TWI409739B - Flat display and backlight module thereof - Google Patents
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本發明是有關於一種平面顯示器及其背光模組，且特別是有關於一種兼顧成本及顯示品質之平面顯示器及其背光模組。The present invention relates to a flat panel display and a backlight module thereof, and more particularly to a flat panel display and a backlight module thereof that combine cost and display quality.
於平面顯示器中，傳統的背光模組通常包括多個換流器以及多支燈管，並利用單一換流器驅動單一支燈管的架構來致能背光模組，但如此一來，數目過多的換流器將使得成本上升。故傳統又利用電容或電感，以單一換流器驅動多支燈管的架構來致能背光模組。若為利用電容，則考慮到能量損失的效益，須使用較小的電容，而使得背光模組之均流效果不佳。若為利用電感，電感的變動性會使得背光模組之均流效果不佳。故利用電容或電感雖然降低成本，但卻使得背光模組之均齊品質下降。後來又利用特殊的變壓器來達成換流器驅動燈管的架構，得到較佳之均流效果以提高影像顯示品質，但變壓器卻又使得成本居高不下。In a flat panel display, a conventional backlight module usually includes a plurality of inverters and a plurality of tubes, and a single inverter is used to drive the structure of a single tube to enable the backlight module, but in this case, the number is too large. The converter will increase the cost. Therefore, the conventional use of capacitors or inductors, the structure of multiple lamps is driven by a single inverter to enable the backlight module. If the capacitor is used, considering the benefit of energy loss, a smaller capacitor is required, and the current sharing effect of the backlight module is not good. If the inductor is used, the variability of the inductor will make the backlight module have a poor current sharing effect. Therefore, the use of capacitors or inductors reduces the cost, but the uniform quality of the backlight module is degraded. Later, a special transformer was used to achieve the structure of the converter-driven lamp, and a better current sharing effect was obtained to improve the image display quality, but the transformer made the cost high.
本發明係有關於一種平面顯示器及其背光模組，依據平面顯示器均齊品質的需求而配合不同的架構以致能背光模組，達成兼顧成本及顯示品質的目的。The invention relates to a flat panel display and a backlight module thereof, and according to the requirements of the uniform quality of the flat display, the different structures are combined to enable the backlight module to achieve the purpose of both cost and display quality.
根據本發明之第一方面，提出一種背光模組，包括第一背光區、第二背光區以及第三背光區。第一背光區位於背光模組之第一側，並包括一第一換流器及多支第一燈管。第一換流器以一電容架構或一電感架構驅動此些第一燈管。第二背光區位於背光模組之第二側，並包括一第二換流器及多支第二燈管。第二換流器以電容架構或電感架構驅動此些第二燈管，第二側不相鄰於該第一側。第三背光區位於第一背光區及第二背光區之間，並包括一第三換流器及多支第三燈管。第三換流器以一變壓器架構驅動此些第三燈管。According to a first aspect of the present invention, a backlight module is provided, including a first backlight region, a second backlight region, and a third backlight region. The first backlight area is located on the first side of the backlight module and includes a first inverter and a plurality of first tubes. The first converter drives the first lamps in a capacitive structure or an inductive structure. The second backlight area is located on the second side of the backlight module and includes a second inverter and a plurality of second tubes. The second inverter drives the second lamps in a capacitive or inductive structure, the second side being not adjacent to the first side. The third backlight region is located between the first backlight region and the second backlight region, and includes a third inverter and a plurality of third lamps. The third inverter drives the third lamps in a transformer configuration.
根據本發明之第二方面，提出一種平面顯示裝置，包括畫素陣列、資料驅動器、掃描驅動器以及背光模組。畫素陣列具有多個畫素。資料驅動器用以驅動畫素。掃描驅動器用以致能畫素。背光模組，相對應於畫素陣列，包括第一背光區、第二背光區以及第三背光區。第一背光區位於背光模組之第一側，並包括一第一換流器及多支第一燈管。第一換流器以一電容架構或一電感架構驅動此些第一燈管。第二背光區位於背光模組之第二側，並包括一第二換流器及多支第二燈管。第二換流器以電容架構或電感架構驅動此些第二燈管，第二側不相鄰於該第一側。第三背光區位於第一背光區及第二背光區之間，並包括一第三換流器及多支第三燈管。第三換流器以一變壓器架構驅動此些第三燈管。According to a second aspect of the present invention, a flat display device is provided, comprising a pixel array, a data driver, a scan driver, and a backlight module. A pixel array has multiple pixels. The data driver is used to drive the pixels. The scan driver is used to enable pixels. The backlight module corresponds to the pixel array, and includes a first backlight area, a second backlight area, and a third backlight area. The first backlight area is located on the first side of the backlight module and includes a first inverter and a plurality of first tubes. The first converter drives the first lamps in a capacitive structure or an inductive structure. The second backlight area is located on the second side of the backlight module and includes a second inverter and a plurality of second tubes. The second inverter drives the second lamps in a capacitive or inductive structure, the second side being not adjacent to the first side. The third backlight region is located between the first backlight region and the second backlight region, and includes a third inverter and a plurality of third lamps. The third inverter drives the third lamps in a transformer configuration.
