TWM621534U - LED package, display device, lamp and lighting system - Google Patents

Abstract

This creation discloses an LED package, a display device, a lamp, and a lighting system, including a substrate, a control unit, and an LED light-emitting unit. The substrate includes a power terminal, a ground terminal, a signal input terminal, a signal output terminal, and a test terminal; the input of the control unit The terminal is electrically connected to the signal input terminal, the driving terminal of the control unit, the negative terminal of the LED light-emitting unit and the test terminal are electrically connected together, the output terminal of the control unit is electrically connected to the signal output terminal, and the ground terminal of the control unit is electrically connected to the ground terminal. The anode of the LED light-emitting unit is electrically connected with the power terminal. The test terminal and the power terminal are provided through the substrate of the LED package, so that after the control unit and the LED light-emitting unit are packaged on the substrate, the LED can emit light by applying a forward voltage to the test terminal and connecting the power terminal to the power supply ground. Parameters such as reverse breakdown voltage and leakage current of the unit are tested.

Description

LED packages, display devices, lamps and lighting systems

This creation belongs to the field of optoelectronic technology, and in particular relates to an LED package, a display device, a lamp and a lighting system.

As a common light-emitting device, light-emitting diode (LED) has been widely used in lighting or information display and other technical fields. In the prior art, functions such as single-point control or independent addressing of a single LED package are implemented by embedding a programmable control unit inside the LED package.

The traditional LED package integrates the LED light-emitting chip and the control unit for driving and controlling the LED light-emitting chip, and the traditional LED package only uses the power terminal, the ground terminal, the signal input terminal and the signal output terminal as the packaging. its pins. Inside the LED package body, the negative electrode of the LED light-emitting chip is electrically connected to the driving end of the control unit, and the positive electrode of the LED light-emitting chip is electrically connected to the power terminal. In this way, the packaged LED package can only test the forward conduction and reverse cut-off characteristics of the LED light-emitting chip, but cannot test the parameters such as reverse breakdown voltage and leakage current of the LED light-emitting chip.

The purpose of this creation is to provide an LED package, which aims to solve the problem that the traditional LED package cannot test the parameters such as reverse breakdown voltage and leakage current of the LED light-emitting chip after packaging.

A first aspect of this creative embodiment provides an LED package, comprising: a substrate, a control unit and an LED light-emitting unit, the substrate includes a power terminal, a ground terminal, a signal input terminal and a signal output terminal, the substrate further includes a test terminal; the control unit The input terminal of the control unit is electrically connected to the signal input terminal, the driving terminal of the control unit, the negative terminal of the LED light-emitting unit and the test terminal are electrically connected together, the output terminal of the control unit is electrically connected to the signal output terminal, and the ground terminal of the control unit is connected to the ground The terminals are electrically connected, and the power supply terminal of the control unit, the positive pole of the LED light-emitting unit and the power supply terminal are electrically connected together; the control unit and the LED light-emitting unit are arranged on the substrate, the power supply terminal, the ground terminal, the signal input terminal, the signal output terminal and the test The terminals are respectively used as pins of the LED package for electrical connection with the outside.

In one embodiment, the LED light-emitting unit includes one or more LED light-emitting chips, the number of test terminals is the same as that of the LED light-emitting chips, and the number of driving ends of the control unit is the same as the number of the LED light-emitting chips; The substrate is electrically connected to the corresponding test terminal and the corresponding driving terminal of the control unit.

In one embodiment, the plurality of LED light-emitting chips include red light chips, green light chips and blue light chips; correspondingly, the plurality of test terminals include a first test terminal, a second test terminal and a third test terminal; a plurality of driving terminals It includes a first drive end, a second drive end and a third drive end; the positive electrode of the red light chip, the positive electrode of the green light chip, the positive electrode of the blue light chip, the power supply terminal and the power supply end of the control unit are electrically connected together through the substrate, and the red light The negative electrode of the chip, the first drive terminal of the control unit and the first test terminal are electrically connected together through the substrate, the negative electrode of the green chip, the second drive terminal of the control unit and the second test terminal are electrically connected together through the substrate, and the blue chip is electrically connected through the substrate. The negative electrode of the control unit, the third drive terminal of the control unit and the third test terminal are electrically connected together through the substrate.

