CN207097428U

CN207097428U - A kind of liquid crystal SECO plate of multi signal input

Info

Publication number: CN207097428U
Application number: CN201720712740.7U
Authority: CN
Inventors: 张汉洪; 梅人中
Original assignee: Czech (shenzhen) Technology Co Ltd
Current assignee: Czech (shenzhen) Technology Co Ltd
Priority date: 2017-06-19
Filing date: 2017-06-19
Publication date: 2018-03-13
Anticipated expiration: 2027-06-19

Abstract

The utility model discloses a kind of liquid crystal SECO plate of multi signal input, it is arranged between TV SOC plates and LED PANEL, including a pcb board, the VBO input interfaces for being connected with TV SOC plates and LVDS signal input interfaces, the mini LVDS output interfaces being connected for the source plates with LED PANEL are provided with pcb board, a power module, one is used for the master chip of signal converting, one is used for drive module that voltage needed for liquid crystal TV set gray value gamma is set.

Description

A kind of liquid crystal SECO plate of multi signal input

Technical field

Liquid crystal TV set field is the utility model is related to, more particularly to a kind of liquid crystal SECO plate of multi signal input.

Background technology

Liquid crystal TV set is liked that liquid crystal SECO plate can be simultaneously with the picture of its high quality by consumers in general Picture signal is provided and drive signal ensures the definition of LCD picture, is widely applied in liquid crystal TV set.But It is existing liquid crystal SECO plate, only supports single-signal input, the connection with the TV SOC plates of front end has certain limitation Property, for different TV SOC plates, it is desirable to provide the SECO plate of unlike signal input, cost are higher, and what is used is flexible Property is relatively low.

Utility model content

Main purpose of the present utility model is to propose a kind of liquid crystal SECO plate of multi signal input, it is intended to is adapted to different The LCD TV of model, expand the use range of liquid crystal SECO plate, reduce production cost.

To achieve the above object, the utility model proposes multi signal input liquid crystal SECO plate, be arranged on TV Between SOC plates and LED PANEL, including a pcb board, the VBO for being connected with the TV SOC plates is provided with the pcb board Input interface and LVDS signal input interfaces, the mini LVDS output interfaces being connected for the source plates with LED PANEL, One power module, one are used for the NT71934 master chips of signal converting, one for setting needed for liquid crystal TV set gray value gamma The drive module of voltage.The VBO input interfaces are connected with the input of the NT71934 master chips, and the LVDS signals are defeated Incoming interface is connected by a signal converting chip THCV215 chips with the input of the NT71934 master chips, LVDS and VBO inputs may be selected.The output end of NT71934 master chips connects the mini LVDS output interfaces.The power module it is defeated Enter end and connect the VBO input interfaces and LVDS signal input interfaces, the output end of the power module connects the NT71934 The input of master chip and the mini LVDS output interfaces.It is defeated that the output end of the drive module connects the mini LVDS Outgoing interface.

Preferably, the power module includes a G2510 chips, a FP6381A chips, a MP8761 chips, 1 Chip.

Preferably, the drive module includes an AAT1314 chips, an AAT7207 chips.

Preferably, in addition to the NT71934 master chips one be connected is used for the FLASH chip of storage program, a use In the crystal oscillator that clock effect is provided for the NT71934 master chips and the reset chip of a guarantee system normal operation.

Preferably, the DDR3 memories of a storage data are additionally arranged, described in the output end connection of the DDR3 memories The input of NT71934 master chips.

Preferably, connected between the VBO input interfaces and the NT71934 master chips by I2C buses, it is described Connected between NT71934 master chips and the mini LVDS output interfaces by spi bus.

Compared with prior art, the beneficial effects of the utility model are：The use range of liquid crystal SECO plate is expanded, VBO signals and the input of LVDS signals are supported, the TV motherboard of unlike signal is adapted to, reduces production cost.

