TW200930152A - Alternating current driven light emitting diode module - Google Patents

Abstract

An alternating current driven light emitting diode (LED) module including a first LED group and a second LED group is provided. The first LED group includes at least one first LED, at least one second LED, and at least one common LED. All of the LEDs in the first LED group are forward connected each other in series. The second LED group includes at least one third LED and at least one fourth LED. The third LED is reverse and parallel-connected to the first LED and the common LED. The fourth LED is reverse and parallel-connected to the second LED and the common LED.

Description

200930152 IX. Description of the Invention: [Technical Field] The present invention relates to a light-emitting diode module and particularly relates to an AC-driven light-emitting diode wedge. [Prior Art] ❹ In the technical field of today's light-emitting diodes, complex I-light diodes are generally integrated into one light-emitting diode module, and the current light-emitting two-yang module can be divided into DC according to its driving mode. The driving current driven LED module and the AC drive direct current driven LED module are driven. The conventional DC-driven light-emitting diode module is illuminated by the direct current of the direct current. Therefore, the DC-driven LED module must be equipped with a transformer, a rectifier, and a power regulator (regulat〇r). In this way, the DC-driven LED module can receive high-voltage power (such as utility power) to operate normally. However, transformers, rectifiers, and power supply pirates consume extra power, so that DC drives the illuminating efficiency. _ ^ FIG. 1 is a schematic circuit diagram of a conventional AC-driven light-emitting diode. Month > Referring to Figure 1, the conventional AC-driven LED module 1 includes two light-emitting diodes 110, 120 and a transformer 13A. The light-emitting diode string 110 includes a plurality of light-emitting diodes 112' connected in series with each other, and the light-emitting diode string 12 includes a plurality of light-emitting diodes 122 connected in series with each other to electrically connect the light-emitting diode strings ι1. 〇, 200930152 120, and the transformer 130 can reduce the alternating current VI to a voltage acceptable to the light-emitting diodes 112, 122, thereby enabling the light-emitting diodes 112, 122 to operate normally. When the AC driving LED module 100 is connected to the AC VI, the LED string 110 and the LED string 120 alternately emit light. In detail, in the one cycle of the AC VI, when the point A is applied to the positive bias and the point B is applied to the negative bias, the light-emitting diode string 11 〇 emits light, and the light-emitting diode string 120 does not. Glowing. When point A is applied to the negative bias and point b is applied to the positive bias, the light emitting diode string 120 emits light, and the light emitting diode string 110 does not emit light. However, this mode of operation does not effectively increase the brightness of the AC driven LED module 100. Taking the AC-driven LED module 100 shown in FIG. 1 as an example, the AC-driven LED module 1 includes a total of ten LEDs, that is, five LEDs and five LEDs. Polar body 122. When the AC-driven LED module emits light, only the LED strings 11〇, 12〇, and the strings will emit light, that is, among the ten LEDs, only five of them The light-emitting diode will emit light. It can be seen that when the AC-driven LED module 1 illuminates, the ratio of the number of actual illuminating LEDs to the total number of all LEDs is 0.5 ′, that is, only half of the actual number The light-emitting diode is glowing. In this case, this causes the luminous efficiency of the AC-driven LED module 100 to be severely low. SUMMARY OF THE INVENTION 200930152 The present invention provides an AC driven LED module to improve its luminous efficiency. The invention provides an AC driven LED module, comprising a first group of light emitting diodes (fir st LED gr〇up) and a group of second light emitting diodes. The first light-emitting diode group includes at least one first light-emitting diode and at least one common light-emitting diode, and at least one light-emitting diode of f-light-emitting diode group Body in series with each other

