200808121 九、發明說明： 【優先權】 10 2006 029 957.4， 【發明所屬之技術領域】 本發明係關於一種發光裝置。 【先前技術】 歐洲專利_ G7934G2號B1專利所描述之—發光裝置 【發明内容】 小一依據本酬之發絲置的至少—實酬，所述發絲置包含至 夕-個彼此麟連結之糊面，較佳鱗—糊面&含至少二個彼 此串聯連結之輻射發射半導體裝置。 曰所述半導體裝置較佳為發光二極體晶粒或發光二極體。在本發 月了 發光一極體應被理解為一輻射發射半導體裝置，而其包含 至^一發光二極體晶粒，以及同時具有外部連結位置，藉此所述發 光一極體之所述發光二極體晶粒可為電性接點連結。而所述發光二 極體進步可為一無機發光二極體或一有機發光二極體（OLed)。 然而’亦可使用雷射二極體晶粒或雷射二極體來做為半導體敦 置。 1 依據本發明之至少一實施例，所述發光裝置至少包含二個縱剖 5 200808121 面，而每一縱剖面包含至少一節點。較佳地，所述發光裝置之每一 縱剖面包含至少一節點。 依據本剌之發絲獅至少—實關，所述發絲置更包含 至少一檢向連結（transverse connection)。而所述橫向連結可電性導 電連結一縱剖面之一節點至另一縱剖面之一節點。 依據本發明之發絲置的至少—實酬，所賴向連結包含一 限流元件（current-limiting element)。舉例來說，為了達到此一目的 所述檢向連結可由所述限流元件或至少包含所舰流元件而組成。 依據本發明之發光裝置的至少一實施例，所述發光元件更包含 二個連結錄，喊由發光駭之所魏勤_述連結位置 I以共同電性接點賴。若在所述發絲置之所述連結位置施加一 合適電壓，較佳地，所述發光裝置之所述_發射半導體裝置會產 ^電磁輻射。而合適電壓應被理解為在所述鋪發射轉體裝置之 操作上，一電壓具有正確極性和合適磁性。 I依據本發明之發光裝置的至少一實施例，所述發光裝置包含至 少二個彼此並聯連結之縱剖面，以及每一所述縱剖面包含彼此串聯 連結之輻射發射半導體裝置。在本實施例中，至少兩個縱剖面分別 包合至少-節點。所述發絲置更包含至少—橫向連結，而所述橫 ，連結電，傳導連結—縱剖面之所述節點至另—縱剖面之所述節 點。在本實施例中，所述橫向連結包含一限流元件。而所述發光裝 置更包含兩個連結位置，所述縱勤可以藉由所述連結位置而共同 電性地接點連結。 立依2本發明之發光裝置的至少一實施例，所述發光裝置之一縱 d面的每一節點係藉由一橫向連結，而電性導電地連結至所述發光 6 200808121 f 剖面的—節點。較佳地，每—縱剖面之每一節點雜 吉，地連結至另—縱剖面 :巧猎 及藉著盆第-舰决二 弟一縱剖面之所述節點，以 弟-編點末連結-第二縱剖面之所述節點。 件。+可能針對每―橫向連結包含-限流元 此等产向扭 1能針絲向連結沒有—限流元件。然後， 、一連、、，。在_縱勤之_節點 在所述節狀财具有—麟耕。$ m ’也就疋 - 之至少一實施例’在所述發光裝置之一縱剖面的每 也^ :、I ‘體裝置，係被指定於—橫向區域之-限流元件。這 雜轉體裝置失效(換言之，像是所述半 t限大的電阻），則電流會被導引至所述限流元件， 由限流兀件來提供壓降。 依據本發明之發光裝置的至少—實施例…_面之每— 發射半導舰麵唯-地定於—橫向連結之—限流元件。這也 就是說，對於每-浦發射轉難置有—限流元件在—橫向連結 上。在本實施僧，有可能對於所述限流元件需對應超過一個輕射 發射半導體裝置。 依據本發明之發光裝置的至少一實施例，所述發光裝置之一縱 剖面的每-娜發射半導«置，係被安置於所述縱剖面之兩節點 之間。較佳地，每一所述節點係藉由一橫向連結來電性導電地連結 至另縱剖面之-節點’而更佳地，連結在—最靠近的鄰近縱剖面 上。在本實施例中，每一所述橫向連結可包含一限流元件。然而， 這也很可能只針對被選定的橫向連結才會包含這樣的一限流元件。 7 200808121 任二t施例，_於—第—縱剖面之—最靠近的鄰近縱剖面係 έ士:柏弟—縱σ彳面’其切述第—縱剖面之—節點係藉由一橫向連 、地連結至·第二_面之所述_。這擔是說所述橫向 連、、、。直接地彼此連結所述兩縱剖面，而沒有連結至一插入的縱剖面。 依據本發明之發絲置醜少—實酬，面之每___ 分別藉由-橫向連結電性導電地連結到另—縱剖面之至多兩節點。 較υ面之母一節點係藉由-橫向連結來電性導電地連結 到-最靠近的鄰近縱剖面之—節點。因為所述縱剖面係彼此並聯^ 結’而每-縱剖面具有至多兩個最靠近的鄰近縱剖面。 依據本發明之發光裝置的至少—實關，所述發級置之每一 縱抽係藉由至少包含—限流元件之—橫向連結，而雛導電地連 結至另-縱剖面。較佳地，在本實施例巾，每—縱勤係唯一地連 結至最靠近_近縱勤，因此每—縱勤係#由—橫向連結來連 結至多兩個鄰近縱剖面。 依據本發明之至少一實施例，一橫向連結之所述限流元件係一 表面嵌合裝置。此一表面嵌合裝置係特別地可用簡單及空間節省嵌 合方式而（與其他裝置）有所區隔。舉例來說，「表面嵌合裝置」 寫為SMD)此詞彙意指此等裝置像是電阻或二極體，而與固定穿透 嵌合方式（lead through mounting)比起來，其係不具有導線連結， 而是藉由可焊接連結接腳而直接地焊接在一電路版或一連結載體 上。其相關技術係表面嵌合技術（縮寫為SMT)。 依據本發明之發光裝置的至少一實施例，所述發光裝置之所述 橫向連結的每一個限流元件分別係由一歐姆電阻所組成。在本實施 例中，所述電阻可為一表面嵌合電阻。 200808121 依據本發明之發絲置的至少_實_，所述限流元件包含兩 個-極體彼此逆向細雜（冑靠背）。糊來說，所述二極體可為 —Hit Oetif—S)、曾納二鋪（zenerdiGdes)或其他 發光二極體。 依據本發明之發光裝置的結—實酬，所述發絲置之所述 輛射發射半導體裝置係由發光二極體晶粒所組成 。較佳地，所述橫 向連結之所述限流元件係由表秘合裝置所組成，例如：表面嵌合 歐姆電阻絲酿合二極體。紐地，元件（限流元件及輕射 發射半導體裝置）係安置在一通用連結載體上。 舉例來说，所述通用連結載體可為一電路板包含一電性絕緣基 體，以及在該基體上圖案化之電性可導電的導電徑（conductor track )。較佳地，所述連結載體係一金屬核心電路板或一印刷電路板。 依據本發明之發光裝置的至少一實施例，所述發光裝置之每一 縱剖面包含至少一限流元件，而其與所述縱剖面之一輻射發射半導 體裝置串聯連結。較佳地，所述限流元件係由可被共同地安置於一 通用連結載體上，所述發光裝置之其他元件的表面嵌合裝置所組成。 依據本發明之發光裝置的至少一實施例，一限流裝置係與所述 毛光衣置之母一縱剖面串聯連結。較佳地，所述限流裝置串聯連結 至所述縱剖面或一縱剖面之所述輻射發射半導體裝置係一歐姆電 阻’更佳地，係一表面飯合歐姆電阻。 在此所描述之發光裝置，將在以下例示性實施例與相關圖. 有更詳盡的解釋。 【實施方式】 9 200808121 在圖不的貝施例中’在母-情況中，相同或相等作用的組成部 件係提供以_的參考符號。為求進—步的理解嘴 等同於真實的比例，而個別的元件可繪示以誇張的尺寸。牛亚非 第1圖係繪示依據本發明所述發光裝置的—第一例示性實施例。 所述發光裝置包含輻射發射半導體褒置i之一串聯連結金 連結的組合。舉娜說，舖㈣轉雜聽極 在第1 ®之例示性實關巾，·發紐置包含三個縱剖面 Ll L2 L3每縱剖面Ll、L2、L3包含兩個彼此串聯連結 射發射半導體裝置1 一代表的限献件5係與每—縱剖面li L3之所述輕射發射半導體裝置！