CN103050102A - Device and method for reducing ghost images displayed on liquid crystal display panel - Google Patents
Device and method for reducing ghost images displayed on liquid crystal display panel Download PDFInfo
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- CN103050102A CN103050102A CN201210528089XA CN201210528089A CN103050102A CN 103050102 A CN103050102 A CN 103050102A CN 201210528089X A CN201210528089X A CN 201210528089XA CN 201210528089 A CN201210528089 A CN 201210528089A CN 103050102 A CN103050102 A CN 103050102A
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Abstract
The invention provides a device for reducing ghost images displayed on a liquid crystal display panel. The liquid crystal display panel is separated into a plurality of sections. The device comprises a look-up table and a time schedule controller. The look-up table is used for storing an output enable signal corresponding to each section in the sections, wherein each output enable signal corresponds to a preset work period; and the time schedule controller is used for receiving stereoscopic image data corresponding to the section, reading the output enable signal corresponding to the section from the look-up table, and outputting the output enable signal corresponding to the section and the stereoscopic image data corresponding to the section to the liquid crystal display panel.
Description
Technical field
The invention relates to the devices and methods therefor that a kind of liquid crystal panel shows, espespecially a kind of devices and methods therefor that reduces liquid crystal panel demonstration ghost.
Background technology
In the display technique of existing shutter stereo glasses, on image display, there is the problem of ghost (Ghost) to exist.Please refer to Fig. 1, Fig. 1 is left-eye images L, right-eye image R, the liquid crystal reaction time RT of stereopsis of explanation stereopsis, sweep trace L1-LN, the left eyeglass lens GL of shutter glasses, the right eye eyeglass GR of shutter glasses and the schematic diagram of blank time (blanking time) BT of liquid crystal panel.As shown in Figure 1, at period T1, when right eye eyeglass GR opens, corresponding to the liquid crystal of sweep trace LN not yet transition finish (shown in the dotted line frame among Fig. 1), that is still be in the state of switching corresponding to the data of sweep trace LN.Therefore, the observer sees through the left-eye images L that right eye eyeglass GR still can see part.In like manner, when left eyeglass lens GL opened, the observer saw through the right-eye image R that left eyeglass lens GL also can see part.So, when the display technique of existing shutter stereo glasses can make the observer watch stereopsis, see ghost.Yet the problem of ghost can affect under stereopsis quality and long-time the use and can cause the observer uncomfortable.
Summary of the invention
One embodiment of the invention provide a kind of device that shows ghost in order to reduce liquid crystal panel, and wherein this liquid crystal panel is divided into plurality of blocks.This device comprises a look-up table and time schedule controller.This look-up table is in order to the output enable signal of storage corresponding to each block in this plurality of blocks, and wherein each output enable signal is corresponding to a predetermined work period; This time schedule controller is in order to receive the stereopsis data corresponding to this block, read output enable signal corresponding to this block from this look-up table, and output corresponding to the output enable signal of this block and corresponding to the stereopsis data of this block to this liquid crystal panel.
Another embodiment of the present invention provides a kind of device that shows ghost in order to reduce liquid crystal panel.This device comprises a picture buffer and time schedule controller.This time schedule controller is in order to the stereopsis data of reception corresponding to a picture, and according to a timing control signal modulation function, stores these stereopsis data to this picture buffer; This picture buffer rearranges the sequential of these stereopsis data, generation is corresponding to the first stereopsis data of this picture, and this time schedule controller is exported these the first stereopsis data and to signal that should the first stereopsis data to this liquid crystal panel.
Another embodiment of the present invention provides a kind of method that shows ghost in order to reduce liquid crystal panel, wherein this liquid crystal panel is divided into plurality of blocks, comprise a look-up table and time schedule controller with one in order to the device that reduces liquid crystal panel demonstration ghost, wherein this look-up table stores the output enable signal corresponding to each block in this plurality of blocks, and each output enable signal is corresponding to a predetermined work period.The method comprises this time schedule controller and receives stereopsis data; This time schedule controller reads output enable signal corresponding to each block this plurality of blocks from this look-up table; The output of this time schedule controller corresponding to the output enable signal of this block and corresponding to the stereopsis data of this block to this liquid crystal panel.
Another embodiment of the present invention provides a kind of method that shows ghost in order to reduce liquid crystal panel, and wherein one shows that in order to reduce liquid crystal panel the device of ghost comprises a picture buffer and time schedule controller.The method comprises this time schedule controller reception corresponding to the stereopsis data of a picture; According to a timing control signal modulation function, store these stereopsis data to this picture buffer; This picture buffer rearranges the sequential of these stereopsis data, produces the first stereopsis data corresponding to this picture; This time schedule controller export these the first stereopsis data and to signal that should the first stereopsis data to this liquid crystal panel.
