Field emission flat panel display with shield electrode structure and its producing method

A flat-panel display and shielding electrode technology, which is applied in the field of field emission flat-panel displays with a shielding electrode structure and its manufacturing process, can solve the problems of unfavorable flat-panel devices and burnt-out of the overall device, so as to increase the success rate, improve the success rate, Create simple effects

Inactive Publication Date: 2009-02-25
ZHONGYUAN ENGINEERING COLLEGE
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Problems solved by technology

Since the electrons emitted from the carbon nanotube cathode are not all perpendicular to the direction of the anode panel, but there are emission angles in all directions, so some of the electrons will fly to the supporting wall structure and hit the supporting wall structure, Cause secondary electron emission, which is very unfavorable for further improving the display quality of flat panel devices
In severe cases, it is also easy to cause the phenomenon of burning the whole device

Method used

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  • Field emission flat panel display with shield electrode structure and its producing method
  • Field emission flat panel display with shield electrode structure and its producing method
  • Field emission flat panel display with shield electrode structure and its producing method

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

[0044] The present invention comprises a sealed vacuum chamber composed of a cathode panel 1, an anode panel 9 and surrounding glass enclosures 13, a printed carbon nanotube cathode 8 on the cathode panel 1, and a control grid for controlling the electron emission of the carbon nanotube cathode 8 Pole 4, supporting wall structure 15, tin indium oxide film layer 10 photoetched on the anode panel 9 and phosphor powder 12 layers prepared on the tin indium oxide film layer 10, characterized in that: the vacuum chamber inside the display There is a shielding electrode structure 7 for shielding secondary electron emission.

[0045] The shielding electrode structure 7 includes a base material 1, a cathode conductive strip 2 arranged on the base material, an insulating isolation layer 3 arranged on ...

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Abstract

This invention relates to a field emission panel display with a shield electrode structure and its manufacturing technology including a closed vacuum cavity composed of a cathode panel, an anode panel and a surrounding glass frame, among which, a printed carbon nm tube cathode, a grating for controlling its electronic emission and a bracing wall structure are set on the cathode panel, a photoetched SnIn oxide film layer and a fluorescent powder layer prepared on it are set on the anode panel and a shielding electrode structure for shielding second time electronic emission is set in the vacuum cavity.

Description

technical field [0001] The present invention belongs to the field of vacuum science and technology, the field of nano science technology and the field of planar display technology. In particular, it relates to the manufacturing process of a field emission flat display device with a shielding electrode structure and a carbon nanotube cathode. Background technique [0002] Flat panel display devices have penetrated into various fields of today's civilian and military applications. With the development of information technology, higher and higher requirements are put forward for display technology and display devices. Carbon nanotubes have a small tip radius of curvature and a high aspect ratio, making them ideal cathode materials. In field emission flat panel display devices using carbon nanotubes as cathode materials, due to the existence of supporting wall structures, the potential distribution and electric field intensity distribution of the display device are inevitably ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J31/12H01J29/02H01J9/00H01J9/02
Inventor 李玉魁
Owner ZHONGYUAN ENGINEERING COLLEGE
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