TWM353372U - Multi-lamp backlight apparatus and transformer thereof - Google Patents

Multi-lamp backlight apparatus and transformer thereof Download PDF

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Publication number
TWM353372U
TWM353372U TW97220036U TW97220036U TWM353372U TW M353372 U TWM353372 U TW M353372U TW 97220036 U TW97220036 U TW 97220036U TW 97220036 U TW97220036 U TW 97220036U TW M353372 U TWM353372 U TW M353372U
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Taiwan
Prior art keywords
tube
lamp
main coil
main
coil
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TW97220036U
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Chinese (zh)
Inventor
Ming-Yen Wu
Ming-Chang Ho
Ching-Chang Hsieh
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Darfon Electronics Corp
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Priority to TW97220036U priority Critical patent/TWM353372U/en
Publication of TWM353372U publication Critical patent/TWM353372U/en

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Abstract

A multi-lamp backlight apparatus is disclosed. The multi-lamp backlight apparatus comprises a first lamp, a second lamp, a third lamp, a fourth lamp, a power, and a transformer. The transformer comprises a first primary winding, a second primary winding, and a secondary winding. The first primary winding is coupled to the first lamp and the second lamp; the second primary winding is coupled to the third lamp and the fourth lamp. The secondary winding corresponds to the first primary winding and the second primary winding. The secondary winding forms a loop.

Description

M353372 八、新型說明: 【新型所屬之技術領域】 本創作係與題器有關,並且特別地, 燈管電流之麵器及應用該變壓器之多燈管背光裂f種用以平衡 【先前技術】 近年來’隨著液晶顯示面板之尺寸不斷 ^^f(Cold Cathode Flu〇reScent Lamp, CCFL)it^!!fΪ 泛地被運用於提贿晶顯示面板所需之高品質光源月先裝置更加廣 由於多,管㈣裝置之辭亮度與流經 關,因此,多燈管背光裴置所面臨 二之燈&電抓有 持大致相等’並確保提供給液晶顯示 ==夠具有非常穩定且均勻之亮度以避免各燈管亮度不 =路架,人多燈管背=之圖=先^ 光系統9.G含電源9G、四個燈管91〜94以及四個變壓器%〜 9日82二架構中’每一個變壓器各自對應一個燈管並 # — 廿目對應之燈管。舉例而言’圖一中的變壓器95 係對應於燈官91並且產生燈管電流至燈管%。 f、/ ΐ圖^示,乃11平衡電路架構之特色在於每一個變壓器之低 壓,,圈將會形成-串聯迴路。以變壓器95為例,當變墨器% 丨ΐϊΐ圈951從電源9〇接收到輸入電流後,其相對應之低 、則線圈&將會輸出一感應電流。由於每一個變壓器之低壓侧 線圈已形成串聯迴路’故流_串聯迴路之電流應為具有固定值 M353372 之電流 ίϊί 非常穩纽均把亮度。 夜_福板之、能夠具有 在實際應用中,雖然採用Jin平 … ίίϊίΐ;3:勻之亮度’然而,:於‘ΐϋ路ί :以:===:二_平”壓器才能實 當大的考驗。即使目^已有❹ 5麵減而§ ’的讀是相 衡編,燈4先=:==: 權祕應用該 【新型内容】 用於=;=燈:背光裝置及其變壓器。該歷器係應 定且均勻之亮度。該面板f光源能夠具有非常穩 同時對應於四根燈營有彳細之*構’亦即該變壓器係 線圈Π ϋ1干衡電路架構般,彼此祕形成-串聯迴t之 根據本創作之第—罝# 燈管背光I置包含係:種1管背光裝置。該多 燈管及變壓器。其中該電源“第:ii、m J: M353372 ^及^燈管。該麵器包含第—主、_ 圈耦接至第-燈管及第二燈管;該第二至:第;;J 管;該次線圈形成~迴路且流經該遊=; 有大致相等彻值,但兩者及弟1壓與第二,具 繞線數與H_之繞線數 $外’ H線圈之 與該第二主線圈之電感量大致相等,約為Γ5ΗΓ主線圈之電感量 根據本創作之苐—具體實施例係―種 燈管背光裝置包含電源、第-燈管Άΐ fi;;多 及第二變壓器。ΐ Γ弟八燈管、第一變屋器 燈管、第四燈管Γ第i燈i係^1妾=—I管、第二燈管、第三 且e第/、燈&、苐七燈管及第八燈管。 第-第―變壓器包含第—主線圈、第二主線圈及 圈及第二次線圈。其中三主線圈、第四主線 第四主線_接至第及第六燈管; 丰结園Β馇πο + 仏阳 弟燈S,第二次線圈對應於第二 線圈以形成-迴i圈。值得注意的是,第—次線圈織至第二次 線 至 電 於實際應財,第—主線圈之、魏 數、第三主線圈之繞線數及細域繞 咸蚤乃筮:《線圈之電感量、第三主線圈之 4里及第四主線圈之電感量亦大致相等, M353372 此外,該電源提供第一電壓給第一燈管、 但兩者之電性相反 管及第七燈管且提供第二電壓給第二燈管、第弟五燈 及第八燈管。其中第—電壓與第二電壓具有大“ ,根據本創作之第三具體實施例係一種變壓器。 壓器係應用於多燈管背光裝置中。該多燈管背 變 第:,、第二燈管、第三燈管及第四燈管。該5 jn 第三燈管及第四燈管。於此實施例中,該ί壓 燈營n M ,該第錢圈输至燈管及第二 燈g,該弟一主線圈耦接至第三燈管及第四燈管;該 一迴路且流經該迴路之感應電流具有固定值。 、、^ 於實際應用中’該電源提供第一電壓給第— 且提供第二電壓給第二燈管及第四燈管。第-電壓與第 有大致相等之電壓值,但兩者之電性相反。此外, 二 與第二主線圈之繞線數大致相等;該第-主線圈之ί:量 與5亥苐一主線圈之電感量大致相等,約為1.5Η。 " 夕鐵Ϊί於ΐ前技術,根據本創作之多燈置包含-推四 與於該變壓器可同時對應於四根燈管並平衡該四根燈 因此除了可以大幅減少多燈管背光裝置所需之變 壓器數置外,逛能夠有效減少電路板之使用面積,使 光裝置之生產成本能大幅降低,以提升其於市場上之競爭力^。 關於本創作之優點與精神可以藉由以下的創作詳述及所附圖 式付到進一步的瞭解。 【實施方式】 本創作提出一種多燈管背光裝置及其變壓器。該多燈管背光 M353372 有;構的變壓器’亦即該變壓器可同時對應 八双祁寻从啤饰捉仏、、、口液晶顯示面板之光源能夠呈有非赍 路板之使用碰,使得多燈管背細置^產低少電 所示,多燈管背光裝置1包含電源、之如圖t u、第三燈管13、第四燈管14及、、/ —1卜第二燈管 152 ίΐ« 151' 15 153 - ί W耦接至弟一燈管11及第二燈管 国 第三燈管13及第四燈管14。 12,弟-主線圈152耦接至 153 ,此實施例中,電源1G提供第—電壓 提供第二電壓給第二燈管12及第四燈管μ。