CN103310754A - Driving device and driving method - Google Patents
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Abstract
A driving device comprises a clock controller and an AND gate driver, wherein the clock controller is used for judging an image and outputting a first control signal or a second control signal according to the image judgment result. The gate driver is used for sequentially scanning a plurality of scanning lines according to a first control signal, or is used for scanning a group of odd scanning lines in a first period and scanning a group of even scanning lines in a second period according to a second control signal. Furthermore, a driving method is also disclosed.
Description
Technical field
The invention relates to a kind of apparatus and method, and particularly relevant for a kind of drive unit and driving method.
Background technology
Liquid crystal display (Liquid crystal display, LCD) is commonly used for display device, and this is based on it and uses a little electric power can show the ability of high-quality image.In liquid crystal display, liquid crystal molecule has certain orientation based on the molecular structure of its strip and flat, and the orientation of liquid crystal molecule has the vital role that determines the light penetration rate in the liquid crystal born of the same parents of liquid crystal panel.
Generally speaking, if high voltage a period of time between between liquid crystal layer is provided, the optics through characteristic of liquid crystal molecule will change.Aforementioned change may be nonvolatil change, can cause demonstration image quality deteriorated of irreversible display panels.For a plurality of voltage signals of avoiding the deteriorated of liquid crystal molecule quality, provide giving the liquid crystal born of the same parents must change on continuity ground.Usually, source electrode driver is to configure according to reversal of poles mode (for example: picture frame reversal of poles, row reversal of poles, row reversal of poles, point-polarity counter-rotating and two-wire reversal of poles), has the voltage signal of alternating polarity with generation.
With regard to the liquid crystal display of the configuration mode that utilizes zigzag staggered (zigzag), it can adopt capable reversal of poles.Under this kind framework, when liquid crystal display display white or black picture, the power consumption of liquid crystal display is lower, yet, when liquid crystal display showed the picture of pure color or complementary color, this picture had pulses switch (transition) phenomenon, caused the power consumption of liquid crystal display to increase.
This shows that above-mentioned existing mode obviously still exists inconvenience and defective, and haves much room for improvement.In order to address the above problem, association area is there's no one who doesn't or isn't sought solution painstakingly, but does not develop yet for a long time suitable solution.
Summary of the invention
Summary of the invention aims to provide the simplification summary of this disclosure, so that the reader possesses basic understanding to this disclosure.This summary of the invention is not the complete overview of this disclosure, and its purpose is not at the key/critical element of pointing out the embodiment of the invention or defines scope of the present invention.
One purpose of content of the present invention is that a kind of drive unit and driving method are being provided, so as to improving the problem of the power consumption increase that causes display device based on pulses switch (transition) phenomenon.
For reaching above-mentioned purpose, one technology aspect of content of the present invention is about a kind of drive unit, in order to drive display panel, wherein display panel comprises a plurality of pixels and a plurality of sweep traces, each of these pixels comprises a plurality of sub-pixels, these arrangement of subpixels become array of sub-pixels, wherein these sweep traces respectively with corresponding sub-pixel electric property coupling, drive unit comprise the clock pulse controller with the door gate drivers.In operation, the clock pulse controller is in order to judging image, and exports the first control signal or the second control signal according to the image judged result.Gate drivers is in order to according to the first control signal and these sweep traces of P-SCAN, or in order to according to the second control signal and scan one group of odd-numbered scan lines and scan one group of even-line interlace line second round in the period 1.
For reaching above-mentioned purpose, another technology aspect of content of the present invention is about a kind of driving method, in order to drive display panel, wherein display panel comprises a plurality of pixels and a plurality of sweep traces, each of these pixels comprises a plurality of sub-pixels, these arrangement of subpixels become array of sub-pixels, wherein these sweep traces respectively with corresponding sub-pixel electric property coupling, driving method comprises:
Judge image, and export the first control signal or the second control signal according to the image judged result; And
According to the first control signal and these sweep traces of P-SCAN, or in order to according to the second control signal and scan one group of odd-numbered scan lines and scan one group of even-line interlace line second round in the period 1.
Therefore, according to technology contents of the present invention, the embodiment of the invention is by a kind of drive unit and driving method are provided, in order to judge image and according to the image judged result with the control gate driver, borrow make gate drivers in picture can produce pulses switch (transition) phenomenon during, scan respectively odd-numbered scan lines and even-line interlace line, to reduce the power consumption of display device.
