CN101968951A - Time sequence controller, display and charge sharing function control method thereof - Google Patents
Time sequence controller, display and charge sharing function control method thereof Download PDFInfo
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- CN101968951A CN101968951A CN2009101646956A CN200910164695A CN101968951A CN 101968951 A CN101968951 A CN 101968951A CN 2009101646956 A CN2009101646956 A CN 2009101646956A CN 200910164695 A CN200910164695 A CN 200910164695A CN 101968951 A CN101968951 A CN 101968951A
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Abstract
The invention discloses a display, which comprises a display panel, a time sequence controller and a source driver. The time sequence controller analyzes gray scale distribution of video data to acquire an analysis result. The source driver is coupled between the display panel and the time sequence controller, and drives the display panel to display corresponding pictures according to the video data provided with the time sequence controller. The time sequence controller enables or disables the charge sharing function of the source driver according to the analysis result. Therefore, the charge sharing function is selectively enabled in different charge sharing periods. Compared with the prior art, the invention can reduce the power consumption and the working temperature of the source driver.
Description
Technical field
The invention relates to a kind of time schedule controller, and particularly share the time schedule controller and the method thereof of function, be used for display relevant for a kind of electric charge of Controlling Source driver.
Background technology
Flat display apparatus, for example (thin film transistor-liquid crystal display TFT-LCD), is planned to be used for replacing conventional cathode ray tube (cathode ray tube, CRT) display device to Thin Film Transistor-LCD.Compare with traditional C RT display, the TFT-LCD device has such as quite low operating voltage, low power consumption, advantage such as little and thin and in light weight.
Figure 1A illustrates a conventional liquid crystal 100.LCD 100 comprises time schedule controller TCON, source electrode driver SD and display panel 130.Wherein, source electrode driver SD comprises a plurality of source electrode driver elements 120 and 121.Each source drive unit (for example the source drive unit 120) comprises relative interface circuit 122, digital to analog converter (DAC) 124 and output buffer 126.Conventional liquid crystal 100 use time schedule controller TCON produce various control signal to source electrode driver SD with gate driver (not illustrating), use Controlling Source driver SD with the running of gate driver (not illustrating).Under the control of control signal, gate drivers (not illustrating) drives each gate line in regular turn, then source drive unit 120 and 121 output voltage V 136 and the V137 among the source electrode driver SD.The running details of each source drive unit is well known to those skilled in the art, and repeats no more herein.
In order to solve the too big problem of above-mentioned source drive unit 120 power consumptions, Fig. 1 C has illustrated a traditional monitor 150, and it comprises that the electric charge sharing circuit is to reduce source drive unit (for example source drive unit 160 and 170) in order to drive the amplitude of oscillation of respective data lines voltage.The display 150 of Fig. 1 C comprises time schedule controller TCON, source electrode driver SD and display panel 180, wherein, source electrode driver SD comprises a plurality of driver elements (for example driver element 160 and 170), switch 172,174 and 176 (just electric charge is shared circuit).Each source drive unit (for example the source drive unit 160) comprises interface circuit 162, DAC 164 and output buffer 166.In LCD 150, time schedule controller TCON produces a plurality of source electrode driver SD and gate drivers (not illustrating) of controlling signal to, and uses Controlling Source driver SD and gate drivers (not illustrating).Under the control of control signal, gate drivers (not illustrating) drives each gate line in regular turn, and source drive unit 160 and 170 output voltage V 186 and V187.
Fig. 1 D is among Fig. 1 C, the signal timing diagram of even data line and odd data line (this sentences data line 186 and 187 and illustrates).T1 during electric charge is shared, switch 172 and 176 is in the OFF state, and switch 174 is in the ON state, owing to the reason of short circuit makes that producing electric charge between the data line 186 and 187 shares.Therefore, t1 during electric charge is shared, data line 186 and 187 voltage V186 and V187 can converge to and be approximately common electric voltage Vcom, running that electric charge shares function that Here it is.After t1 finishes during electric charge is shared, then carry out t2 during the common driving, during this, switch 172 and 176 is in the ON state, and switch 174 is in the OFF state, makes source drive unit 160 and 170 driving data lines 186 and 187.This details that drives running is well known to those skilled in the art, and repeats no more herein.
