Long-afterglow device and manufacturing method thereof

A long afterglow and device technology, applied in chemical instruments and methods, semiconductor devices, electrical components, etc., can solve the problems of narrow application of long afterglow materials, broaden the application field and use range, prolong the time of luminous afterglow, enhance The effect of glow brightness

Inactive Publication Date: 2011-11-16
张汝京
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Problems solved by technology

[0006] The purpose of the present invention is to provide a long afterglow device and its

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  • Long-afterglow device and manufacturing method thereof
  • Long-afterglow device and manufacturing method thereof
  • Long-afterglow device and manufacturing method thereof

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Embodiment Construction

[0028] The long afterglow device proposed by the present invention and its manufacturing method will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in very simplified form and use imprecise ratios, which are only used for the purpose of conveniently and clearly assisting in describing the embodiments of the present invention.

[0029] The core idea of ​​the present invention is to provide a long afterglow device and its manufacturing method. The rare earth phosphor is arranged on the light-emitting surface of the light-emitting device, and the characteristics of the rare-earth phosphor are used to make the light-emitting device continue to emit light after the power is turned off. The function realizes that the light-emitting device can emit light without relying o...

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Abstract

The invention discloses a method for manufacturing a long-afterglow device. The method comprises the following steps of: preparing rear earth fluorescent powder; and arranging the rear earth fluorescent powder on a light emitting surface of a luminescent device. The invention also provides the long-afterglow device. According to the invention, the rear earth fluorescent powder is arranged on the light emitting surface of the luminescent device so that the luminescent device can still emit light continuously after power off, therefore, the luminescent device possesses a function of emitting light without power supply, an obvious energy-saving effect is achieved; and the rear earth fluorescent powder is not harmful to human bodies, and can prolong the time of the luminescent afterglow, the luminescent brightness is intensified, the device is maintaining-free, has the advantages of environmentally-friendliness, radioactive safety and the like, and the application fields and using range of the device are widened greatly.

Description

technical field [0001] The invention relates to the technical field of packaging of luminescent materials, in particular to a long afterglow device and a manufacturing method thereof. Background technique [0002] The long afterglow phenomenon, commonly known as the luminous phenomenon, has been discovered in ancient times. The popular "luminous pearl" and "luminous wall" are natural minerals such as fluorite, which can store the energy of sunlight and slowly release this energy in the form of light at night, that is, luminous. Long afterglow materials are materials that can store the energy of external light irradiation such as ultraviolet light and visible light, and then slowly release these stored energy in the form of visible light at room temperature. [0003] The long afterglow phenomenon is generally considered to be due to the generation of impurity levels (defect levels) caused by doping. In the excitation stage, the impurity energy level captures holes or electr...

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Application Information

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IPC IPC(8): H01L33/00C09K11/80
Inventor 张汝京
Owner 张汝京
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