After consulting hereinafter embodiment, the persond having ordinary knowledge in the technical field of the present invention be when can understanding easily essence spirit of the present invention and other goals of the invention, and the technology used in the present invention means with implement aspect.
Description of drawings
For above and other purpose of the present invention, feature, advantage and embodiment can be become apparent, appended graphic being described as follows:
Fig. 1 is the schematic diagram that illustrates according to a kind of display device of one embodiment of the invention.
Fig. 2 A is the output control signal oscillogram that illustrates according to the present invention's gate drivers shown in Figure 1; Fig. 2 B is the pulses switch schematic diagram that illustrates according to data line shown in Figure 1.
Fig. 3 A is the output control signal oscillogram that illustrates according to the present invention's gate drivers shown in Figure 1; Fig. 3 B is the pulses switch schematic diagram that illustrates according to data line shown in Figure 1.
According to usual operating type, various features and element are not drawn to scale among the figure, and its drafting mode is to present specific features related to the present invention and element for the mode with the best.In addition, graphic of difference, censure similar elements/components with same or analogous component symbol.
Embodiment
For the narration that makes this disclosure more detailed and complete, hereinafter for enforcement aspect of the present invention and specific embodiment illustrative description has been proposed; But this is not unique form of implementing or using the specific embodiment of the invention.Contained in the embodiment a plurality of specific embodiments feature and in order to the method step of construction and these specific embodiments of operation with its sequentially.Yet, also can utilize other specific embodiments to reach identical or impartial function and step order.
Unless this instructions has definition in addition, the implication of science and technology vocabulary used herein is identical with habitual meaning with persond having ordinary knowledge in the technical field of the present invention's understanding.In addition, under the situation of discord context conflict, the used singular noun of this instructions contains a plurality of types of this noun; And also contain the odd number type of this noun during used a plurality of noun.
In addition, about " coupling " used herein or " connection ", all can refer to two or a plurality of element mutually directly make entity or electrical contact, or mutually indirectly put into effect body or electrical contact, also can refer to two or a plurality of element mutual operation or action.
Be the problem that the power consumption that solves pulses switch (transition) display device that phenomenon causes increases, the embodiment of the invention proposes a kind of drive unit and driving method, cooperates in the lump graphic being illustrated as rear at this.
Fig. 1 is the schematic diagram that illustrates a kind of display device according to one embodiment of the invention.As shown in the figure, display device comprises drive unit 100, data driver 200 and display panel 500.Furthermore, drive unit 100 comprise clock pulse controller 110 with door gate drivers 120, this drive unit 100 is to drive display panel 500.
Specifically, display panel 500 comprise a plurality of pixels 510,520 ... Deng, a plurality of sweep traces 501～508 and a plurality of data lines 531～537.Furthermore, pixel 510 comprises sub-pixel 510R, 510G, 510B, and pixel 520 comprises sub-pixel 520R, 520G, 520B, and these sub-pixels 510R～520B is arranged in array of sub-pixels as shown in Figure 1.In addition, these sweep traces 501～508 and these data lines 531～537 respectively with corresponding sub-pixel electric property coupling.For example, six picture annexations on the first row are as follows: sub-pixel 510R/G/B all is connected the first sweep trace 501 with 520R/G/B, but the data line that each sub-pixel connects is different, as: sub-pixel 510R connection data line 532, sub-pixel 510G connection data line 533, sub-pixel 510B connection data line 534, sub-pixel 520R connection data line 535, sub-pixel 520G connection data line 536 and sub-pixel 510B connection data line 537.Six picture annexations on the secondary series are as follows: sub-pixel 510R/G/B all is connected the second sweep trace 502 with 520R/G/B, but the data line that each sub-pixel connects is different, as: sub-pixel 510R connection data line 531, sub-pixel 510G connection data line 532, sub-pixel 510B connection data line 533, sub-pixel 520R connection data line 534, sub-pixel 520G connection data line 535 and sub-pixel 510B connection data line 536.And the sub-pixel annexation just connects and analogizes according to above-mentioned connected mode in regular turn on the different lines that postorder continues, for example: the 3rd sub-pixel that lists all connects three scan line 503, and itself and corresponding data line annexation just adopt first row sub-pixel and data line connected mode, and the 4th sub-pixel that lists all connects the 4th sweep trace 504, and itself and corresponding data line annexation just adopt secondary series sub-pixel and data line connected mode, and the sub-pixel on the subsequent column is just analogized.As from the foregoing, in different lines but (for example: data line 531 and 532) annexation will present and is staggered, and namely zigzag is arranged (zigzag) with the sub-pixel in the delegation and corresponding data line.
