CN101533612A - Liquid crystal display device and drive module thereof - Google Patents
Liquid crystal display device and drive module thereof Download PDFInfo
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- CN101533612A CN101533612A CN200810085275A CN200810085275A CN101533612A CN 101533612 A CN101533612 A CN 101533612A CN 200810085275 A CN200810085275 A CN 200810085275A CN 200810085275 A CN200810085275 A CN 200810085275A CN 101533612 A CN101533612 A CN 101533612A
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Abstract
The invention discloses a drive module used for driving a liquid crystal display panel. The drive module comprises a time sequence control circuit, a data drive circuit and at least one distributor circuit. The data drive circuit is connected to the liquid crystal display panel through a plurality of data wires. The time sequence control circuit transmits at least one control signal and a data signal to the distributor circuit through a first transmission interface. The distributor circuit transmits the control signal and the data signal to the data drive circuit through a second transmission interface, and the transmission frequency of the first transmission interface is different from that of the second transmission interface. The invention also discloses a liquid crystal display device provided with the drive module.
Description
Technical field
The present invention relates to a kind of display device and driver module thereof, particularly a kind of liquid crystal indicator and driver module thereof.
Background technology
Along with the development of flat panel display technology, build is frivolous because of having for liquid crystal indicator, low power consumption and advantageous characteristic such as radiationless, has replaced the conventional cathode ray tube display device gradually, and has been applied to various electronic product.And in the movement, the miniaturization of electronic product and to reduce cost be the target that industry is made great efforts always.
With reference to shown in Figure 1, a kind of existing liquid crystal indicator 1 comprises display panels 11 and driver module 12.Driver module 12 is adjacent with display panels 11, and has sequential control circuit 121 and data drive circuit 122.Sequential control circuit 121 is arranged on the circuit board B1, and via flexible PCB (Flexible Printed Circuit FPC) 125 transmits at least one control signal (for example frequency signal, polarity inversion signal ...) and data-signal to data drive circuit 122.Data drive circuit 122 is connected to display panels 11 via many data lines, and drives display panels 11 according to above-mentioned signal.
Traditional sequential control circuit is the difference along with display panels resolution, and the output pin (pin) of different numbers is arranged, and along with the raising of display panels 11 resolution, the number of pins of sequential control circuit 121 also needs to increase thereupon, to increase the transmission quantity of signal.Yet this also increases the encapsulation volume of sequential control circuit 121 and the area of circuit board B1, so that product can't miniaturization, and the pin that the area that increases of circuit board B1 and sequential control circuit 121 increase also significantly increases cost.
Therefore, how to provide a kind of liquid crystal indicator and driver module thereof, can keep even reduce the number of pins of sequential control circuit when resolution improves, and then with miniaturization of electronic products and reduce cost, real be one of problem of solving of current need.
Summary of the invention
In view of above-mentioned problem, the number of pins of sequential control circuit be kept even be reduced to purpose of the present invention can for providing a kind of when resolution improves, and then miniaturization and liquid crystal indicator that reduces cost and driver module thereof.
Therefore, for reaching above-mentioned purpose, according to a kind of driver module of the present invention, it drives display panels.Driver module comprises sequential control circuit, data drive circuit and at least one distributor circuit.Data drive circuit is connected to display panels via many data lines.Sequential control circuit transmits at least one control signal and a data-signal to distributor circuit via first transmission interface.Distributor circuit transmits control signal and data-signal to data drive circuit via second transmission interface, and the transmission frequency of first transmission interface is different with the transmission frequency of second transmission interface.
For reaching above-mentioned purpose, comprise display panels and driver module according to a kind of liquid crystal indicator of the present invention.Driver module drives this display panels, and comprises sequential control circuit, data drive circuit and at least one distributor circuit.Data drive circuit is connected to display panels via many data lines.Sequential control circuit transmits at least one control signal and a data-signal to distributor circuit via first transmission interface.Distributor circuit transmits control signal and data-signal to data drive circuit via second transmission interface, and the transmission frequency of first transmission interface is different with the transmission frequency of second transmission interface.
From the above, according to a kind of liquid crystal indicator of the present invention and driver module thereof at least one distributor circuit is set between sequential control circuit and data drive circuit.Available high-frequency transmission interface between distributor circuit and the sequential control circuit, and can reduce the number of pins of sequential control circuit, and then reduce the encapsulation volume of sequential control circuit and the area of circuit board and the purpose that reaches miniaturization and reduce cost.
