CN102231266A - LCD TV (Liquid Crystal Display Television) driving system in modularized splicing mode and controlling method thereof - Google Patents
LCD TV (Liquid Crystal Display Television) driving system in modularized splicing mode and controlling method thereof Download PDFInfo
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- CN102231266A CN102231266A CN2011101893626A CN201110189362A CN102231266A CN 102231266 A CN102231266 A CN 102231266A CN 2011101893626 A CN2011101893626 A CN 2011101893626A CN 201110189362 A CN201110189362 A CN 201110189362A CN 102231266 A CN102231266 A CN 102231266A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 45
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- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 18
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- 230000005236 sound signal Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
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- 238000004519 manufacturing process Methods 0.000 abstract description 4
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- 230000001427 coherent effect Effects 0.000 description 1
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Abstract
The invention discloses an LCD TV (Liquid Crystal Display Television) driving system in a modularized splicing mode and a controlling method thereof. The LCD TV driving system comprises a first circuit board and an LCD driving and decoding control board, wherein a backlight module, a power amplifier module and a power module are integrated in the first circuit board, wherein the first circuit board is connected with the LCD driving and decoding control board through a butt-joint contact pin and a plug seat and the LCD driving and decoding control board is used for the transmission control of system data, the drive control of an LCD and the decoding of audio/video input signals. In the system provided by the invention, a modularized integrated design is adopted the system has the advantages of avoiding the electromagnetic interference is avoided, increasing the reusability and the generality of modules, reducing the system design difficulty and the cost, improving the production efficiency and the product quality and realizing the quick upgrade of the system.
Description
Technical field
The present invention relates to LCD TV drive system and control method.
Background technology
Existing LCD TV drive system adopts whole interfaces and treatment circuit all to be incorporated on the same individual layer PCB, development along with TV tech, TV can become a platform, a multimedia terminal, function from strength to strength, the decoding chip for driving has all adopted BGA encapsulation and high speed DDR2 or DDR3 basically, and utilization individual layer PCB can not finish the wires design of the PCB that drives decoded portion substantially.When being arranged on the same circuit board, can produce electromagnetic interference (EMI), influence quality of signals such as power amplifier module and audio frequency and video processing module.
Publication number is that the range of application of patent scheme of CN200910052837.X is too narrow, is subjected to the restriction of drive scheme, can only apply to a kind of type product, can not realize modularization standardization and reusability.
Summary of the invention
The present invention has realized each module integrated drive scheme that carries out connecting method of liquid crystal electricity, adopt the integrated design of modularization, avoid electromagnetic interference (EMI), can improve reuse, the versatility of general module, reduce the system design difficulty, also can reduce cost, promote production efficiency and product quality.
The invention provides the control method of the LCD TV drive system of modularization connecting method, comprising:
The LCD TV drive system comprises backlight module integrated, power amplifier module, the first circuit board (being power panel) of power module and the liquid crystal display that is electrically connected with described first circuit board drive and the decoding control panel, specifically can carry out the connection of above two plates by plug-in type circuit board coupling arrangement; Behind the described LCD TV drive system external power supply, liquid crystal display drives and the decoding control panel enters holding state, after receiving outside start-up command, described liquid crystal display drives and decoding control panel out-put supply starting-up signal, after described power module is received the power supply starting-up signal, give whole LCD TV drive system power supply, operational system enters open state;
Detect present mode whether input signal is arranged, if present mode is the AV pattern, the AV port has the audio frequency and video input signal, then the interface by first circuit board and liquid crystal display driving and decoding control panel is transmitted to described liquid crystal display driving and decoding control panel, carry out the vision signal decoding, be sent to display screen and show, sound signal is handled the back through audio and is returned to amplify to described power amplifier module by interface and be transferred to loudspeaker simultaneously; If present mode is the HDMI pattern, the HDMI interface has the audio frequency and video input signal, then carry out vision signal decoding, be sent to display screen and show, decoded audio signal is handled the back through audio and is returned to amplify to described power amplifier module by interface and be transferred to loudspeaker.
The present invention also provides a kind of LCD TV drive system of modularization connecting method, and described LCD TV drive system comprises backlight module integrated, the first circuit board of power amplifier module, power module, and liquid crystal display drives and the decoding control panel; Described first circuit board drives with liquid crystal display by plug-in type circuit board coupling arrangement and the decoding control panel is connected; Described liquid crystal display driving and decoding control panel are used for the drive controlling of system data transmission control, LCDs and the audio frequency and video input signal are decoded.