4ίϊ 二電壓具有大致相等之電壓值,但兩者之電性相1兴 _V: ’若電源10提供之第一電壓為省’則第二電壓為牛- M353372 绩圈,J際巧中’為了能達到平衡各燈管電流之目的,第-φ 線數與第二主線圈152之繞線數大致相ΐ。此-i 多。父、又專統的Jin平衡電路架構中之變壓器的繞線數來= 大致:ί ί:主線圈151之電感量與第二主線圈152之電残量 大致相4,約為1·5Η左右。此—電或量 电,里 電路架構中之變壓器的電感量(〇抓^^高般傳摘如平衡 介紹接燈Hi1平衡各燈管電流之原理進行 管的燈管電^ 用位於同迴路中之各燈 盥第二主绐固’苐一個原係利用第一主線圈151之電感量 :欠線圖圈 之電感量大致相等;第三個原理則是利用流經 其達到平衡之鹏的錢電流具有蚊值,_衡秘管電流使 ,壓器15係用以使得多燈管背光裝置1中之各 sI穩二日& i目等二以確保提供給液晶顯示面板之光源能夠具有 於四C管由於多燈管背光裝置1包含可同時對應 夕鐵厭哭變壓器 故可以大幅減少多燈管背光裝置1所需 得多燈管量外,還_有效減少電路板之使用面積,使 、^月先裝置1之生產成本能大幅降低。 東昭=本ί作之第二具體實施例亦為-種多燈管背光裝置。請 二二-一二Ϊ二係繪示該多燈管背光裝置之架構的示意圖。如圖 Τ2包含電源2G、第-燈管2卜第二燈 蜜七、吟挥^7且二23、第四燈管24、第五燈管25、第六燈管26、 、且吕、第八燈管28、第一變壓器29及第二變壓器30。 爲^中楚電上20係-接至第-燈管2卜第二燈管22、第三燈 I第管%、第五燈管25、第六燈管26、第七燈管27 & 。值得>主意的是,相較於第一具體實施例之多燈管 M353372 背光裝置1,多燈管背光裂置2包含了兩健此麵接之變壓器。 於此實施例中,第-變壓器29包含第一 $圈292及第-次線圈293。其中第一主線圈四 葉二 ^及第二燈,;第二主線圈观耦接至第三燈管23 ί第C =24;第一*線圈293對應於第一主線圈別及第二ίίΞ 及第器二含第三主線圈3G1、第四主線圈302 二二、、唆 八中第三主線圈301耦接至第五燈管25及第 26 ;第四主線圈302轉接至第七燈管27 ^ ^ ίίίΐ^0!=於第三主線圈3〇1及第四主線圈搬。值得 ίί的疋,第一細293將會轉接至第二次線圈303以形成- ^ r 1之繞線數及第四主線圈302之繞線數 壓數二?線數較-般傳統的&平衡電路架構中之變 S ^11*' ^ , Λ, . , CTT , 久罘四主線圈302之電感量亦大致相 之變壓器的般傳統的㈤平衡電路架構中 23、= 卜科H2〇j字會,f第1壓給第一燈管2卜第三燈管 、且管及苐七燈管27且提供第二電壓认第-燈管22 ΐΓΐΙΓ^ί^Γ26 1ft 電源10提供之第Λ壓兩者之電_反。舉例而言’若 '第電i為8〇〇v,則第二電壓為_8〇〇v。 接下來’侃多燈官背絲置2平衡各燈管電流之原理進行 M353372 二,。,主要原理有三:第—個原理係利用位於同迴路中之各燈 二燈官電目等’第二個原理係利用第—主線圈29卜第二主 莖第二主線圈301及第四主線K 302之電感量均大致相 H二個原理則是利用流經第一次線圈293與第二次線圈303 到^衡之^路的感應電流具有固定值,以制衡各燈管電流使其達 管之ίΊΪ器裝置2包含可同時對應於四根燈 光裝置2所需之轡懕4^_壓器3〇 ’故可以大幅減少多燈管背 面積,使得多燈管外:严夠有效減少電路板之使用 5月先裝置2之生產成本能大幅降低。 之多燈管與第二具體實補可知’根據本創作 器,至於贼複數健有-推四架構之變壓 置所包含之燈^ iff”之變㈣的數量則視多燈管背光裝 根燈管,則多Μ心舉例“ ’若多燈管背雜置包含20 足s月光裝置只需5個變壓器即可。 用於多具5=為-j變壓:。該變壓器係應 用於多燈管背光巢If之圖―’圖二鱗示變壓器15應 152及】線中器第1 二包丄第-主線圈15卜第二主線圈 變壓器15之_ :、^ f :151與第二主線圈152位於 線㈣ 。,第三燈督心第二燈管背光裝 具有固定值。 路且_該迴路之感應電流 12 M353372 於此^施射’多燈管背光裝置丨之電源ω提 給第-燈官11及第二燈官13且提供第二電壓給第一产 第四燈管Μ。其賴與第二賴且 12及 但兩者之電性相反。 有大致相等之電壓值, ^實際顧巾,為了能達解衡各燈流之 ,第-主線圈m的繞線數與第二主線圈152之繞線數= 線數來得多。 悄玉路_中之變壓器的繞 152 ίϋ 之第—主線圈151的電感量與第二主線圈 轉二Ϊ 等’約為UH左右。此-電感量亦較-般傳 統的Jm平_路架構中之變壓器的電感量(〇 6h〜ih)來^般傳 電流Si進裝置1:之變壓器15平衡各燈管 同路中之各燈管的燈管、電^ ^有f第一個原理係利用位於 之第-主f二紅個原理係利用變壓器15 箅.笛^線圈 的電感讀苐二主線圈152之電感量大致相 ,第二個原理則是利用流經變壓器15 = 怎應電流具有固定值,以制衡各燈管電流使其達到平衡。。迎之 四之先,根據本創作之多燈管背光裝置包含有-推 流,用以使得多燈f f光裝置中之各燈管ΐ 定且岣勺J古二確:提供,液晶顯不面板之光源能夠具有非常穩 除了變壓器可同時對應於四根燈管,因此, 有敫減少官Ϊ絲置所需之變壓器數量外,還能夠 大鴨降低料紐id產成本能 創作具體實,例之詳述’鱗望能更加清楚描述本 本創作之範:二阳:丨並f 3述戶:揭露的較佳具體實施例來對 可加以限制。相反地’其目的是希望能涵蓋各種改變 13 M3,53372 及具相等性的安排於本創作所欲申請之專利範圍的範疇内。因 =,本創作所申請之專利範圍的範疇應該根據上述的說明作 只的解釋’以致使其涵蓋所有可㈣改變以及具相等性的安排。 M3,53372 Γ . ' 'M353372 VIII, new description: [New technical field] This creation is related to the detector, and in particular, the lamp current surface device and the multi-lamp backlight of the transformer are used to balance [Prior Art] In recent years, 'With the size of the liquid crystal display panel, ^C (Cold Cathode Flu〇reScent Lamp, CCFL)it^!!fΪ has been widely used in the high-quality light source required for the bribing crystal display panel. Because of the many, the brightness of the tube (four) device and the flow through, therefore, the multi-lamp backlight is facing the two lights & the electric grip is roughly equal 'and ensure that the liquid crystal display == is very stable and uniform The brightness to avoid the brightness of each tube is not = road frame, people with multiple lamps back = map = first ^ light system 9.G with power supply 9G, four lamps 91 ~ 94 and four transformers % ~ 9 days 82 two In the architecture, 'each transformer corresponds to one lamp and #-- corresponding to the lamp. For example, the transformer 95 in Figure 1 corresponds to the lamp officer 91 and produces a lamp current to the lamp tube %. f, / ΐ 图 ^, is the characteristic of the 11 balanced circuit architecture is the low voltage of each transformer, the ring will form a series