根據本發明之第三方面，提出一種背光模組，包括第一背光區、第二背光區以及第三背光區。第一背光區位於背光模組之第一側，並包括一第一換流器及多支第一燈管。第一換流器以一電容架構或一電感架構驅動此些第一燈管。第二背光區位於背光模組之第二側，並包括一第二換流器及多支第二燈管。第二換流器以電容架構或電感架構驅動此些第二燈管，第二側不相鄰於該第一側。第三背光區位於第一背光區及第二背光區之間，並包括至少一第三換流器及至少一第三燈管。第三換流器驅動第三燈管。According to a third aspect of the present invention, a backlight module is provided, including a first backlight region, a second backlight region, and a third backlight region. The first backlight area is located on the first side of the backlight module and includes a first inverter and a plurality of first tubes. The first converter drives the first lamps in a capacitive structure or an inductive structure. The second backlight area is located on the second side of the backlight module and includes a second inverter and a plurality of second tubes. The second inverter drives the second lamps in a capacitive or inductive structure, the second side being not adjacent to the first side. The third backlight area is located between the first backlight area and the second backlight area, and includes at least one third inverter and at least one third tube. The third inverter drives the third lamp.
根據本發明之第四方面，提出一種平面顯示裝置，包括畫素陣列、資料驅動器、掃描驅動器以及背光模組。畫素陣列具有多個畫素。資料驅動器用以驅動畫素。掃描驅動器用以致能畫素。背光模組，相對應於畫素陣列，包括第一背光區、第二背光區以及第三背光區。第一背光區位於背光模組之第一側，並包括一第一換流器及多支第一燈管。第一換流器以一電容架構或一電感架構驅動此些第一燈管。第二背光區位於背光模組之第二側，並包括一第二換流器及多支第二燈管。第二換流器以電容架構或電感架構驅動此些第二燈管，第二側不相鄰於該第一側。第三背光區位於第一背光區及第二背光區之間，並包括至少一第三換流器及至少一第三燈管。第三換流器驅動第三燈管。According to a fourth aspect of the present invention, a flat display device is provided, comprising a pixel array, a data driver, a scan driver, and a backlight module. A pixel array has multiple pixels. The data driver is used to drive the pixels. The scan driver is used to enable pixels. The backlight module corresponds to the pixel array, and includes a first backlight area, a second backlight area, and a third backlight area. The first backlight area is located on the first side of the backlight module and includes a first inverter and a plurality of first tubes. The first converter drives the first lamps in a capacitive structure or an inductive structure. The second backlight area is located on the second side of the backlight module and includes a second inverter and a plurality of second tubes. The second inverter drives the second lamps in a capacitive or inductive structure, the second side being not adjacent to the first side. The third backlight area is located between the first backlight area and the second backlight area, and includes at least one third inverter and at least one third tube. The third inverter drives the third lamp.
為讓本發明之上述內容能更明顯易懂，下文特舉一較佳實施例，並配合所附圖式，作詳細說明如下：In order to make the above-mentioned contents of the present invention more comprehensible, a preferred embodiment will be described below, and in conjunction with the drawings, a detailed description is as follows:
本發明提供一種平面顯示器及其背光模組，依據平面顯示器均齊品質的需求而配合不同的架構以致能背光模組，達成兼顧成本及顯示品質的目的。The invention provides a flat panel display and a backlight module thereof, and according to the uniform quality requirements of the flat panel display, different structures are combined to enable the backlight module to achieve the purpose of both cost and display quality.
