CN210897274U

CN210897274U - SMD3433 programmable IC drive three-color LED packaging structure

Info

Publication number: CN210897274U
Application number: CN201922190842.9U
Authority: CN
Inventors: 程志海
Original assignee: Suzhou Brightek Optoelectronic Co ltd
Current assignee: Suzhou Brightek Optoelectronic Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-06-30
Anticipated expiration: 2029-12-09

Abstract

The utility model provides a SMD3433 IC drive three-colour LED's packaging structure able to programme, including built-in IC driver chip able to programme and the parallelly connected three-colour LED chip that sets up, and three-colour LED chip with IC driver chip is located the base of difference respectively. The utility model discloses a three-colour LED chip is controlled respectively to the IC driver chip realizes LED's colorful demonstration, has enlarged LED's use, when satisfying colorful demonstration, has reduced the cost of using this LED's product.

Description

SMD3433 programmable IC drive three-color LED packaging structure

Technical Field

The utility model belongs to the technical field of SMD-LED and specifically relates to a SMD3433 IC drive three-colour LED's packaging structure that can programme.

Background

The three-color SMD-LED is one of surface mount diodes, which has advantages of small volume, large scattering angle, good light emitting uniformity, high reliability, and the like, compared to other types of LEDs. The existing three-color SMD-LED realizes the colorful change by an IC with a built-in fixed program, the color change is controlled by the IC, and the color output is controlled by RGB 256 × 256 gray scale; the color change is single, and the using requirement of the LED cannot be met, and if the product applying the three-color SMD-LED wants to realize the change of more colors, more different three-color SMD-LEDs need to be input, which undoubtedly increases the input cost of the product.

Disclosure of Invention

In order to solve the above problem, the present invention provides a package structure of SMD3433 programmable IC driver three-color LED.

The main contents of the utility model include:

the SMD3433 programmable IC drive three-color LED packaging structure comprises a packaging main body, an IC drive chip, a red LED chip, a green LED chip and a blue LED chip; the packaging main body comprises a packaging shell and a plurality of bases arranged in the packaging shell; the IC driving chip, the red LED chip, the green LED chip and the blue LED chip are respectively arranged on different bases; the red LED chip, the green LED chip and the blue LED chip are connected in parallel between the VDD pin and the IC driving chip; a DI pin, a DO pin, a VDD pin and a GND pin are arranged outside the packaging shell; the IC driving chip comprises a control end, a driving end, a signal input end, a signal output end and a negative electrode; and a signal input end of the IC driving chip is connected with the DI pin, a signal output end of the IC driving chip is connected with the DO pin, a control end of the IC driving chip is connected with the VDD pin, and a negative electrode of the IC driving chip is connected with the GND pin.

Preferably, the blue LED chip, the red LED chip and the green LED chip are sequentially and horizontally arranged on one side of the IC driving chip; and the blue LED chip, the red LED chip, the green LED chip and the IC driving chip are arranged on the base through insulating glue.

Preferably, the VDD pins include a first VDD pin and a second VDD pin, the anode of the green LED chip is connected to the first VDD pin through a first connection line, and the anode of the blue LED chip is connected to the second VDD pin through a second connection line; and a third connecting line is also connected between the first VDD pin and the second VDD pin.

Preferably, the first connecting line, the second connecting line and the third connecting line are gold wires.

Preferably, the driving end of the IC driving chip includes a red driving end, a green driving end and a blue driving end, and the red driving end is connected to the negative electrode of the red LED chip through a first driving connection line; the green driving end is connected with the negative electrode of the green LED chip through a second driving connecting wire; the blue driving end is connected with the negative electrode of the blue LED chip through a third driving connecting wire.

Preferably, the first driving connection line, the second driving connection line and the third driving connection line are gold wires.

Preferably, the package body further comprises a package colloid, and the package colloid covers the IC driving chip, the blue LED chip, the red LED chip, and the green LED chip.

Preferably, the encapsulation colloid is transparent silica gel.

The beneficial effects of the utility model reside in that: the utility model provides a SMD3433 IC drive three-colour LED's packaging structure able to programme, including built-in IC chip able to programme and the parallelly connected three-colour LED chip that sets up, realize that the IC chip controls three-colour LED chip respectively to realize LED's colorful demonstration, enlarged LED's use, when satisfying colorful demonstration, reduced the cost of using this LED's product.

Drawings

Fig. 1 is a top view of the present invention.

Detailed Description

The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.

Please refer to fig. 1. The utility model provides a SMD3433 programmable IC drive three-color LED packaging structure, which comprises a packaging main body, an IC drive chip 1, a red LED chip 2, a green LED chip 3 and a blue LED chip 4; the packaging body comprises a packaging shell 10 and a plurality of bases 100 arranged in the packaging shell 10; a DI pin 110, a DO pin 120, a VDD pin 130, and a GND pin 140 are provided outside the package case 10; wherein, the VDD pins 130 are two in total, the GND pin 140 and the DI pin 110 are disposed on one side of the package housing 10, and the DO pin 120 and the VDD pins 130 are disposed on the other side of the package housing 10; specifically, the VDD pin includes a first VDD pin 131 and a second VDD pin 132.