circuit. Taking the transformer 95 as an example, when the ink changer % 丨ΐϊΐ coil 951 receives the input current from the power source 9 , and the corresponding input is low, the coil & will output an induced current. Since the low-voltage side coil of each transformer has formed a series circuit, the current of the current-series circuit should be a current with a fixed value of M353372. ίϊί The brightness is very stable. Night _ 福 板 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , A big test. Even if the target has been reduced by 5 faces and the reading of § ' is a balance, the lamp 4 first =:==: the secret application of the [new content] for =; = lamp: backlight device and Transformer. The calendar should have a uniform and uniform brightness. The panel f light source can be very stable and corresponds to the four light camps, which are the same structure, that is, the transformer system coil Π 干 1 dry balance circuit architecture, each other Secret formation - tandem back t according to the creation of the first - 罝 # lamp backlight I set contains: a type 1 tube backlight device. The multi-lamp and transformer. Among the power supply ": ii, m J: M353372 ^ and ^ Light tube. The facer includes a first main and a _ ring coupled to the first lamp and the second lamp; the second to: the first; the J tube; the secondary coil forms a loop and flows through the swim =; The value is the same, but the two are the same as the second and the second, the number of windings and the number of windings of H_$ outside the 'H coil and the inductance of the second main coil are about equal, about Γ5ΗΓ the inductance of the main coil According to the present invention, the lamp backlight device includes a power source, a first lamp, and a second transformer. Γ Γ 八 灯 灯 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Seven tubes and eighth tubes. The first-th transformer includes a first main coil, a second main coil and a second coil. The three main coils, the fourth main line, the fourth main line _ are connected to the sixth and sixth tubes; the Fengjieyuan Β馇πο + 仏阳 dian light S, and the second coil corresponds to the second coil to form a - back i-turn. It is worth noting that the first-order coil is woven to the second line to the actual power, the first-to-main coil, the Wei number, the number of windings of the third main coil, and the fine-field around the salty 筮: "coil The inductance, the inductance of the third main coil and the inductance of the fourth main coil are also substantially equal, M353372. In addition, the power supply provides the first voltage to the first lamp, but the opposite of the two and the seventh lamp And providing a second voltage to the second lamp, the fifth lamp and the eighth lamp. Wherein the first voltage and the second voltage have a large size, and the third embodiment according to the present invention is a transformer. The pressure device is applied to a multi-lamp backlight device. The multi-lamp back-changing:, second lamp a tube, a third tube and a fourth tube. The 5 xn third tube and the fourth tube. In this embodiment, the pressure lamp camp n M , the money ring is lost to the lamp tube and the second The lamp g is coupled to the third lamp and the fourth lamp; the induced current flowing through the circuit has a fixed value. In the actual application, the power supply provides the first voltage. And providing a second voltage to the second lamp and the fourth lamp. The first voltage is substantially equal to the first voltage, but the electrical properties of the two are opposite. In addition, the winding of the second and second main coils The number is approximately equal; the ί: amount of the first-main coil is approximately equal to the inductance of the 5 苐 primary coil, which is approximately 1.5 Η. " 夕铁Ϊ ΐ ΐ 技术 , , , , , , 根据 根据Pushing the transformer and the transformer can simultaneously correspond to the four lamps and balancing the four lamps, so that the multi-tube can be greatly reduced The number of transformers required for optical devices can be reduced, and the use of the circuit board can effectively reduce the use area of the circuit board, so that the production cost of the optical device can be greatly reduced to enhance its competitiveness in the market. ^ The advantages and spirit of the creation can be borrowed. The following is a detailed description of the creation details and the drawings. [Embodiment] The present invention proposes a multi-lamp backlight device and a transformer thereof. The multi-lamp backlight M353372 has a transformer of the structure, that is, the transformer At the same time, it can be used to match the eight pairs of 祁 从 从 啤 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 The backlight device 1 includes a power source, such as a tu, a third tube 13, a fourth tube 14, and/or a second tube 152 ίΐ « 151' 15 153 - ί W coupled to the lamp 11 and the second lamp tube third lamp tube 13 and the fourth lamp tube 14. 12, the brother-main coil 152 is coupled to 153, in this embodiment, the power source 1G provides the first voltage to provide the second voltage to the second lamp Tube 12 and fourth tube μ. 4ίϊ Two voltages have approximately equal power The value of the voltage, but the electrical phase of the two is _V: 'If the first voltage provided by the power supply 10 is province' then the second voltage is the cow - M353372 performance circle, J Qiaozhong 'in order to reach the balance of the lamps For the purpose of current, the number of -φ lines is roughly opposite to the number of windings of the second main winding 152. This is more than -. The number of windings of the transformer in the parent and special Jin balance circuit architecture = roughly: ί ί: the inductance of the main coil 151 is substantially equal to the electric residual amount of the second main coil 152, which is about 1. 5 。. This is the electric or electric quantity, and the inductance of the transformer in the circuit structure (〇 ^^^ Highly, such as the balance, the introduction of the lamp Hi1 balances the principle of the lamp currents. The lamp of the tube is used. The lamps are located in the same circuit. The second main tamping is used to make the first main coil 151. Inductance: The inductance of the under-line pattern circle is roughly equal; the third principle is to use the money current flowing through the balance to reach the balance, the mosquito value, the voltage of the tube is used to make the multi-lamp Each of the sI in the tube backlight device 1 is stable for two days to ensure that the light source provided to the liquid crystal display panel can be provided in the four C tube The multi-lamp backlight device 1 can simultaneously reduce the amount of lamps required for the multi-lamp backlight device 1 and can effectively reduce the use area of the multi-lamp backlight device 1 , and also effectively reduce the use area of the circuit board, so that The production cost of the device 1 can be greatly reduced. The second embodiment of Dong Zhao = Ben is also a multi-lamp backlight device. Please refer to the structure of the multi-lamp backlight device in the second two-two. As shown in FIG. 2, the power source 2G, the first lamp tube 2, the second lamp honey seven, the 吟 wave ^7 and the second 23, the fourth light tube 24, the fifth light tube 25, the sixth light