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Field emission device

A field emission device and light-emitting layer technology, applied in the field emission field, can solve the problems of easy movement of spherical supports, shortened device life, unbalanced pressure, etc.

Active Publication Date: 2013-11-13
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method has a simple process, it is difficult to control the diameter error of the microbeads within the required range, and the position of the spherical support is easy to move, which makes the pressure between the substrate and the support unbalanced, and the substrate is easily broken, thereby reducing Device stability and shortened device lifetime

Method used

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Embodiment Construction

[0026] Such as figure 1 As shown, the field emission device 100 of the present invention comprises an anode substrate 10 having a luminescent layer 11, a cathode substrate 20 having a cathode layer 21, and a support 30 connecting and supporting the anode substrate 10 and the cathode substrate 20, wherein the cathode substrate 20 and the anode substrate 10 are arranged oppositely, and the distance therebetween is 3mm. The support body 30 is disposed between the anode substrate 10 and the cathode substrate 20 .

[0027] Further, the luminescent layer 11 is arranged opposite to the cathode layer 21, the anode substrate 10 is provided with a first flange 12 surrounding the luminescent layer 11, the cathode substrate 20 is provided with a second flange 22 surrounding the cathode layer 21, and the second flange 22 The shape and size are the same as those of the first flange 12, and the positions correspond to each other.

[0028] In addition, the supporting body 30 is provided wit...

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Abstract

The invention relates to a field emission device comprises an anode substrate with a luminescent layer, a cathode substrate with a cathode layer and a support body which connects and supports the anode substrate and the cathode substrate. The luminescent layer is arranged opposite to the cathode layer; a first flange is arranged around the luminescent layer on the anode substrate; a second flange is arranged around the cathode layer on the cathode substrate; the support body is provided with a first groove clamped with the first flange and a second groove clamped with the second flange and the first groove and the second groove are arranged back to back; and in the emission device, the first groove and the second groove of the support body are respectively matched with the first flange of the anode substrate and the second flange of the cathode substrate and are sealed by adopting sealing material. Therefore, the support body, the anode substrate and the cathode substrate are tightly contacted when the device is vacuumized and sealed so as to ensure uniform stress.

Description

【Technical field】 [0001] The invention relates to the technical field of field emission, in particular to a field emission device of a field emission device. 【Background technique】 [0002] A field emission device generally includes a cathode substrate with an emitter, an anode substrate coated with a light-emitting layer, and a support. The cathode substrate and the anode substrate are arranged opposite to each other and kept at a certain interval, and are sealed around, with a vacuum space in the middle. [0003] The traditional support is usually a spherical support, which is a method of placing multiple prefabricated spherical ceramic or glass beads directly between the upper and lower plates of the device as a support. Although this method has a simple process, it is difficult to control the diameter error of the microbeads within the required range, and the position of the spherical support is easy to move, which makes the pressure between the substrate and the suppor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/313H01J29/86H01J29/08
Inventor 周明杰李清涛马文波
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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