CN202332232U - Liquid crystal drive board, LCD driving device and LCD - Google Patents
Liquid crystal drive board, LCD driving device and LCD Download PDFInfo
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- CN202332232U CN202332232U CN2011204975106U CN201120497510U CN202332232U CN 202332232 U CN202332232 U CN 202332232U CN 2011204975106 U CN2011204975106 U CN 2011204975106U CN 201120497510 U CN201120497510 U CN 201120497510U CN 202332232 U CN202332232 U CN 202332232U
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- liquid crystal
- voltage differential
- low voltage
- crystal display
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Abstract
The utility model relates to the technical field of liquid crystal panel manufacturing, in particular to a liquid crystal drive board, an LCD driving device and an LCD, and solves the problem that wireless signal transmission between the LCD driving device and the liquid crystal drive board in a liquid crystal device can not be carried out. The liquid crystal drive board comprises a main control chip, a low-voltage differential signal converter and a UWB (Ultra Wide Band) wireless signal transmitter which are in sequential connection, wherein the main control chip is used for converting a received video signal into a low-voltage differential signal and sending the low-voltage differential signal to the low-voltage differential signal converter; the low-voltage differential signal converter converts the received low-voltage differential signal into a parallel signal and sends the parallel signal to the UWB wireless signal transmitter; and the UWB wireless signal transmitter converts the received parallel signal into a wireless signal and sends the wireless signal out. Therefore, by adopting the structure, wireless signal transmission between the LCD driving device and the liquid crystal drive board in the liquid crystal device can be achieved.
Description
Technical field
The utility model relates to liquid crystal panel manufacturing technology field, relates in particular to a kind of liquid crystal drive plate, liquid crystal display drive unit and liquid crystal display device.
Background technology
As shown in Figure 1, and liquid crystal display device in the prior art (Liquid Crystal Display, LCD) inside mainly comprises liquid crystal drive plate 11 and liquid crystal panel 12, the liquid crystal display drive unit can be arranged on the liquid crystal panel 12 usually; The liquid crystal display drive unit comprises LVDS signal receiver 121 and time schedule controller 122; Liquid crystal drive plate 11 also is that liquid crystal panel 12 links to each other through cable and liquid crystal display drive unit; Comprise main control chip 111 and LVDS sender unit 112 in the liquid crystal drive plate 11; Wherein, main control chip 111 is used for converting the vision signal that receives into the LVDS signal, and the LVDS signal after will changing sends to LVDS sender unit 112; LVDS signal after LVDS sender unit 112 will be changed sends to liquid crystal panel 12 through cable; Comprise LVDS signal receiver 121 and time schedule controller 122 in the liquid crystal display drive unit of liquid crystal panel 12; Wherein, the LVDS signal receiver 121 LVDS signal from liquid crystal drive plate 11 that will receive sends to time schedule controller 122; Time schedule controller 122 is used to drive the LCD circuit, thereby at the LCDs display image.
The inventor finds, in the prior art, when the transmission LVDS signal between liquid crystal drive plate and the liquid crystal panel, uses the cable of transmission signals, and will exist the interface that is used for connection cable this moment, so the liquid crystal drive plate can't separate with liquid crystal panel; Accordingly, will increase the thickness of display device, increase the complexity of liquid crystal panel Interface design simultaneously.
The utility model content
The utility model embodiment provides a kind of liquid crystal drive plate, liquid crystal display drive unit, is used for solving the problem that between liquid crystal device liquid crystal display drive unit and liquid crystal drive plate, can't carry out transmission of wireless signals.
A kind of liquid crystal drive plate, comprising: the main control chip that is linked in sequence, Low Voltage Differential Signal converter and ultra wide band radio signal transmitter; Wherein
Said main control chip is used for converting the vision signal that receives into Low Voltage Differential Signal, and sends to said Low Voltage Differential Signal converter;
The said Low Voltage Differential Signal that said Low Voltage Differential Signal converter will receive converts parallel signal into, and said parallel signal is issued said ultra wide band radio signal transmitter;
The said parallel signal that said ultra wide band radio signal transmitter will receive converts wireless signal into and sends.