In one embodiment, the first test terminal, the second test terminal and the third test terminal are arranged on the first side of the substrate, the power supply terminal, the ground terminal, the signal input terminal and the signal output terminal are arranged on the remaining side of the substrate, and the remaining side is any side except the first side.

In one embodiment, the first test terminal, the second test terminal, the third test terminal, the power terminal, the ground terminal, the signal input terminal and the signal output terminal are arranged on the same side of the substrate.

In one embodiment, the power terminal is used to electrically connect to the positive pole of the external power source, and the test terminal is used to electrically connect to the ground of the external power source; or the power terminal is used to electrically connect to the ground of the external power source, and the test terminal is used to electrically connect to the external power source. the positive pole.

In one embodiment, the material of the power terminal, the ground terminal, the signal input terminal, the signal output terminal and the test terminal are all copper.

A second aspect of the embodiments of the present invention provides a display device, including a driver and a display array, the display array includes X×Y LED packages according to any one of the embodiments in the first aspect; wherein X is the display array The number of rows, Y is the number of columns of the display array; the driver is electrically connected to the signal input terminal of the first LED package for outputting driving signals to the first LED package; the second LED package to the Xth The signal input terminal of each LED package of the ×Y LED packages is electrically connected to the signal output terminal of the preceding LED package.

A third aspect of the embodiments of the present invention provides a lamp, including N LED packages according to any embodiment of the first aspect; wherein, N is an integer greater than 1; The signal input terminal of one LED package is the input terminal of the lamp, the signal output terminal of the Nth LED package is the output terminal of the lamp, and each LED package from the second LED package to the Nth LED package The signal input terminal of the body is electrically connected with the signal output terminal of the preceding LED package body.

A fourth aspect of the embodiments of the present invention provides a lighting system, including a driver and the lamp according to the embodiment in the third aspect; the output end of the driver is electrically connected with the input end of the lamp; the driver is used for outputting to the lamp drive signal.

Compared with the prior art, the embodiment of the present invention has the beneficial effect that: by arranging a test terminal on the substrate of the LED package, the negative electrode of the LED light-emitting unit is electrically connected to the test terminal, and the test terminal is also packaged as an LED package Therefore, after the LED package body is encapsulated, not only can the forward conduction and reverse cut-off characteristics of the LED light-emitting unit be tested by applying a forward voltage to the power supply terminal and connecting the test terminal to the power supply ground; The parameters such as reverse breakdown voltage and leakage current of the LED light-emitting unit can be further tested by applying a forward voltage to the test terminal and connecting the power terminal to the power supply ground.

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present creation more clear, the present creation will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

In addition, the terms "first" and "second" are used for illustration purposes only, and should not be interpreted as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined with "first" and "second" may expressly or implicitly include one or more of the feature. In the description of this creation, "plurality" means two or more, unless otherwise expressly and specifically limited.

Traditionally, the test of the LED light-emitting chip is completed before the LED light-emitting chip is packaged on the substrate of the LED package, and after the LED light-emitting chip is packaged to the substrate of the LED package, because the negative electrode of the LED light-emitting chip is connected to the control unit. The driving end of the LED light-emitting chip is electrically connected and the detection terminal cannot be drawn out separately, so the forward voltage cannot be applied to the negative electrode of the LED light-emitting chip, so the reverse breakdown voltage and leakage current of the LED light-emitting chip of the packaged LED package body cannot be detected. . In the process of production or transportation of the LED package, if the PN structure of the LED light-emitting chip is damaged, such as static electricity or chip cracking, it will cause reverse breakdown or leakage of the LED light-emitting chip. With the prolongation of the use time of the LED light-emitting chip, the brightness of the LED light-emitting chip will drop sharply, which leads to the deterioration of the quality of the LED package. Since the conventional LED package cannot detect the reverse breakdown voltage and leakage current of the LED light-emitting chip after it is packaged, it is impossible to screen out such poor quality LED packages.

In view of this, the LED package of the present invention is provided with test terminals, and the test terminals are also packaged as pins of the LED package, so that after the LED package is packaged, not only can the forward voltage be applied to the power terminals and The test terminal is connected to the power supply ground to test the forward conduction and reverse cut-off characteristics of the LED light-emitting chip, and the LED light-emitting chip can be further tested by applying a forward voltage to the test terminal and connecting the power terminal to the power supply ground. The reverse breakdown voltage and leakage current test of the device can be used to screen out the LED packages corresponding to the LED light-emitting chips with abnormal reverse breakdown voltage and/or leakage current, thereby improving the quality control quality of the LED packages.

