CN101308632A - Liquid crystal display and driving method thereof - Google Patents
Liquid crystal display and driving method thereof Download PDFInfo
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- CN101308632A CN101308632A CNA2007101025222A CN200710102522A CN101308632A CN 101308632 A CN101308632 A CN 101308632A CN A2007101025222 A CNA2007101025222 A CN A2007101025222A CN 200710102522 A CN200710102522 A CN 200710102522A CN 101308632 A CN101308632 A CN 101308632A
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Abstract
Disclosed is a liquid crystal display used to display one frame within the time period of one frame. The liquid crystal display comprises M scanning blocks and each scanning block comprises a plurality of scanning lines, each of which corresponds to a pixel. Frame time periods include M scanning periods respectively corresponding to one scanning block; the scanning period in each scanning block includes a black line insertion period and a plurality of scanning line periods. In the black line insertion period of the Sth scanning block, the pixels correspond to the scanning lines of the (S+N) th scanning block turn to be dark, and during the scanning line period of the Sth scanningblock, the scanning lines of the Sth scanning block are activated. S is a positive integer less than or equal to M.
Description
Technical field
The present invention relates to a kind of LCD, and be particularly related to viewing area subregion, insert the LCD of black frame with frame in the period at display frame with LCD.
Background technology
Along with the maturation of photoelectric technology and semiconductor fabrication in recent years, (FlatPanel Display) is just flourish for flat-panel screens, wherein LCD is based on advantage such as its low voltage operating, radiationless line scattering, in light weight and volume be little, replaces traditional cathode-ray tube display more gradually and becomes the main flow of display product in recent years.
LCD mainly comprises display panels (liquid crystal display panel) and backlight module, wherein display panels is by colored optical filtering substrates (Color Filter substrate, C/F substrate), thin-film transistor array base-plate (Thin Film Transistor arraysubstrate, TFT array substrate) and the liquid crystal layer that is configured between these two substrates constitute, and backlight module is in order to provide this display panels required area source, so that LCD reaches the effect of demonstration.And, dispose a plurality of pixel electrodes (pixel electrode) on the thin-film transistor array base-plate, wherein utilize the rotation of the liquid crystal molecule in the pixel electrode may command display panels, with the throughput of decision light.
When dynamic image that human eye is watched on the LCD being play, each digital frame can rest on display screen and change to next frame after a period of time again, mobile object in the front and back frame of digitized video is not to show in the mode that moves continuously at this moment, but shows in the mode that spacing distance moves.Yet, when human eye is watched mobile object, can go to follow the trail of the position of movement of objects, and in the frame transform process of LCD, backlight module still continues to provide area source.Therefore, human eye just is easy to discover in the process (liquid crystal molecule rotating process just) at frame transform object and discontinuous moving, and because same mobile object persists diverse location on retina in the front and back frame of image, and produce smear (double image) phenomenon and cause the unintelligible of image contour, further the display quality to LCD causes bad influence.
For addressing the above problem, so developing, conventional liquid crystal the black frame technique of insertion, insert a complete black frame two interframe, can make the traction phenomena of human eye impression less than interframe, effectively solve the ghost problem.
Yet, conventional liquid crystal is inserted black frame in two interframe, be that each pixel correspondence is shown that the time of a frame reduces by half, each pixel transfers dark attitude in second half time, be equivalent to frame update rate (frame rate) is doubled, it is too short to make that each pixel charges to time of predetermined value, causes each pixel to charge to predetermined value in the given time, and mistake appears in display frame.
Another conventional liquid crystal is a frame at scanning frame in the blank period (blanking time) in the period, inserts black frame.Fig. 1 shows the frame period synoptic diagram of traditional LCD Panel.In Fig. 1, for having 1024 sweep trace LCD, its frame period, TF comprised 1066 line periods, and 1024 line periods wherein are the sweep trace period, and other 42 line periods are blank period T
BlankEach sweep trace enables in each sweep trace period respectively, for example ought be positioned at the first sweep trace period TS1, and first sweep trace is enabled.After all 1024 sweep trace periods finish, at blank period T
Blank, all pixels of LCD all transfer dark attitude to, and promptly after the 1024th sweep trace enabled, all pixels transferred dark attitude to.Therefore, the demonstration time of the 1024th row pixel is the shortest, and the demonstration time of the first row pixel is the longest, and the demonstration time of each row pixel is all unequal, causes the Lower Half of frame dark than the first half.
