CN1928960A - Multiple frequency scanning method and display having the same - Google Patents

Multiple frequency scanning method and display having the same Download PDF

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Publication number
CN1928960A
CN1928960A CN 200510102429 CN200510102429A CN1928960A CN 1928960 A CN1928960 A CN 1928960A CN 200510102429 CN200510102429 CN 200510102429 CN 200510102429 A CN200510102429 A CN 200510102429A CN 1928960 A CN1928960 A CN 1928960A
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CN
China
Prior art keywords
display
grid
drive element
pixels
above
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CN 200510102429
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Chinese (zh)
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CN100461238C (en
Inventor
黄明伟
曾文泽
廖木山
黄俊颖
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中华映管股份有限公司
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Publication of CN1928960A publication Critical patent/CN1928960A/en
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Abstract

The multiple-frequency scanning method for driving display can drive display pixel for many times to speedup pixel response time up to target luminance; besides, charging and discharging the pixel in one frame period for two or more times. This invention can improve dynamic figure quality.

Description

Frequency multiplication scanning method and display with frequency multiplication scanning method

Technical field

The present invention relates to a kind of frequency multiplication scanning method of display and display with frequency multiplication scanning method, and be particularly related to a kind of cutting apart the driven sweep of block of pixels blocked operation, with the display frequency multiplication scanning method of time of quickening pixel response and display with frequency multiplication scanning method.

Background technology

Along with the progress and the technological innovation of science and technology, the development of display device is maked rapid progress.In field of display, traditional cathode-ray tube display is because problems such as its bulky and radiant quantity height, eliminated by market gradually, the substitute is low radiation, low power consuming, image quality height and compact flat-panel screens, existing on the market product comprises for example LCD, organic light emitting diode display or plasma display etc.

The frame of display is to be arranged with matrix-style by a plurality of pixels to form, and wherein pixel is the base unit of frame.For example in a LCD, frame is to be arranged with matrix-style by a plurality of pixels to form, and the target voltage that pixel data produces discharges and recharges the brightness that shows with decision to pixel.Display normally shows a frame (Frame) according to horizontal-drive signal and vertical synchronizing signal, and it is driven by drive element of the grid and source drive unit respectively.The pixel columns that horizontal-drive signal showed in the decision unit interval, and vertical synchronizing signal determines each frame to show the length of time, the time interval of adjacent two vertical synchronizing signals is a frame period.And the frame refreshing frequency of the representative reciprocal in frame period also can be used to represent the characteristic of vertical synchronizing signal.The frame refreshing frequency of at present general graphoscope more than 60Hz, meaning be display at the frame data that can show within the second more than 60 frames, each frame period is below 16.7 microseconds (ms).

In display technology, general vertical scanning frequency is 60Hz, and traditional scan mode is with source drive unit and drive element of the grid, moves once successively in the time of a frame.Please refer to Fig. 1, is example with LCD 100, and source drive unit 101, drive element of the grid 102,104 and 106 are connected respectively to liquid crystal panel 110.In each frame period, only can once charge the curve synoptic diagram of its charging original response time curve 410 as shown in Figure 4 to each pixel.In each frame period T,, its pixel is charged and desired to reach object brightness (Target Luminance) for example for N frame.Can find from original response time curve 410, there is no any improved effect in the acceleration to the liquid crystal response time in the pixel.

For improving this problem, in known technology, in the patent as No. the 502234th, TaiWan, China publication number, a kind of so-called " inferior frame driving method " proposed.In this frame driving method, with identical vertical display condition, for example the frame refreshing frequency is 60Hz, meaning is the frame residence time to be about 16.7ms, the residence time of a frame (being assumed to be m * n pixel) is divided into k time frame residence time, and respectively add a driving voltage (purpose voltage adds driving side-play amount separately) in this k frame, so that reach the purpose of quickening the liquid crystal response time.As shown in Figure 2, for example one show that the frame residence time of m * n pixel is divided into the driven waveform of two inferior frame residence time of k=2.

Among Fig. 2, at time point t S0To time point t S1Between time interval be first time frame residence time, show first time frame.Time point t S1To time point t SfBetween time interval be second time frame residence time, shows second inferior frame.Show time, the driving voltage V that is applied at first time frame OBe original purpose driving voltage (V D) add and correspond to the driving side-play amount of the transition driving voltage (Δ V1) of frame for the first time.And show that at second frame the driving voltage that the time applied is original purpose voltage (V D), reach the purpose that shortens the liquid crystal response time by above method.

