CN101420572B - Implementing method for function of DP interface and television set - Google Patents
Implementing method for function of DP interface and television set Download PDFInfo
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- CN101420572B CN101420572B CN2007101240816A CN200710124081A CN101420572B CN 101420572 B CN101420572 B CN 101420572B CN 2007101240816 A CN2007101240816 A CN 2007101240816A CN 200710124081 A CN200710124081 A CN 200710124081A CN 101420572 B CN101420572 B CN 101420572B
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Abstract
The invention discloses a television which realizes the DisplayPort (DP for short) interface function and a realization method of the DP interface function, the television comprises a side end DP circuit board and a television main signal circuit board; the side end DP circuit board comprises a DP interface terminal for receiving DP signals; a first data format converter which is connected with the DP interface terminal and used for converting the DP signals to LVDS signals by carrying out the data format conversion; and one or two LVDS interfaces which are connected with output ends of the first data format converter and used for transmitting the LVDS signals; the television main signal circuit board comprises one or two LVDS interfaces for receiving the LVDS signals which are transmitted by the side end DP circuit board, input ends of the LVDS interfaces are connected with the output ends of the LVDS interfaces in the side end DP circuit board through AWG shielding connecting wires; and a second data format converter which is used for converting the LVDS signals to digital video signals or RGB signals by carrying out the data format conversion. The invention simply realizes the DP interface function, thereby having broad application prospects.
Description
Technical field
The present invention relates to conversion of signals and treatment technology, especially relate to the method that a kind of LVDS of utilization signal transmission realizes DisplayPort (being called for short DP) interface function, and the television set that utilizes this method.
Background technology
The DisplayPort interface is that (Video Electronics StandardAssociation is VESA) in the open interface standard at all display devices of in May, 2006 issue for the video electronics standard tissue.And HDMI (High Definition Multimedia Interface) (High-Definition Multimedia Interface, HDMI) the same, DisplayPort supports cable transmission of audio ﹠ video signal common, corresponding multiple high-quality digital audio, the DisplayPort standard has adopted the embedded timing topology of lower operating voltage, and then has reduced electromagnetic interference when improving compatibility.Owing to adopted little package framework, up to the bandwidth of 10.8Gb/s (Comparatively speaking DisplayPort can provide, up-to-date HDMI1.3 specification only provides the 10.2Gb/s bandwidth),, the highest 6 road 1080i or 3 road 1080p high definition video steamings supported of DisplayPort connecting line, the needs of tackling the amusement from generation to generation of above video of high definition 1080p and 7.1 channel audio grades calmly.DisplayPort also can support the color depth of WQXGA+ (2560 * 1600), QXGA resolution such as (2048 * 1536) and 30/36bit (every primary colors 10/12bit), and sufficient bandwidth has guaranteed that large-sized display devices is to more high-resolution demand from now on.
Can provide high bandwidth more, more high transfer rate and advantage than HDMI interface based on the DisplayPort interface, progressively be promoted the use of at present at computer and consumer electronics sector with the long-distance transmissions of being easier to.
Yet present processing television signals chip can't directly receive handles the DisplayPort interface signal.Consider that the DisplayPort interface standard is widely used just day by day, therefore, how abundant according to existing processing television signals technology, under the situation that keeps existing the least possible change of TV signal processing system utilizing which, realize handling the function of DisplayPort interface signal, become one of technical barrier of current urgent need solution.
Summary of the invention
The objective of the invention is to propose the method that a kind of LVDS of utilization signal transmission realizes the DisplayPort interface function, and the television set that utilizes this method, with under the situation that keeps existing the least possible change of TV signal processing system utilizing which, realized the DisplayPort interface function.
