TW201338315A - Low-voltage differential signaling interface circuit - Google Patents
Low-voltage differential signaling interface circuit Download PDFInfo
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本發明是有關於一種低電壓差分信號（Low-Voltage Differential Signaling，LVDS）介面電路，且特別是有關於一種用於平面顯示器的主板及顯示面板之間資料傳輸的LVDS介面電路。The present invention relates to a Low-Voltage Differential Signaling (LVDS) interface circuit, and more particularly to an LVDS interface circuit for data transmission between a motherboard and a display panel of a flat panel display.
LVDS介面電路採用極低的電壓擺幅高速差動傳輸資料，具有低功耗、低誤碼率、低串擾及低輻射等特點，因此廣泛運用於對信號完整性、低抖動及共模特性要求較高的系統中，例如運用於平面顯示器的主板及顯示面板之間的資料傳輸。請參見圖1，其為現有的平面顯示器1的主板11及顯示面板12採用LVDS介面電路2傳輸資料的電路示意圖。LVDS介面電路2包含設於主板11上的輸出介面電路21及設於顯示面板12上的輸入介面電路22，其中，輸出介面電路21包含第一連接器111及差分信號發射器112，而輸入介面電路22包含第二連接器121及差分信號接收器122。LVDS interface circuit uses ultra-low voltage swing high-speed differential transmission data, low power consumption, low bit error rate, low crosstalk and low radiation, so it is widely used for signal integrity, low jitter and common mode requirements. In higher systems, such as data transfer between the motherboard and the display panel used in flat panel displays. Please refer to FIG. 1 , which is a circuit diagram of the motherboard 11 and the display panel 12 of the conventional flat panel display 1 using LVDS interface circuit 2 for transmitting data. The LVDS interface circuit 2 includes an output interface circuit 21 disposed on the main board 11, and an input interface circuit 22 disposed on the display panel 12. The output interface circuit 21 includes a first connector 111 and a differential signal transmitter 112, and the input interface The circuit 22 includes a second connector 121 and a differential signal receiver 122.
在主板11上，微控器與縮放器113接收類比或數位視訊輸入，並經過如類比至數位轉換、視訊解碼或影像縮放等處理後產生RGB影像資料以輸出至差分信號發射器112。差分信號發射器112將RGB影像資料與一些控制信號轉換成差分信號以輸出至第一連接器111，使得主板11從第一連接器111輸出差分信號。在顯示面板12上，從第二連接器121接收差分信號並輸出至差分信號接收器122。差分信號接收器122將差分信號反轉換而重製出RGB影像資料與控制信號以輸出至時序控制與行列驅動器123。時序控制與行列驅動器123根據重製的RGB影像資料與控制信號驅動像素陣列124顯示影像畫面。
On the main board 11, the micro controller and the scaler 113 receive the analog or digital video input, and generate RGB image data for output to the differential signal transmitter 112 after processing such as analog to digital conversion, video decoding or image scaling. The differential signal transmitter 112 converts the RGB image data and some control signals into differential signals for output to the first connector 111 such that the main board 11 outputs a differential signal from the first connector 111. On the display panel 12, a differential signal is received from the second connector 121 and output to the differential signal receiver 122. The differential signal receiver 122 inversely converts the differential signals to reproduce the RGB image data and control signals for output to the timing control and row and column driver 123. The timing control and row and column driver 123 drives the pixel array 124 to display an image frame based on the reproduced RGB image data and control signals.
現有的平面顯示器1的主板11及顯示面板12採用的LVDS介面電路2的連接器（即主板11上用於輸出差分信號的第一連接器111及顯示面板12上用於接收差分信號的第二連接器121）有兩種類型，一種是FFC/FPC連接器，另一種是條形（wafer）連接器，其中，FFC是Flexible Flat Cable（軟性排線）的簡稱，FPC是Flexible Printed Circuit（軟性印刷電路板）的簡稱。
The motherboard 11 of the existing flat panel display 1 and the connector of the LVDS interface circuit 2 used by the display panel 12 (ie, the first connector 111 for outputting differential signals on the main board 11 and the second for receiving differential signals on the display panel 12) There are two types of connectors 121), one is an FFC/FPC connector, and the other is a wafer connector. The FFC is an abbreviation of Flexible Flat Cable, and the FPC is a Flexible Printed Circuit. Abbreviation for printed circuit board).
