Luminous backlight source of single-ring sag type curved surface cathode three-back-arc-layer gating structure

Abstract

The invention discloses a luminous backlight source of a single-ring sag type curved surface cathode three-back-arc-layer gating structure. The luminous backlight source comprises a vacuum sealing body and a getter accessory component located in the vacuum sealing body. The vacuum sealing body is composed of a front transparent hard glass plate, a rear transparent hard glass plate and a narrow glass frame strip. An anode bottom film power transmission layer, an anode bent silver-connected electric layer and a thin light-emitting layer are arranged on the front transparent hard glass plate, theanode bottom film power transmission layer is connected with the anode bent silver-connected electric layer, and the thin light-emitting layer is manufactured on the anode bottom film power transmission layer. The single-ring sag type curved surface cathode three-back-arc-layer gating structure is arranged on the rear transparent hard glass plate. The luminous backlight source has advantages thata manufacturing process is reliable and luminous gray scale adjustable performance of the luminous backlight source is good.

Description

technical field [0001] The present invention belongs to the fields of plane display technology, vacuum science and technology, semiconductor science and technology, microelectronics science and technology, nanometer science and technology, integrated circuit science and technology, and optoelectronic science and technology. It relates to the production of planar light-emitting backlight, specifically to the production of planar light-emitting backlight of carbon nanotube cathode, in particular to a kind of light-emitting backlight with single-ring groove-shaped curved surface cathode with three back-arc layer gating structure and its production craft. Background technique [0002] Carbon nanotubes have a small tip curvature radius, good electrical conductivity and excellent mechanical strength. They are also a suitable cathode material and have been widely used in various vacuum components. For the production of carbon nanotube cathodes, many researchers have conducted rese...

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Problems solved by technology

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

For example, on the one hand, the control performance of the gate voltage on the electron emission of the carbon nanotube layer is relatively poor

A smaller gate voltage cannot make the carbon nanotube cathode emit electrons at all, and a larger gate voltage can easily make the electron emission of the carbon nanotube cathode easy to get out of control; at the same time, the electron emission of the carbon nanotube cathode The quantity does not change strictly with the change of the gate voltage, these are the performance of the gate voltage losing the good control function of the carbon nanotube cathode

Second, the electron emission efficiency of the carbon nanotube cathode is relatively low

Without a sufficient number of carbon nanotubes to emit electrons at the same time, it is impossible to form a large cathode current for a luminescent backlight

However, in the carbon nanotube cathode, some carbon nanotubes do not emit electrons at all, and lose their essential function as a cathode; although some carbon nanotubes can emit electrons, the number of emitted electrons is too small to be sufficient. It acts as a source of electrons

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