CN1224951C - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
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- CN1224951C CN1224951C CN 01112395 CN01112395A CN1224951C CN 1224951 C CN1224951 C CN 1224951C CN 01112395 CN01112395 CN 01112395 CN 01112395 A CN01112395 A CN 01112395A CN 1224951 C CN1224951 C CN 1224951C
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- orientation control
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Abstract
The present invention relates to a plane display. A plurality of first orientation control structures are arranged on an upper basal plate, an upper groove is formed between every two adjacent first orientation control structures, and an upper inclined plane is formed between each first orientation control structure and each upper groove. A plurality of second orientation control structures are arranged on a lower basal plate, a lower groove is formed between every two adjacent second orientation control structures, and a lower inclined plane is formed between each second orientation control structure and each lower groove. The upper inclined plane and the lower inclined plane are mutually adjacent, so the electric field direction near the upper inclined plane and the lower inclined plane is changed.
Description
Technical field
The present invention relates to a kind of LCD, particularly relate to a kind of multidomain (multi-domain) LCD.
Background technology
LCD (1iquid crystal display), it is the effect that utilizes extra electric field, make liquid crystal molecule rotate, be changed to other state of orientation by specific initial stage orientation (alignment), and be accompanied by the variation that liquid crystal molecular orientation changes various optical properties such as many refractivityes, optical activity, dichromatism, the light property at random produced, optically-active dispersion, will be converted into visual variation.Employed electric optical material in other optical elements, liquid crystal only need low-voltage, low consumption electric power that optical property is produced significantly to change, and do not need further machine-shaping.In addition, LCD has thin thickness, advantage such as in light weight, occupies considerable status at present in flat-panel screens market.
The display mode of LCD can be because of selecting different types of liquid crystal different.Wherein a kind of many refractivityes of controlling liquid crystal molecule with extra electric field, be referred to as automatically controlled briefringence (electrically controlled briefringence, ECB) effect, it promptly is the alignment films of utilizing nematic (nematic) liquid crystal collocation use vertical orientated (vertical alignment) processing of negative dielectric anisotropic (negative dielectric anisotropy), when impressed voltage surpasses critical voltage, originally be vertically arranged in the liquid crystal molecule of alignment layer surface, just can do the inclination of certain angle along with corresponding voltage swing.And, in order further to control the change in orientation state of liquid crystal molecule, prior art is made the orientation control structure on liquid crystal display substrate, the orientation farmland (domain) in the pixel region is increased, and has the color contrast of the broad visual field and height with the display effect of guaranteeing LCD.
Please refer to Fig. 1, Figure 1 shows that the diagrammatic cross-section of available liquid crystal display.Available liquid crystal display 10 includes a upper and lower transparent glass substrate 12,14, and a negative dielectric anisotropy liquid crystal 16 is filled between the upper and lower substrate 12,14.Be respectively equipped with an electrode 18,22 and one vertical orientated layer 20,24 on the inner surface of upper and lower substrate 12,14, and be respectively equipped with a Polarizer (polarizer) 26,28 on the outer surface of upper and lower transparent glass substrate 12,14.Generally speaking, upper substrate 12 is intended for a colour filter (color filter) substrate, infrabasal plate 14 is intended for a thin film transistor (TFT) (thin film transistor) substrate, and which is provided with a plurality of thin film transistor (TFT)s (hereinafter to be referred as TFT), electrode 22 and an active matrix driving circuit (active matrix drive circuit), and infrabasal plate 14 lip-deep electrodes 22 can be used as a pixel capacitors.In addition, available liquid crystal display 10 includes many first strip protrusions 30 in addition, be located between the electrode 18 and vertical orientated layer 20 of upper substrate 12, and many second strip protrusions 32, be located between the electrode 22 and vertical orientated layer 24 of infrabasal plate 12, all be intended for the orientation control structure of the change in orientation of control liquid crystal 16.