非顯示面板生產公司在開發初世代或前幾世代的平面顯示器時，其主板及顯示面板採用的LVDS介面電路的連接器通常是同一類型，故能直接通過現有的連接線電連接以進行資料傳輸。例如，請參見圖2，主板11上的第一連接器111及顯示面板12上的第二連接器121均是FFC連接器，故主板11及顯示面板12能直接通過現有的FFC連接線23電連接。其中，FFC連接線23包含本體231及設於本體231兩端的連接器232和233，本體231即是FFC，且連接器232和233均是FFC連接器而能分別與第一連接器111及第二連接器121連接。
When the non-display panel production company develops the flat panel display of the first generation or the previous generations, the connectors of the LVDS interface circuit used in the main board and the display panel are usually the same type, so that the data can be directly connected through the existing connection line for data transmission. . For example, referring to FIG. 2, the first connector 111 on the main board 11 and the second connector 121 on the display panel 12 are all FFC connectors, so that the main board 11 and the display panel 12 can directly pass through the existing FFC connecting line 23. connection. The FFC connecting line 23 includes a body 231 and connectors 232 and 233 disposed at two ends of the body 231. The body 231 is an FFC, and the connectors 232 and 233 are both FFC connectors and can be respectively connected to the first connector 111 and the first connector. The two connectors 121 are connected.
然而，隨著平面顯示器經過多世代開發或在顯示面板緊缺的情況下，其主板及顯示面板採用的LVDS介面電路的連接器常常不是同一類型，故需要重新設計主板的佈線以便改用同一類型的連接器，或開發轉接板以提供主板及顯示面板之間的轉接，因而會增加設計及製造成本且延長開發週期。例如，請參見圖3，主板11上的第一連接器111及顯示面板12上的第二連接器121’分別是FFC連接器及條形連接器，故主板11及顯示面板12需要轉接板24進行轉接。轉接板24上設有彼此電連接的連接器241和242，且連接器241和242分別是FFC連接器及條形連接器。主板11上的第一連接器111通過FFC連接線23與轉接板24上的連接器241連接，且顯示面板12上的第二連接器121’通過雙絞連接線25與轉接板24上的連接器242連接，故主板11及顯示面板12通過轉接板24轉接而電連接。其中，FFC連接線23包含本體231及設於本體231兩端的連接器232和233，本體231即是FFC，且連接器232和233均是FFC連接器而能分別與第一連接器111及連接器241連接。雙絞連接線25包含本體251及設於本體251兩端的連接器252和253，本體251即是雙絞線，且連接器252和253均是條形連接器而能分別與連接器242及第二連接器121’連接。
However, as the flat panel display has been developed for many generations or the display panel is in short supply, the connectors of the LVDS interface circuit used in the main board and the display panel are often not the same type, so the wiring of the main board needs to be redesigned to use the same type. Connectors, or the development of adapter boards to provide switching between the motherboard and the display panel, thereby increasing design and manufacturing costs and extending the development cycle. For example, referring to FIG. 3, the first connector 111 on the main board 11 and the second connector 121' on the display panel 12 are respectively FFC connectors and strip connectors, so the main board 11 and the display panel 12 need an adapter board. 24 transfer. The adapter plate 24 is provided with connectors 241 and 242 which are electrically connected to each other, and the connectors 241 and 242 are an FFC connector and a bar connector, respectively. The first connector 111 on the main board 11 is connected to the connector 241 on the interposer 24 via the FFC connecting line 23, and the second connector 121' on the display panel 12 passes through the twisted pair cable 25 and the interposer board 24. The connector 242 is connected, so that the main board 11 and the display panel 12 are electrically connected by being transferred through the adapter board 24. The FFC connecting line 23 includes a body 231 and connectors 232 and 233 disposed at two ends of the body 231. The body 231 is an FFC, and the connectors 232 and 233 are both FFC connectors and can be respectively connected to the first connector 111. The device 241 is connected. The twisted pair cable 25 includes a body 251 and connectors 252 and 253 disposed at opposite ends of the body 251. The body 251 is a twisted pair, and the connectors 252 and 253 are strip connectors and can be respectively connected to the connector 242 and the first The two connectors 121' are connected.