Embodiments of the present invention first provide an LED package. Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an LED package according to an embodiment of the present invention. As shown in FIG. 1 , the LED package includes a substrate 800, a control unit 100 and an LED lighting unit 200; the substrate 800 includes a power terminal 300, a ground terminal 400, a signal input terminal 500, a signal output terminal 600 and a test terminal 700; the LED lighting unit 200 is an LED light-emitting chip in this embodiment.

The input end of the control unit 100 is electrically connected to the signal input terminal 500 , the driving end of the control unit 100 , the negative electrode of the LED lighting unit 200 and the test terminal 700 are electrically connected together, and the output end of the control unit 100 is electrically connected to the signal output terminal 600 For connection, the ground terminal of the control unit 100 is electrically connected to the ground terminal 400 , and the power terminal of the control unit 100 and the anode of the LED light-emitting unit 200 are electrically connected to the power terminal 300 .

The control unit 100 and the LED light-emitting unit 200 are disposed on the substrate 800 , and the power terminal 300 , the ground terminal 400 , the signal input terminal 500 , the signal output terminal 600 and the test terminal 700 are used as pins of the LED package for electrical connection with the outside. .

The power terminal 300 is used as the power supply pin of the packaged LED package, the ground terminal 400 is used as the ground pin of the packaged LED package, and the signal input terminal 500 is used as the signal input pin of the packaged LED package. The output terminal 600 is used as the signal output pin of the packaged LED package; the test terminal 700 is used as the test pin of the packaged LED package.

In this embodiment, the signal input terminal 500 is used for receiving an external driving signal and transmitting the driving signal to the control unit 100 . After the control unit 100 receives the driving signal, it can generate a control signal based on the driving signal, and output the control signal to the LED lighting unit 200 through the driving terminal of the control unit 100, so as to drive and control the LED lighting unit 200, such as controlling the LED lighting unit 200 on or off.

In addition, when a plurality of LED packages are electrically connected in series, the control unit 100 in each LED package can further organize the received driving signals and then output the signals to the next-level LED package through the signal output terminal 600 Input terminal 500. The test terminal 700 is provided for the LED package, and the test terminal 700 is electrically connected to the negative electrode of the LED light-emitting unit 200, and the power terminal 300 is electrically connected to the positive electrode of the LED light-emitting unit 200, so that the control unit 100 and the LED light-emitting unit are electrically connected. After the 200 is packaged on the substrate 800 , parameters such as reverse breakdown voltage and leakage current of the LED lighting unit 200 can be tested by applying a forward voltage to the test terminal 700 and connecting the power terminal 300 to an external power source to ground. At the same time, it is also possible to test whether the LED lighting unit 200 can be normally lit by applying a forward voltage to the power terminal 300 and connecting the test terminal 700 to an external power source to ground.

Specifically, the power terminal 300 is used to electrically connect the positive pole of the external power source, and the test terminal 700 is used to electrically connect to the ground of the external power source; or the power terminal 300 is used to electrically connect to the ground of the external power source, and the test terminal 700 is used for electrical connection Connect to the positive side of the external power supply.

When the power terminal 300 is electrically connected to the positive pole of the external power source, and the test terminal 700 is electrically connected to the ground of the external power source, by applying a forward voltage to the power terminal 300 and connecting the test terminal 700 to the ground of the external power source, it is possible to test whether the LED lighting unit 200 is Can be lit normally; when the power terminal 300 is used for electrical connection with the external power supply ground, and the test terminal 700 is used for electrical connection with the positive pole of the external power supply, by applying a forward voltage to the test terminal 700 and connecting the power terminal 300 to the external power supply grounding , so as to test parameters such as reverse breakdown voltage and leakage current of the LED lighting unit 200 .

In another embodiment, the LED lighting unit 200 includes a plurality of LED lighting chips, such as a red LED lighting chip, a green LED lighting chip and a blue LED lighting chip, respectively, so as to meet the lighting requirements of the LED package, and the test terminal 700 The number of LEDs is the same as the number of LED light-emitting chips, and the number of the driving ends of the control unit 100 is the same as the number of LED light-emitting chips. One LED light-emitting chip corresponds to one test terminal 700 and one drive terminal of the control unit 100 .

