CN101494041A - Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display - Google Patents
Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display Download PDFInfo
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- CN101494041A CN101494041A CNA2009101184726A CN200910118472A CN101494041A CN 101494041 A CN101494041 A CN 101494041A CN A2009101184726 A CNA2009101184726 A CN A2009101184726A CN 200910118472 A CN200910118472 A CN 200910118472A CN 101494041 A CN101494041 A CN 101494041A
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Abstract
The invention relates to a method for reducing the fragment phenomena of a liquid-crystal display caused by dragging and a liquid-crystal display. The method is used in the liquid-crystal display that comprises a plurality of pixels and displays scenes according to the original display data received; at least partial pixels respectively comprise two pixel electrodes to drive a plurality of liquid crystal molecules positioned between the two pixel electrodes. The method comprises the steps of changing the corresponding part used for driving the original display data of pressed pixels positioned in a pressed position so as to cause at least partial liquid crystal molecules corresponding to the pressed pixels to rotate at a natural angle, and maintaining the corresponding part used for driving at least partial original display data of pixels excluding the pressed pixels, wherein, the natural angle is the rotating angle of the liquid crystal molecules finally appearing when no potential difference exists between the two corresponding pixel electrodes.
Description
Technical field
The present invention relates to the display technique field, and particularly relate to a kind of method and LCD that alleviates LCD towing ghost phenomena.
Background technology
LCD because of the tool high image quality, volume is little, in light weight and advantage such as applied range, and be widely used in consumption electronic products such as mobile phone, notebook computer, desktop display and TV, and replaced traditional cathode-ray tube display gradually and become the main flow of display.
When Chang Bai in the known technology (Normal White) mode LCD is deceived picture in demonstration, when external force puts on panel and pulls, the arrangement of the liquid crystal molecule at the feasible place of being depressed of external force changes and can form the smear of white together at the towpoint rear, need just can disappear after waiting liquid crystal arrangement to reply after a while.And institute's externally applied forces is big more, and anti-white influence area is just big more, and this phenomenon is referred to as to pull ghost phenomena (Pooling Mura).Similarly, for normal black (Normal Black) mode LCD, this kind towing ghost phenomena can betide when showing white picture.
Therefore, if the user for example carries out when operation touching pushing display panels, because of instead in vain/the residual picture that makes too for a long time of cracking down upon evil forces can not normally show, or trail distance is when oversize, the user understands easy misidentification display panels infringement, causes to use and goes up inconvenience greatly.
Summary of the invention
One of purpose of the present invention just provides a kind of method that alleviates LCD towing ghost phenomena.
A further object of the present invention provides a kind of LCD, to alleviate the towing ghost phenomena.
A kind of method that alleviates LCD towing ghost phenomena that the embodiment of the invention proposes, be applicable in the LCD that comprises a plurality of pixels, LCD with display frame, comprises separately that to these pixels of small part two pixel electrodes are to drive a plurality of liquid crystal molecules between two pixel electrodes according to the raw display data that is received.The method comprises the following steps: to change originally the counterpart of raw display data that is positioned at the pixel that is pressed at the place of being depressed in order to driving, so that being rotated to the past natural angle of small part in these liquid crystal molecules corresponding with the pixel that is pressed; And keep in order to drive in these pixels the counterpart except that the pixel that is pressed to the raw display data of small part; Wherein, natural angle is the anglec of rotation that liquid crystal molecule finally presents when not having potential difference (PD) between two pixel electrodes of correspondence.
In an embodiment of the present invention, aforesaid method also comprises the following steps: to be provided with Trackpad on LCD; And the position that utilizes the touch point that Trackpad detects judges the pixel that is pressed is what person in these pixels.Wherein, Trackpad can be external labeling type or embedded.
In an embodiment of the present invention, the aforesaid counterpart of raw display data that is positioned at the pixel that is pressed at the place of being depressed in order to driving that changes originally, so that being rotated toward natural angle to small part in these liquid crystal molecules corresponding, comprise the following steps: the counterpart of the raw display data of predetermined two pixel electrodes that are provided to the pixel that is pressed is changed into the adjustment data with the pixel that is pressed; And provide and adjust two pixel voltages of data to the pixel that is pressed; Wherein, the absolute value of the voltage of the counterpart of raw display data is greater than the absolute value of the voltage of adjusting data.Further, the voltage of adjustment data is about 0.