本發明的目的在提出一種LVDS介面電路，可在平面顯示器的主板及顯示面板採用的LVDS介面電路的連接器是不同類型時，仍可直接電連接主板及顯示面板，不需重新設計主板的佈線或開發轉接板進行轉接。The object of the present invention is to provide an LVDS interface circuit, which can directly connect the main board and the display panel directly when the connector of the LVDS interface circuit used in the main board of the flat display and the display panel is different, and the wiring of the main board is not required to be redesigned. Or develop an adapter plate for transfer.
為達到上述目的，本發明提出一種LVDS介面電路，用於平面顯示器的主板及顯示面板之間的資料傳輸。LVDS介面電路包含設於主板上的輸出介面電路、設於顯示面板上的輸入介面電路以及用於電連接輸出介面電路與輸入介面電路的複合式連接線。輸出介面電路包含第一連接器及差分信號發射器，其中，差分信號發射器接收主板上的第一信號並將第一信號轉換成差分信號以輸出至第一連接器。輸入介面電路包含第二連接器及差分信號接收器，其中，差分信號接收器通過第二連接器接收差分信號並將差分信號轉換成顯示面板上的第二信號。複合式連接線包含雙絞線及設於雙絞線兩端的第三連接器及第四連接器，其中，第一連接器及第三連接器為一公一母的第一型連接器，第二連接器及第四連接器為一公一母的第二型連接器，且第一型連接器及第二型連接器為不同類型的連接器。
To achieve the above object, the present invention provides an LVDS interface circuit for data transmission between a motherboard and a display panel of a flat panel display. The LVDS interface circuit includes an output interface circuit disposed on the main board, an input interface circuit disposed on the display panel, and a composite connection line for electrically connecting the output interface circuit and the input interface circuit. The output interface circuit includes a first connector and a differential signal transmitter, wherein the differential signal transmitter receives the first signal on the main board and converts the first signal into a differential signal for output to the first connector. The input interface circuit includes a second connector and a differential signal receiver, wherein the differential signal receiver receives the differential signal through the second connector and converts the differential signal into a second signal on the display panel. The composite cable includes a twisted pair and a third connector and a fourth connector disposed at two ends of the twisted pair, wherein the first connector and the third connector are a male and a female first connector, The two connectors and the fourth connector are a male and female second type connectors, and the first type connector and the second type connector are different types of connectors.
在本發明之一實施例中，第一型連接器為FFC連接器或FPC連接器，第二型連接器為條形連接器。
In an embodiment of the invention, the first type of connector is an FFC connector or an FPC connector, and the second type of connector is a strip connector.
在本發明之一實施例中，第一型連接器為條形連接器，第二型連接器為FFC連接器或FPC連接器。
In one embodiment of the invention, the first type of connector is a strip connector and the second type of connector is an FFC connector or an FPC connector.
在本發明之一實施例中，第一連接器為公的第一型連接器，第三連接器為母的第一型連接器。
In an embodiment of the invention, the first connector is a male first type connector and the third connector is a female first type connector.
在本發明之一實施例中，第一連接器為母的第一型連接器，第三連接器為公的第一型連接器。
In an embodiment of the invention, the first connector is a female first type connector and the third connector is a male first type connector.
在本發明之一實施例中，第二連接器為公的第二型連接器，第四連接器為母的第二型連接器。
In an embodiment of the invention, the second connector is a male second type connector and the fourth connector is a female second type connector.
在本發明之一實施例中，第二連接器為母的第二型連接器，第四連接器為公的第二型連接器。
In an embodiment of the invention, the second connector is a female second type connector and the fourth connector is a male second type connector.
在本發明之一實施例中，平面顯示器為液晶顯示器、電漿顯示器或有機發光二極體顯示器。
In an embodiment of the invention, the flat panel display is a liquid crystal display, a plasma display or an organic light emitting diode display.
