LED light source

A technology of LED light source and reflector cup, which is applied in the field of LED light source, can solve problems such as screen artifacts, inconsistent lighting angles, and affecting the display effect of LED display screens, and achieve the effect of enhancing light mixing performance and improving quality

Inactive Publication Date: 2011-02-09
SHENZHEN JIUZHOU OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reflective cup 13 of the above-mentioned LED light source is designed as an inverted truncated cone, and the light emitted by each LED chip 15 is not well mixed in the reflective cup 13, thereby affecting the overall display effect of the LED display.
In addition, the red, green, and blue LED chips are arranged in the shape of "pin", which makes the light-emitting angles of the three chips inconsistent, which further reduces the mixed light effect of the LED light source, resulting in when viewing the LED display from a certain angle, there will be The phenomenon of screen flowers

Method used

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Embodiment Construction

[0018] In order to make those skilled in the art more clearly understand the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] The LED light source disclosed in the present invention is mainly used for making LED display screens, and of course, can also be used for making other types of LED products such as LED desk lamps and backlight systems. combine Figure 2 to Figure 4 As shown, the LED light source includes a base 10, on which a reflective cup 12 is formed, and three LED chips 14 of red, green and blue are arranged at the bottom of the reflective cup 12, and each LED chip 14 They are respectively electrically connected to corresponding electrode pins 18 through gold wires 16 . Wherein, the reflective cup 12 formed on the base 10 has a uniform and gradual structure from the circular cup bottom to the rounded square cup mouth, t...

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Abstract

The invention discloses an LED light source comprising a base, a reflecting cup formed on the base, and at least two LED wafers arranged at the bottom of the reflecting cup, wherein the reflecting cup has a structure that uniform gradual changing is generated from a round cup bottom to a square cup rabbet with a circular bead, the side length of the square cup rabbet with a circular bead is larger than the diameter of the round cup bottom, and the radio of the radius of the circular bead to the side length is 1:6-14. The reflecting cup of the LED light source is designed into a structure thatthe uniform gradual changing is generated from the round cup bottom to the square cup rabbet with a circular bead, and the side length of the square cup rabbet with a circular bead is larger than thediameter of the round cup bottom, thereby enhancing the light-mixing property of the reflecting cup, ensuring that light emitted from each LED chip arranged in the reflecting cup can be sufficiently mixed, and improving the quality of the LED light source.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to an LED light source. Background technique [0002] Due to the advantages of clear images, vivid colors, and adaptability to harsh outdoor environments, full-color LED displays are more and more popular among people, and are used in various types of occasions for display purposes. As the basic unit of LED display, the quality of LED light source directly determines the display quality of LED display. refer to figure 1 , which shows a structure of an existing LED light source for making a three-primary-color LED display screen, the LED light source includes a base 11, and an inverted cone-shaped reflective cup 13 is formed on the base 11. The bottom of the reflective cup 13 is provided with three LED chips 15 of red, green and blue arranged in the shape of "product". The reflective cup 13 of the above-mentioned LED light source is designed as an inverted truncated cone, and the lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S2/00F21V7/10H01L33/60F21Y101/02F21K9/232F21K9/235F21K9/238F21K9/68F21Y113/13F21Y115/10
Inventor 肖从清杨华明季伟
Owner SHENZHEN JIUZHOU OPTOELECTRONICS TECH
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