferable.

[0089] 【table 3】

[0090] Example 1 Example 2 Example 3 Comparative example 1 Comparative example 2 Bi 2 o 3

Dielectric composition

(mol%)

3.1％

1.0％

3.7％

0％

5.2％ R 2 o

Dielectric composition

(mol%)

8.6％

7.8％ ...

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Abstract

Disclosed is a PDP wherein a front plate obtained by forming a display electrode, a dielectric layer and a protective layer on a glass substrate and a back plate obtained by forming an electrode, a partition wall and a phosphor layer on a substrate are so arranged as to face each other and a discharge space is formed by hermetically sealing the edges of the plates. The dielectric layer of the front plate contains Bi2O3, while further containing two or more kinds of R2O (wherein R represents one element selected from Li, Na and K).

Description

technical field [0001] The present invention relates to a plasma display panel used in display devices and the like. Background technique [0002] Plasma display panels (hereinafter referred to as PDPs) are commercialized as 100-inch-class televisions and the like because they can achieve higher definition and larger screen sizes. In recent years, the application of PDP to high-definition televisions, which has more than twice the number of scanning lines (number of scanning lines) compared with the existing NTSC system, is being promoted, and lead-free components are required in consideration of environmental issues. PDPs are also commercialized. [0003] A PDP basically consists of a front panel and a rear panel. The front panel consists of a glass substrate of sodium borosilicate glass manufactured by a float method, and a display composed of stripe-shaped transparent electrodes and bus electrodes formed on one main surface of the glass substrate. An electrode, a diele...

Claims

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Application Information

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IPC IPC(8): H01J11/02H01J17/04H01J17/49
Inventor 森冈一裕河濑觉斋藤唯吉田信介三舩达雄
Owner PANASONIC CORP
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