The invention provides and a kind ofly show the device of ghost and relevant method thereof in order to reduce liquid crystal panel.This device and the method are to utilize the time schedule controller reception corresponding to stereopsis data of the plurality of blocks of this liquid crystal panel, then, this time schedule controller reads output enable signal corresponding to each block this plurality of blocks from a look-up table, and output corresponding to the output enable signal of each block and corresponding to the stereopsis data of each block to this liquid crystal panel.Another embodiment of the present invention is to utilize the time schedule controller reception corresponding to the stereopsis data of a picture, and according to this timing control signal modulation function, stores this stereopsis data to a picture buffer.Then, this picture buffer rearranges the sequential of these stereopsis data, generation is corresponding to the first stereopsis data of this picture, and this time schedule controller is exported these the first stereopsis data and to signal that should the first stereopsis data to this liquid crystal panel.Therefore, compared to prior art, the present invention can make near the sweep trace of this liquid crystal panel below and more early open, and allows liquid crystal do sth. in advance transition.Therefore, when a left eyeglass lens of a shutter glasses switches to a right eye eyeglass, because corresponding to the ahead of time transition of liquid crystal near the sweep trace below this liquid crystal panel, see that the ghost of a left-eye images will be lowered so an observer sees through this right eye eyeglass.In like manner, when this left eyeglass lens was opened, this observer saw through this left eyeglass lens and sees that the ghost of a right-eye image also can be lowered.
Description of drawings
Fig. 1 is the left-eye images of explanation stereopsis, right-eye image, liquid crystal reaction time, the sweep trace of liquid crystal panel, the left eyeglass lens of shutter glasses, the right eye eyeglass of shutter glasses and the schematic diagram of blank time of stereopsis.
Fig. 2 is a kind of schematic diagram that shows the device of ghost in order to reduce liquid crystal panel of one embodiment of the invention explanation.
Fig. 3 is for the explanation output enable signal, corresponding to the schematic diagram of the signal of 5 blocks.
Fig. 4 is for to illustrate the left-eye images of stereopsis, right-eye image, liquid crystal reaction time, the sweep trace of liquid crystal panel, the left eyeglass lens of shutter glasses, the right eye eyeglass of shutter glasses and the schematic diagram of blank time of stereopsis according to the embodiment of Fig. 2.
Fig. 5 is a kind of schematic diagram that shows the device of ghost in order to reduce liquid crystal panel of another embodiment of the present invention explanation.
Fig. 6 is for explanation bidimensional image data and corresponding to the sequential schematic diagram of the output enable signal of bidimensional image data.
Fig. 7 is for explanation stereopsis data and corresponding to the sequential schematic diagram of the output enable signal of stereopsis data.
Right eye eyeglass, the blank time of the sweep trace of the right-eye image of the left-eye images of the stereopsis of Fig. 8 for right-eye image that left-eye images, the stereopsis of stereopsis are described according to the embodiment of Fig. 5, after rearranging, the stereopsis after rearranging, liquid crystal reaction time, liquid crystal panel, the left eyeglass lens of shutter glasses, shutter glasses and rearrange after the schematic diagram of blank time.
Fig. 9 is a kind of process flow diagram that shows the method for ghost in order to reduce liquid crystal panel of another embodiment of the present invention explanation.
Figure 10 is a kind of process flow diagram that shows the method for ghost in order to reduce liquid crystal panel of another embodiment of the present invention explanation.
[primary clustering symbol description]
100 liquid crystal panels
The 101-105 block
200,500 devices
202 look-up tables
204,504 time schedule controllers
502 picture buffer
BT, RBT blank time
FID the first stereopsis data
The GL left eyeglass lens
GR right eye eyeglass
The G1-G5 signal
ID stereopsis data
The L left-eye images
The L1-LN sweep trace
OE1-OE5, OE, OE ' output enable signal
The R right-eye image
The RT liquid crystal reaction time
The T1 period
900-912,1000-1012 step
Embodiment
Please refer to Fig. 2, Fig. 2 is a kind of schematic diagram that shows the device 200 of ghost in order to reduce liquid crystal panel 100 of one embodiment of the invention explanation, wherein liquid crystal panel 100 is to be divided into 5 block 101-105 from top to bottom, is divided into 5 block 101-105 but the present invention is not limited to liquid crystal panel 100.Device 200 comprises a look-up table 202 and time schedule controller 204.As shown in Figure 2, look-up table 202 is in order to the output enable signal of storage corresponding to each block among 5 block 101-105, and wherein each output enable signal is corresponding to a predetermined work period.That is the work period of each output enable signal is the work period that is different from other output enable signal.Time schedule controller 204 is in order to from a graphic process unit (Graphic Processing Unit, GPU) or a display card receive in each picture stereopsis data ID corresponding to 5 block 101-105, read output enable signal corresponding to each block 5 block 101-105 from look-up table 202, and output corresponding to the output enable signal of each block and corresponding to the stereopsis data of each block to liquid crystal panel 100, wherein the stereopsis data ID comprises left-eye images data and right-eye image data alternately.So, liquid crystal panel 100 can be according to should in the output enable signal of each block with corresponding to the stereopsis data of each block, showing the stereopsis data corresponding to each block.