Further, described plug-in type circuit board coupling arrangement comprises an insulating support plug and an insulating support socket that is complementary, wherein said insulating support plug symmetria bilateralis is provided with at least one socket conductive pin, one end of every described plug conducting pin is horizontal to be used to connect described insulating support socket, other end bending is 90 degree, not conducting mutually between every socket conductive pin; The bottom of described insulating support socket has at least one plug socket conductive pin, not conducting mutually between every plug socket conductive pin, a side of described insulating support socket is provided with at least one row and the corresponding jack that conducts of described socket conductive pin, and the jack of described insulating support socket flexibly connects by plug conducting pin one end of inserting mode and described insulating support plug.
Further, described liquid crystal display driving and decoding control panel are provided with HDMI interface, VGA interface, USB interface.Described liquid crystal display drives and the decoding control panel adopts bilayer or multi-layer PCB board design circuit, unified Definition the operation system driver of bottom.
Further, described first circuit board is provided with AV interface, YUV interface, SCART interface, S-VIDEO interface, TV RF interface.Described first circuit board adopts individual layer pcb board design circuit, the wiring of unified integrated backlight module, power amplifier module, power module.
Further, the backlight module on the described first circuit board is connected LCDs by power lead with data line, and the power amplifier module output terminal is connected with loudspeaker.
The present invention has following advantage:
1, system of the present invention adopts the mode of module splicing that whole TV system is designed, the low speed input end of analog signal mouth that a part is difficult for being interfered (AV YUV SCART RF etc.), audio frequency power amplifier and backlight drive layout on power panel, avoid electromagnetic interference (EMI).
2, described liquid crystal display drive and decoding control panel unified Definition the operation system driver of bottom, can mate the power panel of different model.Improved reuse, the compatibility of general module, also can reduce production cost, promote production efficiency and product quality.
3, described power panel is connected with liquid crystal display driving and decoding control panel by plug-in type circuit board coupling arrangement, the connected mode of this plugs and sockets connects more neat standard than traditional flexible cord, connecting line is not easy not prison welding to occur and breaks, and convenient circuit board and the realization system of changing fast upgrades fast.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the module diagram of the LCD TV drive system of modularization connecting method of the present invention.
Fig. 2 is the structural representation of plug-in type circuit board coupling arrangement of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, the embodiment of the invention provides a kind of LCD TV drive system of modularization connecting method, described LCD TV drive system comprises backlight module integrated, the first circuit board (being power panel) of power amplifier module, power module, and liquid crystal display drives and the decoding control panel; Described first circuit board drives with liquid crystal display by plug-in type circuit board coupling arrangement and the decoding control panel is connected; Described liquid crystal display driving and decoding control panel are used for the drive controlling of system data transmission control, LCDs and the audio frequency and video input signal are decoded.
Backlight module on the described first circuit board is connected LCDs by power lead with data line, and the power amplifier module output terminal is connected with loudspeaker.
As shown in Figure 2, described plug-in type circuit board coupling arrangement comprises an insulating support plug and an insulating support socket that is complementary, wherein said insulating support plug symmetria bilateralis is provided with at least one socket conductive pin, one end of every described plug conducting pin is horizontal to be used to connect described insulating support socket, other end bending is 90 degree, not conducting mutually between every socket conductive pin; The bottom of described insulating support socket has at least one plug socket conductive pin, not conducting mutually between every plug socket conductive pin, a side of described insulating support socket is provided with at least one row and the corresponding jack that conducts of described socket conductive pin, and the jack of described insulating support socket flexibly connects by plug conducting pin one end of inserting mode and described insulating support plug.
As a kind of embodiment, be welded with the insulating support plug in the described plug-in type circuit board coupling arrangement on the described first circuit board, inputoutput data line, control line all are connected with the plug conducting pin; Be welded with the insulating support socket in the described plug-in type circuit board coupling arrangement on described liquid crystal display driving and the decoding control panel, inputoutput data line, control line all are connected with the socket conductive pin.
As another kind of embodiment, be welded with the insulating support socket in the described plug-in type circuit board coupling arrangement on the described first circuit board, inputoutput data line, control line all are connected with the socket conductive pin; Be welded with the insulating support plug in the described plug-in type circuit board coupling arrangement on described liquid crystal display driving and the decoding control panel, inputoutput data line, control line all are connected with the plug conducting pin.
Described liquid crystal display drives and the decoding control panel is provided with HDMI interface, VGA interface, USB interface.Described liquid crystal display drives and the decoding control panel adopts bilayer or multi-layer PCB board design circuit, unified Definition the operation system driver of bottom, improved compatibility greatly, intelligent degree is higher.
Described first circuit board is provided with AV, YUV, SCART, S-VIDEO, TV RF interface.
Described first circuit board adopts individual layer pcb board design circuit, and wiring cost has been saved in the wiring of unified integrated backlight module, power amplifier module, power module.
