CN201655267U - Display screen compatible interface circuit and television with same - Google Patents
Display screen compatible interface circuit and television with same Download PDFInfo
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- CN201655267U CN201655267U CN2010200133655U CN201020013365U CN201655267U CN 201655267 U CN201655267 U CN 201655267U CN 2010200133655 U CN2010200133655 U CN 2010200133655U CN 201020013365 U CN201020013365 U CN 201020013365U CN 201655267 U CN201655267 U CN 201655267U
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- signal transmission
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Abstract
The utility model discloses a display screen compatible interface circuit and a television with the same. The interface circuit is disposed on a signal processing board and includes LVDS connectors of multiple types, and power pins, video signal transmission pins and control signal transmission pins of the various LVDS connectors are respectively correspondingly connected with a display screen power supply on the signal processing board, and an LVDS signal output end and a display screen control signal output end of a video signal processing circuit. The display screen compatible interface circuit adopted can greatly increase compatibility and adaptability of signal processing boards, realizes standard design of the signal processing boards, accordingly assists in shortening of development cycle, saves development cost, and lowers purchase and storage management difficulty.
Description
Technical field
The utility model belongs to the interface circuit technical field, specifically, relate to a kind of can compatible plurality of specifications display screen connection request interface circuit and the televisor that adopts described interface circuit design.
Background technology
The liquid crystal display that present liquid crystal TV set is adopted exists the WXGA screen of common single channel LVDS interface, the FULL HD screen of dual-channel LVDS, the top grade screen of 10BIT and the plurality of specifications such as common screen of 8BIT, some liquid crystal display adopts traditional standard standup LVDS connector to peg graft with the television signal plate and communicates by letter, and some liquid crystal display then selects for use SMD LVDS connector to be connected with the television signal plate.
The tradition liquid crystal TV set need design the interface circuit with its coupling according to the specification of the liquid crystal display that will dispose targetedly, and carry out fabric swatch, to satisfy the connection request between television signal plate and the liquid crystal display in the design process of its signal plate.Adopt this design to cause a kind of liquid crystal display of specification to need the independent signal plate of a corresponding cover, not only increased technician's workload, prolonged the construction cycle, and miscellaneous signal plate cause difficulty not only can for buying and standardization, and also can produce bigger trouble in the stock control process.
Based on this, can on the television signal plate, design a kind of general interface circuit, make that same block signal plate can compatible polytype liquid crystal display, be that present televisor is made one of subject matter that industry needs to be resolved hurrily.
The utility model content
The utility model is for the problem of the interface circuit versatility difference that solves the signal-processing board that is connected with display screen in the prior art, a kind of display screen compatibility interface circuit is provided, make same block signal disposable plates to be connected, thereby improved the compatibility and the adaptability of signal-processing board greatly with the display screen coupling of plurality of specifications.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of display screen compatibility interface circuit, described interface circuit is arranged on the signal-processing board, comprise polytype LVDS connector, the power pin of various LVDS connectors, video signal transmission pin and control signal transmission pin respectively with described signal-processing board on the display screen power supply and the LVDS signal output part of video processing circuit, the display screen control signal output ends is corresponding is connected.
Further, in described control signal transmission pin, include LVDS mode of operation base pin selection, select signal output part to be connected with the LVDS mode of operation of described video processing circuit.
Further again, consider the LVDS interface type that present LCDs is commonly used, the utility model preferably adopts standard standup LVDS connector and SMD LVDS connector to design described interface circuit.
Further again, in described SMD LVDS connector, include one group of LVDS video signal transmission pin; In described standard standup LVDS connector, include two groups of LVDS video signal transmission pins, and wherein after the corresponding connection of LVDS video signal transmission pin of one group of LVDS video signal transmission pin and described SMD LVDS connector, be connected with one group of LVDS signal output part of described video processing circuit.
Further, preferably the socket part with described LVDS connector is arranged on the signal-processing board, by winding displacement connect the respective socket (socket or plug) of display board in the display screen or directly and the plug that is provided with on the display board plug.
Based on above-mentioned display screen compatibility interface circuit structure, the utility model provides a kind of televisor that adopts described display screen compatibility interface circuit design again, by polytype LVDS connector is set on the signal-processing board of televisor simultaneously, and according to the pin definitions of each LVDS connector and the corresponding connection of corresponding function circuit on the signal-processing board, thereby not only satisfied the request signal transmission between the display board and signal-processing board in the display screen, and can on described signal-processing board, find the LVDS connector that can match and connect for present different size display screen, realized that thus same block signal disposable plates connects the compatibility of different size display screen.
