201133001 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種電致發光二極體組件之編組或標記方 法及電致發光二極體組件。 本專利申請案主張德國專利申請案10 2010 009 718.7 之優先權’其已揭示的整個內容透過引用倂入於此。 電致發光二極體組件在藉由製造商來提供時就亮度而 言通常須滿足嚴格的要求。在像汽車頭燈之類的L E D模組 中’由於法律上之條文和規章而需要滿足正確的規格。 【先前技術】 在電致發光二極體組件之傳統式編組方法中，全部的 電致發光二極體組件都以預設的電流強度來操作且各電致 發光二極體組件劃分成不同的亮度編組（所謂的箱 (Bins))。此方法亦稱爲亮度-分箱法。就以預設的目標亮度 的一種應用而言’只由與預設之目標亮度對應之亮度編組 中選取發光二極體晶片。在此種情況下，亮度編組不同的 電致發光二極體組件不能用於該應用中。 特別是在汽車領域或交通信號用之電致發光二極體組 件中，製造商通常須確保在多年的時段中都可滿足預設的 規格。在此種情況下，甚至可能需要藉由相互的措施（例 如，施加一種可部份地具有吸收性的層）來補償由於電致發 光二極體晶片之效率的提高所造成之較高的光效益。 【發明內容】 201133001 本發明的目的是提供一種電致發光二極體組件之編組 或標記方法及電致發光二極體組件，其可確保電致發光二 極體組件在操作時發出一種具有預設之目標亮度的光。 上述目的藉由申請專利範圍獨立項所述之電致發光二 極體組件之編組或標記方法及電致發光二極體組件來達 成。 在電致發光二極體組件之編組或標記方法中，製備多 個電致發光二極體組件。該等電致發光二極體組件可以是 LED晶片或具有殼體或無殼體之雷射二極體晶片。又，電 致發光二極體組件亦可以是LED模組或具有多個LED晶片 之雷射模組或雷射二極體晶片。 在上述方法中，爲了達成一預設之目標亮度Φ〇，須對 每一個電致發光二極體組件測量所需之額定電流強度1〇。 因此，測出須以何種電流強度1〇來操作電致發光二極體組 件，以便達成預設之目標亮度。 然後，在上述方法中，依據所測得之額定電流強度1〇 來對電致發光二極體組件進行編組或標記。 在一有利的佈置中，電致發光二極體組件之編組是以 下述方式來進行：將電致發光二極體組件分類成多個組， 其分別具有一種編組用電流強度Ig，其中一組之電致發光 二極體組件之額定電流強度U與該編組用電流強度Ig之差 値不超過一種可靠之容許度AIg。因此，|iD_lg| $AIg。 此處所述之方法中’相對於一般之亮度編組而言，電 201133001 致發光二極體組件不是以亮度編組來劃分’而是將全部之 電致發光二極體組件設定成以該目標亮度來操作，此時 須測量所需的電流強度1〇且各電致發光二極體組件劃分成 額定電流強度近似相同之多個組。當使用者調整該編組用 電流強度Ig時，預設之目標亮度Φ〇在一可靠之容許度內 達成。在此種編組方法中，次級品少於傳統的編組方法， 此乃因除了可能有缺陷的電致發光二極體組件以外，全部 的電致發光二極體組件都在所期望之目標亮度Φ〇中操作。 以額定電流強度U來標記電致發光二極體組件時例如 可藉由額定電流強度1〇來對電致發光二極體組件進行標 記。 在一較佳的佈置中，電致發光二極體組件具有一記憶 體模組且以額定電流強度1〇來達成的特徵是：針對該目標 亮度Φο所需之額定電流強度1〇是儲存在該記憶體模組 中。在此種情況下，達成該目標亮度Φ〇時所需之額定電流 強度1〇可有利地在每一個電致發光二極體組件中由該記憶 體模組中呼叫出，使該額定電流強度1〇例如可自動地由一 驅動電路來調整。 有利的方式是，亦可測量電致發光二極體組件之其它 電性參數或光學參數且儲存在該記憶體模組中。該等參數 特別是可以爲該電致發光二極體組件之彩色、彩色位置、 亮度或前向電壓。 亦可將一個或多個其它的電流強度儲存在該記憶體模 201133001 組中，這些電流強度是達成一種或多種其它的目標亮度所 需要者。這在電致發光二極體組件是在不同的亮度中操作 時特別有利。例如，電致發光二極體組件可以是用於汽車 頭燈之LED模組，其具有不同的目標亮度。在一種前頭燈 的情況下，例如可對白天旅行時的光線、近光或遠光設定 不同的目標亮度。在尾部發光體的情況下，例如可對停車 的燈光、後燈或刹車燈設定不同的亮度。 達成該目標亮度Φα時所需之額定電流強度U之測量 較佳是以下述方式來進行：連續地將電流強度提高且對亮 度進行測量。此測量可有利地以較快的速率來進行，例如， 可在25毫秒的時段中進行。爲了測量亮度，較佳是使用一 種光二極體。 在一有利的佈置中，在測量該額定電流強度1〇之後， 進行其它的測量，以便在額定電流強度1〇時對該電致發光 二極體組件進行標記。例如，可設定該額定電流強度1〇， 且藉由光譜計來測量該電致發光二極體組件所發出之輻射 之光譜。又，可測量電致發光二極體組件之多種電性，例 如，前向電壓。 在另一佈置中，在電致發光二極體組件被編組及/或標 記之後進行一種控制測量，其中須對爲了達成預設的目標 亮度所需之額定電流強度之測量重複地進行且以此種方式 來檢測：該電致發光二極體組件是否配屬於正確之編組用 電流強度Ig及/或正確的額定電流強度IQ是否儲存在該電 201133001 致發光二極體組件之記憶體模組中。在該控制測量時若已 確定存在一種偏差，則該電致發光二極體組件須剔除及/或 重新進行上述方法。或是，在該控制測量中》亦須設定所 需之額定電流強度1〇且將所達成的亮度與目標亮度φ0作 比較。當所測得的亮度φ與該目標亮度Φ〇偏差之程度超過 一可靠的容許度時，該電致發光二極體組件須剔除。 本發明的電致發光二極體組件較佳是具有至少一電致 發光二極體和一記憶體模組，其中在該記憶體模組中儲存 著要達成一預設之目標亮度Φ〇時所需之額定電流強度1〇。 該電致發光二極體組件較佳是具有一驅動電路，其中 此驅動電路是用來以該記憶體模組中所儲存的額定電流強 度U來驅動該發光二極體。此種方式的優點是，一使用者 只需將該電致發光二極體組件連接至電壓源，此時該驅動 電路自動以達成一預設之亮度時所需之額定電流強度1〇來 驅動該電致發光二極體組件》 該電致發光二極體組件之至少一電致發光二極體可以 是LED或雷射二極體。 在一有利的佈置中’該電致發光二極體組件是一種具 有多個LEDs之LED模組。該LED模組特別是可爲汽車頭 燈或交通信號燈。 本發明以下將依據.第1圖至第3圖來詳述。 【實施方式】 第1圖中顯示本發明的電致發光二極體組件之編組及/ 201133001 或標記方法之實施例的流程圖。 本方法中，製備多個電致發光二極體組件，其例如是 具有或未具有殼體之發光二極體晶片或雷射二極體晶片° 電致發光二極體組件亦可以是LED模組或具有多個LED晶 片或多個雷射二極體晶片之雷射模組。 第1圖所示的第一步驟中，對達成該電致發光二極體 組件之預設之目標亮度Φα時所需之額定電流強度“進行 測量。該目標亮度Φ〇是與該電致發光二極體組件之預設的 使用狀況有關且特別是可由汽車頭燈或交通信號燈用的法 定之規章或準則而得知。 達成一預設之目標亮度時所需之額定電流強度I。之測 定將依據第2圖來詳述。進行一種電流斜度測量，其中在 一預定的測量時段（其例如可爲25毫秒）中使電流強度I依 據時間t而連續地上升。特別是該電流強度I可在該測量 時段中線性地上升。在該測量時段中，須測量該電致發光 二極體組件所發出之輻射之亮度Φ。由於電流強度連續地 上升，則在該測量時段中亮度Φ亦連續地上升。此亮度Φ 以輻射敏感之偵測器（較佳是光二極體）來測量。特別是可 使用光電流（單位爲流明）之實際大小作爲該亮度Φ之値。 須選取電流斜度測量時的最小和最大電流，以便在該 測量時段中的一種電流時達到預設的目標亮度Φ〇。在測量 時，須對已達到所期望之目標亮度Φο的每一個電致發光二 極體組件來測定電流強度U。 