Please refer to table 1, table 1 for explanation in the present invention corresponding to the activation time ratio of the output enable signal OE1-OE5 of each block among 5 block 101-105.Because the stereopsis data corresponding to block 101 write to first liquid crystal panel 100, so the activation time ratio of output enable signal OE1 is 100%; Because the stereopsis data corresponding to block 105 are to write at last liquid crystal panel 100, so the activation time ratio of output enable signal OE5 is 70%.That is because be according to the negative edge activation corresponding to the output enable signal of each block corresponding to the signal of each block among 5 block 101-105, so corresponding to activation time of the output enable signal of each block than shorter, then more early begin to make liquid crystal transition in the block corresponding to the signal of each block.
| OE1 | OE2 | OE3 | OE4 | |
| 100% | 95% | 90% | 80% | 70% |
Table 1
Please refer to Fig. 3, Fig. 3 is explanation output enable signal OE1-OE5, corresponding to the schematic diagram of the signal G1-G5 of 5 block 101-105.Such as table 1 and shown in Figure 3, because the activation time of output enable signal OE1-OE5 is than sequentially reducing gradually, so sequentially do sth. in advance gradually activation corresponding to the signal G1-G5 of 5 block 101-105.That is because be to write at last liquid crystal panel 100 corresponding to the stereopsis data of block 105, so the activation time ratio of output enable signal OE5 is 70%, cause signal G5 to be enabled ahead of time, so that the liquid crystal in the block 105 are done sth. in advance transition.
Please refer to Fig. 4, Fig. 4 is for to illustrate the left-eye images L of stereopsis, right-eye image R, the liquid crystal reaction time RT of stereopsis, sweep trace L1-LN, the left eyeglass lens GL of shutter glasses, the right eye eyeglass GR of shutter glasses and the schematic diagram of blank time BT of liquid crystal panel according to the embodiment of Fig. 2.As shown in Figure 4, at period T1, when right eye eyeglass GR opens, because signal G5 is enabled ahead of time, so ahead of time transition of the liquid crystal in the block 105.For example, sweep trace LN is corresponding to block 105, so sweep trace LN can be enabled ahead of time according to signal G5, causes doing sth. in advance transition (shown in the dotted line frame among Fig. 4) corresponding to the liquid crystal of sweep trace LN.That is can more early open the closer to the sweep trace of liquid crystal panel 100 belows, and allow liquid crystal do sth. in advance transition.Therefore, when the left eyeglass lens GL of shutter glasses switches to right eye eyeglass GR (that is left eyeglass lens GL closes and right eye eyeglass GR opens), because corresponding to the ahead of time transition of liquid crystal near the sweep trace of liquid crystal panel 100 belows, see that the ghost of left-eye images L will be lowered so the observer sees through right eye eyeglass GR.In like manner, when left eyeglass lens GL opened, the observer saw through left eyeglass lens GL and sees that the ghost of right-eye image R also can be lowered.
Please refer to table 2, table 2 for explanation in the present invention, when time schedule controller 204 receives bidimensional image data, corresponding to the activation time ratio of the output enable signal OE1-OE5 of each block among 5 block 101-105.Because the bidimensional image data are not distinguished into left-eye images data and right-eye image data, so when left eyeglass lens GL switched to right eye eyeglass GR (that is left eyeglass lens GL closes and right eye eyeglass GR open) or right eye eyeglass GR and switches to left eyeglass lens GL (that is right eye eyeglass GR closes and left eyeglass lens GL opens), the observer saw through left eyeglass lens GL or sees through right eye eyeglass GR and can not see any ghost.Therefore, time schedule controller 204 is exported respectively output enable signal OE1 ' with same duty cycle-OE5 ' (that is the activation time of output enable signal OE1 '-OE5 ' is than identical) to 5 block 101-105.That is because the bidimensional image data are not distinguished into left-eye images data and right-eye image data, so the work period of output enable signal OE1 '-OE5 ' is all identical, and do not need to allow the liquid crystal near liquid crystal panel 100 belows do sth. in advance transition.
