CN102231266B - 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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- CN102231266B CN102231266B CN 201110189362 CN201110189362A CN102231266B CN 102231266 B CN102231266 B CN 102231266B CN 201110189362 CN201110189362 CN 201110189362 CN 201110189362 A CN201110189362 A CN 201110189362A CN 102231266 B CN102231266 B CN 102231266B
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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 same individual layer PCB, development along with TV tech, TV can become a platform, a multimedia terminal, function from strength to strength, decoding drives chip and has basically all adopted BGA encapsulation and high speed DDR2 or DDR3, uses individual layer PCB substantially can not complete the wires design of the PCB that drives decoded portion.When being arranged on same circuit board such as power amplifier module and audio frequency and video processing module, can produce electromagnetic interference (EMI), affect the quality of signal.
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 that liquid crystal electricity modules integrates the drive scheme that carries out connecting method, adopt the modularization Integrated design, avoid electromagnetic interference (EMI), can improve reusing, the versatility of general module, reduce the system difficulty, also can reduce costs, improving production efficiency and product quality.
The invention provides the control method of the LCD TV drive system of Modularized splice mode, 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 to described first circuit board drive and the decoding control panel, specifically can carry out by plug-in type circuit board connecting device the connection of above two plates; After 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, 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, return to described power amplifier module by interface after sound signal is processed through audio simultaneously and amplify and be transferred to loudspeaker; If present mode is the HDMI pattern, the HDMI interface has the audio frequency and video input signal, carry out vision signal decoding, be sent to display screen and show, return to described power amplifier module by interface after decoded sound signal is processed through audio and amplify and be transferred to loudspeaker.
The present invention also provides a kind of LCD TV drive system of Modularized splice mode, 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 connecting device and the decoding control panel is connected; Described liquid crystal display drives and the decoding control panel is controlled and the audio frequency and video input signal is decoded for the driving of system data transmission control, LCDs.
Further, described plug-in type circuit board connecting device 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 be used to connecting 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 is flexibly connected by plug conducting pin one end of inserting mode and described insulating support plug.
Further, be provided with HDMI interface, VGA interface, USB interface on described liquid crystal display driving and decoding control panel.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, be provided with AV interface, YUV interface, SCART interface, S-VIDEO interface, TV RF interface on described first circuit board.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 described first circuit board is by power lead and data line connecting fluid crystal display screen, and the power amplifier module output terminal is connected with loudspeaker.
The present invention has the following advantages:
1, system of the present invention adopts the mode of module splicing that whole television 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.Improve reusing, the compatibility of general module, also can reduce production cost, improving 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 connecting device, 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 fast and easy is changed circuit board and realized that system upgrades fast.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the module diagram of the LCD TV drive system of Modularized splice mode of the present invention.
Fig. 2 is the structural representation of plug-in type circuit board connecting device of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, the embodiment of the present invention provides a kind of LCD TV drive system of Modularized splice mode, 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 connecting device and the decoding control panel is connected; Described liquid crystal display drives and the decoding control panel is controlled and the audio frequency and video input signal is decoded for the driving of system data transmission control, LCDs.
Backlight module on described first circuit board is by power lead and data line connecting fluid crystal display screen, and the power amplifier module output terminal is connected with loudspeaker.
As shown in Figure 2, described plug-in type circuit board connecting device 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 be used to connecting 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 is flexibly connected 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 described plug-in type circuit board connecting device on 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 described plug-in type circuit board connecting device on described liquid crystal display driving and 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 described plug-in type circuit board connecting device on 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 described plug-in type circuit board connecting device on described liquid crystal display driving and decoding control panel, inputoutput data line, control line all are connected with the plug conducting pin.
Be provided with HDMI interface, VGA interface, USB interface on described liquid crystal display driving and decoding control panel.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, greatly improved compatibility, intelligent degree is higher.
Be provided with AV, YUV, SCART, S-VIDEO, TV RF interface on described first circuit board.
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 Modularized splice mode 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 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, by this design integration, can effectively reduce the PCB area of decoding control panel, power module and the winding displacement that is connected of controlling between decoder module in the deletion conventional design, thereby system reduces costs, enhance productivity, the traditional design difficulty of bulk circuit board wiring and the design difficulty of decoding control module have been reduced, improve 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 connection universal interface (CI); The coherent signal process software programs that carries by cooperation, can support reception ﹠ disposal 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.