The negative electrode of the LED light-emitting chip is electrically connected to the corresponding test terminal 700 and the corresponding driving end of the control unit 100 through the substrate 800; The conductive pads and the conductive circuits of the pins are connected to facilitate the fixing of electronic components and each test terminal 700 can be independently contacted with the positive pole of the external power supply or the external power supply grounding.

Referring to FIGS. 2 to 4 , in one embodiment, the LED light-emitting unit 200 includes a red light chip 210 , a green light chip 220 and a blue light chip 230 .

Correspondingly, the plurality of test terminals 700 include a first test terminal 710 , a second test terminal 720 and a third test terminal 730 . The plurality of driving ends of the control unit 100 include a first driving end, a second driving end and a third driving end.

The positive electrode of the red light chip 210 , the positive electrode of the green light chip 220 , the positive electrode of the blue light chip 230 , the power terminal 300 and the power terminal of the control unit 100 are electrically connected together through the substrate 800 , and the substrate 800 is provided with pins extending as the power terminals 300 . The conductive pad is used to facilitate the electrical common connection of the above-mentioned components through the conductive pad; the negative electrode of the red light chip 210, the first driving terminal of the control unit 100 and the first test terminal 710 are electrically connected to each other through the substrate 800, and the green light The negative electrode of the chip 220 , the second drive terminal of the control unit 100 and the second test terminal 720 are electrically connected together through the substrate 800 , and the negative electrode of the blue chip 230 , the third drive terminal of the control unit 100 and the third test terminal 730 are connected through the substrate 800 . Electrically connected, the substrate 800 is provided with a plurality of conductive pads and formed with pins as terminals, and even a conductive circuit connecting the conductive pads and the pins can be provided, so as to facilitate the fixing of the above-mentioned chips and the corresponding transmission of the above-mentioned components. The conductive pads are electrically connected together, and the conductive pads serving as the pins of each test terminal 700 can be independently contacted with the positive pole of the external power supply or the grounding of the external power supply, so as to facilitate practical operation.

In this embodiment, parameters such as reverse breakdown voltage and leakage current of the red chip 210 can be tested by applying a forward voltage to the first test terminal 710 and connecting the power terminal 300 to the power supply ground; A forward voltage is applied and the first test terminal 710 is connected to the power source to ground, so as to test whether the red light chip 210 can be lit normally. Further, parameters such as reverse breakdown voltage and leakage current of the green chip 220 can be tested by applying a forward voltage to the second test terminal 720 and connecting the power terminal 300 to the power supply ground; by applying a forward voltage to the power terminal 300 voltage and connect the second test terminal 720 to the power supply ground, so as to test whether the green light chip 220 can be normally lit. Further, parameters such as reverse breakdown voltage and leakage current of the blue light chip 230 can be tested by applying a forward voltage to the third test terminal 730 and connecting the power terminal 300 to the power supply ground; by applying a forward voltage to the power terminal 300 And the third test terminal 730 is connected to the power source to ground, so as to test whether the blue light chip 230 can be lit normally.

In an embodiment of the present invention, the power supply terminal 300 , the ground terminal 400 , the signal input terminal 500 , the signal output terminal 600 , the first test terminal 710 , the second test terminal 720 and the third test terminal 730 are made of copper, It reduces the loss when transmitting signals or electricity.

Referring to FIG. 3 , in one embodiment, a plurality of pins, which are respectively used as the first test terminal 710 , the second test terminal 720 and the third test terminal 730 , are disposed on the same side of the substrate 800 , and are respectively used as the power terminals 300 , 720 and 730 . The plurality of pins of the ground terminal 400 , the signal input terminal 500 and the signal output terminal 600 are disposed on the remaining side of the substrate 800 , and this preferred configuration will facilitate subsequent testing operations. Wherein, when the shape of the substrate 800 is a square, a plurality of pins, which are respectively the first test terminal 710 , the second test terminal 720 and the third test terminal 730 , can be arranged on the first side of the substrate 800 and are respectively used as the power terminal 300 . The plurality of pins of the ground terminal 400 , the signal input terminal 500 and the signal output terminal 600 may be disposed on the second side, the third side and the fourth side of the substrate 800 .

Referring to FIG. 4 , when the shape of the substrate 800 is a long strip, it is respectively used as the first test terminal 710 , the second test terminal 720 , the third test terminal 730 , the power terminal 300 , the ground terminal 400 , the signal input terminal 500 and the signal The plurality of pins of the output terminal 600 are disposed on the same side (long side) of the substrate 800 , and this preferred configuration will facilitate subsequent testing operations.