201133001 再參看第1圖，可在一種可選擇性的（optional)第二步 驟中測量各電致發光二極體組件之其它電性或光學特性。 例如，較佳是藉由準確的定電流源而以第一步驟中已測定 的額定電流強度1〇來驅動電致發光二極體組件，且該電致 發光二極體組件之光學特性例如藉由光譜計來測量。以此 方式’特別是可決定彩色及/或彩色位置。又，亦可對多種 電性進行測量，該等電性例如包括該額定電流強度IQ時所 產生之前向電壓。 在第三步驟中，在上述方法的一種變形a)中依據第一 步驟中所決定的額定電流強度1〇而將各電致發光二極體組 件分類成多個組。此種編組（亦稱爲分箱（Binning))較佳是 藉由將各電致發光二極體組件配屬於不同的編組用電流Ig 來達成。一電致發光二極體組件的額定電流強度I。若與編 組用電流Ig之偏差値超過一預設的容許度時，則該電 致發光二極體組件屬於一種具有編組用電流Ig之組。此種 分類另外亦可依據其它參數來達成，例如，可針對電致發 光二極體晶片之不同的彩色及/或不同的目標亮度來設置 不同的組。 在本方法之另一種變形b)中，各電致發光二極體組件 分別具有一記憶體模組且藉由該記憶體模組之程式化來標 記。於此，第一步驟中所決定的額定電流強度1〇被程式化， 以便在記憶體模組中達成預設的目標亮度Φ〇 »又，其它參 數亦可在該記憶體模組中被程式化。於此，該參數特別是 -10- 201133001 可爲電致發光二極體組件之光學參數或電性參數，其在第 二步驟中被確定。例如，該參數可以是電致發光二極體組 件之彩色、彩色位置或亮度。 在本方法之上述變形a)或b)中，於第四步驟中進行一 種控制測量。此控制測量中例如仍進行第一步驟中的電流 斜度測量，以便控制：所測得之額定電流強度是否與先前 所測得之額定電流強度U —致，以達成該目標亮度Φ〇。或 是，亦可設定該額定電流強度U或該編組用電流強度Ig且 檢測：以此電流所達成的亮度Φ在一可靠的容許度內是否 與預設的目標亮度Φ〇 —致。若在此控制測量中已確定一種 與額定値之間有不可靠的高偏差，則剔除該電致發光二極 體組件。否則，確認配屬於該組（所謂分類箱）之編組用電 流強度Ig或該記憶體模組之記憶內容。 在上述可選擇的控制測量之後，各電致發光二極體組 件可由製造商送出。 該編組用電流強度Ig或該記憶體模組中已程式化之額 定電流強度U可由電致發光二極體組件之使用者來設定’ 以達成預設之目標亮度Φ〇。 此處所述之電致發光二極體組件之實施例顯示在第3 圖中。電致發光二極體組件6例如包括多個LED晶片3。 這些LED晶片3例如可串聯地連接著’使全部之LED晶片 3都可由相同的電流強度所流過。LED晶片3是藉由驅動 電路2來提供電流，該驅動電路2以一預設的電流強度來 -11- 201133001 驅動LED晶片3。該驅動電路2可經由多條連接線5而連 接至外部之電壓源1。該驅動電路2例如可佈置成積體電 路（1C)。 又，電致發光二極體組件6包括記憶體模組4。此記 憶體模組4能以該額定電流強度U來程式化，這樣是需要 的，因此可使LED晶片3達成一預設的亮度Φ〇。該驅動電 路2是用來抓取該記憶體模組4的內容且以儲存在該記憶 體模組中的預設之電流強度來驅動LED晶片3。該記億體 模組4例如可積體化於該驅動電路2之積體電路中或亦可 配置在該驅動電路2之外部。電致發光二極體組件6之使 用者只需施加一種電壓源1至該電致發光二極體組件6， 以便自動地以達成該電致發光二極體組件之預設之目標亮 度Φ〇時所需之額定電流強度1〇來驅動LED晶片3。這在 該電致發光二極體組件6是LED模組時特別有利，該LED 模組所發出之亮度須滿足規定的需求。該電致發光二極體 組件6特別是一種交通信號燈或汽車頭燈。 在較長的驅動期間之後例如由於電致發光二極體晶片 之老化而使亮度偏離預設之目標亮度Φ〇時，重新將該記億 體模組予以程式化亦是有利的。在此種情況下，重複此處 所述的方法且需要時將該記憶體模組中的其它額定電流強 度予以程式化，此時又可達成該目標亮度Φ〇。 本發明當然不限於依據各實施例中所作的描述。反 之，本發明包含每一新的特徵和各特徵的每一種組合，特 -12- 201133001 別是包含各申請專利範圍或不同實施例之各別特徵之每一 種組合，當相關的特徵或相關的組合本身未明顯地顯示在 各申請專利範圍中或各實施例中時亦屬本發明。 【圖式簡單說明】 第1圖是本發明的方法之實施例的流程圖。 第2圖是對達成一預設之目標亮度Φ〇時所需之額定電 流強度1〇進行測定之步驟來作說明的圖解。 第3圖是本發明之電致發光二極體組件之實施例之 圖。 【主要元件符號說明】 1 電壓源 2 驅動電路 3 電致發光二極體晶片 4 記憶體模組 5 連接線 6 電致發光二極體組件201133001 VI. Description of the Invention: [Technical Field] The present invention relates to a grouping or marking method of an electroluminescent diode assembly and an electroluminescent diode assembly. The present application claims the priority of the German Patent Application No. 10 2010 009 718.7, the entire disclosure of which is hereby incorporated by reference. Electroluminescent diode components are often required to meet stringent requirements in terms of brightness when provided by the manufacturer. In L E D modules such as car headlights, the correct specifications need to be met due to legal provisions and regulations. [Prior Art] In the conventional grouping method of the electroluminescent diode assembly, all of the electroluminescent diode components are operated with a preset current intensity and the electroluminescent diode components are divided into different Brightness grouping (so-called box). This method is also known as the brightness-boxing method. In one application with a preset target brightness, the light-emitting diode wafer is selected only by the brightness group corresponding to the preset target brightness. In this case, different groups of electroluminescent diodes for luminance grouping cannot be used in this application. Especially in