串聯連結。所述限流元件5較 歐姆電阻。 、 所述縱剖面L1具有-準確且最靠近的鄰近縱剖面，亦即所述縱 剖面L2。所述縱剖面L2則具有兩個準確且最靠近鄰近縱剖面，亦 即所述縱剖面L1與L3，並且L2係直接連結至L1與L3。所述縱剖 面L3八有準確且敢罪近鄰近縱剖面，亦即所述縱剖面^2。 一縱剖S U、L2、L3之每-節點2係藉由-橫向連結3電性 導電地連結至―农靠近鄰近縱剖面之-節點。較佳地，藉由一樺向 連結3讓所述節點2互相連結且具有相同電位。 只^ Α第1圖之例示性實施例中，每一縱剖面之一節點係藉由包含一 限二L元件4的;^向連結3，而準確地連結至—最靠近的鄰近縱剖面之 一節點2。舉例來說，所述限流元件4係一歐姆電阻。 舉例來說，在第1圖所描述發光裝置之例示性實施例中，若在 所述發光裝置左下角之輻射發射半導體裝置失效，所述半導體裝置 200808121 之，阻值變成無社。由於電齡b所施加頌輕域置之電流 固定，然後電流經過所述限流元件4a而流入所述縱剖面u。在= ==，所述限流元件4&係以此種方式來避免一超額電流流經所述 1九衣置之其他且有魏的㈣發難置。以這樣的方式，在所述 橫向連結3上之限流元件4、#可以增加所述輕射發射半導體裝置 之使用年限。200808121 IX. Description of the invention: [Priority] 10 2006 029 957.4, Technical Field of the Invention The present invention relates to a light-emitting device. [Prior Art] European Patent _ G7934G2 No. B1 Patent--Light-emitting device [Summary of the Invention] The first one is based on at least the actual payment of the hair, and the hairline is included in the evening. Paste, preferably scale - paste & contains at least two radiation-emitting semiconductor devices connected in series to each other. Preferably, the semiconductor device is a light emitting diode die or a light emitting diode. In the present month, a light-emitting diode is to be understood as a radiation-emitting semiconductor device, which comprises a light-emitting diode die, and at the same time has an external connection position, whereby said light-emitting body is described The light emitting diode crystal grains may be electrically connected. The light-emitting diode can be an inorganic light-emitting diode or an organic light-emitting diode (OLed). However, laser diode or laser diodes can also be used as semiconductors. 1 In accordance with at least one embodiment of the present invention, the illumination device includes at least two longitudinal sections 5 200808121 faces, and each longitudinal section includes at least one node. Preferably, each longitudinal section of the illumination device comprises at least one node. According to the hair lion of the present invention, at least the real hair, the hairline further comprises at least one transverse connection. The lateral connection electrically connects one of the nodes of one longitudinal section to one of the nodes of the other longitudinal section. At least the actual position of the hairline according to the present invention comprises a current-limiting element. For example, in order to achieve this, the direction-finding link may consist of the flow restricting element or at least a ship-bearing element. According to at least one embodiment of the illuminating device of the present invention, the illuminating element further comprises two linked recordings, and the connecting position I of the illuminating device is connected by a common electrical contact. Preferably, the _emission semiconductor device of the illuminating device generates electromagnetic radiation if a suitable voltage is applied to the bonding position of the hairline. A suitable voltage is to be understood as a voltage having the correct polarity and suitable magnetic properties in the operation of the transflective device. According to at least one