Please refer to Fig. 2, Figure 2 shows that the top view of orientation control structure shown in Figure 1, and the diagrammatic cross-section of the tangent line I-I ' of Fig. 2 is shown in Figure 1.Include a plurality of gate lines 36, signal wire 38, TFT structure 39 and pixel capacitors 22 in the LCD 10.The first strip protrusion 30 of upper substrate 12 is arranged at gate line 36 tops in the mode of parallel gate line 36, and 32 of the second strip protrusions of infrabasal plate 14 are the central parts that pass through pixel capacitors 22 in the mode of parallel gate line 36.Therefore, all first strip protrusion 30 and the second strip protrusions 32 are alternately to be arranged in the LCD 10 in mode parallel to each other.
Please refer to Fig. 3 and Fig. 4, Fig. 3 and Fig. 4 show the change in orientation of liquid crystal shown in Figure 1 16.As shown in Figure 3, because negative dielectric anisotropy liquid crystal 16 is arranged at vertical orientated layer 20, between 24, therefore when impressed voltage is not in LCD 10 as yet, all liquid crystal molecules can be with the vertical orientated layer 20 perpendicular to relative position, 24 mode is arranged, wherein be positioned at adjacent protrusion 30, the arrangement mode of liquid crystal molecule 16A between 32 is perpendicular to substrate 12,14, and be positioned at strip projected parts thing 30, the arrangement mode of the liquid crystal molecule 16B of 32 tops then is a vertical protrusion thing 30,32 surface, go up relatively, infrabasal plate 12,14, then liquid crystal molecule 16B presents the inclination of certain angle.
As shown in Figure 4, impressed voltage is after LCD 10, originally be vertically arranged in the negative dielectric anisotropy liquid crystal 16 on vertical orientated layer 20,24 surface, can be towards rotating perpendicular to direction of an electric field, and along with corresponding voltage swing is done the inclination of certain angle, the direction of arrow in the diagram is meant the change in orientation of liquid crystal 16.For instance, be located at the liquid crystal molecule 16B of the second strip protrusion, 32 tops
1The angle tilt of upper right lower-left (originally with) can tend to be parallel to the direction of vertical orientated layer 20,24 and rotation in a clockwise direction, and then make adjacent liquid crystal molecule 16A in impressed voltage after
1Also rotate in a clockwise direction.Similarly, be located at the liquid crystal molecule 16B of the second strip protrusion, 32 tops
2The angle tilt of upper left bottom right (originally with) can tend to be parallel to the direction of vertical orientated layer 20,24 and with rotation counterclockwise, and then make adjacent liquid crystal molecule 16A in impressed voltage after
2Also counterclockwise to rotate.
Please refer to Fig. 5, Figure 5 shows that the orientation farmland top view of liquid crystal shown in Figure 4 16.Because impressed voltage is after LCD 10, liquid crystal 16 can be towards rotating perpendicular to direction of an electric field, makes liquid crystal molecule 16B
1, 16A
1Rotate in a clockwise direction, and make liquid crystal molecule 16B
2, 16A
2Counterclockwise to rotate, therefore the liquid crystal in a pixel area 16 can be boundary with the second strip protrusion 32, respectively at two orientations of generation farmlands, both sides of the second strip protrusion 32.Arrow in the diagram is meant the orientation of liquid crystal 16.
Yet existing orientation control structure can only make and produce two orientation farmlands in the pixel area, still can't satisfy the needed broad visual field of LCD and height color contrast.And, prior art will be orientated the strip projected parts thing 30,32 that control structure is designed to most bars, then the locational transmittance of each strip projected parts thing 30,32 all descends, therefore for whole display panel, the transmittance loss severity is big, cause brightness to lower, contrast decline, this display quality for LCD 10 also can cause bad influence.
Summary of the invention
In view of this, the objective of the invention is to be to provide a kind of multidomain liquid crystal display, to solve the above problems.
