CN101777297B - Display system, source electrode drive device and picture black frame insertion method - Google Patents
Display system, source electrode drive device and picture black frame insertion method Download PDFInfo
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- CN101777297B CN101777297B CN2009100016390A CN200910001639A CN101777297B CN 101777297 B CN101777297 B CN 101777297B CN 2009100016390 A CN2009100016390 A CN 2009100016390A CN 200910001639 A CN200910001639 A CN 200910001639A CN 101777297 B CN101777297 B CN 101777297B
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Abstract
The invention relates to a display system, a source electrode drive device and a picture black frame insertion method. The source electrode drive device comprises a data channel, a black frame insertion data line, a first selector and a second selector. A first terminal of the first selector is coupled with a first data line and a second terminal thereof is coupled with a second data line and a common terminal thereof is coupled with an output terminal of the data channel. A first terminal of the second selector is coupled with a first data line and a second terminal thereof is coupled with a second data line and a common terminal thereof is coupled with a black frame insertion data line. In a first period, the common terminal of the first selector is electrically connected with the first terminal of the first selector and the common terminal of the second selector is connected with the second terminal of the second selector. In the second period, the common terminal of the first selector is electrically connected with the first terminal of the first selector and the common terminal of the second selector is connected with the first terminal of the second selector.
Description
Technical field
The present invention relates to a kind of picture black frame insertion method, particularly relate to a kind of source electrode driving device and picture black frame insertion method thereof that uses capable black plug.
Background technology
Along with human civilization advance, device for image becomes the product that is seen everywhere in the daily life already, wherein indispensable member in the said especially device for image of display.The user reads message by display, even passes through the running of the indirect control device of display.In recent years, because flat-panel screens (FPD) has that space utilization efficient is good, high image quality, low consumpting power, advantageous characteristic such as radiationless, made flat-panel screens replace the trend of conventional cathode ray (CRT) display gradually.Yet because flat-panel screens is to adopt the demonstration of maintenance pattern (hold-type), that is before the next record data did not write pixel, this pixel promptly kept showing these data at present.Therefore, such maintenance pattern is understood the ghost phenomena because of eyes when being used to show on the dynamic menu, and causes the smear phenomenon of dynamic menu.
In order to improve the dynamic image quality of liquid crystal indicator, the common practice is to improve the renewal frequency (Frame Rate) of picture at present, and in the middle of two normal display frames, inserts complete black picture, the perhaps picture through the pixel data computing.In other words, if will normally show the image of 60Hz, the frequency of display will increase to 120Hz, and to insert a picture behind the complete black picture exclusive disjunction between two normal display frame, it is like Figure 1A and Figure 1B Alternation Display.Figure 1A and Figure 1B are that the picture of conventional visual black frame inserting method shows synoptic diagram.No matter insert that a kind of picture; The capital makes the needed data frequency range of the chip for driving of liquid crystal panel increase, thereby increases the difficulty that designs and produces and the cost of display system control panel, time schedule controller (T-CON) and chip for driving (for example source driving chip or grid drive chip).
In addition, traditional picture black frame insertion method also can use the mode of row black plug to carry out the picture black frame insertion of display.The row black plug can be single-row black plug or regional black plug (that is comprising two row more than two row).In the pixel column transmission black plug data of the sweep trace of desiring to carry out black plug, so that pixel single-row or multiple row (that is zone) shows the black plug data.In next display frame, the normal pixel column that shows is carried out picture black frame insertion, is then normally shown by the pixel column of black plug originally, carries out the display picture black plug with this.
Summary of the invention
The present invention provides a source driving device, can reduce the frequency range of data transmission.
The present invention also provides a kind of picture black frame insertion method, can utilize the mode of capable black plug to carry out picture black frame insertion.
The present invention provides a kind of image display system again, can be on the one scan line display pixel data and black plug data simultaneously.
The present invention proposes a source driving device, and it comprises first data channel, black plug data line, first selector and second selector.The black plug data line is in order to provide the black plug data.First end of first selector is coupled to first data line in the display panel, and its second end is coupled to second data line in the display panel, with and first common ends be coupled to the first data channel output terminal.First end of second selector is coupled to first data line, and its second end is coupled to second data line, with and common ends be coupled to the black plug data line.During the first, first selector is electrically connected to its first end with its first common ends, and second selector is electrically connected to its second end with its common ends.During the second, first selector is electrically connected to its second end with its first common ends, and second selector is electrically connected to its first end with its common ends.
In one embodiment of this invention, above-mentioned source electrode driving device also comprises second data channel, and above-mentioned first selector also comprises second common ends and the 3rd end, and second selector also comprises one the 3rd end.The 3rd end of first selector is coupled to the 3rd data line in the display panel, and its second common ends is coupled to the output terminal of second data channel.The 3rd end of second selector electrically connects the 3rd data line.Between the first phase and in the second phase, first selector is electrically connected to its 3rd end with its second common ends.In between the third phase, first selector is electrically connected to its second end with its first common ends, and first selector is electrically connected to its first end with its second common ends, and second selector is electrically connected to its 3rd end with its common ends.