A kind of liquid crystal display drive unit, comprising: ultra wide band radio signal receiver, Low Voltage Differential Signal converter and the time schedule controller of order serial connection; Wherein
Said ultra wide band radio signal receiver receives the wireless signal that the liquid crystal drive plate is sent, and converts parallel signal into, and the parallel signal after the conversion is sent to said Low Voltage Differential Signal converter;
Said Low Voltage Differential Signal converter converts the parallel signal that receives into Low Voltage Differential Signal, and said Low Voltage Differential Signal is sent to said time schedule controller; Said time schedule controller is used for driving the liquid crystal panel display image according to said Low Voltage Differential Signal.
A kind of liquid crystal display device comprises liquid crystal panel, and this liquid crystal display device also comprises above-mentioned liquid crystal display drive unit.
It is thus clear that the structure that adopts the utility model embodiment to provide can convert this Low Voltage Differential Signal wireless signal into and send to the liquid crystal display drive unit in the liquid crystal drive plate after convert vision signal into Low Voltage Differential Signal again; After the liquid crystal display drive unit receives this wireless signal, be converted into Low Voltage Differential Signal, and then this Low Voltage Differential Signal is sent to said time schedule controller; It is thus clear that, realized the transmission of wireless signal between liquid crystal display drive unit that the utility model provides and the liquid crystal drive plate, therefore saved cable and the interface between liquid crystal display drive unit and the liquid crystal drive plate; At this moment; Can the liquid crystal drive plate be placed on liquid crystal display device, therefore, the structure that the utility model embodiment provides; The transmission of wireless signals between the liquid crystal display drive unit and liquid crystal drive plate in the liquid crystal device can be realized, the thickness of liquid crystal display device can be reduced simultaneously greatly.
Description of drawings
Fig. 1 is a liquid crystal display device inner structure synoptic diagram in the prior art;
The liquid crystal drive intralamellar part structural representation that Fig. 2 provides for the utility model embodiment one;
The ultra wide band radio signal transmitter inner structure synoptic diagram that Fig. 3 provides for the utility model embodiment one;
The liquid crystal display drive unit inner structure synoptic diagram that Fig. 4 provides for the utility model embodiment two;
The ultra wide band radio signal receiver inner structure synoptic diagram that Fig. 5 provides for the utility model embodiment two.
Embodiment
The structure that the utility model embodiment provides can convert this Low Voltage Differential Signal wireless signal into and send to the liquid crystal display drive unit in the liquid crystal drive plate after convert vision signal into Low Voltage Differential Signal again; After the liquid crystal display drive unit receives this wireless signal, be converted into Low Voltage Differential Signal, and then this Low Voltage Differential Signal is sent to said time schedule controller; It is thus clear that, realized the transmission of wireless signal between liquid crystal display drive unit that the utility model provides and the liquid crystal drive plate, therefore saved cable and the interface between liquid crystal display drive unit and the liquid crystal drive plate; At this moment; Can the liquid crystal drive plate be placed on liquid crystal display device, therefore, the structure that the utility model embodiment provides; Can realize the transmission of wireless signals between the liquid crystal display drive unit and liquid crystal drive plate in the liquid crystal device, also reduce the thickness of liquid crystal display device simultaneously greatly.Below with the specific embodiment introduction;
Embodiment one:
As shown in Figure 2, the utility model embodiment one provides a kind of liquid crystal drive plate, comprising the main control chip that is linked in sequence 21, LVDS signal converter 22 and ultra broadband (Ultra-Wideband, UWB) radio signal senders 23; Main control chip 21 is used for converting the vision signal that receives into Low Voltage Differential Signal, i.e. LVDS signal, and the LVDS signal of this moment sends to LVDS converter 22 with serial mode; The said LVDS signal that LVDS converter 22 will receive is changed according to existing mode; LVDS signal after the conversion will be issued said UWB radio signal senders 23 with parallel mode; Introduce for ease; LVDS signal after here will changing is called parallel signal, then said parallel signal is issued said UWB radio signal senders 23;
The said parallel signal that UWB radio signal senders 23 will receive converts wireless signal into and sends to the liquid crystal display drive unit.