The present invention proposes a kind of flat-panel screens, includes a upper substrate and an infrabasal plate, and upper substrate is provided with a top electrode, and infrabasal plate is provided with a bottom electrode, can apply an electric field between this top electrode and this bottom electrode.This flat-panel screens also comprises a liquid crystal that is filled in the negative dielectric anisotropic between upper substrate and the infrabasal plate, be arranged in a plurality of first orientation control structures, on the upper substrate is formed at upper grooves and between per two these adjacent first orientation control structures and is formed at top incline between each this first orientation control structure and each this upper groove.This flat-panel screens also comprises a plurality of second on infrabasal plate orientation control structures, that are arranged in and is formed at low grooves and between per two these adjoining second orientation control structures and is formed at bottom incline between each this second orientation control structure and each this low groove.Wherein the second orientation control structure is positioned at the below of upper groove, low groove is positioned at first orientation texture below, and the second orientation control structure and upper groove have the essence same size, the first orientation control structure and low groove have the essence same size, so that top incline and bottom incline are near each other, use the direction that changes this top incline and near the electric field of this bottom incline.At least comprise one first orientation control structure and one second orientation control structure in each pixel region, and in the row and column of each pixel region, the first and second orientation control structures are staggered all.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
Figure 1 shows that the diagrammatic cross-section of available liquid crystal display.
Figure 2 shows that the top view of liquid crystal aligning control structure shown in Figure 1.
Figure 3 shows that liquid crystal shown in Figure 1 is in the display orientation synoptic diagram during impressed voltage not.
Figure 4 shows that liquid crystal shown in Figure 1 change in orientation figure after the display impressed voltage.
Figure 5 shows that liquid crystal rotation direction synoptic diagram shown in Figure 4.
Figure 6 shows that the diagrammatic cross-section of the LCD of first embodiment of the invention.
Figure 7 shows that orientation control structure top view shown in Figure 6.
Fig. 8 A, 9A are depicted as liquid crystal shown in Figure 6 orientation synoptic diagram when impressed voltage not.
Fig. 8 B, 9B are depicted as liquid crystal shown in Figure 6 orientation synoptic diagram after impressed voltage.
Figure 10 A is depicted as liquid crystal rotation direction synoptic diagram shown in Figure 9.
Figure 10 B is depicted as the top view of liquid crystal rotation direction shown in Figure 9.
Figure 11 and the change in orientation that Figure 12 shows that the liquid crystal of second embodiment of the invention.
Figure 13 A is depicted as liquid crystal rotation direction synoptic diagram shown in Figure 12.
Figure 13 B is depicted as the top view of liquid crystal rotation direction shown in Figure 12.
Figure 14 is first kind of distribution (layout) top view of orientation control structure of the present invention.
Figure 15 is second kind of distribution top view of orientation control structure of the present invention.
Figure 16 is the third distribution top view of orientation control structure of the present invention.
Figure 17 is the 4th a kind of distribution top view of orientation control structure of the present invention.
[symbol description]
40～LCD; 42～upper substrate;
44～infrabasal plate; 46～liquid crystal;
48,52～electrode; 50,54～liquid crystal aligning layer;
56～the first orientation control structures; 57～upper substrate groove;
58～the second orientation control structures; 59～infrabasal plate groove;
60～gate line; 61A～top incline;
61B～bottom incline; 62～signal wire;
64～TFT。
Embodiment
[first embodiment]
Please refer to Fig. 6, Figure 6 shows that the diagrammatic cross-section of the LCD 40 of first embodiment of the invention.The LCD 40 of first embodiment of the invention includes a upper and lower transparent glass substrate 42,44, and a negative dielectric anisotropy liquid crystal molecule 46 is filled between the upper and lower substrate 42,44.Be respectively equipped with an electrode 48,52 and one vertical orientated layer 50,54 on the inner surface of upper and lower substrate 42,44.And on the outer surface of upper and lower substrate 42,44 a Polarizer (not shown) can be set respectively.Generally speaking, upper substrate 42 is an optical filter (color filter) substrate, 44 of infrabasal plates are intended for a thin film transistor (TFT) (thin film transistor, hereinafter to be referred as TFT) substrate, which is provided with a plurality of TFT structures, electrode 52 and an active matrix driving circuit (active matrix drive circuit) (not shown), be located at infrabasal plate 44 lip-deep electrodes 52 and then be intended for a pixel capacitors (pixelelectrode) 52.Be arranged at the existing structure of upper and lower substrate 42,44 about TFT structure, Polarizer, optical filter etc., below repeat no more.