In one embodiment of this invention, be 3i-1 image duration of display panel between the above-mentioned first phase, and the second phase be 3i-2 image duration of display panel, and be 3i image duration of display panel between the third phase, i is a positive integer.
In one embodiment of this invention, between the above-mentioned first phase be the odd-numbered frame of display panel during, and during the second phase is the even frame of display panel.
In one embodiment of this invention, between the above-mentioned first phase 4i-3 bar and the scan period of 4i-2 bar sweep trace in during the odd-numbered frame of display panel, or the scan period of 4i-1 bar in during the even frame of display panel and 4i bar sweep trace; The above-mentioned second phase is 4i-1 bar and the scan period of 4i bar sweep trace in during the odd-numbered frame of display panel, or the scan period of 4i-3 bar in during the even frame of display panel and 4i-2 bar sweep trace.
In one embodiment of this invention, the first above-mentioned data channel comprises first latch, second latch, digital analog converter and amplifier.The input end of first latch receives pixel data, and its trigger end couples control signal.The input end of second latch couples the output terminal of first latch, and its trigger end couples horizontal-drive signal.The input end of digital analog converter couples the output terminal of second latch.Amplifier input terminal couples the output terminal of digital analog converter, and its output terminal is coupled to first common ends of first selector.
The present invention proposes a kind of picture black frame insertion method, and it comprises the following steps.At first, the pixel data of first pixel group is given source electrode driving device in horizontal scan period transmission sweep trace.Then, the pixel data by source electrode driving device foundation first pixel group drives first pixel group.At last, according to black plug data second pixel group in horizontal scan period driven sweep line, wherein second pixel group is different from first pixel group by source electrode driving device.
In one embodiment of this invention; Above-mentioned picture black frame insertion method also comprises: the pixel data that transmits the 3rd pixel group in the sweep trace in horizontal scan period is given source electrode driving device; And drive the 3rd pixel group according to the pixel data of the 3rd pixel group by source electrode driving device, wherein the 3rd pixel group is different from first pixel group and second pixel group.
The present invention proposes a kind of display system, and it includes the display panel source electrode drive circuit.Source electrode drive circuit is coupled to display panel; Be used for exporting simultaneously black plug data and pixel data to display panel; So that display panel while display pixel data and black plug data at least one sweep trace; Wherein this source electrode drive circuit is that output pixel data is come first pixel group on the driven sweep line; And export the black plug data and come second pixel group on the driven sweep line, so that first pixel group and second pixel group difference display pixel data and black plug data, second pixel group is different from first pixel group.
In one embodiment of this invention, above-mentioned said the 3rd pixel group is non-conterminous for mutually.
In one embodiment of this invention, above-mentioned said first pixel group is non-conterminous for mutually, and above-mentioned said second pixel group is non-conterminous for mutually.
In one embodiment of this invention, above-mentioned said first pixel group is adjacent in twos, and said second pixel group is also adjacent in twos.
Based on above-mentioned; Display system of the present invention, source electrode driving device and picture black frame insertion method thereof; It is transmitted in the pixel data that needs demonstration in the sweep trace, and rest of pixels then utilizes the black plug data to drive, and making can while display pixel data and black plug data on the one scan line.By this, can utilize the mode of capable black plug to carry out picture black frame insertion,, can also reduce the frequency range of data transmission to improve the dynamic demonstration of picture.
For making the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and is described with reference to the accompanying drawings as follows.
Description of drawings
Figure 1A and Figure 1B are that the picture of conventional visual black frame inserting method shows synoptic diagram.
Fig. 2 A couples the display panel synoptic diagram for the source electrode driving device according to first embodiment of the invention.
Fig. 2 B, Fig. 2 C, Fig. 2 D and Fig. 2 E are partly pixel demonstration synoptic diagram of Fig. 2 A display panel.
Fig. 2 F is system's block schematic diagram of the data channel 210_1 of Fig. 2 A.
Fig. 3 A couples the display panel synoptic diagram for the source electrode driving device according to second embodiment of the invention.
Fig. 3 B, Fig. 3 C, Fig. 3 D and Fig. 3 E are partly pixel demonstration synoptic diagram of Fig. 3 A display panel.
Fig. 4 A couples the display panel synoptic diagram for the source electrode driving device according to third embodiment of the invention.
Fig. 4 B, Fig. 4 C and Fig. 4 D are partly pixel demonstration synoptic diagram of Fig. 4 A display panel.
Fig. 5 is picture black frame insertion method process flow diagram according to an embodiment of the invention.
Fig. 6 is picture black frame insertion method process flow diagram according to another embodiment of the present invention.
