Unlock instant, AI-driven research and patent intelligence for your innovation.

White light LED device with adjustable color temperature display index, and preparing method and regulating and controlling method of white light LED device

An LED device, display finger adjustable technology, applied in the direction of electric solid-state devices, semiconductor devices, electrical components, etc., to achieve good economic benefits and reduce production costs

Active Publication Date: 2016-04-13
LEDMAN OPTOELECTRONIC HZ CO LTD
View PDF9 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem in the prior art that a single LED device requires at least two LED chips of different colors to achieve color temperature control, the present invention provides a white LED device with adjustable color temperature display, its preparation method and adjustment method. In the present invention White light LED devices only need one color LED chip to realize the control of color temperature and CRI

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • White light LED device with adjustable color temperature display index, and preparing method and regulating and controlling method of white light LED device
  • White light LED device with adjustable color temperature display index, and preparing method and regulating and controlling method of white light LED device
  • White light LED device with adjustable color temperature display index, and preparing method and regulating and controlling method of white light LED device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Please refer to Figure 1-4 , the present embodiment provides a white light LED device with adjustable color temperature and display index. The white light LED device includes: a main frame 10, a first bowl 101, a second bowl 102, a chip circuit and an encapsulant.

[0062] Such as figure 1 and 2 As shown, along the longitudinal direction of the main body support 10 , the top surface of the main body support 10 is recessed inside the main body support 10 to form a first bowl 101 and a second bowl 102 . The first bowl 101 and the second bowl 102 have the same shape and size. On the main body bracket 10, there are also two groups of conductive pins, which are integrally formed with the main body bracket 10; the two groups of conductive pins on the main body bracket 10 serve as the conductive pins of the white light LED device at the same time, and are connected with the external power supply. or external circuit connections. The two groups of conductive pins are respe...

Embodiment 2

[0074] This embodiment provides a method for preparing a white light LED device with adjustable color temperature display, which includes the following steps:

[0075] Mold opening: Form the first bowl 101 and the second bowl 102 on the top surface of the main body support 10 . Such as figure 1 and 2 , use CAD to design the model of SMD white light LED device, and carry out injection mold opening. The size of the white LED device can be 5730, 2835 or others. The main frame 10 is made of PPA or EMC resin material. In a preferred solution, in the mold opening step, a first spacer bracket 401 is also formed on the main body bracket 10; the first spacer bracket 401 is longitudinally formed between the first bowl cup 101 and the second bowl cup 102 to separate the first bowl cup 101 and the second bowl cup 102 a blue LED chip and a second blue LED chip. The material of the first spacer bracket 401 is consistent with that of the main body bracket 10 , and can be integrally form...

Embodiment 3

[0081] This embodiment provides a method for controlling the color temperature display of a white LED device, which includes the following steps:

[0082] Current regulation: adjust the current of the first bowl 101, and the power of the first bowl 101 changes from the first power initial percentage to the first power adjustment percentage P 1 ;Adjust the current of the second bowl 102, the power of the second bowl 102 changes from the second power initial percentage to the second power adjustment percentage P 2 ; Wherein, the adjustment range of the current in each bowl varies according to the blue LED chip fixed in the bowl, which can be 0-700mA. The variation of power in each bowl corresponds to 0-100%.

[0083] Brightness control: The brightness of white LED devices changes from the initial brightness to:

[0084] P 1 ×The highest brightness of the first bowl +P 2 × Highest brightness for the second bowl.

[0085] Color temperature control: The color temperature of wh...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a white light LED device with an adjustable color temperature display index, and a preparing method and a regulating and controlling method of the white light LED device. The white light LED device comprises a body support, a first cup, a second cup, a first blue light LED chip, a second blue light LED chip, a first fluorescent gel layer and a second fluorescent gel layer. The first cup and the second cup are formed in the body support. The first blue light LED chip is fixed in the first cup, and the second blue light LED chip is fixed in the second cup. The first blue light LED chip is sealed in the first cup through the first fluorescent gel layer, and the second blue light LED chip is sealed in the second cup through the second fluorescent gel layer. The first fluorescent gel layer has a low color temperature and high display index ratio, and the second gel layer has a high color temperature and low display index ratio; or the first gel layer has a high color temperature and low display index ratio, and the second fluorescent gel layer has a low color temperature and high display index ratio. The two different fluorescent gel layers are injected into the two cups respectively to control the currents of the two chips respectively, so that controllability of the color temperature display index is achieved, and the structure design that the color temperature cannot be adjusted unless at least two kinds of color chips are available traditionally is broken through.

Description

technical field [0001] The invention relates to the field of LED devices, in particular to a white LED device with adjustable color temperature display, a preparation method and a control method thereof. Background technique [0002] In the prior art, a single LED device that realizes controllable color temperature mainly has the following structure: [0003] 1. A single LED device is loaded with red, green and blue chips, and the color temperature can be controlled by controlling the current; 2. A single LED device is loaded with red and blue chips, and is sealed with yellow phosphor powder. The color temperature can be controlled by controlling the current of the red chip; 3. A single LED device is loaded with white and red chips, and the color temperature can be controlled by controlling the current of the red chip. [0004] Although the single LED devices with the above three structures can achieve the purpose of controlling the color temperature, they require at least ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/48H01L33/50H01L33/00
CPCH01L33/005H01L33/48H01L33/50H01L2224/48091H01L2224/48247H01L2224/48257H01L2924/00014
Inventor 李漫铁屠孟龙余应森
Owner LEDMAN OPTOELECTRONIC HZ CO LTD