automotive or automotive electroluminescent diode assemblies, manufacturers often have to ensure that the preset specifications are met over many years. In this case, it may even be necessary to compensate for the higher light due to the improved efficiency of the electroluminescent diode wafer by mutual measures (for example, applying a partially absorbable layer). benefit. SUMMARY OF THE INVENTION 201133001 An object of the present invention is to provide a method of grouping or marking an electroluminescent diode assembly and an electroluminescent diode assembly, which ensures that the electroluminescent diode assembly emits a pre-operational Set the light of the target brightness. The above object is achieved by a grouping or marking method of an electroluminescent diode assembly and an electroluminescent diode assembly as described in the independent patent application. In the grouping or marking method of electroluminescent diode assemblies, a plurality of electroluminescent diode assemblies are prepared. The electroluminescent diode components can be LED wafers or laser diode chips with or without housing. Further, the electroluminescent diode component can also be an LED module or a laser module or a laser diode chip having a plurality of LED chips. In the above method, in order to achieve a predetermined target luminance Φ, a required current intensity of 1 须 is required for each of the electroluminescent diode components. Therefore, it is determined which current intensity is required to operate the electroluminescent diode assembly to achieve the preset target brightness. Then, in the above method, the electroluminescent diode components are grouped or marked in accordance with the measured rated current intensity 1 。. In an advantageous arrangement, the grouping of the electroluminescent diode components is carried out in the following manner: classifying the electroluminescent diode components into a plurality of groups each having a current intensity Ig for grouping, one of which The difference between the rated current intensity U of the electroluminescent diode component and the current intensity Ig of the grouping does not exceed a reliable tolerance AIg. Therefore, |iD_lg| $AIg. In the method described here, 'relative to the general brightness grouping, the electric 201133001 electroluminescent diode component is not divided by brightness grouping' but all the electroluminescent diode components are set to the target brightness To operate, the required current intensity must be measured 1 〇 and each electroluminescent diode component is divided into groups of approximately the same rated current intensity. When the user adjusts the current intensity Ig for the group, the preset target brightness Φ is achieved within a reliable tolerance. In this grouping method, the secondary product is less than the conventional grouping method because all of the electroluminescent diode components are at the desired target brightness except for the possibly defective electroluminescent diode assembly. Φ〇 operation. When the electroluminescent diode component is marked with the rated current intensity U, the electroluminescent diode component can be marked, for example, by a rated current intensity of 1 。. In a preferred arrangement, the electroluminescent