Yet in above-mentioned known technology, in case when the driving side-play amount is inaccurate, each driving voltage that applies can't meet the expected requirements, and will destroy the display quality of frame.On the other hand, the driving side-play amount that is produced in the known technology, be framework on the superpotential Driving technique, therefore must increase frame buffer (Frame Buffer), be generally synchronous DRAM (SDRAM) to store pixel data.In addition, also need increase storer and (be generally EEPROM (Electrically Erasable Programmable Read Only Memo) (Electrically Erasable Programmable Read-Only Memory, EEPROM)), make relevance ratio and with after calculating to obtain to drive side-play amount to deposit the table of comparisons (Look Up Table).

In sum, for obtaining to drive the capacity cost that side-play amount must increase the frame buffer and the table of comparisons.In addition, the technology of superpotential driving drives on the side-play amount accurately in acquisition usually, and except the hardware facility that needs the table of comparisons stores the corresponding side-play amount, operational method of being implemented or mechanism are all too complicated, and degree of accuracy also is difficult to grasp.Therefore need a kind of LCD frequency multiplication type of drive of improvement, and need not increase the cost of hardware, and be able to accurately grasp easily liquid crystal drive voltage.

Summary of the invention

The present invention proposes a kind of with the display frequency multiplication scanning method of cutting apart block of pixels blocked operation source drive unit and drive element of the grid and the display with frequency multiplication scanning method, to reach the time of quickening the display response.In an embodiment, frequency multiplication scanning method of the present invention is the target voltage that the pixel in the display is applied, corresponding to object brightness (TargetLuminance), in the same frame period, pixel is repeatedly charged with identical target voltage, with the pixel response speed of raising display, and the quality that dynamically shows.

In the embodiment that implements frequency multiplication scanning method of the present invention, the pixel of arranging with matrix form in the display can be divided into several blocks, these blocks are driven by the included a plurality of sub-drive element of the grid of drive element of the grid.Because the present invention is with same target voltage, imposes on pixel more than twice or twice within the same frame period, to quicken the pixel response time.Wherein the time point of each charging is to determine as required.

For reaching above-mentioned purpose, in one embodiment, the present invention proposes a kind of display that is applicable to the scan method of display and uses this scan method.This display comprises source drive unit, drive element of the grid and display pannel.This scan method is that the driving with display pannel is divided into a plurality of block of pixels, and each block of pixels comprises a plurality of pixels, and is driven by the sub-drive element of the grid in the drive element of the grid.In a frame period of display, optionally block of pixels is scanned, so that make the pixel in each block of pixels carry out twice turntable driving, make these pixels quicken to discharge and recharge and arrive reaction time of object brightness with target voltage.

In the above-mentioned scan method, for the method for twice of frequency multiplication scanning, if drive element of the grid has X sub-drive element of the grid, and each sub-drive element of the grid has N output channel, the scan cycle coefficient is if be defined as M, just every M bar horizontal scanning line circulation primary, and wherein X, M, N are integer, and the time in frame period is T, then is (M * T)/(2 * N * X) from the pixel in each block of pixels being carried out turntable driving carries out turntable driving for the second time after the zero hour time point.

In the above-mentioned scan method, for the method for frequency multiplication scanning three times, if drive element of the grid has X sub-drive element of the grid, and each sub-drive element of the grid has N output channel, and the scan cycle coefficient is defined as M, just every M bar horizontal scanning line circulation primary, the turntable driving number of times that block of pixels is carried out is defined as and refreshes coefficients R, X wherein, M, N, R is a positive integer, and the time in frame period is T, then from block of pixels is carried out turntable driving after the zero hour, the time point that pixel in each block of pixels is carried out driven sweep for the second time is (2-1) * (M * T)/(R * N * X), and be (3-1) * (M * T)/(R * N * X) to the time point that the pixel in each block of pixels is carried out driven sweep for the third time.

State with other purpose, feature and advantage and can become apparent on the present invention for allowing, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.

Description of drawings

Fig. 1 is according to the LCD synoptic diagram shown in the known technology.

Fig. 2 is the driven waveform synoptic diagram according to the LCD shown in the known technology.

Fig. 3 is according to the LCD frequency multiplication scanning mode synoptic diagram shown in the preferred embodiment among the present invention.

Fig. 4 is according to the LCD liquid crystal response time waveform synoptic diagram shown in the known technology.

Fig. 5 is according to the display picture element response time waveform synoptic diagram shown in the preferred embodiment of the present invention.

The main element description of symbols

100 display panels

101 source drive unit

102 first grid driver elements

104 second grid driver elements

106 the 3rd drive element of the grid

110 pixel cells

300 displays

310 display pannels

312,314,316 block of pixels

320 source drive unit

330 drive element of the grid

332,334,336 sub-drive element of the grid

410 original response time curves

501 duration of charging points for the first time

502 duration of charging points for the second time

510 original response time curves

520 twice charging response time curve

Embodiment

The present invention proposes a kind of with the display frequency multiplication scanning method of cutting apart block of pixels blocked operation source drive unit and drive element of the grid and the display with frequency multiplication scanning method, to reach the time of quickening the display response.Therein among embodiment, frequency multiplication scanning method of the present invention is to the pixel in the display, in the same frame period, with identical target voltage pixel is repeatedly charged, so that pixel quickens to reach object brightness (Target Luminance), with pixel response speed and the dynamic display quality that improves display.This display then is applicable to LCD (Liquid Crystal Display, " LCD "), Organic Light Emitting Diode shows device (Organic Light Emitter Diode Display, " OLED "), any utilization source drive unit of plasma display (Plasma Display Panel, " PDP ") or the like and drive element of the grid drive the display of display pixel.

In the embodiment that implements frequency multiplication scanning method of the present invention, the pixel of arranging with matrix form in the display can be divided into a plurality of blocks, these blocks are driven by the included a plurality of sub-drive element of the grid of drive element of the grid.Because the present invention charged more than twice or twice to pixel with identical target voltage within the same frame period, to quicken the response time of pixel.And the number of times of charging is determined by preset parameters according to the needs in the design or by the characteristic of display with each time point that charges.

In the embodiment that implements frequency multiplication scanning method of the present invention, please refer to Fig. 3, it is the frequency multiplication scanning method synoptic diagram according to the display of preferred embodiment of the present invention.In the present embodiment, display 300 comprises display pannel 310, source drive unit 320 and drive element of the grid 330.Source drive unit 320 has a plurality of component utmost point driver elements, and drive element of the grid 330 also is made up of a plurality of sub-drive element of the grid, in this embodiment, then with three sub-drive element of the grid 332,334 and 336 explanations, yet this is only applicable to three sub-drive element of the grid for embodiment in order to restriction drive element of the grid 330, also can adjust quantity according to the needs in the design.

In the present embodiment, if show that with a frame 1024 * 3 * 768 pixel datas are example, then the frame of m * n pixel data is m=1024 * 3, and n=768.And as shown in Figure 3, in a frame period, entire frame is divided into k block, if be example with k=3 in this embodiment, meaning promptly is divided into 3 block of pixels 312,314 and 316, and each block of pixels has totally 1024 * 3 * 256 pixels, to show corresponding pixel data.And for sub-drive element of the grid 332,334 and 336, then have 256 output channels (Channels) respectively.

With reference to figure 3, begin action by the first sub-drive element of the grid 332, the transistor that article one sweep trace is linked starts (Tumed On), and meaning is promptly to pairing pixel charging on the sweep trace; Then be communicated with second sweep trace, the 3rd sweep trace in regular turn ... behind the last item sweep trace (256 output channels that just sub-drive element of the grid 332 is had) of being exported to the first sub-drive element of the grid 332, finish the frame of display pixel block 312, totally 1024 * 3 * 256 pixel datas.Then get back to article one, the second of the first sub-drive element of the grid 332 once more ... finish twice demonstration of block of pixels 312 continuously up to the first sub-drive element of the grid 332.Just for the first sub-drive element of the grid 332,256 output channels that it had are expressed as ch1~ch256 respectively, and then Shu Chu order is: ch1 → ch2 → ... → ch255 → ch256 → ch1 → ch2 → ... → ch255 → ch256.

After finishing 312 twice demonstration of display pixel block continuously, article one sweep trace of the second sub-drive element of the grid 334 just begins the transistor that is linked is started.And then be communicated with second sweep trace, the 3rd sweep trace ... until behind the last item sweep trace (256 output channels that just sub-drive element of the grid 334 is had), finish the frame of display pixel block 314.Then get back to article one sweep trace, the second sweep trace of the second sub-drive element of the grid 334 once more ... finish twice demonstration of block of pixels 314 continuously up to the second sub-drive element of the grid 334.Operating type is as the first sub-drive element of the grid 332,256 output channels that meaning is promptly had for the second sub-drive element of the grid 332 are expressed as ch1~ch256 respectively, then Shu Chu order is: ch1 → ch2 → ... → ch255 → ch256 → ch1 → ch2 → ... → ch255 → ch256, purpose is to finish twice demonstration of block of pixels 314.Identical mode, after the second sub-drive element of the grid 334 was also finished twice scanning continuously, and then the 3rd sub-grid unit 336 just began action, and mode is also as the first sub-drive element of the grid 332, and purpose is to finish twice demonstration of block of pixels 316.