embodiment of the illuminating device of the present invention, the illuminating device comprises at least two longitudinal sections connected in parallel with each other, and each of the longitudinal sections comprises a radiation-emitting semiconductor device connected in series to each other. In this embodiment, at least two longitudinal sections respectively comprise at least a node. The hairline further comprises at least - a transverse joint, and the transverse, joined electrical, conductive joint - the node of the longitudinal section to the node of the other longitudinal section. In this embodiment, the lateral joint comprises a current limiting element. The illuminating device further includes two connecting positions, and the vertical standing can be electrically connected to each other by the connecting position. According to at least one embodiment of the illuminating device of the present invention, each node of one of the longitudinal d-planes of the illuminating device is electrically conductively coupled to the illuminating section by a lateral connection. node. Preferably, each node of each longitudinal section is connected to another longitudinal section: the hunter and the node of the longitudinal section of the basin-ship two brothers, - the node of the second longitudinal section. Pieces. + It is possible to include - current limiting element for each "horizontal link". Then, one, one, and one. In the _longitudinal _ node in the section of the wealth has - Lin Geng. At least one embodiment of $ m ′′ is also a current-limiting element in a longitudinal section of the illuminating device, which is assigned to the lateral region. If the hybrid device fails (in other words, like the half-length resistor), current is directed to the current limiting element, and the current limiting element provides a voltage drop. At least - the embodiment of the illuminating device according to the invention - the surface of the transmitting semi-conductor is only - the transversely connected - current limiting element. That is to say, for each-pull launch, there is a - current limiting element on the - lateral link. In this embodiment, it is possible for the current limiting element to correspond to more than one light-emitting semiconductor device. In accordance with at least one embodiment of the illuminating device of the present invention, each of the longitudinal sections of the illuminating device is disposed between the two nodes of the longitudinal section. Preferably, each of said nodes is electrically coupled to a node-node of another longitudinal section by a lateral connection, and more preferably to the nearest adjacent longitudinal section. In this embodiment, each of the lateral links may include a current limiting element. However, it is also likely that such a current limiting element will only be included for the selected lateral link. 7 200808121 任二t例例, _于—The first longitudinal section—the closest adjacent longitudinal profile system gentleman: 柏弟—纵纵彳面彳's description of the first-longitudinal section—the node is made by a horizontal Connected to the ground and connected to the