A kind of method that alleviates LCD towing ghost phenomena that yet another embodiment of the invention proposes is applicable in the LCD that comprises a plurality of pixels that arbitrary these pixels have two pixel electrodes.The method comprises the following steps: to make and produces electrically contact between two pixel electrodes of the pixel that is pressed that is positioned at the place of being depressed so that the current potential of two pixel electrodes becomes preset potential simultaneously.Further, the method also can comprise step: Trackpad is set on LCD; And the position that utilizes the touch point that Trackpad detects judges the pixel that is pressed is what person in these pixels.Wherein, Trackpad can be external labeling type or embedded.
A kind of method that alleviates LCD towing ghost phenomena that further embodiment of this invention proposes is applicable in the LCD that comprises a plurality of pixels that LCD receives raw display data, and comprises two pixel electrodes separately to these pixels of small part.The method comprises the following steps: to show the first frame picture according to the counterpart of raw display data; And be right after after the first frame picture shows and show the second frame picture; Whether wherein, drive the used video data of the second frame picture is to be pressed according to LCD to change.
In an embodiment of the present invention, these pixels during the aforesaid demonstration second frame picture the absolute value of the voltage between each self-corresponding two pixel electrode be lower than these pixels when showing the first frame picture the absolute value of the voltage between each self-corresponding two pixel electrode.
In an embodiment of the present invention, when the aforesaid first frame picture was white picture, the second frame picture was black picture; Perhaps conversely, the first frame picture is that the second frame picture is white picture when deceiving picture.
A kind of method that alleviates LCD towing ghost phenomena that another embodiment of the present invention proposes, be applicable in the LCD that comprises a plurality of pixels, comprise separately that to these pixels of small part two pixel electrodes are to drive a plurality of liquid crystal molecules between two pixel electrodes.The method comprises the following steps: to detect what person of pixel for these pixels that be pressed who is arranged in the position that is pressed; And on the signal wire of the contiguous pixel that is pressed, afford redress signal so that in the pixel that is pressed these liquid crystal molecules of adjacent signal line be rotated toward natural angle; Wherein, natural angle is the anglec of rotation that liquid crystal molecule finally presents when not having potential difference (PD) between two pixel electrodes of correspondence.
In an embodiment of the present invention, aforesaid signal wire is the be pressed detecting read line of pixel of useless redundant line or detecting.
A kind of method that alleviates LCD towing ghost phenomena that another embodiment of the present invention proposes is applicable in the LCD that comprises a plurality of pixels.The method comprises the following steps: whether detecting carries out pressing operation to LCD; And when pressing operation produces, between the two frame pictures that LCD is scheduled to present continuously according to the raw display data that is received, insert according to inserting the adjustment picture that video data gets; Wherein, the insertion video data is different with raw display data.
In an embodiment of the present invention, aforesaid method also comprises: affirmation is pressed and operates the pixel that is influenced; And insert video data in order to the partial data that drives affected pixel with acquisition in the change raw display data.
In an embodiment of the present invention, when the aforesaid two frame pictures of being scheduled to present continuously according to the raw display data that is received are white picture, make and adjust picture for deceiving picture; Perhaps, the two frame pictures of being scheduled to present continuously according to the raw display data that is received are when deceiving picture, and making and adjusting picture is white picture.
A kind of LCD that another embodiment of the present invention proposes, it comprises: first substrate, a plurality of show electrode, second substrate, at least one sensing pillar and conductive layer.These show electrodes are formed on first substrate, in order to receive video data.The sensing pillar is tab-like to be formed on the first surface of second substrate.Conductive layer covers at least a portion and the sensing pillar of first surface.Wherein, when combination second substrate and first substrate, the sensing pillar is relative with the show electrode that is positioned at the opposite position place, and for non-electrically conducting, and make that when push second substrate being positioned at the conductive layer that covered near the sensing pillar of pressing position contacts with corresponding show electrode between conductive layer that is covered on the sensing pillar and show electrode.Further, conductive layer is the common electrode of LCD.
Each embodiment of the present invention uses software or hardware mode, change is in order to the video data of the pixel that is pressed at the driving place of being depressed, make the pixel that is pressed become another kind of show state being in the compressing time internal conversion, or around the pixel that is pressed, provide an extra driving force.Thus, liquid crystal molecule obtains extra rotational kinetic energy and can quicken to return back to arrangement (Alignment) situation before not pushing; Therefore can effectively overcome the defective that exists in the known technology, alleviate LCD towing ghost phenomena.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 illustrates the part section structural representation of a kind of LCD of first embodiment of the invention.