The reference numeral explanation
10: display panel
S
1, S
2, S
3, S
4, S
5, S
6: sweep trace
DL
1, DL
2, DL
3, DL
4, DL
5, DL
6, DL
7, DL
8, DL
(n-3), DL
(n-2), DL
(n-1), DL
n: data line
200,300,400: source electrode driving device
210_1、210_2、210_3、210_4、210_m-1、210_m、210_P-1、210_P：
Data channel
211,212: latch
213: digital analog converter
214, op1: amplifier
220_1,220_2,220_3,220_4,220_m-1,220_m, 310_1,310_2,310_3,310_4,310_m-1,310_m, 410_1,410_2,410_x: first selector
230_1,230_2,230_3,230_4,230_m-1,230_m, 320_1,320_2,320_3,320_4,320_m-1,320_m, 420_1,420_2,420_x: second selector
240: the black plug data line
D
Pixel: pixel data
D
Black: the black plug data
S
Hor: horizontal-drive signal
S
COL: control signal
S501, S502, S503, S601, S602, S603, S604, S605: the step of the picture black frame insertion method of the embodiment of the invention.
Embodiment
[first embodiment]
Fig. 2 A couples the display panel synoptic diagram for the source electrode driving device according to first embodiment of the invention.Please with reference to Fig. 2 A, in the present embodiment, source electrode driving device 200 couples display panel 10, and wherein display panel 10 has the multi-strip scanning line (like S
1And S
2) and n bar data line (like DL
1～DL
n).Source electrode driving device 200 comprises data channel (that is first data channel) 210_1～210_m, black plug data line 240, first selector 220_1～220_m and second selector 230_1～230_m, and wherein the black plug data line receives black plug data D through amplifier op1
Black, so that black plug data D to be provided
BlackTo corresponding data line, n and m are positive integer and are assumed to be 2m at this n.
Data channel 210_1～210_m receives pixel data D jointly
PixelIn first selector 220_1～220_m, be that example is explained with first selector 220_1 earlier.First end of first selector 220_1 is coupled to data line DL in the display panel 10
1(that is first data line), its second end is coupled to data line DL in the display panel 10
3(that is second data line), with and first common ends be coupled to the first data channel 210_1 output terminal.In second selector 230_1～230_m, same is that example is explained with second selector 230_1 earlier.First end of second selector 230_1 is coupled to data line DL
1, its second end is coupled to data line DL
3, with and common ends be coupled to black plug data line 240.And above-mentioned explanation can be considered the route of the data transmission of data channel 210_1.
In addition, see the route of the data transmission of data channel 210_2 again.First end of first selector 220_2 is coupled to data line DL in the display panel 10
2, its second end is coupled to data line DL in the display panel 10
4, with and first common ends be coupled to data channel 210_2 output terminal.First end of second selector 230_2 is coupled to data line DL
2, its second end is coupled to data line DL
4, with and common ends be coupled to black plug data line 240.And the route of the data transmission of data channel 210_3 can be similar with the route of the data transmission of data channel 210_1, and first end of its first and second selector switch and second end can couple data line DL respectively
5And DL
7And the route of the data transmission of data channel 210_4 can be similar with the route of the data transmission of data channel 210_2, and first end of its first and second selector switch and second end can couple data line DL respectively
6And DL
8
According to above-mentioned explanation; In source electrode driving device 200; The route of the data transmission of odd data passage can be similar in appearance to the route of the data transmission of data channel 210_1, and first end of its first and second selector switch and second end can couple two close odd data lines respectively.And the route of the data transmission of even data passage can be similar in appearance to the route of the data transmission of data channel 210_2, and first end of its first and second selector switch and second end can couple two close even data lines respectively.By this, can reduce the frequency range of data transmission.
(at this being first image duration example) during the first, first selector 220_1～220_m all is electrically connected to its first end with its first common ends, and second selector 230_1～230_m all is electrically connected to its second end with its common ends.That is data line DL
1, DL
2, DL
5, DL
6..., DL
(n-3)And DL
(n-2)Can receive pixel data, and make the pixel of these data lines normally to show.And remainder data line DL
3, DL
4, DL
7, DL
8..., DL
(n-1)And DL
nCan receive black plug data D
Black, and make the pixel of these data lines can show black plug, wherein the demonstration of this black plug can show specific grey-scale or black (that is black plug data D
BlackCan be specific grey-scale data or black data), present embodiment is not as limit.It shows that with reference to Fig. 2 B Fig. 2 B is a partly pixel demonstration synoptic diagram of Fig. 2 A display panel.Can see that by Fig. 2 B display panel 10 can show the normal demonstration of two row, show that again two row black plugs show, the normal demonstration of two row again, all the other partly then can be by that analogy.That is to say that each row pixel column of display panel 10 is display pixel data and black plug data simultaneously, and the normal pixel group that shows is first pixel group, shows that the pixel group of black plug is second pixel group.Symbol wherein "+" reach "-" polarity of represent pixel data, this area the technician can be according to its design change voluntarily, and do not limit the implementation of present embodiment with this.