請參照第1圖，其繪示乃依照本發明較佳實施例之平面顯示裝置之示意圖。平面顯示裝置100包括畫素陣列110、資料驅動器120、掃描驅動器130以及背光模組140。畫素陣列110包括多個畫素(未繪示於圖)。資料驅動器120用以驅動畫素陣列110之畫素，掃描驅動器130用以致能畫素陣列110之畫素。背光模組140係對應於畫素陣列110。Please refer to FIG. 1 , which is a schematic diagram of a flat display device according to a preferred embodiment of the present invention. The flat display device 100 includes a pixel array 110, a data driver 120, a scan driver 130, and a backlight module 140. The pixel array 110 includes a plurality of pixels (not shown). The data driver 120 is used to drive the pixels of the pixel array 110, and the scan driver 130 is used to enable the pixels of the pixel array 110. The backlight module 140 corresponds to the pixel array 110.
請參照第2圖，其繪示乃依照本發明較佳實施例之背光模組之一例之示意圖。背光模組140包括第一背光區150、第二背光區160以及第三背光區170。第一背光區150位於背光模組140之第一側，並包括第一換流器152及多支第一燈管154。第一換流器152以一電容架構或一電感架構驅動此些第一燈管154。Please refer to FIG. 2, which is a schematic diagram showing an example of a backlight module according to a preferred embodiment of the present invention. The backlight module 140 includes a first backlight region 150, a second backlight region 160, and a third backlight region 170. The first backlight region 150 is located on the first side of the backlight module 140 and includes a first inverter 152 and a plurality of first lamps 154. The first inverter 152 drives the first lamps 154 in a capacitive structure or an inductive structure.
第二背光區160位於背光模組140之第二側，並包括第二換流器162及多支第二燈管164，其中背光模組140之第二側不相鄰於背光模組140之第一側。第二換流器162以電容架構或電感架構驅動此些第二燈管164。第三背光區170位於第一背光區150及第二背光區160之間，並包括第三換流器172及多支第三燈管174。第三換流器172以一變壓器架構驅動此些第三燈管174。The second backlight unit 160 is located on the second side of the backlight module 140 and includes a second inverter 162 and a plurality of second tubes 164. The second side of the backlight module 140 is not adjacent to the backlight module 140. The first side. The second inverter 162 drives the second lamps 164 in a capacitive or inductive configuration. The third backlight region 170 is located between the first backlight region 150 and the second backlight region 160 and includes a third inverter 172 and a plurality of third lamps 174. The third inverter 172 drives the third lamps 174 in a transformer configuration.
背光模組140實質上更包括電源轉換裝置180，用以接收一交流電源，並據以輸出一直流電壓至第一換流器152、第二換流器162以及第三換流器172，第一換流器152、第二換流器162及第三換流器172分別轉換直流電壓以驅動相對應之燈管。此外，於背光模組140中，第一燈管154、第二燈管164及第三燈管174實質上均為冷陰極螢光燈(Cold Cathode Fluorescent Lamp，CCFL)。The backlight module 140 further includes a power conversion device 180 for receiving an AC power supply, and accordingly outputting a DC voltage to the first inverter 152, the second inverter 162, and the third inverter 172, An inverter 152, a second inverter 162, and a third inverter 172 respectively convert a DC voltage to drive a corresponding lamp. In addition, in the backlight module 140, the first lamp tube 154, the second lamp tube 164, and the third lamp tube 174 are substantially Cold Cathode Fluorescent Lamps (CCFLs).
第一背光區150因位於背光模組140之第一側而非位於中央，其對於均齊品質之要求較低，故第一背光區150可以利用電容架構或電感架構來達成以單一換流器驅動多支燈管的目的，以降低部份成本。接下來係以第一換流器152以電容架構驅動多支第一燈管154為例做說明，然並不限於此，第一換流器152亦可以電感架構驅動多支第一燈管154。Since the first backlight region 150 is located on the first side of the backlight module 140 instead of being located at the center, the requirement for uniform quality is low, so the first backlight region 150 can be realized by a capacitor structure or an inductor structure to achieve a single converter. The purpose of driving multiple lamps is to reduce some of the cost. In the following, the first inverter 152 is used to drive the plurality of first lamps 154 as an example. However, the first converter 152 can also drive the plurality of first tubes 154 by the inductor structure. .