The LCD TV drive system of modularization connecting method of the present invention, be divided into power panel and liquid crystal display driving and two parts of decoding control panel, the low speed input end of analog signal mouth that a part is difficult for being interfered (AV YUV SCART RF etc.), audio frequency power amplifier and backlight drive layout are on power supply circuit board, power supply circuit board and liquid crystal display drive and decode and adopt the dock socket to connect between the control panel, the power circuit plate portion adopts single face PCB design, and liquid crystal display drives and the decoding control panel adopts two-layer or the multi-layer PCB wires design according to demand, integrate by this design, can effectively reduce the PCB area of decoding control panel, power module and the winding displacement of controlling between the decoder module that is connected in the deletion conventional design, thereby system reduces cost, enhance productivity, reduce the traditional design difficulty of bulk circuit board wiring and the design difficulty of decoding control module, improved the reusability of power module.
System of the present invention can support to receive analog-and digital-television broadcasting signal, supports to receive charge programme signal (CA), also supports coupling to connect general-purpose interface (CI); The coherent signal process software programs that carries by cooperation, can support to receive and handle EPG, Teletext, Subtitle, MHEG-5, ATS, DVB-T digital television service signal, and the tuning processing of carrying out PAL/SECAM colour decoding and relevant sound accompaniment standard.
Specify the workflow of system of the present invention below:
After system connects the external communication electricity, power module output 5V standy voltage is given to liquid crystal display driving and decoding deck power supply, described liquid crystal display drives and the decoding control panel enters holding state, after receiving that start-up command is sent in outside (button or remote control), described liquid crystal display drives and decoding control panel out-put supply starting-up signal, power module receives that opening all power channel behind the power supply starting-up signal is given to that described liquid crystal display drives and decoding control panel and backlight module, power amplifier module and the power supply of other peripheral circuits, described liquid crystal display driving and decoding deck are carried out the start operation then, open inner corresponding power control switch, the operation whole TV system enters open state.
Detect present mode whether input signal is arranged, if present mode is the AV pattern, AV port on the power panel has the audio frequency and video input signal, then be transmitted to described liquid crystal display driving and decoding control panel by interface with described liquid crystal display driving and decoding control panel, carry out the vision signal decoding, be sent to display screen and show, sound signal is handled the back through audio and is returned to amplify to power amplifier module by interface and be transferred to loudspeaker;
If present mode is the HDMI pattern, the HDMI interface that detects on described liquid crystal display driving and the decoding control panel has the audio frequency and video input signal, then carry out the vision signal decoding, be sent to display screen and show, sound signal is handled the back through audio and is returned to amplify to power amplifier module by interface and be transferred to loudspeaker.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (9)
1. the control method of the LCD TV drive system of modularization connecting method is characterized in that, comprising:
The LCD TV drive system comprises backlight module integrated, the first circuit board of power amplifier module, power module, and the liquid crystal display that is electrically connected with described first circuit board drives and the decoding control panel; Behind the described LCD TV drive system external power supply, liquid crystal display drives and the decoding control panel enters holding state, after receiving outside start-up command, described liquid crystal display drives and decoding control panel out-put supply starting-up signal, after described power module is received the power supply starting-up signal, give whole LCD TV drive system power supply, operational system enters open state;
Detect present mode whether input signal is arranged, if present mode is the AV pattern, the AV port has the audio frequency and video input signal, then the interface by first circuit board and liquid crystal display driving and decoding control panel is transmitted to described liquid crystal display driving and decoding control panel, carry out the vision signal decoding, be sent to display screen and show, sound signal is handled the back through audio and is returned to amplify to described power amplifier module by interface and be transferred to loudspeaker simultaneously; If present mode is the HDMI pattern, the HDMI interface has the audio frequency and video input signal, then carry out vision signal decoding, be sent to display screen and show, decoded audio signal is handled the back through audio and is returned to amplify to described power amplifier module by interface and be transferred to loudspeaker.
2. the LCD TV drive system of a modularization connecting method is characterized in that, comprises backlight module integrated, the first circuit board of power amplifier module, power module, and liquid crystal display drives and the decoding control panel; Described first circuit board drives with liquid crystal display by plug-in type circuit board coupling arrangement and the decoding control panel is connected; Described liquid crystal display driving and decoding control panel are used for the drive controlling of system data transmission control, LCDs and the audio frequency and video input signal are decoded.
3. as the LCD TV drive system of modularization connecting method as described in the claim 2, it is characterized in that, described plug-in type circuit board coupling arrangement comprises an insulating support plug and an insulating support socket that is complementary, wherein said insulating support plug symmetria bilateralis is provided with at least one socket conductive pin, one end of every described plug conducting pin is horizontal to be used to connect described insulating support socket, other end bending is 90 degree, not conducting mutually between every socket conductive pin;
The bottom of described insulating support socket has at least one plug socket conductive pin, not conducting mutually between every plug socket conductive pin, a side of described insulating support socket is provided with at least one row and the corresponding jack that conducts of described socket conductive pin, and the jack of described insulating support socket flexibly connects by plug conducting pin one end of inserting mode and described insulating support plug.