Summary of the invention
In view of this, purpose of the present invention just provides a kind of driving method that drives LCD.LCD of the present invention is inserted black frame in the frame time of display frame, can effectively solve dynamic frame and change ghost problem fast.The viewing area of LCD of the present invention is divided into several scanning areas, the blank period is dispensed to each scanning area, all pixels with scanning area in predetermined sweep time transfer dark attitude to, realize to insert the purpose of black frame, and can solve the inconsistent problem of Lower Half brightness on the frame of aforementioned conventional LCD.LCD proposed by the invention needn't improve the frame update rate, can insert black frame in frame time.Yet those skilled in the art can learn also can be in conjunction with the technology that improves the frame update rate to realize driving method of the present invention.
According to purpose of the present invention, a kind of LCD is proposed, in order to show a frame, comprise M scanning area in the frame period, each scanning area comprises several sweep traces, the corresponding row pixel of each sweep trace, M is a positive integer.Wherein, the frame period comprises M scanning area period, respectively corresponding each scanning area, and the scanning area period of each scanning area comprises a plurality of line periods, these line periods comprise a black plug line period and a plurality of sweep trace period.When the black plug line period of the S scanning area period that is arranged in this M scanning area period, the pairing pixel of sweep trace of (S+N) scanning area of these scanning areas all transfers dark attitude to, when the sweep trace period that is positioned at the S scanning area period, the sweep trace of S scanning area is enabled.S is the positive integer that is less than or equal to M, and N is the positive integer that is less than or equal to M.
According to purpose of the present invention, a kind of driving method is proposed, use is in display, display has the viewing area, the viewing area is divided into M scanning area, each scanning area comprises several sweep traces, the viewing area shows that the period of a frame is the frame period, the frame period is divided into M scanning area period, the corresponding M of a difference scanning area, each scanning area period comprises a plurality of line periods, the line period comprises a black plug line period and a plurality of sweep trace period, this method comprises: in the black plug line period of S scanning area period, transfer the pairing pixel of sweep trace of (S+N) scanning area to dark attitude.Then, in the sweep trace period of S scanning area period, enable the sweep trace of S scanning area.Wherein, M is a positive integer, and S is the positive integer that is less than or equal to M, and N is the positive integer that is less than or equal to M.
According to purpose of the present invention, a kind of driving method is proposed, with the frame data driving display, this display comprises first scanning area and second scanning area.This driving method comprises: in the first black plug line period second scanning area is urged to dark attitude.Afterwards, in the first scanning area period, drive first scanning area with the frame data of first.In the second black plug line period first scanning area is urged to dark attitude.At last, in the second scanning area period, drive second scanning area with the frame data of second portion.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 shows the frame period synoptic diagram of traditional LCD Panel;
Fig. 2 A shows the structural drawing of the LCD of the embodiment of the invention;
Fig. 2 B shows the structural drawing of the pixel 204 of Fig. 2 A;
Fig. 3 A shows the subregion synoptic diagram of the LCD of Fig. 2 A;
Fig. 3 B shows the frame period synoptic diagram of liquid crystal display displays one frame of Fig. 3 A;
Fig. 4 A shows the sequential synoptic diagram of the frame period among Fig. 3 B;
Fig. 4 B shows another sequential synoptic diagram of the frame period of the LCD among Fig. 3 A;
Fig. 5 illustrates the driving method process flow diagram according to the embodiment of the invention.
Embodiment
LCD of the present invention is to insert black frame in the frame time of display frame, can effectively solve dynamic frame and change ghost problem fast.The viewing area of LCD of the present invention is divided into a plurality of scanning areas, and the blank period is dispensed to each scanning area, and once all pixels with the one scan district transfer dark attitude to, realizes inserting the purpose of black frame.LCD proposed by the invention needn't improve the frame update rate, can insert black frame in a frame time.
Fig. 2 A shows the structural drawing of the LCD of the embodiment of the invention.Wherein, each pixel of display panel 203 is controlled by scanner driver 202 through the one scan line respectively, and receives the data that data driver 201 is transmitted through data line respectively.For example, the pixel 204 of display panel 203 is controlled by scanner driver 202 through the first sweep trace S1, and receives the data that data driver transmitted through data line D1 respectively.The rest of pixels of display panel 203 all by that analogy.Wherein, the embodiment of the invention is an example with 1280 * 1024 resolution, and in the practical application, LCD of the present invention is not limited to this resolution.