本發明因採用複合式連接線，其包含雙絞線及設於雙絞線兩端不同類型的連接器，使得主板及顯示面板上採用的LVDS介面電路的連接器是不同類型時可通過複合式連接線直接電連接主板及顯示面板，不需重新設計主板的佈線或開發轉接板進行轉接，解決顯示面板選用的局限性，從而降低設計及製造成本且縮短開發週期。
The invention adopts a composite connecting cable, which comprises a twisted pair cable and different types of connectors disposed at two ends of the twisted pair cable, so that the connector of the LVDS interface circuit used on the main board and the display panel can be combined by different types. The cable is directly connected to the main board and the display panel. It is not necessary to redesign the wiring of the main board or develop the adapter board for switching, which solves the limitations of the display panel, thereby reducing the design and manufacturing cost and shortening the development cycle.
為讓本發明之上述和其他目的、特徵和優點能更明顯易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。
The above and other objects, features and advantages of the present invention will become more <RTIgt;
請參見圖4，其為根據本發明一實施例的用於平面顯示器3的主板31及顯示面板32之間資料傳輸的LVDS介面電路4的立體示意圖。平面顯示器3可為液晶顯示器、電漿顯示器或有機發光二極體顯示器，其包含主板31及顯示面板32。其中，主板31包含第一連接器311、差分信號發射器312及微控器與縮放器313，而顯示面板32包含第二連接器321、差分信號接收器322、時序控制與行列驅動器323及像素陣列324。Please refer to FIG. 4 , which is a perspective view of an LVDS interface circuit 4 for data transmission between the main board 31 and the display panel 32 of the flat panel display 3 according to an embodiment of the invention. The flat panel display 3 can be a liquid crystal display, a plasma display or an organic light emitting diode display, which includes a main board 31 and a display panel 32. The main board 31 includes a first connector 311, a differential signal transmitter 312, and a micro controller and a scaler 313. The display panel 32 includes a second connector 321, a differential signal receiver 322, a timing control and row and column driver 323, and a pixel. Array 324.
LVDS介面電路4用於平面顯示器3的主板31及顯示面板32之間的資料傳輸。LVDS介面電路4包含設於主板31上的輸出介面電路41、設於顯示面板32上的輸入介面電路42以及用於電連接輸出介面電路41與輸入介面電路42的複合式連接線43。其中，輸出介面電路41由第一連接器311及差分信號發射器312所組成，輸入介面電路42由第二連接器321及差分信號接收器322所組成，而複合式連接線43包含雙絞線431及設於雙絞線431兩端的第三連接器432及第四連接器433。The LVDS interface circuit 4 is used for data transfer between the main board 31 of the flat panel display 3 and the display panel 32. The LVDS interface circuit 4 includes an output interface circuit 41 disposed on the main board 31, an input interface circuit 42 disposed on the display panel 32, and a composite connection line 43 for electrically connecting the output interface circuit 41 and the input interface circuit 42. The output interface circuit 41 is composed of a first connector 311 and a differential signal transmitter 312. The input interface circuit 42 is composed of a second connector 321 and a differential signal receiver 322, and the composite connection line 43 includes a twisted pair. 431 and a third connector 432 and a fourth connector 433 disposed at two ends of the twisted pair 431.
在主板31上，微控器與縮放器313接收類比或數位視訊輸入，並經過如類比至數位轉換、視訊解碼或影像縮放等處理後產生RGB影像資料以輸出至差分信號發射器312。差分信號發射器312將RGB影像資料與一些控制信號（合稱為第一信號）轉換成差分信號以輸出至第一連接器311，使得主板31從第一連接器311輸出差分信號。在顯示面板32上，從第二連接器321接收差分信號並輸出至差分信號接收器322。差分信號接收器322將差分信號反轉換而重製出RGB影像資料與控制信號（合稱為第二信號）以輸出至時序控制與行列驅動器323。時序控制與行列驅動器323根據重製的RGB影像資料與控制信號驅動像素陣列324顯示影像畫面。On the main board 31, the micro controller and the scaler 313 receive an analog or digital video input, and generate RGB image data for output to the differential signal transmitter 312 after processing such as analog to digital conversion, video decoding or image scaling. The differential signal transmitter 312 converts the RGB image data and some control signals (collectively referred to as first signals) into differential signals for output to the first connector 311, so that the main board 31 outputs a differential signal from the first connector 311. On the display panel 32, a differential signal is received from the second connector 321 and output to the differential signal receiver 322. The differential signal receiver 322 inversely converts the differential signal to reproduce the RGB image data and the control signal (collectively referred to as the second signal) for output to the timing control and row and column driver 323. The timing control and row and column driver 323 drives the pixel array 324 to display an image frame based on the reproduced RGB image data and control signals.
