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Discharge type display device

A technology for display devices and discharge spaces, applied in discharge tubes, AC plasma display panels, electrode configurations, etc., can solve problems such as poor luminous efficiency and low brightness of display devices, and achieve the effect of preventing color deviation and suppressing deterioration

Inactive Publication Date: 2008-03-19
HITACHI PLASMA PATENT LICENSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, as shown in FIG. 19, since the discharge 150 is generated at one position of the intersection, for example, when the discharge cell is enlarged in order to enlarge the screen, only the central portion of the discharge cell that is the intersection is discharged. , so the brightness of the display device is low, there is a problem that the peripheral part of the discharge cell is slightly dark, and the luminous efficiency is deteriorated.

Method used

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Experimental program
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Embodiment approach 1

[0059] FIG. 1 is a schematic plan view of a discharge display device according to Embodiment 1 of the present invention. Fig. 2 is a structural sectional view along line II-II of Fig. 1 . Fig. 3 is a sectional view of the structure along line III-III of Fig. 1 .

[0060] Discharge display device 1 according to Embodiment 1 of the present invention has a structure in which front substrate 10a and rear substrate 10b, such as a glass plate having excellent transmittance in the visible light region, are arranged to face each other, and low-melting-point glass is used for passage. A discharge medium such as Xe—Ne, Xe—He is sealed in the space (discharge space) created by sealing the peripheral portions of the facing surfaces of front substrate 10a and rear substrate 10b with a sealing material such as paste.

[0061] A dielectric layer 11 for accumulating wall charges is formed on the front substrate 10a, and first electrodes 13 and second electrodes 14 perpendicular to each other...

Embodiment approach 2

[0072] In Embodiment 1, a discharge type display device is described in which the first electrode and the second electrode for inducing sustain discharge are provided on one substrate (front substrate), but the first electrode and the second electrode are not necessarily required. The example in which they are provided on the same substrate is described in Embodiment Mode 2. 8 and 9 are sectional views of the structure of the discharge display device according to Embodiment 2 of the present invention, and the plan views are omitted because they are the same as those in FIG. 1 . 8 corresponds to a cross-sectional view of the structure along line II-II in FIG. 1 , and FIG. 9 corresponds to a cross-sectional view of the structure along line III-III in FIG. 1 .

[0073] A dielectric layer 21 for accumulating wall charges is formed on the front substrate 10a, and first electrodes 23 are formed inside the dielectric layer 21 at a predetermined pitch. On the other hand, a dielectric...

Embodiment approach 3

[0076] In Embodiment 2, the discharge type display device in which the dielectric layer on the front substrate side is thicker on the discharge space side than the other regions is described, but the dielectric layer on the back substrate side may be thicker on the discharge space side. The case where one side is thicker than the other regions is described in Embodiment 3. 10 is a cross-sectional view showing the structure of a discharge display device according to Embodiment 3 of the present invention, and its plan view is omitted because it is the same as FIG. 1 . Furthermore, FIG. 10 corresponds to a structural sectional view taken along line II-II in FIG. 1 .

[0077] A dielectric layer 31 for accumulating wall charges is formed on the front substrate 10a, and first electrodes 33 are formed inside the dielectric layer 31 at a predetermined pitch. On the other hand, a dielectric layer 32 is formed on the rear substrate 10b, and second electrodes 34 perpendicular to the fir...

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Abstract

On a front substrate, a dielectric layer for accumulating the wall charge is formed, and inside the dielectric layer, a first electrode and a second electrode intersecting each other are formed with a predetermined pitch. The dielectric layer is not flat but is convex at the intersection of the first electrode and the second electrode, and the thickness in the direction of the discharge space from the second electrode at the intersection is larger than the thickness in the remaining area. Consequently, since the electric field distribution at the intersection is coarser than that at places apart from the intersection when discharge is sustained by causing an electric field distribution in the discharge space through the dielectric layer, discharge occurs not at the intersection but in four positions at places apart from the intersection, so that the luminous efficiency per discharge cell is improved.

Description

technical field [0001] The present invention relates to a discharge type display device, and more particularly, to a discharge type display device capable of improving luminous efficiency by controlling the position in a discharge space where discharge occurs. Background technique [0002] 15 is a perspective view of main parts of a conventional discharge display device (orthogonal two-electrode discharge system PDP), FIG. 16 is a schematic plan view, and FIG. 17 is a structural sectional view taken along line XVII-XVII in FIG. 16 . [0003] The orthogonal 2-electrode discharge method PDP as a discharge display device is a self-luminous display device, and the front substrate 100a and the rear substrate 100b of a glass plate with excellent transmittance in the visible light region (380nm-770nm) are combined. In the facing arrangement, a discharge medium such as Xe—Ne, Xe—He is sealed in a space created by sealing the peripheries of the opposing surfaces of the above-mentione...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J11/02H01J11/12H01J11/22H01J11/24H01J11/34H01J11/36H01J11/38H01J11/42H01J11/50
CPCH01J11/14H01J2211/323H01J11/12H01J11/32H01J11/38
Inventor 温水宽介小坂忠义高木一树濑尾欣穗井上一崎田康一
Owner HITACHI PLASMA PATENT LICENSING
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