The LCD that Fig. 2 illustrates first embodiment of the invention receives raw display data from system end.
The LCD that Fig. 3 illustrates first embodiment of the invention receives according to being pressed locations of pixels and fixed new video data from system end.
Part section structural representation when Fig. 4 illustrates LCD shown in Figure 1 and is pressed.
Fig. 5 illustrates the part section structural representation of a kind of LCD of second embodiment of the invention.
Part section structural representation when Fig. 6 illustrates LCD shown in Figure 5 and is pressed.
Fig. 7 illustrates the part section structural representation of the another kind of LCD of second embodiment of the invention.
Fig. 8 illustrates a kind of process flow diagram that alleviates the method for LCD towing ghost phenomena that third embodiment of the invention proposes.
Fig. 9 illustrates the partial schematic diagram of a kind of LCD of fourth embodiment of the invention.
Description of reference numerals
10,30,70: LCD 12,32: thin-film transistor array base-plate
121,321,721: show electrode P1, P2, P3, P: pixel
13,33: liquid crystal layer 131,331: liquid crystal molecule
14,34: the second substrates 141,341: conductive layer
16: Trackpad 20: system end
343: sensing pillar 322: passivation layer
323: silicon nitride layer 324: amorphous silicon layer
325: gate insulator 326: cover metal
G: grid D: drain electrode
S: source electrode 327: sensor pad
100,300: step GL: gate line
DL: data line 723: signal wire
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in following cooperation DETAILED DESCRIPTION OF THE PREFERRED with reference to the accompanying drawings, can clearly present.The direction term of being mentioned in following examples, for example: upper and lower a, left side or right side etc. only are directions with reference to the accompanying drawings.Therefore, the direction term of use is to be used for illustrating not to be to be used for limiting the present invention.
Referring to Fig. 1 to Fig. 4, a kind of method that alleviates LCD towing ghost phenomena that first embodiment of the invention proposes is applicable in the LCD 10 that comprises a plurality of pixel P1, P2, P3.As shown in Figure 1, LCD 10 comprises thin film transistor (TFT) array (TFT Array) substrate 12, liquid crystal layer 13, second substrate 14 and Trackpad 16.Pixel P1, P2, P3 comprise thin film transistor (TFT) (not indicating among Fig. 1) and the show electrode (DisplayElectrode) 121 that is formed on the thin-film transistor array base-plate 12 respectively.Be formed with the common electrode (Common Electrode) of conductive layer 141 on second substrate 14 as LCD 10.At this, show electrode 121 is as the pixel electrode of each pixel P1, P2, P3, and conductive layer 141 is another pixel electrodes as each pixel P1, P2, P3.Liquid crystal layer 13 is folded between the thin-film transistor array base-plate 12 and second substrate 14, and comprises a plurality of liquid crystal molecules 131.Part liquid crystal molecule 131 is positioned between two pixel electrodes of each pixel P1, P2, P3, and is driven to control its anglec of rotation by two pixel electrodes of each pixel P1, P2, P3.The Trackpad 16 outer outsides that are affixed on second substrate 14.Need to prove that Trackpad 16 is not limited to external labeling type Trackpad shown in Figure 1, it also can be the embedded touch plate.
Please in the lump with reference to figure 1 and Fig. 2, LCD is obtained raw display data from system end 20, and raw display data and then two pixel electrodes that are provided to each pixel P1, P2, P3 are able to display frame to drive a plurality of liquid crystal molecules 131 between two pixel electrodes.