second_face. This is to say that the horizontal connection, , and . The two longitudinal sections are directly joined to each other without being joined to an inserted longitudinal section. According to the invention, the hair is ugly and less cumbersome, and each of the ___ is electrically connected electrically connected to at most two nodes of the other longitudinal section by a transverse connection. The node of the lower face is electrically connected to the node of the nearest adjacent longitudinal section by a lateral connection. Because the longitudinal sections are connected in parallel with each other and each longitudinal section has at most two closest adjacent longitudinal sections. In accordance with at least one of the illuminating devices of the present invention, each of the longitudinal pumping stages is electrically coupled to the other longitudinal section by at least a lateral connection of the current limiting element. Preferably, in the embodiment of the present invention, each of the longitudinals is uniquely coupled to the closest _ near-longitudinal, so that each-longitudinal system is connected by a transverse link to at most two adjacent longitudinal sections. In accordance with at least one embodiment of the present invention, a current-limiting element that is laterally coupled is a surface-engaging device. This surface fitting device is particularly distinguishable (and other devices) in a simple and space-saving manner. For example, "surface fitting device" is written as SMD. This term means that such devices are like resistors or diodes, but have no wires compared to lead through mounting. The connection is directly soldered to a circuit board or a connection carrier by solderable connection pins. A related technique is surface fitting technology (abbreviated as SMT). According to at least one embodiment of the illuminating device of the present invention, each of the current limiting elements of the lateral connection of the illuminating device is composed of an ohmic resistor. In this embodiment, the resistor may be a surface fitting resistor. 200808121 According to at least one embodiment of the hairline according to the invention, the current limiting element comprises two polar bodies which are inversely finely entangled with each other (backrest). For the paste, the diode may be -Hit Oetif-S), zenerdiGdes or other light-emitting diodes. According to the junction of the light-emitting device of the present invention, the emitter-emitting semiconductor device of the hairline is composed of light-emitting diode crystal grains. Preferably, the laterally constrained current limiting element is comprised of a table bonding device, such as a surface-fitting ohmic resistance wire brewing diode. In New Zealand, components (current limiting components and light-emitting semiconductor devices) are placed on a universal connection carrier. For example, the universal connection carrier can be a circuit board comprising an electrically insulating substrate, and an electrically conductive conductive track patterned on the substrate. Preferably, the connection carrier is a metal core