Compared with prior art, advantage of the present utility model and good effect are: adopt display screen compatibility interface circuit of the present utility model can improve the compatibility and the adaptability of signal-processing board greatly, realized the standardized designs of signal-processing board, thereby help to shorten the construction cycle, save cost of development, reduce the difficulty of buying and stock control.
After reading the detailed description of the utility model embodiment in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the display screen compatibility interface circuit that proposes of the utility model;
Fig. 2 is two types the location diagram of LVDS connector a kind of embodiment of layout on signal-processing board among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.
For the present LVDS interface that LCDs adopted, nothing more than standard standup LVDS connector and two kinds of forms of SMD LVDS connector.On this basis, the display screen of different size can be different with the request signal transmission between the signal-processing board according to it, the LVDS connector of selecting configuration to have different number of pins.If the signal-processing board that independent design can match and connect at the display screen of different size, then will cause the variation of signal-processing board, cause difficulty not only for the management and the standardized designs of signal-processing board, and a large amount of repeated labors that drop into also can cause the prolongation of construction cycle and the rising of design cost.
Present embodiment is in order to address the above problem, one cover display screen compatibility interface design proposal has been proposed, according to having LVDS interface type and the request signal transmission that display screen is used always now, on signal-processing board, be provided with polytype LVDS connector selectively, and by various types of LVDS connectors are carried out pin definitions, satisfy the request signal transmission of all size display screen, made a block signal disposable plates can support the connection request of plurality of specifications display screen simultaneously.
Signal-processing board with televisor inside is an example below, elaborates the concrete structure form of described display screen compatibility interface circuit by a specific embodiment.
Referring to shown in Figure 1, the display screen compatibility interface circuit of present embodiment adopts the standard standup LVDS connector CON1 of double 40 pins (20*2) and the SMD LVDS connector J 3 of one 32 pin to form, and present embodiment preferably is arranged on the socket part of connector on the signal-processing board of televisor.In order to realize that signal-processing board is connected communication with the display screen of plurality of specifications, in a plurality of pins of described standard standup LVDS socket CON1 and SMD LVDS socket J3, include at least: power pin, control signal transmission pin and video signal transmission pin.
Specific to Fig. 1,, shield such as WXGA etc. because the requirement of adopting the display screen of standard standup LVDS connector to have at present receives single channel LVDS signal; The then requirement that has receives the dual-channel LVDS signal, shields such as FULL HD.Consider based on compatibility, present embodiment is first group of LVDS video signal transmission pin with 29～38 pin definitions of standard standup LVDS socket CON1, with 15～24 pin definitions is second group of LVDS video signal transmission pin, respectively with the television signal disposable plates on the corresponding connection of two groups of LVDS signal output parts of video processing circuit.When connecting single channel LVDS screen and use, only select wherein one group of LVDS video signal transmission pin to be connected and get final product with display screen interface; And when connecting the use of dual-channel LVDS screen,, can realize the real-time Transmission of dual-channel LVDS vision signal between signal-processing board and display screen then with in all corresponding connection of two groups of LVDS video signal transmission pins with the respective pin of display screen interface.
1,2,3,4 pins of standard standup LVDS socket CON1 are power pin, by the display screen power supply VCC_Panel on the filter network connection signal-processing board of being made up of shunt capacitance C11, C18, for the display board in the display screen provides operating voltage.5～8,13,14,27,28 pins of socket CON1 are ground pin, connect the signal ground on the signal-processing board.9～12 pins of socket CON1 are control signal transmission pin, connect the display screen control signal output ends of video processing circuit on the signal-processing board.Wherein, the 10th pin is the LVDS mode of operation base pin selection of display screen, select signal output part to be connected with the LVDS mode of operation of video processing circuit,, realize effective switching the display screen mode of operation by output high level or low level control signal.In order to improve the reliability of signal transmission, present embodiment preferably connects a bleeder circuit on the LVDS of described display screen mode of operation base pin selection, as shown in Figure 1.Described bleeder circuit is made up of divider resistance R300, R301, one end connects display screen power supply VCC_Panel, other end ground connection, and the dividing potential drop node connects the LVDS mode of operation base pin selection of described display screen, be the 10th pin of socket CON1, the high level signal that transmits is carried out voltage clamping.The 9th pin is the dynamic contrast control pin of display screen, shows the contrast adjustment signal output part with the screen of video processing circuit and is connected.11st, 12 pins are the transmission pin of two-way transmission backlight illumination conditioning signal, and 11 pin receive the backlight illumination feedback signal from LCDs; 12 pin connect the backlight illumination conditioning signal output terminal of described video processing circuit, by the voltage signal to LCDs output different potentials, realize effective adjusting of brightness of backlight.9,11,12 pins here can be connected with video processing circuit according to specifically needing optionally of display screen.
