Light source apparatus comprising a stack of low pressure gas filled light emitting panels and backlight module
AssigneeIndustrial Technology Research Institute
InventorsYi-Ping Lin, Jung-Yu Li, Shih-Pu Chen, Wei-Chih Lin, Lian-Yi Cho
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Abstract
A light source apparatus applicable to a backlight module includes a cathode structure, an anode structure, a fluorescent layer, a secondary electron generation layer, and a low-pressure gas layer. The fluorescent layer is located between the cathode structure and the anode structure. The low-pressure gas layer is filled between the cathode structure and the anode structure. The secondary electron generation layer is disposed on the cathode structure and can generate additional secondary electrons to hit the fluorescent layer for improving the luminous efficiency.
Claims10
A backlight source apparatus, comprising:
- at least one power controller, for providing at least one operating voltage;
- a light emitting unit, comprising at least one light emitting panel controlled by an operating voltage, wherein the light emitting panel comprises:
- a cathode structure as a planar layer;
- an anode structure as a planar layer, located opposite to the cathode structure;
- a fluorescent layer, located between the cathode structure and the anode structure;
- and
- a low-pressure gas layer, filled between the cathode structure and the anode structure, and functioning to induce the cathode to uniformly emit electrons,
- wherein the low-pressure gas layer comprises a large electron mean free path allowing electrons to directly hit the fluorescent layer under an operating voltage,
- wherein the at least one light emitting panel is at least one stacked structure, formed by a plurality of light emitting panels.
Dependencies are inferred from the claim text.