The group of neon light emitting diodes includes at least one third light emitting diode and a four-light emitting diode. The third light-emitting diode is connected in parallel with the first one: and the third light-emitting diode is connected in parallel to the common light-emitting diode. The first S light emitting diode is connected, and the fourth light emitting diode is connected in parallel to the common light emitting diode. In one embodiment of the present invention, the power of the power three-emitting diode that is larger than the first light-emitting diode and the first embodiment of the present invention further include a circuit board in which the pole body and the third light source are included. The diode and the pole body are all disposed on the circuit board. The power of the common light-emitting diode, the power of the second light-emitting diode, and the power of the fourth light-emitting diode. The above-mentioned AC-driven LED body first light-emitting diode, second light-emitting two-four light-emitting diode, and common light-emitting diode are in one embodiment of the present invention. The area is larger than that of the first-light-emitting diode. The light-emitting area of the body and the light-emitting diode of the second light-emitting diode and the third light-emitting diode in the present invention. The light-emitting diodes, the third-pass-up-light-emitting diodes, the second-issuing nine-poles, the fourth light-emitting diodes, and the common 200930152 light-emitting diodes have substantially equal light-emitting areas. In the embodiment of the flute invention, the first group of light-emitting diodes and the group of first light-emitting diodes are integrated into a chip. In an embodiment of the invention, the number of the common light-emitting diodes - the polar bodies are in series with each other. In the embodiment of the invention, the common light-emitting contacts are connected in series. In another example, the common light-emitting diodes are connected in parallel with the other common light-emitting diode. In the present invention, the number of the above-mentioned first light-emitting diodes is a square and the first light-emitting diodes are connected in series with each other. The second illuminating: the number of the poles f is a plurality of 'and the number of the second illuminating diodes connected to each other in series is plural, and the third illuminating dipoles are connected in series with each other 'the number of the fourth illuminating diodes There are a plurality of, and these fourth light-emitting diodes are connected in series with each other. In one embodiment of the present invention, the number of the common light-emitting diodes, the number of the second light-emitting diodes, the number of the third light-emitting diodes of the second light-emitting diodes, and the fourth light-emitting diodes The number of polar bodies. In one embodiment of the present invention, the number of the second light-emitting diodes of the first light-emitting diodes, the turns of the third light-emitting diodes, the fourth light-emitting diodes, and the common light-emitting The number of diodes is equal. , 'also described above' by the common light-emitting diode 'when the AC drive light II 200930152 pole, the core group corrects the 'the invention can increase the number of actual light-emitting diodes and its and all light-emitting diodes The total number of _' further increases the luminous efficiency of the AC-driven LED module. The above described features and advantages of the invention will be apparent from the following description.

[Embodiment] [First Embodiment] Fig. 2 is a circuit diagram of a circuit for alternating current driving light-emitting diodes according to a first embodiment of the present invention. For example, the AC driving LED module 200 includes a first LED group 21 and a second LED group 220, wherein the first LED group 21 includes 'Second second-light emitting diode 212, at least-second light emitting diode 214 and at least-shared light emitting diode 216a, and second light emitting diode group shifting = at least - third light emitting diode 222 and all of the light-emitting diodes of the at least one fourth light-emitting diode 224 〇 first-light-emitting diode group are connected in series with each other. That is, in the first light-emitting diode group 21a, the first light-emitting diode 2i2 and the second-diode body 214 body 2!6a are connected in series with each other. For example, a common anode is connected to the cathode of the first-light-emitting body-pole 216a, and a cathode of the common light-emitting diode is connected to the anode of the second light-emitting diode 214. The third light-emitting diode 222 is connected in parallel to the first light-emitting diode 212, and the two light-emitting bodies 222 are connected in parallel to the common light-emitting diode 216& 5, the anode of the second light-emitting diode 222 is connected to the cathode of the light-emitting diode 216a, and the cathode of the third light-emitting diode 222 is connected to the anode of the first diode 212. In addition, the anode of the third LED 222 is also connected to the anode of the second LED 214. The fourth light-emitting diode 224 is connected in parallel to the second light-emitting diode 214, and the