diode assembly has a memory module and is characterized by a rated current intensity of 1 是: the required current intensity 1 针对 required for the target brightness Φ is stored in In the memory module. In this case, the rated current intensity 1 所需 required to achieve the target brightness Φ 〇 can advantageously be called out from the memory module in each of the electroluminescent diode assemblies to make the rated current intensity For example, it can be automatically adjusted by a drive circuit. Advantageously, other electrical or optical parameters of the electroluminescent diode component can also be measured and stored in the memory module. These parameters may in particular be the color, color position, brightness or forward voltage of the electroluminescent diode component. One or more other current intensities may also be stored in the memory model 201133001, which is required to achieve one or more other target brightnesses. This is particularly advantageous when the electroluminescent diode component is operated in different brightness levels. For example, the electroluminescent diode assembly can be an LED module for automotive headlamps that has different target brightness. In the case of a headlight, for example, different target brightnesses can be set for light, low beam or high beam during daytime travel. In the case of a tail illuminant, for example, different brightness can be set for the parking light, the rear light or the brake light. The measurement of the rated current intensity U required to achieve the target luminance Φα is preferably carried out in such a manner that the current intensity is continuously increased and the luminance is measured. This measurement can advantageously be done at a faster rate, for example, in a 25 millisecond period. In order to measure the brightness, it is preferred to use a photodiode. In an advantageous arrangement, after measuring the rated current intensity of 1 ,, other measurements are taken to mark the electroluminescent diode assembly at a rated current level of 1 。. For example, the rated current intensity can be set to 1 〇, and the spectrum of the radiation emitted by the electroluminescent diode assembly is measured by a spectrometer. Also, various electrical properties of the electroluminescent diode component can be measured, for example, forward voltage. In another arrangement, a control measurement is performed after the electroluminescent diode components are grouped and/or labeled, wherein the measurement of the rated current intensity required to achieve the predetermined target brightness is repeated and Method for detecting whether the electroluminescent diode component is assigned to the correct grouping current intensity Ig and/or the correct rated current intensity IQ is stored in the memory module of the electric 201133001 electroluminescent diode component . If it is determined that there is a deviation during the control measurement, the electroluminescent diode assembly must be rejected and/or re-executed. Or, in the control measurement, the required rated current intensity must be set to 1 〇 and the achieved brightness is compared with the target brightness φ0. When the measured brightness φ deviates from the target brightness Φ 超过 by a reliable tolerance, the