CN105938278A - Liquid crystal display having color motion blur compensation structure - Google Patents

Abstract

The application relates to a liquid crystal display having a color motion blur compensation structure. A liquid crystal material layer can be plugged between display layers. The display layers can comprise a thin film transistor circuit system of a sub-pixel electrode used for applying an electric field to a sub-pixel part of a liquid crystal material layer. Sub-pixels of different colors can be different in shape and different in liquid crystal thickness. Difference between the sub-pixels can be configured to reducing switching speed of sub-pixels of some colors relative to other sub-pixels, and color motion blur can be reduced when an object moves across black or colorful backgrounds. The sub-pixels can be shaped like V, and the sub-pixels of a first color have a V shape which is less crooked than that of sub-pixels of second and third colors. In a structure with a varying liquid crystal layer thickness, the sub-pixels of the first color can have a liquid crystal layer thicker than the sub-pixels of the second and third colors.

Description

There is the liquid crystal display of color motion fuzzy compensation structure

This application claims in the U.S. Patent application No. that on November 20th, 2015 submits to The U.S. Patent application No.14/850,015 that 14/947,356, submits to for 10th in JIUYUE in 2015, With the temporary patent application No.62/128 submitted on March 4th, 2015, the priority of 453, The full content of these patent applications is incorporated herein by reference.

Technical field

Present disclose relates generally to electronic equipment, and more particularly, to having display Electronic equipment.

Background technology

Electronic equipment generally includes display.Such as, cell phone and portable computer are usual Including the display for presenting information to user.

Liquid crystal display comprises a liquid crystal material layer.It is brilliant that pixel in liquid crystal display comprises thin film Body pipe and for liquid crystal material apply electric field electrode.The strength control liquid crystal of electric field in pixel The polarization state of material also thus regulates the brightness of pixel.

Speed used by liquid crystal pixel switching can be as executing the change of alive function.Therefore, Black picture element is switched to the time quantum needed for grey level will be whiter than black picture element is switched to Time quantum needed for color rank is long.In some cases, it can be possible to be expected to that there is colored background Mobile black object on screen.In such scene, the sub-pixel of different colours may There is different target pixel values, and therefore may switch at different rates.This can cause When black object is moved, produce color motion blurring effect beastly.

It is therefore desirable to be able to provide the display improved for electronic equipment, such as there is minimizing The display that color motion is fuzzy.

Summary of the invention

Display can have upper and lower display layer.Can upper and lower display layer it Between insert a liquid crystal material layer.Display can include upper and lower polariser and for for Display layer provides the backlight of illumination.The array that can use color filter element provides aobvious for display Show the ability of coloured image.Color filter element can include redness, green and blue element or not Color filter element with color.Display can have the array of pixel, and the most each pixel has There is sub-pixel, such as utilize redness, green and the redness of blue color filter elements formation, green And blue subpixels.

Display layer can include thin-film transistor circuit layer, and this thin-film transistor circuit layer has use In the pixel electrode applying electric field for each sub-pixel to liquid crystal material layer.The son of different colours Pixel can have different electrode shape (such as, with the finger piece of different angles orientation) and / maybe can have different thickness of liquid crystal layer.The difference of these sub-pixels can be configured to subtract The sub-pixel of certain color slow is relative to the switch speed of other sub-pixel, to reduce when a kind of face The object of color color motion when the background of another kind of color moves obscures.

Accompanying drawing explanation

Fig. 1 is the illustrative electricity of the laptop computer such as with display according to embodiment The perspective view of subset.

Fig. 2 is the illustrative electricity of the hand-hold electronic equipments such as with display according to embodiment The perspective view of subset.

Fig. 3 is the illustrative electronics of the tablet PC such as with display according to embodiment The perspective view of equipment.

Fig. 4 is the explanation of the computer display such as with display device structure according to embodiment The perspective view of property electronic equipment.

Fig. 5 is the cross-sectional side view of the illustrative display according to embodiment.

Fig. 6 is the top view in the part according to the pel array in the display of embodiment.

Fig. 7 be illustrate object face toward the motion of background destroy the most potentially along object leading edge and The color of the pixel of trailing edge and thereby result in the diagram of color motion blurring effect.

Fig. 8 is to illustrate redness in the display, green and blue subpixels such as according to embodiment What can have not in those color transition periods that such as movement with the object of Fig. 7 is associated Same target pixel value and the curve chart switched with friction speed the most potentially.

Fig. 9 according to embodiment, have illustrative voxel model with reduce color motion obscure The top view of a part for the display of effect.

Figure 10 according to embodiment, be that different types of sub-pixel draws explanation Property normalization perspective rate and applying the curve chart of curve of pixel voltage.

Figure 11 refers to have band center and the V word of end bending according to embodiment, wherein electrode The top view of one group profile pixel electrode of shape.

Figure 12 is to illustrate according to how embodiment, electrode in sub-pixel can have band The different tops towards angle with a group profile temper pixel of the different colours of the finger piece of end bending View.

Figure 13 is to illustrate according to how embodiment, finger piece in the electrodes can have not With towards angle and and how can be in the continuous row of pel array in the display Positive and negative is towards the top view of a group profile temper pixel of different colours alternately between angle.

Figure 14 according to embodiment, wherein thickness of liquid crystal layer for the sub-pixel of different colours It it is the cross-sectional side view of the different illustrative display to reduce color motion blurring effect.

Detailed description of the invention

Electronic equipment can include display.Display can be used to display to the user that image. Can have the illustrative electronic device of display shown in Fig. 1,2,3 and 4.

Fig. 1 shows how electronic equipment 10 can have outside band upper case 12A and bottom The shape of the laptop computer of shell 12B, wherein lower case has such as keyboard 16 and touches The assembly of template 18.Equipment 10 can have permission upper case 12A with direction 22 around rotation The hinge arrangement 20 that rotating shaft 24 rotates relative to lower case 12B.Display 14 can be pacified It is contained in upper case 12A.Sometimes can be referred to as outside the top of display housing or lid Shell 12A can be by rotating upper case 12A towards lower case 12B around rotary shaft 24 It is placed to make position.