When realizing embodiments of the invention, above-mentioned display panel 500 can be but is not limited to display panels (Liquid Crystal Display, LCD), light emitting diode (Light-Emitting Diode, LED) panel, Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) panel, Plasmia indicating panel (Plasma Display Panel, PDP) ... Deng.Anyly have the knack of this skill person under the spirit of the embodiment of the invention, when can be according to actual demand optionally to adopt suitable element to realize the present invention.
From the above, when realizing embodiments of the invention, usually can produce several different situations, and need are controlled with adaptive means respectively, below will describe out situation in detail.In the situation that display panel 500 is in order to display white or black picture, because all sub-pixels are complete bright or complete dark, therefore, if general gate drivers is exported control signal and these sweep traces 501～508 of P-SCAN, then data line can not produce the pulses switch phenomenon when the transmission of data gives inferior picture number.Yet, in the situation that display panel 500 is in order to show pure color or complementary color picture, if general gate drivers is exported control signal and these sweep traces 501～508 of P-SCAN, then data line 531～537 the transmission of datas give in the process of sub-pixel, will locate (idol of expressing one's surprise, wonder, etc afterwards is situation alternately) pulsing conversion phenomena in the replacing of sub-pixel of odd column and even column.
Hence one can see that, if adopt general gate drivers, and comes one size fits all in sweep trace 501～508 with usual control mode, then can produce above-mentioned pulses switch phenomenon.Accordingly, the present invention is configuration driven device 100 in display device, it comprises clock pulse controller 110 and corresponding gate drivers 120, and can come respectively the order of these sweep traces 501～508 of gated sweep with adaptive means, the problem that is caused to solve the pulses switch phenomenon.
Particularly, when an image was wanted transmission display panel 500 and shown, clock pulse controller 110 was in order to judging aforementioned image, and exported the first control signal or the second control signal according to the judged result of aforementioned image.Therefore, gate drivers 120 can be adaptively according to the first control signal and these sweep traces 501～508 of P-SCAN, or gate drivers 120 adaptability ground are according to the second control signal and scan one group of odd-numbered scan lines and scan one group of even-line interlace line second round in the period 1.
Therefore, gate drivers 120 is able in the situation that do not need special control, these sweep traces 501～508 of P-SCAN, to save controlling cost of specially gated sweep order, yet, gate drivers 120 still is able in another case adaptively non-ly in two cycles not adopt different scan modes, thereby in the process of complete scan display panel 500, the pulses switch phenomenon that only can cause in the odd-even alternation situation in data line 531～537 is to reduce the power consumption of display device.
The adaptive control device of above-mentioned gate drivers 120 comprises several different implementations, below will explain respectively.
In an implementation, if clock pulse controller 110 is judged aforementioned image and is white or black, then clock pulse controller 110 is exported the first control signal according to above-mentioned image judged result, subsequently, because in the case, data line 531～537 can't produce pulses switch, therefore, gate drivers 120 does not need to control especially according to the first control signal and a little sweep traces 501～508 of P-SCAN get final product.
Moreover, if clock pulse controller 110 is judged aforementioned image and is pure color or complementary color, then clock pulse controller 110 is exported the second control signal according to above-mentioned image judged result, subsequently, because in the case, data line 531～537 gives in time process of picture number in the transmission of data, have the generation of odd-even alternation situation and cause the pulses switch phenomenon, at this moment, need adaptive control mode, come the scanning sequency of gated sweep line.On open scanning sequency and be illustrated in 2A and Fig. 2 B exemplaryly, wherein Fig. 2 A is the present invention's gate drivers shown in Figure 1 120 output control signal oscillograms, and the pulses switch schematic diagram of Fig. 2 B data line that to be the present invention shown in Figure 1.It should be noted that, please in the lump reference the 1st and Fig. 2 A, the first sweep trace 501 output scanning signal G1, the second sweep trace 502 output scanning signal G2, three scan line 503 output scanning signal G3 ... by that analogy.
