CN104317104A - Compensation frame of liquid crystal display panel and liquid crystal display device - Google Patents
Compensation frame of liquid crystal display panel and liquid crystal display device Download PDFInfo
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- CN104317104A CN104317104A CN201410596975.5A CN201410596975A CN104317104A CN 104317104 A CN104317104 A CN 104317104A CN 201410596975 A CN201410596975 A CN 201410596975A CN 104317104 A CN104317104 A CN 104317104A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a compensati0n frame of a liquid crystal display panel. The compensation frame comprises a liquid crystal panel, a first compensation film and a second compensation film. The compensation films are arranged on two sides of the liquid crystal panel. The liquid crystal panel is provided with a liquid crystal layer comprising a plurality of liquid crystal molecules. Aeolotropy of refractive index of the liquid crystal layer is Delta n, thickness of the liquid crystal layer is d, and pretilt angles of the liquid crystal molecules are Theta. The first compensation film is a biaxial compensation film with in-plane compensation value of Ro1 and thickness compensation value of Rth1. The second compensation film is a homotaxial compensation film with thickness compensation film of Rth2. To be specific, 324.3nm</=Delta n*d<=342.7nm; 85 degrees</=Theta<90 degrees; 55nm</=Ro1</=78nm; 208nm</=Rth1</=293nm; Y1nm</=Rth2</=Y2nm; Y1=0.001897*(Rth1) 2-2.01*Rth1+438.7; Y2=-0.005756*(Rth1) 2+1.654*Rth1+55.7. The invention further discloses a liquid crystal display device with the compensation frame.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of liquid crystal panel and compensate framework and liquid crystal indicator.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD) is the display device of planar ultra-thin, and it is made up of the colour of some or monochrome pixels, is positioned over light source or reflecting surface front.Liquid crystal display power consumption is very low, and has high image quality, little, the lightweight feature of volume, and therefore extremely everybody favors, and becomes the main flow of display.Current liquid crystal display is based on thin film transistor (TFT) (Thin Film Transistor, TFT) liquid crystal display.
Along with the area of TFT-LCD is increasing, its viewing angle constantly increases, and the contrast of picture constantly reduces, and the sharpness of picture declines, and this is that the birefraction of liquid crystal molecule in liquid crystal layer changes the result changed with viewing angle.For common LCDs, when watching common LCDs from certain angle, the loss (dimmed) that its brightness is rapid and variable color will be found.Traditional liquid crystal display only has the visual angle of 90 degree usually, namely each 45 degree of left/right both sides.The wire liquid crystal making display panels is a kind of material with birefraction Δ n, when light is by after liquid crystal molecule, ordinary ray (ordinary ray) and special ray (extraordinary ray) twice light can be divided into, if light is oblique incidence liquid crystal molecule, just twice refracted ray can be produced, the birefraction Δ n=ne-no of light, ne represents the refractive index of liquid crystal molecule to ordinary ray, and no represents the refractive index of liquid crystal molecule to special ray.Therefore when light is after the liquid crystal of living folded by upper and lower two sheet glass, light will produce the phenomenon of phase delay (phase retardation).The light characteristic of liquid crystal cell is used phase delay delta n × d to weigh usually, and also referred to as optical path difference, Δ n is birefraction, and d is the thickness of liquid crystal cell, and under liquid crystal cell different visual angles, phase delay is not both the origin that it produces viewing angle problem.The phase delay of good optical compensation films can cancel each other with the phase delay of wire liquid crystal, just can the visible angle of augmentation liquid crystal panel.
The compensation principle of optical compensation films is generally revised by the phase differential that liquid crystal produces in different visual angles, allows the birefringence of liquid crystal molecule obtain symmetric compensation.Employing optical compensation films compensates, and effectively can reduce the light leak of dark-state picture, can increase substantially the contrast of picture in certain visual angle.Optical compensation films is distinguished from its functional purpose, and the simple phase difference film of phase place, Chromatically compensated film and the visual angle of changing can be divided into expand film etc.Use optical compensation films can reduce light leak amount during liquid crystal display dark-state, and significantly can improve contrast, the colourity of image and overcome part gray-scale Inversion Problem in certain visual angle.The major parameter weighing optical compensation membrane property comprises offset Ro in face in the in-plane direction, and thickness compensation value Rth in a thickness direction, refractive index N, and film thickness D, meet following relational expression:
Ro＝(Nx-Ny)×D；
Rth＝[(Nx+Ny)/2-Nz]×D；
Wherein, Nx (has the axle of largest refractive index along slow axis in membrane plane, namely light has the direction of vibration of slower propagation rate) refractive index, Ny (has the axle of minimum refractive index along fast axle in membrane plane, namely light wave has the direction of vibration of very fast propagation rate, perpendicular to Nx) refractive index, Nz is the refractive index (perpendicular to Nx and Ny) in membrane plane direction.
For different liquid crystal display mode, also namely different liquid crystal cell types, the optical compensation films of use is also different, and Ro and Rth value also needs to be adjusted to suitable value.The optical compensation films that existing large-size liquid crystal television uses is for VA (vertical orientation) display mode mostly, the N-TAC having Konica (Konica) company of early application, development formed the Zeonor of OPTES (Ao Pushi) company afterwards, the F-TAC series of Fujitsu, the X-plate etc. of day east electrician.