As shown in Figure 3, UWB radio signal senders 23 comprises: FPGA31 that is linked in sequence and radio signal senders 33;
Parallel signal after LVDS signal converter 22 will be changed sends to FPGA31;
(Field-Programmable Gate Array FPGA) 31 converts parallel signal and the corresponding USB of this parallel signal (Universal Serial BUS, USB) signal into FPGA; And this usb signal sent to radio signal senders 33;
Concrete, can receive usb signal accurately in order to guarantee radio signal senders, this liquid crystal drive plate also comprises frequency controller; This frequency controller is connected with said FPGA31 and is used to control said FPGA31 sends frequency from usb signal to said radio signal senders;
Preferable; Since 33 of radio signal senders provide to USB (Universal Serial BUS, USB) the Physical layer support of agreement, and if FPGA31 directly links to each other with radio signal senders 33; Be FPGA31 directly and the data of the Physical layer of usb protocol carry out alternately; And this reciprocal process is very complicated, for fear of this complex operations, can between FPGA31 that connects and radio signal senders 33, connect usb signal converter 32; This usb signal converter 32 is used for converting parallel signal into usb signal, and said usb signal is sent to radio signal senders 33, can avoid FPGA31 directly and the data of the Physical layer of usb protocol carry out alternately.
Embodiment two:
As shown in Figure 4, the utility model embodiment provides a kind of liquid crystal display drive unit, comprising ultra broadband UWB wireless signal receiver 41, LVDS converter 42 and the time schedule controller 43 of order serial connection;
Said UWB wireless signal receiver 41 receives the wireless signal that the liquid crystal drive plate is sent, and converts parallel signal into, and this parallel signal is the LVDS signal that sends with parallel mode, and the parallel signal after the conversion is sent to said LVDS converter 42;
As shown in Figure 5, UWB wireless signal receiver 41 comprises: the wireless signal receiver 51 and the FPGA31 that are linked in sequence;
FPGA51 converts the usb signal that receives into parallel signal, and this parallel signal is the LVDS signal that sends with parallel mode, and sends to said LVDS converter;
Preferable; Because 51 of wireless signal receivers provide the Physical layer support to usb protocol; And if FPGA31 directly links to each other with wireless signal receiver 51, promptly FPGA31 directly carries out alternately with the data of the Physical layer of usb protocol, and this reciprocal process is the ten minutes complicacy; For fear of this complex operations, can between FPGA31 that connects and wireless signal receiver 51, connect usb signal converter 52; This usb signal converter 52 is used for usb signal is sent to wireless signal receiver 51, can avoid FPGA31 directly and the data of the Physical layer of usb protocol carry out alternately.
Embodiment three:
The utility model embodiment provides a kind of liquid crystal display device; Comprise LCDs, this liquid crystal display device also comprises liquid crystal display drive unit and the liquid crystal drive plate among the embodiment two among the embodiment one; This liquid crystal display device can comprise display (MNT), liquid crystal panel, TV (TV), mobile phone, electronic bill-board class application display devices such as (PID/DID).
Preferable, in order to reduce the thickness of this liquid crystal display device as far as possible, this liquid crystal display device also can only comprise the liquid crystal display drive unit among the embodiment one, and the liquid crystal drive plate that is about among the embodiment two is placed on this liquid crystal display device.
Concrete, the main control chip among above-mentioned all embodiment, LVDS converter and FPGA are that prior art is disclosed.
Preferable, owing to can be corresponding wireless signal finally, and send in the foregoing description the LVDS conversion of signals, therefore, use UWB wireless signal transmission/receiver can be realized the wireless transmission and the reception of signal in this device.
