CN102930844A - Display device and adjusting method of data voltage - Google Patents
Display device and adjusting method of data voltage Download PDFInfo
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- CN102930844A CN102930844A CN2012104512993A CN201210451299A CN102930844A CN 102930844 A CN102930844 A CN 102930844A CN 2012104512993 A CN2012104512993 A CN 2012104512993A CN 201210451299 A CN201210451299 A CN 201210451299A CN 102930844 A CN102930844 A CN 102930844A
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Abstract
The invention provides a display device and an adjusting method of data voltage. The display device comprises a timing controller, a plurality of source driver integrated circuits which are connected with the timing controller, and a plurality of display areas which correspond to the plurality of source driver integrated circuits one by one. Each display area is provided with a plurality of data lines, and the plurality of data lines of the display areas are connected with the corresponding source driver integrated circuits. The timing controller comprises an obtaining module and an output module. The obtaining module is used for obtaining of a voltage difference between public electrode voltage of the display areas corresponding to the source driver integrated circuits, and benchmark public electrode voltage. According to the voltage difference, the output module is used for outputting first data signals to the source driver integrated circuits, so that the source driver integrated circuits are adjusted to be outputted to simulated data voltage of the data lines of the corresponding display areas. The display device and the adjusting method of the data voltage achieve adjusting of the source driver integrated circuits to be outputted to the data voltage of the data lines of the display areas, so that inconsistence of a virtual computer (VCOM) in the display areas can be balanced.
Description
Technical field
The present invention relates to the display technique field, relate in particular to the control method of a kind of display device and data voltage.
Background technology
Reason owing to manufacture craft, TFT(Thin Film Transistor, Thin Film Transistor (TFT)) LCD(Liquid Crystal Display, may there be the inconsistent defective of thin and thick in the TFT in (Panel) both sides of display panel liquid crystal display) and centre position, thereby cause the left side of display panel to AA ' (the Active Area on right side, the effective display area territory) the VCOM(public electrode voltages among the district) inconsistent, the display effect of display is impacted.
Summary of the invention
In view of this, the invention provides the control method of a kind of display device and data voltage, to solve the inconsistent problem that affects the display effect of display of VCOM of in the prior art because left side among distinguishing to the AA ' on right side.
For addressing the above problem, the invention provides a kind of display device, comprise: time schedule controller, a plurality of Source drive integrated circuit that are connected with described time schedule controller and with described a plurality of Source drive integrated circuit a plurality of viewing areas one to one, wherein, have many data lines in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit, and described time schedule controller comprises:
Acquisition module is used for obtaining the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of benchmark public electrode voltages;
Output module is used for according to described voltage difference, exports the first data-signal to described Source drive integrated circuit, to adjust the analog data voltage of the data line in the extremely corresponding viewing area of described Source drive integrated circuit output.
Preferably, described the first data-signal comprises described voltage difference and the raw digital video data that need to export described Source drive integrated circuit to, and described Source drive integrated circuit comprises:
The first modular converter is used for when receiving described voltage difference and described raw digital video data described raw digital video data being carried out digital-to-analog conversion, obtains analog data voltage;
The translation module is used for according to described voltage difference described analog data voltage being carried out translation, obtains the first analog data voltage;
The first transmitting element is for the data line of described the first analog data voltage being exported to corresponding viewing area.
Preferably, described the first data-signal comprises the digital of digital video data after the adjustment that obtains after the raw digital video data that needs exported to described Source drive integrated circuit according to described voltage difference are adjusted, and described Source drive integrated circuit comprises:
The second modular converter when being used for the digital of digital video data after receiving described adjustment, carries out digital-to-analog conversion to the digital of digital video data after the described adjustment, obtains the second analog data voltage;
The second sending module is for the data line of described the second analog data voltage being exported to corresponding viewing area.
Preferably, described time schedule controller also comprises:
Adjusting module is used for according to described voltage difference described raw digital video data being adjusted, and obtains the digital of digital video data after the described adjustment.
Preferably, described display device also comprises:
Memory module is used for storing the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of benchmark public electrode voltages;
Described time schedule controller also comprises: working storage is used for the raw digital video data that storage need to export described Source drive integrated circuit to;
Wherein, described acquisition module is used for reading the described voltage difference that described memory module is stored, and described voltage difference is write described working storage;
Described output module comprises:
The first output unit, the described voltage difference and the described raw digital video data that are used for described working storage is stored export described Source drive integrated circuit to as described the first data-signal; Perhaps
The second output unit, the digital of digital video data after the adjustment that obtains after being used for adjusting described raw digital video data according to the described voltage difference that described working storage is stored exports described Source drive integrated circuit to as described the first data-signal.
