CN101916011B - Liquid crystal display panel - Google Patents

Abstract

The invention relates to a liquid crystal display panel, discloses a design scheme that the liquid crystal molecular configuration of the liquid crystal display panel is matched with an optical compensation film and is suitable for the liquid crystal display panel taking a left rotating liquid crystal or a right rotating liquid crystal as a display medium, wherein optical properties, such as a central contrast, a visual angle and the like, of the display surface of the liquid crystal display panel can be improved by regulating the relation between the twisting angle of liquid crystal molecules and the light absorption axis of the optical compensation film so as to achieve good display effect.

Description

Display panels

Technical field

The present invention relates to a kind of display panels, and particularly relevant for a kind of stable twisted nematic (TwistedNematic Mode, TN-Mode) display panels.

Background technology

Liquid crystal; Be most important element in the LCD; Employed liquid crystal material in the panel can influence optical property because of the fundamental characteristics difference of the liquid crystal such as optical activity (optical rotation), operating voltage and operating temperature of liquid crystal, thus liquid crystal be chosen as the primary problem in the design.Generally speaking; At stable twisted nematic (Twisted Nematic Mode; TN-Mode) in the display panels, liquid crystal material is main with left-handed liquid crystal on selecting, but left-handed liquid crystal has its some optical confinement; Can't satisfy client's specified gray-scale inversion generation angle simultaneously and avoid the direction of panel bright dipping to sunglasses absorption axes; Therefore for the optical demands in response to client's diversification, traditional left-handed liquid crystal has not applied and has used, so the dextrorotation liquid crystal is also brought into use in the TN-mode display panels.

In addition, the optical compensation films on the display panels (optical compensation film) is influenced by the alignment film of upper and lower and the liquid crystal molecule of not standing completely designs.Yet; The traditional optical compensate film all designs to left-handed liquid crystal on being provided with; Be not suitable for the framework of dextrorotation liquid crystal, the center that the TN-Mode display panels showed that causes adopting the dextrorotation liquid crystal all is inferior to the TN-Mode display panels of left-handed liquid crystal to optical property such as visual angle when.On the other hand, the display panels of existing left-handed liquid crystal framework still has on optical property and improves the space, and ideal is not attained in the plan of establishment of its optical compensation films yet.

Summary of the invention

The present invention proposes a kind of design proposal of liquid crystal alignment collocation optical compensation films; Applicable to the display panels that adopts left-handed liquid crystal or dextrorotation liquid crystal as display medium; The relativeness of the light absorption axle of torsion angle and the optical compensation films through the adjustment liquid crystal molecule wherein; The center of display surface that promotes display panels is to optical property such as visual angle when, to reach good display effect.

For specifically describing content of the present invention; At this a kind of display panels is proposed; It has a display surface, and display panels comprises an active component array base board, a subtend substrate, a liquid crystal layer, one first alignment film, one second alignment film, one first optical compensation films and one second optical compensation films.Subtend substrate and active component array base board are oppositely arranged.Liquid crystal layer is disposed between active component array base board and the subtend substrate, and liquid crystal layer comprises a plurality of liquid crystal molecules.First alignment film is disposed between active component array base board and the liquid crystal layer, and first alignment film provides one first alignment direction to liquid crystal molecule.Second alignment film is disposed between subtend substrate and the liquid crystal layer, and second alignment film provides one second alignment direction to liquid crystal molecule.The projection of first alignment direction on display surface is after the Δ θ along rotating an angle clockwise, can be reverse with second alignment direction, and 90 °≤Δ θ≤100 °.First optical compensation films and first alignment film lay respectively at the relative both sides of active component array base board, and first optical compensation films has one first light absorption axle.Second optical compensation films and second alignment film lay respectively at the relative both sides of subtend substrate, and second optical compensation films has one second light absorption axle.At this, definition counterclockwise be on the occasion of, by the X axle forward on the display surface be rotated counterclockwise to the anglec of rotation of the projection of first alignment direction on display surface be θ _A, by X axle forward be rotated counterclockwise to the anglec of rotation of first projection of light absorption axle on display surface be θ _AE, and Δ θ _A=θ _A-θ _AEIn addition, by X axle forward be rotated counterclockwise to the anglec of rotation of the reverse projection on display surface of second alignment direction be θ _C, by X axle forward be rotated counterclockwise to the anglec of rotation of second projection of light absorption axle on display surface be θ _CE, and Δ θ _C=θ _C-θ _CEThen, wherein: Δ θ at least _ASatisfy 0.5 °≤Δ θ _A≤3 °, or Δ θ at least _CSatisfy-3 °≤Δ θ _C≤-0.5 °.