Fig. 2 B shows the structural drawing of the pixel 204 of Fig. 2 A.Wherein, pixel 204 comprises transistor 205, liquid crystal capacitance C
LC, storage capacitors C
STThe grid of transistor 205 is coupled to the first sweep trace S1, and the drain electrode of transistor 205 is coupled to data line D1, liquid crystal capacitance C
LC, storage capacitors C
STCross-over connection is in the source electrode and common electrode V of transistor 205
ComBetween.
Please refer to Fig. 3 A, it shows the subregion synoptic diagram of the LCD of Fig. 2 A.1024 sweep traces of the LCD of Fig. 2 A are by mean allocation to 42 scanning area, make the 1st scanning area B1 to the 41 scanning area B41 all have 24 (to 1024/42 round numbers) bar sweep trace, the 42nd scanning area B42 has 40 (the bar sweep trace of 1024-24 * 41=40).For instance, the 1st scanning area B1 comprises the 1st sweep trace S1 to the 24 sweep trace S24.The 42nd scanning area B42 comprises the 985th sweep trace S985 to the 1024 sweep trace S1024.
Please refer to Fig. 3 B, it shows the frame period synoptic diagram of liquid crystal display displays one frame of Fig. 3 A.This LCD is at a frame period T
DAn interior frame, the frame period T of showing
D Comprise 1024 sweep trace period TS1～TS1024, with the blank period (blanking time), every sweep trace of this display respectively therein the one scan line enable in the period, this blank period is divided into 42 black plug line periods.Shown in Fig. 3 B, this frame period T
DBe divided into 42 scanning area period TB1～TB42, respectively to 42 scanning area B1～B42 of viewing area that should display.These 1024 sweep trace periods and 42 black plug line period mean allocation are to these 42 scanning area periods, make the 1st scanning area period TB1 to the 41 scanning area period TB41 include (to 1024/42 a round numbers) individual sweep trace period black plug line period and 24, the 42nd scanning area period TB42 comprises the black plug line period and 40 (the individual sweep trace period of 1024-24 * 41=40).Wherein, each sweep trace period all equates with the time span of each black plug line period.24 sweep traces of the 1st scanning area B1 to the 41 scanning area B41 enable in 24 sweep trace periods of the 1st scanning area period TB 1 to the 41st scanning area period TB41 respectively.40 included sweep traces of the 42nd scanning area B42 enable in 40 sweep trace periods of the 42nd scanning area period TB42 respectively.First line period that note that each scanning area period in the present embodiment is the black plug line period, and in practical application, for each scanning area period, its black plug line period can be positioned at any position of scanning area period.
Present embodiment is that at first to transfer dark attitude to be example to all pixels with the 21st scanning area that the black frame mode of insertion of the LCD of present embodiment is explained.Fig. 4 A shows the sequential synoptic diagram of the frame period among Fig. 3 B.When this LCD scanning one frame, at first, as the black plug line period TI1 that is positioned at the 1st scanning area period TB1, the pairing pixel of all sweep traces of the 21st scanning area B21 all transfers dark attitude to.Then, as first sweep trace period TS1 that is positioned at the 1st scanning area period TB1, the 1st sweep trace S1 is enabled.As next the sweep trace period TS2 that is positioned at the 1st scanning area period TB1, the 2nd sweep trace S2 is enabled.Afterwards, the everything of the 1st scanning area period TB1 by that analogy.Next, as the black plug line period TI2 that is positioned at the 2nd scanning area period TB2, the pairing pixel of all sweep traces of the 22nd scanning area B22 all transfers dark attitude to.The everything of the second scanning area period TB2 and the 1st scanning area period TB1 are identical afterwards, repeat no more in this.
As the black plug line period TI22 that is positioned at the 22nd scanning area period TB22, all pixels corresponding with the sweep trace of the 42nd scanning area B42 all transfer dark attitude to.Then, as the black plug line period TI23 that is positioned at the 23rd scanning area period TB23, all pixels corresponding with the sweep trace of the 1st scanning area B1 all transfer dark attitude to.As the black plug line period TI24 that is positioned at the 24th scanning area period TB24, all pixels corresponding with the sweep trace of the 2nd scanning area B2 all transfer dark attitude to.Afterwards, the action of all black plug frames by that analogy.
In another embodiment, 24 sweep traces are arranged respectively in the 1st～26 scanning area, 25 sweep traces are respectively arranged in the 27th～42 scanning area.The 1st～26 scanning area respectively comprises 24 sweep trace periods in the period, the 27th～42 scanning area period respectively comprised 25 sweep trace periods.