In sum, beneficial effect:
The structure that adopts the utility model embodiment to provide; Can be in the liquid crystal drive plate after converting vision signal into the LVDS signal; Be the usb signal corresponding with this LVDS conversion of signals again, convert this usb signal into ultra broadband (UWB) signal through the UWB wireless transceiver then and send to the liquid crystal display drive unit with wireless mode with it; After the liquid crystal display drive unit receives this ultra broadband (UWB) signal, be converted into usb signal, be converted into the LVDS signal corresponding again with it, send it to time schedule controller then and drive liquid crystal display displays images; It is thus clear that, realized the transmission of wireless signal between liquid crystal display drive unit that the utility model provides and the liquid crystal drive plate, therefore saved cable and the interface between liquid crystal display drive unit and the liquid crystal drive plate; At this moment, can the liquid crystal drive plate be placed on display device, therefore, the structure that the utility model embodiment provides can realize the transmission of wireless signals between the liquid crystal display drive unit and liquid crystal drive plate in the liquid crystal device, and reduces the thickness of display device greatly;
When the liquid crystal display drive unit separates with the liquid crystal drive plate, when soon the liquid crystal drive plate is placed on display device, can realize the corresponding a plurality of LCDs of a liquid crystal drive plate;
Because the chip in the present UWB wireless signal transmitter is integrated FDDI sublayer protocol (Media Access Control; MAC), Physical layer (Physical Layer; PHY) and radio frequency (Radio Frequency RF), and provides the support of USB interface.The high integration of the chip in the UWB wireless signal transmitter has been simplified the design of the printed circuit board (PCB) of liquid crystal display drive unit greatly;
Preferable, what this device was realized is wireless transmission of signal, the basic advantage of this device be the liquid crystal display drive unit with the liquid crystal drive plate between be connected become simply; When this liquid crystal display drive unit places display, and the liquid crystal drive plate can be used for PC inside, at this moment, can improve the mobility of equipment, has simplified complicated wiring environment, and for example, building show the field.Simultaneously, behind employing the design, can simplify the physical interface design of LVDS;
At present; The signal that liquid crystal panel transmitted in most of liquid crystal display devices all is the LVDS signal; Therefore; When the design's the transmission signals that is directed against is the LVDS signal,, enlarge the actual market usable range of this device so support wireless transmission LVDS signal can this device be used in most of liquid crystal display device as long as realize the liquid crystal display drive unit;
GPU on the present video card is very powerful; Video card on most mainstream configuration main frames can be supported multiple display interface (VGA/DVI/displayport/usb3.0/HDMI......) fully; Therefore, the signal that transmits in the main frame is very complicated, and its host-host protocol of distinct interface is all different.When transmission LVDS signal, because that the LVDS signal is divided into is multiple, and every kind of LVDS signal all has different requirement to transmission range; For the liquid crystal display device of different size, LVDS connecter type wherein is also inequality, considers cost; And the complexity of power, so can not produce the host side that the LVDS interface that can adapt to every kind of Different L VDS signal directly is provided at present, and this device can carry out wireless transmission to the LVDS signal; Therefore; The LVDS interface that does not need entity, visible, this device can be applicable in the display device of any transmission LVDS signal.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (8)
1. a liquid crystal drive plate is characterized in that, comprising: the main control chip that is linked in sequence, Low Voltage Differential Signal converter and ultra wide band radio signal transmitter; Wherein
Said main control chip is used for converting the vision signal that receives into Low Voltage Differential Signal, and sends to said Low Voltage Differential Signal converter;
The said Low Voltage Differential Signal that said Low Voltage Differential Signal converter will receive converts parallel signal into, and said parallel signal is issued said ultra wide band radio signal transmitter;
The said parallel signal that said ultra wide band radio signal transmitter will receive converts ultra-broadband signal into and sends.
2. liquid crystal drive plate as claimed in claim 1 is characterized in that, said ultra wide band radio signal transmitter comprises: field programmable gate array that is linked in sequence and radio signal senders; Wherein
Said field programmable gate array receives the parallel signal that said Low Voltage Differential Signal converter is sent; Convert said parallel signal into universal serial bus signal corresponding with it; Said universal serial bus signal is sent to said radio signal senders;
Radio signal senders is converted into ultra-broadband signal with said universal serial bus signal, and said ultra-broadband signal is sent.