As shown in Figure 1, data driver 200 is in a picture cycle, during for driving one pure red picture, the data line 531,533 and 535 of output provides respectively the negative polarity pixel data to corresponding pixel, and the data line 532,534 and 536 of output provides respectively the positive polarity pixel data to corresponding pixel.Please refer to Fig. 2 A, gate drivers 120 adaptively according to the second control signal and in period 1 T1 sequentially output scanning signal G1, G3 with scan the first sweep trace 501 and three scan line 503 and in second round T2 sequentially output scanning signal G2, G4 to scan the second sweep trace 502 and the 4th sweep trace 504.
In the present embodiment, above-mentioned condition continues, gate drivers 120 except according to the second control signal and in period 1 T1 and second round T2 scan respectively these sweep traces, gate drivers 120 is further according to the second control signal, and in period 3 T3 sequentially output scanning signal G6, G8 scanning the 6th sweep trace 506 and the 8th sweep trace 508, and in period 4 T4 sequentially output scanning signal G5, G7 to scan the 5th sweep trace 505 and the 7th sweep trace 507.Wherein period 1 T1, second round, T2, period 3 T3 and period 4 T4 belonged to same picture cycle.Please refer to Fig. 2 B, scan mode according to above-mentioned gate drivers 120, gate drivers 120 only has the generation of minority odd-even alternation situation and causes the pulses switch phenomenon, thereby can reduce the power consumption of display device in the process of complete scan display panel 500 in data line 531～537.Furthermore, when driving pure red picture, data line 532,534 and 536 only is converted to T2 second round in period 1 T1, and period 3 T3 has the pulses switch phenomenon that the odd-even alternation situation causes when being converted to period 4 T4, thereby can reduce the power consumption of display device.So, adopt the mode of P-SCAN fully compared to gate drivers 120, the power consumption that is minimized display device reaches 50%.
In addition, please refer to Fig. 2 B, when driving pure red picture, data line 531 provides the negative polarity data-signal 201 of an electronegative potential in first to fourth cycle T, 1～T4.Data line 532 provides the positive polarity data voltage 202 of noble potential to the pixel corresponding to the first sweep trace 501 and three scan line 503 in period 1 T1, data line 532 in second round T2 provide the positive polarity data voltage 202 of electronegative potential to the pixel corresponding to the second sweep trace 502 and the 4th sweep trace 504, data line 532 provides the positive polarity data voltage 202 of electronegative potential to the pixel corresponding to the 6th sweep trace 506 and the 8th sweep trace 508 in period 3 T3, and data line 532 provides the positive polarity data voltage 202 of noble potential to the pixel corresponding to the 5th sweep trace 505 and the 7th sweep trace 507 in period 4 T4.
Then, data line 533 provides the negative polarity data-signal 203 of an electronegative potential in first to fourth cycle T, 1～T4.Data line 534 provides the positive polarity data voltage 204 of electronegative potential to the pixel corresponding to the first sweep trace 501 and three scan line 503 in period 1 T1, data line 534 in second round T2 provide the positive polarity data voltage 204 of noble potential to the pixel corresponding to the second sweep trace 502 and the 4th sweep trace 504, data line 534 provides the positive polarity data voltage 204 of noble potential to the pixel corresponding to the 6th sweep trace 506 and the 8th sweep trace 508 in period 3 T3, and data line 534 provides the positive polarity data voltage 204 of electronegative potential to the pixel corresponding to the 5th sweep trace 505 and the 7th sweep trace 507 in period 4 T4.
Moreover, data line 535 provides the negative polarity data voltage 205 of noble potential to the pixel corresponding to the first sweep trace 501 and three scan line 503 in period 1 T1, data line 535 in second round T2 provide the negative polarity data voltage 205 of electronegative potential to the pixel corresponding to the second sweep trace 502 and the 4th sweep trace 504, data line 535 provides the negative polarity data voltage 205 of electronegative potential to the pixel corresponding to the 6th sweep trace 506 and the 8th sweep trace 508 in period 3 T3, and data line 535 provides the negative polarity data voltage 205 of noble potential to the pixel corresponding to the 5th sweep trace 505 and the 7th sweep trace 507 in period 4 T4.