circuit board or a printed circuit board. In accordance with at least one embodiment of the illumination device of the present invention, each longitudinal section of the illumination device includes at least one current limiting element coupled in series with one of the longitudinal sections of the radiation emitting semiconductor device. Preferably, the current limiting element is comprised of surface fitting means that can be collectively disposed on a universal connection carrier, the other elements of the illumination device. In accordance with at least one embodiment of the illumination device of the present invention, a current limiting device is coupled in series with a longitudinal section of the matte garment. Preferably, the current limiting device is connected in series to the longitudinal section or a longitudinal section of the radiation emitting semiconductor device with an ohmic resistance. More preferably, it is a surface rice ohmic resistor. The illuminating device described herein will be explained in more detail in the following illustrative embodiments and related figures. [Embodiment] 9 200808121 In the case of the figure, in the case of the parent, the same or equivalent components are provided with reference symbols of _. For the purpose of step-by-step understanding of the mouth is equivalent to the true proportion, and individual components can be drawn in exaggerated dimensions. Niu Yafei Figure 1 is a diagram showing a first exemplary embodiment of a light-emitting device according to the present invention. The illumination device comprises a combination of one of the radiation emitting semiconductor devices i connected in series to a gold bond. Nina said that the shop (4) turns the miscellaneous to the extreme example in the 1st ®, and the hairline contains three longitudinal sections L1 L2 L3. Each longitudinal section L1, L2, L3 contains two emitter-emitting semiconductors connected in series. The device 5 represents a limited-emission 5 and the light-emitting semiconductor device of each longitudinal section li L3! Connect in series. The current limiting element 5 is more ohmic. The longitudinal section L1 has an exact and closest adjacent longitudinal section, that is, the longitudinal section L2. The longitudinal section L2 has two exact and closest longitudinal sections, i.e., the longitudinal sections L1 and L3, and L2 is directly coupled to L1 and L3. The longitudinal section L3 is accurate and dares to approach the adjacent longitudinal section, that is, the longitudinal section ^2. Each of the longitudinal sections S U, L2, L3 is connected electrically to the node of the adjacent longitudinal section by the transverse connection 3 electrically conductively. Preferably, the nodes 2 are connected to each other and have the same potential by a birch link 3. In the exemplary embodiment of FIG. 1, one of the nodes of each longitudinal section is accurately coupled to the nearest adjacent longitudinal section by including a two-element L element 4; One node 2. For example, the current limiting element 4 is an ohmic resistor. For example, in an exemplary embodiment of