LCD of the present invention with sweep trace period mean allocation to each scanning area period, make the temporal summation that enables of the sweep trace that enables temporal summation to the 41 scanning area B41 of sweep trace of the 1st scanning area B1 all equate, can effectively solve in the conventional liquid crystal, the time that enables of each sweep trace is unequal, causes the Lower Half problem dark than the first half of frame.
Present embodiment be the pairing pixel of all sweep traces with the 21st scanning area B21 at first to transfer dark attitude to be example, in the practical application, can at first transfer the pairing pixel of arbitrary scanning area in 42 scanning areas to dark attitude.For example, in another embodiment, the pairing pixel of all sweep traces at the 11st scanning area B11 at first transfers dark attitude to, promptly ought be positioned at the black plug line period TI1 of the 1st scanning area period, pairing all pixels of the sweep trace of the 11st scanning area B11 all transfer dark attitude to, and all the other insert the action and aforementioned the duplicating of black frame.And in the frame period sequential synoptic diagram shown in Fig. 4 A, the black plug line period of each scanning area period is first line period of each scanning area period.In practical application, the black plug line period of each scanning area period can be in any position of each scanning area period.
Fig. 4 B shows another sequential synoptic diagram of the frame period of the LCD among Fig. 3 A.This LCD is at a frame period T
DAn interior frame, the frame period T of showing
D Comprise 1024 sweep trace period TS1～TS1024 and a blank period.These 1024 sweep trace period TS1～TS1024 are divided into 42 scanning area periods, respectively to 42 scanning area B1～B42 of viewing area that should display.Each scanning area all had a black plug line period before the period.Make the 1st scanning area period TB1 ' include for 24 (to 1024/42 round numbers) individual sweep trace periods to the 41st scanning area period TB41 ', the 42nd scanning area period TB42 ' comprises 40 (the individual sweep trace period of 1024-24 * 41=40).The 1st scanning area period TB1 ' is the 1st black plug line period TI1 ' before, and the 2nd scanning area period TB2 ' is the 2nd black plug line period TI2 ' before, and the rest may be inferred for the relation of all the other scanning area periods and black plug line period.
In Fig. 4 B, when this LCD scanning one frame, at first, when being positioned at the 1st black plug line period TI1 ', the pairing pixel of all sweep traces of the 21st scanning area B21 all transfers dark attitude to.Then, as first sweep trace period TS1 that is positioned at the 1st scanning area period TB1 ', the 1st sweep trace S1 of this LCD is enabled.As next the sweep trace period TS2 that is positioned at the 1st scanning area period TB1 ', the 2nd sweep trace S2 is enabled.Afterwards, the everything of the 1st scanning area period TB1 ' by that analogy.Next, when being positioned at the 2nd black plug line period TI2 ', the pairing pixel of all sweep traces of the 22nd scanning area B22 all transfers dark attitude to.Afterwards, the everything of the second scanning area period TB2 ' and the 1st scanning area period TB1 are identical, repeat no more herein.
When being positioned at the 22nd black plug line period TI22 ', all pixels corresponding with the sweep trace of the 42nd scanning area B42 all transfer dark attitude to.Then, when being positioned at the 23rd black plug line period TI23 ', all pixels corresponding with the sweep trace of the 1st scanning area B1 all transfer dark attitude to.When being positioned at the 24th black plug line period TI24 ', all pixels corresponding with the sweep trace of the 2nd scanning area B2 all transfer dark attitude to.Afterwards, the action of all black plug frames by that analogy.
In Fig. 4 B, be example before be arranged in each scanning area period each black plug line period, in the practical application, also each black plug line period can be arranged in each scanning area after the period.And present embodiment be the pairing pixel of all sweep traces with the 21st scanning area B21 at first to transfer dark attitude to be example, in the practical application, can at first transfer the pairing pixel of arbitrary scanning area in 42 scanning areas to dark attitude.For example, in another embodiment, at first transfer dark attitude to, promptly ought be positioned at the 1st black plug line period TI1 ' in the pairing pixel of all sweep traces of the 11st scanning area B 11, pairing all pixels of the sweep trace of the 11st scanning area B11 all transfer dark attitude to, and all the other insert the action and aforementioned the duplicating of black frame.
LCD of the present invention can be normal white (normally white) or normal black (normally black) display.This LCD comprises scanner driver, in order to drive these sweep traces of these scanning areas, this scanner driver comprises first shift register and second shift register, and first shift register is in order to the control black plug line period, and second shift register is in order to the gated sweep line period.The number of the sweep trace that each scanning area comprised of this LCD not necessarily equates.