第一背光區150包括第一換流器152、多支第一燈管154、多個第一電容C1以及多個第二電容C2。第一換流器152轉換電源轉換裝置180所輸出之直流電壓以驅動多支第一燈管154。多個第一電容C1之第一端耦接至第一換流器152，多個第一電容C1之第二端分別耦接至多個第一燈管154之第一端。多個第二電容C2之第一端分別耦接至多個第一燈管154之第二端，多個第二電容C2之第二端耦接至第一換流器152。由於第一電容C1及第二電容C2可以等效為阻抗，故第一背光區150具有不錯的均流效果，且成本較低廉。The first backlight region 150 includes a first inverter 152, a plurality of first lamps 154, a plurality of first capacitors C1, and a plurality of second capacitors C2. The first inverter 152 converts the DC voltage output from the power conversion device 180 to drive the plurality of first lamps 154. The first ends of the plurality of first capacitors C1 are coupled to the first inverter 152, and the second ends of the plurality of first capacitors C1 are respectively coupled to the first ends of the plurality of first lamps 154. The first ends of the plurality of second capacitors C2 are respectively coupled to the second ends of the plurality of first lamps 154, and the second ends of the plurality of second capacitors C2 are coupled to the first inverter 152. Since the first capacitor C1 and the second capacitor C2 can be equivalent to the impedance, the first backlight region 150 has a good current sharing effect and is relatively inexpensive.
第二背光區160因為於背光模組140之另一側而非位於中央，其對於均齊品質之要求亦較低，故第二背光區160可以利用電容架構或電感架構來達成以單一換流器驅動多支燈管的目的，以降低部份成本。接下來係以第二換流器162以電感架構驅動多支第二燈管164為例做說明，然並不限於此，第二換流器162亦可以電容架構驅動多支第二燈管164。Because the second backlight region 160 is on the other side of the backlight module 140 instead of being located at the center, the requirement for uniform quality is also low, so the second backlight region 160 can be realized by a capacitor structure or an inductor structure to achieve a single commutation. The purpose of driving multiple lamps is to reduce some of the cost. In the following, the second inverter 162 is used to drive the plurality of second lamps 164 in an inductive manner as an example. However, the second converter 162 can also drive the plurality of second tubes 164 by the capacitor structure. .
第二背光區160包括第二換流器162、多支第二燈管164、多個第一電感L1以及多個第二電感L2。第二換流器162轉換電源轉換裝置180所輸出之直流電壓以驅動多支第二燈管164。多個第一電感L1之第一端耦接至第二換流器162，多個第一電感L1之第二端分別耦接至多個第二燈管164之第一端。多個第二電感L2之第一端分別耦接至多個第二燈管164之第二端，多個第二電感L2之第二端耦接至第二換流器162。由於第一電感L1及第二電感L2係對應至第二換流器162之漏感，故第二背光區160具有尚可的均流效果，且成本較低廉。The second backlight region 160 includes a second inverter 162, a plurality of second lamps 164, a plurality of first inductors L1, and a plurality of second inductors L2. The second inverter 162 converts the DC voltage output from the power conversion device 180 to drive the plurality of second lamps 164. The first ends of the plurality of first inductors L1 are coupled to the second inverter 162, and the second ends of the plurality of first inductors L1 are respectively coupled to the first ends of the plurality of second lamps 164. The first ends of the plurality of second inductors L2 are respectively coupled to the second ends of the plurality of second lamps 164, and the second ends of the plurality of second inductors L2 are coupled to the second inverter 162. Since the first inductor L1 and the second inductor L2 correspond to the leakage inductance of the second inverter 162, the second backlight region 160 has a uniform current sharing effect and is relatively inexpensive.
第三背光區170因為位於背光模組140之中央，故其對於均齊品質之要求最高，因此第三背光區170利用變壓器架構來達成以單一換流器驅動多支燈管的目的。第三背光區170包括第三換流器172、多支第三燈管174以及多個變壓器176。其中，每一個變壓器176係對應於一支第三燈管174。第三換流器172轉換電源轉換裝置180所輸出之直流電壓以驅動多支第三燈管174。Since the third backlight region 170 is located at the center of the backlight module 140, it has the highest requirement for uniform quality. Therefore, the third backlight region 170 utilizes a transformer architecture to achieve the purpose of driving a plurality of lamps with a single inverter. The third backlight region 170 includes a third inverter 172, a plurality of third lamps 174, and a plurality of transformers 176. Each of the transformers 176 corresponds to a third tube 174. The third inverter 172 converts the DC voltage output from the power conversion device 180 to drive the plurality of third lamps 174.