Please in the lump with reference to figure 3 and Fig. 4, when object is for example pointed (not indicating among Fig. 3 and Fig. 4) when pushing LCD 10, the position of the touch point that the Trackpad 16 by LCD 10 is detected judges that the pixel that is pressed at the place of being depressed is what person among pixel P1, P2, the P3, and output is pressed the position of pixel P2 to system end 20.System end 20 is according to the position of the pixel P2 that is pressed of received LCD 10 outputs, change originally in order to driving be positioned at the place of being depressed the pixel P2 that is pressed raw display data counterpart and must adjust data, and keep in order to drive the counterpart of the raw display data of pixel P1, the P3 except that the pixel P2 that is pressed among pixel P1, P2, the P3, finally export a new video data to LCD 10.Adjustment data in the follow-up new video data that inputs to LCD 10 will provide two pixel electrodes to the pixel P2 that is pressed, so that being rotated to small part toward natural angle in the liquid crystal molecule 131 corresponding with the pixel P2 that is pressed.Wherein, adjusting time span that data offer two pixel electrodes of the pixel P2 that is pressed can be to push and stops the back and continue the number frame to tens of frame picture cycles; The nature angle is the anglec of rotation that liquid crystal molecule 131 finally presents when not having potential difference (PD) between two pixel electrodes of correspondence.
In first embodiment of the invention, originally be positioned at the absolute value of voltage (corresponding to the potential difference (PD) between two pixel electrodes of the pixel P2 that is pressed) of counterpart of raw display data of the pixel P2 that is pressed at the place of being depressed greater than the absolute value of the voltage of adjustment data in order to driving; Wherein, the voltage of adjustment data is about 0.At this,, for normal white mode LCD, can make the white picture of pixel P2 position display that is pressed in its process that is pressed when showing black picture by providing of data is provided; And for normal black mode LCD, can make the black picture of pixel P2 position display that is pressed in its process that is pressed when showing white picture, thereby can reach the purpose that alleviates the towing ghost phenomena.
Hold above-mentionedly, when Trackpad 16 does not detect any touch point, can be set to continue the output raw display data, make LCD 10 drive pixel P1, P2 and P3 according to raw display data by system end 20.
Referring to Fig. 5 and Fig. 6, a kind of method that alleviates LCD towing ghost phenomena that second embodiment of the invention proposes is applicable in the LCD 30 that comprises a plurality of pixel P (only illustrating one among Fig. 5 and Fig. 6 as an example).As shown in Figure 5, LCD 30 comprises thin-film transistor array base-plate 32, liquid crystal layer 33 and second substrate 34.Single pixel P shown in Fig. 5 comprises thin film transistor (TFT) (not indicating among Fig. 5) and the show electrode 321 that is formed on the thin-film transistor array base-plate 32.Thin film transistor (TFT) comprises grid G, gate insulator 325, amorphous silicon layer 324, silicon nitride layer 323, drain D, source S and passivation layer 322; Show electrode 321 be formed on the passivation layer 322 and with the source S of thin film transistor (TFT) electric property coupling mutually.Also be formed with on the thin-film transistor array base-plate 32 by what gate insulator 325 and passivation layer 322 covered and cover metal 326.Be formed with the sensing pillar (Sensing Photo Spacer) 343 on conductive layer 341 and the tab-like inside surface that is formed in second substrate 34 on second substrate 34.Conductive layer 341 covers at least a portion and the sensing pillar 343 of the inside surface of second substrate 34, and it is as the common electrode of LCD 30.At this, receiving video data, and conductive layer 341 is as another pixel electrode of pixel P as the pixel electrode of pixel P for show electrode 321.Can learn from Fig. 5, when combination second substrate 34 and thin-film transistor array base-plate 32, liquid crystal layer 33 is located between the thin-film transistor array base-plate 32 and second substrate 34, sensing pillar 343 is relative with the show electrode 321 of the pixel P that is positioned at the opposite position place, cover metal 326 and be positioned at sensing pillar 343 belows, and 321 of the conductive layer 341 that is covered on the sensing pillar 343 and show electrodes are non-electrically conducting.Wherein, liquid crystal layer 33 comprises a plurality of liquid crystal molecules 331, and part liquid crystal molecule 331 is positioned between two pixel electrodes of each pixel P and is driven to control its anglec of rotation by two pixel electrodes of each pixel P.
Referring to Fig. 6, when object for example during the outside surface of second substrate 34 of finger presses LCD 30, being positioned at the conductive layer 341 that covered near the sensing pillar 343 the pressing position contacts to form electrical contact with show electrode 321 entities of corresponding pixel P, the feasible current potential that is positioned at two pixel electrodes of the pixel P of pressing position near becomes preset potential simultaneously, for example the common voltage Vcom of LCD 30.
In second embodiment of the invention, become preset potential simultaneously by current potential with two pixel electrodes of the pixel P the pressing position near, can make the natural angle of stating to small part in a plurality of liquid crystal molecules between two pixel electrodes be rotated forward, and then can reach the effect that alleviates the towing ghost phenomena.