The present invention more proposes a kind of display panels; It has a display surface, and display panels comprises an active component array base board, a subtend substrate, a liquid crystal layer, one first alignment film, one second alignment film, one first optical compensation films and one second optical compensation films.Subtend substrate and active component array base board are oppositely arranged.Liquid crystal layer is disposed between active component array base board and the subtend substrate, and liquid crystal layer comprises a plurality of liquid crystal molecules.First alignment film is disposed between active component array base board and the liquid crystal layer, and first alignment film provides one first alignment direction to liquid crystal molecule.Second alignment film is disposed between subtend substrate and the liquid crystal layer, and second alignment film provides one second alignment direction to liquid crystal molecule.First alignment direction is rotated along counterclockwise after an angle is Δ θ in the projection on the display surface, can be reverse with second alignment direction, and 90 °≤Δ θ≤100 °.First optical compensation films and first alignment film lay respectively at the relative both sides of active component array base board, and first optical compensation films has one first light absorption axle.Second optical compensation films and second alignment film lay respectively at the relative both sides of subtend substrate, and second optical compensation films has one second light absorption axle.At this, definition counterclockwise be on the occasion of, by the X axle forward on the display surface be rotated counterclockwise to the anglec of rotation of the projection of first alignment direction on display surface be θ _A, by X axle forward be rotated counterclockwise to the anglec of rotation of first projection of light absorption axle on display surface be θ _AE, and Δ θ _A=θ _A-θ _AEIn addition, by X axle forward be rotated counterclockwise to the anglec of rotation of the reverse projection on display surface of second alignment direction be θ _C, by X axle forward be rotated counterclockwise to the anglec of rotation of second projection of light absorption axle on display surface be θ _CE, and Δ θ _C=θ _C-θ _CEThen, Δ θ _AWith Δ θ _CAt least one satisfies following condition wherein: Δ θ at least _ASatisfy-3 °≤Δ θ _A＜0 ° or, or Δ θ at least _CSatisfy 0 °＜Δ θ _C≤3 °.

In one embodiment, said display panels more comprises one first polaroid and one second polaroid.First polaroid and first alignment film lay respectively at the relative both sides of active component array base board.Second polaroid and second alignment film lay respectively at the relative both sides of subtend substrate.

In one embodiment, said first optical compensation films has more the polarisation function.

In one embodiment, said second optical compensation films has more the polarisation function.

For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs. elaborates as follows.

Description of drawings

Fig. 1 illustrates the framework of a kind of TN-mode display panels of the application's proposition;

Fig. 2 A and 2B illustrate a kind of left-handed liquid crystal framework and a kind of dextrorotation liquid crystal framework respectively;

Fig. 3 A illustrates the framework of known a kind of left-handed liquid crystal collocation optical compensation films;

Fig. 3 B illustrates the framework of known a kind of dextrorotation liquid crystal collocation optical compensation films;

Fig. 4 illustrates the framework of a kind of dextrorotation liquid crystal collocation optical compensation films that proposes according to the application;

Fig. 5 illustrates the technical scheme that practical application design concept of the present invention improves the framework of dextrorotation liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof;

Fig. 6 illustrates the technical scheme that practical application design concept of the present invention improves the framework of left-handed liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof;

The technical scheme that the design concept that Fig. 7 and 8 illustrates other two kinds of practical application the application is respectively improved the framework of dextrorotation liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof;

The technical scheme that the design concept that Fig. 9 and 10 illustrates other two kinds of practical application the application is respectively improved the framework of left-handed liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof.

Wherein, Reference numeral

100: display panels 110: active component array base board

120: subtend substrate 130: liquid crystal layer

150: the second alignment films of 140: the first alignment films

170: the second optical compensation films of 160: the first optical compensation films

TFT: the alignment direction CF of active component array base board side: the alignment direction of subtend substrate-side

Δ θ _Twist: the liquid crystal torsion angle

θ _A: the alignment direction of active component array base board side and the folded angle of X axle forward

θ _AE: the light absorption axle of the optical compensation films of active component array base board side and the folded angle of X axle forward

θ _C: the reverse and folded angle of X axle forward of the alignment direction of subtend substrate-side