Fig. 2 show electronic equipment 10 how can be such as cell phone, music player, The portable equipment of game station, navigation elements or other compact device.At equipment 10 In such structure, shell 12 can have relative front surface and rear surface.Display Device 14 may be mounted on the front of shell 12.If so desired, display 14 can have Opening for the such as assembly of button 26.Opening can also be formed in display 14, with Accommodate speaker port (see, e.g., the speaker port 28 of Fig. 2).

Fig. 3 shows how electronic equipment 10 can be tablet PC.Electronics at Fig. 3 In equipment 10, shell 12 can have relative smooth front surface and rear surface.Display On 14 front surfaces that may be mounted at shell 12.Go out as shown in FIG. 3, display 14 Can have opening, to accommodate button 26 (as an example).

Fig. 4 shows how electronic equipment 10 can be the display of such as computer display, Or how can be the computer being integrated in computer display.Utilize this type Layout, the shell 12 for equipment 10 may be mounted at the supporting construction of such as support 27 Upper or support 27 can be omitted (such as, mounted to a wall for equipment 10).Display On 14 fronts that may be mounted at shell 12.

The illustrative configuration for equipment 10 shown in Fig. 1,2,3 and 4 is only to say Bright property.Usually, electronic equipment 10 can be laptop computer, comprise embedded meter The computer monitor of calculation machine, tablet PC, cell phone, media player or other Hand-held or the relatively skinny device of portable electric appts, such as watch equipment, suspension member equipment, head Wear earphone or earbud device or other wearable or micromodule equipment, do not comprise embedded computer Computer display, game station, navigator, wherein there is the electronics of display Equip the embedded system of the system being installed in retail kiosk or automobile, realize in these equipment The equipment of function of two or more equipment or other electronics.

Shell 12 sometimes referred to as the equipment 10 of housing can be by such as plastics, glass, pottery Porcelain, carbon fibre composite and other composite based on fiber, (such as, machine adds metal Work aluminum, rustless steel or other metal), the combination of other material or these materials formed. What equipment 10 can utilize its housing 12 is largely or entirely by single structure element (example As, machined metal part or molded plastic parts) one-piece construction that constitutes formed, or can (such as, to be installed to inner frame member or other inner shell knot by multiple shell mechanisms The outer enclosure structure of structure) formed.

Display 14 can be to include the touch-sensitive display of touch sensor or can be Insensitive to touching.Touch sensor for display 14 can be passed by capacitance touch The array of sensor electrode, resistive touch array, based on acoustic touch, optical touch or based on The touch sensor arrangement of the touching technique of power or other suitable touch sensor assemblies are formed.

Display 14 for equipment 10 can include by liquid crystal display (LCD) assembly The pixel formed.Display cover layer can cover display 14 or such as color-filter layer etc The surface of display layer, or the other parts of display are used as in display 14 Outmost (or close to outmost) layer.Outmost display layer can by transparency glass plate, Clarity plastic layer or other transparent component are formed.

For equipment 10 display 14 illustrative configuration cross-sectional side view (such as, Equipment or the display of other suitable electronic equipment for Fig. 1, Fig. 2, Fig. 3, Fig. 4 Device 14) figure 5 illustrates.Going out as shown in FIG. 5, display 14 can include the back of the body Photo structure, such as producing the back light unit 42 of backlight 44.During operation, backlight 44 Travel out (Fig. 5 towards in dimension Z vertically upward) and through display layer Display pixel structure in 46.This illuminates and is supplied any of user's viewing by what display pixel produced Image.Such as, backlight 44 can illuminate in direction 50 on display layer 46 by spectators 48 The image of viewing.

Display layer 46 may be mounted at such as plastic chassis structure and/or the end of metal chassis structure In dish structure, to form the display module for installing in shell 12, or display layer 46 Can be directly installed in shell 12 (such as, by display layer 46 is stacked to shell 12 In female in).Display layer 46 can form liquid crystal display or can be used for Form other type of display.

Display layer 46 can include liquid crystal layer, such as liquid crystal layer 52.Liquid crystal layer 52 can press from both sides Such as between display layer 58 and the display layer of 56.Layer 56 and 58 can be inserted in bottom polarization Between layer 60 and top polarizer layer 54.

Layer 58 and 56 can be formed by the transparent substrate layer of the most transparent glass or plastic layer. Layer 58 and 56 can be the layer of such as tft layer and/or color-filter layer.Conductive trace, Color filter element, transistor and other circuit and structure can be on the substrates of layer 58 and 56 Formed (such as, to form tft layer and/or color-filter layer).Touch sensor electricity Pole can also be attached in the layer of such as layer 58 and 56 and/or touch sensor electrode can be Formed on other substrate.

Utilizing a kind of illustrative configuration, layer 58 can be to include pixel based on thin film transistor (TFT) The array of circuit and the tft layer of associated electrodes (pixel electrode), be wherein associated Electrode is for applying electric field to liquid crystal layer 52 and showing image the most on display 14.Layer 56 can be to include the color filter element for providing display coloured image ability for display 14 The color-filter layer of array.If desired, layer 58 can be color-filter layer and layer 56 It can be tft layer.Wherein color filter element and thin-film transistor structure can also be used The structure combined on public substrate layer in the upper and lower part of display 14.

During the operation of display 14 in apparatus 10, it is possible to use control circuit system (such as, the one or more integrated circuits on printed circuit) producing will be at display 14 The information (such as, video data) of upper display.Information to be shown can utilize signal path, Such as by the conductive metal trace shape in the rigidity of such as printed circuit 64 or flexible printed circuit The signal path (as an example) become, is transported to the display of such as circuit 62A or 62B Drive integrated circult.