Can learn from Fig. 1 D, via the running that electric charge is shared function, t1 during electric charge is shared, the voltage level of data line 186 is pulled to common electric voltage Vcom in advance.Therefore, t2 during common driving, source drive unit 160 is reduced in order to the amplitude of oscillation SW1C of the voltage of driving data lines 186.After t2 during the common driving finishes, then carry out electric charge share during t3, the internal circuit of display 150 begins operating charge again and shares function, so same operation of repeatable operation.By the running that electric charge is shared function, the source drive unit significantly reduces in order to the amplitude of oscillation of the voltage of driving data lines, thereby reduces the power consumption of source drive unit and reach the function of power saving.
Yet, with row counter-rotating (column inversion) driving method is example, when white picture is displayed on traditional monitor 150 as Fig. 1 C, supposes to have closed electric charge and shares function, because video data does not change, data line 186 and 187 voltage V186 and V187 are shown in Fig. 1 E.If voltage sharing circuit (meaning switch 172,174 and 176 or the like) during electric charge is shared t1 and t3 still work (just started electric charge and shared function), have a kind of undesirable phenomenon so, the switching phenomenon that it is similar to as Fig. 1 F occurs in voltage V186 and V187.This expects that outer situation can cause the working temperature of source electrode driver SD to raise.Therefore, need suitable display device of design to solve this problem.
Summary of the invention
The invention provides a kind of display, in display, share function, with power consumption of saving source electrode driver and the working temperature that reduces source electrode driver by the electric charge of time schedule controller Controlling Source driver.
The present invention also provides a kind of time schedule controller, and the electric charge that is used for display Controlling Source driver is shared function, with power consumption of saving source electrode driver and the working temperature that reduces source electrode driver.
The present invention also provides a kind of a kind of electric charge of source electrode driver to share control method, is used for display, with power consumption of saving source electrode driver and the working temperature that reduces source electrode driver.
For solving the problem of prior art, the invention provides a kind of display, comprise display panel, time schedule controller and source electrode driver.The gray-scale distribution of described time schedule controller analysis video data obtains analysis result by this.Described source electrode driver is coupled between described display panel and the described time schedule controller, and the described video data in order to provide according to described time schedule controller drives described display panel to show corresponding picture.Wherein, also according to described analysis result, the electric charge of activation (enable) or the described source electrode driver of disabled (disable) is shared function to described time schedule controller.
For solving the problem of prior art, the invention provides a kind of time schedule controller.Described time schedule controller is used for display, exports synchronizing signal and the source electrode driver of the vision signal that is loaded with described video data to described display, and analyzes the gray-scale distribution of described video data, uses and obtains analysis result.Described time schedule controller is according to described analysis result, and the electric charge of activation or the described source electrode driver of disabled is shared function.
The present invention also provides a kind of electric charge of one source pole driver to share function control method.Described method comprises the gray-scale distribution of using time schedule controller analysis video data, to obtain analysis result.And according to described analysis result, the described electric charge of the described source electrode driver of activation or the described display of disabled is shared function.
Time schedule controller provided by the invention is shared function control method and is controlled the described electric charge of the described source electrode driver of described display and share function with electric charge, to reduce the power consumption and the working temperature of source electrode driver.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
Description of drawings
Figure 1A is a kind of traditional LC D.
Figure 1B is a signal timing diagram, has illustrated the signal sequence of Figure 1A even data line and odd data line.
Fig. 1 C is a kind of traditional display.
Fig. 1 D is a signal timing diagram, has illustrated the signal sequence of Fig. 1 C even data line and odd data line.
Fig. 1 E is a signal timing diagram, has illustrated Fig. 1 C at white picture and when not having electric charge to share function, the signal sequence of even data line and odd data line.
Fig. 1 F is a signal timing diagram, has illustrated Fig. 1 C at white picture and when having electric charge to share function, the signal sequence of even data line and odd data line.
Fig. 2 is the simplification circuit block diagram according to the electronic display unit of one embodiment of the invention.
Fig. 3 is in Fig. 2 time schedule controller, according to the simplification circuit block diagram of the data analysis unit of one embodiment of the invention.
Fig. 4 is in Fig. 2 time schedule controller, according to the simplification circuit block diagram of the data analysis unit of another embodiment of the present invention.
Fig. 5 is the transmission mode of video data.
Fig. 6 is the simplification circuit block diagram according to the electronic display unit of one embodiment of the invention.
Fig. 7 is according to the embodiment of the invention, and signal waveform is sent to the sequential chart of source electrode driver from time schedule controller.
