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Long-afterglow LED illuminant, outdoor LED display screen and afterglow display and control method

A technology of LED display screen and long afterglow phosphor powder is applied in semiconductor devices, instruments, electrical components, etc., which can solve the problems of no effect and waste of resources.

Active Publication Date: 2014-06-25
SHENZHEN LEDEN SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because of this, when the LED display is turned off at night, the place becomes a dark place without any effect, which is equivalent to another waste of resources

Method used

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  • Long-afterglow LED illuminant, outdoor LED display screen and afterglow display and control method
  • Long-afterglow LED illuminant, outdoor LED display screen and afterglow display and control method
  • Long-afterglow LED illuminant, outdoor LED display screen and afterglow display and control method

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Embodiment Construction

[0022] refer to figure 1 , figure 2 , the long afterglow LED illuminant of the present invention, the outside of the light-emitting element 10 of the LED illuminant is provided with a long afterglow phosphor lens layer 20, and the long afterglow phosphor lens layer 20 is made of long afterglow phosphor (selection of long afterglow phosphor) The standard is mainly based on the combination of relatively stable chemical properties, afterglow time and afterglow brightness conforming to the standard) and encapsulation materials.

[0023] Preferably, the light-emitting element 10 of the LED illuminant is a blue LED light-emitting element as an excitation source, and the long-lasting phosphor is a phosphor powder paired with the blue light excitation source.

[0024] One of the implementations, such as figure 1 , the long-lasting phosphor lens layer 20 is a primary lens on the outside of the light-emitting element, and the primary lens may be directly potted outside the light-emit...

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PUM

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Abstract

The invention discloses a long-afterglow LED illuminant, an outdoor LED display screen and an afterglow display and control method. The long-afterglow LED illuminant comprises an LED illuminant body, and the outer side of a luminous element of the LED illuminant is provided with a long-afterglow fluorescent powder lens layer. The long-afterglow LED illuminant is applied to the outdoor LED display screen. After being turned on for a certain time and turned off, the long-afterglow LED illuminant can continue emitting light through the long-afterglow fluorescent powder lens layer on the long-afterglow LED illuminant and keep a certain time length of luminance, and patterns or texts for external display are formed so that passers-by on streets and roads can read and watch. Accordingly, the outdoor LED display screen can continue playing a role in advertising, noticing and decorating.

Description

technical field [0001] The invention relates to an LED application technology, in particular to the application of the long afterglow phosphor technology on LED illuminants and outdoor LED display screens. Background technique [0002] Due to its advantages of power saving, convenience, and reliability, outdoor LED display screens are widely used outdoors and outdoors. At present, in the use of LED display screens, when it is late at night, because there are fewer people passing by on the streets and roads, it will be set to turn off the work of the LED display screens after a certain time to save electricity and avoid Waste of support, until the next morning to go back to work and fulfill its primary function. [0003] Because of this, when the LED display is turned off at night, the place becomes a dark place without any effect, which is equivalent to another waste of resources. Therefore, how to further fully utilize the display screen has become an important issue. C...

Claims

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Application Information

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IPC IPC(8): H01L33/50H01L33/58G09F9/33
CPCG09F9/33H01L33/50
Inventor 王长胜莫业文万国江胡学芳关曜宗陈茜冯荣标
Owner SHENZHEN LEDEN SCI & TECH
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