the illumination device described in FIG. 1, if the radiation-emitting semiconductor device in the lower left corner of the illumination device fails, the resistance of the semiconductor device 200808121 becomes non-social. Since the electric current applied by the electric age b is fixed, the current flows through the current limiting element 4a into the longitudinal section u. In ===, the current limiting element 4& in this way avoids an excess current flowing through the other and the four (four) hair sockets. In this manner, the current limiting elements 4, # on the lateral connections 3 can increase the useful life of the light-emitting semiconductor device.
此外所述發光裝置具有連結位置6，而藉由連結位置6所 裝置可電性接點連接。 X ^在-給定群組電流為5()mA之電㈣度下，所魏射發射半導 體裝置1之順向電壓係較佳在至少L9V與至多2·5ν之間。一縱剖 面的一電阻5之電阻值以下式計算··- desired R ~ ( U3 — nUj) /1 在本貫施例中’ U3係所述橫線連結3之電壓，n係在所述縱剖 ，之輕射發射半導體裝置的數目，Ui係在所述群組電流下，所述縱 剖面之所述發光二極體的平均順向電壓，以及Idesired係通過所述輻 射發射半_裝置之所需電流。若顧需電流接近於所賴射發射 半導體裝i 1之所it群組魏時，此料細並可制紐的近似 值。而另外的替代方式，可以藉著一模擬方法來決定所述電阻值。 所述限流元件4a的電阻值係至少為2〇 〇hms，使得有足夠的電 壓值沿途遞減經過這些電阻。 弟2圖係緣示依據本發明所述發光裝置的一第二例示性實施例。 在跟第1圖所描述的例示性實施例相較之下，所述電流源15被 200808121 一電阻5所替換，並與所述縱剖面l卜L2、L3串聯連結。所述電 阻5對所述縱剖面LI、L2、L3施加一固定電流。 第3圖係繪示依據本發明所述發光裝置的一第三例示性實施 例。在跟第1圖與第2圖所描述的例示性實施例相較之下，每一所 述縱剖面U、L2、L3係藉由包含一限流元件4之一橫向連結3，而 分別電性導電連結至一最靠近的鄰近縱剖面之兩個節點2。 在跟第1圖與第2圖之發光裝置的例示性實施例相較之下，經 過量測所述發光裝置之可靠度與服務壽命皆為增加。因為在這樣的 狀況下，每一輻射發射半導體裝置1係被指定一橫向連結3之一限 流元件4。如此當任何一個所述發光裝置之所述輻射發射半導體裝置 1失效時’電流會透過限流元件4傳導出去。在這樣的情況下，所述 剩下的輕射發射半導體裝置1係被理想地保護，而不會有可能造成 所述剩餘半導體裝置損壞之一過量大電流。 此外’為了對所述發光裝置之所述縱剖面LI、L2、L3施加固 定電流’苐2圖或第1圖所描述之一限流元件5或一電流源15，可 以與苐3圖所描述發光裝置之所述縱剖面li、L2、L3串聯連結。 弟4圖係緣示依據本發明所述發光裝置的一第四例示性實施 例。在跟第3圖所描述的例示性實施例相較之下，所述橫向連結3 之所述限流元件4係由彼此逆向並聯連結之兩個二極體所組成。 為了達到此等目的，較佳地，二極體4b較適於使用一至少 100mA之順向電流，以及一至少2〇v之逆向電壓。 在弟1圖至弟3圖所描述之例不性實施例亦同，至少一個或全 部的所述橫向連結3之所述限流元件4,係由彼此逆向並聯連結之兩 個二極體所組成。 、 12 200808121 第5圖係緣示依據本發明所述發光裝置的一第五例示性實施例。 在此例碰實施例巾，所述發光裝置包含一連結載體。舉例 〜兄’所述連結載體1〇可為一電路板，而所述電路板包含由一電性 絕緣材料所製成之基體’以及在所述基體上圖案化料徑“ο— track)。在此例示性實施例中，較佳地，所述輕射發射半導體裝置係 由直接嵌合在所述電路版上之發光m減發光二極體所組 成。 舉例來說’所魏路㈣—金屬如板或—_電路板。 舉例來說’所舰流元件4、5雜佳絲面嵌合駭，例如： 表面嵌合電阻。舉絲說，所述發絲置之元件可被安置於第！圖 至第=圖所描述之發光褒置。關於第5目之所述發光裝置係特別地 可用簡單及節省成本製造而（與其他裝置）有所區隔。 在此所描述之發光裝置並不局限於縱剖面之特定數目或在一縱 ^面上輻射騎半導體裝㈣航數目。更者，本發a跡可能依據 前述之精神’將所賴紐射半導縣置之Φ聯連結及並聯連結的 組合來組成任帛尺寸的_。在輯财的發絲£制地可用長 效的，料絲與其他裝置有所區隔，因為就算是有概個輕射發 射半導體裝置失效’本發财可保護其侧餘的半導财置而免於 受到一過量的電流。 在此所述之發光裝置係特別地適合使用在頭燈，例如在汽車頭 燈上。 、 本發明並不受限於基於例示性實施例的描述，而是包括任何新 特徵與此些特徵的任何組合，即使是此些特徵與特徵的組合本身並 不明確地指定於申請專利範圍或例示性實施例中，其中該些特徵特 13 200808121 別包括在申請專利範圍中的特徵之任何組合。 【圖式簡單說明】 第1圖係繪示依據本發明所述發光裝置之一第一例示性實施例。 第2圖係繪示依據本發明所述發光裝置之一第二例示性實施例 的一概要電路圖。 第3圖係繪示依據本發明所述發光裝置之一第三例示性實施例 的一概要電路圖。 第4圖係繪示依據本發明所述發光裝置之一第四例示性實施例 的一概要電路圖。 第5圖係繪示依據本發明所述發光裝置之一第五例示性實施例 的一概要平面圖。 【主要元件符號說明】 1、la半導體裝置 2節點 3橫向連結 4、4a、5 限流元件 4b二極體 6連結位置 10連結載體 15 電流源 LI、L2、L3 縱咅丨J面 14Furthermore, the illumination device has a connection location 6, and the device is electrically connectable by means of a connection location 6. X ^ is at a power (four) degree of a given group current of 5 () mA, and the forward voltage of the Wei-emitting emission semiconductor device 1 is preferably at least between L9V and at most 2·5 ν. The resistance value of a resistor 5 in a longitudinal section is calculated by the following equation: ·· desired R ~ ( U3 — nUj) /1 In the present embodiment, the voltage of the horizontal line 3 is connected to the U3 system, and n is in the longitudinal direction. The number of light-emitting semiconductor devices, Ui is at the group current, the average forward voltage of the light-emitting diodes of the longitudinal section, and the Idesired system is transmitted through the radiation Required current. If the current is close to the group of Wei of the emitter-emitting semiconductor device i1, the material is fine and can be approximated. In another alternative, the resistance value can be determined by a simulation method. The current limiting element 4a has a resistance value of at least 2 〇 〇 hms such that a sufficient voltage value decreases across the resistance. Figure 2 is a diagram showing a second exemplary embodiment of a light-emitting device according to the present invention. In contrast to the exemplary embodiment depicted in FIG. 1, the current source 15 is replaced by a resistor 5, 200808121, and is coupled in series with the longitudinal section l L2, L3. The resistor 5 applies a fixed current to the longitudinal sections LI, L2, L3. Figure 3 is a diagram showing a third exemplary embodiment of a light-emitting device in accordance with the present invention. In contrast to the exemplary embodiments described in Figures 1 and 2, each of the longitudinal sections U, L2, L3 is electrically connected by a lateral connection 3 comprising a current limiting element 4 The conductive connection is connected to two nodes 2 of the nearest adjacent longitudinal section. In comparison with the exemplary embodiments of the illumination devices of Figures 1 and 2, the reliability and service life of the illumination device are increased over the excess. Since under such a condition, each of the radiation-emitting semiconductor devices 1 is assigned a lateral confinement 3 of one of the current limiting elements 4. Thus, when the radiation-emitting semiconductor device 1 of any of the light-emitting devices fails, current is conducted through the current limiting element 4. In such a case, the remaining light-emitting semiconductor device 1 is ideally protected without causing an excessive excessive current to be damaged by the remaining semiconductor device. Furthermore, in order to apply a fixed current '苐2 diagram to the longitudinal section LI, L2, L3 of the illumination device or one of the current limiting elements 5 or a current source 15 described in FIG. 1, it can be described with FIG. The longitudinal sections li, L2, and L3 of the light-emitting device are connected in series. Figure 4 is a diagram showing a fourth exemplary embodiment of a light-emitting device according to the present invention. In contrast to the exemplary embodiment described in FIG. 3, the current limiting element 4 of the transverse joint 3 is composed of two diodes connected in reverse to each other in parallel. Preferably, the diode 4b is adapted to use a forward current of at least 100 mA and a reverse voltage of at least 2 〇 v for such purposes. In the case of the exemplary embodiment described in the drawings 1 to 3, at least one or all of the current limiting elements 4 of the lateral connection 3 are connected by two diodes connected in reverse to each other in parallel. composition. 