Preferably, described display device also comprises:
First detection module is for detection of the public electrode voltages of viewing area corresponding to described Source drive integrated circuit;
Computing module is used for calculating the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of described benchmark public electrode voltages.
Preferably, described benchmark public electrode voltages is the public electrode voltages of the default viewing area in described a plurality of viewing area, and described display device also comprises:
The second detection module for detection of the public electrode voltages of described default viewing area, obtains described benchmark public electrode voltages.
The present invention also provides a kind of control method of data voltage, be applied to a display device, described display device comprises: time schedule controller, a plurality of Source drive integrated circuit that are connected with described time schedule controller and with described a plurality of Source drive integrated circuit a plurality of viewing areas one to one, wherein, have many data lines in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit, and described method comprises:
Described time schedule controller obtains the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of benchmark public electrode voltages;
Described time schedule controller exports the first data-signal to described Source drive integrated circuit according to described voltage difference, to adjust the analog data voltage of the data line in the extremely corresponding viewing area of described Source drive integrated circuit output.
Preferably, described the first data-signal comprises described voltage difference and need to export the raw digital video data of described Source drive integrated circuit to, also comprises after the described step that the first data-signal is exported to described Source drive integrated circuit:
Described Source drive integrated circuit is when receiving described voltage difference and described raw digital video data, described raw digital video data are carried out digital-to-analog conversion, obtain analog data voltage, and according to described voltage difference described analog data voltage is carried out translation, obtain the first analog data voltage, and described the first analog data voltage is exported to data line in the corresponding viewing area.
Preferably, described the first data-signal comprises the digital of digital video data after the adjustment that obtains after the raw digital video data that needs exported to described Source drive integrated circuit according to described voltage difference are adjusted, and also comprises after the described step that the first data-signal is exported to described Source drive integrated circuit:
During the digital of digital video data of described Source drive integrated circuit after receiving described adjustment, digital of digital video data after the described adjustment is carried out digital-to-analog conversion, obtain the second analog data voltage, and described the second analog data voltage is exported to data line in the corresponding viewing area.
The present invention has following beneficial effect:
Can be according to the public electrode voltages of the viewing area of Source drive integrated circuit and the voltage difference of benchmark public electrode voltages, adjust the output of Source drive integrated circuit to the data voltage of the data line of corresponding viewing area, with inconsistent VCOM in each viewing area of balance, thus the display effect of raising display device.
Description of drawings
Fig. 1 is a structural representation of the display device of the embodiment of the invention one;
Fig. 2 is another structural representation of the display device of the embodiment of the invention one;
Fig. 3 is the structural representation of the time schedule controller of the embodiment of the invention one;
Fig. 4 is the structural representation of the display device of the embodiment of the invention two;
Fig. 5 is the structural representation of the display device of the embodiment of the invention three;
Fig. 6 is the structural representation of the display device of the embodiment of the invention four;
Fig. 7 is the structural representation of the time schedule controller of the embodiment of the invention four;
Fig. 8 is the schematic flow sheet of control method of the data voltage of the embodiment of the invention five;
Fig. 9 is the schematic flow sheet of control method of the data voltage of the embodiment of the invention six;
Figure 10 is the schematic flow sheet of control method of the data voltage of the embodiment of the invention seven.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
Embodiment one
Please refer to Fig. 1, embodiments of the invention one provide a kind of display device 100, this display device 100 comprises: time schedule controller (TCON) 101, four Source drive integrated circuit that are connected with this time schedule controller 101 (Source Driver IC) 102a, 102b, 102c, 102d and with described four Source drive integrated circuit 102a, 102b, 102c, 102d is four viewing area 103a one to one, 103b, 103c, 103d, wherein, have many data line (not shown) in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit.
This time schedule controller 101 is used for generating the raw digital video data (TCON-Source Driver IC Data) that export Source drive integrated circuit 102a, 102b, 102c, 102d to.