fourth light-emitting diode 224 is connected in parallel to the common light-emitting diode 216a. For example, the cathode of the fourth light-emitting diode 224 is connected to the anode of the light-emitting diode ❹ 2__16a, and the anode of the fourth light-emitting diode 224 is connected to the cathode of the second light-emitting body 214. Further, the cathode of the fourth light-emitting diode 224 is also connected to the cathode of the first light-emitting diode 212. The AC drive LED module 2 can be illuminated by an AC V2, and the AC V2 can be connected to the AC drive Pole Module 200 via points C and D. In one cycle of the alternating current V2, when the point c is applied to the positive bias and the point D is applied to the negative bias, the first light-emitting diode 212 of the first light-emitting diode group 21〇a, the first The two light emitting diodes 214 and the common light emitting diode 216a emit light, but the second light emitting diodes 222 and the fourth light emitting diodes 224 of the second light emitting diode group: 220 do not emit light. When the C point is applied to the negative bias, and the defect is applied to the positive bias, the third LED 222 and the fourth LED 224 in the second LED group 220 emit light, and The first light-emitting diode 212 and the second light-emitting diode 214 of one of the light-emitting diode groups 21A do not emit light, but the common light-emitting diode 216a still emits light. From this, it can be seen that the common light-emitting diode 216a is illuminated even if the C point and the D point are applied with a positive bias or a negative bias. In other words, in one cycle of the alternating current V2, the common light-emitting diode 216a has the longest illumination time. In addition, when the AC-driven LED module 200 emits light, the number of actually-emitting LEDs is three. The AC-driven light-emitting diode module 2 shown in Fig. 2 described above includes a total of five light-emitting diodes. That is to say, the total number of all the LEDs of the AC driving LED module 200 is five, that is, one first LED 212, one second LED 214, and a third LED. The body 222, a fourth light emitting diode 224 and a common light emitting diode 216a. When the parent current driving LED module 200 emits light, the number of actually emitting LEDs is three, so the ratio of the number of actually emitting LEDs to the total number of all LEDs is 〇6. . Compared with the prior art, the number of actually emitting light-emitting diodes and the ratio of the total number of light-emitting diodes to all of the hair-emitting bodies are higher than those of the prior art, so the AC-driven light-emitting diode module 200 has a higher ratio. High luminous efficiency. In this embodiment, the power of the common light-emitting diode 216a may be greater than the power of the first light-emitting diode 212, the power of the second light-emitting diode 214, the power of the second light-emitting diode 222, and the fourth light-emitting diode. The power of the polar body 224, that is, the common light-emitting diode 216a is the most powerful light-emitting diode in the AC-driven light-emitting diode mold 200. Since the common light-emitting diode 216a has the longest light-emitting time in one cycle of the alternating current v2, the greater the power of the shared light-emitting diode 216a, the brightness of the AC-driven light-emitting diode module 200 can be greatly improved. . 11 200930152 FIG. 3A is a top plan view of an AC driven light emitting diode module according to the circuit of FIG. 2. Referring to FIG. 3A, in the embodiment, the first LED group 21A and the second LED group 22 can be integrated into a wafer. That is to say, the AC drive LED module 200 can be fabricated into a single wafer. Specifically, the AC driving LED module 200 may further include a substrate 230 and a patterned circuit layer 24A, and the first LED group 210a and the second LED group 220 may be formed on the substrate 23A. In addition, the light-emitting areas of the first light-emitting diode 212, the second light-emitting diode 214, the second light-emitting diode 222, the fourth light-emitting diode 224, and the common light-emitting diode 216a are substantially equal, as shown in the figure. 3A is shown. The patterned circuit layer 240 can be a Re-Distributing Layer (RDL), and the patterned circuit layer 240 can include a plurality of traces 242 'where the traces 242 can cause the first light-emitting diode The body 212, the second light emitting diode 214 and the common light emitting diode 216a are connected in series with each other, and the third light emitting diode 222 is connected in parallel with the first light emitting diode body 212 and the common light emitting diode 216a. The light emitting diode 224 is connected in parallel with the second light emitting diode 214 and the common light emitting diode 216a'. In addition, the patterned circuit layer 240 further includes a plurality of pads 244 for connecting external power sources to allow AC power to enter the AC drive LED modules 2 from the junctions 244. Through these pads 244, the AC drive LED module 2 receives the AC power and emits light. 