[main element label declaration]
100,150: display
120,121,160,170: the source drive unit
122,162: interface circuit
124,164: digital to analog converter
126,166: output buffer
130,180,210,610: display panel
131,151: sweep trace
132: transistor
134: liquid crystal capacitance
136,137,186,187: data line
139,140,239,240: sub-pixel unit
172,174,176: switch
200,600: electronic display unit
300,400,620: data analysis unit
330,430: comparing unit
310,410: counting unit
412: receiver
414: the sequence parallel converters
416a, 416b: counter
The 418:AND door
420: working storage
CLK: clock signal
DATA1: video data
DATA2, DD0-DD3: vision signal
LP: electric charge sharing model signal
PA, PB: data are right
SD: source electrode driver
TCON: time schedule controller
TP1: synchronizing signal
Vcom: common electric voltage
X, Y: output result
Embodiment
Fig. 2 is the simplification circuit block diagram according to the electronic display unit of one embodiment of the invention.In present embodiment, electronic display unit 200 is TFT-LCD.Illustrate as Fig. 2, time schedule controller TCON receiving video data DATA1, wherein, the gray-scale distribution of time schedule controller TCON analysis video data DATA1.In present embodiment, time schedule controller TCON obtains analysis result, its corresponding electric charge sharing model signal LP.Obtain after the analysis result, the vision signal DATA2 that time schedule controller TCON transmits electric charge sharing model signal LP, a synchronous signal TP1 and is loaded with video data DATA1 is to source electrode driver SD.Source electrode driver SD herein is coupled between display panel 210 and the time schedule controller TCON, and the vision signal DATA2 that provides in order to foundation time schedule controller TCON shows corresponding picture.
This must see about in the electronic display unit 200, and time schedule controller TCON is according to the logic level of electric charge sharing model signal LP, and the electric charge of activation or disabled source electrode driver SD is shared function.Therefore, electric charge is shared function and optionally is enabled during different electric charges are shared.Present embodiment is controlled electric charge with TFT-LCD and electric charge sharing model signal LP, and to share function be example, is not in order to restriction the present invention.
Fig. 3 is among Fig. 2 time schedule controller TCON, according to the simplification circuit block diagram of the data analysis unit 300 of one embodiment of the invention.In present embodiment, data analysis unit 300 comprises counting unit 310, working storage 320 and comparing unit 330, in order to the gray-scale distribution of performance analysis video data DATA1.For example, when video data DATA 1 is sent to counting unit 310, the highest significant position (MSB) of counting unit 310 counting video data DATA1.If the logic level of MSB is a high logic level, for example use " 1 " to represent, the amount of counting unit 310 counting MSB logic levels obtains output X as a result from counting unit 310 by this so.Output X as a result then is temporarily stored in working storage 320.Simultaneously, output X as a result is sent to comparing unit 330, and counting unit 310 is reset during one with working storage 320.After resetting, counting unit 310 continues the highest significant position (MSB) of counting video data DATA1 during next, and another output of counting unit 310 as a result Y to be sent to working storage 320 temporary.Simultaneously, counting unit 310 also transmit output as a result Y to comparing unit 330, in order to X and a GTG threshold value (threshold gray level value) Z make comparisons as a result with previous output.According to a comparative result, comparing unit 330 output charge sharing model signal LP also determine the logic level of electric charge sharing model signal LP.
In addition, comparing unit 330 output relatively X is as a result represented the gray-scale distribution of video data DATA1 at first sweep trace (not illustrating) and second sweep trace (not illustrating) respectively with Y, and GTG threshold value Z is then relevant with the GTG threshold level.For example, if the gray scale level of video data DATA1 is 0 to 255, so preceding 50% gray scale level is 0 to 127 (image than dark areas), and then 50% gray scale level is 128 to 255 (image than bright area).Therefore, GTG threshold value Z is 127 or 128.Above-mentioned high level MSB is in the brighter pixel of the gray scale level correspondence one of this expression video data DATA1.That is to say, if output as a result X (mean that X＞Z), that is illustrated in first sweep trace, the gray-scale distribution of video data DATA1 is brighter greater than GTG threshold value Z.In other words, if output as a result Y greater than output as a result X (mean Y＞X), that gray-scale distribution of video data DATA1 that is illustrated in second sweep trace is also brighter than the gray-scale distribution of the video data DATA1 of first sweep trace.