Backing structure 42 can include the optical plate of such as optical plate 78.Optical plate 78 is permissible Formed by the transparent material of such as clear glass or plastics.During the operation of backing structure 42, Such as the light source of light source 72 can produce light 74.Light source 72 it may be that such as, luminous two The array of pole pipe.

Light 74 from light source 72 be alternatively coupled to optical plate 78 edge surface 76 and by In the principle of total internal reflection, it can be distributed in dimension X of whole optical plate 78 and Y. Optical plate 78 can include scattering characteristics, such as hole (pits) or protruding (bumps). Scattering characteristics may be located on upper surface and/or the relative lower surface of optical plate 78.Light source 72 left sides that may be located at optical plate 78, go out as shown in FIG. 5, or may be located at Right hand edge and/or other edge of plate 78 along plate 78.

The back of the body of display 14 is can serve as from the light 74 that optical plate 78 upwards scatters at direction Z Light 44.The light 74 of scattering can be reflected in upwardly direction by reflector 80 downwards. Reflector 80 can be formed by reflecting material, is such as coated with moulding of dielectric minute surface film coating The bed of material.

In order to strengthen the backlight performance of backing structure 42, backing structure 42 can include blooming 70.Blooming 70 can include being adapted to assist in the backlight 44 and thus reduce focus of homogenizing Diffusing layer, compensate film and the brightness for collimated back 44 for strengthen off-axis viewing Reinforcing membrane (is also sometimes referred to as turning film).Blooming 70 can with in back light unit 42 Other Structural superposition, such as optical plate 78 and reflector 80.Such as, if optical plate 78 Have rectangular foot-print in the X-Y plane of Fig. 5, then blooming 70 and reflector 80 can To have the rectangular foot-print matched.If desired, the film such as compensating film can be by It is attached in other layer (such as, polarization layer) of display 14.

Going out as shown in FIG. 6, display 14 can include the array of pixel 90, such as Pel array 92.Pel array 92 can utilize the control produced by display driver circuit system Signal controls.Display driver circuit system can utilize one or more integrated circuit (IC) And/or thin film transistor (TFT) or other Circuits System realize.

During the operation of equipment 10, the control circuit system in equipment 10, such as memorizer Circuit, microprocessor and other storage and process Circuits System, can be to display driver circuit Systems with data.Display driver circuit system can convert the data into signal, is used for controlling The pixel 90 of pel array 92.

Pel array 92 can comprise the row and column of pixel 90.The circuit system of pel array 92 System (that is, for the row and column of image element circuit of pixel 90) can utilize such as data wire D On data line signal and the signal of gate line signal in gate lines G control.Data wire D and gate lines G are orthogonal.Such as, data wire D can extend vertically and gate line G can horizontal-extending (that is, being perpendicular to data wire D).

(such as, pixel 90 in pel array 92 can comprise thin-film transistor circuit system Polysilicon transistors Circuits System, amorphous silicon transistor Circuits System, such as InGaZnO crystalline substance The semiconducting oxides transistor circuit system of body pipe Circuits System, other silicon or semiconductive oxidation Thing transistor circuit system, etc.) and be associated for the liquid crystal layer in display 14 52 structures producing electric field.Each display pixel can have one or more thin film transistor (TFT). Such as, each display pixel can have respective thin film transistor (TFT), such as thin film transistor (TFT) 94, to control the electric field applying to the respective pixel big fraction 52' of liquid crystal layer 52.

The thin film of such as glassy layer is may be located at for forming the thin-film transistor structure of pixel 90 On transistor base.Thin film transistor base plate and formation on the surface of thin film transistor base plate The structure of display pixel 90 is collectively forming tft layer 58 (Fig. 5).

Gate driver circuit system can be used to produce signal in gate lines G.Grid Drive circuit system can be formed by the thin film transistor (TFT) on tft layer, or can be Individually integrated circuit realizes.The data line signal on data wire D in pel array 92 Carry simulated image data (such as, there is the voltage of the value representing pixel intensity level). During showing image on display 14, display driving integrated circuit or other Circuits System can To receive numerical data from control circuit system and the analog data signal of correspondence can be produced. Analog data signal can be demultiplexed and be supplied to data wire D.

Data line signal on data wire D is distributed to the display pixel 90 in pel array 92 Row.Gate line signal in gate lines G is carried by the gate driver circuit system being associated The row of the pixel 90 in supply pel array 92.

The Circuits System of display 14 can be by conductive structure (such as, metal wire and/or by all The structure formed such as the transparent conductive material of tin indium oxide) formed and display can be included in The transistor of the transistor 94 of the such as Fig. 6 manufactured on the thin film transistor base plate of 14.Thin film Transistor it may be that such as, silicon thin film transistor or semiconducting oxides thin film transistor (TFT).

Go out as shown in FIG. 6, every during such as the pixel of pixel 90 may be located at array 92 Bar gate lines G and the point of intersection of data wire D.Data signal on every data line D is permissible A data line D is supplied to terminal 96 from which.(such as, thin film is many for thin film transistor (TFT) 94 Crystal silicon transistor, amorphous silicon transistor, or such as by the semiconductive oxygen of such as indium gallium zinc The oxide transistor of the transistor that compound is formed) can have the grid received in gate lines G The gate terminal of the such as grid 98 of polar curve control signal.When gate line control signal is effective, Transistor 94 will be as pixel voltage Vp using switched on and at terminal 96 data signal It is passed to node 100.Data for display 14 can show in frame.Make often Gate line signal in row effectively with data signal is delivered to this row pixel after, gate line Signal can be released from effectively.In display frame subsequently, it is possible to use in the grid of every a line Line signal is again effective, to turn on transistor 94 and to capture the value of new Vp.

Pixel 90 can have signal memory element, such as capacitor 102 or other electric charge and deposit Storage element.Storage capacitor 102 can be used to help between frames (that is, at continuous grid In time period between signal is effective) in pixel 90, store signal Vp.

Display 14 can have the public electrode being coupled to node 104.Can use public Electrode (sometimes referred to as common electric voltage electrode, Vcom electrode or Vcom terminal) comes to all Node such as the node 104 in each pixel 90 of array 92 distributes public electrode voltages.As Shown in the illustrative electrode mode 104' of Fig. 6, Vcom electrode 104 can utilize such as oxygen Change the transparent conductive material of indium stannum, indium zinc oxide, other transparent conductive oxide material etc Blanket film and/or be enough to thin realize to transparent metal level that (such as, electrode 104 can be by covering In lid array 92, indium tin oxide layer or other transparency conducting layer of all pixels 90 are formed).

In each pixel 90, capacitor 102 can be coupling between node 100 and 104. Pixel 90 due to the electric field for controlling the liquid crystal material (liquid crystal material 52') through pixel In electrode structure, therefore cross-node 100 and 104 produce shunt capacitance.Such as institute in figure 6 Illustrate, electrode structure 106 (such as, have multiple finger piece display pixel electrode or For applying other display pixel electrode of electric field to liquid crystal material 52') it is alternatively coupled to node 100 (or referring to that display pixel electrode can be formed at node 104) more.During operation, Electrode structure 106 can be used to apply to be subject to across the liquid crystal material 52' of pixel size in pixel 90 The electric field (that is, there is the field of the value proportional to Vp-Vcom) of control.Due to storage electricity The existence of the shunt capacitance that container 102 and the dot structure by pixel 90 are formed, the value of Vp (and the electric field across liquid crystal material 52' being therefore associated) can be with cross-node 106 and 104 It is maintained the persistent period of frame.

The electric field produced across liquid crystal material 52' cause liquid crystal in liquid crystal material 52' towards change Change.This changes the polarization of the light through liquid crystal material 52'.With the polariser 60 of Fig. 5 and 54 combine, and the change of polarization may be used for the array 92 controlling to be transmitted through display 14 In the amount of light 44 of each pixel 90.

In the display of such as color display, color-filter layer 56 is used to come to different pictures Element gives different colors.As an example, each pixel 90 in display 14 can be wrapped Containing the sub-pixel that three (or more than three) is different, each sub-pixel has different respective face Color.Utilize a kind of suitably layout, each picture that sometimes can describe herein as example Element 90 has red sub-pixel, green sub-pixels and blue subpixels.Each sub-pixel utilizes Independently selected pixel voltage Vp drives.It is supplied to the voltage of the electrode of each sub-pixel Amount and respective digital pixel value (such as, from 0 to 255 scope or other is the most digital The value of scope) it is associated.Desired pixel color can be by adjusting three sons in pixel The pixel value of each sub-pixel in pixel produces.Such as, black picture element can be with redness 0 pixel value of sub-pixel, 0 pixel value of green sub-pixels and 0 pixel value of blue subpixels It is associated.As another example, orange pixel can be with red, green and blue subpixels 245,178 and 66 pixel value be associated.White can be by 255,255 and 255 Pixel value represents.

The response time of the pixel in display 14 can be as the liquid being applied to electrode 106 Crystalline substance switches the function of the value of voltage and changes.When having the redness of (0,0,0), green When color, the black picture element of blue pixel value are switched to white pixel (255,255,255), Each sub-pixel (red, green and blue) has identical target pixel value (that is, 255) And start from identical original pixel values (that is, 0), therefore across liquid crystal layer during switching 52 voltages applied are identical for each sub-pixel.Therefore, all sub-pixels will be simultaneously Switching.When moving black text, black cursor or other black entry facing to white background Time, it may appear that such handoff scenario.

Other pixel handoff scenario can be due to when the sub-pixel driving different colours by different pixel values Time occur unequal response time cause color motion obscure.As an example, it is considered to when from The response of pixel when black (0,0,0) is switched to orange (245,178,66).? In this case, big pressure drop across red sub-pixel occur (that is, with the digital value of 245 before The pressure drop of difference correlation connection afterwards) and relatively low pressure drop across green sub-pixels (with 178 Pixel value changes the voltage being associated) and blue subpixels (the pixel value changes of 66) appearance. Because the voltage in red sub-pixel (and therefore it is applied to liquid crystal layer by red electrode 106 Electric field) relatively large, therefore the liquid crystal molecule of red sub-pixel will be than green and blueness sub-picture The liquid crystal molecule of element rotates faster.Therefore, red sub-pixel changes color (from black to red Color) green will be switched to from black respectively than green and blue subpixels and be switched to indigo plant from black Color is faster.The different switch speeds of the sub-pixel of different colours can cause vision beastly Illusion.Black entry is in this example that orange background moves wherein, red sub-pixel Comparatively faster switch speed can potentially cause undesirable red motion blurring effect.

Color motion blurring effect can occur in the leading edge of mobile object again can be at mobile object Trailing edge occurs.For example, it is contemplated that object 112 is across the shifting of the background 110 of the display 14 of Fig. 7 Dynamic.Object 112 can have the first color (such as, black) and background 110 can have There is the second color (such as, orange).Object 112 can be black text (as an example). Background 110 can have when in warm colour ambient light illumination environment (such as, room lighting) to User presents desired color during e-book.Object 112 can move across background 110, such as, Move up and down during rolling, move left and right when translation, etc..In the example of fig. 7, Object 112 is moved to right side on direction 114.

At trailing edge 118, black picture element (0,0,0) be switched to orange (245,178, 66).Black can depend on that switching voltage levels changes to white switch speed (rise time) The biggest.Owing to when being switched to orange from black, red pixel has than green and blue picture The switching voltage that element is bigger, therefore the red pixel in region 116 can be than green and blue pixel Switch faster from black, thus cause the fuzzy color in region 118.Especially, in district The pixel of the display 14 in territory 118 can be owing to red sub-pixel be relative to blue and green The switch speed of the enhancing of pixel and develop into obvious redness potentially.

At the leading edge 116 of object 112, pixel is switched to object 112 from background color 110 Color.Such as, the pixel in leading edge 116 may be switched to from (245,178,66) Black (0,0,0).Red pixel in this case can be than green and blue pixel table Reveal somewhat slower die-away time, thus cause Lycoperdon polymorphum Vitt motion blur.

Illustrate have the pixel of different colours how can potentially in the particular color transition period with not With speed switching curve chart shown in the curve chart of Fig. 8, its sub-pixel absorbance T (being directly proportional to sub-pixel output intensity) is plotted as the function of time t.Example at Fig. 8 In, it is shown that the situation at the trailing edge 118 of Fig. 7.Initially (at time t1), as Element is black (0,0,0).At time t3, object 112 removed from edge 118 and It is (that is, red sub that each sub-pixel can have sufficient time to obtain its desired desired value Pixel acquisition value 245, green sub-pixels acquisition value 178 and blue subpixels obtain 66 must be worth).Redness, green and blue subpixels interlude between time t1 and t3 Handoff procedure in conventional display by curve 120 (for redness), 122 (for Green) and 124 (for bluenesss) illustrate.(it does not has in the curve chart of Fig. 8 these curves Have and be normalized) show the conversion with friction speed.Green and blue curve 122 and 124 Change relatively slow.Red curve (curve 120) conversion is fast, because for red sub-picture The desired value of a relatively high (245) of element.Because red curve 120 and green curve 122 and Blue curve 124 is compared and is steeply risen, therefore, and the color of the pixel in trailing edge 118 (being associated with time t2) will be the reddest in color.

In order to recover desired flat between the redness in trailing edge 118, green and blue subpixels Weighing and therefore minimize red motion blurring effect, the sub-pixel of display 14 can be joined It is set in some handoff scenario (such as, when as combined being switched to from black described in this example Time orange and/or when other color combine between switching time) equalize red, green and blue The switch speed of sub-pixel.Especially, shape and/or the thickness of liquid crystal layer of red sub-pixel can To be configured to slow down the cutting of red sub-pixel relative to green and blue subpixels switch speed Throw-over degree.When configured in this manner, display 14 will show slower red pixel Switching characteristic, such as curve 126.Such as time t2 interlude (that is, for Pixel in trailing edge 118), the pixel value of the red sub-pixel being associated with curve 126 with Time t2 compares with the pixel value of blue subpixels for green will not be too much.Therefore, limit Edge 118 there will not be excessive red and red motion blurring effect will be suppressed.

Pixel switching characteristic can be subject to such as electrode geometry and pixel cell thickness (that is, liquid Crystal layer thickness) impact.Wherein a kind of mode of selectivity adjustment pixel switch speed is included in Some sub-pixel changes the layout of electrode 106.Such layout figure 9 illustrates. In the example of figure 9, display 14 has the sub-pixel of three kinds of colors.Each sub-pixel with Respective V word opening in black masks 130 and corresponding one group of electricity with V-shape Pole refers to that 106 are associated.If desired, it is possible to use other in addition to V-shape Shape for electrode 106 and the pixel comprising electrode 106 opening (such as, rectangular shape, There is the sub-pixel opening of curved edge, etc.).V word electrode refers to the use with pixel openings It is merely illustrative.

The angular spread of the shape of sub-pixel and the arm of the most each V word opening and being associated The angular spread that the V word of pixel electrode refers to can be configured to the sub-pixel for different colours Different.In the example of figure 9, red sub-pixel 90R has and is at an angle of A relative to X-axis Edge 132 and there is the same parallel longitudinal direction electrode axis 133 being at an angle of A relative to X-axis Electrode refer to 106.The edge 132 of green sub-pixels 90G and blue subpixels 90B and axle 133 and its electrode be each at an angle of B relative to X-axis.The value of B can be than the value of A Little.Such as, A can be 85 ° and B can be 75 ° so that red sub-pixel 90R V word (that is, V word opening and V word electrode 106) than green sub-pixels 90G and blueness The V word of sub-pixel 90B less bends.If desired, it is possible to use other angle.

In each sub-pixel, the longitudinal axis 133 of pixel electrode 106 is parallel to V word edge 132 Extend, during therefore the difformity of sub-pixel causes the electric field that produced by sub-pixel and sub-pixel Between liquid crystal molecule different towards.

The liquid crystal material of the liquid crystal layer 52 constituting display 14 can be negative liquid crystal material or positive liquid Brilliant material.Negative liquid crystal watch reveals negative dielectric anisotropic, and positive liquid crystal watch reveal positive dielectric respectively to The opposite sex.Liquid crystal molecule (liquid crystal) in negative liquid crystal is substantially aligned vertically (i.e., with the electric field applied The longitudinal axis of negative liquid crystal molecule will be oriented orthogonal to the electric field applied from electrode 106).At positive liquid Liquid crystal molecule in crystalline substance is directed at the field parallel of applying that (that is, the longitudinal axis of positive liquid crystal molecule will be fixed To for being parallel to the electric field applied).

In the negative liquid crystal configuration of display 14, the longitudinal axis of negative liquid crystal molecule is by electricity Pole 106 extends along an axis X before applying electric field.In the positive liquid crystal configuration of display 14, The longitudinal axis of positive liquid crystal molecule is extended in the forward position Y-axis being applied electric field by electrode 106.Although Have vertical initial (rotation) towards, but by relevant to negative, positive liquid crystal molecule The edge 130 relative to sub-pixel that the liquid crystal dipole of connection produces (and therefore electrode 106 The longitudinal axis 133) angle be identical.In the present example, when negative liquid crystal does not rotates along Y Edge 132 relative to red sub-pixel 90R is produced by the dipole of the negative liquid crystal that axle extends (dipole of the negative liquid crystal i.e., in the present example, not rotated, is to electrode 106 for the angle of 90-A The longitudinal axis will be 5 °).When positive liquid crystal does not rotates, the dipole of positive liquid crystal, extends along Y-axis And therefore edge 132 relative to red sub-pixel 90R is produced identical angle 90-A (longitudinal axis of the dipole of the positive liquid crystal i.e., in the present embodiment, not rotated to electrode 106 will It it is 5 °).In sub-pixel 90G and 90B, liquid crystal molecule dipole and electrode 106 Angle between the longitudinal axis 133 will be 15 °, and (that is, the angle being compared to red sub-pixel is big Angle).

In liquid crystal dipole with for increase between green and the longitudinal electrode axle of blue subpixels Angle will be tended to relative to red sub-pixel in the handover situations combining the type that Fig. 7 describes Increase its switch speed, and will be therefore for red motion fuzzy compensation display 14.Though So employ 5 ° and 15 ° angle for this example, but if desired, permissible Use other electrode axis to the angle value of liquid crystal dipole.Sub-pixel has V-shaped wherein In the structure of shape, can be that red sub-pixel uses ratio to be that green uses more with blue subpixels The V word of smooth (less bending), the switching of the red sub-pixel that slows down with help, and from And suppress when black object is facing to having the content (the most orange) that BELAND normal complexion green content is redder Background red motion blurring effect when moving.

Figure 10 is wherein to for having the dipole that is unmodified and that the revise son to electrode shaft angle The curve chart of the simulation of absorbance T that the pixel voltage Vp that pixel applies draws.When angle not Amendment (such as, 10 °) time, sub-pixel realization is had 4.5 volts execute alive 245 Level of transmittance (for switching phase of red sub-pixel in this black to orange switching example The level hoped) (curve 140), but when red sub-pixel is modified to demonstrate 5 ° When dipole is to electrode shaft angle, by only with applying 4 volts of absorbancies just realizing this equating expections Level (curve 142).Utilize the layout of amendment (such as, for the less bending of red pixel The layout of V word), it is achieved the relatively low pixel voltage value needed for pixel value 245 will allow Red sub-pixel utilizes relatively low voltage to switch.Relatively low switching voltage is (that is, in this example Son is 4 volts rather than 4.5 volts) red pixel switch speed will be caused to be dropped as expected Low.

If desired, electrode 106 can have the V word of band bending.Such as, as Shown in the illustrative configuration of Figure 11, electrode 106 can have major part, wherein The finger piece of electrode extends parallel to each other (and relative to for explanation temper in fig. 11 The Y-axis of pixel orients with the angle of the most illustrative angle 90-A).Bending in electrode 106K can be had different angles (that is, the angle more than 90-A) by relative to Y-axis The short segment of electrode is formed.106K is permissible in bending, such as, is positioned at the center of electrode 106 (that is, with formed center bending part) and/or in the end of electrode 106 (that is, with shape Become end bending).

Figure 12 is electrode 106 illustrative for wherein electrode 106 with non-V-shape Layout.In the example in figure 12, electrode refers to that 106 (that is, longitudinal electrode spindles 133) are across often Individual sub-pixel diagonal extends.Electrode refers to that 106 are oriented relative in red sub-pixel 90R Y-axis become the angle of 90-A (so that electrode spindle is oriented relative to liquid crystal dipole angulation Degree 90-A).Green sub-pixels 90G can have electrode and refer to 106, and its axis 133 orients For relative to the angled 90-B of Y-axis (with relative to liquid crystal dipole).Blue subpixels 90B can have electrode equally and refer to 106, and its axis 133 is oriented relative to liquid crystal dipole Angled 90-B, or if desired, the blue subpixels 90-B of Figure 12 (and Other blue subpixels any, the V word blue subpixels etc. of such as Fig. 9) can have Different angle (such as, angle 90-C, wherein C from B is different and different with A). The most each sub-pixel colors has the structure of the finger piece with different angles orientation can be to aobvious Show device 14 provide strengthen ability to prevent different types of color motion obscure, but may The display more equal than wherein angle C and B consumes more area.

Figure 13 is shown in which that (such as, the sub-pixel in row n) has from axle Y some row Rotate (such as sub-pixel 90R anglec of rotation 90-A with for sub-pixel slightly clockwise 90G anglec of rotation 90-B and rotate another angle optionally for blue pixel 90B Electrode 90-C) refers to 106, and has wherein electrode and referred to for 106 the most somewhat inverse times The illustrative configuration of other row (such as, row n+1) that pin rotates.

Usually, sub-pixel 90R, 90G and 90B can have any suitable shape of band The electrode of (that is, relative to any suitable electrode of the liquid crystal dipole of layer 52 refer to towards). The electrode structure of Fig. 9,11,12 and 13 is merely illustrative.

If desired, the switch speed of red sub-pixel can be by relative to blue and green Sub-pixels is that red sub-pixel increase cell gap slows down.Such structure is at figure Shown in the cross-sectional side view of the display 14 of 14.Go out as shown in Figure 14, filter Color device layer 56 can have color-filter layer substrate 56A (such as, such as clear glass, plastics, The transparent material layer of pottery etc.).Color filter element, such as red element R, green components G Can be patterned onto on substrate 56A with blue element B (such as, utilizes Photoimageable to colour Polymer and lithographic patterning techniques).Black mask layer 130 can have V word opening or with Other suitable opening of color filter element alignment.

Utilize half-tone mask, many masks and Multiple depositions step, or other technology, permissible The deposited over arrays of the color filter element on substrate 56A has the transparent outer painting of multiple thickness Layer, such as external coating 56B (such as, transparent Photoimageable polymeric layer or other is suitable Layer).Layer 56B can have T1 in covering the region of red sub-pixel of display 14 Thickness, and can have in the green of display 14 and blue subpixels and such as distinguish Thicker thickness for thickness T2 and T3.Thickness T2 and T3 can be equal to each other or can Being different.Therefore, in red sub-pixel, the thickness (D1) of liquid crystal layer 52 will be than green Thicker with the thickness (respectively D2 and D3) in blue subpixels.Switch speed is for relatively Thick cell gap is relatively slow, and (such as, die-away time may be to square being directly proportional also of thickness of liquid crystal And when thickness of liquid crystal layer increases the rise time can increase similarly).When sub with blueness and green When the value of thickness of liquid crystal layer D2 with D3 less in pixel compares, in red sub-pixel The value of bigger thickness of liquid crystal layer D1 will be therefore relative to green and blue subpixels switch speed The red sub-pixel that slows down switch speed, in order to moving all when the background facing to such as background 110 The red motion blurring effect of the type that can occur during such as the object of object 112 compensates.

If desired, the selectivity pixel pitch of the type that figure 14 illustrates adjusts machine System can planarize with the electrodes selective axle of the type shown in Fig. 9,11,12 and 13 Mechanism is applied in combination and/or can make the sub-pixel structure of the sub-pixel for particular color Other selectivity adjusts, fuzzy to compensate color motion.The example of Fig. 9,11,12 and 13 It is merely illustrative.

According to embodiment, it is provided that have the liquid crystal display of the row and column of pixel, wherein pixel Including the sub-pixel of multiple different colours, this liquid crystal display includes upper and lower display layer, And the liquid crystal material layer between the display layer of upper and lower, in the display layer of upper and lower At least one layer includes substrate, and the pixel electrode for sub-pixel, and pixel electrode is at substrate Upper formation, pixel electrode has the longitudinal axis, and the liquid crystal molecule in liquid crystal material initially passes through utilization Pixel electrode applies electric field and does not rotates and have even relative to the longitudinal axis generation of pixel electrode Extremely son is to the dipole being associated of electrode shaft angle, and the idol of the sub-pixel for different colours Extremely son is different to electrode shaft angle.

According to another kind of embodiment, described sub-pixel includes the son of red sub-pixel and other color Pixel, and it is used for the dipole of red sub-pixel to electrode shaft angle and the son for other color The dipole of pixel, is different to electrode shaft angle.

According to another kind of embodiment, the sub-pixel of other color described includes green and blueness sub-picture Element, and to electrode shaft angle and it is used for green and blueness sub-picture for the dipole of red sub-pixel The dipole of element, is different to electrode shaft angle.

According to another kind of embodiment, for the dipole of described red sub-pixel to electrode shaft angle ratio Little to electrode shaft angle for the dipole of described green and blue subpixels.

According to another kind of embodiment, described pixel electrode has V-shape, and described red The pixel electrode of sub-pixels has the V than the pixel electrode in described green and blue subpixels The V-shape that word shape less bends.

According to another kind of embodiment, described sub-pixel include red sub-pixel, blue subpixels and Green sub-pixels, and described blueness has different from described red sub-pixel with green sub-pixels The pixel electrode of shape so that described blueness and green sub-pixels show to be had and described redness The curve of the sub-pixel difform normalized absorbance voltage to applying.

According to embodiment, it is provided that have the liquid crystal display of the row and column of pixel, wherein pixel Including redness, green and blue subpixels, this liquid crystal display includes upper and lower display layer, And the liquid crystal material layer between the display layer of upper and lower, in the display layer of upper and lower At least one layer includes substrate, and the external coating on substrate, external coating with redness sub-picture The region that element is overlapping has the first thickness and has in the region overlapping with green sub-pixels Second thickness bigger than the first thickness, to minimize when black object is when colored background moves Motion blur effects.

According to another kind of embodiment, described substrate forms a part for top display layer, described in have Color background has red sub-pixel value, green subpixel values and blue subpixels value, red sub-picture Element value is more than green and blue subpixels value, and described liquid crystal display includes filter on substrate The array of color device element.

According to another kind of embodiment, described external coating is formed on the array of color filter element.

According to another kind of embodiment, described external coating is overlapping with both green and blue subpixels Region in there is the second thickness.

According to another kind of embodiment, the array of described color filter element is included in red sub-pixel Red color filter elements, green filter elements in green sub-pixels and at blue sub-picture Blue color filter elements in element, and described external coating is overlapping with red color filter elements Region has the first thickness and is having in blue and that green filter elements is overlapping region There is the second thickness.

According to another kind of embodiment, described liquid crystal display is included in the thin film in the display layer of bottom Transistor layer.

According to another kind of embodiment, described liquid crystal display is included in the thin film in the display layer of top Transistor layer.

According to another kind of embodiment, described blue and described green sub-pixels has and described redness The shape that sub-pixel is different.

According to another kind of embodiment, described sub-pixel has V-shape, and described redness Sub-pixel has the V less bent than the V-shape of described green and described blue subpixels Word shape.

According to a kind of embodiment, it is provided that there is the liquid crystal display of the row and column of pixel, wherein Pixel includes the sub-pixel of first, second, and third color, and this liquid crystal display includes comprising Portion's layer and the display layer of lower layer, and the liquid crystal material layer between upper layer and lower layer, At least one layer in upper layer and lower layer includes substrate and has for sub-pixel on substrate The black mask layer of opening, and the picture that the edge with opening formed in display layer is directed at Element electrode, for second and the 3rd the pixel electrode of sub-pixel of color have with for the first face The shape that the pixel electrode of the sub-pixel of color is different.

According to another kind of embodiment, the pixel electrode of the sub-pixel of described first color has first V-shape, and described second and the 3rd the pixel electrode of sub-pixel of color have and first The second V-shape that V-shape is different.

According to another kind of embodiment, described first color includes redness.

According to another kind of embodiment, described second and the 3rd color include green and blueness respectively.

According to another kind of embodiment, described in there is the pixel electrode ratio of the first V-shape opening The described pixel electrode with the second V-shape less bends.

More than it is merely illustrative and in the feelings of the scope and spirit without departing substantially from described embodiment Under condition, various amendment can be made by those skilled in the art.Above-described embodiment can be individually Or realize in any combination.

Claims (20)

1. there is a liquid crystal display for the row and column of pixel, wherein pixel include multiple not With the sub-pixel of color, this liquid crystal display includes:

Top display layer and bottom display layer；And

Liquid crystal material layer between top display layer and bottom display layer, its middle and upper part display layer Include with at least one layer in the display layer of bottom:

Substrate；And

For the pixel electrode of sub-pixel, wherein pixel electrode is formed on substrate, wherein Pixel electrode has the longitudinal axis, and wherein the liquid crystal molecule in liquid crystal material initially passes through utilization Pixel electrode applies electric field and does not rotates, and has the longitudinal axis relative to pixel electrode Produce the dipole being associated to the electrode shaft angle dipole, and wherein for different face The dipole of the sub-pixel of color is different to electrode shaft angle.

2. liquid crystal display as claimed in claim 1, wherein said sub-pixel includes redness Sub-pixel and the sub-pixel of other color, and wherein it is used for the dipole of red sub-pixel to electricity Pole axis angle is different to electrode shaft angle from the dipole of the sub-pixel for other color.

3. liquid crystal display as claimed in claim 2, the sub-picture of other color wherein said Element includes green sub-pixels and blue subpixels, and wherein for the dipole of red sub-pixel Different to electrode shaft angle from the dipole for green sub-pixels and blue subpixels to electrode shaft angle.

4. liquid crystal display as claimed in claim 3, wherein for described red sub-pixel Dipole to electrode shaft angle less than the dipole for green sub-pixels and blue subpixels to electric Pole axis angle.

5. liquid crystal display as claimed in claim 4, wherein said pixel electrode has V Word shape, and the V-shape of the pixel electrode of wherein said red sub-pixel is greener than described The V-shape of the pixel electrode in sub-pixels and blue subpixels less bends.

6. liquid crystal display as claimed in claim 1, wherein said sub-pixel includes redness Sub-pixel, blue subpixels and green sub-pixels, and wherein said blue subpixels and green Sub-pixel has pixel electrode difform with described red sub-pixel so that described blue son Pixel and green sub-pixels show that to have normalization difform with described red sub-pixel saturating Penetrate the curve of the rate voltage to applying.

7. having a liquid crystal display for the row and column of pixel, wherein pixel includes red son Pixel, green sub-pixels and blue subpixels, this liquid crystal display includes:

Top display layer and bottom display layer；And

Liquid crystal material layer between top display layer and bottom display layer, its middle and upper part display layer Include with at least one layer in the display layer of bottom:

Substrate；And

External coating on substrate, external coating is in the region overlapping with red sub-pixel There is the first thickness and have thicker than the first in the region overlapping with green sub-pixels Spend the second big thickness, to minimize when black object fortune when colored background moves Dynamic blurring effect.

8. liquid crystal display as claimed in claim 7, wherein said substrate forms top and shows Show that a part for layer, wherein said colored background have red sub-pixel value, green subpixel values With blue subpixels value, wherein red sub-pixel value is more than green subpixel values and blue subpixels It is worth, and wherein said liquid crystal display also includes the array of color filter element on substrate.

9. liquid crystal display as claimed in claim 8, wherein said external coating is at color filter Formed on the array of element.

10. liquid crystal display as claimed in claim 7, wherein said external coating with green The region that both sub-pixel and blue subpixels are overlapping has the second thickness.

11. liquid crystal displays as claimed in claim 10, wherein said color filter element The red color filter elements that array is included in red sub-pixel, the green in green sub-pixels Color filter element and the blue color filter elements in blue subpixels, and wherein said outer painting Layer have in the region overlapping with red color filter elements the first thickness and with blue color The region of device element and green filter elements overlap has the second thickness.

12. liquid crystal displays as claimed in claim 11, are additionally included in the display layer of bottom Tft layer.

13. liquid crystal displays as claimed in claim 11, are additionally included in the display layer of top Tft layer.

14. liquid crystal displays as claimed in claim 7, wherein said blue subpixels and institute State green sub-pixels and there is the shape different from described red sub-pixel.

15. liquid crystal displays as claimed in claim 7, wherein said sub-pixel has V Word shape, and the V-shape of wherein said red sub-pixel is than described green and blueness The V-shape of pixel less bends.

The liquid crystal display of 16. 1 kinds of row and columns with pixel, wherein pixel includes the first face Color, the second color and the sub-pixel of the 3rd color, this liquid crystal display includes:

Including upper layer and the display layer of lower layer；And

Liquid crystal material layer between upper layer and lower layer, wherein in upper layer and lower layer At least one layer includes substrate and has the black mask layer of the opening for sub-pixel on substrate； And

The pixel electrode that the edge with opening formed in display layer is directed at, wherein for second The pixel electrode of the sub-pixel of color and the 3rd color has and the sub-pixel for the first color The shape that pixel electrode is different.

17. liquid crystal displays as claimed in claim 16, the son of wherein said first color The pixel electrode of pixel has the first V-shape, and wherein said second color and the 3rd The pixel electrode of the sub-pixel of color has second V-shape different from the first V-shape.

18. liquid crystal displays as claimed in claim 17, wherein said first color includes Red.

19. liquid crystal displays as claimed in claim 18, wherein said second color and Three colors include green and blueness respectively.

20. liquid crystal displays as claimed in claim 19, wherein said have a V word The pixel electrode described in the pixel electrode ratio of configured openings with the second V-shape less bends.