In addition, data line 536 provides the positive polarity data-signal 206 of an electronegative potential in first to fourth cycle T, 1～T4.Data line 537 provides the negative polarity data voltage 207 of electronegative potential to the pixel corresponding to the first sweep trace 501 and three scan line 503 in period 1 T1, data line 537 in second round T2 provide the negative polarity data voltage 207 of noble potential to the pixel corresponding to the second sweep trace 502 and the 4th sweep trace 504, data line 537 provides the negative polarity data voltage 207 of noble potential to the pixel corresponding to the 6th sweep trace 506 and the 8th sweep trace 508 in period 3 T3, and data line 537 provides the negative polarity data voltage 207 of electronegative potential to the pixel corresponding to the 5th sweep trace 505 and the 7th sweep trace 507 in period 4 T4.
In another implementation, if judging aforementioned image, clock pulse controller 110 is white or black, then clock pulse controller 110 is exported the first control signal according to above-mentioned image judged result, similarly, does not need to control especially.
Moreover, if clock pulse controller 110 is judged aforementioned image and is pure color (for example as red, green or blue) or complementary color (for example being carmetta, cyan or yellow), then clock pulse controller 110 is exported the second control signal according to above-mentioned image judged result, similarly, because in the case, data line 531～537 gives in time process of picture number in the transmission of data, have the generation of odd-even alternation situation and cause the pulses switch phenomenon, at this moment, need adaptive control mode, come the scanning sequency of gated sweep line.On open scanning sequency and be illustrated in Fig. 3 A and Fig. 3 B exemplaryly, wherein Fig. 3 A is the control signal oscillogram of the present invention's gate drivers shown in Figure 1 120 outputs, and the pulses switch schematic diagram of Fig. 3 B data line that to be the present invention shown in Figure 1.Specifically, please refer to the 1st with Fig. 3 A, the first sweep trace 501 output scanning signal G1, the second sweep trace 502 output scanning signal G2, three scan line 503 output scanning signal G3 ... by that analogy.
As shown in Figure 3A, gate drivers 120 adaptability according to the second control signal and in period 1 T1 sequentially output scanning signal G1, G3, G5, G7 with scan the first sweep trace 501, three scan line 503, the 5th sweep trace 505 and the 7th sweep trace 507 and in second round T2 sequentially output scanning signal G2, G4, G6, G8 to scan the second sweep trace 502, the 4th sweep trace 504, the 6th sweep trace 506 and the 8th sweep trace 508, wherein period 1 T1 and second round T2 belong to same picture cycle.Subsequently, please refer to Fig. 3 B, adaptive scan mode according to above-mentioned gate drivers 120, gate drivers 120 is in the process of complete scan display panel 500, when driving pure red picture, data line 532,534 and 536 only is converted in period 1 T1 and has the odd-even alternation situation second round during T2 and occur and cause the pulses switch phenomenon, so, adopt the mode of P-SCAN fully compared to gate drivers 120, the power consumption that is minimized display device reaches 75%.
In addition, the embodiment of the invention more proposes a kind of driving method, it is in order to drive display panel 500 as shown in Figure 1, for making above-mentioned driving method be easier to understand, please in the lump with reference to Fig. 1, this driving method comprises following steps: judge an image, and export the first control signal or the second control signal according to the image judged result; And according to the first control signal and these sweep traces 501～508 of P-SCAN, or in order to according to the second control signal and scan one group of odd-numbered scan lines 501,503,505,507 and scan one group of even-line interlace line 502,504,506,508 second round in the period 1.
Therefore, driving method is able in the situation that do not need special control, these sweep traces 501～508 of P-SCAN, to save controlling cost of specially gated sweep order, yet driving method still is able to non-ly in two cycles adaptively in another case not adopt different scan modes, and in the process of complete scan display panel 500, the pulses switch phenomenon that causes of odd-even alternation situation once only in data line 531～537 is to reduce the power consumption of display device.
The adaptive control device of above-mentioned driving method comprises several different implementations, below will explain respectively.