12 200930152 For the manufacture of the AC drive LED module 200, the following method can be employed. First, a multilayer semiconductor material layer is grown on the substrate 230 by epitaxial growth, wherein the epitaxial growth method may include Molecular Beam Epitaxial (MBE) and Metal-Organic Chemical Vapor Deposition. , MOCVD) or other suitable epitaxial growth method. Next, the semiconductor material layers ' are patterned to form the first light emitting diode 212, the second light emitting diode 214, the third light emitting diode 222, the fourth light emitting diode 224, and the common light emitting diode 216a. The above patterning method may include a lithography and etching process or other suitable method. Thereafter, the patterned wiring layer 240 is formed. There are various methods of forming the patterned wiring layer 240, and one of the methods includes the following flow. First, a conductive layer covering the first light-emitting diode 212, the second light-emitting diode 214, the second light-emitting diode 222, the fourth light-emitting diode 224, and the common light-emitting diode 216a may be formed in a comprehensive manner. Next, the conductive layer is patterned to form a patterned wiring layer 240, wherein the method of patterning the conductive layer may include a lithography and surname process or other suitable method. FIG. 3B is a top plan view of another AC-driven LED module according to the circuit of FIG. 2. FIG. Referring to FIG. 3B, the AC driving light-emitting diode module 2' includes a first light-emitting diode group 21, a second light-emitting diode group 220, and a substrate 230, wherein the first light-emitting diode The group 210b and the second LED group 22A may be formed on the substrate 23A, and the first LED group 21〇b includes the first LED 212 and the second LED 214. And a shared light emitting diode 216b. 13 200930152 The light-emitting area of the common light-emitting diode 216b is larger than the light-emitting area of one of the first light-emitting diode 212, the first light-emitting diode 214, the third light-emitting diode 222, and the fourth light-emitting diode 224. That is, in the first light-emitting diode group 210b, the light-emitting area of the common light-emitting diode 2i6b is the largest. This helps to dissipate the thermal energy of the shared light-emitting diode 2i6b to increase the lifetime of the common light-emitting diode 216b. 3C is a top plan view of another AC-driven LED module according to the circuit of FIG. 2. Referring to FIG. 3C , the AC driving LED module 300 includes a first LED group 31 , a first LED group 320 , and a circuit board 330 . The first LED body . The group 310 includes a first LED 312, a second LED 314, and a common LED 316, and the second LED group 320 includes a third LED 322. A fourth light emitting diode 324. The circuit board 330 has a plurality of traces 332 and a plurality of pads 334, and the first LED group 310 and the second LED group 32 are disposed on the circuit board 330. In the embodiment, the first LED group 310 further includes a plurality of bonding wires 340. The first light-emitting diode 312, the second light-emitting diode 314, and the common light-emitting diode 316 are connected in series with each other by the bonding wires 340, the pads 334, and the wires 332, and the third light-emitting diodes are connected in series. The body 322 is connected in parallel with the first light-emitting diode 312 and the common light-emitting diode 316, and the fourth light-emitting diode 324 and the second light-emitting diode 314 and the common light-emitting diode 316 are connected in parallel. 200930152 The light-emitting area of the first light-emitting diode 312, the second light-emitting diode 314, the first light-emitting diode 322, the fourth light-emitting diode 324, and the common light-emitting diode 316 shown in FIG. 3C is substantially All are equal, but in other implementations not shown, these illuminating dipole illumination areas may not be equal. For example, the light-emitting area of the common light-emitting diode 316 may be larger than the light-emitting area of the other light-emitting diodes. This helps to dissipate the thermal energy of the common light-emitting diode 316 to increase the lifetime of the common light-emitting diode 316. Therefore, the light-emitting areas of the light-emitting diodes shown in Fig. 3C are merely illustrative and not limiting. In addition, the common light-emitting diode 316 may be the most