θ _CE: be the light absorption axle and the folded angle of X axle forward of the optical compensation films of subtend substrate-side

Δ θ _A: the folded angle of light absorption axle of the alignment direction of active component array base board side and corresponding optical compensation films

Δ θ _C: the folded angle of light absorption axle of the reverse and corresponding optical compensation films of the alignment direction of subtend substrate-side

Δ θ _Ewv: the angle of the light absorption axle of two optical compensation films

Embodiment

The application provides new design specifications its optical property that gains to the TN-mode display panels.Mainly to be the torsion angle (Twist angle) that utilize to change liquid crystal molecule promote left-handed with the relativeness of optical compensation films (opticalcompensation film) or center that dextrorotation liquid crystal framework is showed to contrast with great visual angle when.

Fig. 1 illustrates the framework of a kind of TN-mode display panels of the application's proposition.Display panels 100 comprises active component array base board 110, subtend substrate 120, liquid crystal layer 130, first alignment film 140, second alignment film 150, first optical compensation films 160 and second optical compensation films 170.Subtend substrate 120 is oppositely arranged with active component array base board 110.Liquid crystal layer 130 is disposed between active component array base board 110 and the subtend substrate 120, and liquid crystal layer 130 comprises a plurality of liquid crystal molecules 132.First alignment film 140 is disposed between active component array base board 110 and the liquid crystal layer 130.Second alignment film 150 is disposed between subtend substrate 120 and the liquid crystal layer 130.First optical compensation films 160 and first alignment film 140 lay respectively at the relative both sides of active component array base board 110.That is to say that first alignment film 140 is positioned on the inside surface of active component array base board 110, and first optical compensation films 160 is positioned on the outside surface of active component array base board 110.Second optical compensation films 170 and second alignment film 150 lay respectively at the relative both sides of subtend substrate 120.That is to say that second alignment film 150 is positioned on the inside surface of subtend substrate 120, and second optical compensation films 170 is positioned on the outside surface of subtend substrate 120.Active component array base board 110 for example is a thin-film transistor array base-plate, and subtend substrate 120 can comprise chromatic filter layer and common electrode layer.Certainly; Active component array base board 110 also can be colored filter (color filter on array on active layers that integral color filter is made; COA) thin-film transistor array base-plate or active layers be (array on color filter on colored filter; Thin-film transistor array base-plate AOC) or black matrix" (black matrix, BM) be integrated on the thin-film transistor array base-plate (black matrix onarray, BOA); At this moment, subtend substrate 120 possibly comprise common electrode (not illustrating).In addition, liquid crystal layer 130 possibly be left-handed liquid crystal or dextrorotation liquid crystal along with the setting of first alignment film and second alignment film 150.

The definition of left-handed liquid crystal and dextrorotation liquid crystal at first, is described.Attached drawings represent all to adopt 120 groups of active component array base board 110 and subtend substrates upright after, to overlook (Top view) direction observations, i.e. the observations from subtend substrate 120 toward active component array base board 110 directions.

Left-handed liquid crystal framework shown in Fig. 2 A; The drawing surface is regarded as the display surface of display panels 100; After 120 groups of active component array base board 110 and subtend substrates stand; Rotate toward the clockwise direction from the alignment direction (the graphic TFT that is denoted as) of first alignment film 140 of active component array base board 110 sides, run into alignment direction (the graphic CF of being denoted as) reverse of second alignment film 150 of subtend substrate 120 sides earlier, then be called left-handed liquid crystal framework.At this, definition anglec of rotation Δ θ _TwistBe torsion angle, and 90 °≤Δ θ _Twist≤100 °.

In addition; Dextrorotation liquid crystal framework shown in Fig. 2 B; Equally the drawing surface is regarded as the display surface of display panels 100, after 120 groups of active component array base board 110 and subtend substrates are upright, from the alignment direction of first alignment film 140 of active component array base board 110 sides towards rotation counterclockwise; Run into alignment direction reverse of second alignment film 150 of subtend substrate 120 sides earlier, then be called dextrorotation liquid crystal framework.At this, definition anglec of rotation Δ θ _TwistBe torsion angle, and 90 °≤Δ θ _Twist≤100 °.

Hereinafter is explained the application's design earlier with dextrorotation liquid crystal framework.