主板31上的第一連接器311及複合式連接線43的第三連接器432為可彼此連接的一公一母的第一型連接器，而顯示面板32上的第二連接器321及複合式連接線43的第四連接器433為可彼此連接的一公一母的第二型連接器，且第一型連接器及第二型連接器為不同類型的連接器。因此，通過將複合式連接線43的第三連接器432與主板31上的第一連接器311連接，並將複合式連接線43的第四連接器433與顯示面板32上的第二連接器321連接，可使主板31上的輸出介面電路41及顯示面板32上的輸入介面電路42電連接，進而提供主板31及顯示面板32之間的資料傳輸，故主板31及顯示面板32能直接通過複合式連接線43電連接。The first connector 311 on the main board 31 and the third connector 432 of the composite connecting line 43 are a male-type first type connector connectable to each other, and the second connector 321 and the composite on the display panel 32. The fourth connector 433 of the type connection cable 43 is a male and female second type connector connectable to each other, and the first type connector and the second type connector are different types of connectors. Therefore, by connecting the third connector 432 of the composite connection line 43 with the first connector 311 on the main board 31, and the fourth connector 433 of the composite connection line 43 and the second connector on the display panel 32 The 321 connection can electrically connect the output interface circuit 41 on the main board 31 and the input interface circuit 42 on the display panel 32, thereby providing data transmission between the main board 31 and the display panel 32, so that the main board 31 and the display panel 32 can pass directly. The composite connecting wires 43 are electrically connected.
在本實施例中，第一連接器311及第三連接器432均為第一型連接器，即FFC連接器或FPC連接器，其中，第一連接器311為固設於主板31上的插座連接器（jack connector）且為採用插孔接觸件（socket contacts）的母連接器（female connector），而第三連接器432為設於複合式連接線43的雙絞線431一端的插頭連接器（plug connector）且為採用插針接觸件（pin contacts）的公連接器（male connector）。第二連接器321及第四連接器433均為第二型連接器，即條形連接器，其中，第二連接器321為固設於顯示面板32上的插座連接器且為採用插針接觸件的公連接器，而第四連接器433為設於複合式連接線43的雙絞線431另一端的插頭連接器且為採用插孔接觸件的母連接器。但是，本實施例並非限制本發明，例如，第一連接器可改用公連接器且第三連接器改用母連接器，或者第二連接器改用母連接器且第四連接器改用公連接器。In this embodiment, the first connector 311 and the third connector 432 are first type connectors, that is, FFC connectors or FPC connectors, wherein the first connector 311 is a socket fixed on the main board 31. A jack connector is a female connector using socket contacts, and a third connector 432 is a plug connector provided at one end of the twisted pair 431 of the composite connecting line 43. (plug connector) and is a male connector using pin contacts. The second connector 321 and the fourth connector 433 are both a second type connector, that is, a strip connector, wherein the second connector 321 is a socket connector fixed on the display panel 32 and is in contact with the pin. The male connector of the piece, and the fourth connector 433 is a plug connector provided at the other end of the twisted pair 431 of the composite connecting wire 43 and is a female connector using the jack contact. However, this embodiment does not limit the present invention. For example, the first connector may be replaced with a male connector and the third connector may be replaced with a female connector, or the second connector may be replaced with a female connector and the fourth connector may be used instead. Male connector.