For solving technical problem of the present invention, the present invention discloses a kind of television set of the DP of realization interface function, comprises side DP circuit board and TV main signal circuit plate; Described side DP circuit board comprises: the DP Interface Terminal that is used to receive the DP signal; Be connected with described DP Interface Terminal, be used for the DP signal is done Data Format Transform, be converted to first data format converter of LVDS signal; And 1 or 2 the LVDS interface that is used to transmit the LVDS signal that connects the output of described first data format converter; Described TV main signal circuit plate comprises: 1 or 2 LVDS interface that is used to receive the LVDS signal that described side DP circuit board transmits, and its input is connected with the output of LVDS interface in the described side DP circuit board by AWG shielding connecting line; And to be used for the LVDS conversion of signals be second data format converter of digital video signal or rgb signal.
More excellent, described DP signal corresponds to the high-definition signal that definition is higher than the 1080P form, is used for transmitting the number that the LVDS interface of LVDS signal and described TV main signal circuit plate be used to receive the LVDS interface of LVDS signal in the described side DP circuit board and is 2.
More excellent, described DP signal corresponds to the signal that definition is lower than the 1080P form, is used for transmitting the number that the LVDS interface of LVDS signal and described TV main signal circuit plate be used to receive the LVDS interface of LVDS signal in the described side DP circuit board and is 1.
More excellent, the structure of LVDS interface that the LVDS interface that is used for transmitting the LVDS signal in the described side DP circuit board and described TV main signal circuit plate are used to receive the LVDS signal is consistent, and both can be single or double connector.
More excellent, described TV main signal circuit plate also comprises: connect the output of described second data format converter, be used for digital video signal or rgb signal are made the image controller that image optimization and convergent-divergent are handled at least.
In addition, the present invention also discloses a kind of implementation method of DP interface function, comprising: utilize the DP Interface Terminal to receive the DP signal; The DP signal is done Data Format Transform handle, export 1 road or 2 road LVDS signals; By AWG shielding connecting line described LVDS signal is transmitted, and be digital video signal or rgb signal its Data Format Transform.
More excellent, if described DP signal corresponds to the high-definition signal that definition is higher than the 1080P form, then the DP signal conversion processes is become 2 road LVDS signals.
More excellent, if described DP signal corresponds to the signal that definition is lower than the 1080P form, then the DP signal conversion processes is become 1 road LVDS signal.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention in simple mode, by being the LVDS signal with the DP conversion of signals, utilizes the LVDS signal transmission form to realize the DisplayPort interface function under the situation that is keeping existing the least possible change of TV signal processing system utilizing which;
2, the present invention is simple in structure, has broad application prospects, and helps further accelerating DisplayPort interface applying in computer and consumer electronics field.
Description of drawings
Fig. 1 is the structural representation of the side DP circuit board among the present invention.
Fig. 2 is the structural representation of the TV main signal circuit plate among the present invention.
Fig. 3 is the pin signal definition schematic diagram of the LVDS interface in a preferred embodiment of the present invention.
Fig. 4 is the pin signal definition schematic diagram of the LVDS interface in another preferred embodiment of the present invention.
Embodiment
Core concept of the present invention is, utilize DisplayPort (being called for short DP) Interface Terminal to receive after the DP signal, the DP signal is done Data Format Transform, be converted to low-voltage differential signal (Low Voltage DifferentialSignaling, LVDS), realize the DP interface function by the LVDS signal transmission form.
The present invention makes full use of existing processing television signals technology, under the situation that keeps existing the least possible change of TV signal processing system utilizing which, realizes the DP interface function by the LVDS signal transmission form.Improvement of the present invention comprises 2 parts, the one, and increase and to be used to receive the DP signal, and be the side DP circuit board 100 of LVDS signal the DP conversion of signals, please refer to shown in Figure 1; Simultaneously, existing TV signal processing system utilizing which is done suitable improvement, please refer to the structural representation of TV main signal circuit plate 200 shown in Figure 2.
Please refer to shown in Figure 1.Described side DP circuit board 100 comprises: DP Interface Terminal 110, first data format converter 120, two LVDS interfaces 130 and 140.Described DP Interface Terminal 110 connects described first data format converter 120, and the DP signal that receives is transferred to described first data format converter 120; And described first data format converter 120 receives after the DP signal, is converted into LVDS signal and output.