Be understandable that, the method that the current potential of two pixel electrodes that make near the pixel P the pressing position of second embodiment of the invention becomes preset potential simultaneously is not limited to the aforesaid conductive layer 341 that makes and contacts with show electrode 321 entities, also can adopt other modes, for example be similar to the LCD 10 among Fig. 1, Trackpad (external labeling type Trackpad or embedded touch plate) is set on LCD 30, utilize the position of the touch point that Trackpad detects to judge that the pixel P that is pressed is what person in a plurality of pixels in the LCD 30, the on-off element conducting of the show electrode 321 by making near the pixel P electric property coupling conductive layer 341 and the pressing position again, the current potential that also can reach two pixel electrodes that make near the pixel P the pressing position becomes the purpose of preset potential simultaneously.Further, as shown in Figure 7, by reaching the purpose that the embedded touch plate is set on LCD 30 at formation sensor pad 327 on the thin-film transistor array base-plate 32.Wherein, the position of sensor pad 327 is set to: sensor pad 327 all can contact with the conductive layer 341 formation entities on being covered in sensing pillar 343 with show electrode 321 when sensing pillar 343 is pressed.
Referring to Fig. 8, it illustrates a kind of process flow diagram that alleviates the method for LCD towing ghost phenomena that third embodiment of the invention proposes.The method that alleviates LCD towing ghost phenomena that third embodiment of the invention proposes is applicable to that LCD receives raw display data in the LCD that comprises a plurality of pixels (can with reference to figure 1), and those pixels comprise two pixel electrodes separately.The method that present embodiment proposes comprises step: whether detecting carries out pressing operation (step 100) to LCD; When pressing operation produces, between the two frame pictures that LCD is scheduled to present continuously according to the raw display data that is received, insert according to inserting the adjustment picture that video data obtains, insert video data different with raw display data (step 300).The absolute value of the voltage (that is potential difference (PD)) between each self-corresponding two pixel electrode of a plurality of pixels institute of the LCD when wherein, showing predetermined two frame pictures that present continuously be lower than these pixels when showing the adjustment picture the absolute value of the voltage between each self-corresponding two pixel electrode.Further, when the predetermined two frame pictures that present continuously are white picture, the second frame picture are set are black picture.In like manner, when predetermined two frame pictures that present continuously during for black picture, it is white picture that the second frame picture is set.
Hold above-mentionedly, insert the pixel that video data can be influenced by the operation of confirming to be pressed and change in the raw display data and get in order to the partial data that drives affected pixel.Whether whether in other words, adjust picture inserts according to LCD and is pressed and decides.
Referring to Fig. 9, a kind of method that alleviates LCD towing ghost phenomena that fourth embodiment of the invention proposes is applicable in the LCD 70 that comprises a plurality of pixel P.LCD 70 comprises external labeling type Trackpad or embedded touch plate (not showing among Fig. 9), and these pixels P comprises that separately two pixel electrodes are to drive a plurality of liquid crystal molecules between two pixel electrodes.In two pixel electrodes of each pixel P one are show electrode 721, and another person is the common electrode (can with reference to the conductive layer among the figure 1 141) of LCD 70; These two pixel electrodes are used to drive a plurality of liquid crystal molecules of being positioned between the two to control the anglec of rotation of these liquid crystal molecules.
These pixels P is positioned at the crossover location of gate lines G L and data line DL and is electrically coupled to corresponding gate lines G L and data line DL.Further, LCD 70 is equipped with signal wire 723 in the close position of data line DL, and signal wire 723 can be set to be parallel to each other with data line DL.Those skilled in the art know that all for colour liquid crystal display device, data line DL is positioned at black matrix" (Black Matrix) district (or claiming light tight district) of each pixel P.Similarly, signal wire 723 also can be similar to data line DL and be arranged at the black matrix" district of each pixel P.In the present embodiment, signal wire 723 can be the be pressed detecting read line (Readout Line) of pixel of useless redundant line or detecting.
