Field emission backlight

A technology of backlight source and field emission, applied in the field of backlight source, can solve the problems of uneven light emission and uneven output light of the phosphor layer thickness and electron phosphor layer.
CN101285960AActive Publication Date: 2008-10-15TSINGHUA UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2008-10-15

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Abstract

The invention relates to a field emission backlight, comprising an anode substrate, a cathode substrate and a fluorescent layer arranged on the anode substrate. A light reflecting layer is arranged between the anode substrate and the fluorescent layer; the cathode substrate is transparent; the cathode substrate is provided with a transparent conducting layer and an enphoric cathode; the enphotic cathode comprises a carbon nanotube; and emergent light of the field emission backlight has high-uniform property.
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Description

technical field

[0001] The invention relates to a backlight source, in particular to a field emission backlight source. Background technique

[0002] Planar light sources are widely used in many fields, especially in the field of information display. A variety of passive display devices, including liquid crystal displays, require a planar light source that can emit light uniformly to provide a light source for them. In the prior art, optical methods are generally used to process point light sources or line light sources to obtain a uniform plane light source. For example, the backlight panel of liquid crystal uses light guide plates and diffusers to disperse line light sources into a plane light source.

[0003] However, the planar light source device working in this conversion mode cannot directly obtain planar light, and must be obtained by subsequent optical processing. Moreover, it is also necessary to assemble precision-processed optical components, such as microlense...

Claims

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