electroluminescent diode assembly must be rejected. Preferably, the electroluminescent diode assembly of the present invention has at least one electroluminescent diode and a memory module, wherein when the predetermined target brightness Φ 储存 is stored in the memory module The required rated current strength is 1〇. Preferably, the electroluminescent diode assembly has a drive circuit for driving the light emitting diode with a rated current intensity U stored in the memory module. The advantage of this method is that a user only needs to connect the electroluminescent diode component to the voltage source, and the driving circuit is automatically driven by the rated current intensity required to achieve a predetermined brightness. The electroluminescent diode assembly. The at least one electroluminescent diode of the electroluminescent diode assembly can be an LED or a laser diode. In an advantageous arrangement, the electroluminescent diode assembly is an LED module having a plurality of LEDs. The LED module can in particular be a car headlight or a traffic signal. The present invention will be described in detail below based on Fig. 1 to Fig. 3. [Embodiment] FIG. 1 is a flow chart showing an embodiment of the grouping of the electroluminescent diode assembly of the present invention and/or the 201133001 or marking method. In the method, a plurality of electroluminescent diode assemblies are prepared, such as a light-emitting diode wafer or a laser diode wafer with or without a housing. The electroluminescent diode assembly can also be an LED module. A laser module having a plurality of LED chips or a plurality of laser diode chips. In the first step shown in FIG. 1, the rated current intensity required to achieve the preset target luminance Φα of the electroluminescent diode assembly is measured. The target luminance Φ 〇 is the same with the electroluminescence. The pre-determined usage of the diode assembly is relevant and can be known, inter alia, by statutory regulations or guidelines for automotive headlights or traffic lights. The rated current intensity I required to achieve a predetermined target brightness. A current slope measurement will be made in accordance with Figure 2. The current intensity I is continuously increased in accordance with time t for a predetermined measurement period (which may be, for example, 25 milliseconds). In particular, the current intensity I It can rise linearly during the measurement period. During the measurement period, the brightness Φ of the radiation emitted by the electroluminescent diode component must be measured. Since the current intensity continuously rises, the brightness Φ is also measured during the measurement period. Continuously rising. This brightness Φ is measured by a radiation-sensitive detector (preferably a photodiode). In particular, the actual size of the photocurrent (in lumens) can be used as the brightness Φ The minimum and maximum currents for current slope measurement shall be selected to achieve a preset target brightness Φ 一种 for one of the current periods of the measurement period. For each measurement, the desired target brightness Φο must be achieved. Electroluminescent diode assembly to measure current intensity U. 201133001 Referring again to Figure 1, other electrical