Must be careful the corresponding gray scale level of GTG threshold value Z that present embodiment mentions and be 0 to 255 preceding 50% gray scale level and be regarded as specific embodiment with back 50% gray scale level.Any those skilled in the art, all can adjust above-mentioned preceding 50% gray scale level and back 50% gray scale level becomes gray scale level of the gray scale level of preceding 60% gray scale level and back 40% or preceding 40% gray scale level and back 60% or the like.Therefore, above-mentioned specific embodiment is not in order to limit the present invention.
Please refer to Fig. 2 and Fig. 3, by top explanation as can be known, if the analysis result of taking from data analysis unit 300 for output as a result Y more than or equal to output X (Y 〉=X) just as a result, the logic level that is sent to the electric charge sharing model signal LP of source electrode driver SD by display panel 210 is a high logic level so, make the electric charge of source electrode driver SD share function during an electric charge is shared, by the logic level disabled of time schedule controller TCON according to electric charge sharing model signal LP.Similarly, if analysis result for output as a result Y less than output X and greater than GTG threshold value Z (just Y＜X and Y＞Z) as a result, the logic level of electric charge sharing model signal LP is a high logic level so, makes time schedule controller TCON disabled (closing) electric charge share function.On the contrary, if analysis result for output as a result Y less than output X and be less than or equal to GTG threshold value Z (just Y＜X and Y≤Z) as a result, the logic level of electric charge sharing model signal LP is a low logic level so, make time schedule controller TCON according to the logic level of electric charge sharing model signal LP, the activation electric charge is shared function.
Therefore, analyze the gray-scale distribution of vision signal DATA1 in any two sweep traces of display panel 210 by said method, time schedule controller TCON output charge sharing model signal LP is to source electrode driver SD, and according to the logic level of electric charge sharing model signal LP during different electric charges are shared optionally the electric charge of activation source electrode driver SD share function.In addition, in present embodiment, the data transfer interface between time schedule controller TCON and the source electrode driver SD, for example be dwindle the swing differential signal pattern (Reduced Swing Differential signaling, RSDS).
Fig. 4 illustrates among the time schedule controller TCON of Fig. 2, according to the simplification circuit block diagram of the data analysis unit 400 of another embodiment of the present invention.Fig. 5 is the data-transmission mode of video data DATA1.In present embodiment, video data DATA1 is right via two data, as first data to PA and second data to PB, be sent to the data analysis unit 400 among the time schedule controller TCON.As shown in Figure 5, herein first data PA and second data are all got 8 positions to PB is example.Please merge with reference to Fig. 4 and Fig. 5, receiver in the data analysis unit 400 412 receive first data to PA and second data to PB, and be sent to sequence parallel converters 414.Sequence parallel converters 414 then with first data to PA and second data to PB, convert panel data to from sequence data, and be sent to the first counter 416a and the second counter 416b respectively.Receive first data to after the PA, first counter 416a counting and the high level MSB of first data to the relevant panel data of PA.When the count results of the first counter 416a during greater than GTG threshold value Z, the first counter 416a transmits high logic level to logic gate 418.At this moment, if the second counter 416b output and second data to the relevant count results of PB also greater than GTG threshold value Z, then second counter 416b transmission high logic level is to logic gate 418.
When the first logical consequence X is that the high logic level and the second logical consequence Y are when being low logic level, the gray-scale distribution of this expression video data DATA1 is brighter than second sweep trace (not illustrating) at first sweep trace (not illustrating), and therefore comparing unit 430 exports the electric charge sharing model signal LP of low logic level to source electrode driver SD.Its result causes the low logic level of time schedule controller TC0N according to electric charge sharing model signal LP, and the electric charge of activation source electrode driver SD is shared function.Present embodiment it is noted that, as the first logical consequence X and the second logical consequence Y during in other situation, and the electric charge sharing model signal LP of comparing unit 430 output high logic levels.Therefore, come any two sweep traces of analysis chart 2 display panels 210 by said method, the gray-scale distribution of its vision signal DATA1, time schedule controller TCON is during different electric charges are shared, foundation is from the logic level of the electric charge sharing model signal LP of time schedule controller TCON, and optionally the electric charge of activation source electrode driver SD is shared function.Time schedule controller TCON is in order to the data analysis unit of the gray-scale distribution of performance analysis video data DATA1, and it has multiple implementation, particularly counting unit and data-transmission mode.The square design drawing that Fig. 2,3 and 4 illustrates only is used for realizing embodiments of the invention for the persond having ordinary knowledge in the technical field of the present invention, is not in order to limit the present invention.