Brief description of the drawings

Fig. 1 is the module map of the liquid crystal SECO plate of the utility model multi signal input；

Fig. 2 is the utility model THCV215 chip circuit schematic diagrams；

Fig. 3 is the utility model G2510 chip circuit schematic diagrams；

Fig. 4 is the utility model FP6381A chip circuit schematic diagrams；

Fig. 5 is the utility model MP8761 chip circuit schematic diagrams；

Fig. 6 is the chip circuit schematic diagram of the utility model 1117；

Fig. 7 is the utility model AAT1314 chip circuit schematic diagrams；

Fig. 8 is the utility model AAT7207 chip circuit schematic diagrams；

Fig. 9 is the utility model FLASH chip circuit theory diagrams；

Figure 10 is the utility model crystal-oscillator circuit schematic diagram；

Figure 11 is the utility model reset chip circuit theory diagrams；

Figure 12 is the utility model DDR3 memory circuitry schematic diagrams；

Embodiment

A kind of liquid crystal SECO plate for multi signal input that the present embodiment proposes, the liquid crystal sequential control of multi signal input Making sheet is connected between TV SOC plates (not shown)s and LED PANEL (not shown)s, wherein, TV SOC plates are TV System board, LED PANEL are liquid crystal display.

As shown in figure 1, the multi signal input liquid crystal SECO plate include a pcb board, be provided with pcb board be used for The VBO input interfaces 2 and LVDS signal input interfaces 3 of the connection of TV SOC plates, it is connected for the source plates with LED PANEL Mini LVDS output interfaces, a power module, the NT71934 master chips 1, one for being used for signal converting are used to set liquid crystal electric Depending on the drive module of voltage needed for machine gray value gamma.VBO input interfaces 2 are connected with the input of NT71934 master chips 1, LVDS signal input interfaces 3 are connected by a signal converting chip THCV215 chips 7 with the input of NT71934 master chips 1, LVDS and VBO inputs may be selected.The output end connection mini LVDS output interfaces 4 of NT71934 master chips 1.Power module it is defeated Enter end connection VBO input interfaces 2 and LVDS signal input interfaces 3, the output end connection NT71934 master chips 1 of power module Input and mini LVDS output interfaces 4.The output end connection mini LVDS output interfaces 4 of drive module.

It should be noted that NT71934 master chips 1, which are a of the newest production of Novatek companies, carries MEMC functions 120Hz TCON single-chips.It supports the input of UHD＆FHD@24/25/30/48/50/60/Hz 2D/3D signals, UHD@60/ 120Hz 2D/3D signal outputs.Support OSD (on-screen display screen menu types regulative mode) defencive function.Support 3D functions, synchronizing signal is exported, can be applied to 3D shutter schemes.Support VBO signals and the input of LVDS signals, maximum input data Amount is exported as 6pair@8port miniLVDS signals up to 3.75Gbps.

VBO signals are transferred to NT71934 master chips 1 by VBO input interfaces 2, meanwhile, LVDS signal input interfaces 3 pass through LVDS signals are converted into VBO signals and are transferred to NT71934 master chips 1 by signal converting chip THCV215 chips 7, and Fig. 2 is The circuit theory diagrams of THCV215 chips 7.NT71934 master chips 1 export mini LVDS to mini by signal conversion processes LVDS output interface 4, meanwhile, also export the enable signal 3DEN of 3DEN patterns, reference signal XDP2, CTG that liquid crystal display needs Control signal.

Further, power module include a G2510 chips 501, a FP6381A chips 502, a MP8761 chips 503, One 1117 chips 504.

12V electricity can be converted to 3.3V, 1.5V and 17.22V by G2510 chips 501, be powered for NT71934 master chips 1, At the same time it can also provide the reference signal required for liquid crystal deflection for mini LVDS output interfaces 4, supplied for AAT1314 chips Electricity.FP6381A chips 502 can be converted to the 3.3V electricity that G2510 chips 501 export 2.5V to be made for NT71934 master chips 1 With.12V electricity can be converted to 0.9V and be used for NT71934 master chips 1 by MP8761 chips 503.1117 chips 504 can incite somebody to action The 3.3V electricity that G2510 chips 501 export is converted to 1.8V and used for THCV215 chips 7.

Wherein, Fig. 3 is the circuit theory diagrams of G2510 chips 501；Fig. 4 is the circuit theory diagrams of FP6381A chips 502；Fig. 5 is The circuit theory diagrams of MP8761 chips 503；Fig. 6 is the circuit theory diagrams of 1117 chip 504.