tube 26, and the Lu, the first Eight lamps 28, a first transformer 29 and a second transformer 30. The system is connected to the second lamp tube 22, the third lamp I, the second tube, the fifth tube 25, the sixth tube 26, and the seventh tube 27 & . It is worthwhile to note that, compared to the multi-lamp M353372 backlight device 1 of the first embodiment, the multi-lamp backlight split 2 includes two transformers that are connected to the face. In this embodiment, the first transformer 29 includes a first loop 292 and a first coil 293. The first main coil is four-leaf and the second lamp; the second main coil is coupled to the third lamp 23 ί C=24; the first *coil 293 corresponds to the first main coil and the second ίίΞ The second device includes a third main coil 3G1, a fourth main coil 302, a second main coil 301 coupled to the fifth lamp tube 25 and the 26th; the fourth main coil 302 is switched to the seventh lamp. The tube 27 ^ ^ ίίίΐ^0!= is moved on the third main coil 3〇1 and the fourth main coil. It is worthwhile to note that the first thin 293 will be transferred to the second coil 303 to form the number of windings of - ^ r 1 and the number of windings of the fourth main coil 302. The number of lines is more than that of the conventional & balanced circuit architecture. S ^11*' ^ , Λ, . , CTT , the inductance of the long-term four main coil 302 is also roughly the same as that of the transformer (5) balanced circuit architecture. In the middle 23, = Bu Ke H2〇j word will, f the first pressure to the first tube 2 the third tube, and the tube and the seven tube 27 and provide the second voltage recognition - the tube 22 ΐΓΐΙΓ ^ί ^Γ26 1ft Power supply 10 provides the power of both the first _ reverse. For example, if 'electrical' is 8〇〇v, the second voltage is _8〇〇v. Next, the principle of balancing the currents of the lamps is set to 2, M353372 II. The main principle is three: the first principle is to use the lights in the same circuit, the two lights, the official electric power, etc. The second principle uses the first main coil 29, the second main stem, the second main coil 301 and the fourth main line. The inductance of K 302 is roughly phase H. The two principles are that the induced current flowing through the first coil 293 and the second coil 303 to the balance has a fixed value to balance the current of each lamp. The tube device 2 includes a 辔懕4^_pressure device 3〇 which can simultaneously correspond to the four light devices 2, so that the back area of the multi-lamp tube can be greatly reduced, so that the outside of the multi-lamp tube: the circuit is strictly reduced effectively The production cost of the board can be greatly reduced by using the device 2 in May. The number of lamps and the second concrete compensation can be known as 'according to this creator, as for the thief's plural number - push the four-structured transformer to include the lamp ^ iff" (four) the number depends on the multi-lamp backlight For the lamp, you can use the example of "more than 5 transformers for the 20-foot moonlight device." For multiple 5 = for -j transformer: The transformer is applied to the multi-lamp backlight nest If - "Figure 2 scale transformer 15 should be 152 and" line in the first two packs - the main coil 15 the second main coil transformer 15 _ :, ^ f: 151 is located on the line (four) with the second main coil 152. The third lamp supervisor has a fixed value for the second lamp backlight. And the induced current of the circuit is 12 M353372. The power supply ω of the multi-lamp backlight device is supplied to the first lamp director 11 and the second lamp officer 13 and the second voltage is supplied to