Fig. 6 is the simplification calcspar of the electronic display unit of one embodiment of the invention.Please refer to Fig. 6, the electronic display unit 200 of the electronic display unit 600 similar previous embodiment of this enforcement, its difference is that the time schedule controller TCON of present embodiment also comprises data recombination unit 630.Data recombination unit 630 couples data analysis unit 620, and wherein data recombination unit 630 is with the electric charge sharing model signal LP and the video data DATA1 reorganization of data analysis unit 620 outputs, to produce vision signal DD0-DD3.In present embodiment, electric charge sharing model signal LP is incorporated in the vision signal DD0-DD3, makes the electric charge of source electrode driver SD share function and is enabled or disabled according to vision signal DD0-DD3.
Illustrate as Fig. 6, in this embodiment, a plurality of signals (being synchronizing signal TP1, clock signal clk and vision signal DD0-DD3) are transferred into source electrode driver SD from time schedule controller TCON.Present embodiment only uses vision signal DD0-DD3 in order to simplify, but this simplification does not limit the present invention.
Fig. 7 is according to the embodiment of the invention, and signal waveform is sent to the sequential chart of source electrode driver SD from time schedule controller TCON.A plurality ofly be used for adjusting the setting signal that electronic display unit 600 sets and be transferred into source electrode driver SD.
After output synchronizing signal TP1, time schedule controller TCON transmits the signal of the pixel that is used for driving display panel 610 to source electrode driver SD.Based on power saving, signal (as shown in Figure 7) during T1 is maintained at 0 (low level just).During T2, vision signal DD0-DD3 comprises that initial pulse style STH (being data sequence " 1-1-0-1 " at present embodiment for example) is transferred into source electrode driver SD.Initial pulse style STH notification source driver SD receives setting signal and display data signal, and wherein display data signal is in order to drive the pixel of display panel 610.After output initial pulse style STH, time schedule controller TCON T3 during a setting transmits setting signal to source electrode driver SD, and electronic display unit 600 can be set according to setting signal.
T3 during setting, a plurality of setting signals in vision signal DD0-DD3 are sent to source electrode driver SD from time schedule controller TCON.For instance, the setting signal that T3 is transmitted during setting comprises DIR, POL, VB1, RS, FME, MODE1/MODE2, VA0, VA1, VB0 and particularly electric charge sharing model signal LP.The above results makes time schedule controller TCON during different electric charges are shared, logic level according to electric charge sharing model signal LP, optionally the electric charge of activation source electrode driver SD is shared function, and wherein electric charge sharing model signal LP is in the vision signal from time schedule controller TCON.The transfer sequence of setting signal is understood different at other embodiment of the present invention, and the quantity of setting signal designs according to specific source electrode driver SD and time schedule controller TCON and changes.
With respect to foregoing, another embodiment of the present invention provides a kind of method, in an electronic display unit, shares function in order to the electric charge of Controlling Source driver.This electric charge is shared control method and is comprised: (a) by using the gray-scale distribution of time schedule controller TCON analysis video data DATA1, to obtain analysis result; (b) according to analysis result, the electric charge of the source electrode driver of activation or disabled electronic display unit is shared function.
In sum, the electronic display unit in the embodiment of the invention, the gray-scale distribution of utilizing time schedule controller analysis video data is to obtain analysis result.Time schedule controller is then according to analysis result, and the electric charge of the source electrode driver of activation or disabled electronic display unit is shared function.In one embodiment, time schedule controller is according to the logic level of electric charge sharing model signal, and the electric charge of activation or disabled source electrode driver is shared function.In another embodiment, time schedule controller is according to the vision signal that is loaded with electric charge sharing model signal, and the electric charge of activation or disabled source electrode driver is shared function.Therefore, electric charge is shared function and is enabled during different electric charges is shared, and compared to prior art, can reduce the power consumption and the working temperature of source electrode driver.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the claim scope person of defining.
Claims (17)
1. display comprises:
Display panel;
Time schedule controller in order to the gray-scale distribution of analysis video data, is obtained analysis result by this; And
Source electrode driver is coupled between this display panel and this time schedule controller, and in order to drive this display panel, this video data according to this time schedule controller provides shows corresponding picture;
Wherein this time schedule controller is according to this analysis result, and the electric charge of activation or this source electrode driver of disabled is shared function.
2. display according to claim 1, wherein this time schedule controller comprises data analysis unit, in order to the gray-scale distribution of this video data of performance analysis, and output charge sharing model signal, and the logic level that determines this electric charge sharing model signal according to this analysis result.