Please refer to Fig. 2, the grid of the TFT on the display device 100 is connected to gate lines G L, and source electrode is connected to data line DL, and drain electrode is connected to pixel electrode and the holding capacitor Cst of the liquid crystal cells Clc of display device 100.VCOM is the public electrode voltages of supplying with to the public electrode of liquid crystal unit Clc.When supplying with scanning impulse for gate lines G L, the TFT conducting, form passage between the source electrode of TFT and the drain electrode, the data voltage of data line DL is supplied to the pixel electrode of liquid crystal cells Clc, at this moment, the Liquid Crystal Molecules Alignment of liquid crystal cells Clc is owing to the electric field between pixel electrode and the public electrode changes, thus modulating the incident light.Can find out from foregoing description, the pixel voltage of the pixel electrode of liquid crystal cells Clc is determined by the data voltage of data line DL, thereby can export by adjustment the data voltage of the data line DL of viewing area to, come VCOM inconsistent of each viewing area of balance.
Based on above-mentioned analysis, in the present embodiment, can set a benchmark public electrode voltages VCOM ' for four viewing area 103a, 103b, 103c, 103d, obtained the voltage difference of viewing area corresponding to each Source drive integrated circuit and benchmark public electrode voltages VCOM ' by time schedule controller 101, then according to this voltage difference, export one first data-signal to the Source drive integrated circuit, adjusting the analog data voltage of the data line of Source drive integrated circuit output to the corresponding viewing area, inconsistent with the VCOM of each viewing area of balance.
Corresponding to foregoing description, as shown in Figure 3, the time schedule controller 101 of the embodiment of the invention can comprise:
Benchmark public electrode voltages VCOM ' in the present embodiment can be a predefined magnitude of voltage, also can be the public electrode voltages of the arbitrary viewing area chosen from described four viewing area 103a, 103b, 103c, 103d.
Described the first data-signal can comprise described voltage difference and need to export the raw digital video data of Source drive integrated circuit to, at this moment, described Source drive integrated circuit is when receiving described voltage difference and described raw digital video data, can carry out digital-to-analog conversion to described raw digital video data, obtain analog data voltage, and according to described voltage difference described analog data voltage is carried out translation, obtain the first analog data voltage, and described the first analog data voltage is exported to data line in the corresponding viewing area.
Digital of digital video data after the adjustment that described the first data-signal also can obtain after adjusting for the raw digital video data that needs exported to described Source drive integrated circuit according to described voltage difference, at this moment, during the digital of digital video data of described Source drive integrated circuit after receiving described adjustment, can carry out digital-to-analog conversion to the digital of digital video data after the described adjustment, obtain the second analog data voltage, and described the second analog data voltage is exported to data line in the corresponding viewing area.
When the below comprised different content to described the first data-signal respectively, the structure of the display device of the embodiment of the invention was elaborated.
Embodiment two
In the present embodiment, described the first data-signal comprises the public electrode voltages of the viewing area that the Source drive integrated circuit is corresponding and the voltage difference and the raw digital video data that need to export the Source drive integrated circuit to of benchmark public electrode voltages.
Be illustrated in figure 4 as the structural representation of the display device of the embodiment of the invention two, this display device comprises: only illustrate one among time schedule controller 101, a plurality of Source drive integrated circuit 103(Fig. 4 of being connected with this time schedule controller 101) and with described a plurality of Source drive integrated circuit 103 a plurality of viewing area (not shown) one to one, wherein, have many data line (not shown) in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit.
Described time schedule controller 101 comprises:
Described Source drive integrated circuit 103 comprises:
The first modular converter 401 is used for when receiving described voltage difference and described raw digital video data described raw digital video data being carried out digital-to-analog conversion, obtains analog data voltage;
Translation module 402 is used for according to described voltage difference described analog data voltage being carried out translation, obtains the first analog data voltage;
The first sending module 403 is for the data line of described the first analog data voltage being exported to corresponding viewing area.
The display device that provides by above-described embodiment, time schedule controller obtains the public electrode voltages of viewing area of Source drive integrated circuit and the voltage difference of benchmark public electrode voltages, and export the Source drive integrated circuit to, so that the Source drive integrated circuit can export according to this voltage difference adjustment the data voltage of the data line of corresponding viewing area to, thereby inconsistent VCOM in each viewing area of balance, the display effect of raising display device.
Embodiment three
In the present embodiment, described the first data-signal comprises the digital of digital video data after the adjustment that obtains after the raw digital video data that needs exported to described Source drive integrated circuit according to described voltage difference are adjusted.