the first lamp. Guan Wei. It depends on the second and 12 and the opposite of the electrical power. There are roughly equal voltage values, and in order to achieve the balance of the lamp flows, the number of windings of the first main coil m and the number of windings of the second main coil 152 = the number of lines. The winding of the transformer in the _ _ _ _ _ ϋ 152 — — — — — — — — 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主 主This inductance is also higher than the inductance of the transformer in the conventional Jm-Plane architecture (〇6h~ih). The current is transferred into the device 1: The transformer 15 balances the lamps in the same way. The first principle of the tube lamp and the electric motor The two principles are to use the flow through the transformer 15 = how the current should have a fixed value to balance the current of each lamp to achieve equilibrium. . In the first four, the multi-lamp backlight device according to the present invention includes a push-pull flow, which is used to make each of the lamps in the multi-lamp ff light device be set and the J-second is provided: the liquid crystal display panel is not provided. The light source can be very stable. In addition to the transformer, it can correspond to four lamps at the same time. Therefore, in addition to reducing the number of transformers required for the official silk, it is also possible to reduce the production cost of the big duck to create a concrete example. The detailed description of the scale can more clearly describe the scope of the creation of this book: Eryang: 丨 and f 3 述: The preferred embodiment of the disclosure can be limited. On the contrary, the purpose is to cover a variety of changes 13 M3, 53372 and equivalent arrangements within the scope of the patent application to be applied for in this creation. The scope of the patent scope applied for by this creation should be interpreted only in light of the above descriptions so that it covers all (four) changes and equal arrangements. M3,53372 Γ . ' '

【圖式簡單說明】 圖一係繪示先前技術中具有 系統之示意圖。 Jin平衡電路架構的多燈管背光 圖二係繪示根據本創作之第一具體實施例及第三具體實施例 之包含變壓器的多燈管背光裝置之架構的示意圖。 圖三係繪示根據本創作之第二具體實施例的多燈管背光裝置 之架構的不意圖。 【主要元件符號說明】 1、2:多燈管背光裝置 15、95〜98 :變壓器 10、20、90 :電源 11、21 :第一燈管 12、22 :第二燈管 13、23 :第三燈管 14、24 :第四燈管 25 :第五燈管 26 :第六燈管 27 :第七燈管 28 :第八燈管 29 :第一變壓器 30 :第二變壓器 951 :高壓侧線圈 952 :低壓側線圈 91〜94 ··燈管 9:多燈管背光系統 151、291 :第一主線圈 152、292 :第二主線圈 153 :次線圈 293 :第一次線圈 301 :第三主線圈 15 M353372 ι I · 302 :第四主線圈 303 :第二次線圈BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram showing a system in the prior art. Multi-lamp backlight of Jin balanced circuit architecture Fig. 2 is a schematic diagram showing the architecture of a multi-lamp backlight device including a transformer according to the first embodiment of the present invention and the third embodiment. Figure 3 is a schematic illustration of the architecture of a multi-lamp backlight device in accordance with a second embodiment of the present invention. [Description of main component symbols] 1, 2: Multi-lamp backlight device 15, 95 to 98: Transformers 10, 20, 90: Power supply 11, 21: First lamp 12, 22: Second lamp 13, 23: Three lamps 14, 24: fourth tube 25: fifth tube 26: sixth tube 27: seventh tube 28: eighth tube 29: first transformer 30: second transformer 951: high voltage side coil 952: low-voltage side coils 91 to 94 ··light tube 9: multi-lamp backlight system 151, 291: first main coil 152, 292: second main coil 153: secondary coil 293: first coil 301: third main Coil 15 M353372 ι I · 302: fourth main coil 303: second coil

1616

Claims (1)