Hold above-mentioned, the method that alleviates LCD towing ghost phenomena that fourth embodiment of the invention proposes comprises step: the pixel P that is pressed that utilizes the Trackpad detecting of LCD 70 to be arranged in the position that is pressed is what person of these pixels P, and on the signal wire 723 of the contiguous pixel P that is pressed, afford redress signal so that among the pixel P that is pressed these liquid crystal molecules of adjacent signal line 723 be rotated toward aforesaid natural angle.At this, see through the signal that affords redress and allow the pixel P edge that is pressed obtain extra answer power, the liquid crystal molecule of the position of can quickening thus to be pressed returns back to arrangement situation before not pushing to alleviate LCD towing ghost phenomena.
In sum, aforementioned each embodiment of the present invention uses software or hardware mode, change is in order to the video data of the pixel that is pressed at the driving place of being depressed, make the pixel that is pressed become another kind of show state being in the compressing time internal conversion, thereby liquid crystal molecule obtain extra rotational kinetic energy and can quicken to return back to arrangement situation before not pushing thus; Therefore can effectively overcome the defective that exists in the prior art, alleviate LCD towing ghost phenomena.
In addition, those skilled in the art also can do suitable change to the method and the LCD that alleviate LCD towing ghost phenomena that aforementioned each embodiment of the present invention proposes, for example the suitable quantity of the sensing pillar of the dot structure of LCD, LCD and/or be provided with in LCD liquid crystal molecule is rotated useless dummy pixel (Dummy Pixel) or the like.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification 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 change and retouching, so protection scope of the present invention defines and is as the criterion when looking accompanying Claim.
Claims (24)
1. one kind alleviates the method that LCD is pulled ghost phenomena, be applicable in the LCD that comprises a plurality of pixels, this LCD according to the raw display data that is received with display frame, comprise two pixel electrodes separately to drive a plurality of liquid crystal molecules between these two pixel electrodes to these a plurality of pixels of small part, this method comprises the following steps:
Change originally the counterpart of this raw display data that is positioned at the pixel that is pressed at the place of being depressed in order to driving, so that being rotated to the past natural angle of small part in a plurality of liquid crystal molecules of this corresponding with the pixel that is pressed; And
Keep in order to driving in these a plurality of pixels the counterpart except that this pixel that is pressed to this raw display data of small part,
Wherein, this nature angle is the anglec of rotation that liquid crystal molecule finally presents when not having potential difference (PD) between these two pixel electrodes of correspondence.
2. the method for claim 1 also comprises the following steps:
On this LCD, Trackpad is set; And
Utilize the position of the touch point that this Trackpad detects to judge this pixel that is pressed is what person in these a plurality of pixels.
3. method as claimed in claim 2, wherein this Trackpad is an external labeling type.
4. method as claimed in claim 2, wherein this Trackpad is embedded.
5. method as claimed in claim 2 also comprises the following steps:
When this Trackpad does not detect any touch point, make this LCD drive this a plurality of pixels according to this raw display data.
6. method as claimed in claim 2, wherein change originally the counterpart of this raw display data that is positioned at this pixel that is pressed at the place of being depressed in order to driving, so that being rotated to small part toward this nature angle in these a plurality of liquid crystal molecules corresponding with this pixel that is pressed comprises the following steps:
The counterpart of this raw display data of predetermined these two pixel electrodes that are provided to this pixel that is pressed is changed into the adjustment data; And
Two pixel voltages of these adjustment data to this pixel that is pressed are provided,
Wherein, the absolute value of the voltage of the counterpart of this raw display data is adjusted the absolute value of the voltage of data greater than this.
7. method as claimed in claim 6, wherein the voltage of these adjustment data is about 0.
8. a method that alleviates LCD towing ghost phenomena is applicable in the LCD that comprises a plurality of pixels that arbitrary these a plurality of pixels have two pixel electrodes, and this method comprises the following steps:
Make and produce electrically contact between these two pixel electrodes of the pixel that is pressed that is positioned at the place of being depressed so that the current potential of these two pixel electrodes becomes preset potential simultaneously.
9. method as claimed in claim 8 also comprises the following steps:
On this LCD, Trackpad is set; And
Utilize the position of the touch point that this Trackpad detects to judge this pixel that is pressed is what person in these a plurality of pixels.
10. method as claimed in claim 9, wherein this Trackpad is an external labeling type.
11. method as claimed in claim 9, wherein this Trackpad is embedded.