在另一實施例中，請參見圖5，第一連接器311’及第三連接器432’均為第一型連接器，即條形連接器，其中，第一連接器311’為固設於主板31上的插座連接器且為採用插針接觸件的公連接器，而第三連接器432’為設於複合式連接線43的雙絞線431一端的插頭連接器且為採用插孔接觸件的母連接器。第二連接器321’及第四連接器433’均為第二型連接器，即FFC連接器或FPC連接器，其中，第二連接器321’為固設於顯示面板32上的插座連接器且為採用插孔接觸件的母連接器，而第四連接器433’為設於複合式連接線43的雙絞線431另一端的插頭連接器且為採用插針接觸件的公連接器。但是，本實施例並非限制本發明，例如，第一連接器可改用母連接器且第三連接器改用公連接器，或者第二連接器改用公連接器且第四連接器改用母連接器。In another embodiment, referring to FIG. 5, the first connector 311' and the third connector 432' are both first type connectors, that is, strip connectors, wherein the first connector 311' is fixed. The socket connector on the main board 31 is a male connector using a pin contact member, and the third connector 432' is a plug connector provided at one end of the twisted pair 431 of the composite connecting line 43 and is a jack Female connector for the contact. The second connector 321 ′ and the fourth connector 433 ′ are both a second type connector, that is, an FFC connector or an FPC connector, wherein the second connector 321 ′ is a socket connector fixed on the display panel 32 . And it is a female connector using a jack contact, and the fourth connector 433' is a plug connector provided at the other end of the twisted pair 431 of the composite connecting line 43 and is a male connector using a pin contact. However, this embodiment does not limit the present invention. For example, the first connector may be replaced with a female connector and the third connector may be replaced with a male connector, or the second connector may be replaced with a male connector and the fourth connector may be used instead. Female connector.
綜上所述，本發明因採用複合式連接線，其包含雙絞線及設於雙絞線兩端不同類型的連接器，使得主板及顯示面板上採用的LVDS介面電路的連接器是不同類型時可通過複合式連接線直接電連接主板及顯示面板，不需重新設計主板的佈線或開發轉接板進行轉接，解決顯示面板選用的局限性，從而降低設計及製造成本且縮短開發週期。In summary, the present invention adopts a composite connecting cable, which comprises a twisted pair cable and different types of connectors disposed at two ends of the twisted pair cable, so that the connectors of the LVDS interface circuit used on the main board and the display panel are different types. The motherboard and the display panel can be directly connected through the composite cable, and the layout of the display panel can be reduced without redesigning the wiring of the motherboard or developing the adapter board to reduce the design and manufacturing cost and shorten the development cycle.
雖然本發明已以較佳實施例揭露如上，然其並非用於限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，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。While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.
1、3．．．平面顯示器1, 3. . . Flat panel display
11、31．．．主板11, 31. . . Motherboard
111、311、311’．．．第一連接器111, 311, 311'. . . First connector
112、312．．．差分信號發射器112, 312. . . Differential signal transmitter
113、313．．．微控器與縮放器113, 313. . . Micro controller and scaler
12、32．．．顯示面板12, 32. . . Display panel
121、121’、321、321’．．．第二連接器121, 121', 321, 321'. . . Second connector
122、322．．．差分信號接收器122, 322. . . Differential signal receiver
123、323．．．時序控制與行列驅動器123, 323. . . Timing control and row and column drivers
124、324．．．像素陣列124, 324. . . Pixel array
2、4．．．LVDS介面電路2, 4. . . LVDS interface circuit
21、41．．．輸出介面電路21, 41. . . Output interface circuit
22、42．．．輸入介面電路22, 42. . . Input interface circuit
23、25．．．連接線23, 25. . . Cable
231、251．．．本體231, 251. . . Ontology
232、233、252、253．．．連接器232, 233, 252, 253. . . Connector
24．．．轉接板twenty four. . . Adapter plate
241、242．．．連接器241, 242. . . Connector
43．．．複合式連接線43. . . Composite cable
431．．．雙絞線431. . . Twisted pair
432、432’．．．第三連接器432, 432’. . . Third connector
433、433’．．．第四連接器433, 433’. . . Fourth connector
圖1為現有的平面顯示器的主板及顯示面板採用LVDS介面電路傳輸資料的電路示意圖。FIG. 1 is a circuit diagram of a motherboard and a display panel of a conventional flat panel display using LVDS interface circuits for transmitting data.