M353372 ' 九、申請專利範圍: -1、 一種多燈管背光裝置,包含: 一第一燈管; 一第二燈管; 一第三燈管; 一第四燈管; 一變壓器,包含: 一第一主線圈,耦接至該第一燈管及該第二燈管; • 一第二主線圈,耦接至該第三燈管及該第四燈管;以及 麄 一次線圈,對應於該第一主線圈及該第二主線圈,該次線 圈形成一迴路;以及 一電源,耦接至該第一燈管、該第二燈管、該第三燈管及該 第四燈管。 2、 如申請專利範圍第1項所述之多燈管背光裝置,其中該第一主線 圈之繞線數與該第二主線圈之繞線數大致相等。 3、 如申請專利範圍第1項所述之多燈管背光裝置,其中該第一主線 圈之電感量與該第二主線圈之電感量大致相等。 4、 如申請專利範圍第〗項所述之多燈管背光裝置,其中該第一主線 圈之電感量與該第二主線圈之電感量均為1.5H。 鲁5、如申請專利範圍第1項所述之多燈管背光裝置,其中流經該迴路 之一感應電流具有一固定值。 一 6、如申請專利範圍第1項所述之多燈管背光裝置,其中該電源提供 一第一電壓給該第一燈管及該第三燈管且提供一第二電壓給該 第二燈管及該第四燈管。 7、 如申請專利範圍第6項所述之多燈管背光裝置,其中該第一電壓 與該第二電壓具有大致相等之電壓值,但兩者之電性相反。 8、 一種多燈管背光裝置,包含: 一第一燈管; 一第二燈管; 一第三燈管; 17 M353372 '第四燈管 第五燈管 第六燈管 '第七燈管 第八燈管 '第一變壓器 包含 一==主線圈,接至該第—燈管及該第二燈管; 一楚線圈’ $接至該第三燈管及該第四燈管;以及 黛-it線^,對應於該第—主線®及該第二主線圈; 一第一變壓器,包含: 苐一主線圈,耗接至該第五燈管及兮笛普. 圈,紐該第七燈管:以及 及第-:入線圈’對應於該第三主線圈及該第四主線圈 ^原耦接至該第—燈管、該第 八燈管;“第燈e、該苐六燈管、該第七燈管及該第 第二次線咖形成一迴路。 圈之繞線數^第項光裝置,其中該第一主線及該第四主線圈數、該第三主線圈之繞線數 如申睛專利範®第8項所述之多 圈之電感量、該第二主_ 』切置,其巾該第-主線 及該第四主線圈之電感量均大致 1目感里。、讀第三主線圈之電感量 $申請專利範®第8項所述之多 圈之電感量、該第二主 』先教置,其中該第一主線 第四主線圈之電感量均為JH讀第三主線圈之電感量 、申睛專利範圍第8項所述t 之一感應電流具有#置,其中流經該迴路 13、如申請專利範圍第 ,。 項所奴多燈管背奸置,其巾該電源提供 以 9、 10、 11、 12 18 M353372 芦· ' 一第一電壓給該第一燈管、該第三燈管、該第五燈管及該第七 * 燈管且提供一第二電壓給該第二燈管、該第四燈管、該第六燈 管及該第八燈管。 14、 如申請專利範圍第13項所述之多燈管背光裝置,其中該第一電 壓與該第二電壓具有大致相等之電壓值,但兩者之電性相反。 15、 一種變壓器,應用於一多燈管背光裝置中,該多燈管背光裝置 包含一電源、一第一燈管、一第二燈管、一第三燈管及一第四 燈管,該電源耦接至該第一燈管、該第二燈管、該第三燈管及 - 該第四燈管,該變壓器包含: 一第一主線圈,耦接至該第一燈管及該第二燈管; 着 一第二主線圈,耦接至該第三燈管及該第四燈管;以及 一次線圈,對應於該第一主線圈及該第二主線圈,該次線圈 形成一迴路。 16、 如申請專利範圍第15項所述之變壓器,其中該第一主線圈之繞 線數與該第二主線圈之繞線數大致相等。 17、 如申請專利範圍第15項所述之變壓器,其中該第一主線圈之電 感量與該第二主線圈之電感量大致相等。 18、 如申請專利範圍第15項所述之變壓器,其中該第一主線圈之電 感量與該第二主線圈之電感量均為1.5H。 • 19、如申請專利範圍第15項所述之變壓器,其中流經該迴路之一感 - 應電流具有一固定值。 ^ 20、如申請專利範圍第15項所述之變壓器,其中該電源提供一第一 電壓給該第一燈管及該第三燈管且提供一第二電壓給該第二燈 管及該第四燈管。 21、如申請專利範圍第20項所述之變壓器,其中該第一電壓與該第 二電壓具有大致相等之電壓值,但兩者之電性相反。 19M353372 ' IX. Patent application scope: -1. A multi-lamp backlight device comprising: a first lamp tube; a second lamp tube; a third lamp tube; a fourth lamp tube; a transformer comprising: a first main coil coupled to the first tube and the second tube; a second main coil coupled to the third tube and the fourth tube; and a primary coil corresponding to the The first main coil and the second main coil form a loop; and a power source is coupled to the first tube, the second tube, the third tube and the fourth tube. 2. The multi-lamp backlight device of claim 1, wherein the number of windings of the first main coil is substantially equal to the number of windings of the second main coil. 3. The multi-lamp backlight device of claim 1, wherein the inductance of the first main coil is substantially equal to the inductance of the second main coil. 4. The multi-lamp backlight device of claim 1, wherein the inductance of the first main coil and the inductance of the second main coil are both 1.5H. The multi-lamp backlight device of claim 1, wherein the induced current flowing through one of the loops has a fixed value. The multi-lamp backlight device of claim 1, wherein the power source supplies a first voltage to the first lamp and the third lamp and provides a second voltage to the second lamp. Tube and the fourth tube. 7. The multi-lamp backlight device of claim 6, wherein the first voltage and the second voltage have substantially equal voltage values, but the electrical properties of the two are opposite. 