Fig. 3 A illustrates the framework of known a kind of left-handed liquid crystal collocation optical compensation films.Fig. 3 B illustrates the framework of known a kind of dextrorotation liquid crystal collocation optical compensation films.Fig. 4 illustrates the framework of a kind of dextrorotation liquid crystal collocation optical compensation films that proposes according to the application.Fig. 3 A, Fig. 3 B all are to adopt identical optical compensation films with the framework of Fig. 4.At this, the drawing surface is regarded as the display surface of display panels, and the forward of the X axle on the definition display surface is 0 degree, then θ _AAlignment direction (accompanying drawing is denoted as TFT) and folded angle, the θ of X axle forward for the active component array base board side _AELight absorption axle (the graphic TFT-EWV that is denoted as) and folded angle, the θ of X axle forward for the optical compensation films of active component array base board side _CReverse and folded angle, the θ of X axle forward for the alignment direction (the graphic CF that is denoted as) of subtend substrate-side _CELight absorption axle (the graphic CF-EWV that is denoted as) and the folded angle of X axle forward for the optical compensation films of subtend substrate-side.In view of the above, the alignment direction of definable active component array base board side is Δ θ with the folded angle of light absorption axle of corresponding optical compensation films _A, and Δ θ _A=θ _A-θ _AEIn addition, the reverse folded angle of light absorption axle with corresponding optical compensation films of the alignment direction of definable subtend substrate-side is Δ θ _C, and Δ θ _C=θ _C-θ _CE

The framework of the existing dextrorotation liquid crystal collocation optical compensation films shown in Fig. 3 B, its optical appearance is not good.Reason is; Optical compensation films is influenced by the alignment film of liquid crystal layer upper and lower sides and the liquid crystal molecule of not standing erectly completely designs, its mainly be with about in two optical compensation films and liquid crystal molecule inclination angle be that the survivor bits that the disklike molecule of symmetric offset spread compensates the liquid crystal layer edge differs.The traditional optical compensate film all designs to left-handed liquid crystal, shown in Fig. 3 B, and Δ θ wherein _ABe+0.3 ° approximately (that is, positive 0.3 degree), and Δ θ _CBe-0.3 ° approximately (that is, negative 0.3 degree), with the compensating action of the discotic mesogenic of effective performance optical compensation films.Yet, when this design specifications is applied to the dextrorotation liquid crystal framework shown in Fig. 3 B, because the difference of liquid crystal torsional direction, makes the light absorption axle of optical compensation films and the relativeness generation entanglement of corresponding alignment direction, and can't obtain effective optical compensation.

Dextrorotation liquid crystal framework adjustment liquid crystal torsion angle Δ θ as shown in Figure 4 _TwistSize change the relativeness of the light absorption axle of alignment direction and optical compensation films, make optical compensation films be able to performance compensation effect.More detailed, present embodiment is with liquid crystal torsion angle Δ θ _TwistStrengthen, make its angle Δ θ greater than the light absorption axle of corresponding two optical compensation films _Ewv, or even contain Δ θ _EwvScope, so just can make optical compensation films be able to bring into play good compensation effect, with the gain optical appearance.

First embodiment-dextrorotation liquid crystal framework adjusts the alignment direction of two alignment films simultaneously

Fig. 5 illustrates the technical scheme that the aforesaid design concept of practical application improves the framework of dextrorotation liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof.As shown in Figure 5, present embodiment is with the torsion angle Δ θ of dextrorotation liquid crystal _TwistIncrease to 94 ° by 88 °, wherein adjust the alignment direction of two alignment films simultaneously, make liquid crystal torsion angle Δ θ _TwistThe angle Δ θ of containing the light absorption axle of two optical compensation films _EwvScope.In other words, through with liquid crystal torsion angle Δ θ _TwistIncrease to 94 ° by 88 °, make the Δ θ of aforementioned definitions _ABe adjusted to-1.7 ° (that is, negative 1.7 degree) by+1.3 ° (that is, positive 1.3 degree), and Δ θ _CBy-1.3 ° be adjusted to+1.7 °.Through simulation, can obtain liquid crystal torsion angle Δ θ respectively _TwistBe the correlative value of 88 ° and the display surface when being 94 °, wherein can find as liquid crystal torsion angle Δ θ _TwistWhen increasing to 94 °, all there is significant lifting in the central authorities of display surface to when contrasting with great visual angle.

In addition, following table one is further enumerated a plurality of specific liquid crystal torsion angle Δ θ t _WistAnalog result.