Further, drive module includes an AAT1314 chips 601, an AAT7207 chips 602.AAT1314 chips 601st, AAT7207 chips 602 can provide the signal for setting voltage needed for liquid crystal TV set gray value gamma respectively, change figure As the brightness value of semi-tone GTG, increase the intermediate level of image, improve image definition and the quality of picture.

Wherein, Fig. 7 is the circuit theory diagrams of AAT1314 chips 601, and Fig. 8 is the circuit theory diagrams of AAT7207 chips 602.

Further, in addition to NT71934 master chips 1 FLASH chip 8, one that one be connected is used for storage program is used Ensure the reset chip 10 of system normal operation in the crystal oscillator 9 and one that clock effect is provided for NT71934 master chips 1. It ensure that the stability of system operation and the effect of image.The reset chip 10 being connected with NT71934 master chips 1 can be in system Program is detected before operation, ensures the normal operation of program.

Wherein, Fig. 9 is the circuit theory diagrams of FLASH chip 8, and Figure 10 is the circuit theory diagrams of crystal oscillator 9, and Figure 11 is reset The circuit theory diagrams of chip 10.

Further, the DDR3 memories 11 of a storage data, the output end connection of DDR3 memories 11 are additionally arranged The input of NT71934 master chips 1.The storage area of liquid crystal SECO plate is increased, the data in system can be carried out Preserve.Figure 12 is the circuit theory diagrams of DDR3 memories 11.

Further, connected between VBO input interfaces 2 and NT71934 master chips 1 by I2C buses, NT71934 main cores Connected between piece 1 and mini LVDS output interfaces 4 by spi bus.I2C buses and spi bus possess the communication of oneself respectively Agreement, it is ensured that the stability of signal transmission between module, meanwhile, structure and wiring are simple, save cost.

Preferred embodiment of the present utility model is these are only, not thereby limits the scope of the claims of the present utility model, it is every The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in Other related technical areas, similarly it is included in scope of patent protection of the present utility model.

Claims

1. a kind of liquid crystal SECO plate of multi signal input, is arranged between TV SOC plates and LED PANEL, its feature exists In being provided with VBO input interfaces and LVDS signals for being connected with the TV SOC plates on, an including pcb board, the pcb board Input interface, the mini LVDS output interfaces being connected for the source plates with LED PANEL, a power module, one are used to believe The master chip of number switching, one are used to set the drive module of voltage needed for liquid crystal TV set gray value gamma；The VBO inputs Interface is connected with the input of the master chip, and the LVDS signal input interfaces pass through a signal converting chip THCV215 cores Piece is connected with the input of the master chip, and LVDS and VBO inputs may be selected；The output end of master chip connects the mini LVDS output interface；The input of the power module connects the VBO input interfaces and LVDS signal input interfaces, the electricity The output end of source module connects the input of the master chip and the mini LVDS output interfaces；The drive module it is defeated Go out end and connect the mini LVDS output interfaces.

2. the liquid crystal SECO plate of multi signal input as claimed in claim 1, it is characterised in that the power module includes 3.3V electricity is converted to the electric chips of 1.8V by one G2510 chips, a FP6381A chips, a MP8761 chips, one.

3. the liquid crystal SECO plate of multi signal input as claimed in claim 1, it is characterised in that the drive module includes One provides chip, the AAT7207 chips for setting voltage signal needed for gray value.

4. as described in claims 1 to 3 is any multi signal input liquid crystal SECO plate, it is characterised in that also include with The one of the master chip connection is used for the crystalline substance of the FLASH chip of storage program, one for providing clock effect for the master chip The reset chip of oscillation body device and a guarantee system normal operation.

5. the liquid crystal SECO plate of multi signal input as claimed in claim 4, it is characterised in that be additionally arranged a storage data DDR3 memories, the output ends of the DDR3 memories connects the input of the master chip.

6. the liquid crystal SECO plate of multi signal input as claimed in claim 1, it is characterised in that the VBO input interfaces It is connected between the master chip by I2C buses, passes through SPI between the master chip and the mini LVDS output interfaces Bus connects.