powerful light-emitting diode in the AC-driven light-emitting diode module 300. Thus, the brightness of the AC drive light-emitting diode module 300 can be greatly improved. [Second Embodiment] Fig. 4A is a circuit diagram showing an AC drive light emitting diode module according to a second embodiment of the present invention. Referring to FIG. 4 , the AC-driven LED module 400 of the present embodiment is similar to the AC-driven LED module 200 of the first embodiment (see FIG. 2 ). Therefore, the present embodiment will be mainly described below. The difference of the first embodiment. The AC driving LED module 400 includes a first LED group 410 and a second LED group 420, wherein the first LED group 410 includes a common LED. The number of 416s is plural, and these common light-emitting diodes 416 are connected in series with each other. The first light emitting diode group 410 further includes a plurality of first light emitting diodes 15 200930152 412 and a plurality of second light emitting diodes 414 . These first light-emitting diodes 412 are connected in series with each other, and these second light-emitting diodes 414 are also connected in series with each other. In addition, the second LED group 42 includes a plurality of third LEDs 422 and a plurality of fourth LEDs 424, wherein the second LEDs 422 are connected in series with each other, and the fourth The light emitting diodes 424 are connected in series with each other. In addition, the number of the first light-emitting diodes 412, the number of the second light-emitting diodes 414, the number of the third light-emitting diodes 422, the fourth light-emitting diodes 424, and the common light-emitting diodes The number of 416s can be equal, as shown in FIG. The AC driving LED module 4 includes a plurality of first LEDs 412, a plurality of second LEDs 414, a plurality of third LEDs 422, and a plurality of fourth LEDs. The body 424 and the plurality of common light-emitting diodes 416 'and thus the voltage of the alternating current V2 can be distributed to the light-emitting diodes', that is, the light-emitting diodes can share the voltage of the alternating current V2. When the AC drive LED module 4 includes a sufficient amount of illumination © the diode, the AC drive LED module 400 can withstand the voltage of the AC V2. That is to say, the AC drive LED module 4 can directly receive the high voltage AC V 2 , such as the mains, without a transformer. Thus, the alternating current V2 is not depleted by the transformer, and the luminous efficiency of the alternating current driving light emitting body group 400 can be further improved. It should be noted that although FIG. 4A illustrates four first light-emitting diodes 412, four second light-emitting diodes 414, four third light-emitting diodes 422, and four fourth light-emitting diodes. The body 424 and the four common illuminating 200930152 diodes 416 'but the number of the second illuminating diode 414, the third illuminating diode 422 of the present embodiment, the 发光 four illuminating diodes, and the common illuminating diode 416 The number of the four can be two, three or more. Therefore, it is emphasized that FIG. 4A is merely illustrative and does not limit the invention. 4B is a circuit diagram of another AC-driven light-emitting diode module according to the second embodiment of the present invention. Referring to FIG. 4β, the AC-driven LED module 400 includes a first-light-emitting diode group 41〇, and a second light-emitting body group 420′, wherein the first-light-emitting diode group includes The plurality of first light emitting diodes 412, the plurality of second light emitting diodes 414, and the plurality of common light emitting diodes 416. The number of the common light-emitting diodes 416 may be greater than the number of the first light-emitting diodes 412, the number of the second light-emitting diodes 414, the number of the second light-emitting diodes 422, and the fourth light-emitting diodes. The number of 424. In this way, when the AC driving LED module 4 is illuminated, the number of light-emitting diodes and the ratio of the total number of LEDs to all of the LEDs are improved, and the AC driving LED is simultaneously driven. The luminous efficiency of the body module © can also be improved. It is worth mentioning that those skilled in the art can understand how to combine the first LED group 410 (or 410') with the second LED group from FIG. 3 to FIG. 3C and the above. The set 420 is integrated into a wafer or an AC driven LED module 4 (or 400') including a circuit board. Therefore, the manufacturing method and specific structure of the AC-driven light-emitting diode modules 400, 400' will not be described here. [Third Embodiment] 17 200930152 Fig. 5 is a circuit diagram showing an AC drive light emitting diode module according to a third embodiment of