According to a preferred embodiment of the present invention, the scanning sequency of the frame of display is TG111 → TG112 → TG211 → TG212 → TG311 → TG312 as shown in Figure 3.Can in a frame period time T, do twice charging by the frequency multiplication scanning mode among the present invention, pixel is imposed twice target voltage, to quicken to reach the object brightness that desire shows.In addition, behind sub-drive element of the grid output one-period, for example ch1 → ch2 → ... → ch255 → ch256 → ch1, be about the sixth of frame period time T, just the time of T/6 can charge for the second time to pixel.And the relation between its time and the response, then please refer to Fig. 5, it is in N frame, shown brightness and the graph of relation between the time, from the response time curve 520 of traditional original response time curve 510 and utilization frequency multiplication scanning mode of the present invention as can be known, the present invention can respond and reach object brightness more quickly.

In Fig. 5 as can be known, in the preferred embodiment of the present invention, in a frame period, pixel is charged twice, respectively at very first time point 501 and second time point 502, be reference point wherein with very first time point Ton_1=0, for the first time after the charging approximately T/6 can carry out second time and charge, meaning be sub-drive element of the grid to all output channels scanned once after, Ton_2 time point as shown in Figure 5.In addition, the target voltage that is applied is corresponding to object brightness, as the curve among Fig. 5 as can be seen, when charging for the first time with target voltage, the pixel response time is shown in original response time curve 510, yet during if still charge for the second time with identical target voltage work, the pixel response time charges shown in the response time curve 520 as twice among the figure, can allow pixel more early respond to object brightness.

According to another embodiment of the present invention, if the sub-drive element of the grid that drive element of the grid had of display only has two, meaning is about to a frame and is divided into two Reginal-block scannings, and then for the second time filling time point is that Ton_2 then becomes T/4.If with the situation of general utilization, if the drive element of the grid of display has sub-drive element of the grid X, then the time of Ton_2 then is T/ (2 * X).

In addition, in a preferred embodiment of the present invention, corresponding 256 output channels of each sub-drive element of the grid, defining a scan cycle coefficient is M=256.If the sub-drive element of the grid that is connected with display pannel has X, and each has N output channel, a time in frame period is T, and then the duration of charging second time puts Ton_2 and can be expressed as (M * T)/(2 * N * X).

According to described before, frequency multiplication scanning method of the present invention is to the pixel in the display, in the same frame period, with identical target voltage pixel is repeatedly charged, so that pixel quickens to reach object brightness (Target Luminance), with pixel response speed that improves display and the quality that dynamically shows.And last embodiment is three block of pixels will cutting apart, and each block of pixels is charged in same frame period T and is the example explanation twice.Yet and unrestrictedly be only applicable to charge twice, scanning sequency can be expressed as TG111 → TG112 → T211 → T212 → TG311 → TG312.Define number of times that each block of pixels charges for scanning refreshing frequency R in same frame period T at this.If will scan refreshing frequency R is revised as 3, just when R=3, each block of pixels is then charged three times in same frame period T.Just, if drive element of the grid has 3 sub-drive element of the grid, then scanning sequency can be expressed as: TG111 → TG112 → TG113 → TG211 → TG212 → TG213 → TG311 → TG312 → T313.

In the embodiment of frequency multiplication scanning method of the present invention, also can set as required at different parameters.For example, if the frame period is T, and scanning to refresh coefficient be R, and the sub-drive element of the grid of total X N the output channel of drive element of the grid, and recycle ratio is M, the order coefficient is S.X has pointed out that how many sub-drive element of the grid are arranged on this display pannel, exists with chip form usually, and each pixel region then is responsible for driving by a sub-drive element of the grid, and corresponding to N output channel.Refresh coefficients R and be each block number of times to the pixel charging within frame period T, the recycle ratio meaning is every M bar horizontal scanning line circulation primary, and the order coefficient S then is defined as N/M.According to above-mentioned definition, the scanning sequency of display then can be expressed as: TG111 → TG112 → TG113 → TG11R → TG121 → TG122 → ... → TG1SR → TG211 → TG212 → TG213 → TG21R → TG221 → TG222 → ... → TG2SR → ... → TGXSR.