In an implementation, if driving method is judged aforementioned image and is pure color or complementary color, then driving method is exported the second control signal according to above-mentioned image judged result, subsequently, because in the case, data line 531～537 gives in time process of picture number in the transmission of data, have the generation of odd-even alternation situation and cause the pulses switch phenomenon, at this moment, need adaptive control mode, come the scanning sequency of gated sweep line, on open scanning sequency and be illustrated in 2A and Fig. 2 B exemplaryly.
Shown in Fig. 2 A, driving method according to the second control signal and in period 1 T1 sequentially output scanning signal G1, G3 with scan the first sweep trace 501 and three scan line 503 and in second round T2 sequentially output scanning signal G2, G4 to scan the second sweep trace 502 and the 4th sweep trace 504.Subsequently, please refer to Fig. 2 B, according to the adaptive scan mode of above-mentioned driving method, in the process of complete scan display panel 500, only have the generation of minority odd-even alternation situation and cause the pulses switch phenomenon, thereby can reduce the power consumption of display device.
In the present embodiment, above-mentioned condition continues, driving method except according to the second control signal and in period 1 T1 and second round T2 scan respectively these sweep traces, driving method is further according to the second control signal, and in period 3 T3 sequentially output scanning signal G6, G8 scanning the 6th sweep trace 506 and the 8th sweep trace 508, and in period 4 T4 sequentially output scanning signal G5, G7 to scan the 5th sweep trace 505 and the 7th sweep trace 507.Please refer to Fig. 2 B, scan mode according to above-mentioned driving method, driving method is in the process of complete scan display panel 500, only be converted to T2 second round in period 1 T1, and period 3 T3 has the pulses switch phenomenon that the odd-even alternation situation causes when being converted to period 4 T4, so, compared to the mode that adopts P-SCAN fully, the power consumption that is minimized display device reaches 50%.
In another implementation, if driving method is judged aforementioned image and is pure color or complementary color, then driving method is exported the second control signal according to above-mentioned image judged result, similarly, because in the case, data line 531～537 gives in time process of picture number in the transmission of data, have the generation of odd-even alternation situation and cause the pulses switch phenomenon, at this moment, need adaptive control mode, come the scanning sequency of gated sweep line, on open scanning sequency and be illustrated in Fig. 3 A and Fig. 3 B exemplaryly.
As shown in Figure 3A, driving method adaptability according to the second control signal and in period 1 T1 sequentially output scanning signal G1, G3, G5, G7 with scan the first sweep trace 501, three scan line 503, the 5th sweep trace 505 and the 7th sweep trace 507 and in second round T2 sequentially output scanning signal G2, G4, G6, G8 to scan the second sweep trace 502, the 4th sweep trace 504, the 6th sweep trace 506 and the 8th sweep trace 508.Subsequently, please refer to Fig. 3 B, adaptive scan mode according to above-mentioned driving method, driving method is in the process of complete scan display panel 500, when driving pure red picture, data line 532,534 and 536 only is converted in period 1 T1 and has the odd-even alternation situation second round during T2 and occur and cause the pulses switch phenomenon, so, compared to the mode that adopts P-SCAN fully, the power consumption that is minimized display device reaches 75%.
In addition, please refer to Fig. 3 B, when driving pure red picture, data line 531 provides the negative polarity data-signal 201 of an electronegative potential in first to fourth cycle T, 1～T4.Data line 532 provides the positive polarity data voltage 202 of noble potential to the pixel corresponding to the first sweep trace 501, three scan line 503, the 5th sweep trace 505 and the 7th sweep trace 507 in period 1 T1, data line 532 in second round T2 provide the positive polarity data voltage 202 of electronegative potential to the pixel corresponding to the second sweep trace 502, the 4th sweep trace 504, the 6th sweep trace 506 and the 8th sweep trace 508.
Then, data line 533 provides the negative polarity data-signal 203 of an electronegative potential in first to fourth cycle T, 1～T4.Data line 534 provides the positive polarity data voltage 204 of electronegative potential to the pixel corresponding to the first sweep trace 501, three scan line 503, the 5th sweep trace 505 and the 7th sweep trace 507 in period 1 T1, data line 534 in second round T2 provide the positive polarity data voltage 204 of noble potential to the pixel corresponding to the second sweep trace 502, the 4th sweep trace 504, the 6th sweep trace 506 and the 8th sweep trace 508.