And (is example with second image duration at this) during the second, second selector 220_1～220_m all is electrically connected to its second end with its first common ends, and second selector 230_1～230_m all is electrically connected to its first end with its common ends.That is data line DL
1, DL
2, DL
5, DL
6..., DL
(n-3)And DL
(n-2)Can receive black plug data D
Black, and make the pixel of these data lines can show black plug.And remainder data line DL
3, DL
4, DL
7, DL
8..., DL
(n-1)And DL
nCan receive pixel data, and make the pixel of these data lines normally to show.It shows that with reference to Fig. 2 C Fig. 2 C is a partly pixel demonstration synoptic diagram of Fig. 2 A display panel.Can be seen that by Fig. 2 C display panel 10 can show that two row black plugs show, shows that again two go normal the demonstration, two row black plugs show that all the other parts then can be by that analogy again.
And in the 3rd image duration; The action meeting of source electrode driving device 200 is identical with first image duration; And in the 4th image duration; The action meeting of source electrode driving device 200 is identical with the action of second image duration, thus do not give unnecessary details at this, and the action of source electrode driving device 200 then can the rest may be inferred can be learnt in remaining image duration.By this, can make display panel carry out picture black frame insertion, to improve the display quality of dynamic menu to go the mode of black plug.
In addition, see Fig. 2 A again, if reach the time set of the second phase between the change first phase, then the picture black frame insertion mode of display panel 10 also can change thereupon.At this, between the first phase can for display panel 10 at the sweep trace S that carries out in first image duration
1And S
2Scan period, and the action of its source electrode driving device 200 is identical with the explanation between the above-mentioned first phase, so repeat no more.And the second phase can for display panel 10 at the sweep trace S that carries out in first image duration
3And S
4Scan period, and the action of its source electrode driving device 200 is identical with the explanation of the above-mentioned second phase, so repeat no more.
Then, the sweep trace S in first each and every one image duration
5(not illustrating) and S
6The scan period of (not illustrating), the action of its source electrode driving device 200 and sweep trace S
1And S
2Scan period identical.Sweep trace S in first image duration
7(not illustrating) and S
8The scan period of (not illustrating), the action of its source electrode driving device 200 and sweep trace S
3And S
4Scan period identical.All the other sweep traces in first image duration then then push away with this.It shows that with reference to Fig. 2 D Fig. 2 D is a partly pixel demonstration synoptic diagram of Fig. 2 A display panel.Can see that by Fig. 2 D in first image duration, display panel 10 can be at sweep trace S
1And S
2Scan period show that two row are normal and show that show that again two row black plugs show, two row are normal again shows.Then, at sweep trace S
3And S
4Scan period show that two row black plugs show, show again that two row are normal and show that two row black plugs show again.Then, at sweep trace S
5And S
6Scan period show that two row are normal and show that show that again two row black plugs show, two row are normal again shows.The scan period of all the other sweep traces then analogizes and can learn according to above-mentioned in first image duration.
Then; In second image duration; Between its first phase and scan period of second phase corresponding scanning beam and first image duration on the contrary; So that the pixel that normally shows in first image duration is that black plug shows second image duration, and the pixel that first image duration, black plug showed is normal demonstration second image duration.It shows that with reference to Fig. 2 E Fig. 2 E is a partly pixel demonstration synoptic diagram of Fig. 2 A display panel.
In addition; The action meeting of source electrode driving device 200 is identical with first image duration in the 3rd image duration; The action meeting of source electrode driving device 200 is identical with second image duration in the 4th image duration; Then do not add at this and to give unnecessary details, and the action of source electrode driving device 200 can be analogized according to above-mentioned explanation and learnt in all the other image durations.
Fig. 2 F is system's block schematic diagram of the data channel 210_1 of Fig. 2 A.Please with reference to Fig. 2 F, in the present embodiment, data channel 210_1 comprises first latch 211, second latch 212, digital analog converter (Digital-to-Analog Converter, DAC) 213 and amplifier 214.The input end of first latch 211 receives pixel data D
Pixel, its trigger end couples control signal S
COLThe input end of second latch 212 couples the output terminal of first latch 211, and its trigger end couples horizontal-drive signal S
HorThe input end of digital analog converter 213 couples the output terminal of second latch 212.The input end of amplifier 214 couples the output terminal of digital analog converter 214, and its output terminal is coupled to first common ends of first selector 220_1.
What deserves to be mentioned is,, make second end even the first end sky of first and second selector switch (for example 220_m and 230_m) of back connect if the number of data lines n of display panel 10 and be not equal to 2m then disposes according to actual number of data lines in regular turn.Likewise, source electrode driving device 200 still can carry out black plug to the picture of display panel 10.