| OE1’ | OE2’ | OE3’ | OE4’ | OE5’ |
| 100% | 100% | 100% | 100% | 100% |
Table 2
Please refer to Fig. 5, Fig. 5 is a kind of schematic diagram that shows the device 500 of ghost in order to reduce liquid crystal panel 100 of another embodiment of the present invention explanation.Device 500 comprises a picture buffer 502 and time schedule controller 504.As shown in Figure 5, time schedule controller 504 is in order to receive the stereopsis data ID corresponding to a picture from a graphic process unit or a display card, and according to a timing control signal modulation function, store the stereopsis data ID to picture buffer 502, wherein the stereopsis data ID comprises left-eye images data and right-eye image data alternately.After picture buffer 502 receives the stereopsis data ID, picture buffer 502 rearranges the sequential of stereopsis data ID, generation is corresponding to one first stereopsis data FID of picture, and the signal (for example enable signal of reset signal, data line or polar signal) of time schedule controller 504 output the first stereopsis data FID and corresponding the first stereopsis data FID is to liquid crystal panel 100 afterwards.So, liquid crystal panel 100 can according to the signal of the first stereopsis data FID and corresponding the first stereopsis data FID, show the first stereopsis data FID.
Please refer to Fig. 6 and Fig. 7, Fig. 6 is for explanation bidimensional image data and corresponding to the sequential schematic diagram of the output enable signal OE of bidimensional image data, and Fig. 7 is for explanation stereopsis data FID and corresponding to the sequential schematic diagram of the output enable signal OE ' of stereopsis data FID.When time schedule controller 504 receives the bidimensional image data, time schedule controller 504 closing timing control signal modulation functions, and output bidimensional image data are to liquid crystal panel 100.Therefore, as shown in Figure 6, because time schedule controller 504 closing timing control signal modulation functions, so the data writing corresponding to each sweep trace of liquid crystal panel 100 in the bidimensional image data interval (for example dataL1, dataL2 ..., dataLN etc.) and also can not be adjusted corresponding to the length of the blank time BT (comprising VB between the interval HB of vertical blank and horizontal clear area) of each sweep trace.Certainly, the sequential corresponding to the output enable signal OE of bidimensional image data also can not be adjusted.
But when time schedule controller 504 received the stereopsis data ID, time schedule controller 504 was opened the timing control signal modulation function.Therefore, as shown in Figure 7, because time schedule controller 504 is opened the timing control signal modulation function, so picture buffer 502 adjust the stereopsis data ID in corresponding to the blank time BT of a plurality of sweep traces L1-L (N-1) of liquid crystal panel 100, to produce the first stereopsis data FID, that is the interval (dataL1 for example of the data writing corresponding to each sweep trace of liquid crystal panel 100 in the stereopsis data ID, dataL2 ... dataLN etc.) can not be adjusted, but then can be adjusted to the length of blank time BT ' corresponding to the length of the blank time BT (comprising VB between the interval HB of vertical blank and horizontal clear area) of each sweep trace of a plurality of sweep traces L1-L (N-1), wherein 0＜=BT ’＜=BT, and picture buffer 502 is the interval HB of vertical blank that adjust in the blank time BT.But the interval HB of vertical blank that the present invention is not limited in the blank time BT is adjusted.In addition, the time (blank time BT deducts blank time BT ') that is shortened corresponding to each sweep trace of a plurality of sweep traces L1-L (N-1) will be added into former blank time BT corresponding to sweep trace LN, to produce the new blank time BT corresponding to sweep trace LN " (as shown in Figure 7).Therefore, compared to the sequential of the bidimensional image data of Fig. 6, in Fig. 7, corresponding to the new blank time BT of sweep trace LN " shifted to an earlier date, so can be ahead of time by transition corresponding to the liquid crystal of sweep trace LN.But the present invention is not limited to picture buffer 502 only prolongs blank time BT corresponding to sweep trace LN, that is the deviser of liquid crystal panel 100 can according to the actual requirements, make picture buffer 502 prolongations corresponding to the blank time of a plurality of sweep traces of liquid crystal panel 100 belows.