Moreover, data line 535 provides the negative polarity data voltage 205 of noble potential to the pixel corresponding to the first sweep trace 501, three scan line 503, the 5th sweep trace 505 and the 7th sweep trace 507 in period 1 T1, data line 535 in second round T2 provide the negative polarity data voltage 205 of electronegative potential to the pixel corresponding to the second sweep trace 502, the 4th sweep trace 504, the 6th sweep trace 506 and the 8th sweep trace 508.
In addition, data line 536 provides the positive polarity data-signal 206 of an electronegative potential in first to fourth cycle T, 1～T4.Data line 537 provides the negative polarity data voltage 207 of electronegative potential to the pixel corresponding to the first sweep trace 501, three scan line 503, the 5th sweep trace 505 and the 7th sweep trace 507 in period 1 T1, data line 537 in second round T2 provide the negative polarity data voltage 207 of noble potential to the pixel corresponding to the second sweep trace 502, the 4th sweep trace 504, the 6th sweep trace 506 and the 8th sweep trace 508.
Aforesaid driving method all can be carried out by software, hardware and/or a piece of wood serving as a brake to halt a carriage body.For instance, if with execution speed and accuracy for primarily considering, it is main then basically can selecting hardware and a piece of wood serving as a brake to halt a carriage body; If for primarily considering, it is main then basically can selecting software with design flexibility; Perhaps, can adopt simultaneously software, hardware and a piece of wood serving as a brake to halt a carriage body work compound.Should be appreciated that, above for these examples not so-called which is better and which is worse minute, also be not to limit the present invention, have the knack of this skill person when looking at that time elasticity of demand design.
Moreover, having in the affiliated technical field and usually know the knowledgeable when understanding, each step in the driving method is named according to the function of its execution, only is in order to allow the technology of this case more become apparent, and is not to limit these steps.Each step is integrated into same step or is split into a plurality of steps, perhaps arbitrary step is changed in another step and carry out, all still belonged to the embodiment of this disclosure.
By the invention described above embodiment as can be known, use the present invention and have following advantages.The embodiment of the invention is by providing a kind of drive unit and driving method, and control display panel adaptively.Specifically, drive unit and driving method must be in order to judging image, and under the situation that does not need to control especially in display panel, these sweep traces of P-SCAN are to save controlling cost of specially gated sweep order.Yet when display panel can produce the pulses switch phenomenon, drive unit and driving method be the scanning sequency of control display panel adaptively, with the frequency of minimizing pulses switch phenomenon, and then the power consumption of reduction display device.
Although the present invention discloses as above with preferred embodiment; so it is not to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (10)
1. drive unit, in order to drive a display panel, wherein this display panel comprises a plurality of pixels and a plurality of sweep traces, each of these a plurality of pixels comprises a plurality of sub-pixels, these a plurality of arrangement of subpixels become an array of sub-pixels, wherein these a plurality of sweep traces respectively with corresponding sub-pixel electric property coupling, this drive unit comprises:
One clock pulse controller in order to judging an image, and is exported one first control signal or one second control signal according to an image judged result; And
One gate drivers, in order to according to this first control signal and these a plurality of sweep traces of P-SCAN, or in order to according to this second control signal and scan one group of odd-numbered scan lines and scan one group of even-line interlace line a second round in a period 1.
2. drive unit as claimed in claim 1, it is characterized in that, these a plurality of sweep traces comprise one first sweep trace, one second sweep trace, a three scan line and one the 4th sweep trace, and wherein this gate drivers sequentially scans this first sweep trace and this three scan line and sweeps this second round according to this second control signal and in this period 1 and sequentially retouches this second sweep trace and the 4th sweep trace.
3. drive unit as claimed in claim 2, it is characterized in that, these a plurality of sweep traces more comprise one the 5th sweep trace, one the 6th sweep trace, one the 7th sweep trace and one the 8th sweep trace, and wherein this gate drivers is according to this second control signal and sequentially scan the 6th sweep trace and the 8th sweep trace and sequentially scan the 5th sweep trace and the 7th sweep trace in a period 4 in a period 3.