[second embodiment]
Fig. 3 A couples the display panel synoptic diagram for the source electrode driving device according to second embodiment of the invention.Please with reference to Fig. 2 A and Fig. 3 A, its maximum difference in, the first selector 310_1～310_m in the source electrode driving device 300 and second selector 320_1～320_m, wherein similar with Fig. 2 A embodiment element uses similar label.In first selector 310_1～310_m, be that example is explained with first selector 310_1 earlier.First end of first selector 220_1 is coupled to data line DL in the display panel 10
1(that is first data line), its second end is coupled to data line DL in the display panel 10
2(that is second data line), with and first common ends be coupled to the first data channel 210_1 output terminal.In second selector 320_1～320_m, same is that example is explained with second selector 230_1 earlier.First end of second selector 320_1 is coupled to data line DL
1, its second end is coupled to data line DL
2, with and common ends be coupled to black plug data line 240.And above-mentioned explanation can be considered the route of the data transmission of data channel 210_1.
In addition, see the route of the data transmission of data channel 210_2 again.First end of first selector 310_2 is coupled to data line DL in the display panel 10
3, its second end is coupled to data line DL in the display panel 10
4, with and first common ends be coupled to data channel 210_2 output terminal.First end of second selector 320_2 is coupled to data line DL
3, its second end is coupled to data line DL
4, with and common ends be coupled to black plug data line 240.And the route of the data transmission of data channel 210_3～210_m can be analogized according to above-mentioned explanation and learnt.First end and second end that mainly are first and second selector switch in the route of data transmission of data channel can couple adjacent data line respectively, and first and second selector switch in the route of the data transmission of different pieces of information passage couples different two adjacent data lines.By this, can reduce the frequency range of data transmission.
(at this being first image duration example) during the first, first selector 310_1～310_m all is electrically connected to its first end with its first common ends, and second selector 320_1～320_m all is electrically connected to its second end with its common ends.That is data line DL
1, DL
3, DL
5, DL
7..., DL (n-3) and DL (n-1) can receive pixel data, and makes the pixel of these data lines normally to show.And remainder data line DL
2, DL
4, DL
6, DL
8..., DL
(n-2)And DL
nCan receive black plug data D
Black, and make the pixel of these data lines can show black plug.It shows that with reference to Fig. 3 B Fig. 3 B is a partly pixel demonstration synoptic diagram of Fig. 3 A display panel.Can see that by Fig. 3 B display panel 10 can show that delegation normally shows, show that again delegation's black plug shows that delegation normally shows again, show that again delegation's black plug shows, shows so in regular turn.
And (is example with second image duration at this) during the second, first selector 310_1～310_m all is electrically connected to its second end with its first common ends, and second selector 320_1～320_m all is electrically connected to its first end with its common ends.That is data line DL
1, DL
3, DL
5, DL
7..., DL (n-3) and DL (n-1) can receive black plug data D
Black, and make the pixel of these data lines can show black plug.And remainder data line DL
2, DL
4, DL
6, DL
8..., DL
(n-2)And DL
nCan receive pixel data, and make the pixel of these data lines normally to show.It shows that with reference to Fig. 3 C Fig. 3 C is a partly pixel demonstration synoptic diagram of Fig. 3 A display panel.Can be seen that by Fig. 3 C display panel 10 can show that delegation's black plug shows, shows that again delegation normally shows, delegation's black plug shows again, shows that again delegation normally shows, shows so in regular turn.
And in the 3rd image duration; The action meeting of source electrode driving device 200 is identical with first image duration; And in the 4th image duration; The action meeting of source electrode driving device 200 is identical with the action of second image duration, thus do not give unnecessary details at this, and the action of source electrode driving device 200 then can the rest may be inferred can be learnt in all the other image durations.By this, can make display panel carry out picture black frame insertion, to improve the display quality of dynamic menu to go the mode of black plug.
In addition, because the polarity of pixel data is different, so the demonstration of the foregoing description also maybe be shown in Fig. 3 D and Fig. 3 E, Fig. 3 D and Fig. 3 E are partly pixel demonstration synoptic diagram of Fig. 3 A display panel.What deserves to be mentioned is,, make second end even the first end sky of first and second selector switch (for example 310_m and 320_m) of back connect if the number of data lines n of display panel 10 and be not equal to 2m then disposes according to real data line number in regular turn.Likewise, source electrode driving device 300 still can carry out black plug to the picture of display panel 10.