Wherein, be higher than the above high-definition video signal of 1080P if the DP signal is a definition, then described first data format converter, 120 output two-way LVDS signals wherein one the road reach described LVDS interface 130, and another road reach described LVDS interface 140; Otherwise 120 output of described first data format converter, one road LVDS signal is to described LVDS interface 130 or 140.That is to say that according to different DP signals, the described LVDS interface 130 in the described side DP circuit board 100 also can be merged into an interface with described LVDS interface 140.
Simultaneously, please refer to shown in Figure 2.Described TV main signal circuit plate 200 comprises: LVDS interface 210 and 220, second data format converter 230 and image controller 240.The input of described LVDS interface 210 connects the output that lead is connected to the interface of LVDS described in Fig. 1 130 by the shielding of 28#AWG (American Wire Gauge); Equally, the input of described LVDS interface 220 also connects the output that lead is connected to the interface of LVDS described in Fig. 1 140 by the shielding of 28#AWG.And the output of described LVDS interface 210 and 220 reaches described second data format converter 230 with the LVDS signal that receives, is digital video signal or rgb signal by described second data format converter 230 with the LVDS conversion of signals, and after exporting described image controller 240 to and doing image optimization, convergent-divergent etc. and handle, the output video data are to the display unit 300 that is connected with described TV main signal circuit plate 200, as LCDs etc.
Certainly, according to the difference of DP signal, when only having one road LVDS signal among Fig. 1, also can only receive one road LVDS signal among Fig. 2; That is to say that in some cases, described LVDS interface 210 also can be merged into an interface with described LVDS interface 220.
In addition, the described LVDS interface 130 and 140 that the DP of side described in Fig. 1 circuit board 100 comprises, and the described LVDS interface 210 and 220 that comprises of the main signal circuit of TV described in Fig. 2 plate 200, has identical structure, be with a kind of element, such as, can be single or double connector, its pin definitions is as shown in Figure 3.Comprise 4 pairs of differential data pins: RX0+/-, RX1+/-, RX2+/-and RX3+/-; 1 pair of differential clocks line pin: RXCLK+/-; Power pin VCC and earth signal pin.
And when only needing a LVDS interface 130 or 140 among Fig. 1, also only need a LVDS interface 210 or 220 among Fig. 2; That is to say, described LVDS interface 130 is merged into an interface with described LVDS interface 130, described LVDS interface 210 is also merged into an interface with described LVDS interface 220, only needs with the shielding connecting line of a 28#AWG input of described LVDS interface 210 or 220 to be connected to the output of the interface of LVDS described in Fig. 1 130 or 140 this moment.At this moment, the pin definitions of the interface after the merging as shown in Figure 4.
To sum up, the present invention has following useful technique effect:
1, the present invention in simple mode, by being the LVDS signal with the DP conversion of signals, utilizes the LVDS signal transmission form to realize the DisplayPort interface function under the situation that is keeping existing the least possible change of TV signal processing system utilizing which;
2, the present invention is simple in structure, has broad application prospects, and helps further accelerating DisplayPort interface applying in computer and consumer electronics field.
Claims (6)
1. a television set of realizing the DP interface function is characterized in that, comprises side DP circuit board and TV main signal circuit plate;
Described side DP circuit board comprises: the DP Interface Terminal that is used to receive the DP signal; Be connected with described DP Interface Terminal, be used for the DP signal is done first data format converter that Data Format Transform is treated to the LVDS signal; And 1 or 2 the LVDS interface that is used to transmit the LVDS signal that connects the output of described first data format converter;
Described TV main signal circuit plate comprises: 1 or 2 LVDS interface that is used to receive from the LVDS signal of described side DP circuit board output, and its input is connected with the output of LVDS interface in the described side DP circuit board by AWG shielding connecting line; And be used for the LVDS signal is done second data format converter that Data Format Transform is treated to digital video signal or rgb signal.