Referring to FIG. 5 , the present inventive embodiment further provides a display device including a driver 1000 and a display array 2000 , and the display array 2000 includes X×Y LED packages (using 911 in the figure) as described in any of the above embodiments , 912...91y; 921, 922...92y...9x1, 9x2...9xy). Wherein, X is the number of rows of the display array 2000 , and Y is the number of columns of the display array 2000 . Because the display device of this embodiment includes the LED package described in any one of the above embodiments, the display device of this embodiment at least includes the beneficial effects corresponding to the LED package described in any one of the above embodiments.

The driver 1000 is electrically connected to the signal input terminal of the first LED package 911 for outputting driving signals to the first LED package 911 ; the second LED package 912 is placed in the X×Y-th LED package 9xy The signal input terminal of each LED package body is electrically connected with the signal output terminal of the preceding LED package body.

In this embodiment, a plurality of LED packages are connected in series, which reduces wiring consumables.

Referring to FIG. 6 , the present inventive embodiment further provides another lighting fixture, including N LED packages (marked as 901...90M...90M+1...90N in the figure) as described in any of the above-mentioned embodiments, because this The lamp of the embodiment includes the LED package described in any of the above-mentioned embodiments, so the lamp of this embodiment at least includes the beneficial effects corresponding to the LED package of any of the above-mentioned embodiments. Wherein, N is an integer greater than 1. In the N LED packages, the signal input terminal of the first LED package 901 is the input terminal of the lamp, the signal output terminal of the Nth LED package 90N is the output terminal of the lamp, and the second LED package to the Nth LED The signal input terminal of each LED package in each LED package is electrically connected to the signal output terminal of the preceding LED package, so as to realize serial connection between the plurality of LED packages, thereby reducing wiring consumables.

In this embodiment, the reverse breakdown voltage and leakage current of the LED light-emitting chip of any LED package body of the lamp can be detected, so it is possible to screen out the abnormal reverse breakdown voltage and/or leakage current in the lamp case of the LED package.

Referring to FIG. 7 , this creative embodiment further provides a lighting system including a driver 1000 and the lamp 3000 of the above-mentioned embodiment. Because the lighting system of this embodiment includes the lamp 3000 of any of the above-mentioned embodiments, the The lighting system includes at least the beneficial effects corresponding to the lamps 3000 of any of the above embodiments. The output end of the driver 1000 is electrically connected to the input end of the lamp 3000 , and the driver 1000 is used for outputting a driving signal to the lamp 3000 .

In this embodiment, the driver 1000 outputs a first-level external driving signal to the first LED package 901, and the first LED package 901 operates according to the first-level external driving signal and outputs the next-level external driving signal to the second LED package. The second LED package operates according to the driving signal output by the first LED package 901, and outputs the next-level external driving signal to the third LED package, and so on, until the Nth LED package 90N operates according to the first LED package 90N. The driving signals output by the N-1 LED packages operate to realize serial connection between a plurality of LED packages, thereby reducing wiring consumables.

The above embodiments are only used to illustrate the technical solutions of the present creation, but not to limit it; although the present creation has been described in detail with reference to the foregoing embodiments, those with ordinary knowledge in the art should understand that: it can still be used for the foregoing implementations. Modify the technical solutions described in the examples, or perform equivalent replacements to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of this creation, and all of them should include within the scope of protection of this creation.

100: Control unit 200: LED lighting unit 210: red light chip 220: Green chip 230: Blu-ray chip 300: Power terminal 400: Ground terminal 500: Signal input terminal 600: Signal output terminal 700: Test terminal 710: The first test terminal 720: Second test terminal 730: The third test terminal 800: Substrate 1000: drive 901,90M,90M+1,90N,911,912,91y,921,922,92y,9x1,9x2,9xy:LED package 2000: Display array 3000: Lamps

FIG. 1 is a schematic structural diagram of an LED package provided by an embodiment of the invention; FIG. 2 is a schematic structural diagram of an LED package provided by another embodiment of the present invention; 3 is a schematic diagram of terminal distribution of an LED package provided by an embodiment of the present invention; 4 is a schematic diagram of terminal distribution of an LED package provided by another embodiment of the present invention; FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present invention; FIG. 6 is a schematic structural diagram of a lamp according to an embodiment of the present invention; and FIG. 7 is a schematic structural diagram of a lighting system according to an embodiment of the present invention.