the present invention. Referring to FIG. 5, the AC driving LED module 500 includes a first LED group 51A and a second LED group. The body group 420' includes a first LED group 510. The plurality of first light emitting diodes 412, the plurality of second light emitting diodes 414, and the plurality of light emitting diodes 416. The AC drive LED module 5 of the present embodiment is similar to the third embodiment of the AC drive LED module 400 (please refer to FIG. 4A), and the difference between the two is: one of the common The light emitting diode 416 is connected in parallel with another common light emitting diode 416. In particular, the shared light-emitting diodes 416 can be divided into at least two /, light-emitting diode strings 416a. The common light-emitting diodes 416 in the same common light-emitting diode string 416a are connected in series with each other, that is, the cathode end of one of the common light-emitting diode strings 416a is connected to the cathode end of the other common light-emitting diode string 416a. The anode end of one of the LED strings 41 is connected to the anode end of another shared light-emitting diode. Thus, when the common light-emitting diode 416 in one of the common light-emitting diode strings 416a fails or is damaged, the other common light-emitting diode string 416a can continue to operate without being affected. It is worth mentioning that the number of shared light-emitting diodes shown in Fig. 5 is two, and the number of common light-emitting diodes 416 included in each common light-emitting diode string 416a is two. However, in other embodiments not shown, the AC driving LED module 5A may include three or more common LED strings 4l6a, and each of the common LEDs 18303030 416a may include three or more common light emitting diodes 416. Of course, each of the common light-emitting diode strings 4l6a may also include only one (four) light-emitting diode. It is also said that these common (four) photodiodes 416 can be connected in parallel with each other. In addition, for a different requirement, the number of the common light-emitting diodes 416 included in the light-emitting diode string 416a may be shared by the common light-emitting diodes 416 included in the common light-emitting diode string 416a. The quantities are not equal. In addition, although the first light-emitting diodes 412, the first light-emitting diodes 414, the third light-emitting diodes 422, the fourth light-emitting diodes 424, and the common light-emitting diodes are illustrated in FIG. The number of the bodies 416 is the same, but in other embodiments of the non-fins, the number of the common light-emitting diodes 416 may be greater than the number of the first light-emitting diodes 4'12^^, these second light-emitting diodes The number of the bodies 414, the number of these third light-emitting diodes 422, and the number of these fourth light-emitting diodes 424. It is to be understood from the above-mentioned inner valley that the connection manner of the common light-emitting diodes 416 0 shown in Fig. 5 and the number of all the light-emitting diodes are merely illustrative, and the present invention is not limited thereto. In addition, those skilled in the art familiar with the present invention can learn how to integrate the first LED group 510 and the second LED group 42 into a wafer, or manufacture from FIG. 3C and the above. The AC drive LED module 5 including the circuit board is provided. Therefore, the manufacturing method and specific structure of the AC-driven light-emitting diode module 5A will not be described here. In summary, by sharing the light emitting diode, when the AC driving light emitting diode 19 200930152 polar body module emits light, the present invention can increase the number of actually emitting light emitting diodes and all of the light emitting diodes thereof. The proportion of the total. Compared with the prior art, the present invention can improve the luminous efficiency of the AC-driven LED module. Secondly, when the number of the shared light-emitting diodes is greater than the number of the first light-emitting diodes, the number of the second light-emitting diodes, the number of the third light-emitting bodies, and the number of the fourth light-emitting diodes At that time, the number of actually-emitting f-light diodes and the ratio of them to the total number of all the light-emitting bodies can be increased. Thus, the present invention can further improve the luminous efficiency of the AC-driven LED module. Furthermore, the power of the shared light-emitting diode may be greater than the power of the first light-emitting diode, the power of the second light-emitting diode, and the power of the third light-emitting diode. This can greatly increase the brightness of the AC drive-polar module.

❿ Although the invention Ρ , ,,.