圖2為圖1所示的主板及顯示面板採用的LVDS介面電路的連接器是同一類型時的立體示意圖。2 is a perspective view showing the connector of the LVDS interface circuit used in the main board and the display panel of FIG. 1 in the same type.
圖3為圖1所示的主板及顯示面板採用的LVDS介面電路的連接器是不同類型時的立體示意圖。FIG. 3 is a perspective view showing the connector of the LVDS interface circuit used in the main board and the display panel of FIG. 1 in different types.
圖4為根據本發明一實施例的用於平面顯示器的主板及顯示面板之間資料傳輸的LVDS介面電路的立體示意圖。4 is a perspective view of an LVDS interface circuit for data transmission between a motherboard and a display panel of a flat panel display according to an embodiment of the invention.
圖5為根據本發明另一實施例的用於平面顯示器的主板及顯示面板之間資料傳輸的LVDS介面電路的立體示意圖。FIG. 5 is a perspective view of an LVDS interface circuit for data transmission between a main board and a display panel of a flat display according to another embodiment of the present invention.
3．．．平面顯示器3. . . Flat panel display
31．．．主板31. . . Motherboard
311．．．第一連接器311. . . First connector
312．．．差分信號發射器312. . . Differential signal transmitter
313．．．微控器與縮放器313. . . Micro controller and scaler
32．．．顯示面板32. . . Display panel
321．．．第二連接器321. . . Second connector
322．．．差分信號接收器322. . . Differential signal receiver
323．．．時序控制與行列驅動器323. . . Timing control and row and column drivers
324．．．像素陣列324. . . Pixel array
4．．．LVDS介面電路4. . . LVDS interface circuit
41．．．輸出介面電路41. . . Output interface circuit
42．．．輸入介面電路42. . . Input interface circuit
43．．．複合式連接線43. . . Composite cable
431．．．雙絞線431. . . Twisted pair
432．．．第三連接器432. . . Third connector
433．．．第四連接器433. . . Fourth connector
Claims (8)
一輸出介面電路，設於該主板上，包括一第一連接器及一差分信號發射器，其中，該差分信號發射器接收該主板上的一第一信號並將該第一信號轉換成一差分信號以輸出至該第一連接器；
一輸入介面電路，設於該顯示面板上，包括一第二連接器及一差分信號接收器，其中，該差分信號接收器通過該第二連接器接收該差分信號並將該差分信號轉換成該顯示面板上的一第二信號；以及
一複合式連接線，包括一雙絞線及設於該雙絞線兩端的一第三連接器及一第四連接器，其中，該第一連接器及該第三連接器為一公一母的第一型連接器，該第二連接器及該第四連接器為一公一母的第二型連接器，且第一型連接器及第二型連接器為不同類型的連接器。A low voltage differential signal interface circuit for data transmission between a main board and a display panel of a flat display, the low voltage differential signal interface circuit comprising:
An output interface circuit is disposed on the motherboard, including a first connector and a differential signal transmitter, wherein the differential signal transmitter receives a first signal on the motherboard and converts the first signal into a differential signal Output to the first connector;
An input interface circuit is disposed on the display panel, and includes a second connector and a differential signal receiver, wherein the differential signal receiver receives the differential signal through the second connector and converts the differential signal into the a second signal on the display panel; and a composite cable including a twisted pair and a third connector and a fourth connector disposed at two ends of the twisted pair, wherein the first connector and the first connector The third connector is a male and female first type connector, the second connector and the fourth connector are a male and a female second type connector, and the first type connector and the second type Connectors are different types of connectors.
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| TW101108398A TWI442654B (en) | 2012-03-13 | 2012-03-13 | Low-voltage differential signaling interface circuit |
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| CN107689535A (en) * | 2017-07-07 | 2018-02-13 | 联想(北京)有限公司 | Switching card apparatus and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107689535A (en) * | 2017-07-07 | 2018-02-13 | 联想(北京)有限公司 | Switching card apparatus and electronic equipment |
| CN107689535B (en) * | 2017-07-07 | 2019-07-26 | 联想(北京)有限公司 | Switching card apparatus and electronic equipment |
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