Please refer to Fig. 8, the left eyeglass lens GL of right-eye image RR, the liquid crystal reaction time RT of the left-eye images RL of the stereopsis of Fig. 8 for right-eye image R that left-eye images L, the stereopsis of stereopsis are described according to the embodiment of Fig. 5, after rearranging, the stereopsis after rearranging, the sweep trace L1-LN of liquid crystal panel, shutter glasses, right eye eyeglass GR, the blank time BT of shutter glasses and rearrange after the schematic diagram of blank time RBT.As shown in Figure 8, at period T1, because the liquid crystal corresponding to sweep trace LN is done sth. in advance transition, so when the left eyeglass lens GL of shutter glasses switches to right eye eyeglass GR (that is left eyeglass lens GL closes and right eye eyeglass GR opens), because corresponding to the ahead of time transition of liquid crystal of sweep trace LN, see that the ghost of left-eye images L will be lowered so the observer sees through right eye eyeglass GR.But the present invention is not limited to do sth. in advance transition corresponding to the liquid crystal of sweep trace LN.That is the liquid crystal of a plurality of sweep traces of close liquid crystal panel 100 belows also can be done sth. in advance transition.Therefore, when the left eyeglass lens GL of shutter glasses switches to right eye eyeglass GR (that is left eyeglass lens GL closes and right eye eyeglass GR opens), because corresponding to the ahead of time transition of liquid crystal near a plurality of sweep traces of liquid crystal panel 100 belows, see that the ghost of left-eye images L will be lowered so the observer sees through right eye eyeglass GR.In like manner, when left eyeglass lens GL opened, the observer saw through left eyeglass lens GL and sees that the ghost of right-eye image R also can be lowered.
Please refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 9, Fig. 9 is a kind of process flow diagram that shows the method for ghost in order to reduce liquid crystal panel of another embodiment of the present invention explanation.The method of Fig. 9 is to utilize device 200 and liquid crystal panel 100 explanations of Fig. 2, and detailed step is as follows:
Step 900: beginning;
Step 902: time schedule controller 204 receives an image data;
Step 904: whether the image data that time schedule controller 204 receives is a stereopsis data ID; If so, carry out step 906, if not, carry out step 910;
Step 906: time schedule controller 204 reads output enable signal corresponding to each block the plurality of blocks of liquid crystal panel 100 from look-up table 202;
Step 908: time schedule controller 204 output corresponding to the output enable signal of each block and corresponding to the stereopsis data of each block to liquid crystal panel 100, rebound step 902;
Step 910: when time schedule controller 204 received bidimensional image data, time schedule controller 204 outputs one were corresponding to the output enable signal of the bidimensional image data plurality of blocks to liquid crystal panel 100, rebound step 902.
In step 902, time schedule controller 204 receives image data from a graphic process unit or a display card.Liquid crystal panel 100 is to be divided into 5 block 101-105 from top to bottom, and look-up table 202 stores the output enable signal corresponding to each block among 5 block 101-105, and wherein each output enable signal is corresponding to a predetermined work period.That is the work period of each output enable signal is the work period that is different from other output enable signal.But the present invention is not limited to liquid crystal panel 100 is divided into 5 block 101-105.In step 906, when time schedule controller 204 when graphic process unit or display card receive each picture stereopsis data I D corresponding to 5 block 101-105, time schedule controller 204 reads output enable signal corresponding to each block 5 block 101-105 from look-up table 202, and wherein the stereopsis data ID comprises left-eye images data and right-eye image data alternately.In step 908, time schedule controller 204 after look-up table 202 reads output enable signal corresponding to each block 5 block 101-105, time schedule controller 204 outputs corresponding to the output enable signal of each block and corresponding to the stereopsis data of each block to liquid crystal panel 100.So, liquid crystal panel 100 can be according to should in the output enable signal of each block with corresponding to the stereopsis data of each block, showing the stereopsis data corresponding to each block.
As shown in table 1, because write to first liquid crystal panel 100 corresponding to the stereopsis data of block 101, so the activation time ratio of output enable signal OE1 is 100%; Because the stereopsis data corresponding to block 105 are to write at last liquid crystal panel 100, so the activation time ratio of output enable signal OE5 is 70%.That is because be according to the negative edge activation corresponding to the output enable signal of each block corresponding to the signal of each block among 5 block 101-105, so corresponding to activation time of the output enable signal of each block than shorter, then more early begin to make liquid crystal transition in the block corresponding to the signal of each block.Such as table 1 and shown in Figure 3, because the activation time of output enable signal OE1-OE5 is than sequentially reducing gradually, so sequentially do sth. in advance gradually activation corresponding to the signal G1-G5 of 5 block 101-105.That is because be to write at last liquid crystal panel 100 corresponding to the stereopsis data of block 105, so the activation time ratio of output enable signal OE5 is 70%, cause signal G5 to be enabled ahead of time, so that the liquid crystal in the block 105 are done sth. in advance transition.