Please refer to Fig. 7, Fig. 7 is the top view of orientation control structure shown in Figure 6, and Fig. 6 is the diagrammatic cross-section along the tangent line II-II ' of Fig. 7.Active matrix driving circuit in the LCD 40 includes a plurality of gate lines 60, signal wire 62, TFT structure 64 and pixel capacitors 52.Approximate rectangular pixel area of definition between per two gate lines 60 and per two signal wires 62, each pixel area is divided into four orientation area.Wherein, two first orientation control structures 56 are located at respectively in two non-conterminous " upper right orientation area " and " lower-left orientation area ", and two second orientation control structures 58 are located at respectively in other two non-conterminous " upper left orientation area " and " bottom right orientation area ".First and second orientation control structure 56,58 is located on the different substrate, that is to say, the first orientation control structure 56 is located on the upper substrate 42, and the second orientation control structure 58 is located on the infrabasal plate 44.First and second orientation control structure 56,58 lays respectively on the electrode 48,52, and first and second orientation control structure 56,58 tops are provided with liquid crystal aligning layer 50,54.By among the figure as can be known, a plurality of first orientation control structures 56 in the LCD 40 and a plurality of second orientation control structure 58 can form arranged, can be used to control the orientation of liquid crystal molecule 46.
Therefore, the LCD 40 of first embodiment of the invention comprises: (1) is in the first orientation control structure 56 that upper substrate 42 surfaces form corresponding to " the upper right orientation area " of each pixel area with " lower-left orientation area ", locate with " upper left orientation area " in " bottom right orientation area " corresponding to this pixel area simultaneously, that is between two first orientation control structures 56, form a upper substrate groove 57.(2) " the bottom right orientation area " corresponding to each pixel area is in the second orientation control structure 58 that infrabasal plate 44 surfaces form with " upper left orientation area ", locate with " lower-left orientation area " in " upper right orientation area " corresponding to this pixel area simultaneously, that is two second the orientation control structure 58 between, form substrate recess 59.Therefore, this first orientation control structure 56 is the tops corresponding to this infrabasal plate groove 59, and this second orientation control structure 58 is the belows corresponding to this upper substrate groove 57.First, second orientation control structure 56,58 all is one to have the rectangular parallelepiped protrusion of flat surfaces, and first orientation control structure 56 be inclined surface with the top incline 61A and the second orientation control structure 58 that upper substrate groove 57 has a common boundary with the bottom incline 61B that infrabasal plate groove 59 has a common boundary, can be used for controlling the change in orientation of liquid crystal 46.In each pixel area of present embodiment, the bottom incline 61B of the second orientation control structure 58 of the top incline 61A of the first orientation control structure 56 and vicinity is overlapping several portions up and down, can also be without any overlapping.
Please refer to Fig. 8 A and Fig. 8 B, Fig. 8 A and Fig. 8 B are for selecting control liquid crystal molecule 46 and the specific inductive capacity difference that is orientated control structure 56,58, be easier to by liquid crystal molecule 46 at line of electric force, and difficulty demonstrates the change in orientation of liquid crystal molecule shown in Figure 6 46 by under first, second orientation control structure 56,58 situations.Shown in Fig. 8 A, when impressed voltage was not in LCD 40, because negative dielectric anisotropy liquid crystal molecule 46 is vertically installed between the liquid crystal aligning layer 50,54, all liquid crystal molecules can be to arrange perpendicular to the mode of liquid crystal aligning layer 50,54.Therefore the arrangement mode that wherein is positioned at the liquid crystal molecule 46A on flat surfaces of first, second orientation control structure 56,58 is perpendicular to substrate 42,44, and the arrangement mode of the liquid crystal molecule 46B between upper and lower dip plane 61A, 61B then is that the gradient along with upper and lower dip plane 61A, 61B presents the inclination of certain angle.Shown in Fig. 8 B,, can produce the electric field of direction shown in the direction of arrow when impressed voltage during in LCD 40; And originally be vertically arranged in the negative dielectric anisotropy liquid crystal 46 on vertical orientated layer 50,54 surface, can be towards rotating perpendicular to direction of an electric field, and do the inclination of certain angle along with corresponding electric field level.