or optical properties of each electroluminescent diode component can be measured in an optional second step. For example, it is preferred to drive the electroluminescent diode assembly by the accurate current source and the rated current intensity 1 已 measured in the first step, and the optical characteristics of the electroluminescent diode component are, for example, It is measured by a spectrometer. In this way, in particular, the color and/or color position can be determined. In addition, a plurality of electrical properties can be measured, for example, including the forward voltage generated when the rated current intensity IQ is generated. In a third step, each of the electroluminescent diode components is classified into a plurality of groups in a variant a) of the above method in accordance with the rated current intensity 1〇 determined in the first step. The grouping (also known as binning) is preferably achieved by assigning each electroluminescent diode component to a different grouping current Ig. The rated current intensity I of an electroluminescent diode component If the deviation from the grouping current Ig exceeds a predetermined tolerance, the electroluminescent diode component belongs to a group having a grouping current Ig. This classification can also be achieved according to other parameters. For example, different sets of different colors and/or different target brightnesses of the electroluminescent diode chips can be provided. In another variant b) of the method, each of the electroluminescent diode components has a respective The memory module is marked by the stylization of the memory module. Here, the rated current intensity determined in the first step is programmed to achieve a preset target brightness in the memory module. Φ〇» Again, other parameters can also be programmed in the memory module. Here, the parameter, in particular -10- 201133001, can be an optical or electrical parameter of the electroluminescent diode component, which is determined in the second step. For example, the parameter can be the color, color location or brightness of the electroluminescent diode component. In the above variant a) or b) of the method, a control measurement is carried out in the fourth step. In this control measurement, for example, the current slope measurement in the first step is still performed to control whether the measured rated current intensity is equal to the previously measured rated current intensity U to achieve the target brightness Φ 〇. Alternatively, the rated current intensity U or the current intensity Ig for the grouping may be set and detected whether the brightness Φ achieved by the current is consistent with the preset target brightness Φ within a reliable tolerance. If an unreliable high deviation from the rated enthalpy has been determined in this control measurement, the electroluminescent diode assembly is rejected. Otherwise, it is confirmed that the current intensity Ig of the group assigned to the group (so-called class box) or the memory content of the memory module. After the above optional control measurements, the individual electroluminescent diode assemblies can be delivered by the manufacturer. The grouping current intensity Ig or the programmed current intensity U in the memory module