Fig. 5 illustrates the driving method process flow diagram in a frame according to the embodiment of the invention.Driving method of the present invention is used for LCD, and the viewing area of this LCD has M scanning area, and each scanning area comprises several sweep traces.The viewing area shows that the period of a frame is the frame period, and the frame period is divided into a plurality of scanning area periods, respectively corresponding each scanning area, and each scanning area period comprises a black plug line period and a plurality of sweep trace period.At first, in step 400,, whether judge (S+N) greater than M when the black plug period of the S scanning area that is arranged in this M scanning area, N be between 1 and M between positive integer.If this method proceeds to step 410 not; If yes, this method proceeds to step 440.In step 410, transfer the pairing pixel of all sweep traces of (S+N) scanning area to dark attitude.In step 440, transfer all pixels of (S+N-M) scanning area in M the scanning area to dark attitude.Next, in step 420, when the sweep trace period that is positioned at the S scanning area, the sweep trace of S scanning area is enabled in regular turn.In step 430, judge whether the pixel of all scanning areas had all changed dark attitude.If yes, expression is inserted a black frame at a frame in the period, and this method finishes; If not, expression still has scanning area not change dark attitude, and this method proceeds to step 450.In step 450, S increases progressively 1, promptly in the above-mentioned steps of next scanning area period method iterates, has all changed dark attitude up to the pixel of all scanning areas.
For example, the M of above-mentioned method flow diagram is 42, N is 20, and when being positioned at the 1st scanning area period (being that S is 1), step 400 is for not, therefore when the black plug line period that be positioned at for the 1st scanning area period, transfers the pairing pixel of all sweep traces of the 21st scanning area to dark attitude.When the sweep trace period that is positioned at the 1st scanning area, the sweep trace of the 1st scanning area is enabled.When being positioned at for the 23rd scanning area period, step 400 represents that for being back 22 scanning areas of these 42 scanning areas had all been changed dark attitude, must transfer preceding 20 scanning areas to dark attitude.Therefore when the black plug line period of the 23rd scanning area, transfer the pairing pixel of all sweep traces of the 1st scanning area to dark attitude.
The black plug line period of each scanning area period of the foregoing description is first line period of each scanning area period.In practical application, the black plug line period of each scanning area period can be in any position of each scanning area period.
LCD of the present invention utilizes the blank time in its frame time that shows a frame to insert black frame, and the viewing area of LCD is divided into a plurality of scanning areas, with this blank time mean allocation to each scanning area.By once transferring the pixel in one scan district to dark attitude, realize inserting the effect of black frame, and need not improve the frame update rate, and can solve the Lower Half problem dark of the frame of conventional liquid crystal than the first half.
In sum, though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.The technical staff in the technical field of the invention, without departing from the spirit and scope of the present invention, when doing various changes and retouching.Therefore, protection scope of the present invention is as the criterion when looking the accompanying Claim person of defining.
Claims (10)
1, a kind of LCD in order to show a frame in a frame period, comprising:
M scanning area, each described scanning area comprises the multi-strip scanning line, the corresponding row pixel of each described sweep trace, M is a positive integer;
Wherein, this frame period comprises M scanning area period, respectively corresponding described these scanning areas, and the scanning area period of each described scanning area comprises a plurality of line periods, described these line periods comprise a black plug line period and a plurality of sweep trace period; When this black plug line period of the S scanning area period that is arranged in described these scanning area periods, the pairing pixel of described these sweep traces of (S+N) scanning area of described these scanning areas transfers dark attitude to, when described these sweep trace periods that are positioned at this S scanning area period, described these sweep traces of this S scanning area are enabled; S is the positive integer that is less than or equal to M, and N is the positive integer that is less than or equal to M.
2, LCD as claimed in claim 1, wherein, as (S+N) during greater than M, when this black plug line period that is positioned at the S scanning area, the pairing pixel of described these sweep traces of this (S+N-M) scanning area transfers dark attitude to.
3, LCD as claimed in claim 1, wherein, described f the line period of these lines in the period is this black plug line period, f is a positive integer.
4, LCD as claimed in claim 1, wherein the time span of described these line periods of the scanning area period of each described scanning area equates.
5, LCD as claimed in claim 1, wherein each described black plug line period is the part in the blank period (blanking time).
6, LCD as claimed in claim 1, wherein the quantity of described these sweep traces that each described scanning area comprised equates.
7, LCD as claimed in claim 1, wherein the quantity of described these sweep traces that each described scanning area comprised is unequal.