Because staggered (interleaved) up and down design of first, second orientation control structure 56,58, and electric field is easily by liquid crystal molecule 46, so can make the electric field between upper and lower dip plane 61A, 61B can produce distortion in the horizontal direction, and produce an oblique electric field, so liquid crystal molecule 46B can present a specific toppling direction for vertical this oblique electric field.With Fig. 8 B is that example illustrates, the direction of an electric field between between bottom incline 61B and top incline 61A can be twisted to upper left significantly by the bottom right, so liquid crystal molecule 46B can rotate towards the first orientation control structure, 56 places for vertical this oblique electric field; The influence of the liquid crystal molecule 46B that near being positioned at liquid crystal molecule 46A then can be toppled over, its arrangement mode also can present identical toppling direction.
Refer again to Fig. 9 A～9B, Fig. 9 A～9B is for selecting control liquid crystal molecule 46 poor with the specific inductive capacity of orientation control structure 56,58, difficult at electric field by liquid crystal molecule 46, and be easier to be orientated under the situation of control structure 56,58 by first, second, show the change in orientation of liquid crystal molecule 46 shown in Figure 6.
Shown in Fig. 9 A, situation is identical with Fig. 8 A, and when impressed voltage was not in LCD 40, all liquid crystal molecules can be arranged in the mode perpendicular to the liquid crystal aligning layer 50,54 of relative position.That is to say that the arrangement mode that is positioned at the liquid crystal molecule 46A on first, second orientation control structure 56,58 flat surfaces is perpendicular to substrate 42,44; The arrangement mode of liquid crystal molecule 46B between upper and lower dip plane 61A, 61B then is that the gradient along with upper and lower dip plane 61A, 61B presents the inclination of certain angle.
Shown in Fig. 9 B,, can produce the direction of an electric field shown in the direction of arrow when impressed voltage during in LCD 40; And originally be vertically arranged in the negative dielectric anisotropy liquid crystal 46 on vertical orientated layer 50,54 surface, can be towards rotating perpendicular to direction of an electric field, and do the inclination of certain angle along with corresponding electric field level.
Similarly, because staggered (interleaved) up and down design of first, second orientation control structure 56,58, and electric field is difficult by liquid crystal molecule 46, can make that so the electric field between upper and lower dip plane 61A, 61B can produce distortion in the horizontal direction, and produce an oblique electric field.Therefore liquid crystal molecule 46B can present a specific toppling direction for vertical this oblique electric field.With Fig. 9 B is that example illustrates, the direction of an electric field between between bottom incline 61B and top incline 61A can be twisted to upper right significantly by the lower-left, so liquid crystal molecule 46B can rotate towards the second orientation control structure, 58 places for vertical this oblique electric field; The influence of the liquid crystal molecule 46B that near being positioned at liquid crystal molecule 46A then can be toppled over, its arrangement mode also can present identical toppling direction.
Please refer to Figure 10 A and Figure 10 B, Figure 10 A is the rotation direction synoptic diagram of liquid crystal molecule 46 shown in Figure 9, and its arrow is the orientation of liquid crystal 46; And Figure 10 B is the top view of liquid crystal molecule rotation direction shown in Figure 9.