多個變壓器176之一次側分別耦接至多支第三燈管174之第一端及第三換流器172。多個變壓器176之二次側係為串聯配置並耦接至多支第三燈管174之第二端及第三換流器172。由於此些變壓器176之二次側係為串聯配置，故其二次側之電流大小一致，使得其一次側之電流大小亦相同。因此，流經多支第三燈管174之電流亦相同，亦即，第三背光區170具有最佳之均流效果及均齊品質。The primary side of the plurality of transformers 176 is coupled to the first end of the plurality of third lamps 174 and the third inverter 172, respectively. The secondary sides of the plurality of transformers 176 are arranged in series and coupled to the second ends of the plurality of third lamps 174 and the third inverter 172. Since the secondary sides of the transformers 176 are arranged in series, the currents on the secondary side are the same, so that the current on the primary side is also the same. Therefore, the current flowing through the plurality of third lamps 174 is also the same, that is, the third backlight region 170 has an optimum current sharing effect and uniform quality.
本發明上述實施例所揭露之平面顯示器及其背光模組，係依據平面顯示器對於均齊品質的需求，而於均齊品值要求較低之背光模組之兩側利用電容架構或電感架構以單一換流器驅動多支燈管，並於均齊品質要求較高之背光模組之中央利用變壓器架構以單一換流器驅動多支燈管。如此一來，一方面可以使得成本降低，另一方面亦兼顧了平面顯示器對於均齊品質的需求，提升了平面顯示器的顯示品質。The flat panel display and the backlight module thereof disclosed in the above embodiments of the present invention are based on the requirement of uniform quality of the flat panel display, and the capacitor architecture or the inductor structure is used on both sides of the backlight module with lower uniformity requirements. A single inverter drives a plurality of lamps, and a plurality of lamps are driven by a single converter using a transformer structure in the center of a backlight module having a high uniform quality. In this way, on the one hand, the cost can be reduced, on the other hand, the demand for uniform quality of the flat panel display is also taken into consideration, and the display quality of the flat panel display is improved.
此外，考慮到平面顯示器朝大尺寸發展的趨勢，因所需燈管較長，故背光模組可以採用雙邊驅動模式以得到較高的驅動能力。請參照第3圖，其繪示乃依照本發明較佳實施例之背光模組之另一例之示意圖。相較於第2圖中採用單邊驅動模式之多個背光區，第3圖中之背光模組140更分別利用第四換流器156、第五換流器166以及第六換流器178以達成雙邊驅動各個背光區中之多支燈管的目的。如此一來，不僅可以降低整體成本，亦可以克服大尺寸平面顯示器所需燈管長度較長的問題，達到平面顯示器對於均齊品質的要求。In addition, considering the trend of flat panel display toward large size, the backlight module can adopt a bilateral driving mode to obtain a higher driving capability because the required lamp is long. Please refer to FIG. 3, which is a schematic diagram showing another example of a backlight module according to a preferred embodiment of the present invention. The backlight module 140 in FIG. 3 further utilizes the fourth inverter 156, the fifth inverter 166, and the sixth inverter 178, respectively, compared to the plurality of backlight regions in the single-side driving mode in FIG. In order to achieve the purpose of bilaterally driving a plurality of lamps in each backlight zone. In this way, not only can the overall cost be reduced, but also the problem of long lamp length required for a large-sized flat panel display can be overcome, and the uniform quality of the flat panel display can be achieved.
另外，若對於大尺寸平面顯示器之中央位置的顯示品質與背光模組之中央位置的均齊度有較高的要求,亦可以於背光模組之中央位置以二個換流器雙邊驅動單一支燈管。請參照第4圖，其繪示乃依照本發明較佳實施例之背光模組之再一例之示意圖。於背光模組140之第三背光區170中，係以多個第三換流器172以及多個第六換流器178以雙邊分別驅動模式驅動多支第三燈管174。而第一背光區150及第二背光區160中，仍維持以二個換流器雙邊驅動多支燈管的架構。如此一來，平面顯示器不僅更達到了更佳的均齊品質，亦同時兼顧了整體成本的考量。In addition, if the display quality of the central position of the large-sized flat-panel display and the central position of the backlight module are relatively high, a single one can be driven bilaterally by two inverters at the central position of the backlight module. Light tube. Please refer to FIG. 4, which is a schematic diagram showing still another example of a backlight module according to a preferred embodiment of the present invention. In the third backlight region 170 of the backlight module 140, the plurality of third inverters 172 and the plurality of sixth inverters 178 drive the plurality of third lamps 174 in a bilaterally driven mode. In the first backlight region 150 and the second backlight region 160, the structure of driving the plurality of lamps bilaterally by the two inverters is maintained. In this way, the flat panel display not only achieves better uniform quality, but also takes into account the overall cost considerations.