4. drive unit as claimed in claim 1, it is characterized in that, these a plurality of sweep traces comprise one first to 1 the 8th sweep trace, it is characterized in that, this gate drivers is according to this second control signal and sequentially scan this first sweep trace, this three scan line, the 5th sweep trace and the 7th sweep trace and sequentially scan this second sweep trace, the 4th sweep trace, the 6th sweep trace and the 8th sweep trace this second round in this period 1.
5. such as claim 1,2,3 or 4 described drive units, it is characterized in that, when this clock pulse controller is judged this image as a black or white image, export this first control signal, and when this clock pulse controller is judged this image as a pure color or complementary color image, export this second control signal.
6. driving method, in order to drive a display panel, it is characterized in that, this display panel comprises a plurality of pixels and a plurality of sweep traces, each of these a plurality of pixels comprises a plurality of sub-pixels, these a plurality of arrangement of subpixels become an array of sub-pixels, wherein these a plurality of sweep traces respectively with corresponding sub-pixel electric property coupling, this driving method comprises:
Judge an image, and export one first control signal or one second control signal according to an image judged result; And
According to this first control signal and these a plurality of sweep traces of P-SCAN, or in order to according to this second control signal and scan one group of odd-numbered scan lines and scan one group of even-line interlace line a second round in a period 1.
7. driving method as claimed in claim 6, it is characterized in that, these a plurality of sweep traces comprise one first sweep trace, one second sweep trace, a three scan line and one the 4th sweep trace, wherein according to this second control signal and scan this group odd-numbered scan lines and comprise in the step that scan this group even-line interlace line this second round in this period 1:
Sequentially scan this first sweep trace and this three scan line and sweep this second round according to this second control signal and in this period 1 and sequentially retouch this second sweep trace and the 4th sweep trace.
8. driving method as claimed in claim 7 is characterized in that, these a plurality of sweep traces more comprise one the 5th sweep trace, one the 6th sweep trace, one the 7th sweep trace and one the 8th sweep trace, and wherein this driving method more comprises:
According to this second control signal and sequentially scan the 6th sweep trace and the 8th sweep trace and sequentially scan the 5th sweep trace and the 7th sweep trace in a period 4 in this period 3.
9. driving method as claimed in claim 6, it is characterized in that, these a plurality of sweep traces comprise one first to 1 the 8th sweep trace, wherein according to this second control signal and scan this group odd-numbered scan lines and comprise in the step that scan this group even-line interlace line this second round in this period 1:
According to this second control signal and sequentially scan this first sweep trace, this three scan line, the 5th sweep trace and the 7th sweep trace and sequentially scan this second sweep trace, the 4th sweep trace, the 6th sweep trace and the 8th sweep trace this second round in this period 1.
10. such as claim 6,7,8 or 9 described driving methods, it is characterized in that, judge this image, and comprise according to the step that this image judged result is exported this first control signal or this second control signal:
Judge this image, wherein when judging this image as a black or white image, export this first control signal, and when judging this image as a pure color or complementary color image, export this second control signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102116238 | 2013-05-07 | ||
| TW102116238A TWI492212B (en) | 2013-05-07 | 2013-05-07 | Drining device and driving method |
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| CN103310754A true CN103310754A (en) | 2013-09-18 |
| CN103310754B CN103310754B (en) | 2016-02-03 |
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| TW (1) | TWI492212B (en) |
Cited By (3)
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| CN104599619A (en) * | 2013-12-06 | 2015-05-06 | 北京京东方光电科技有限公司 | Grid line driving method, gate driving circuit and display device |
| WO2015184678A1 (en) * | 2014-06-07 | 2015-12-10 | 深圳市华星光电技术有限公司 | Driving method and device of display |
| CN106531039A (en) * | 2016-12-23 | 2017-03-22 | 深圳市华星光电技术有限公司 | Display device and pure-color picture detection method thereof |
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| KR102509164B1 (en) | 2016-09-29 | 2023-03-13 | 엘지디스플레이 주식회사 | Display Device and Method of Sub-pixel Transition |
| TWI607426B (en) * | 2017-02-02 | 2017-12-01 | 友達光電股份有限公司 | Display panel and method for controlling the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201443857A (en) | 2014-11-16 |
| CN103310754B (en) | 2016-02-03 |
| TWI492212B (en) | 2015-07-11 |
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