Outdoor display screen and LED packaging devices thereof

A technology for LED packaging and outdoor display screens, applied in the field of light sources, can solve problems such as light pollution and light energy waste, and achieve the effect of increasing light intensity and reducing light pollution

Active Publication Date: 2013-12-11
LEDMAN OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, there is a need for a method with high energy conversion and without changing the shape of

Method used

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  • Outdoor display screen and LED packaging devices thereof
  • Outdoor display screen and LED packaging devices thereof
  • Outdoor display screen and LED packaging devices thereof

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[0024] The solution of the present invention will be described in further detail below through the accompanying drawings and embodiments, but in the following description, it is only for illustration rather than limitation.

[0025] see image 3 , Figure 4 and Figure 5 shown, image 3 It is a schematic cross-sectional structure diagram of the LED package device according to the first embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of a longitudinal cross-sectional optical path of the LED package device according to the first embodiment of the present invention.

[0027] Figure 5 It is a schematic diagram of a cross-sectional optical path of the LED package device according to the first embodiment of the present invention.

[0028] This embodiment provides an LED package device 30, including: an LED light-emitting chip 301, a package body 302 covering the LED light-emitting chip, and a reflective layer 303 covering a light-emitting sur...

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Abstract

The invention discloses an outdoor display screen and LED packaging devices thereof. The outdoor display screen comprises the LED packaging devices. Each LED packaging device comprises an LED light-emitting chip, a packaging body covering the LED light-emitting device, and a reflection layer covering a light-emitting face on the upper side of the packaging body, wherein the reflection layer enables light rays incident to the reflection layer from the packaging body to be reflected to a light-emitting face on the lower side of the packaging body. Through the mode, the outdoor display screen and the LED packaging devices can effectively promote the light intensity of a visual part, therefore achieves an energy-saving effect at the application end of the display screen, and can reduce light pollution.

Description

technical field [0001] The invention relates to the technical field of light sources, in particular to an outdoor display screen and an LED packaging device. Background technique [0002] With the rapid development of display technology, outdoor display screens can be seen everywhere. Outdoor display screens generally consist of multiple LED pixels arranged in rows and columns, and the core component of an LED pixel is an LED packaging device. [0003] LED packaging devices generally include a base, an LED chip fixed on the base, and an elliptical package (commonly known as a lamp bead) covering the LED chip. Usually, outdoor display screens are used to hang at a certain height, and the package used is elliptical, and the normal light intensity of the package is the brightest spot, and the light on both sides of the normal direction is symmetrically distributed, as shown in figure 1 As shown, its light type curve is shown in 2. Since the hanging place generally has a cert...

Claims

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Application Information

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IPC IPC(8): H01L33/52H01L33/60G09F9/33
Inventor 李漫铁屠孟龙项其第
Owner LEDMAN OPTOELECTRONICS
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