Because liquid crystal molecule 46 can be towards rotating perpendicular to direction of an electric field, make be positioned at top incline 61A can be with near the liquid crystal molecule 46B the bottom incline 61B towards 56 rotations of the first orientation control structure, and the anglec of rotation of liquid crystal molecule 46B can further influence the arrangement mode that is positioned at " place, non-dip plane " liquid crystal molecule 46A, and form the Liquid Crystal Molecules Alignment of a progressive rotation, shown in Figure 10 B.Therefore when applying bias, the liquid crystal 46 in a pixel area can be orientated the orientation farmland that produces at least four different directions in the control structures at four, and the arrow among Figure 10 A is meant the orientation of liquid crystal 46.
According to as can be known above-mentioned, the orientation control structure of the LCD 40 of first embodiment of the invention can make and produce four orientation farmlands in the pixel area, can significantly promote the LCD 40 needed broad visuals field and height color contrast.And, compared to existing strip projected parts thing, the present invention will be orientated control structure 56,58 and be designed to the rectangular parallelepiped protrusion that has an even surface, have only the transmittance of dip plane 61A, 61B to descend, but the smooth place of rectangular parallelepiped can't cause the loss of transmittance, therefore can improve because setting up the orientation control structure and cause LCD contrast variation problem, to guarantee the display quality of LCD 40.
[second embodiment]
Please refer to Figure 11 and Figure 12, the structure of the LCD 40 of second embodiment of the invention is earlier first, second orientation control structure 56,58 to be arranged at respectively on upper and lower substrate 42,44 surfaces, again electrode 48,52 is arranged at respectively on first, second orientation control structure 56,58 surfaces, afterwards liquid crystal aligning layer 50,54 is arranged on electrode 48,52 surfaces.Just control the river lay of control structure, electrode, liquid crystal aligning layer with substrate, orientation.But the vertical projection of top incline 61A and bottom incline 61B has a spacing L (about 2～3 μ m), makes the vertical projection up and down of first, second orientation control structure 56,58 not overlapping.In addition, the structure of second embodiment is identical with first embodiment haply.
Figure 11 and Figure 12 also show the change in orientation of the liquid crystal molecule 46 of second embodiment of the invention.As shown in figure 11, because negative dielectric anisotropy liquid crystal molecule 46 is vertical orientated, therefore when impressed voltage is not in LCD 40 as yet, all liquid crystal molecules 46 can be to arrange perpendicular to the mode of liquid crystal aligning layer 50,54, and the arrangement mode that wherein is positioned at the liquid crystal molecule 46A on first, second flat surfaces that is orientated control structure 56,58 is perpendicular to substrate 42,44; The arrangement mode that is positioned at liquid crystal molecule 46B between top incline 61A and bottom incline 61B then is the inclination that presents certain angle along with the gradient of dip plane.
As shown in figure 12, in impressed voltage in LCD after 40, originally be vertically arranged in the negative dielectric anisotropy liquid crystal molecule 46 on vertical orientated layer 50,54 surface, can be towards rotating perpendicular to direction of an electric field, and do the inclination of certain angle along with corresponding voltage swing.Because electrode 48,52 is arranged on the surface of first, second orientation control structure 56,58, and extra electric field can extend to 48,52 bee-line directions of two electrodes, therefore make that the direction of an electric field between top incline 61A and bottom incline 61B produces the distortion of two kinds of different directions, so liquid crystal molecule 46B can present two kinds of rotation directions.
The direction of arrow in the diagram is meant the variation of direction of an electric field.For instance, be positioned at the liquid crystal molecule 46B on the bottom incline 61A top of the second orientation control structure 58
1Can rotate in a clockwise direction, and then make adjacent liquid crystal molecule 46A
1Also rotate in a clockwise direction.Be positioned at the liquid crystal molecule 46B of the top incline 61A bottom of the second orientation control structure 58
2Can rotate with counter clockwise direction, and then make adjacent liquid crystal molecule 46A
2Also counterclockwise to rotate.And each first orientation control structure 56 can not be overlapping about in the of 58 with the second contiguous orientation control structure, need have gap L (about 2-3 μ m) therebetween, can guarantee just that so the electric field of two orientation control structures, 56,58 boundaries becomes vergence direction to extend up and down.