12, 200808121 FIG. 5 is a fifth exemplary embodiment of a light-emitting device according to the present invention. In this embodiment, the illuminating device comprises a connecting carrier. For example, the connection carrier 1 can be a circuit board, and the circuit board includes a substrate made of an electrically insulating material and a pattern track "ο-track" is formed on the substrate. In this exemplary embodiment, preferably, the light-emitting semiconductor device is composed of a light-emitting m-substance light-emitting diode directly embedded on the circuit board. For example, 'Wei Road (4)- Metal such as a board or a board. For example, 'the flow element 4, 5 is a good surface fitting, for example: a surface fitting resistor. As the wire says, the element of the hair strand can be placed on The illuminating device described in the figures to Fig. = Fig. 5 relates to the illuminating device of the fifth object, which can be specially manufactured (simultaneously with other devices) by means of simple and cost-effective operation. It is not limited to a specific number of longitudinal sections or radiation riding on a vertical plane (four). In addition, this issue may be based on the spirit of the above. And the combination of parallel connections to form the size of the 帛. The length of the system can be long-lasting, and the wire is separated from other devices, because even if there is a general light-emitting semiconductor device failure, the money can protect the remaining semi-conducting material from an excessive amount. The illuminating device described herein is particularly suitable for use in a headlight, such as on a car headlight. The invention is not limited to the description based on the illustrative embodiments, but includes any new features and Any combination of these features, even if such combinations of features and features are not expressly specified in the scope of the patent application or the exemplary embodiments, wherein the features are specifically included in any of the features in the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a first exemplary embodiment of a light-emitting device according to the present invention. FIG. 2 is a second exemplary embodiment of a light-emitting device according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 3 is a schematic circuit diagram showing a third exemplary embodiment of a light-emitting device according to the present invention. FIG. 4 is a view showing a light-emitting device according to the present invention. A schematic circuit diagram of a fourth exemplary embodiment. Fig. 5 is a schematic plan view showing a fifth exemplary embodiment of a light-emitting device according to the present invention. [Main element symbol description] 1. La semiconductor device 2 Node 3 lateral connection 4, 4a, 5 Current limiting element 4b Diode 6 Connection position 10 Connection carrier 15 Current source LI, L2, L3 Vertical J face 14