As shown in Figure 4, at period T1, when right eye eyeglass GR opens, because signal G5 is enabled ahead of time, so ahead of time transition of the liquid crystal in the block 105.For example, sweep trace LN is corresponding to block 105, so sweep trace LN can be enabled ahead of time according to signal G5, causes doing sth. in advance transition (shown in the dotted line frame among Fig. 4) corresponding to the liquid crystal of sweep trace LN.That is can more early open the closer to the sweep trace of liquid crystal panel 100 belows, and allow liquid crystal do sth. in advance transition.Therefore, when the left eyeglass lens GL of shutter glasses switches to right eye eyeglass GR (that is left eyeglass lens GL closes and right eye eyeglass GR opens), because corresponding to the ahead of time transition of liquid crystal near the sweep trace of liquid crystal panel 100 belows, see that the ghost of left-eye images L will be lowered so the observer sees through right eye eyeglass GR.In like manner, when left eyeglass lens GL opened, the observer saw through left eyeglass lens GL and sees that the ghost of right-eye image R also can be lowered.
In addition, in step 910, when time schedule controller 204 receives the bidimensional image data, because the bidimensional image data are not distinguished into left-eye images data and right-eye image data, so when left eyeglass lens GL switched to right eye eyeglass GR (that is left eyeglass lens GL closes and right eye eyeglass GR open) or right eye eyeglass GR and switches to left eyeglass lens GL (that is right eye eyeglass GR closes and left eyeglass lens GL opens), the observer saw through left eyeglass lens GL or sees through right eye eyeglass GR and can not see any ghost.Therefore, as shown in table 2, time schedule controller 204 is exported respectively output enable signal OE1 ' with same duty cycle-OE5 ' (that is the activation time of output enable signal OE1 '-OE5 ' is than identical) to 5 block 101-105.That is because the bidimensional image data are not distinguished into left-eye images data and right-eye image data, so the work period of output enable signal OE1 '-OE5 ' is all identical, and do not need to allow the liquid crystal near liquid crystal panel 100 belows do sth. in advance transition.
Please refer to Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Figure 10, Figure 10 illustrates a kind of process flow diagram that shows the method for ghost in order to reduce liquid crystal panel in addition ㄧ embodiment of the present invention.The method of Figure 10 is to utilize device 500 and liquid crystal panel 100 explanations of Fig. 5, and detailed step is as follows:
Step 1000: beginning;
Step 1002: time schedule controller 504 receives an image data;
Step 1004: whether the image data that time schedule controller 504 receives is a stereopsis data ID; If so, carry out step 1006, if not, carry out step 1012;
Step 1006: time schedule controller 504 stores the stereopsis data ID to picture buffer 502 according to a timing control signal modulation function;
Step 1008: picture buffer 502 rearranges the sequential of stereopsis data ID, produces the first corresponding stereopsis data FID;
Step 1010: the signal of time schedule controller 504 output the first stereopsis data FID and corresponding the first stereopsis data FID is to liquid crystal panel 100, rebound step 1002;
Step 1012: when time schedule controller 504 receives bidimensional image data, time schedule controller 504 closing timing control signal modulation functions, and export the bidimensional image data to liquid crystal panel 100, rebound step 1002.