Please refer to Figure 13 A and Figure 13 B, Figure 13 A is the rotation direction synoptic diagram of liquid crystal molecule 46 shown in Figure 12, and its arrow is the orientation of liquid crystal molecule; And Figure 13 B is the top view that shows liquid crystal rotation direction shown in Figure 12.The distortion that can produce two kinds of directions owing to the direction of an electric field between upper and lower dip plane 61A, 61B makes liquid crystal molecule 46B present two kinds of rotation directions, therefore is positioned at the liquid crystal molecule 46B of dip plane gap L and the adjacency first orientation control structure 56
2Rotate counterclockwise, and be positioned at the dip plane gap L and in abutting connection with second the orientation control structure 58 liquid crystal molecule 46B
1Clockwise rotate.So still can make a liquid crystal molecule 46 in the pixel area produce four orientation farmlands.
According to as can be known above-mentioned, the orientation control structure of the LCD 40 of second embodiment of the invention can make and produce four orientation farmlands in the pixel area, can significantly promote the LCD 40 needed broad visuals field and height color contrast.And compared to existing strip projected parts thing, the present invention will be orientated control structure and be designed to the rectangular parallelepiped protrusion that has an even surface, and the transmittance fall that can avoid being orientated the control structure place lowers, to guarantee the display quality of LCD 40.
Please refer to Figure 14, Figure 14 is first kind of distribution (layout) top view of orientation control structure of the present invention.Orientation control structure design according to first, second embodiment of the present invention, rectangle pixel area of 62 definition of per two adjacent gate lines 60 and per two adjacent signals lines, and first, second is orientated control structure the 56, the 58th, is arranged in the LCD 40 in the arranged mode, and include two first orientation control structures 56 and two second orientation control structures 58 in each pixel area, can form four orientation farmlands.In pixel area P (i), " upper right orientation farmland " is that the first orientation control structure 56 is set with " orientation farmland, lower-left ", and " upper left orientation farmland " is that the second orientation control structure 58 is set with " orientation farmland, bottom right ".In pixel area P (i+l), " upper left orientation farmland " is that the first orientation control structure 56 is set with " orientation farmland, bottom right ", and " upper right orientation farmland " is that the second orientation control structure 58 is set with " orientation farmland, lower-left ".
In addition, the distribution mode of orientation control structure of the present invention can be designed to variation, with the requirement on the multiple orientation farmland of fluid,matching crystal display 40.Please refer to Figure 15 to Figure 17, Figure 15 to Figure 17 is the distribution top view of orientation control structure of the present invention.As shown in figure 15, the distribution mode of second kind of orientation of the present invention control structure, be still first, second orientation control structure 56,58 is arranged in the LCD 40 in the arranged mode, and include one first orientation control structure 56 or one second orientation control structure 58 in each pixel area, can form a single orientation farmland; That is, in pixel area P (i), the second orientation control structure 58 only is set; In pixel area P (i+1), the first orientation control structure 56 only is set.
As shown in figure 16, the distribution mode of the third orientation control structure of the present invention, be still first, second orientation control structure 56,58 is arranged in the LCD 40 in the arranged mode, and include one first orientation control structure 56 and one second orientation control structure 58 in each pixel area, can form two orientation farmlands.That is in pixel area P (i), " on be orientated the farmland " is provided with the second orientation control structure 58, and " orientation farmland down " is that the first orientation control structure 56 is set; In pixel area P (i+1), " on be orientated the farmland " is provided with the first orientation control structure 56, and " orientation farmland down " is that the second orientation control structure 58 is set.
As shown in figure 17, the distribution mode of the 4th kind of orientation of the present invention control structure, be still first, second orientation control structure the 56, the 58th, be arranged in the LCD 40 in the arranged mode, and include three first orientation control structures 56 and three second orientation control structures 58 in each pixel area, can form six orientation farmlands.
