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Electrode arrangement for plasma display device

A technology for plasma and display devices, which is applied to identification devices, cold cathode tubes, static indicators, etc., can solve the problems of plasma switching responsivity degradation, uneven discharge, and increased discharge current.

Inactive Publication Date: 2003-06-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this conventional method has the disadvantage that the discharge current increases, thereby generating a large voltage drop due to resistance, resulting in uneven discharge
In this case, the generation of excess quasi-stable atoms degrades the responsivity of the plasma switch, leading, for example, to interference problems with its operation

Method used

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  • Electrode arrangement for plasma display device
  • Electrode arrangement for plasma display device
  • Electrode arrangement for plasma display device

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Embodiment Construction

[0010] Some preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 1 shows a first preferred embodiment of a display device according to the present invention, wherein FIG. 1(A) is a sectional view showing the general structure of the display device, and FIG. 1(B) is a plan view of the main part of the display device. As shown in FIG. 1(A), the display device of the preferred embodiment is a plasma-addressed liquid crystal display, which utilizes plasma cells for line-sequential addressing of the liquid crystal cells. However, the present invention is not limited to such displays, and of course can be applied to plasma displays using only plasma cells. As shown in Fig. 1 (A), the display device in the present preferred embodiment has a laminated glass intermediate substrate 3 between the liquid crystal unit 1, the plasma unit 2 and the liquid crystal unit 1 and the plasma unit 2. And the formed plate structu...

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Abstract

To suppress the discharge current in a plasma cell incorporated in a display device, thereby extending the useful service life of the plasma cell and stabilizing the operation characteristics of the plasma cell, the display device includes a plasma cell 2, which includes a pair of substrates 3 and 8 bonded together with a space defined therebetween, discharge electrodes 9 and 9a formed on at least the substrate 8, and an ionizable gas sealed in this space. The discharge electrodes 9 and 9a are grouped into plural pairs of anodes A and cathodes K parallel to each other, thus forming a plurality of discharge channels 12 extending in lines. At least each cathode K is partially covered with insulators 13 periodically arranged, thereby limiting the effective area of each discharge electrode 9a to suppress the discharge current.

Description

technical field [0001] The present invention relates to a display device using a plasma cell, and more particularly to a structure of a discharge electrode formed in the plasma cell. Background technique [0002] In general, plasma cells are used in display devices (displays). For example, plasma displays, which may consist of the plasma cell itself, have been conventionally developed. Recently, a plasma-addressed liquid crystal display having a layered structure formed of layered liquid crystal cells and plasma cells has also been studied. In such plasma-addressed liquid crystal displays, the plasma cell is used for line-sequential addressing of the liquid crystal. In general, a plasma cell is composed of a pair of substrates connected with a certain space therebetween, a discharge electrode formed on at least one of the substrates, and an ionizable gas sealed in the space between the substrates. The discharge electrodes are divided into many anode and cathode groups par...

Claims

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Application Information

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IPC IPC(8): G02F1/1333G02F1/133G09F9/313G09G3/36
CPCG02F1/13334G09G3/3662
Inventor 林正健宫崎滋树
Owner SONY CORP