[the 3rd embodiment]
Fig. 4 A couples the display panel synoptic diagram for the source electrode driving device according to third embodiment of the invention.Please, wherein use identical label with the element of Fig. 2 A embodiment identical function with reference to Fig. 2 A and Fig. 4 A.In the present embodiment, source electrode driving device 400 comprises data channel 210_1～210_P, black plug data line 240, first selector 410_1～410_x and second selector 420_x, and wherein P, x and n are all a positive integer, and n is assumed to be 3x, and P then equals 2x.The black plug data line is in order to provide black plug data D
Black, wherein data channel 210_1～210_P receives pixel data D jointly
Pixel
In first selector 410_1～410_x, be that example is explained with first selector 410_1 earlier.First end of selector switch 410_1 is coupled to data line DL in the display panel 10
1, its second end is coupled to data line DL in the display panel 10
2, its 3rd end is couple to data line DL in the display panel 10
3, with and first common ends be coupled to data channel 210_1 (that is first data channel) output terminal, its second common ends is coupled to data channel 210_2 (that is second data channel) output terminal.And first end of selector switch 410_2 is coupled to data line DL in the display panel 10
4, its second end is coupled to data line DL in the display panel 10
5, its 3rd end is couple to data line DL in the display panel 10
6, with and first common ends be coupled to data channel 210_3 output terminal, its second common ends is coupled to data channel 210_4 output terminal.First selector 410_3～410_x then can learn by that analogy.
In second selector 420_1～420_x, be that example is explained with second selector 420_1 earlier equally.First end of second selector 420_1 is coupled to data line DL
1, its second end is coupled to data line DL
2, its 3rd end is coupled to data line DL
3, with and common ends be coupled to black plug data line 240.And first end of second selector 420_2 is coupled to data line DL
4, its second end is coupled to data line DL
5, its 3rd end is coupled to data line DL
6, with and common ends be coupled to black plug data line 240.Second selector 420_3～420_x then can learn by that analogy.By this, can reduce 1/3 of data transmission frequency range.
In first image duration (that is second phase); First selector 410_1～410_x all is electrically connected to its second end with its first common ends; First selector 410_1～410_x all is electrically connected to its 3rd end with its second common ends, and second selector 420_1～420_x all is electrically connected to its first end with its common ends.That is data line DL
2, DL
3, DL
5, DL
6..., DL
(n-1)And DL
nCan receive pixel data, and make the pixel of these data lines normally to show.And remainder data line DL
1, DL
4, DL
7(not illustrating) ..., DL
(n-2)Can receive black plug data D
Black, and make the pixel of these data lines can show black plug.It shows that with reference to Fig. 4 B Fig. 4 B is a partly pixel demonstration synoptic diagram of Fig. 4 A display panel.Can see that by Fig. 4 B display panel 10 can show that delegation's black plug shows, show that again two row show that normally delegation's black plug shows again, show the normal demonstration of two row again, show so in regular turn.
In second image duration (that is between first phase); First selector 410_1～410_x all is electrically connected to its first end with its first common ends; First selector 410_1～410_x all is electrically connected to its 3rd end with its second common ends, and second selector 420_1～420_x all is electrically connected to its second end with its common ends.That is data line DL
1, DL
3, DL
4, DL
6..., DL
(n-2)And DL
nCan receive pixel data, and make the pixel of these data lines normally to show.And remainder data line DL
2, DL
5, DL
8(not illustrating) ..., DL
(n-1)Can receive black plug data D
Black, and make the pixel of these data lines can show black plug.It shows that with reference to Fig. 4 C Fig. 4 C is a partly pixel demonstration synoptic diagram of Fig. 4 A display panel.Can see that by Fig. 4 C display panel 10 can show that delegation normally shows, show that again delegation's black plug shows, show that again two row normally show, show that again delegation's black plug shows, show that again delegation normally shows, show so in regular turn.
In the 3rd image duration (that is between third phase); First selector 410_1～410_x all is electrically connected to its first end with its first common ends; First selector 410_1～410_x all is electrically connected to its second end with its second common ends, and second selector 420_1～420_x all is electrically connected to its 3rd end with its common ends.That is data line DL
1, DL
2, DL
4, DL
5..., DL
(n-2)And DL
(n-1)Can receive pixel data, and make the pixel of these data lines normally to show.And remainder data line DL
3, DL
6, DL
9(not illustrating) ..., DL
nCan receive black plug data D
Black, and make the pixel of these data lines can show black plug.It shows that with reference to Fig. 4 D Fig. 4 D is a partly pixel demonstration synoptic diagram of Fig. 4 A display panel.Can be seen that by Fig. 4 D display panel 10 can show the normal demonstration of two row, show that again delegation's black plug shows, two row are normal again shows, shows delegation's black plug demonstration again, shows so in regular turn.
And in the 4th image duration; The action meeting of source electrode driving device 200 is identical with first image duration, and in the 5th image duration, the action meeting of source electrode driving device 200 is identical with the action of second image duration; And in the 6th image duration; The action meeting of source electrode driving device 200 is identical with the action of the 3rd image duration, thus do not give unnecessary details at this, and the action of source electrode driving device 200 then can the rest may be inferred can be learnt in all the other image durations.
What deserves to be mentioned is,, make the 3rd end, second end even the first end sky of first and second selector switch (for example 410_x and 420_x) of back connect if the number of data lines n of display panel 10 and be not equal to 3x then disposes according to real data line number in regular turn.Likewise, source electrode driving device 400 still can carry out black plug to the picture of display panel 10.
