CN101494041B - 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
- Publication number
- CN101494041B CN101494041B CN2009101184726A CN200910118472A CN101494041B CN 101494041 B CN101494041 B CN 101494041B CN 2009101184726 A CN2009101184726 A CN 2009101184726A CN 200910118472 A CN200910118472 A CN 200910118472A CN 101494041 B CN101494041 B CN 101494041B
- Authority
- CN
- China
- Prior art keywords
- pixel
- pressed
- lcd
- pixels
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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 advantages of wide application 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 after waiting liquid crystal arrangement to reply after a while, just can disappear.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).Likewise, 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 the object of the invention just provides a kind of method that alleviates LCD towing ghost phenomena.
A purpose more 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; With display frame, these pixels of part comprise that separately two pixel electrodes are to drive a plurality of liquid crystal molecules between two pixel electrodes to LCD at least 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 at least partly past natural angle in these liquid crystal molecules corresponding with the pixel that is pressed being rotated; And keep in order to drive in these pixels except that the counterpart of the raw display data of part at least that is pressed the pixel; Wherein, natural angle is the anglec of rotation that liquid crystal molecule finally appears when between two pixel electrodes of correspondence, not having potential difference (PD).
In an embodiment of the present invention, aforesaid method also comprises the following steps: on LCD, to be provided with Trackpad; 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 the part at least in these liquid crystal molecules corresponding with the pixel that is pressed being rotated toward natural angle, 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; And two pixel voltages that adjustment data to the pixel that is pressed is provided; Wherein, the absolute value of the voltage of the counterpart of raw display data is greater than the absolute value of the voltage of adjustment 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 be applicable in the LCD that comprises a plurality of pixels that LCD receives raw display data, and these pixels of part comprises two pixel electrodes separately at least.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 that these pixels of part comprise that separately two pixel electrodes are to drive a plurality of liquid crystal molecules between two pixel electrodes at least.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 appears when between two pixel electrodes of correspondence, not having potential difference (PD).
In an embodiment of the present invention, aforesaid signal wire is useless redundant line or the detecting read line of detecting the pixel that is pressed.
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 appear 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 appear continuously according to the raw display data that is received are white picture, make the adjustment picture be black picture; Perhaps, the two frame pictures of being scheduled to appear continuously according to the raw display data that is received are when deceiving picture, and making the adjustment 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 be non-electrically conducting between conductive layer that is covered on the sensing pillar and show electrode, and make that when pushing second substrate being positioned at the conductive layer that is covered near the sensing pillar of pressing position contacts with corresponding 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, an extra driving force is provided.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 let above-mentioned and other purposes of the present invention, feature and advantage can be more obviously understandable, hereinafter is special lifts preferred embodiment, and conjunction with figs., elaborates as follows.
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 the DETAILED DESCRIPTION OF THE PREFERRED of following cooperation, can clearly appear with reference to accompanying drawing.The direction term of being mentioned in following examples, for example: upper and lower a, left side or right side etc. only are the directions with reference to accompanying drawing.Therefore, the direction term of use is to be used for explaining 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 obtains 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 through 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 be pressed position to the system end 20 of pixel P2 of output.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 among driving pixels P1, P2, the P3 except that the counterpart of the raw display data of the pixel P1 the pixel P2 of being pressed, P3, finally export new video data a 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 the part at least in the liquid crystal molecule 131 corresponding with the pixel P2 that is pressed being rotated toward natural angle.Wherein, the adjustment data time span that offers 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 appears when between two pixel electrodes of correspondence, not having potential difference (PD).
In first embodiment of the invention, 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 that originally is positioned at the place of being depressed in order to driving is greater than the absolute value of the voltage of adjusting data; 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 through adjustment the providing of data; 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 come driving pixels 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 a conduct among Fig. 5 and Fig. 6 for 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 the inside surface that conductive layer 341 and tab-like 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 the conductive layer 341 that is covered on the sensing pillar 343 is non-electrically conducting with 321 of show electrodes.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; Current potential through with two pixel electrodes of the pixel P the pressing position near becomes preset potential simultaneously; Can make the part at least in a plurality of liquid crystal molecules between two pixel electrodes be rotated, and then can reach the effect that alleviates the towing ghost phenomena toward aforesaid natural angle.
It is 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 through 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 of pressing position becomes the purpose of preset potential simultaneously.Further, as shown in Figure 7, through 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 appear 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 appear continuously be lower than these pixels of showing when adjusting picture the absolute value of the voltage between each self-corresponding two pixel electrode.Further, when the predetermined two frame pictures that appear continuously are white picture, the second frame picture are set are black picture.In like manner, when predetermined two frame pictures that appear 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 through 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.In other words, whether whether the adjustment picture insert according to LCD and be pressed and decide.
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.Likewise, 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 useless redundant line or detects the detecting read line (Readout Line) of the pixel that is pressed.
