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Field emission light source device

A field emission and light source technology, applied in the field of optoelectronics, can solve the problems of low luminous efficiency and limit the application of field emission light source devices, and achieve the effects of improving luminous efficiency, ensuring continuous and stable light emission, and satisfying uniformity

Inactive Publication Date: 2013-12-04
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, like the common field emission light source structure, they all have the essential problem of low luminous efficiency, which greatly limits the application of field emission light source devices.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a field emission light source device provided by Embodiment 1 of the present invention includes an anode substrate 11, a cathode substrate 12, and a support 13 connecting and supporting the anode substrate 11 and the cathode substrate 12, and the anode substrate 11 and the cathode substrate 12 are opposite and separated from each other. Setting; the lower surface of the anode substrate 11 is sequentially stacked with a reflective layer 14, a light-emitting layer 15 and a metal layer 16, and the metal layer 16 is provided with a number of microstructures 161 connected to each other and evenly distributed; the upper surface of the cathode substrate 12 is provided with electronic Emissive layer 17.

[0023] When the field emission light source device provided in this embodiment works, a high voltage is applied between the anode substrate 11 and the cathode substrate 12, and a high-voltage electric field is formed between the anode substrate 11 an...

Embodiment 2

[0033] Such as figure 2 As shown, a field emission light source device provided by Embodiment 2 of the present invention includes an anode substrate 21, a cathode substrate 22, and a support 23 connecting and supporting the anode substrate 21 and the cathode substrate 22, and the anode substrate 21 and the cathode substrate 22 are opposite and separated Setting; the lower surface of the anode substrate 21 is sequentially stacked with a reflective layer 24, a metal layer 25 and a light emitting layer 26, and the metal layer 25 is provided with a number of microstructures 251 connected to each other and evenly distributed; the upper surface of the cathode substrate 22 is provided with electronic Emissive layer 27.

[0034] When the field emission light source device provided in this embodiment works, a high voltage is applied between the anode substrate 21 and the cathode substrate 22, and a high-voltage electric field is formed between the anode substrate 21 and the cathode su...

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Abstract

The invention discloses a field emission light source device. The field emission light source device comprises an anode substrate, a cathode substrate and a supporting body connecting and supporting the anode substrate and the cathode substrate, wherein the anode substrate and the cathode substrate are arranged opposite to each other at intervals; a reflective layer, a luminous layer and a metal layer are sequentially arranged on the lower surface of the cathode substrate in a stacked mode, or the reflective layer, the metal layer and the luminous layer are sequentially arranged on the lower surface of the anode substrate in a stacked mode, and a plurality of microstructures which are connected with one another are evenly distributed on the metal layer; an electron emission layer is arranged on the upper surface of the cathode substrate. According to the field emission light source device, due to the fact that the metal layer with the microstructures is formed on the surface of the luminous layer, the surface plasma effect is generated on the interfaces of the metal layer and the luminous layer under the stimulation of cathode rays, internal quantum efficiency of luminescent materials of the luminous layer is greatly improved through the surface plasma effect, and the luminous efficiency of the luminous layer is improved. In addition, the reflective layer reflects light out, so that the light outgoing direction is opposite to the electron exit direction, and therefore the high requirements for the uniformity and the gray level of a light source from a backlight source are met.

Description

technical field [0001] The invention belongs to the technical field of optoelectronics, in particular to a field emission light source device. Background technique [0002] At present, field emission devices in the field of vacuum microelectronics have shown broad application prospects in the field of lighting and display, and have attracted extensive attention from domestic and foreign research institutions. The working principle of the field emission device is: in a vacuum environment, the anode applies a forward voltage to the field emission cathode arrays (field emissive arrays, FEAs) to form an accelerating electric field, and the electrons emitted by the cathode accelerate and bombard the luminescent material on the anode plate to emit light. . This kind of device has a wide operating temperature range (-40°C~80°C), short response time (<1ms), simple structure, power saving, and meets the requirements of green environmental protection. Since the field emission lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J63/06H01J63/08H01J63/02H01J63/04
Inventor 周明杰王荣陈贵堂
Owner OCEANS KING LIGHTING SCI&TECH CO LTD