Luminescent display with prism-cone-cone combined multi-ribbon-strip cathode trislant straight-up gating structure

Abstract

The invention discloses a light-emitting display device with a frustum cone combined multi-prismatic strip cathode triclinic straight gate control structure. The light-emitting display device comprises a vacuum chamber as well as supporting wall attached elements and a getter which are positioned in the vacuum chamber, wherein the vacuum chamber is composed of a front glass sealing plate, a rear glass sealing plate and a transparent glass frame; a front film conducting layer, an anode outer lead layer connected with the front film conducting layer and a fluorescent powder layer manufactured on the front film conducting layer are arranged on the front glass sealing plate; and the frustum cone combined multi-prismatic strip cathode triclinic straight gate control structure is arranged on the rear glass sealing plate. The light-emitting display device has the advantages that the manufacturing structure is simple, the manufacturing technology is stable and reliable and the display device is high in light-emitting brightness.

Description

technical field [0001] The present invention belongs to the fields of nanometer science and technology, optoelectronic science and technology, vacuum science and technology, integrated circuit science and technology, microelectronics science and technology and display technology, and relates to a flat field emission display The manufacture specifically relates to the manufacture of a planar field emission luminescent display of a carbon nanotube cathode, and in particular to a luminescent display with a pyramid-cone-cone combined multi-rib strip-shaped cathode with a three-slope straight-up gating structure and its manufacturing process. Background technique [0002] Carbon nanotubes have many excellent properties and can emit electrons under the action of an external electric field, so carbon nanotubes are very suitable as cathode materials for field emission luminescent displays. From the perspective of manufacturing technology, with the successful application of screen pr...

AI Technical Summary

Problems solved by technology

Due to the unreasonable cathode structure, the number of carbon nanotubes capable of electron emission is very small; more carbon nanotubes cannot perform normal electron emission at all

This is very unfavorable for effectively improving the luminous brightness of light-emitting displays.

Second, the gate operating voltage required by the carbon nanotube layer for electron emission is too high

Due to the weakened control function of the gate on the carbon nanotube layer, the electron emission of many carbon nanotubes is not controlled by the gate operating voltage, which will greatly increase the power loss of the overall light-emitting display.

Third, the effective distance between the gate and the carbon nanotube layer is too large

Although the effective distance between the two is too large, the requirements for the performance of the insulating material between the two are reduced, and it is easier to find and make an insulating layer, but the gate operating voltage is forced to increase, which is not worth the candle.

Due to the high operating voltage of the gate, it is extremely easy to cause electrical breakdown between the gate and the cathode, resulting in permanent damage to the light-emitting display

In addition, the interception of a large number of electrons emitted by the carbon nanotube layer by the gate is also a problem that cannot be ignored, which not only reduces the size of the anode operating current, thereby reducing the luminous intensity of the light-emitting display, but also increases the gate operating current. , thereby increasing the useless work burden of the light-emitting display

In the production of field emission light-emitting displays, if the above-mentioned problems cannot be solved, it is difficult to develop flat-panel display products with high luminous brightness, high display image quality, and good control performance.

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