Though the present invention has carried out as above describing to preferred embodiment; yet this is not in order to limit the present invention; any those of ordinary skill in the art; without departing from the spirit and scope of the present invention; should make change and modification, so protection scope of the present invention is as the criterion when looking the scope that the accompanying Claim book defined.
Claims (9)
1. LCD includes:
One upper substrate, this upper substrate is provided with a top electrode;
One infrabasal plate, this infrabasal plate is provided with a bottom electrode, can apply an electric field between this top electrode and this bottom electrode;
One negative dielectric anisotropic liquid crystals is filled between this upper substrate and this infrabasal plate;
A plurality of first orientation control structures are arranged on this upper substrate;
Be formed at the upper groove between per two adjacent described first orientation control structures;
Be formed at the top incline between each described first orientation control structure and each the described upper groove;
A plurality of second orientation control structures are arranged on the described infrabasal plate;
Be formed at the low groove between per two adjoining described second orientation control structures;
Be formed at the bottom incline between each this second orientation control structure and each this low groove;
The wherein said second orientation control structure is positioned at the below of described upper groove, described low groove is positioned at described first orientation texture below, and described second orientation control structure and described upper groove have the essence same size, described first orientation control structure and described low groove have the essence same size, so that described top incline and described bottom incline are near each other, use the direction that changes described top incline and near the electric field of described bottom incline, it is characterized in that:
At least comprise one first orientation control structure and one second orientation control structure in each pixel region, and in the row and column of each pixel region, the first and second orientation control structures are staggered all.
2. LCD as claimed in claim 1 is characterized in that, each first orientation control structure and each second orientation control structure are a rectangular parallelepiped protrusion.
3. LCD as claimed in claim 2 is characterized in that, described rectangular parallelepiped protrusion includes a smooth surface.
4. LCD as claimed in claim 2 is characterized in that, the periphery place of described rectangular parallelepiped protrusion becomes a dip plane.
5. LCD as claimed in claim 1 is characterized in that, includes two first orientation control structures and two second orientation control structures in each pixel region.
6. LCD as claimed in claim 1 is characterized in that, includes three first orientation control structures and three second orientation control structures in each pixel region.
7. LCD as claimed in claim 1 is characterized in that, each first orientation control structure is located between upper substrate and the top electrode, and each second orientation control structure is located between infrabasal plate and the bottom electrode.
8. LCD as claimed in claim 1 is characterized in that, each first orientation control structure is located at the top electrode top, and each second orientation control structure is located at the bottom electrode top.
9. LCD as claimed in claim 1 is characterized in that, a liquid crystal aligning layer respectively is set on upper substrate and the infrabasal plate, and when not applying electric field between described top electrode and the bottom electrode, described negative dielectric anisotropic liquid crystals is perpendicular to described liquid crystal aligning layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01112395 CN1224951C (en) | 2001-04-06 | 2001-04-06 | Liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01112395 CN1224951C (en) | 2001-04-06 | 2001-04-06 | Liquid crystal display |
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| Publication Number | Publication Date |
|---|---|
| CN1379383A CN1379383A (en) | 2002-11-13 |
| CN1224951C true CN1224951C (en) | 2005-10-26 |
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| CN 01112395 Expired - Lifetime CN1224951C (en) | 2001-04-06 | 2001-04-06 | Liquid crystal display |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104698687A (en) * | 2015-03-24 | 2015-06-10 | 深圳市华星光电技术有限公司 | High penetration rate VA type liquid crystal display panel and manufacturing method thereof |
| CN107608139A (en) * | 2017-09-19 | 2018-01-19 | 惠科股份有限公司 | Liquid crystal display device |
| CN108241229A (en) * | 2018-02-05 | 2018-07-03 | 京东方科技集团股份有限公司 | The production method of optical texture, display device and optical texture |
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2001
- 2001-04-06 CN CN 01112395 patent/CN1224951C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1379383A (en) | 2002-11-13 |
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Granted publication date: 20051026 |