20 200930152 准 ο [Simplified description of the drawings] Fig. 1 is a schematic circuit diagram of a conventional AC-driven light-emitting diode. 2 is a circuit diagram of a module of an AC-driven light-emitting diode according to a first embodiment of the present invention. 3A to 3C are top plan views of various AC driven LED modules according to the circuit of FIG. 2. 4 is a circuit diagram of an AC driven LED module according to a second embodiment of the present invention. 4 is a circuit diagram of another AC-driven LED module according to a second embodiment of the present invention. Fig. 5 is a circuit diagram showing an AC drive light emitting diode module according to a third embodiment of the present invention. [Main component symbol description] ••❹ 100, 200, 200', 300, 400, 400, 500: AC drive LED module: 110, 120: LED series 112, 122: LED Body 130: transformers 210a, 210b, 310, 410, 410', 510: first light-emitting diode group 212, 312, 412: first light-emitting diode 21 200930152 214, 314, 414: second light-emitting diode Body 216a, 216b, 316, 416: common light-emitting diodes 220, 320, 420: second light-emitting diode group 222, 322, 422: third light-emitting diode 224, 324, 424: fourth light-emitting two Polar body 230: substrate 240 · Patterned wiring layer 242, 332: wiring ❹ 244, 334: pad 330: wiring board 340: bonding wire 416a: common light-emitting diode string VI, V2: alternating current

twenty two

Claims (1)

200930152 X. Patent application: 1. An AC driven LED module comprising: a first LED group comprising: at least one first LED; at least one second LED At least one common light-emitting diode, wherein all of the light-emitting diodes of the first light-emitting diode group are connected in series with each other; and a second light-emitting diode group includes at least one third light-emitting diode a second light-emitting diode is connected in parallel, and the third light-emitting diode is connected in parallel to the common light-emitting diode; and x- at least one fourth light-emitting diode is connected in parallel to the second light-emitting diode a diode, and the fourth light-emitting diode is connected in parallel to the common light-emitting diode. 2. The AC-driven light-emitting diode module of claim 1, wherein the power of the common light-emitting diode is greater than the power of the first light-emitting diode: the power of the body, the second light-emitting diode The power, the power of the third light emitting diode, and the power of the fourth light emitting diode. 3. The AC-driven light-emitting diode module of claim 1, further comprising a circuit board, wherein the first light-emitting diode, the second light-emitting diode, and the third light-emitting diode The polar body, the fourth light emitting diode, and the common light emitting diode are disposed on the circuit board. 4. The AC-driven LED module of claim 3, wherein the common LED has a larger illumination area than the first illumination 23 200930152 diode, the second LED, a light-emitting area of one of the third light-emitting diode and the fourth light-emitting diode. 5. The AC-driven light-emitting diode module of claim 3, wherein the first light-emitting diode, the second light-emitting diode, the third light-emitting diode, and the fourth light-emitting body The light-emitting areas of the diode and the common light-emitting diode are substantially equal. 6. The AC-driven light-emitting diode module of claim 1, wherein the first LED group and the second LED group are integrated into a wafer. 7. The AC-driven light-emitting diode module of claim 1, wherein the number of the common light-emitting diodes is plural. 8. The AC-driven light-emitting diode set according to claim 7, wherein the common light-emitting diodes are connected in series with each other. 9. The AC-driven LED module as described in claim 7 of the patent application, wherein one of the common light-emitting diodes is connected in parallel with the other common light-emitting diode. 10. The AC-driven light-emitting diode according to claim 7, wherein the number of the first light-emitting diodes is plural, and the plurality of light-polar bodies are connected in series with each other, the first The number of the two light-emitting diodes is such that the second light-emitting diodes are connected in series with each other, the third light-emitting diodes are plural, and the third light-emitting diodes are connected in series with each other. The number is plural, and the fourth light-emitting diodes are connected in series with each other. 11. The AC drive illumination 24th 200930152 polar body module according to claim 10, wherein the number of the common light emitting diodes is greater than the number of the first light emitting diodes, and the second The number of the light emitting diodes, the number of the third light emitting diodes, and the number of the fourth light emitting diodes. 12. The AC-driven light-emitting diode module of claim 10, wherein the number of the first light-emitting diodes, the number of the second light-emitting diodes, and the third light-emitting diodes The number of poles, the fourth light-emitting diodes, and the number of the common light-emitting diodes are all equal. 25