Description of drawings
Fig. 1 is a kind of synoptic diagram of available liquid crystal display device;
Fig. 2 is the synoptic diagram according to a kind of liquid crystal indicator of the preferred embodiment of the present invention;
Fig. 3 is according to the sequential control circuit of the liquid crystal indicator of the preferred embodiment of the present invention and the block diagram of distributor circuit; And
Fig. 4 to Fig. 8 is for having the synoptic diagram of multiple variation pattern according to the liquid crystal indicator of the preferred embodiment of the present invention.
Embodiment
Hereinafter with reference to accompanying drawing, a kind of liquid crystal indicator and driver module thereof according to the preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference symbol.
With reference to shown in Figure 2, the liquid crystal indicator 2 of the preferred embodiment of the present invention comprises display panels 21 and driver module 22.Driver module 22 and display panels 21 adjacent settings, and comprise sequential control circuit 221, data drive circuit 222 and at least one distributor circuit 224.
In the present embodiment, sequential control circuit 221 is integrated circuit (IC), and is arranged on the circuit board B2.Distributor circuit 224 is an integrated circuit, and is arranged on the circuit board B2.Data drive circuit 222 is arranged on the thin film transistor base plate of display panels 21, forms glass top chip (Chip On Glass, mode COG).
With reference to shown in Figure 3, to further specify the inside structure of sequential control circuit 221 and distributor circuit 224.Sequential control circuit 221 has Data Receiving unit 2211, data generation unit 2212 and at least one first delivery unit 2213.Data Receiving unit 2211 is received from the image data that external interface sends.Data generation unit 2212 changes into data-signal and the control signal that data drive circuit 222 can be used with image data, also self produces other control signal.First delivery unit 2213 is sent to distributor circuit 224 with data-signal and control signal.
In the present embodiment, first transmission interface is the upper frequency transmission interface, and with respect to first transmission interface, second transmission interface is the lower frequency transmission interface.Wherein, first transmission interface for example is but is not limited to AC coupling interface or quick peripheral element connecting interface.Second transmission interface for example for but be not limited to CMDI or low-swing difference signal (Reduced SwingDifferential Signaling, RSDS) interface more.The signal conversion unit 2242 of present embodiment has the serial-to-parallel function switching signal.
In the present invention, the position that is provided with of sequential control circuit and distributor circuit is not limited in mode shown in Figure 2.As shown in Figure 4, distributor circuit 324 is arranged on the film F 3, and (Chip On Film, mode COF) so can make the area of circuit board B3 littler of to reduce cost and become chip on the film; As shown in Figure 5, the quantity of distributor circuit 424 can be according to need, and for example higher resolution and increasing is three distributor circuits 424 shown in Fig. 5; As shown in Figure 6, distributor circuit 524 is integrated in the same integrated circuit with sequential control circuit 521 one of at least; As shown in Figure 7, a sequential control circuit and a distributor circuit at least wherein are to be integrated in the chip 625, and are arranged at film F 6, and form the mode of chip on the film; Again as shown in Figure 8, a sequential control circuit and a distributor circuit at least wherein are to be integrated in the chip 725, and are arranged at film F 7, in addition, another distributor circuit 724 also is arranged at another film F 7, and the mode that forms chip on the film is with the size of dwindling circuit board B7 and reduce cost.
In sum, according to a kind of liquid crystal indicator of the present invention and driver module thereof at least one distributor circuit is set between sequential control circuit and data drive circuit.Available high-frequency transmission interface between distributor circuit and the sequential control circuit, and can reduce the number of pins of sequential control circuit, and then reduce the encapsulation volume of sequential control circuit and the area of circuit board and the purpose that reaches miniaturization and reduce cost.
The above only is an illustrative, but not is restrictive.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the scope of appended claim its equivalent modifications of carrying out or change.
Claims (15)
1, a kind of driver module is used to drive display panels, and described driver module comprises:
Sequential control circuit;
Data drive circuit has many data lines and is connected to described display panels; And
At least one distributor circuit;
Wherein, described sequential control circuit transmits at least one control signal and a data-signal to described distributor circuit via first transmission interface, described distributor circuit transmits described control signal and described data-signal to described data drive circuit via second transmission interface, and the transmission frequency of described first transmission interface is different with the transmission frequency of described second transmission interface.
2, driver module as claimed in claim 1, wherein said sequential control circuit is arranged on circuit board or the film.
3, driver module as claimed in claim 1, wherein said data drive circuit is arranged at described display panels.