(table)

As above shown in the table one, the evolutionary approach that the framework to dextrorotation liquid crystal collocation optical compensation films that present embodiment proposes carries out can effectively promote the optical appearance of display panels really.Wherein, as liquid crystal torsion angle Δ θ _TwistAfter 90 °, the central authorities of display surface to the performance of visual angle when along with liquid crystal torsion angle Δ θ _TwistIncrease progressively promote, and at Δ θ _TwistSlightly descend when equaling 96.6 °.

Present embodiment is the framework that display panels proposed to TN-type, so liquid crystal torsion angle Δ θ _TwistCharacter less than 180 °.In addition, the analog result of table one on the foundation, the preferred embodiments of present embodiment:

To the framework of dextrorotation liquid crystal collocation optical compensation films ,-3 °≤Δ θ _A＜0 ° or 0 °＜Δ θ _C≤3 °.

In above-mentioned scope, the central authorities of display surface all have significant improvement to visual angle performance when compared to known framework.

Second embodiment-left-handed liquid crystal framework adjusts the alignment direction of two alignment films simultaneously

Fig. 6 illustrates the technical scheme that the aforesaid design concept of practical application improves the framework of left-handed liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof.As shown in Figure 6, present embodiment is with the torsion angle Δ θ of left-handed liquid crystal _TwistIncrease to 94 ° by 88 °, wherein adjust the alignment direction of two alignment films simultaneously, make liquid crystal torsion angle Δ θ _TwistThe angle Δ θ of containing the light absorption axle of two optical compensation films _EwvScope.In other words, through with liquid crystal torsion angle Δ θ _TwistIncrease to 94 ° by 88 °, make the Δ θ of aforementioned definitions _ABe adjusted to+2.3 ° (that is, positive 2.3 degree) by-0.7 ° (that is, negative 0.7 degree), and Δ θ _CBe adjusted to-2.3 ° by+0.7 °.Through simulation, can obtain liquid crystal torsion angle Δ θ respectively _TwistBe the correlative value of 88 ° and the display surface when being 94 °, wherein can find as liquid crystal torsion angle Δ θ _TwistWhen increasing to 94 °, all there is significant lifting in the central authorities of display surface to when contrasting with great visual angle.

In addition, following table two is further enumerated a plurality of specific liquid crystal torsion angle Δ θ _TwistAnalog result.

(table two)

As above shown in the table two, the evolutionary approach that the framework to left-handed liquid crystal collocation optical compensation films that present embodiment proposes carries out can effectively promote the optical appearance of display panels really.Wherein, as liquid crystal torsion angle Δ θ _TwistAfter 90.4 °, the central authorities of display surface to the performance of visual angle when along with liquid crystal torsion angle Δ θ _TwistIncrease progressively promote, and at Δ θ _TwistSlightly descend when equaling 95.4 °.

Present embodiment is the framework that display panels proposed to TN-type, so liquid crystal torsion angle Δ θ _TwistCharacter less than 180 ° is arranged.In addition, the analog result of table one on the foundation, the preferred embodiments of present embodiment:

The framework of left-handed liquid crystal collocation optical compensation films, 0.5 °≤Δ θ _A≤3 ° or-3 °≤Δ θ _C≤-0.5 °.

In above-mentioned scope, the central authorities of display surface all have significant improvement to visual angle performance when compared to known framework.

The 3rd embodiment-dextrorotation liquid crystal framework only adjusts one-sided alignment direction

Aforementioned first embodiment is that the alignment direction of adjusting two alignment films simultaneously changes liquid crystal torsion angle Δ θ _TwistThe alignment direction that in fact, also can only change one of them alignment film reaches same effect.

(A) the fixing alignment direction of active component array base board side, the alignment direction of adjustment subtend substrate-side:

Fig. 7 illustrates the technical scheme that the aforesaid design concept of the another kind of practical application of the application improves the framework of dextrorotation liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof.Three of following tables are enumerated a plurality of specific liquid crystal torsion angle Δ θ _TwistAnalog result.

(table three)

Please be simultaneously with reference to figure 7 and last table three, with the torsion angle Δ θ of dextrorotation liquid crystal _TwistIncrease to 92 ° and 93.3 ° by 88 °, wherein only adjust the alignment direction of subtend substrate-side, Δ θ _ABe fixed to+0.3 ° (that is, positive 0.3 degree), and Δ θ _CBecome by-2.3 ° (that is, negative 2.3 degree)+1.7 ° and+3 °, this moment Δ θ _CStill between 0 °＜Δ θ _CIn≤3 ° the scope, and central authorities still have remarkable lifting to visual angle performance when.