Be illustrated in figure 5 as the structural representation of the display device of the embodiment of the invention three, this display device comprises: only illustrate one among time schedule controller 101, a plurality of Source drive integrated circuit 103(Fig. 5 of being connected with this time schedule controller 101) and with described a plurality of Source drive integrated circuit 103 a plurality of viewing area (not shown) one to one, wherein, have many data line (not shown) in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit.
Described time schedule controller 101 comprises:
Adjusting module 303 is used for according to described voltage difference, and the raw digital video data that needs exported to described Source drive integrated circuit are adjusted, and obtains the digital of digital video data after the described adjustment.
Source drive integrated circuit 103 comprises:
The second modular converter 501 when being used for the digital of digital video data after receiving described adjustment, carries out digital-to-analog conversion to the digital of digital video data after the described adjustment, obtains the second analog data voltage;
The second sending module 502 is for the data line of described the second analog data voltage being exported to corresponding viewing area.
The display device that provides by above-described embodiment, time schedule controller can be according to the public electrode voltages of the viewing area of Source drive integrated circuit and the voltage difference of benchmark public electrode voltages, adjustment need to export the raw digital video data of Source drive integrated circuit to, then the digital of digital video data that will obtain after will adjusting exports the Source drive integrated circuit to, so that exporting the data voltage of the data line of extremely corresponding viewing area, the Source drive integrated circuit is adjusted, thereby inconsistent VCOM in each viewing area of balance, the display effect of raising display device.
Can find out from above-described embodiment, the time schedule controller of the embodiment of the invention exports to the raw digital video data of Source drive integrated circuit 102a, 102b, 102c, 102d except being used for generating, and also is used for adjusting the data voltage of Source drive integrated circuit output.Described time schedule controller can adopt various ways to adjust the data voltage of Source drive integrated circuit output, and the below will describe for example.
Embodiment four
Please refer to Fig. 6, the display device of the embodiment of the invention four comprise time schedule controller 101,104, four Source drive integrated circuit of memory module (TCON-EEPROM) (Source Driver IC) 102a, 102b, 102c, 102d and with described four Source drive integrated circuit 102a, 102b, 102c, 102d one to one a plurality of viewing area 103a, 103b, 103c, 103d, wherein, all have many data line (not shown) in each viewing area, many data lines in the described viewing area connect with corresponding described Source drive integrated circuit.
This memory module (TCON-EEPROM) 104 is used for the public electrode voltages of viewing area corresponding to storage Source drive integrated circuit and the voltage difference of benchmark public electrode voltages.In the present embodiment, this memory module 104 is the modules that arrange separately, and certainly, in other embodiments of the invention, this memory module 104 can also be integrated in this time schedule controller 101.
Please refer to Fig. 7, this time schedule controller 101 also comprises:
Working storage 701 is used for the raw digital video data that storage need to export described Source drive integrated circuit to;
That is, described output module 703 can comprise any one of following two functional modules or all:
The first output unit 7031, the described voltage difference and the described raw digital video data that are used for described working storage is stored export described Source drive integrated circuit to; Perhaps
The second output unit 7032, the digital of digital video data after the adjustment that obtains after being used for adjusting described raw digital video data according to the described voltage difference that described working storage is stored exports described Source drive integrated circuit to.
This working storage 701 is the memory module of time schedule controller 101 inside, when display device is started shooting each time, time schedule controller 101 will read data (comprising the data that offer Source drive integrated circuit and gate driver integrated circuit (Gate driver IC)) in the outside memory module 104, and be stored in this working storage 701, then, the data with storage in the working storage 701 export Source drive integrated circuit and gate driver integrated circuit to.
In the present embodiment, the public electrode voltages of viewing area that can the Source drive integrated circuit is corresponding and the voltage difference of benchmark public electrode voltages are stored in the corresponding position of memory module 104, when display device is started shooting, time schedule controller 101 will read this voltage difference of the corresponding position storage of memory module 104, and be stored in this working storage 701, then, export the described voltage difference of storage in the working storage 701 to the Source drive integrated circuit, thereby control Source drive integrated circuit carries out the translation of analog data voltage.With respect to existing Source drive integrated circuit, the Source drive integrated circuit in the present embodiment also needs to increase newly the pin pin that at least one is used for receiving above-mentioned voltage difference in order to receive above-mentioned voltage difference.