In step 1002, time schedule controller 504 receives image data from a graphic process unit or a display card.In step 1006, as shown in Figure 5, time schedule controller 504 receives stereopsis data ID corresponding to a picture from a graphic process unit or a display card, and according to the timing control signal modulation function, store the stereopsis data ID to picture buffer 502, wherein the stereopsis data ID comprises left-eye images data and right-eye image data alternately.In step 1008, after picture buffer 502 received the stereopsis data ID, picture buffer 502 rearranged the sequential of stereopsis data ID, produced the first stereopsis data FID corresponding to picture.When time schedule controller 504 received the stereopsis data ID, time schedule controller 504 was opened the timing control signal modulation function.Therefore, as shown in Figure 7, because time schedule controller 504 is opened the timing control signal modulation function, so picture buffer 502 adjust the stereopsis data ID in corresponding to the blank time BT of a plurality of sweep traces L1-L (N-1) of liquid crystal panel 100, to produce the first stereopsis data FID, that is the interval (dataL1 for example of the data writing corresponding to each sweep trace of liquid crystal panel 100 in the stereopsis data ID, dataL2 ... dataLN etc.) can not be adjusted, but then can be adjusted to the length of blank time BT ' corresponding to the length of the blank time BT (comprising VB between the interval HB of vertical blank and horizontal clear area) of each sweep trace of a plurality of sweep traces L1-L (N-1), wherein 0＜=BT ’＜=BT, and picture buffer 502 is the interval HB of vertical blank that adjust in the blank time BT.But the interval HB of vertical blank that the present invention is not limited in the blank time BT is adjusted.In addition, the time (blank time BT deducts blank time BT ') that is shortened corresponding to each sweep trace of a plurality of sweep traces L1-L (N-1) will be added into former blank time BT corresponding to sweep trace LN, to produce the new blank time BT corresponding to sweep trace LN " (as shown in Figure 7).Therefore, as shown in Figure 7, corresponding to the new blank time BT of sweep trace LN " shifted to an earlier date, so can be ahead of time by transition corresponding to the liquid crystal of sweep trace LN.But the present invention is not limited to picture buffer 502 only prolongs blank time corresponding to sweep trace LN, that is the deviser of liquid crystal panel 100 can according to the actual requirements, make picture buffer 502 prolongations corresponding to the blank time of a plurality of sweep traces of liquid crystal panel 100 belows.
In step 1010, the signal (for example enable signal of reset signal, data line or polar signal) of time schedule controller 504 output the first stereopsis data FID and corresponding the first stereopsis data FID is to liquid crystal panel 100.Then, liquid crystal panel 100 can according to the signal of the first stereopsis data FID and corresponding the first stereopsis data FID, show the first stereopsis data FID.Therefore, as shown in Figure 8, at period T1, because the liquid crystal corresponding to sweep trace LN is done sth. in advance transition, so when the left eyeglass lens GL of shutter glasses switches to right eye eyeglass GR (that is left eyeglass lens GL closes and right eye eyeglass GR opens), because corresponding to the ahead of time transition of liquid crystal of sweep trace LN, see that the ghost of left-eye images L will be lowered so the observer sees through right eye eyeglass GR.But the present invention is not limited to do sth. in advance transition corresponding to the liquid crystal of sweep trace LN.That is the liquid crystal of a plurality of sweep traces of close liquid crystal panel 100 belows also can be done sth. in advance transition.Therefore, when the left eyeglass lens GL of shutter glasses switches to right eye eyeglass GR (that is left eyeglass lens GL closes and right eye eyeglass GR opens), because corresponding to the ahead of time transition of liquid crystal near a plurality of sweep traces of liquid crystal panel 100 belows, see that the ghost of left-eye images L will be lowered so the observer sees through right eye eyeglass GR.In like manner, when left eyeglass lens GL opened, the observer saw through left eyeglass lens GL and sees that the ghost of right-eye image R also can be lowered.
In step 1012, when time schedule controller 504 receives the bidimensional image data, time schedule controller 504 closing timing control signal modulation functions, and output bidimensional image data are to liquid crystal panel 100.Therefore, as shown in Figure 6, because time schedule controller 504 closing timing control signal modulation functions, so the data writing corresponding to each sweep trace of liquid crystal panel 100 in the bidimensional image data interval (for example dataL1, dataL2 ..., dataLN etc.) and also can not be adjusted corresponding to the length of the blank time BT (comprising VB between the interval HB of vertical blank and horizontal clear area) of each sweep trace.Certainly, the sequential corresponding to the output enable signal OE of bidimensional image data also can not be adjusted.
In sum, provided by the present inventionly show that in order to reduce liquid crystal panel the device of ghost and relevant method thereof are to utilize time schedule controller to receive stereopsis data corresponding to the plurality of blocks of liquid crystal panel, then, time schedule controller reads output enable signal corresponding to each block the plurality of blocks from look-up table, and output corresponding to the output enable signal of each block and corresponding to the stereopsis data of each block to liquid crystal panel; Or device provided by the present invention and relevant method thereof are to utilize time schedule controller to receive stereopsis data corresponding to a picture, and according to the timing control signal modulation function, store the stereopsis data to picture buffer.Then, picture buffer rearranges the sequential of stereopsis data, produce the first stereopsis data corresponding to picture, and time schedule controller is exported the signal of the first stereopsis data and corresponding the first stereopsis data to liquid crystal panel.Therefore, compared to prior art, the present invention can make near the sweep trace of liquid crystal panel below and more early open, and allows liquid crystal do sth. in advance transition.Therefore, when the left eyeglass lens of shutter glasses switches to the right eye eyeglass, because corresponding to the ahead of time transition of liquid crystal near the sweep trace below the liquid crystal panel, see that the ghost of left-eye images will be lowered so the observer sees through the right eye eyeglass.In like manner, when left eyeglass lens was opened, the observer saw through left eyeglass lens and sees that the ghost of right-eye image also can be lowered.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to the present invention's covering scope.