綜上所述，雖然本發明已以一較佳實施例揭露如上，然其並非用以限定本發明。本發明所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾。因此，本發明之保護範圍當視後附之申請專利範圍所界定者為準。In view of the above, the present invention has been disclosed in a preferred embodiment, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.
100．．．平面顯示器100. . . Flat panel display
110．．．畫素陣列110. . . Pixel array
120．．．資料驅動器120. . . Data driver
130．．．掃描驅動器130. . . Scan drive
140．．．背光模組140. . . Backlight module
150．．．第一背光區150. . . First backlight
152．．．第一換流器152. . . First converter
154．．．第一燈管154. . . First lamp
156．．．第四換流器156. . . Fourth inverter
160．．．第二背光區160. . . Second backlight area
162．．．第二換流器162. . . Second inverter
164．．．第二燈管164. . . Second tube
166．．．第五換流器166. . . Fifth inverter
170‧‧‧第三背光區170‧‧‧ Third backlight area
172‧‧‧第三換流器172‧‧‧ Third Inverter
174‧‧‧第三燈管174‧‧‧3rd tube
176‧‧‧變壓器176‧‧‧Transformer
178‧‧‧第六換流器178‧‧‧ sixth inverter
180‧‧‧電流轉換裝置180‧‧‧current conversion device
第1圖繪示依照本發明較佳實施例之平面顯示裝置之示意圖。1 is a schematic view of a flat display device in accordance with a preferred embodiment of the present invention.
第2圖繪示依照本發明較佳實施例之背光模組之一例之示意圖。FIG. 2 is a schematic diagram showing an example of a backlight module according to a preferred embodiment of the present invention.
第3圖繪示依照本發明較佳實施例之背光模組之另一例之示意圖。FIG. 3 is a schematic view showing another example of a backlight module according to a preferred embodiment of the present invention.
第4圖繪示依照本發明較佳實施例之背光模組之再一例之示意圖。FIG. 4 is a schematic diagram showing still another example of a backlight module according to a preferred embodiment of the present invention.
140．．．背光模組140. . . Backlight module
150．．．第一背光區150. . . First backlight
152．．．第一換流器152. . . First converter
154．．．第一燈管154. . . First lamp
160．．．第二背光區160. . . Second backlight area
162．．．第二換流器162. . . Second inverter
164．．．第二燈管164. . . Second tube
170．．．第三背光區170. . . Third backlight area
172．．．第三換流器172. . . Third inverter
174．．．第三燈管174. . . Third tube
176．．．變壓器176. . . transformer
180．．．電流轉換裝置180. . . Current conversion device
Claims (40)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200520626A (en) * | 2003-10-06 | 2005-06-16 | Microsemi Corp | A current sharing scheme and device for multiple CCF lamp operation |
| TW200631468A (en) * | 2004-10-29 | 2006-09-01 | Tdk Corp | Discharge-lamp control device |
| TW200702828A (en) * | 2005-07-01 | 2007-01-16 | Hon Hai Prec Ind Co Ltd | Multi-lamp driving system |
| CN1920622A (en) * | 2005-08-26 | 2007-02-28 | 鸿富锦精密工业（深圳）有限公司 | Multiple lamp tube driving system and method |
| TW200746609A (en) * | 2006-04-13 | 2007-12-16 | Rohm Co Ltd | Inverter, and light-emitting device and image display device using the same |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200520626A (en) * | 2003-10-06 | 2005-06-16 | Microsemi Corp | A current sharing scheme and device for multiple CCF lamp operation |
| TW200631468A (en) * | 2004-10-29 | 2006-09-01 | Tdk Corp | Discharge-lamp control device |
| TW200702828A (en) * | 2005-07-01 | 2007-01-16 | Hon Hai Prec Ind Co Ltd | Multi-lamp driving system |
| CN1920622A (en) * | 2005-08-26 | 2007-02-28 | 鸿富锦精密工业（深圳）有限公司 | Multiple lamp tube driving system and method |
| TW200746609A (en) * | 2006-04-13 | 2007-12-16 | Rohm Co Ltd | Inverter, and light-emitting device and image display device using the same |
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