In addition, in the present embodiment, after time schedule controller 101 can also be stored in this working storage 701 in this voltage difference of the corresponding position of the memory module 104 that will read storage, described voltage difference according to storage in the working storage 701, adjustment need to export the raw digital video data of Source drive integrated circuit to, digital of digital video data after being adjusted also exports the Source drive integrated circuit to, thereby so that the analog data voltage of Source drive integrated circuit output be adjusted.
The below describes the method how time schedule controller 101 in the embodiment of the invention is adjusted the analog data voltage of Source drive integrated circuit output for example.
The memory location of the working storage of the time schedule controller 101 in the present embodiment can be as shown in the table:
As can be seen from the above table, the working storage 701 of time schedule controller 101 has 8 memory locations, wherein,
Memory location 0,1 is corresponding to Source drive integrated circuit 102a, 0 place inserts numeric representation and need to control the translation that makes progress of the analog data voltage of Source drive integrated circuit 102a in the memory location, and 1 place inserts the downward translation of analog data voltage that numeric representation need to be controlled Source drive integrated circuit 102a in the memory location;
Memory location 2,3 is corresponding to Source drive integrated circuit 102b, 2 places insert numeric representation and need to control the translation that makes progress of the analog data voltage of Source drive integrated circuit 102b in the memory location, and 3 places insert the downward translation of analog data voltage that numeric representation need to be controlled Source drive integrated circuit 102b in the memory location;
Memory location 4,5 is corresponding to Source drive integrated circuit 102c, 4 places insert numeric representation and need to control the translation that makes progress of the analog data voltage of Source drive integrated circuit 102c in the memory location, and 5 places insert the downward translation of analog data voltage that numeric representation need to be controlled Source drive integrated circuit 102c in the memory location;
Memory location 6,7 is corresponding to Source drive integrated circuit 102d, 6 places insert numeric representation and need to control the translation that makes progress of the analog data voltage of Source drive integrated circuit 102d in the memory location, and 7 places insert the downward translation of analog data voltage that numeric representation need to be controlled Source drive integrated circuit 102d in the memory location.
The voltage difference of the public electrode voltages in each viewing area of display device is VX, voltage difference VX is usually at 0.1～0.2V(volt) in the scope, thereby, in the present embodiment, can with the setting range of the analog data voltage Vout of Source drive integrated circuit according on the control that moves or move down be designed to Vout-0.2＜Vout＜Vout+0.2.
In addition, the precision of the adjustment of the analog data voltage Vout of Source drive integrated circuit can be determined by the figure place of the working storage in the time schedule controller, the figure place of the working storage shown in the above table is 8, then the adjustment of analog data voltage Vout is had 2
8(256) rank namely to the numerical value of the every adjustment single order of analog data voltage Vout are ± 0.2/256V.
For instance, suppose VCOM take viewing area 103a as the benchmark public electrode voltages, the VCOM of viewing area 103a is 5V.The VCOM that detects viewing area 103b is 4.96V, and then the voltage difference of the VCOM of viewing area 103b and benchmark public electrode voltages is 0.04V.
The figure place of supposing working storage is 2, then the adjustment of analog data voltage Vout is had 2
2Then there is 0.2V/2 on rank
2Rank=0.05V, namely to the numerical value of the every adjustment single order of analog data voltage Vout be ± 0.05V, concrete, can adopt (0,0) the expression voltage difference is 0, and adopting (0,1) expression voltage difference is 0.05, adopts (1,0) the expression voltage difference is 0.1, and adopting (1,1) expression voltage difference is 0.15.
At this moment, time schedule controller 101 can be (0,0) to Source drive integrated circuit 102a output numerical value by the memory location, position 0 or 1 of working storage, and expression does not need the analog data voltage of translation Source drive integrated circuit 102a; Can the memory location, position 2 by working storage can be (0,1) to Source drive integrated circuit 102b output numerical value, the expression translation single order (0.05V) that the analog data voltage of Source drive integrated circuit 102b need to be made progress.
In above-described embodiment, all have four Source drive integrated circuit take display device and describe as example, certainly, in other embodiments of the invention, the number of the Source drive integrated circuit in the display device also can be other quantity.
In above-described embodiment, can adopt the public electrode voltages of viewing area corresponding to special parts detection resources driver IC, and calculate the public electrode voltages of detection and the voltage difference of benchmark public electrode voltages, namely the display device in above-described embodiment can also comprise:
First detection module is for detection of the public electrode voltages of viewing area corresponding to described Source drive integrated circuit;
Computing module is used for calculating the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of benchmark public electrode voltages.