In addition, can converge whole by the foregoing description is picture black frame insertion method.Fig. 5 is picture black frame insertion method process flow diagram according to an embodiment of the invention.Please with reference to Fig. 5, this picture black frame insertion method comprises the following steps.At first, in step S501, transmit the pixel data of first pixel group in the sweep trace in horizontal scan period and give source electrode driving device.In step S502, drive first pixel group according to the pixel data of first pixel group by source electrode driving device.In step S503, according to black plug data second pixel group in horizontal scan period driven sweep line, wherein second pixel group is different from first pixel group by source electrode driving device.Note that at this above-mentioned steps S502 and S503 can carry out simultaneously, that is the pixel data of same horizontal scan period and black plug data can write the corresponding pixel column of same sweep trace simultaneously.
According to said method, if the pixel in first pixel group is adjacent in twos, and the pixel in second pixel group also is adjacent in twos, and then the display frame of display panel can be shown in Fig. 2 B～Fig. 2 E.If the pixel in first pixel group is non-conterminous for mutually, and the pixel in second pixel group also is mutual non-conterminous words, and then the display frame of display panel can be shown in Fig. 3 B～Fig. 3 E.In addition, implement in the row at some, step S502 is executed in step S503 earlier, and in other embodiment, step S503 can carry out prior to step S502, or as previously mentioned, step S502 and S503 can carry out simultaneously.
Fig. 6 is picture black frame insertion method process flow diagram according to another embodiment of the present invention.Please with reference to Fig. 6, this picture black frame insertion method comprises the following steps.At first, in step 601, transmit the pixel data of first pixel group in the sweep trace in horizontal scan period and give source electrode driving device.In step S602, transmit the pixel data of the 3rd pixel group in the sweep trace in horizontal scan period and give source electrode driving device.In step S603, drive first pixel group according to the pixel data of first pixel group by source electrode driving device.In step S604, according to black plug data second pixel group in horizontal scan period driven sweep line, wherein second pixel group is different from first pixel group by source electrode driving device.In step S605, drive the 3rd pixel group by source electrode driving device according to the pixel data of the 3rd pixel group, wherein the 3rd pixel group is different from first pixel group and second pixel group.Wherein, above-mentioned steps S603, S604 and S605 can carry out simultaneously, that is the pixel data of same horizontal scan period and black plug data can write the corresponding pixel column of same sweep trace simultaneously.
According to said method; If the pixel in first pixel group is non-conterminous for mutually; And the pixel in second pixel group is also non-conterminous for mutually, and the pixel in the 3rd pixel group also is mutual non-conterminous words, and then the display frame of display panel can be shown in Fig. 4 B～Fig. 3 D.In addition, implement in the row at some, step S603 can be executed in step S604 and S605 earlier, and in other embodiment, step S605 can carry out prior to step S603.
In sum; The source electrode driving device of the embodiment of the invention and picture black frame insertion method thereof; It is transmitted in the pixel data that needs demonstration in the sweep trace, and rest of pixels then utilizes the black plug data to drive, and makes that display panel can while display pixel data and black plug data at least one sweep trace.By this, can utilize the mode of capable black plug to carry out picture black frame insertion,, more can reduce the frequency range of data transmission to improve the dynamic demonstration of picture.
Though the present invention discloses as above with embodiment; Right its is not in order to limit the present invention; Those skilled in the art can do some changes and retouching under the premise without departing from the spirit and scope of the present invention, so protection scope of the present invention is as the criterion with claim of the present invention.
Claims (23)
1. a source driving device comprises:
One first data channel is used to provide a video data;
One black plug data line is in order to provide black plug data;
One first selector; Its first end is coupled to one first data line in the display panel; Its second end is coupled to one second data line in this display panel; With and first common ends be coupled to this first data channel, wherein this first selector is electrically connected to its first end with its first common ends between a first phase, and in this first selector of a second phase its first common ends is electrically connected to its second end; And
One second selector; Its first end is coupled to this first data line; Its second end is coupled to this second data line; With and common ends be coupled to this black plug data line, wherein this second selector is electrically connected to its second end with its common ends between this first phase, and in this second selector of this second phase its common ends is electrically connected to its first end.
2. source electrode driving device as claimed in claim 1 also comprises:
One second data channel;
Wherein this first selector also comprises one second common ends and one the 3rd end; The 3rd end of this first selector is coupled to one the 3rd data line in this display panel; Its second common ends is coupled to the output terminal of this second data channel; Wherein between this first phase and should this first selector of the second phase its second common ends be electrically connected to its 3rd end, and this first selector is electrically connected to its first common ends its first end and its second common ends is electrically connected to its second end between a third phase.
3. source electrode driving device as claimed in claim 2; Wherein this second selector also comprises one the 3rd end; The 3rd end of this second selector electrically connects the 3rd data line, and wherein this second selector is electrically connected to its 3rd end with its common ends between this third phase.