12. method that alleviates LCD towing ghost phenomena, be applicable in the LCD that comprises a plurality of pixels, this LCD receives raw display data, comprises two pixel electrodes separately to these a plurality of pixels of small part, and this method comprises the following steps:
Counterpart according to this raw display data shows the first frame picture; And
Be right after after this first frame picture shows and show the second frame picture,
Whether wherein, drive the used video data of this second frame picture is to be pressed according to this LCD to change.
13. method as claimed in claim 12, these a plurality of pixels when wherein showing this second frame picture the absolute value of the voltage between each self-corresponding these two pixel electrode be lower than these a plurality of pixels when showing this first frame picture the absolute value of the voltage between each self-corresponding these two pixel electrode.
14. method as claimed in claim 12, wherein this first frame picture is white picture, and this second frame picture is black picture.
15. method as claimed in claim 12, wherein this first frame picture is black picture, and this second frame picture is white picture.
16. method that alleviates LCD towing ghost phenomena, be applicable in the LCD that comprises a plurality of pixels, comprise two pixel electrodes separately to drive a plurality of liquid crystal molecules between these two pixel electrodes to these a plurality of pixels of small part, this method comprises the following steps:
Detecting is arranged in what person of pixel for these a plurality of pixels that be pressed of the position that is pressed; And
The signal that affords redress on the signal wire that is close to this pixel that is pressed is close to this signal wire in the pixel so that this is pressed these a plurality of liquid crystal molecules are rotated toward natural angle,
Wherein, this nature angle is the anglec of rotation that liquid crystal molecule finally presents when not having potential difference (PD) between these two pixel electrodes of correspondence.
17. method as claimed in claim 16 also comprises:
Provide useless redundant line as this signal wire.
18. method as claimed in claim 16 also comprises:
The detecting read line that this pixel that is pressed of detecting is provided is as this signal wire.
19. a method that alleviates LCD towing ghost phenomena is applicable to that in the LCD that comprises a plurality of pixels, this method comprises the following steps:
Whether detecting carries out pressing operation to this LCD; And
When this pressing operation produces, between the two frame pictures that this LCD is scheduled to present continuously according to the raw display data that is received, insert the adjustment picture that obtains according to the insertion video data,
Wherein, it is different with this raw display data that this inserts video data.
20. method as claimed in claim 19 also comprises:
Affirmation is pressed and operates the pixel that is influenced; And
Change in this raw display data in order to the partial data that drives this affected pixel to obtain this insertion video data.
21. method as claimed in claim 19 is white picture according to this two frames picture that this raw display data that is received is scheduled to present continuously wherein, this is adjusted picture and is black picture.
22. method as claimed in claim 19 wherein is black picture according to this two frames picture that this raw display data that is received is scheduled to present continuously, this adjustment picture is white picture.
23. a LCD comprises:
First substrate;
A plurality of show electrodes are formed on this first substrate, in order to receive video data;
Second substrate;
At least one sensing pillar is on the tab-like first surface that is formed in this second substrate; And
Conductive layer covers at least a portion and this sensing pillar of this first surface,
Wherein, when this second substrate of combination and this first substrate, this sensing pillar is relative with this show electrode that is positioned at the opposite position place, and between this conductive layer that is covered on this sensing pillar and this show electrode for non-electrically conducting, and when push this second substrate with this first surface opposing second surface the time this conductive layer of being covered near feasible this sensing pillar that is positioned at the pressing position contact with corresponding this show electrode.
24. LCD as claimed in claim 23, wherein this conductive layer is the common electrode of this LCD.
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| CN2009101184726A CN101494041B (en) | 2009-03-13 | 2009-03-13 | Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display |
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| CN2009101184726A CN101494041B (en) | 2009-03-13 | 2009-03-13 | Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375814A (en) * | 2018-11-09 | 2019-02-22 | 惠州市华星光电技术有限公司 | Touch control method and touch control device |
| CN113641051A (en) * | 2021-10-15 | 2021-11-12 | 惠科股份有限公司 | Array substrate and display panel |
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2009
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375814A (en) * | 2018-11-09 | 2019-02-22 | 惠州市华星光电技术有限公司 | Touch control method and touch control device |
| CN109375814B (en) * | 2018-11-09 | 2022-03-08 | 惠州市华星光电技术有限公司 | Touch method and touch device |
| CN113641051A (en) * | 2021-10-15 | 2021-11-12 | 惠科股份有限公司 | Array substrate and display panel |
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| CN101494041B (en) | 2012-07-18 |
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