4. as the LCD TV drive system of modularization connecting method as described in the claim 3, it is characterized in that, be welded with the insulating support plug in the described plug-in type circuit board coupling arrangement on the described first circuit board, all inputoutput data line, control line all are connected with the plug conducting pin; Be welded with the insulating support socket in the described plug-in type circuit board coupling arrangement on described liquid crystal display driving and the decoding control panel, all inputoutput data lines, control line all are connected with the socket conductive pin;
Be welded with the insulating support socket in the described plug-in type circuit board coupling arrangement on the perhaps described first circuit board, all inputoutput data line, control line all are connected with the socket conductive pin; Be welded with the insulating support plug in the described plug-in type circuit board coupling arrangement on described liquid crystal display driving and the decoding control panel, all inputoutput data lines, control line all are connected with the plug conducting pin.
5. as the LCD TV drive system of modularization connecting method as described in the claim 2, it is characterized in that described liquid crystal display drives and the decoding control panel is provided with HDMI interface, VGA interface, USB interface.
6. as the LCD TV drive system of modularization connecting method as described in the claim 5, it is characterized in that described liquid crystal display drives and the decoding control panel adopts bilayer or multi-layer PCB board design circuit, unified Definition the operation system driver of bottom.
7. as the LCD TV drive system of modularization connecting method as described in the claim 2, it is characterized in that described first circuit board is provided with AV, YUV, SCART, S-VIDEO, TV RF interface.
8. as the LCD TV drive system of modularization connecting method as described in the claim 7, it is characterized in that described first circuit board adopts individual layer pcb board design circuit, the wiring of unified integrated backlight module, power amplifier module, power module.
9. as the LCD TV drive system of modularization connecting method as described in the claim 2, it is characterized in that the backlight module on the described first circuit board is connected LCDs by power lead with data line, the power amplifier module output terminal is connected with loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189362 CN102231266B (en) | 2011-07-07 | 2011-07-07 | Liquid crystal display television driving system in modular splicing mode and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189362 CN102231266B (en) | 2011-07-07 | 2011-07-07 | Liquid crystal display television driving system in modular splicing mode and control method |
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| CN102231266A true CN102231266A (en) | 2011-11-02 |
| CN102231266B CN102231266B (en) | 2013-06-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752567A (en) * | 2012-07-25 | 2012-10-24 | 广州视源电子科技股份有限公司 | Television driving device |
| CN103472336A (en) * | 2013-09-16 | 2013-12-25 | 广东易事特电源股份有限公司 | Test fixture |
| CN105812936A (en) * | 2014-12-30 | 2016-07-27 | Tcl集团股份有限公司 | Modular television upgrading method and modular television upgrading device |
| CN105872907A (en) * | 2016-05-20 | 2016-08-17 | 河源天裕电子塑胶有限公司 | Power amplifier power panel |
| CN107394486A (en) * | 2017-07-26 | 2017-11-24 | 浙江德广信电子科技股份有限公司 | A kind of display screen signal bindiny mechanism |
-
2011
- 2011-07-07 CN CN 201110189362 patent/CN102231266B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752567A (en) * | 2012-07-25 | 2012-10-24 | 广州视源电子科技股份有限公司 | Television driving device |
| CN102752567B (en) * | 2012-07-25 | 2015-07-15 | 广州视源电子科技股份有限公司 | Television driving device |
| CN103472336A (en) * | 2013-09-16 | 2013-12-25 | 广东易事特电源股份有限公司 | Test fixture |
| CN105812936A (en) * | 2014-12-30 | 2016-07-27 | Tcl集团股份有限公司 | Modular television upgrading method and modular television upgrading device |
| CN105812936B (en) * | 2014-12-30 | 2018-07-27 | Tcl集团股份有限公司 | Modular electrical regards upgrade method and modularization television-set upgrading apparatus |
| CN105872907A (en) * | 2016-05-20 | 2016-08-17 | 河源天裕电子塑胶有限公司 | Power amplifier power panel |
| CN107394486A (en) * | 2017-07-26 | 2017-11-24 | 浙江德广信电子科技股份有限公司 | A kind of display screen signal bindiny mechanism |
| CN107394486B (en) * | 2017-07-26 | 2024-01-26 | 浙江德广信电子科技股份有限公司 | Display screen signal connection mechanism |
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| Publication number | Publication date |
|---|---|
| CN102231266B (en) | 2013-06-05 |
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Address after: Xue Cheng Ke Zhu Road Guangzhou City, Guangdong province 510663 science No. 192 Applicant after: Guangzhou Shiyuan Electronic Technology Company Limited Address before: Xue Cheng Ke Zhu Road Guangzhou City, Guangdong province 510663 science No. 192 Applicant before: Guangzhou Shiyuan Electronic Technology Co.,Ltd. |
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