Claims (11)
1. device that shows ghost in order to reduce liquid crystal panel, this liquid crystal panel is divided into plurality of blocks, it is characterized in that, and this device comprises:
One look-up table, in order to store the output enable signal corresponding to each block in this plurality of blocks, wherein each output enable signal is corresponding to a predetermined work period; And
Time schedule controller, in order to receive the stereopsis data corresponding to this block, read output enable signal corresponding to this block from this look-up table, and output corresponding to the output enable signal of this block and corresponding to the stereopsis data of this block to this liquid crystal panel.
2. device as claimed in claim 1 is characterized in that, this liquid crystal panel is to be divided into this plurality of blocks from top to bottom.
3. device as claimed in claim 1 is characterized in that, is according to the negative edge activation corresponding to the output enable signal of this block corresponding to the signal of this block.
4. a device that shows ghost in order to reduce liquid crystal panel is characterized in that, this device comprises:
One picture buffer; And
Time schedule controller in order to the stereopsis data of reception corresponding to a picture, and according to a timing control signal modulation function, stores these stereopsis data to this picture buffer;
Wherein this picture buffer rearranges the sequential of these stereopsis data, generation is corresponding to the first stereopsis data of this picture, and this time schedule controller is exported these the first stereopsis data and to signal that should the first stereopsis data to this liquid crystal panel.
5. device as claimed in claim 4, it is characterized in that, this picture buffer rearranges the sequential of these stereopsis data, generation is corresponding to the first stereopsis data of this picture, for this picture buffer is adjusted in these stereopsis data blank time corresponding to a plurality of sweep traces of this liquid crystal panel.
6. method that shows ghost in order to reduce liquid crystal panel, it is characterized in that, this liquid crystal panel is divided into plurality of blocks, one shows that in order to reduce liquid crystal panel the device of ghost comprises a look-up table and time schedule controller, wherein this look-up table stores the output enable signal corresponding to each block in this plurality of blocks, and each output enable signal is that the method comprises corresponding to a predetermined work period:
This time schedule controller receives stereopsis data;
This time schedule controller reads output enable signal corresponding to each block this plurality of blocks from this look-up table; And
The output of this time schedule controller corresponding to the output enable signal of this block and corresponding to the stereopsis data of this block to this liquid crystal panel.
7. method as claimed in claim 6 is characterized in that, this liquid crystal panel is to be divided into this plurality of blocks from top to bottom, and is sequentially to reduce gradually corresponding to the activation time ratio of a plurality of output enable signals of this plurality of blocks from top to bottom.
8. a method that shows ghost in order to reduce liquid crystal panel is characterized in that, one shows that in order to reduce liquid crystal panel the device of ghost comprises a picture buffer and time schedule controller, and the method comprises:
This time schedule controller receives the stereopsis data corresponding to a picture;
According to a timing control signal modulation function, store these stereopsis data to this picture buffer;
This picture buffer rearranges the sequential of these stereopsis data, produces the first stereopsis data corresponding to this picture; And
This time schedule controller export these the first stereopsis data and to signal that should the first stereopsis data to this liquid crystal panel.
9. method as claimed in claim 8, it is characterized in that, this picture buffer rearranges the sequential of these stereopsis data, generation is corresponding to these the first stereopsis data, for this picture buffer is adjusted in these stereopsis data blank time corresponding to a plurality of sweep traces of this liquid crystal panel, to produce this first stereopsis data.
10. method as claimed in claim 9, it is characterized in that, less than corresponding to the blank time before the adjustment of a plurality of sweep traces of this liquid crystal panel corresponding to the blank time after the adjustment of a plurality of sweep traces of this liquid crystal panel, be greater than corresponding to the blank time before the adjustment of this last item sweep trace corresponding to the blank time after the adjustment of the last item sweep trace of this liquid crystal panel, and be greater than zero corresponding to the blank time after the adjustment of a plurality of sweep traces of this liquid crystal panel.
11. such as claim 6 or 8 described methods, it is characterized in that, these stereopsis data comprise left-eye images data and right-eye image data alternately.
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| CN103050102B (en) | 2014-11-19 |
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