3. display according to claim 2, wherein this data analysis unit is exported this electric charge sharing model signal to this source electrode driver, and this time schedule controller is shared function according to this logic level activation of this electric charge sharing model signal or this electric charge of this source electrode driver of disabled.
4. display according to claim 2, wherein this time schedule controller also comprises the data recombination unit, this data analysis unit is exported this electric charge sharing model signal to this data recombination unit, and this data recombination unit recombinate this electric charge sharing model signal and this video data use producing vision signal and exporting this source electrode driver to.
5. display according to claim 4, wherein this vision signal is exported to this source electrode driver in this data recombination unit, and this time schedule controller foundation is loaded with this vision signal activation of this electric charge sharing model signal or this electric charge of this source electrode driver of disabled is shared function.
6. display according to claim 2, wherein this data analysis unit is analyzed the logic level of this video data one highest significant position, uses the gray-scale distribution that obtains this video data.
7. display according to claim 6, wherein this data analysis unit comprises:
Counting unit in order to counting the quantity of this logic level of this highest significant position in this video data, and is exported count results during one;
Working storage, the input end of this working storage couples the output terminal of this counting unit, and wherein temporary the and output of this working storage one this count results during previous is as previous count results; And
Comparing unit couples the output terminal of this working storage and this counting unit, in order to the output result of this working storage and this counting unit relatively, uses and obtains this analysis result.
8. time schedule controller, be used for the gray-scale distribution of display with the analysis video data, use and obtain analysis result, and output synchronizing signal and the vision signal that is loaded with this video data be to source electrode driver, and this time schedule controller is shared function according to the electric charge of this analysis result activation or this source electrode driver of disabled.
9. time schedule controller according to claim 8, wherein this time schedule controller comprises data analysis unit, in order to the gray-scale distribution of this video data of performance analysis, and output charge sharing model signal, and the logic level that determines this electric charge sharing model signal according to this analysis result.
10. time schedule controller according to claim 9, wherein this data analysis unit is exported this electric charge sharing model signal to this source electrode driver, and this time schedule controller is shared function according to this logic level activation of this electric charge sharing model signal or this electric charge of this source electrode driver of disabled.
11. time schedule controller according to claim 9, wherein this time schedule controller also comprises the data recombination unit, this data analysis unit is exported this electric charge sharing model signal to this data recombination unit, and this data recombination unit recombinate this electric charge sharing model signal and this video data use producing this vision signal.
12. time schedule controller according to claim 11, wherein this vision signal is exported to this source electrode driver in this data recombination unit, and this time schedule controller foundation is loaded with this vision signal activation of this electric charge sharing model signal or this electric charge of this source electrode driver of disabled is shared function.
13. time schedule controller according to claim 9, wherein this data analysis unit is analyzed the logic level of highest significant position in this video data, uses the gray-scale distribution that obtains this video data.
14. time schedule controller according to claim 13, wherein this data analysis unit comprises:
Counting unit in order to counting the quantity of this logic level of highest significant position in this video data, and is exported count results during one;
Working storage, the input end of this working storage couples the output terminal of this counting unit, and wherein temporary the and output of this working storage one this count results during previous is as previous count results; And
Comparing unit couples the output terminal of this working storage and this counting unit, in order to the output result of this working storage and this counting unit relatively, uses and obtains this analysis result.
15. the electric charge of a Controlling Source driver is shared the method for function, is used for display, comprising:
Use the gray-scale distribution of time schedule controller analysis video data, and obtain analysis result; And
According to this analysis result, this electric charge of this source electrode driver of activation or this display of disabled is shared function.
16. method according to claim 15 is wherein analyzed the gray-scale distribution of this video data, comprises the logic level of analyzing highest significant position in this video data, uses the gray-scale distribution that obtains this video data.
17. method according to claim 16 is wherein analyzed the gray-scale distribution of this video data, comprising:
Count the quantity of this logic level of this highest significant position in this video data, use during current and obtain count results;
Count results during keeping in before; And
Relatively deserve between early stage with previous during corresponding count results, use and obtain this analysis result.
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| CN103778895A (en) * | 2012-10-25 | 2014-05-07 | 联咏科技股份有限公司 | Self-detection charge sharing module |
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| TWI483239B (en) * | 2013-01-31 | 2015-05-01 | Himax Tech Ltd | Method of dynamic charge sharing for a display device |
| CN105810158A (en) * | 2014-12-29 | 2016-07-27 | 联咏科技股份有限公司 | Driving device and control method thereof |
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Application publication date: 20110209 |