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 let 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 the 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 quantity of the sensing pillar of the dot structure of proper liquid crystal display, LCD and/or in LCD, be provided with 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 that any those skilled in the art are not breaking away from the spirit and scope of the present invention in order to qualification 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 (16)
1. one kind alleviates the method that LCD pulls 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; At least these a plurality of pixels of part comprise two pixel electrodes separately to drive a plurality of liquid crystal molecules between these two pixel electrodes, and 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 at least partly past natural angle in a plurality of liquid crystal molecules of this corresponding with the pixel that is pressed being rotated; And
Keep in order to driving in these a plurality of pixels except that this counterpart of this raw display data of part at least the pixel that is pressed,
Wherein, this nature angle is the anglec of rotation that liquid crystal molecule finally appears when between these two pixel electrodes of correspondence, not having potential difference (PD).
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 the part at least in these a plurality of liquid crystal molecules corresponding with this pixel that is pressed is rotated toward this nature angle, comprise 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 greater than the absolute value of the voltage of these adjustment data.
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 to produce electrically contact between these two pixel electrodes of the pixel that is pressed that is positioned at the place of being depressed, thereby make the part at least in a plurality of liquid crystal molecules between two pixel electrodes be rotated toward natural angle 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; At least these a plurality of pixels of part comprise two pixel electrodes separately to drive a plurality of liquid crystal molecules between these two pixel electrodes, and 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 on the signal wire that is close to this pixel that is pressed, affords redress 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 appears when between these two pixel electrodes of correspondence, not having potential difference (PD).
13. method as claimed in claim 12 also comprises:
Provide useless redundant line as this signal wire.
14. method as claimed in claim 12 also comprises:
The detecting read line that this pixel that is pressed of detecting is provided is as this signal wire.
15. 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 be non-electrically conducting between this conductive layer that is covered on this sensing pillar and this show electrode; And when push this second substrate with this first surface opposing second surface the time make that be positioned at this conductive layer that is covered near this sensing pillar the pressing position contacts with this corresponding show electrode, thereby make at least partly past natural angle in a plurality of liquid crystal molecules between the corresponding show electrode of this conductive layer and this be rotated so that the current potential of this conductive layer show electrode corresponding with this becomes preset potential simultaneously.
16. LCD as claimed in claim 15, wherein this conductive layer is the common electrode of this LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101184726A CN101494041B (en) | 2009-03-13 | 2009-03-13 | Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101184726A CN101494041B (en) | 2009-03-13 | 2009-03-13 | Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101688185A Division CN102682731A (en) | 2009-03-13 | 2009-03-13 | Method for reducing dragging ghost shadow phenomenon of liquid crystal display and liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101494041A CN101494041A (en) | 2009-07-29 |
| CN101494041B true CN101494041B (en) | 2012-07-18 |
Family
ID=40924599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101184726A Active CN101494041B (en) | 2009-03-13 | 2009-03-13 | Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101494041B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113641051B (en) * | 2021-10-15 | 2022-02-08 | 惠科股份有限公司 | Array substrate and display panel |
-
2009
- 2009-03-13 CN CN2009101184726A patent/CN101494041B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101494041A (en) | 2009-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8581878B2 (en) | Method for mitigating pooling mura on liquid crystal display apparatus and liquid crystal display apparatus | |
| CN100432768C (en) | Single-gap transflective liquid crystal display panel and its optical characteristic improving method | |
| TWI438692B (en) | Display device including sensing elements | |
| JP4893759B2 (en) | Liquid crystal display | |
| US7692729B2 (en) | Liquid crystal display including sensing unit | |
| WO2018072249A1 (en) | Display module and liquid crystal display screen | |
| KR101133753B1 (en) | Liquid crystal display including sensing element | |
| US20140022465A1 (en) | Color filter substrate, touch display panel and touch display device | |
| EP2101251A2 (en) | Liquid crystal display, display system including the liquid crystal display and method of recognizing an object using the liquid crystal display | |
| CN101620333B (en) | Active matrix display apparatus with touch sensing function | |
| US20080266497A1 (en) | Liquid crystal display | |
| US20120133612A1 (en) | Switchable touch display device and operating method thereof | |
| CN101852935A (en) | Touch liquid crystal display | |
| US7426003B2 (en) | Pixel structure and liquid crystal display panel having particular transition electrode | |
| US8581863B2 (en) | Liquid crystal display panel and liquid crystal display apparatus | |
| US20090256819A1 (en) | Display panel assembly and display apparatus having the display panel assembly | |
| TW201215979A (en) | Liquid crystal display | |
| CN101571635A (en) | Touch panel display and touch display device | |
| CN101510036B (en) | LCD panel, LCD device and control method thereof | |
| CN112213893A (en) | Display device | |
| CN101494041B (en) | Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display | |
| US20100225605A1 (en) | Liquid crystal display panel, liquid crystal display apparatus and control method thereof | |
| TWI332597B (en) | Optically compensated birefringence liquid crystal display panel | |
| CN102436107B (en) | Liquid crystal display device and control method thereof | |
| CN102682731A (en) | Method for reducing dragging ghost shadow phenomenon of liquid crystal display and liquid crystal display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |