CN1621928A - LCD capable of adjusting display view angle and display process thereof - Google Patents
LCD capable of adjusting display view angle and display process thereof Download PDFInfo
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- CN1621928A CN1621928A CN 200410100057 CN200410100057A CN1621928A CN 1621928 A CN1621928 A CN 1621928A CN 200410100057 CN200410100057 CN 200410100057 CN 200410100057 A CN200410100057 A CN 200410100057A CN 1621928 A CN1621928 A CN 1621928A
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Abstract
The LCD with adjustable display view angle includes display panel and data driver. The display panel includes several pixel units and each of the pixel units includes the first subpixel and the second subpixel. The data driver is for providing the first and the second driving voltage to the first subpixel and the second subpixel of all the pixel units. When the LCD is set in wide view angle operation mode, the first driving voltage and the second driving voltage to the pixel units are the same pixel voltage; and when the LCD is set in narrow view angle operation mode, the first driving voltage to partial pixel units and the second driving voltage to the other pixel units are one grey voltage.
Description
Technical field
The present invention relates to a kind of LCD and display packing thereof of adjusting display view angle, particularly a kind of switched voltage signal that utilizes is to adjust the LCD and the display packing thereof at the required visual angle of user.
Background technology
Progress along with science and technology, the consumer has more opportunity to use the action product with display in the public domain, for example mobile phone, mobile computer etc., if but the consumer is when using in the public domain, want to possess individual's privacy again, at this moment they can need the display that can adjust display view angle.The control method that following three kinds of more common visual angle of liquid crystal display are arranged at present.
Fig. 1 utilizes flap type light absorption plate to adjust the synoptic diagram of visual angle of liquid crystal display in the known technology.With reference to Fig. 1, add flap type light absorption plate 110 in LCD 100 fronts, and arrange with regular fashion.By adjusting the height h and the light absorption plate 110 each intervals distance 1 of light absorption plate 110 itself, can limit the angle that light L that display 100 sends enters observer's eyes.Therefore only in the visual angle is the scope of θ, light L could be by light absorption plate 110, and the observer just can see image; The outer light L that the visual angle surpasses θ then can be absorbed by light absorption plate 110 all.
Yet the shortcoming of this kind method of controlling viewing angle is that light absorption plate 110 must be added on outside the display, causes the inconvenience in the use outward more in use; Because partly light L is absorbed by light absorption plate 110, cause more than the display brightness meeting drop by half; And the adjustment at its visual angle increases simultaneously or reduces about being, can't satisfy various demand that the user is switched the visual angle, for example provides only to face and the user of side-looking observes.
Fig. 2 A and Fig. 2 B utilize light scattering layer to adjust the synoptic diagram of visual angle of liquid crystal display in the known technology.The light scattering layer 210 that between parallel Lb backlight and liquid crystal layer 200, adds an adjustable lay the grain scattering properties, light scattering layer 210 can contain Polymer Dispersed Liquid Crystal (Polymer Dispersed LiquidCrystal, PDLC).Put on the voltage of light scattering layer 210 by adjustment, determine narrow field-of-view mode and wide viewing angle pattern.Shown in Fig. 2 A, under narrow field-of-view mode, light scattering layer 210 is transparence for voltage turn-on state ON, and Lb keeping parallelism backlight is by liquid crystal layer 200.Therefore, the observer who only faces just can observe image.Shown in Fig. 2 B, under the wide viewing angle pattern, light scattering layer 210 is voltage not on-state OFF, and Lb backlight forms scattered light Ls by liquid crystal layer 200 via the effect of light scattering layer, makes the observer at each visual angle all can be observed image.
Yet the shortcoming of this kind method of controlling viewing angle is that when light scattering layer 210 switches to voltage turn-on state ON Lb backlight has partly when passing through light scattering layer 210 and is reflected, and causes the brightness of liquid crystal panel to reduce; And as described in the same example, this kind method of controlling viewing angle can't adjust at the required visual angle of user, thereby has limited to various selection that the visual angle is adjusted.
Fig. 3 A and Fig. 3 B utilize in the known technology to add LCD to reach the viewing angle control synoptic diagram of the adjustable effect in visual angle.Add the direction of orientation of alignment films on the LCD by adjustment, produce wide viewing angle and the two kinds of patterns in narrow visual angle.Under narrow field-of-view mode, the positive apparent time of observer can be seen image 300, as shown in Figure 3A; When the observer looks side ways, then can see the bright dark alternate figure 310 that the image 300 that will show covers, shown in 3B figure, make the observer be difficult for recognisable image, thereby reach the adjustable effect in visual angle.
Yet as described in three above-mentioned examples, the adjustable LCD framework in these visual angles all must add assembly in basic display architectures at present, causes and uses inconvenience and increase cost.In addition, in the shortcoming of carrying out having when switch at the visual angle brightness and contrast decline.
Summary of the invention
In view of this, purpose of the present invention is exactly that a kind of LCD and display packing thereof of adjusting display view angle is being provided.Each pixel comprises two sub-pixels, and (Thin FilmTransistor, TFT) driving, and the liquid crystal of these two sub-pixel correspondences is swung to and differed 180 degree by two thin film transistor (TFT)s respectively.When the wide viewing angle pattern is operated, the liquid crystal drive voltage unanimity of these two sub-pixel correspondences, and when the operation of narrow field-of-view mode is dark attitude with the liquid crystal drive of a sub-pixel correspondence, and the liquid crystal drive of another sub-pixel correspondence is normal the demonstration, can reach the adjustable purpose of display view angle.
According to purpose of the present invention, a kind of LCD of adjusting display view angle is proposed, comprise display panel and data driver.Display panel comprises a plurality of pixel cells, and each pixel cell comprises first sub-pixel and second sub-pixel.Data driver is in order to provide first driving voltage and second driving voltage first sub-pixel and second sub-pixel to each pixel cell respectively.When LCD is set at the operation of wide viewing angle pattern, first driving voltage of each pixel cell and second driving voltage are to be an identical pixel voltage, and when LCD is set at the operation of narrow field-of-view mode, first driving voltage of a part of pixel cell is a grayscale voltage and second driving voltage is a pixel voltage, and all the other partly second driving voltage of pixel cells be grayscale voltage and first driving voltage is a pixel voltage.Therefore, assembly need be do not added, the adjustable purpose in visual angle can be reached.
According to purpose of the present invention, a kind of display packing of adjusting the liquid crystal display displays visual angle is proposed.LCD comprises display panel, and display panel comprises a plurality of pixel cells.Each pixel cell comprises first sub-pixel and second sub-pixel.This method comprises when the wide viewing angle pattern is performed, and utilizes first sub-pixel and second sub-pixel of each pixel cell of pixel voltage drive; And when narrow field-of-view mode is performed, second sub-pixel that utilizes first sub-pixel of grayscale voltage driving part pixel cell and utilize these partial pixel unit of pixel voltage drive, and first sub-pixel that utilizes grayscale voltage to drive second sub-pixel of all the other part pixel cells and utilize all the other part pixel cells of pixel voltage drive.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, be described in detail below:
Description of drawings
Fig. 1 represents to utilize in the known technology flap type light absorption plate to adjust the synoptic diagram of visual angle of liquid crystal display.
Fig. 2 A and Fig. 2 B represent to utilize in the known technology light scattering layer to adjust the synoptic diagram of visual angle of liquid crystal display.
Fig. 3 A and Fig. 3 B represent that utilization adds LCD to reach the viewing angle control synoptic diagram of the adjustable effect in visual angle in the known technology.
Fig. 4 A represents to look calcspar on a kind of LCD according to a preferred embodiment of the present invention.
Fig. 4 B represents a kind of LCD part diagrammatic cross-section according to a preferred embodiment of the present invention.
Fig. 4 C represents according to the liquid crystal molecule synoptic diagram of preferred embodiment sub-pixel of the present invention with pixel voltage and grayscale voltage driving.
Fig. 4 D represents to adjust according to preferred embodiment of the present invention the method flow diagram at liquid crystal display displays visual angle.
The liquid crystal display device structure synoptic diagram of operating in the wide viewing angle pattern among Fig. 4 E presentation graphs 4B.
Fig. 5 is shown under the wide viewing angle pattern sub-pixel A and B and imports consistent pixel voltage or have only sub-pixel A or during B input pixel voltage, the observer observes the driving voltage (V) of display panels 400 and four kinds of graph of relation of display relative brightness (%) by positive or right oblique 30 degree.
Among Fig. 6 A to Fig. 6 D presentation graphs 4B LCD when the operation of narrow field-of-view mode sub-pixel A and B wherein one be made as show state and another result schematic diagrams that are made as dark attitude and observe in positive and right oblique 30 degree.
Fig. 7 represents the desirable gray-scale value of corresponding diagram 5 and the graph of a relation of actual observation gray-scale value.
The reference numeral explanation:
100: display
110,420,520: the light absorption plate
200: liquid crystal panel
210: light scattering layer
300: the front elevation picture
310: bright dark alternate figure
400: LCD
410: display panel
411: substrate
412: pixel cell
415,417: thin film transistor (TFT)
420: backlight assembly
430: gate drivers
440: data driver
Embodiment
Simultaneously with reference to Fig. 4 A, Fig. 4 B and Fig. 4 C, Fig. 4 A expression is according to looking calcspar on a preferred embodiment of the present invention LCD, and Fig. 4 B represents that a kind of LCD part diagrammatic cross-section and Fig. 4 C according to a preferred embodiment of the present invention are the liquid crystal molecule synoptic diagram that expression drives with pixel voltage and grayscale voltage according to preferred embodiment sub-pixel of the present invention.LCD 400 comprises display panel 410, backlight assembly 420, gate drivers 430 and data driver 440.Display panel 410 comprises substrate 411 and is formed at a plurality of pixels (Pixel) unit 412 on the substrate 411, and each pixel cell 412 comprises the first sub-pixel A and the second sub-pixel B again, connects different thin film transistor (TFT)s 415 and 417.For example resolution is 1024 * 768 LCD, just has (1024 * 3 * 2) * 768 thin film transistor (TFT).Thin film transistor (TFT) 415 and 417 is accepted the startup of gate drivers 430 output voltage V g and the driving voltage Va and the Vb of data driver 440 output is inputed to sub-pixel A and B.Driving voltage Va or Vb can be show state and dark attitude in order to promoter pixel A or B according to being set at normal pixel voltage (for example being 5V) and gray scale (Grey) voltage (for example being 0V).In addition, backlight assembly 420 is in order to provide Lb backlight to display panel 410.
With vertical orientated (Vertical Alignment, VA) the type LCD is an example, for each pixel cell 412, when being grayscale voltage (0V) by the driving voltage Va of thin film transistor (TFT) 415 and 417 input sub-pixel A and B and Vb, that is be set at dark attitude (Dark Mode), the liquid crystal molecule of sub-pixel A and B is to be the state of standing erectly, shown in the left figure of Fig. 4 C.And when being normal pixel voltage (5V) by the driving voltage Va of thin film transistor (TFT) 415 and 417 input sub-pixel A and B and Vb, that is be set at show state, the liquid crystal molecule of sub-pixel A and B tilts towards horizontal direction because of electric field action, and sub-pixel A tilts towards different both sides with the liquid crystal molecule of B, shown in the right figure of Fig. 4 C.
With reference to Fig. 4 D, the display packing process flow diagram at liquid crystal display displays visual angle is adjusted in its expression according to preferred embodiment of the present invention.At first,, carry out the operation of wide viewing angle pattern, comprise that the first sub-pixel A and the second sub-pixel B that utilize each pixel cell 412 of identical pixel voltage drive are show state simultaneously in step 430.Then, in step 440, carry out narrow field-of-view mode operation, comprise that utilizing the first sub-pixel A of grayscale voltage driving part pixel cell 412 is dark attitude, and utilize these second sub-pixel B display pixel images of pixel cells 412 partly of above-mentioned pixel voltage drive, and the second sub-pixel B that utilizes grayscale voltage to drive remainder pixel cell 412 is dark attitude, and utilizes the partly first sub-pixel A display pixel image of pixel cells 412 of above-mentioned pixel voltage drive these all the other.
With reference to Fig. 4 E, the LCD cross-sectional view of operating in the wide viewing angle pattern among its presentation graphs 4B.When LCD 400 was set at the operation of wide viewing angle pattern, each pixel cell 412 neutron pixel A and B started with identical pixel voltage, that is are set at show state simultaneously, and therefore, the liquid crystal molecule of sub-pixel A and B tilts towards different both sides.At this moment, for the observer who faces, Lb backlight can see through and be incident to observer's eyes via liquid crystal molecule C1 and the C2 of the first sub-pixel A and the second sub-pixel B simultaneously.Therefore, the observer who faces can know the image of seeing display panel 410.For the observer of both sides, the Lb backlight that observer's eyes on left side and right side receive has the direction of part L1 backlight and L2 and liquid crystal molecule C1 and C2 to be certain included angle respectively.Therefore, Lb backlight still can be seen through and be incident to the observer on left side or right side by liquid crystal molecule C1 or C2, and the effect that does not therefore have gray inversion occurs, and makes the observer of both sides can know equally and sees image.
Certainly, above-mentioned wide viewing angle pattern operation mechanism is not limited to the arrangement mode of sub-pixel A and B.Group pixel A and B exchange when arranging, and are show state because the sub-pixel A of each pixel cell 412 and B drive, and Lb backlight still can see through observer's eyes that each sub-pixel A and B arrive different visual angles, reach wide viewing angle operation purpose.
Shown in curve C among Fig. 51 and C2, be to be shown in the operation of wide viewing angle pattern respectively down, sub-pixel A and B start with identical pixel voltage, and the observer faces and right oblique 30 degree (0,30) are observed the relation curve of pixel drive voltage (V) with the display brightness (%) of display panel 410.Though display brightness, contrast calibration apparent time that right oblique 30 observers that spend see are low slightly, do not have the phenomenon of gray inversion.
With reference to Fig. 6 A to Fig. 6 D, among its presentation graphs 4B LCD when the operation of narrow field-of-view mode, sub-pixel A and B wherein one be made as show state and another is made as dark attitude, the result schematic diagrams of observing in positive and right oblique 30 degree.When LCD 400 was set at the operation of narrow field-of-view mode, it was dark attitude (liquid crystal molecule is stood erectly) that sub-pixel A and B must have a driving, and another is to desire the required pixel voltage drive of display image.No matter be that sub-pixel A or B are dark attitude, face the observer and can not discover difference, because all be consistent shown in Fig. 6 A and Fig. 6 B to the phase delay of facing the observer.But when our chooser pixel A was show state for dark attitude sub-pixel B, shown in Fig. 6 C, Lb backlight that stravismus observer's eyes of right oblique 30 degree receive and the liquid crystal molecule of sub-pixel B were certain included angle, thereby still can see the image of display panel 410.Shown in the curve C 3 of Fig. 5, when driving voltage was 3V, relative brightness T about 43%.Yet, when our chooser pixel A is a show state, and sub-pixel B is when being dark attitude, shown in Fig. 6 D, the Lb backlight that stravismus observer's eyes of right oblique 30 degree receive is approximate parallel with the liquid crystal molecule of sub-pixel A, thereby has the phenomenon of gray inversion, make the right side observer will see gloomy unclear image, as the curve C 4 of Fig. 5, when driving voltage was 3V, relative brightness T only 9%.
As mentioned above, to same observer, for example be the observer of right oblique 30 degree, identical sub-pixel driving voltage, 5V for example, but because the mode that sub-pixel A and B are set at show state (5V) and dark attitude (0V) can form two kinds of above-mentioned situations, thereby produce different brightness, be the penetrance of different Lb backlight, but be consistent, thereby the adjustable mechanism in visual angle can be provided for facing the brightness that the observer sees.
It should be noted that above-mentioned narrow field-of-view mode operation mechanism is not limited to the arrangement mode of sub-pixel A shown in the 6th figure and B.When group pixel A and B exchange and arrange, face the sub-pixel liquid crystal molecule that remains that the observer sees and stand erectly (dark attitude), and another sub-pixel liquid crystal molecule is heeling condition (show state).Right oblique 30 degree observers remain and see that a sub-pixel liquid crystal molecule stands erectly (dark attitude), and the Lb backlight that receives is in a certain angle with the liquid crystal molecule of another sub-pixel or approximate parallel.Obviously do not influence the brightness of above-mentioned observer of facing and right oblique 30 degree display frames that the observer sees.
With reference to Fig. 7, the desirable gray-scale value of its expression corresponding diagram 5 and the graph of a relation of actual observation gray-scale value.As shown in Figure 7, X-axis is the desirable gray-scale value that driving voltage switched, and the actual grey value that Y-axis is a human eye to be experienced.When curve C 5 all drives to show state for sub-pixel A and B, consistent with desirable gray-scale value by the gray-scale value of facing observer's impression.And for the observer who is positioned at right oblique 30 degree, shown in curve C 6, the grey scale change of its impression and desirable gray-scale value are more or less the same.Yet, shown in curve C 7 and C8, for example desire driving now is 121 grades, and a driven element pixel B is that show state and the observers that are positioned at right oblique 30 degree can see 150 grades, and only the driven element pixel A is that show state and the observer who is positioned at right oblique 30 degree can see 54 grades.So as long as incite somebody to action 412 driven element pixel A of pixel cell of part on whole image is show state (or dark attitude), 412 driven element pixel B of remaining pixel cell are show state (or dark attitude), then the observer in the both sides will see different image, and this is to facing the observer less than influence.
In addition, when switching to the operation of narrow field-of-view mode, because having the area (being the sub-pixel of half) of half all to drive, display panel 410 is dark attitude, so display brightness can descend, therefore can strengthen the electric current of backlight assembly 420 when narrow field-of-view mode is operated, the brightness when operating with the wide viewing angle pattern whereby is consistent.Thus, the user can not observe the difference of display brightness.
As mentioned above, though the present invention is that example explains with the vertically-oriented type LCD, right LCD of the present invention can also be applicable to twisted nematic (Twisted Nematic, TN) escope.As long as each pixel cell is divided into two independently sub-pixels, driving two sub-pixels simultaneously when the wide viewing angle pattern is operated is show state, and when narrow field-of-view mode is operated, partly one of them sub-pixel of pixel cell drives and is dark attitude, can produce all that top view person can see image and the both sides observer is difficult to the effect of recognisable image, reach the adjustable purpose in visual angle whereby, therefore, neither disengaging technical scope of the present invention.
The LCD that the above embodiment of the present invention is disclosed, its advantage is pixel cell to be divided into sub-pixel A, B and to be driven by different thin film transistor (TFT)s, can be show state by two sub-pixels that drive each pixel cell simultaneously, or the sub-pixel A of driving part pixel cell or B are dark attitude, so that required wide viewing angle and narrow field-of-view mode to be provided, especially in the operation of narrow field-of-view mode, can adjust a driven element pixel A at random or B is the pixel cell number and the position of dark attitude, make the observer at some visual angle be difficult to identification.Therefore, need when using, not add assembly, can reach the adjustable purpose in real visual angle.
In sum; though the present invention discloses as above with a preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; certainly can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claims scope is defined.
Claims (5)
1. the LCD that can adjust display view angle comprises:
One display panel, this display panel comprises a plurality of pixel cells, described each pixel cell comprises one first sub-pixel and one second sub-pixel; And
One data driver, this data driver in order to provide respectively one first driving voltage to this first sub-pixel and one second driving voltage to this second sub-pixel;
Wherein, when this LCD is set at the operation of wide viewing angle pattern, respectively this first driving voltage of this pixel cell correspondence and this second driving voltage all are an identical pixel voltage, and when this LCD is set at narrow visual angle operator scheme, these first driving voltages of these pixel cell correspondences of a part be a grayscale voltage and these second driving voltages for this pixel voltage and these second driving voltages of these pixel cell correspondences of remainder be for these first driving voltages of a grayscale voltage be this pixel voltage.
2. LCD as claimed in claim 1 is characterized in that: this first sub-pixel comprises that a first film transistor and this second sub-pixel comprise one second thin film transistor (TFT).
3. LCD as claimed in claim 1 is characterized in that: also comprise a backlight assembly, wherein one of this backlight assembly narrow field-of-view mode operating current is a wide viewing angle pattern operating current that is higher than this backlight assembly.
4. LCD as claimed in claim 1 is characterized in that: this grayscale voltage is 0V.
5. display packing of adjusting the liquid crystal display displays visual angle, wherein this LCD comprises a display panel, and this display panel comprises a plurality of pixel cells, and described each pixel cell comprises one first sub-pixel and one second sub-pixel, and this method comprises:
Carry out the wide viewing angle pattern, comprise this first sub-pixel and this second sub-pixel that utilize described each pixel cell of a pixel voltage drive; And
Carry out narrow field-of-view mode, comprising:
These second sub-pixels that utilize these first sub-pixels of a grayscale voltage driving part pixel cell and utilize these partial pixel unit of this pixel voltage drive; And
Utilize this grayscale voltage to drive these second sub-pixels of remainder and these first sub-pixels that utilize this this remainder of pixel voltage drive.
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| CNB2004101000575A CN100346220C (en) | 2004-12-07 | 2004-12-07 | LCD capable of adjusting display view angle and display process thereof |
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| CNB2004101000575A CN100346220C (en) | 2004-12-07 | 2004-12-07 | LCD capable of adjusting display view angle and display process thereof |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777700A (en) * | 1993-07-14 | 1998-07-07 | Nec Corporation | Liquid crystal display with improved viewing angle dependence |
| JPH09113933A (en) * | 1995-10-19 | 1997-05-02 | Matsushita Electric Ind Co Ltd | Thin-film transistor liquid crystal display element |
| JPH10319373A (en) * | 1997-03-18 | 1998-12-04 | Advanced Display:Kk | Liquid crystal display device and liquid crystal display system |
-
2004
- 2004-12-07 CN CNB2004101000575A patent/CN100346220C/en active Active
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| WO2018171112A1 (en) * | 2017-03-24 | 2018-09-27 | 北京小米移动软件有限公司 | Viewing angle switching method and device |
| JP2019514031A (en) * | 2017-03-24 | 2019-05-30 | 北京小米移動軟件有限公司Ｂｅｉｊｉｎｇ Ｘｉａｏｍｉ Ｍｏｂｉｌｅ Ｓｏｆｔｗａｒｅ Ｃｏ．，Ｌｔｄ． | Viewing angle switching method, apparatus, program, and recording medium |
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| CN108897151B (en) * | 2018-07-17 | 2021-06-22 | 昆山龙腾光电股份有限公司 | Liquid crystal display device with switchable viewing angle |
| CN112785986A (en) * | 2019-11-04 | 2021-05-11 | 联咏科技股份有限公司 | Display system and driving circuit thereof |
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