Light-emitting backlight source for single-ring pyramid inclined plane cathode concave straight arc section gating structure

Abstract

The invention discloses a light-emitting backlight source for a single-ring pyramid inclined plane cathode concave straight arc section gating structure. The light-emitting backlight source comprisesa vacuum sealing body and getter auxiliary elements located in the vacuum sealing body. The vacuum sealing body is composed of a front transparent hard glass plate, a rear transparent hard glass plateand narrow glass frame strips. An anode low-resistance membrane electric layer, an anode gray silver external connection layer and a thin light-emitting layer are arranged on the front hard glass plate, the anode low-resistance membrane electric layer is connected with the anode gray silver external connection layer, and the thin light-emitting layer is manufactured on the anode low-resistance membrane electric layer; and a single-ring pyramid inclined plane cathode concave straight arc section gating structure is arranged on the rear hard glass plate. The light-emitting backlight source hasthe advantages of being stable and reliable in manufacturing process and excellent in light-emitting brightness adjustability.

Description

technical field [0001] The present invention belongs to the fields of integrated circuit science and technology, semiconductor science and technology, optoelectronic science and technology, microelectronics science and technology, nanometer science and technology, vacuum science and technology, and plane display technology. It relates to the production of planar light-emitting backlights, specifically to the production of planar light-emitting backlights with carbon nanotube cathodes, and in particular to a light-emitting backlight with a gate-controlled structure of a single-ring pyramid inclined plane cathode concave straight arc segment and its production craft. Background technique [0002] Carbon nanotubes have good electrical conductivity, and in a suitable vacuum environment, they can emit electrons only depending on the strength of an external electric field, thereby forming an electric current. Relying on this characteristic, carbon nanotubes can be made into suita...

AI Technical Summary

Problems solved by technology

[0003] However, there are still some technical difficulties in the light-emitting backlight with three-pole structure that need to be solved urgently.

For example, first, the electron emission efficiency of carbon nanotubes is too low

In the produced carbon nanotube layer, most of the carbon nanotubes can only emit a small amount of electrons, and even some carbon nanotubes do not emit electrons at all; without a sufficient number of carbon nanotubes for electron emission, it is impossible to form effective current, the luminous brightness of the luminous backlight cannot be improved.

Second, the ability of the gate voltage to regulate the electron emission of the carbon nanotube layer is very weak

However, in the luminous backlight, the cathode current does not strictly increase or decrease with the change of the gate voltage, so that the control ability of the gate to the electron emission ability of the carbon nanotubes is poor, even in some luminous backlights Among them, the gate voltage cannot effectively control the electron emission of carbon nanotubes

Third, the fabrication area of ​​carbon nanotubes is small

There is not enough carbon nanotube production area, which means that the number of carbon nanotubes is too small; without a sufficient number of carbon nanotubes for electron emission, it is impossible to form a large cathode current

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