When described benchmark public electrode voltages is the public electrode voltages of the default viewing area in described a plurality of viewing area, described display device can also comprise:
The second detection module for detection of the public electrode voltages of described default viewing area, obtains described benchmark public electrode voltages.
Embodiment five
Be illustrated in figure 8 as the schematic flow sheet of control method of the data voltage of embodiments of the invention five, the control method of this data voltage is applied to a display device, described display device comprise time schedule controller, a plurality of Source drive integrated circuit that are connected with described time schedule controller and with described a plurality of Source drive integrated circuit a plurality of viewing areas one to one, wherein, have many data lines in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit, said method comprising the steps of:
Described the first data-signal can comprise described voltage difference and need to export the raw digital video data of Source drive integrated circuit to, at this moment, described Source drive integrated circuit is when receiving described voltage difference and described raw digital video data, can carry out digital-to-analog conversion to described raw digital video data, obtain analog data voltage, and according to described voltage difference described analog data voltage is carried out translation, obtain the first analog data voltage, and described the first analog data voltage is exported to data line in the corresponding viewing area.
Digital of digital video data after the adjustment that described the first data-signal also can obtain after adjusting for the raw digital video data that needs exported to described Source drive integrated circuit according to described voltage difference, at this moment, during the digital of digital video data of described Source drive integrated circuit after receiving described adjustment, can carry out digital-to-analog conversion to the digital of digital video data after the described adjustment, obtain the second analog data voltage, and described the second analog data voltage is exported to data line in the corresponding viewing area.
Embodiment six
In the present embodiment, described the first data-signal comprises the public electrode voltages of the viewing area that the Source drive integrated circuit is corresponding and the voltage difference and the raw digital video data that need to export the Source drive integrated circuit to of benchmark public electrode voltages.
Be illustrated in figure 9 as the schematic flow sheet of control method of the data voltage of embodiments of the invention six, the control method of this data voltage is applied to the time schedule controller of a display device, described display device also comprise a plurality of Source drive integrated circuit and with described a plurality of Source drive integrated circuit a plurality of viewing areas one to one, wherein, have many data lines in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit, said method comprising the steps of:
The method that provides by above-described embodiment, time schedule controller obtains the public electrode voltages of viewing area of Source drive integrated circuit and the voltage difference of benchmark public electrode voltages, and export the Source drive integrated circuit to, so that the Source drive integrated circuit can export according to this voltage difference adjustment the data voltage of the data line of corresponding viewing area to, thereby inconsistent VCOM in each viewing area of balance, the display effect of raising display device.
Embodiment seven
Be the schematic flow sheet of control method of the data voltage of embodiments of the invention seven as shown in figure 10, the control method of this data voltage is applied to the time schedule controller of a display device, described display device also comprise a plurality of Source drive integrated circuit and with described a plurality of Source drive integrated circuit a plurality of viewing areas one to one, wherein, have many data lines in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit, said method comprising the steps of:
During digital of digital video data after receiving described adjustment of step 1004, described Source drive integrated circuit, the digital of digital video data after the described adjustment is carried out digital-to-analog conversion, obtain the second analog data voltage;
The method that provides by above-described embodiment, time schedule controller can be according to the public electrode voltages of the viewing area of Source drive integrated circuit and the voltage difference of benchmark public electrode voltages, adjustment need to export the raw digital video data of Source drive integrated circuit to, then the digital of digital video data that will obtain after will adjusting exports the Source drive integrated circuit to, so that exporting the data voltage of the data line of extremely corresponding viewing area, the Source drive integrated circuit is adjusted, thereby inconsistent VCOM in each viewing area of balance, the display effect of raising display device.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. display device, comprise: time schedule controller, a plurality of Source drive integrated circuit that are connected with described time schedule controller and with described a plurality of Source drive integrated circuit a plurality of viewing areas one to one, wherein, have many data lines in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit, it is characterized in that, described time schedule controller comprises:
Acquisition module is used for obtaining the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of benchmark public electrode voltages;
Output module is used for according to described voltage difference, exports the first data-signal to described Source drive integrated circuit, to adjust the analog data voltage of the data line in the extremely corresponding viewing area of described Source drive integrated circuit output.