Frequency multiplication scanning method according to the foregoing description, be (1-1) * (M * T)/(R * N * X)=0 for the first time to pixel duration of charging point Ton_1, be (2-1) * (M * T)/(R * N * X) for the second time to pixel duration of charging point Ton_2, and for the third time to pixel duration of charging point Ton_3 be (3-1) * (M * T)/(R * N * X), by that analogy; Wherein S, N, X, M, R are positive integer.

The present invention proposes a kind of to cut apart the display frequency multiplication scanning method and the device thereof of block of pixels blocked operation source drive unit and drive element of the grid, to reach the time of quickening the display response.In an embodiment, frequency multiplication scanning method of the present invention is the target voltage that the pixel in the display is applied, corresponding to object brightness (Target Luminance), in the same frame period, pixel is repeatedly charged with identical target voltage, with the pixel response speed of raising display, and the quality that dynamically shows.

Among the embodiment of frequency multiplication scanning method of the present invention, the pixel of arranging with matrix form in the display can be divided into a plurality of blocks.When driving,, in the same frame period, pixel is charged more than twice or twice, to quicken the pixel response time with same target voltage.The time of booster response then helps the raising of dynamic display quality, therefore, Improvement type frequency multiplication scanning method of the present invention, in the operating frequency allowed band of the utilization circuit of display and driving circuit, and under the basic hardware framework that does not need any change display to drive, allow pixel can respond object brightness apace.And the driving method of this frequency multiplication scanning, its advantage is only need use original target voltage, and do not need any driving side-play amount of extra increase as known technology, therefore, frame does not have any quality that influences frame because of unsuitable target voltage on showing.In addition on the one hand, owing to do not need the framework and the technology of working voltage compensation, therefore, the memory cost that does not need additionally to increase frame buffer (Frame Buffer) Yu deposit the table of comparisons (LookUp Table).

Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection domain is as the criterion when looking the claim person of defining.

Claims (18)