8. A multi-lamp backlight device comprising: a first lamp tube; a second lamp tube; a third lamp tube; 17 M353372 'fourth lamp tube fifth lamp tube sixth lamp tube seventh lamp tube number The eight-light tube 'the first transformer includes a == main coil, connected to the first tube and the second tube; a coil is connected to the third tube and the fourth tube; and 黛- The it line ^ corresponds to the first main line ® and the second main coil; a first transformer includes: a first main coil, which is connected to the fifth tube and the 兮 普. a tube: and a -: input coil corresponding to the third main coil and the fourth main coil are originally coupled to the first tube, the eighth tube; "the first lamp e, the six lamp tube The seventh lamp tube and the second wire coffee bean form a loop. The number of windings of the ring is the first optical device, wherein the first main wire and the fourth main coil number and the winding of the third main coil For example, the inductance of the multi-turn and the second main _ ′′, as described in the eighth item of the Vision Patent®, the inductance of the first main line and the fourth main coil are substantially one-dimensional. The reading of the inductance of the third main coil is the inductance of the multi-turn described in the eighth paragraph of the patent application, the second main teaching, wherein the inductance of the fourth main winding of the first main line is JH reads the inductance of the third main coil, and the one of the induced currents of item 8 of the scope of the patent application has a set, which flows through the circuit 13, as claimed in the scope of the patent. Set, the power supply is provided with 9, 10, 11, 12 18 M353372 re-' a first voltage to the first tube, the third tube, the fifth tube and the seventh * tube and Providing a second voltage to the second tube, the fourth tube, the sixth tube, and the eighth tube. 14. The multi-lamp backlight device of claim 13, wherein The first voltage and the second voltage have substantially equal voltage values, but the electrical properties of the two are opposite. 15. A transformer applied to a multi-lamp backlight device, the multi-lamp backlight device comprises a power source, a first a light tube, a second light tube, a third light tube and a fourth light tube, the power source is coupled The first lamp, the second tube, the third tube, and the fourth tube, the transformer includes: a first main coil coupled to the first tube and the second tube; a second main coil coupled to the third lamp and the fourth lamp; and a primary coil corresponding to the first main coil and the second main coil, the secondary coil forming a loop. The transformer of claim 15, wherein the number of windings of the first main coil is substantially equal to the number of windings of the second main coil. The inductance of the first main coil is substantially equal to the inductance of the second main coil. The transformer of claim 15, wherein the inductance of the first main coil and the inductance of the second main coil The amount is 1.5H. 19. The transformer of claim 15 wherein the sense of current flowing through the loop has a fixed value. The transformer of claim 15, wherein the power supply provides a first voltage to the first lamp and the third lamp and provides a second voltage to the second lamp and the first Four tubes. 21. The transformer of claim 20, wherein the first voltage and the second voltage have substantially equal voltage values, but the electrical properties of the two are opposite. 19
TW97220036U 2008-11-07 2008-11-07 Multi-lamp backlight apparatus and transformer thereof TWM353372U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391156A (en) * 2017-08-03 2019-02-26 台达电子工业股份有限公司 Power supply change-over device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391156A (en) * 2017-08-03 2019-02-26 台达电子工业股份有限公司 Power supply change-over device
US10283261B2 (en) 2017-08-03 2019-05-07 Delta Electronics, Inc. Power conversion device
TWI675534B (en) * 2017-08-03 2019-10-21 台達電子工業股份有限公司 Power converting device
CN109391156B (en) * 2017-08-03 2020-09-04 台达电子工业股份有限公司 Power supply conversion device

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