(B) the fixing alignment direction of subtend substrate-side, the alignment direction of adjustment active component array base board side:

Fig. 8 illustrates the technical scheme that the aforesaid design concept of another practical application of the application improves the framework of dextrorotation liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof.The following table four fundamental rules are enumerated a plurality of specific liquid crystal torsion angle Δ θ _TwistAnalog result.

(table four)

Please be simultaneously with reference to figure 8 and last table four, with the torsion angle Δ θ of dextrorotation liquid crystal _TwistIncrease to 92 ° and 93.3 ° by 88 °, wherein only adjust the alignment direction of active component array base board side, Δ θ _CBe fixed to-0.3 °, and Δ θ _ABecome-1.7 ° and-3 ° by+2.3 °, this moment Δ θ _AStill between-3 °≤Δ θ _AIn＜0 ° the scope, and central authorities still have remarkable lifting to visual angle performance when.

The 4th embodiment-dextrorotation liquid crystal framework only adjusts one-sided alignment direction

Aforementioned second embodiment is that the alignment direction of adjusting two alignment films simultaneously changes liquid crystal torsion angle Δ θ _TwistThe alignment direction that in fact, also can only change one of them alignment film reaches same effect.

(A) the fixing alignment direction of active component array base board side, the alignment direction of adjustment subtend substrate-side:

Fig. 9 illustrates the technical scheme that the aforesaid design concept of the another kind of practical application of the application improves the framework of left-handed liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof.Five of following tables are enumerated a plurality of specific liquid crystal torsion angle Δ θ _TwistAnalog result.

(table five)

Please be simultaneously with reference to figure 9 and last table 5, with the torsion angle Δ θ of left-handed liquid crystal _TwistIncrease to 92 ° and 92.7 ° by 88 °, wherein only adjust the alignment direction of subtend substrate-side, Δ θ _ABe fixed to+0.3 ° (that is, positive 0.3 degree), and Δ θ _CBecome-2.3 ° (that is, negative 2.3 degree) and-3 ° by+1.7 °, this moment Δ θ _CStill between-3 °≤Δ θ _CIn≤-0.5 ° the scope, and central authorities still have remarkable lifting to visual angle performance when.

(B) the fixing alignment direction of subtend substrate-side, the alignment direction of adjustment active component array base board side:

Figure 10 illustrates the technical scheme that the aforesaid design concept of another practical application of the application improves the framework of left-handed liquid crystal collocation optical compensation films and the gain situation of optical appearance thereof.Six of following tables are enumerated a plurality of specific liquid crystal torsion angle Δ θ _TwistAnalog result.

(table six)

Please be simultaneously with reference to Figure 10 and last table six, with the torsion angle Δ θ of left-handed liquid crystal _TwistIncrease to 92 ° and 92.7 ° by 88 °, wherein only adjust the alignment direction of active component array base board side, Δ θ _CBe fixed to-0.3 °, and Δ θ _ABy-1.7 ° become+2.3 ° and+3 °, this moment Δ θ _AStill between 0.5 °≤Δ θ _AIn≤3 ° the scope, and central authorities still have remarkable lifting to visual angle performance when.

In sum, the present invention designs to the framework of left-handed liquid crystal and dextrorotation liquid crystal collocation optical compensation films respectively, and wherein for the dextrorotation liquid crystal, the selection of process parameter design and compensate film angle should be observed: as Δ θ _AAnd Δ θ _CAt least one satisfies-3 °≤Δ θ _A＜0 ° or 0 °＜Δ θ _CDuring≤+ 3 ° scope, can have preferable optical appearance; For left-handed liquid crystal, the selection of process parameter design and compensate film angle should be observed: as Δ θ _AAnd at least one satisfied 0.5 °≤Δ θ of Δ θ c _A≤3 ° or-3 °≤Δ θ _CDuring≤-0.5 ° scope, can have preferable optical appearance.

Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (8)

1. a display panels has a display surface, it is characterized in that, this display panels comprises:

One active component array base board;

One subtend substrate is oppositely arranged with this active component array base board;

One liquid crystal layer is disposed between this active component array base board and this subtend substrate, and this liquid crystal layer comprises a plurality of liquid crystal molecules;

One first alignment film is disposed between this active component array base board and this liquid crystal layer, and this first alignment film provides one first alignment direction to these liquid crystal molecules;

One second alignment film; Be disposed between this subtend substrate and this liquid crystal layer; This second alignment film provides one second alignment direction to these liquid crystal molecules; Wherein the projection of this first alignment direction on this display surface is after the Δ θ along rotating an angle clockwise, can be reverse with this second alignment direction, and 90 °≤Δ θ≤100 °;

One first optical compensation films, this first optical compensation films and this first alignment film lay respectively at the relative both sides of this active component array base board, and this first optical compensation films has one first light absorption axle; And

One second optical compensation films, this second optical compensation films and this second alignment film lay respectively at the relative both sides of this subtend substrate, and this second optical compensation films has one second light absorption axle, definition:

Counterclockwise be on the occasion of, by the X axle forward on this display surface be rotated counterclockwise to the anglec of rotation of this projection of first alignment direction on this display surface be θ _A, by this X axle forward be rotated counterclockwise to the anglec of rotation of this projection of first light absorption axle on this display surface be θ _AE, and Δ θ _A= _{θ A}-θ _AE,

By this X axle forward be rotated counterclockwise to the anglec of rotation of the reverse projection on this display surface of this second alignment direction be θ _C, by this X axle forward be rotated counterclockwise to the anglec of rotation of this projection of second light absorption axle on this display surface be θ _CE, and Δ θ _C=θ _C-θ _CE, wherein:

At least Δ θ _ASatisfy 0.5 °≤Δ θ _A≤3 ° or Δ θ at least _CSatisfy-3 °≤Δ θ _C≤-0.5 °.

2. display panels according to claim 1 is characterized in that, more comprises:

One first polaroid, this first polaroid and this first alignment film lay respectively at the relative both sides of this active component array base board; And

One second polaroid, this second polaroid and this second alignment film lay respectively at the relative both sides of this subtend substrate.

3. display panels according to claim 1 is characterized in that, this first optical compensation films has more the polarisation function.

4. display panels according to claim 1 is characterized in that, this second optical compensation films has more the polarisation function.

5. a display panels has a display surface, it is characterized in that, this display panels comprises:

One active component array base board;

One subtend substrate is oppositely arranged with this active component array base board;

One liquid crystal layer is disposed between this active component array base board and this subtend substrate, and this liquid crystal layer comprises a plurality of liquid crystal molecules;

One first alignment film is disposed between this active component array base board and this liquid crystal layer, and this first alignment film provides one first alignment direction to these liquid crystal molecules;

One second alignment film; Be disposed between this subtend substrate and this liquid crystal layer; This second alignment film provides one second alignment direction to these liquid crystal molecules; Wherein this first alignment direction is rotated along counterclockwise after an angle is Δ θ in the projection on this display surface, can be reverse with this second alignment direction, and 90 °≤Δ θ≤100 °;

One first optical compensation films, this first optical compensation films and this first alignment film lay respectively at the relative both sides of this active component array base board, and this first optical compensation films has one first light absorption axle; And

One second optical compensation films, this second optical compensation films and this second alignment film lay respectively at the relative both sides of this subtend substrate, and this second optical compensation films has one second light absorption axle, definition:

Counterclockwise be on the occasion of, by the X axle forward on this display surface be rotated counterclockwise to the anglec of rotation of this projection of first alignment direction on this display surface be θ _A, by this X axle forward be rotated counterclockwise to the anglec of rotation of this projection of first light absorption axle on this display surface be θ _AE, and Δ θ _A=θ _A-θ _AE,

By this X axle forward be rotated counterclockwise to the anglec of rotation of the reverse projection on this display surface of this second alignment direction be θ _C, by this X axle forward be rotated counterclockwise to the anglec of rotation of this projection of second light absorption axle on this display surface be θ _CE, and Δ θ _C=θ _C-θ _CE, wherein:

At least Δ θ _ASatisfy-3 °≤Δ θ _A＜0 °, or Δ θ at least _CSatisfy 0 °＜Δ θ _C≤3 °.

6. display panels according to claim 5 is characterized in that, more comprises:

One first polaroid, this first polaroid and this first alignment film lay respectively at the relative both sides of this active component array base board; And

One second polaroid, this second polaroid and this second alignment film lay respectively at the relative both sides of this subtend substrate.

7. display panels according to claim 5 is characterized in that, this first optical compensation films has more the polarisation function.

8. display panels according to claim 5 is characterized in that, this second optical compensation films has more the polarisation function.

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