1. a frequency multiplication scanning method is applicable to display, it is characterized in that this display comprises source drive unit, drive element of the grid and display pannel, and this frequency multiplication scanning method comprises:
Cutting apart this display pannel is a plurality of block of pixels, and each above-mentioned block of pixels comprises a plurality of pixels, and is driven by the sub-drive element of the grid in this drive element of the grid; And
In the frame period of one of this display, optionally above-mentioned block of pixels is scanned, so that make the pixel in each above-mentioned block of pixels carry out turntable driving twice, make above-mentioned pixel quicken to discharge and recharge and arrive reaction time of object brightness with same target voltage.
2. frequency multiplication scanning method according to claim 1, it is characterized in that if this drive element of the grid has X above-mentioned sub-drive element of the grid, X is an integer, and this frame period is T, and then the turntable driving time is T/ (2 * X) to the pixel in each above-mentioned block of pixels for the second time.
3. frequency multiplication scanning method according to claim 1 is characterized in that if this drive element of the grid has 3 above-mentioned sub-drive element of the grid then the turntable driving time second time of the pixel in each above-mentioned block of pixels is T/6, and wherein this frame period is T.
4. frequency multiplication scanning method according to claim 1 is characterized in that if this drive element of the grid has 2 above-mentioned sub-drive element of the grid then the turntable driving time second time of the pixel in each above-mentioned block of pixels is T/4, and wherein this frame period is T.
5. frequency multiplication scanning method according to claim 1, it is characterized in that if this drive element of the grid has X above-mentioned sub-drive element of the grid, and each this sub-drive element of the grid has N output channel, and the scan cycle coefficient is defined as M, just every M bar horizontal scanning line circulation primary, wherein X, M, N are integer, and should be T the time in frame period, then be (M * T)/(2 * N * X) from the pixel in each above-mentioned block of pixels being carried out turntable driving carries out turntable driving for the second time after the zero hour time point.
6. a frequency multiplication scanning method is applicable to display, it is characterized in that this display comprises source drive unit, drive element of the grid and display pannel, and this frequency multiplication scanning method comprises:
This display pannel is divided into a plurality of block of pixels, and each above-mentioned block of pixels comprises a plurality of pixels, and by the sub-drive element of the grid in this drive element of the grid; And
Optionally above-mentioned block of pixels is scanned, carry out R time turntable driving with same target voltage so that make the interior pixel of each above-mentioned block of pixels, make above-mentioned pixel quicken to discharge and recharge and arrive reaction time of object brightness, wherein R is for to carry out the turntable driving number of times to this block of pixels.
7. scan method according to claim 6, it is characterized in that if this drive element of the grid has X above-mentioned sub-drive element of the grid, and each this sub-drive element of the grid has N output channel, and the scan cycle coefficient is defined as M, just every M bar horizontal scanning line circulation primary, X wherein, M, N, R is a positive integer, and should be T the time in frame period, then from the pixel in each above-mentioned block of pixels is carried out turntable driving after the zero hour, the time point that pixel in each above-mentioned block of pixels is carried out driven sweep for the second time is that (2-1) * (M * T)/(R * N * X), to carry out the time point of driven sweep for the third time be (3-1) * (M * T)/(R * N * X) and this block of pixels is carried out turntable driving.
8. display with frequency multiplication scanning method is characterized in that comprising:
The source drive unit;
Drive element of the grid has a plurality of sub-drive element of the grid; And
Display pannel, wherein this display is divided into a plurality of block of pixels with the driving of this display pannel when showing frame data, and each above-mentioned block of pixels is driven by the sub-drive element of the grid in this drive element of the grid; And in a frame period of this display, optionally above-mentioned block of pixels is scanned, so that make the pixel in each above-mentioned block of pixels carry out twice turntable driving, make above-mentioned pixel quicken to discharge and recharge and arrive reaction time of object brightness with same target voltage.
9. display according to claim 8 it is characterized in that X is an integer if this drive element of the grid has X above-mentioned sub-drive element of the grid, and this frame period is T, and then the turntable driving time is T/ (2 * X) to the pixel in each above-mentioned block of pixels for the second time.
10. display according to claim 8, it is characterized in that if this drive element of the grid has X above-mentioned sub-drive element of the grid, and each this sub-drive element of the grid has N output channel, and the scan cycle coefficient is defined as M, just every M bar horizontal scanning line circulation primary, wherein X, M, N are integer, and should be T the time in frame period, then be (M * T)/(2 * N * X) from the pixel in each above-mentioned block of pixels being carried out turntable driving carries out turntable driving for the second time after the zero hour time point.
11. display according to claim 8 is characterized in that this display is a kind of LCD (Liquid Crystal Display).
12. display according to claim 8 is characterized in that this display is a kind of organic light emitting diode display (Organic Light Emitter Diode Display).
13. display according to claim 8 is characterized in that this display is a kind of plasma display (Plasma Display Panel).
14. the display with frequency multiplication scanning method is characterized in that comprising:
The source drive unit;
Drive element of the grid has a plurality of sub-drive element of the grid; And
Display pannel, wherein this display is divided into a plurality of block of pixels with the driving of this display pannel when showing frame data, and each above-mentioned block of pixels is by the sub-drive element of the grid in this drive element of the grid; And
In a frame period of this display, optionally above-mentioned block of pixels is scanned, carry out R time turntable driving with same target voltage so that make the interior pixel of each above-mentioned block of pixels, make above-mentioned pixel quicken to discharge and recharge and arrive reaction time of object brightness, wherein R is for to carry out the turntable driving number of times to this block of pixels.
15. display according to claim 14, it is characterized in that if this drive element of the grid has X above-mentioned sub-drive element of the grid, and each this sub-drive element of the grid has N output channel, and the scan cycle coefficient is defined as M, just every M bar horizontal scanning line circulation primary, the turntable driving number of times that this block of pixels is carried out is defined as and refreshes coefficients R, X wherein, M, N, R is a positive integer, and should be T the time in frame period, then from the pixel in each above-mentioned block of pixels is carried out turntable driving after the zero hour, the time point that pixel in each those block of pixels is carried out driven sweep for the second time is that (2-1) * (M * T)/(R * N * X), to carry out the time point of driven sweep for the third time be (3-1) * (M * T)/(R * N * X) and this block of pixels is carried out turntable driving.
16. display according to claim 15 is characterized in that this display is a kind of LCD (Liquid Crystal Display).
17. display according to claim 15 is characterized in that this display is a kind of organic light emitting diode display (Organic Light Emitter Diode Display).
18. display according to claim 15 is characterized in that this display is a kind of plasma display (Plasma Display Panel).
CNB2005101024292A 2005-09-09 2005-09-09 Multiple frequency scanning method and display having the same CN100461238C (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019037153A1 (en) * 2017-08-25 2019-02-28 惠科股份有限公司 Driving device and display panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019037153A1 (en) * 2017-08-25 2019-02-28 惠科股份有限公司 Driving device and display panel

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