Owing to adopt the display screen of SMD LVDS connector only to require to transmit one group of LVDS vision signal at present, therefore, when the SMD LVDS socket J3 among Fig. 1 is carried out pin definitions, only need one group of LVDS video signal transmission pin of definition to get final product, as 13 of socket J3,14,16,17,19,20,22,23,25,26 pins, the first group of LVDS video signal transmission pin that connects standard standup LVDS socket CON1, i.e. 29～38 pins, and then the corresponding connection of LVDS signal output part by video processing circuit on described standard standup LVDS socket CON1 and the signal-processing board, to realize the real-time Transmission of 4 pairs of differential data signals and 1 pair of differential clock signal.
1～5 pin is a power pin in described SMD LVDS socket J 3, connects the display screen power supply VCC_Panel on the signal-processing board, for the display board in the display screen provides operating voltage.6～8,12,15,18,21,24,27,31,32 pins are ground pin, connect the signal ground on the signal-processing board.The 10th pin is the LVDS mode of operation base pin selection of display screen, selects signal output part to be connected by the 10th pin of standard standup LVDS socket CON1 with the LVDS mode of operation of video processing circuit, realizes the effective switching to the display screen mode of operation.9,11,28～30 pins are idle, can be used for transmitting the control signal of expansion, show contrast adjustment signal, backlight illumination feedback signal and backlight illumination conditioning signal etc. such as screen.
Employing compatibility interface circuit structure shown in Figure 1 on the signal-processing board of televisor only needs the interface type according to display screen, select one of them LVDS socket and display screen interface to peg graft, and perhaps is connected with display screen interface by winding displacement to get final product.
Signal-processing board is connected with display screen for convenience, preferably SMD LVDS socket J3 is arranged on the marginal position of signal-processing board, as shown in Figure 2, standard standup LVDS socket CON1 is parallel with described SMD LVDS socket J3, and be arranged on the position of distance signal disposable plates edge one segment distance, preferably allow first group of LVDS video signal transmission pin of the LVDS video signal transmission pin of SMD LVDS socket J3 and standard standup LVDS socket CON1 adjacent, as shown in Figure 2, to shorten the distance of signal transmission, reduce disturbing effect.
The utility model is by the above-mentioned compatibility interface circuit of design on the television signal disposable plates, not only can connect single channel LVDS liquid crystal display and dual-channel LVDS liquid crystal display, but also can compatible SMD LVDS interface and standard standup LVDS interface, thereby improved the adaptability of signal-processing board greatly, can be widely used in all signal plate that need connect liquid crystal display designs.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection domain of the present utility model.
Claims (10)
1. display screen compatibility interface circuit, it is characterized in that: described interface circuit is arranged on the signal-processing board, comprise the LVDS connector, the power pin of LVDS connector, video signal transmission pin and control signal transmission pin respectively with described signal-processing board on the display screen power supply and the LVDS signal output part of video processing circuit, the display screen control signal output ends is corresponding is connected.
2. display screen compatibility interface circuit according to claim 1, it is characterized in that: in described control signal transmission pin, include LVDS mode of operation base pin selection, select signal output part to be connected with the LVDS mode of operation of described video processing circuit.
3. display screen compatibility interface circuit according to claim 1 and 2 is characterized in that: described LVDS connector comprises standard standup LVDS connector and SMD LVDS connector.
4. display screen compatibility interface circuit according to claim 3 is characterized in that: include one group of LVDS video signal transmission pin in described SMD LVDS connector; In described standard standup LVDS connector, include two groups of LVDS video signal transmission pins, and wherein after the corresponding connection of LVDS video signal transmission pin of one group of LVDS video signal transmission pin and described SMD LVDS connector, be connected with one group of LVDS signal output part of described video processing circuit.
5. display screen compatibility interface circuit according to claim 3, it is characterized in that: the socket part of described LVDS connector is arranged on the signal-processing board, by winding displacement connect the respective socket of display board in the display screen or directly and the plug that is provided with on the display board plug.