2. display device as claimed in claim 1 is characterized in that, described the first data-signal comprises described voltage difference and the raw digital video data that need to export described Source drive integrated circuit to, and described Source drive integrated circuit comprises:
The first modular converter is used for when receiving described voltage difference and described raw digital video data described raw digital video data being carried out digital-to-analog conversion, obtains analog data voltage;
The translation module is used for according to described voltage difference described analog data voltage being carried out translation, obtains the first analog data voltage;
The first transmitting element is for the data line of described the first analog data voltage being exported to corresponding viewing area.
3. display device as claimed in claim 1, it is characterized in that, described the first data-signal comprises the digital of digital video data after the adjustment that obtains after the raw digital video data that needs exported to described Source drive integrated circuit according to described voltage difference are adjusted, and described Source drive integrated circuit comprises:
The second modular converter when being used for the digital of digital video data after receiving described adjustment, carries out digital-to-analog conversion to the digital of digital video data after the described adjustment, obtains the second analog data voltage;
The second sending module is for the data line of described the second analog data voltage being exported to corresponding viewing area.
4. display device as claimed in claim 3 is characterized in that, described time schedule controller also comprises:
Adjusting module is used for according to described voltage difference described raw digital video data being adjusted, and obtains the digital of digital video data after the described adjustment.
5. display device as claimed in claim 1 is characterized in that, also comprises:
Memory module is used for storing the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of benchmark public electrode voltages;
Described time schedule controller also comprises: working storage is used for the raw digital video data that storage need to export described Source drive integrated circuit to;
Wherein, described acquisition module is used for reading the described voltage difference that described memory module is stored, and described voltage difference is write described working storage;
Described output module comprises:
The first output unit, the described voltage difference and the described raw digital video data that are used for described working storage is stored export described Source drive integrated circuit to as described the first data-signal; Perhaps
The second output unit, the digital of digital video data after the adjustment that obtains after being used for adjusting described raw digital video data according to the described voltage difference that described working storage is stored exports described Source drive integrated circuit to as described the first data-signal.
6. display device as claimed in claim 1 is characterized in that, also comprises:
First detection module is for detection of the public electrode voltages of viewing area corresponding to described Source drive integrated circuit;
Computing module is used for calculating the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of described benchmark public electrode voltages.
7. display device as claimed in claim 6 is characterized in that, described benchmark public electrode voltages is the public electrode voltages of the default viewing area in described a plurality of viewing area, and described display device also comprises:
The second detection module for detection of the public electrode voltages of described default viewing area, obtains described benchmark public electrode voltages.
8. the control method of a data voltage, be applied to a display device, described display device comprises: time schedule controller, a plurality of Source drive integrated circuit that are connected with described time schedule controller and with described a plurality of Source drive integrated circuit a plurality of viewing areas one to one, wherein, have many data lines in each viewing area, many data lines in the described viewing area connect with corresponding Source drive integrated circuit, it is characterized in that, described method comprises:
Described time schedule controller obtains the public electrode voltages of viewing area corresponding to described Source drive integrated circuit and the voltage difference of benchmark public electrode voltages;
Described time schedule controller exports the first data-signal to described Source drive integrated circuit according to described voltage difference, to adjust the analog data voltage of the data line in the extremely corresponding viewing area of described Source drive integrated circuit output.
9. the control method of data voltage as claimed in claim 8, it is characterized in that, described the first data-signal comprises described voltage difference and need to export the raw digital video data of described Source drive integrated circuit to, also comprises after the described step that the first data-signal is exported to described Source drive integrated circuit:
Described Source drive integrated circuit is when receiving described voltage difference and described raw digital video data, described raw digital video data are carried out digital-to-analog conversion, obtain analog data voltage, and according to described voltage difference described analog data voltage is carried out translation, obtain the first analog data voltage, and described the first analog data voltage is exported to data line in the corresponding viewing area.
10. the control method of data voltage as claimed in claim 8, it is characterized in that, described the first data-signal comprises the digital of digital video data after the adjustment that obtains after the raw digital video data that needs exported to described Source drive integrated circuit according to described voltage difference are adjusted, and also comprises after the described step that the first data-signal is exported to described Source drive integrated circuit:
During the digital of digital video data of described Source drive integrated circuit after receiving described adjustment, digital of digital video data after the described adjustment is carried out digital-to-analog conversion, obtain the second analog data voltage, and described the second analog data voltage is exported to data line in the corresponding viewing area.
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