In one embodiment, the IC driving chip 1, the red LED chip 2, the green LED chip 3, and the blue LED chip 4 are respectively disposed on different bases 100, and specifically, the blue LED chip 4, the red LED chip 2, and the green LED chip 3 are sequentially and horizontally arranged on one side of the IC driving chip 1; and the blue LED chip 4, the red LED chip 2, the green LED chip 3 and the IC driving chip 1 are disposed on the base 100 through an insulating paste 101. The independent bases 100 are separated by embedded plastic bodies, in this embodiment, the red LED chip 2, the green LED chip 3, and the blue LED chip 4 are connected in parallel between the VDD pin 130 and the IC driving chip 1, that is, the three LED chips are connected in parallel and then connected in series with the IC driving chip 1, that is, the IC driving chip 1 can drive the three LED chips respectively, thereby realizing more colorful display.

In one embodiment, the IC driving chip 1 includes a control terminal 11, a driving terminal 12, a signal input terminal 13, a signal output terminal 14, and a negative electrode 15; the signal input terminal 13 of the IC driver chip is connected to the DI pin 110, the signal output terminal 14 thereof is connected to the DO pin 120, the control terminal 11 thereof is connected to the VDD pin 130, and the negative electrode 15 thereof is connected to the GND pin 140.

Further, the anode of the green LED chip 3 is connected to the first VDD pin 131 through a first connection line 31, and the anode of the blue LED chip 4 is connected to the second VDD pin 132 through a second connection line 41; a third connection line 42 is connected between the first VDD pin 131 and the second VDD pin 132. Preferably, the first connecting line 31, the second connecting line 41 and the third connecting line 42 are gold wires.

In one embodiment, the driving terminal 12 of the IC driving chip 1 includes a red driving terminal 121, a green driving terminal 122 and a blue driving terminal 123, and the red driving terminal 121 is connected to the negative electrode of the red LED chip 2 through a first driving connection line 21; the green driving end 122 is connected with the cathode of the green LED chip 3 through a second driving connection line 32; the blue driving terminal 123 is connected to the cathode of the blue LED chip 4 through a third driving connection line 43. Preferably, the first driving connection line 21, the second driving connection line 32 and the third driving connection line 43 are gold wires.

In other embodiments, the cathode of the IC driving chip is connected to the GND pin 140 through a gold wire, and the signal input end of the IC driving chip is connected to the DI pin through a gold wire; the control end of the IC drive chip is connected with the first VDD pin through a gold wire; and the signal output end of the IC driving chip is connected with the DO pin through a gold wire.

In other embodiments, the package body further includes a package colloid 102, and the package colloid 102 covers the IC driving chip 1, the blue LED chip 4, the red LED chip 2, and the green LED chip 3. Preferably, the encapsulant 102 is transparent silicone.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

The programmable IC drive three-color LED packaging structure is characterized by comprising a packaging main body, an IC drive chip, a red LED chip, a green LED chip and a blue LED chip; the packaging main body comprises a packaging shell and a plurality of bases arranged in the packaging shell; the IC driving chip, the red LED chip, the green LED chip and the blue LED chip are respectively arranged on different bases; a DI pin, a DO pin, a VDD pin and a GND pin are arranged outside the packaging shell; the red LED chip, the green LED chip and the blue LED chip are connected in parallel between the VDD pin and the IC driving chip; the IC driving chip comprises a control end, a driving end, a signal input end, a signal output end and a negative electrode; and a signal input end of the IC driving chip is connected with the DI pin, a signal output end of the IC driving chip is connected with the DO pin, a control end of the IC driving chip is connected with the VDD pin, and a negative electrode of the IC driving chip is connected with the GND pin.
2. The SMD3433 package structure of programmable IC driven three-color LED according to claim 1, wherein said blue LED chip, said red LED chip and said green LED chip are sequentially and horizontally arranged on one side of said IC driving chip, and said blue LED chip, said red LED chip, said green LED chip and IC driving chip are disposed on a base through an insulating paste.
3. The package structure of the SMD3433 of the programmable IC driving three-color LED of claim 1 wherein the VDD pin includes a first VDD pin and a second VDD pin, the anode of the green LED chip is connected to the first VDD pin through a first connection line, and the anode of the blue LED chip is connected to the second VDD pin through a second connection line; and a third connecting line is also connected between the first VDD pin and the second VDD pin.
4. The SMD3433 package structure of programmable IC driving three-color LED of claim 3, wherein said first, second and third connecting lines are gold wires.
5. The SMD3433 programmable IC driven three-color LED package structure of claim 1, wherein the driving terminals of the IC driving chip comprise a red driving terminal, a green driving terminal and a blue driving terminal, and the red driving terminal is connected to the negative electrode of the red LED chip through a first driving connection line; the green driving end is connected with the negative electrode of the green LED chip through a second driving connecting wire; the blue driving end is connected with the negative electrode of the blue LED chip through a third driving connecting wire.
6. The SMD3433 package structure of claim 5, wherein the first, second and third driving connection lines are gold wires.
7. The SMD3433 package structure of programmable IC driven three-color LED of claim 1, wherein said package body further comprises a packaging colloid, said packaging colloid is covered on said IC driving chip, said blue LED chip, said red LED chip and said green LED chip.
8. The package structure of the SMD3433 programmable IC driven three-color LED of claim 7 wherein the encapsulant is transparent silicone.