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Plasma display panel

A plasma display, panel technology, applied in the direction of alternating current plasma display panels, discharge tubes, electrical components, etc.

Inactive Publication Date: 2011-04-13
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase in operating voltage is an obstacle to driving PDPs with low power

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0055] (Example of PDP configuration)

[0056] figure 1 It is a schematic cross-sectional view along the xz plane of PDP1 according to Embodiment 1 of the present invention. This PDP1 removes the structure around the surface layer 8, which is generally the same as the existing structure ( Figure 4 )same.

[0057] The PDP 1 is described here as the AC type of the NTSC standard example of the 42-inch class, but of course the present invention can also be applied to other standard examples such as XGA and SXGA. As a high-definition PDP having a resolution of HD (High Definition: High Definition) or higher, for example, the following specifications can be exemplified. When the panel sizes are 37, 42, and 50 inches, they can be set to 1024×720 (number of pixels), 1024×768 (number of pixels), and 1366×768 (number of pixels) in the same order. Also, higher resolution panels than this HD panel can be included. As a panel having a resolution of HD or higher, a full HD panel havi...

Embodiment approach 2

[0101] Regarding Embodiment 2 of the present invention, differences from Embodiment 1 will be mainly described. Image 6 It is a cross-sectional view showing the structure of the PDP1a of the second embodiment.

[0102]The basic structure of PDP1a is the same as that of PDP1, but it is characterized in that the surface layer 8a is formed by dispersing MgO fine particles 16 having high initial electron emission characteristics on the surface of the base layer 8. . As an example, the dispersion density of the MgO microparticles 16 can be set so that the underlayer 8 cannot be seen directly when the surface layer 8a in the discharge cell 20 is viewed from the Z direction, but it is not limited to such a dispersion density. . For example, it may be partially provided on the surface of the base layer 8 . In this case, as an example, MgO microparticles 16 may be locally provided only at positions corresponding to display electrode pairs 6 .

[0103] In addition, in Image 6 In or...

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PUM

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Abstract

A PDP (Plasma Display Panel) is provided which includes an improved surface layer and thereby has improved secondary-electron emission characteristics and charge retention characteristics. This PDP can stably operate with a low electric-power consumption while exhibiting satisfactory image display performances. Also provided is a PDP in which the occurrence of delays in discharge during driving is prevented and which can be expected to exhibit high-quality image display performances even when the PDP is a high-resolution PDP driven at a high speed. A surface layer (protective film) (8) which comprises CeO2 as a major component and contains 16-29 mol% barium and which has a thickness of about 1 [mu]m is disposed on the side of a dielectric layer (7) which faces a discharge space (15). Thus, an electron level with a certain depth is formed in the forbidden band of the surface layer (8), or the electron level of the valence band thereof is increased. A reduction in band gap is thereby attained, and secondary-electron emission characteristics and charge retention characteristics are improved.

Description

technical field [0001] The present invention relates to a plasma display panel utilizing radiation caused by gas discharge. In particular, it relates to a technique for improving the properties of a surface layer (protective film) facing a discharge space. Background technique [0002] A plasma display panel (hereinafter referred to as PDP) is a flat-panel display device that utilizes radiation from gas discharge. It is easy to perform high-speed display and enlargement, and is widely used in fields such as video display devices and publicity display devices. There are direct current type (DC type) and alternating current type (AC type) of PDPs, but the surface discharge type AC type PDP has particularly high technical potential in terms of life characteristics and upsizing, and has been commercialized. [0003] Image 6 It is a schematic group diagram of a discharge unit, ie, a discharge cell structure, in a general AC-type PDP. Should Image 6 The shown PDP 1x is constr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J11/02H01J11/12H01J11/40
CPCH01J11/12H01J11/40
Inventor 福井裕介坂井全弘西谷干彦本多洋介冈藤美智子山内康弘
Owner PANASONIC CORP