6. televisor, comprise signal-processing board and display screen, it is characterized in that: described signal-processing board is provided with a display screen compatibility interface circuit, comprise the LVDS connector, the power pin of LVDS connector, video signal transmission pin and control signal transmission pin respectively with described signal-processing board on the display screen power supply and the LVDS signal output part of video processing circuit, the display screen control signal output ends is corresponding is connected.
7. televisor according to claim 6 is characterized in that: include LVDS mode of operation base pin selection in described control signal transmission pin, select signal output part to be connected with the LVDS mode of operation of described video processing circuit.
8. according to claim 6 or 7 described televisors, it is characterized in that: described LVDS connector comprises standard standup LVDS connector and SMD LVDS connector.
9. televisor according to claim 8 is characterized in that: include one group of LVDS video signal transmission pin in described SMD LVDS connector; In described standard standup LVDS connector, include two groups of LVDS video signal transmission pins, and wherein after the corresponding connection of LVDS video signal transmission pin of one group of LVDS video signal transmission pin and described SMD LVDS connector, be connected with one group of LVDS signal output part of described video processing circuit.
10. televisor according to claim 8 is characterized in that: the socket part of described LVDS connector is arranged on the signal-processing board, by winding displacement connect the respective socket of display board in the display screen or directly and the plug that is provided with on the display board plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200133655U CN201655267U (en) | 2010-01-06 | 2010-01-06 | Display screen compatible interface circuit and television with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200133655U CN201655267U (en) | 2010-01-06 | 2010-01-06 | Display screen compatible interface circuit and television with same |
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| Publication Number | Publication Date |
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| CN201655267U true CN201655267U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010200133655U Expired - Fee Related CN201655267U (en) | 2010-01-06 | 2010-01-06 | Display screen compatible interface circuit and television with same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198807A (en) * | 2013-04-12 | 2013-07-10 | 深圳市华星光电技术有限公司 | Display signal processing system and circuit board and liquid crystal display device |
| CN103345916A (en) * | 2013-06-21 | 2013-10-09 | 深圳市华星光电技术有限公司 | All-purpose circuit board of short-circuiting bar |
| CN107038990A (en) * | 2017-05-09 | 2017-08-11 | 西安诺瓦电子科技有限公司 | Connector assembly, display screen control card and display screen system |
| CN110880305A (en) * | 2019-12-23 | 2020-03-13 | 北京百联长通科技有限公司 | Data display device |
| WO2021000307A1 (en) * | 2019-07-03 | 2021-01-07 | 西安诺瓦星云科技股份有限公司 | Plug-in assembly, display control card and display system |
-
2010
- 2010-01-06 CN CN2010200133655U patent/CN201655267U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198807A (en) * | 2013-04-12 | 2013-07-10 | 深圳市华星光电技术有限公司 | Display signal processing system and circuit board and liquid crystal display device |
| WO2014166126A1 (en) * | 2013-04-12 | 2014-10-16 | 深圳市华星光电技术有限公司 | Display signal processing system, circuit board, and liquid crystal display apparatus |
| CN103198807B (en) * | 2013-04-12 | 2016-03-30 | 深圳市华星光电技术有限公司 | Display disposal system, circuit board and liquid crystal indicator |
| CN103345916A (en) * | 2013-06-21 | 2013-10-09 | 深圳市华星光电技术有限公司 | All-purpose circuit board of short-circuiting bar |
| CN103345916B (en) * | 2013-06-21 | 2016-05-04 | 深圳市华星光电技术有限公司 | A kind of omnipotent circuit board of short bar |
| CN107038990A (en) * | 2017-05-09 | 2017-08-11 | 西安诺瓦电子科技有限公司 | Connector assembly, display screen control card and display screen system |
| CN107038990B (en) * | 2017-05-09 | 2019-12-24 | 西安诺瓦星云科技股份有限公司 | Plug-in assembly, display screen control card and display screen system |
| WO2021000307A1 (en) * | 2019-07-03 | 2021-01-07 | 西安诺瓦星云科技股份有限公司 | Plug-in assembly, display control card and display system |
| CN110880305A (en) * | 2019-12-23 | 2020-03-13 | 北京百联长通科技有限公司 | Data display device |
| CN110880305B (en) * | 2019-12-23 | 2024-05-14 | 北京百联长通科技有限公司 | Data display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20130106 |