2. the television set of realization DP interface function according to claim 1, it is characterized in that, when described DP signal corresponds to the high-definition signal of the above form of 1080P, be used for transmitting the number that the LVDS interface of LVDS signal and described TV main signal circuit plate be used to receive the LVDS interface of LVDS signal in the described side DP circuit board and be 2.
3. the television set of realization DP interface function according to claim 1, it is characterized in that, when described DP signal corresponds to definition and is lower than the signal of 1080P form, be used for transmitting the number that the LVDS interface of LVDS signal and described TV main signal circuit plate be used to receive the LVDS interface of LVDS signal in the described side DP circuit board and be 1.
4. the television set of realization DP interface function according to claim 1, it is characterized in that, the structure of LVDS interface that the LVDS interface that is used for transmitting the LVDS signal in the described side DP circuit board and described TV main signal circuit plate are used to receive the LVDS signal is consistent, and both are single or double connector.
5. the television set of realization DP interface function according to claim 1, it is characterized in that, described TV main signal circuit plate also comprises: connect the output of described second data format converter, be used for digital video signal or rgb signal are made the image controller that image optimization and convergent-divergent are handled at least.
6. the implementation method of a DP interface function is characterized in that, comprising:
Utilize the DP Interface Terminal to receive the DP signal;
The DP signal is done Data Format Transform handle, export 1 road or 2 road LVDS signals;
Even described DP signal corresponds to the signal that definition is lower than the 1080P form, then the DP conversion of signals is become 1 road LVDS signal;
If the above high-definition signal of the corresponding definition 1080P of described DP signal form then becomes the DP conversion of signals 2 road LVDS signals;
By AWG shielding connecting line described LVDS signal is transmitted, and it is done Data Format Transform be treated to digital video signal or rgb signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101240816A CN101420572B (en) | 2007-10-24 | 2007-10-24 | Implementing method for function of DP interface and television set |
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| CN2007101240816A CN101420572B (en) | 2007-10-24 | 2007-10-24 | Implementing method for function of DP interface and television set |
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| CN101420572A CN101420572A (en) | 2009-04-29 |
| CN101420572B true CN101420572B (en) | 2011-08-31 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103281502A (en) * | 2013-06-14 | 2013-09-04 | 南京欧帝科技有限公司 | Quadruple-high-definition liquid crystal color screen input interface |
| CN103794172B (en) | 2014-01-22 | 2016-03-09 | 北京京东方显示技术有限公司 | A kind of interface conversion circuit, displaying panel driving method and display device |
| CN104469618B (en) * | 2014-12-30 | 2018-02-02 | 青岛歌尔声学科技有限公司 | A kind of speaker protection circuit |
| JP6574493B2 (en) * | 2015-06-29 | 2019-09-11 | 武漢精測電子集団股▲ふん▼有限公司Ｗｕｈａｎ Ｊｉｎｇｃｅ Ｅｌｅｃｔｒｏｎｉｃ Ｇｒｏｕｐ Ｃｏ．， Ｌｔｄ． | Method and system for converting LVDS video signals to DP video signals |
| CN105049773A (en) * | 2015-06-29 | 2015-11-11 | 武汉精测电子技术股份有限公司 | Method of transforming LVDS video signal into DP video signal and system of transforming LVDS video signal into DP video signal |
| CN105915833A (en) * | 2015-12-14 | 2016-08-31 | 乐视致新电子科技（天津）有限公司 | Video signal processing method and equipment |
| CN105812702B (en) * | 2016-03-17 | 2018-11-27 | 武汉精测电子集团股份有限公司 | A kind of DP picture signal is converted into the device and method of LVDS picture signal |
| CN106027938B (en) * | 2016-06-16 | 2019-04-05 | 南京大学 | A kind of DVI signal turns the system and signal conversion method of EDP signal |
| CN115550590A (en) * | 2022-09-28 | 2022-12-30 | 珠海海奇半导体有限公司 | DP conversion equipment, display system and DP conversion display method |
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