can be set by the user of the electroluminescent diode assembly to achieve a predetermined target brightness Φ 〇. An embodiment of the electroluminescent diode assembly described herein is shown in FIG. The electroluminescent diode assembly 6 comprises, for example, a plurality of LED wafers 3. These LED chips 3 can be connected, for example, in series so that all of the LED chips 3 can flow through the same current intensity. The LED chip 3 is supplied with current by a driving circuit 2 which drives the LED chip 3 with a predetermined current intensity of -11-201133001. The drive circuit 2 can be connected to an external voltage source 1 via a plurality of connecting lines 5. The drive circuit 2 can be arranged, for example, as an integrated circuit (1C). Further, the electroluminescent diode assembly 6 includes a memory module 4. The memory module 4 can be programmed with the rated current intensity U, which is required, so that the LED chip 3 can achieve a predetermined brightness Φ 〇. The driving circuit 2 is for grasping the content of the memory module 4 and driving the LED chip 3 with a preset current intensity stored in the memory module. The mega-body module 4 can be integrated, for example, in the integrated circuit of the drive circuit 2 or can be disposed outside the drive circuit 2. The user of the electroluminescent diode assembly 6 only needs to apply a voltage source 1 to the electroluminescent diode assembly 6 to automatically achieve the preset target brightness Φ of the electroluminescent diode assembly. The rated current intensity required at the time is 1 驱动 to drive the LED chip 3. This is particularly advantageous when the electroluminescent diode assembly 6 is an LED module, the brightness of which is required to meet the specified requirements. The electroluminescent diode assembly 6 is in particular a traffic signal or a car headlight. It is also advantageous to reprogram the module when the brightness is deviated from the preset target brightness Φ 例如 after a longer driving period, for example due to aging of the electroluminescent diode wafer. In this case, the method described herein is repeated and other rated current levels in the memory module are programmed as needed, at which point the target brightness Φ 又 can be achieved. The invention is of course not limited to the description made in accordance with the various embodiments. Conversely, the present invention encompasses each novel feature and each combination of features, and each of the combinations of the various features of the various claims or the various embodiments, when related features or related The present invention is also not explicitly shown in the scope of each patent application or in the various embodiments. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart showing an embodiment of the method of the present invention. Fig. 2 is a diagram for explaining the steps of measuring the rated current intensity 1 所需 required to achieve a predetermined target luminance Φ 。 . Figure 3 is a diagram of an embodiment of an electroluminescent diode assembly of the present invention. [Main component symbol description] 1 Voltage source 2 Driving circuit 3 Electroluminescent diode chip 4 Memory module 5 Connection line 6 Electroluminescent diode assembly