100: Control unit

200: LED lighting unit

300: Power terminal

400: Ground terminal

500: Signal input terminal

600: Signal output terminal

700: Test terminal

800: Substrate

Claims (10)

An LED package includes: a substrate, a control unit and an LED light-emitting unit, the substrate includes a power terminal, a ground terminal, a signal input terminal, a signal output terminal and a test terminal; An input end of the control unit is electrically connected to the signal input terminal, a drive end of the control unit, a negative electrode of the LED light-emitting unit and the test terminal are electrically connected together, and an output end of the control unit is electrically connected to the signal The output terminal is electrically connected, a ground terminal of the control unit is electrically connected to the ground terminal, a power terminal of the control unit and the positive electrode of the LED light-emitting unit are electrically connected to the power terminal; The control unit and the LED light-emitting unit are disposed on the substrate, and the power terminal, the ground terminal, the signal input terminal, the signal output terminal and the test terminal are respectively used as a part of the LED package for electrical connection with the outside. pin. The LED package of claim 1, wherein the LED light-emitting unit comprises one or more LED light-emitting chips, the number of the test terminals is the same as the number of the LED light-emitting chips, and the number of the driving ends of the control unit is the same as the number of the LED light-emitting chips The number of light-emitting chips is the same; The negative electrode of the LED light-emitting chip is electrically connected to the corresponding test terminal and the corresponding driving terminal of the control unit through the substrate. The LED package of claim 2, wherein the plurality of LED light-emitting chips comprise a red light chip, a green light chip and a blue light chip; correspondingly, the plurality of test terminals comprise a first test terminal, a first two test terminals and a third test terminal; the plurality of driving terminals include a first driving terminal, a second driving terminal and a third driving terminal; The positive electrode of the red light chip, the positive electrode of the green light chip, the positive electrode of the blue light chip, the power supply terminal and the power supply terminal of the control unit are electrically connected together through the substrate, the negative electrode of the red light chip, the positive electrode of the control unit The first drive terminal and the first test terminal are electrically connected through the substrate, the negative electrode of the green chip, the second drive terminal of the control unit and the second test terminal are electrically connected through the substrate. The negative electrode of the blue light chip, the third driving end of the control unit and the third test terminal are electrically connected together through the substrate. The LED package of claim 3, wherein the first test terminal, the second test terminal and the third test terminal are disposed on a first side of the substrate, the power terminal, the ground terminal, the signal input The terminal and the signal output terminal are arranged on the remaining side of the substrate, and the remaining side is any side except the first side. The LED package of claim 3, wherein the first test terminal, the second test terminal, the third test terminal, the power terminal, the ground terminal, the signal input terminal and the signal output terminal are disposed on the the same side of the substrate. The LED package according to any one of claim 1 to claim 5, wherein the power terminal is used for electrically connecting a positive pole of an external power source, and the test terminal is used for electrically connecting an external power source to ground; or The power terminal is used for electrically connecting to the ground of the external power supply, and the test terminal is used for electrically connecting the positive pole of the external power supply. The LED package according to any one of claim 1 to claim 5, wherein the power terminal, the ground terminal, the signal input terminal, the signal output terminal and the test terminal are made of copper. A display device comprising a driver and a display array, the display array comprising X×Y LED packages as described in any one of claim 1 to claim 7; wherein X is the row of the display array number, Y is the number of columns of the display array; The driver is electrically connected to the signal input terminal of the first LED package for outputting a driving signal to the first LED package; the second LED package to the X×Y-th LED package The signal input terminal of each LED package in the body is electrically connected to the signal output terminal of the preceding LED package. A lamp, comprising N LED packages according to any one of claim 1 to claim 7; wherein, N is an integer greater than 1; The signal input terminal of the first LED package in the N LED packages is an input terminal of the lamp, the signal output terminal of the Nth LED package is an output terminal of the lamp, and the second LED package is an output terminal of the lamp. The signal input terminal of each of the LED packages from the LED packages to the Nth LED package is electrically connected to the signal output terminal of the preceding LED package. A lighting system comprising a driver and the lamp as claimed in claim 9; An output end of the driver is electrically connected with the input end of the lamp; the driver is used for outputting a driving signal to the lamp.

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