8, LCD as claimed in claim 1, wherein this LCD comprises scanner driver, in order to drive described these sweep traces of described these scanning areas, this scanner driver comprises:
First shift register is in order to control described these black plug line periods; And
Second shift register is in order to control described these sweep trace periods.
9, a kind of driving method, in order to driving display, this display has the viewing area, and this viewing area is divided into M scanning area, and each described scanning area comprises the multi-strip scanning line, this viewing area shows that the period of a frame is the frame period, this frame period is divided into M scanning area period, respectively corresponding described these scanning areas, and each described scanning area period comprises a plurality of line periods, described these line periods comprise a black plug line period and a plurality of sweep trace period, and this method comprises:
In this black plug line period of S scanning area period of described these scanning areas, transfer the pairing pixel of described these sweep traces of (S+N) scanning areas of described these scanning areas to dark attitude; And
In described these sweep trace periods of this S scanning area period, enable described these sweep traces of this S scanning area;
Wherein, M is a positive integer, and S is the positive integer that is less than or equal to M, and N is the positive integer that is less than or equal to M.
10, a kind of driving method, with the frame data driving display, this display comprises first scanning area and second scanning area, and this driving method comprises:
In the first black plug line period this second scanning area is urged to dark attitude;
In the first scanning area period, drive this first scanning area with these frame data of first;
In the second black plug line period this first scanning area is urged to dark attitude; And
In the second scanning area period, drive this second scanning area with these frame data of second portion.
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| CNA2007101025222A CN101308632A (en) | 2007-05-14 | 2007-05-14 | Liquid crystal display and driving method thereof |
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| CNA2007101025222A CN101308632A (en) | 2007-05-14 | 2007-05-14 | Liquid crystal display and driving method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777297B (en) * | 2009-01-09 | 2012-05-30 | 联咏科技股份有限公司 | Display system, source electrode drive device and picture black frame insertion method |
| CN102708835A (en) * | 2012-07-03 | 2012-10-03 | 青岛海信电器股份有限公司 | Drive method of liquid crystal display screen and liquid crystal display |
| CN101923836B (en) * | 2009-06-10 | 2012-11-14 | 瑞鼎科技股份有限公司 | Display device and brightness control method thereof |
| WO2013013443A1 (en) * | 2011-07-22 | 2013-01-31 | 深圳市华星光电技术有限公司 | Liquid crystal display device and black insertion method thereof |
| CN103002296A (en) * | 2011-09-09 | 2013-03-27 | 联咏科技股份有限公司 | Stereoscopic image display method and stereoscopic image display system |
| CN103050102A (en) * | 2012-12-10 | 2013-04-17 | 华映视讯（吴江）有限公司 | Device and method for reducing ghost images displayed on liquid crystal display panel |
| TWI420481B (en) * | 2009-06-01 | 2013-12-21 | Raydium Semiconductor Corportation | Display device and brightness adjusting method |
| CN104050931A (en) * | 2013-03-11 | 2014-09-17 | 青岛海信电器股份有限公司 | Method for reducing trailing phenomenon of liquid crystal screen and liquid crystal display device |
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2007
- 2007-05-14 CN CNA2007101025222A patent/CN101308632A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777297B (en) * | 2009-01-09 | 2012-05-30 | 联咏科技股份有限公司 | Display system, source electrode drive device and picture black frame insertion method |
| TWI420481B (en) * | 2009-06-01 | 2013-12-21 | Raydium Semiconductor Corportation | Display device and brightness adjusting method |
| CN101923836B (en) * | 2009-06-10 | 2012-11-14 | 瑞鼎科技股份有限公司 | Display device and brightness control method thereof |
| WO2013013443A1 (en) * | 2011-07-22 | 2013-01-31 | 深圳市华星光电技术有限公司 | Liquid crystal display device and black insertion method thereof |
| CN103002296A (en) * | 2011-09-09 | 2013-03-27 | 联咏科技股份有限公司 | Stereoscopic image display method and stereoscopic image display system |
| CN102708835A (en) * | 2012-07-03 | 2012-10-03 | 青岛海信电器股份有限公司 | Drive method of liquid crystal display screen and liquid crystal display |
| CN103050102A (en) * | 2012-12-10 | 2013-04-17 | 华映视讯（吴江）有限公司 | Device and method for reducing ghost images displayed on liquid crystal display panel |
| CN104050931A (en) * | 2013-03-11 | 2014-09-17 | 青岛海信电器股份有限公司 | Method for reducing trailing phenomenon of liquid crystal screen and liquid crystal display device |
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