4, driver module as claimed in claim 1, wherein said distributor circuit is arranged on circuit board or the film.
5, driver module as claimed in claim 1, being positioned on the same integrated circuit one of at least of wherein said distributor circuit with described sequential control circuit.
6, driver module as claimed in claim 1, the transmission frequency of wherein said first transmission interface is greater than the transmission frequency of described second transmission interface.
7, driver module as claimed in claim 1, wherein said first transmission interface are AC coupling interface or quick peripheral element connecting interface.
8, driver module as claimed in claim 1, wherein said second transmission interface be CMDI and RSDS one of them.
9, driver module as claimed in claim 1, wherein said first transmission interface comprises at least one first delivery unit and at least one first receiving element, described first delivery unit is arranged in the described sequential control circuit, and described first receiving element is arranged in the described distributor circuit.
10, driver module as claimed in claim 1, wherein said second transmission interface comprises at least one second delivery unit and at least one second receiving element, described second delivery unit is arranged in the described distributor circuit, and described second receiving element is arranged in the described data drive circuit.
11, driver module as claimed in claim 1, wherein said distributor circuit comprises at least one signal conversion unit, and it changes described control signal and described data-signal according to described second transmission interface.
12, a kind of liquid crystal indicator comprises:
Display panels; And
Driver module drives described display panels, and comprises:
Sequential control circuit;
Data drive circuit has many data lines and is connected to described display panels;
And
At least one distributor circuit;
Wherein, described sequential control circuit transmits at least one control signal and a data-signal to described distributor circuit via first transmission interface, described distributor circuit transmits described control signal and described data-signal to described data drive circuit via second transmission interface, and the transmission frequency of described first transmission interface is different with the transmission frequency of described second transmission interface.
13, liquid crystal indicator as claimed in claim 12, wherein said first transmission interface comprises at least one first delivery unit and at least one first receiving element, described first delivery unit is arranged in the described sequential control circuit, and described first receiving element is arranged in the described distributor circuit.
14, as claim 12 a described liquid crystal indicator, wherein said second transmission interface comprises at least one second delivery unit and at least one second receiving element, described second delivery unit is arranged in the described distributor circuit, and described second receiving element is arranged in the described data drive circuit.
15, as claim 12 a described liquid crystal indicator, wherein said distributor circuit comprises at least one signal conversion unit, and it changes described control signal and described data-signal according to described second transmission interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810085275A CN101533612A (en) | 2008-03-10 | 2008-03-10 | Liquid crystal display device and drive module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810085275A CN101533612A (en) | 2008-03-10 | 2008-03-10 | Liquid crystal display device and drive module thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101533612A true CN101533612A (en) | 2009-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810085275A Pending CN101533612A (en) | 2008-03-10 | 2008-03-10 | Liquid crystal display device and drive module thereof |
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| CN (1) | CN101533612A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789772A (en) * | 2012-08-10 | 2012-11-21 | 京东方科技集团股份有限公司 | Liquid crystal display (LCD) panel driving device and method |
| CN105575346A (en) * | 2014-10-13 | 2016-05-11 | 群创光电股份有限公司 | Display panel and automatic testing method for display panel |
| WO2017092108A1 (en) * | 2015-12-02 | 2017-06-08 | 深圳市华星光电技术有限公司 | Liquid crystal television apparatus and system |
| CN107610638A (en) * | 2016-07-11 | 2018-01-19 | 茂达电子股份有限公司 | Light emitting diode display device |
-
2008
- 2008-03-10 CN CN200810085275A patent/CN101533612A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789772A (en) * | 2012-08-10 | 2012-11-21 | 京东方科技集团股份有限公司 | Liquid crystal display (LCD) panel driving device and method |
| CN105575346A (en) * | 2014-10-13 | 2016-05-11 | 群创光电股份有限公司 | Display panel and automatic testing method for display panel |
| CN105575346B (en) * | 2014-10-13 | 2018-08-14 | 群创光电股份有限公司 | Display panel and display panel automated detection method |
| WO2017092108A1 (en) * | 2015-12-02 | 2017-06-08 | 深圳市华星光电技术有限公司 | Liquid crystal television apparatus and system |
| CN107610638A (en) * | 2016-07-11 | 2018-01-19 | 茂达电子股份有限公司 | Light emitting diode display device |
| CN107610638B (en) * | 2016-07-11 | 2019-07-02 | 茂达电子股份有限公司 | Light emitting diode display device |
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Application publication date: 20090916 |