4. source electrode driving device as claimed in claim 3 should be 3i-1 image duration of this display panel between the first phase wherein, and i is a positive integer.
5. source electrode driving device as claimed in claim 4 wherein should be 3i-2 image duration of this display panel the second phase.
6. source electrode driving device as claimed in claim 5 wherein should be 3i image duration of this display panel between the third phase.
7. source electrode driving device as claimed in claim 1, wherein should between the first phase be an odd-numbered frame of this display panel during.
8. source electrode driving device as claimed in claim 7, wherein should be an even frame of this display panel the second phase during.
9. source electrode driving device as claimed in claim 1; Wherein should between the first phase 4i-3 bar and the scan period of 4i-2 bar sweep trace in during the odd-numbered frame of this display panel, or the 4i-1 bar in during the even frame of this display panel and the scan period of 4i bar sweep trace.
10. source electrode driving device as claimed in claim 9; Wherein should be 4i-1 bar and the scan period of 4i bar sweep trace in during this odd-numbered frame of this display panel the second phase, or the 4i-3 bar in during this even frame of this display panel and the scan period of 4i-2 bar sweep trace.
11. source electrode driving device as claimed in claim 1, wherein this first data channel comprises:
One first latch, its input end receives a pixel data, and its trigger end couples a control signal;
One second latch, its input end couples the output terminal of this first latch, and its trigger end couples a horizontal-drive signal;
One digital analog converter, its input end couples the output terminal of this second latch; And
One amplifier, its input end couples the output terminal of this digital analog converter, and its output terminal is coupled to first common ends of this first selector.
12. a picture black frame insertion method comprises:
Transmit the pixel data of one first pixel group in the one scan line in a horizontal scan period and give the one source pole drive unit;
By this source electrode driving device this first pixel group of pixel data driving according to this first pixel group; And
Drive in this sweep trace one second pixel group according to black plug data in this horizontal scan period by this source electrode driving device, wherein this second pixel group is different from this first pixel group.
13. picture black frame insertion method as claimed in claim 12 also comprises:
Transmit the pixel data of one the 3rd pixel group in this sweep trace in this horizontal scan period and give this source electrode driving device; And
By pixel data driving three pixel group of this source electrode driving device according to the 3rd pixel group, wherein the 3rd pixel group is different from this first pixel group and this second pixel group.
14. picture black frame insertion method as claimed in claim 13, wherein the pixel in the 3rd pixel group is non-conterminous mutually each other.
15. picture black frame insertion method as claimed in claim 12, wherein the pixel in this first pixel group is non-conterminous mutually each other.
16. picture black frame insertion method as claimed in claim 15, wherein the pixel in this second pixel group is non-conterminous mutually each other.
17. picture black frame insertion method as claimed in claim 12, wherein the pixel in this first pixel group is adjacent in twos.
18. picture black frame insertion method as claimed in claim 17, wherein the pixel in this second pixel group is adjacent in twos.
19. a display system, it includes:
One display panel; And
The one source pole driving circuit; Be coupled to this display panel; Be used for exporting simultaneously black plug data and a pixel data to this display panel; So that this display panel shows this pixel data and this black plug data simultaneously at least one sweep trace, wherein this source electrode drive circuit system this pixel data of output drives one first pixel group on the said sweep trace, and exports these black plug data and drive one second pixel group on the said sweep trace; So that this first pixel group and this second pixel group show this pixel data and this black plug data respectively, and wherein this first pixel group and this second pixel group are different each other.
20. display system as claimed in claim 19, wherein the pixel of this first pixel group is non-conterminous mutually.
21. display system as claimed in claim 19, wherein the pixel in this first pixel group is adjacent in twos.
22. display system as claimed in claim 19, wherein the pixel in this second pixel group is non-conterminous mutually each other.
23. display system as claimed in claim 19, wherein the pixel in this second pixel group is adjacent in twos each other.
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| CN1797527A (en) * | 2004-12-24 | 2006-07-05 | 群康科技(深圳)有限公司 | Method for driving LCD faceplate in active matrix |
| CN101308632A (en) * | 2007-05-14 | 2008-11-19 | 奇美电子股份有限公司 | Liquid crystal display and driving method thereof |
| CN101315748A (en) * | 2007-05-31 | 2008-12-03 | 中华映管股份有限公司 | Driving mechanism and method of display equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1797527A (en) * | 2004-12-24 | 2006-07-05 | 群康科技(深圳)有限公司 | Method for driving LCD faceplate in active matrix |
| CN101308632A (en) * | 2007-05-14 | 2008-11-19 | 奇美电子股份有限公司 | Liquid crystal display and driving method thereof |
| CN101315748A (en) * | 2007-05-31 | 2008-12-03 | 中华映管股份有限公司 | Driving mechanism and method of display equipment |
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