The below illustrates the workflow of system of the present invention:
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 after 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, then described liquid crystal display driving and decoding deck carry out the start operation, open inner corresponding power control switch, move whole television system, enter open state.
Detect present mode whether input signal is arranged, if present mode is the AV pattern, AV port on power panel has the audio frequency and video input signal, be transmitted to described liquid crystal display driving and decoding control panel by the interface with described liquid crystal display driving and decoding control panel, carry out the vision signal decoding, be sent to display screen and show, return to power amplifier module by interface after sound signal is processed through audio and amplify and be transferred to loudspeaker;
If present mode is the HDMI pattern, the HDMI interface that detects on described liquid crystal display driving and decoding control panel has the audio frequency and video input signal, carry out the vision signal decoding, be sent to display screen and show, return to power amplifier module by interface after sound signal is processed through audio and amplify and be transferred to loudspeaker.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (7)
1. the control method of the LCD TV drive system of Modularized splice mode, 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 to described first circuit board drives and the decoding control panel; After 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, 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, return to described power amplifier module by interface after sound signal is processed through audio simultaneously and amplify and be transferred to loudspeaker; If present mode is the HDMI pattern, the HDMI interface has the audio frequency and video input signal, carry out vision signal decoding, be sent to display screen and show, return to described power amplifier module by interface after decoded sound signal is processed through audio and amplify and be transferred to loudspeaker.
2. the LCD TV drive system of a Modularized splice mode, 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 connecting device and the decoding control panel is connected; Described liquid crystal display drives and the decoding control panel is controlled and the audio frequency and video input signal is decoded for the driving of system data transmission control, LCDs;
Be provided with HDMI interface, VGA interface, USB interface on described liquid crystal display driving and decoding control panel;
Be provided with AV, YUV, SCART, S-VIDEO, TV RF interface on described first circuit board;
After 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, 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, return to described power amplifier module by interface after sound signal is processed through audio simultaneously and amplify and be transferred to loudspeaker; If present mode is the HDMI pattern, the HDMI interface has the audio frequency and video input signal, carry out vision signal decoding, be sent to display screen and show, return to described power amplifier module by interface after decoded sound signal is processed through audio and amplify and be transferred to loudspeaker.
3. the LCD TV drive system of Modularized splice mode as claimed in claim 2, it is characterized in that, described plug-in type circuit board connecting device 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 be used to connecting 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 is flexibly connected by plug conducting pin one end of inserting mode and described insulating support plug.
4. the LCD TV drive system of Modularized splice mode as claimed in claim 3, it is characterized in that, be welded with the insulating support plug in described plug-in type circuit board connecting device on 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 described plug-in type circuit board connecting device on described liquid crystal display driving and decoding control panel, all inputoutput data lines, control line all are connected with the socket conductive pin;
Perhaps be welded with the insulating support socket in described plug-in type circuit board connecting device on 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 described plug-in type circuit board connecting device on described liquid crystal display driving and decoding control panel, all inputoutput data lines, control line all are connected with the plug conducting pin.
5. the LCD TV drive system of Modularized splice mode as claimed in claim 4, 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.
6. the LCD TV drive system of Modularized splice mode as claimed in claim 2, 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.
7. the LCD TV drive system of Modularized splice mode as claimed in claim 2, is characterized in that, the backlight module on described first circuit board is by power lead and data line connecting fluid crystal display screen, and 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 | LCD TV (Liquid Crystal Display Television) driving system in modularized splicing mode and controlling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189362 CN102231266B (en) | 2011-07-07 | 2011-07-07 | LCD TV (Liquid Crystal Display Television) driving system in modularized splicing mode and controlling method thereof |
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| CN102231266A CN102231266A (en) | 2011-11-02 |
| CN102231266B true CN102231266B (en) | 2013-06-05 |
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| CN102752567B (en) * | 2012-07-25 | 2015-07-15 | 广州视源电子科技股份有限公司 | Television drive device |
| CN103472336B (en) * | 2013-09-16 | 2015-12-09 | 广东易事特电源股份有限公司 | A kind of measurement jig |
| 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 |
| 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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Address after: Xue Cheng Ke Zhu Road Guangzhou City, Guangdong province 510663 science No. 192 Applicant after: Guangzhou CVT Electronics Technology Co., Ltd. Address before: Xue Cheng Ke Zhu Road Guangzhou City, Guangdong province 510663 science No. 192 Applicant before: Guangzhou Shiyuan Electronics Technology Co., Ltd. |
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