3. liquid crystal drive plate as claimed in claim 2 is characterized in that, said ultra wide band radio signal transmitter also comprises frequency controller;
Said frequency controller is connected with said field programmable gate array; Be used to control said field programmable gate array sends frequency from universal serial bus signal to said radio signal senders.
4. like claim 2 or 3 described liquid crystal drive plates, it is characterized in that said radio signal senders is the ultra broadband chip.
5. a liquid crystal display drive unit is characterized in that, comprising: ultra wide band radio signal receiver, Low Voltage Differential Signal converter and the time schedule controller of order serial connection; Wherein
Said ultra wide band radio signal receiver receives the wireless signal that the liquid crystal drive plate is sent, and converts parallel signal into, and the parallel signal after the conversion is sent to said Low Voltage Differential Signal converter;
Said Low Voltage Differential Signal receiver converts the parallel signal that receives into Low Voltage Differential Signal, and said Low Voltage Differential Signal is sent to said time schedule controller;
Said time schedule controller is used for driving liquid crystal display displays images according to said Low Voltage Differential Signal.
6. liquid crystal display drive unit as claimed in claim 5 is characterized in that, said ultra wide band radio signal receiver comprises: wireless signal receiver that is linked in sequence and field programmable gate array;
Said wireless signal receiver receives from the ultra-broadband signal in the liquid crystal drive plate with wireless mode; Convert the said ultra-broadband signal that receives into universal serial bus signal, and send to said field programmable gate array;
The said universal serial bus signal that said field programmable gate array will receive converts parallel signal into, and sends to said Low Voltage Differential Signal receiver.
7. liquid crystal display drive unit as claimed in claim 6 is characterized in that, said wireless signal receiver is the ultra broadband chip.
8. a liquid crystal display device comprises liquid crystal panel, it is characterized in that, also comprises: like the arbitrary described liquid crystal drive plate of claim 1-4, and like the arbitrary described liquid crystal display drive unit of claim 5-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204975106U CN202332232U (en) | 2011-12-02 | 2011-12-02 | Liquid crystal drive board, LCD driving device and LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204975106U CN202332232U (en) | 2011-12-02 | 2011-12-02 | Liquid crystal drive board, LCD driving device and LCD |
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| Publication Number | Publication Date |
|---|---|
| CN202332232U true CN202332232U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204975106U Expired - Lifetime CN202332232U (en) | 2011-12-02 | 2011-12-02 | Liquid crystal drive board, LCD driving device and LCD |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646613A (en) * | 2013-12-20 | 2014-03-19 | 广东威创视讯科技股份有限公司 | Display screen with super-narrow frame |
| CN105093601A (en) * | 2015-09-17 | 2015-11-25 | 京东方科技集团股份有限公司 | Display panel, display module, display method of display module, and display device |
| CN106231394A (en) * | 2016-07-21 | 2016-12-14 | 乐视控股（北京）有限公司 | Display device and the adapter for display device |
-
2011
- 2011-12-02 CN CN2011204975106U patent/CN202332232U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646613A (en) * | 2013-12-20 | 2014-03-19 | 广东威创视讯科技股份有限公司 | Display screen with super-narrow frame |
| CN105093601A (en) * | 2015-09-17 | 2015-11-25 | 京东方科技集团股份有限公司 | Display panel, display module, display method of display module, and display device |
| US9846330B2 (en) | 2015-09-17 | 2017-12-19 | Boe Technology Group Co., Ltd. | Display panel, display module and display method thereof, and display device |
| CN105093601B (en) * | 2015-09-17 | 2018-05-25 | 京东方科技集团股份有限公司 | Display panel, display module and its display methods, display device |
| CN106231394A (en) * | 2016-07-21 | 2016-12-14 | 乐视控股（北京）有限公司 | Display device and the adapter for display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150707 Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150707 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150707 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
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| CX01 | Expiry of patent term |