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Planar display device with circular internal-grid controlled cathode structure and its production

A flat-panel display and cathode structure technology, applied in cold cathode manufacturing, control electrode, electrode system manufacturing, etc., can solve the problems of low display brightness of the device, small effective emission area of ​​the cathode, and high gate voltage.

Inactive Publication Date: 2007-11-21
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the display devices reported so far, there are generally disadvantages such as high gate voltage, low brightness of display devices, and small effective emission area of ​​carbon nanotube cathodes.
In the control mode where the grid structure is located above the carbon nanotube cathode structure, the grid structure will also partially intercept the electron beam emitted by the carbon nanotube cathode, which also causes the adverse effect of too small anode current
The effective emission area of ​​the cathode becomes smaller, which is one of the important reasons that directly lead to the low brightness of the device display.

Method used

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  • Planar display device with circular internal-grid controlled cathode structure and its production
  • Planar display device with circular internal-grid controlled cathode structure and its production
  • Planar display device with circular internal-grid controlled cathode structure and its production

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the embodiments.

[0041] The flat panel display with a grid-controlled cathode structure in a ring includes a sealed vacuum chamber formed by an anode glass panel [14], a cathode glass panel [1] and surrounding glass frames [19]; There is an anode conductive layer [15] and a phosphor layer [17] prepared on the anode conductive layer on the glass panel; there are cathode lead layers [11], carbon nanotubes [13] and ring-in-ring gate-controlled type on the cathode glass panel. Cathode structure; support wall structure [18] and getter [20] accessory elements located between the anode glass panel and the cathode glass panel.

[0042] The grid-controlled cathode structure in the ring includes a cathode glass panel [1], a retardation layer [2], a grid lead layer [3], a grid booster layer [4], a grid extension layer [5...

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Abstract

This is a flat displayer of loop shape inner grid cathode structure and its production process. It includes a sealed vacuum chamber formed by a anodic glass panel, a cathode glass panel and surrounded glass frame; on the anodic glass panel is a conducting layer coated with fluorescent; on the cathode glass panel are a grid down-lead layer, carbon nanotube and loop shape inner grid structure; a supporting wall between the anodic and cathode panel and a getter; which is capable of increasing the display brightness and quality.

Description

technical field [0001] The invention belongs to the fields of flat panel display technology, microelectronic science and technology, vacuum science and technology, and nano science and technology, and relates to device fabrication of flat panel field emission displays, in particular to carbon nanotube cathodes. The device production aspect of flat panel field emission display, in particular relates to a flat panel display with gate-controlled cathode structure in a ring and its manufacturing process. Background technique [0002] Carbon nanotube cathode field emission display is a new type of flat display device that uses carbon nanotubes as cold cathode materials. When an external electric field is applied to carbon nanotubes, a large number of electrons will be emitted from the carbon nanotube cathodes to bombard phosphors. layer to emit visible light. The light-emitting principle of this display is similar to that of the traditional cathode ray tube display, but it saves...

Claims

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Application Information

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IPC IPC(8): H01J31/12H01J31/15H01J29/02H01J29/04H01J1/304H01J1/46H01J9/02H01J9/00
Inventor 李玉魁
Owner ZHONGYUAN ENGINEERING COLLEGE
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