Larger for different liquid crystal light path differences, needs to design different optical compensation patterns.For the liquid crystal panel that optical path difference is within the scope of 324.3 ~ 342.7nm, consult Fig. 1 and Fig. 2, Fig. 1 be through existing a kind of compensate framework compensate after the luminance contour distribution plan such as the full visual angle of dark-state of liquid crystal panel; Fig. 2 is the contrast contoured profile figure such as full visual angle of the liquid crystal panel after aforementioned single-layer double-shaft compensation framework compensates.As can be seen from Fig. 1 and 2, existing compensation framework is adopted to compensate, in phi=20 ~ 40, horizontal view angle °, phi=140 ~ 160 °, phi=200 ~ 220 ° and phi=310 ~ 330 ° position light leak serious, the serious visual angle of dark-state light leak is closer to horizontal view angle, and the contrast at these visual angles and sharpness on the low side, and the region that the relative position of general spectators and TV determines close to horizontal view angle is more easily easily seen, so the contrast at these visual angles and sharpness having the greatest impact to viewing effect.
Summary of the invention
In view of the deficiency that prior art exists, the invention provides a kind of liquid crystal panel and compensate framework, is the liquid crystal panel within the scope of 324.3 ~ 342.7nm for optical path difference, by arranging offset, effectively can reduce the dark-state leakage problem of liquid crystal panel, increase contrast with great visual angle and sharpness.
To achieve these goals, present invention employs following technical scheme:
A kind of liquid crystal panel compensates framework, wherein, comprises liquid crystal panel and is arranged at the first compensate film and second compensate film of described liquid crystal panel both sides respectively; Described liquid crystal panel is provided with the liquid crystal layer comprising multiple liquid crystal molecule, and the refractive anisotrop of described liquid crystal layer is Δ n, and thickness is d, and the tilt angle of liquid crystal molecule is θ; Described first compensate film is biaxial compensation film, and in its face, offset is Ro1, and thickness compensation value is Rth1; Described second compensate film is uniaxial compensation film, and its thickness compensation value is Rth2, wherein:
324.3nm≤Δn×d≤342.7nm；
85°≤θ＜90°；
55nm≤Ro1≤78nm；
208nm≤Rth1≤293nm；
Y1nm≤Rth2≤Y2nm；
Y1＝0.001897×(Rth1)
2-2.01×Rth1+438.7；
Y2＝-0.005756×(Rth1)
2+1.654×Rth1+55.7。
Preferably, 58nm≤Ro1≤71nm, 220nm≤Rth1≤269nm.
Preferably, 44nm≤Rth2≤139nm.
Preferably, described first compensate film is also disposed with the first light polarizing film and the first diaphragm; Described second compensate film is also disposed with the second light polarizing film and the second diaphragm.
Preferably, the material of described first light polarizing film and the second light polarizing film is polyvinyl alcohol (PVA).
Preferably, the material of described first diaphragm and the second diaphragm is Triafol T.
Preferably, the angle of the extinction axle of described first light polarizing film and the slow axis of described first compensate film is 90 °; The angle of the extinction axle of described second light polarizing film and the slow axis of described second compensate film is 90 °.
Preferably, the first bonding coat is also provided with between described liquid crystal panel and described first compensate film; The second bonding coat is also provided with between described liquid crystal panel and described second compensate film; The material of described first bonding coat and the second bonding coat is pressure-sensitive adhesive.
Preferably, described liquid crystal panel is the liquid crystal panel of vertical alignment mode.
Another aspect of the present invention is to provide a kind of liquid crystal indicator, comprise liquid crystal panel and backlight module, described liquid crystal panel and described backlight module are oppositely arranged, described backlight module provides display light source to described liquid crystal panel, to make described liquid crystal panel show image, wherein, described liquid crystal panel adopts the liquid crystal panel compensating framework as above.
Compared to prior art, in the present invention, for the liquid crystal panel that optical path difference is within the scope of 324.3 ~ 342.7nm, by arranging the offset of double-deck compensate film, effectively can reduce the dark-state leakage problem of liquid crystal panel, increase contrast with great visual angle and sharpness, promote visual range degree with great visual angle.
Accompanying drawing explanation
Fig. 1 is the luminance contour distribution plans such as the full visual angle of dark-state of existing a kind of liquid crystal panel.
Fig. 2 is the contrast contoured profile figure such as the full visual angle of liquid crystal panel as shown in Figure 1.
Fig. 3 is the graphical representation of exemplary of the liquid crystal indicator that the embodiment of the present invention provides.
Fig. 4 is the graphical representation of exemplary of the liquid crystal panel that the embodiment of the present invention provides.
Fig. 5 is that the dark-state light leak of the liquid crystal indicator that provides of the embodiment of the present invention when liquid crystal light path difference is 324.3nm is with offset changing trend diagram.
Fig. 6 is that the dark-state light leak of the liquid crystal indicator that provides of the embodiment of the present invention when liquid crystal light path difference is 333.6nm is with offset changing trend diagram.
Fig. 7 is that the dark-state light leak of the liquid crystal indicator that provides of the embodiment of the present invention when liquid crystal light path difference is 342.7nm is with offset changing trend diagram.
Fig. 8 is the luminance contour distribution plan such as the full visual angle of dark-state of the liquid crystal panel after compensating in a specific embodiment.
Fig. 9 is the contrast contoured profile figure such as the full visual angle of liquid crystal panel as shown in Figure 7.
Figure 10 is the luminance contour distribution plan such as the full visual angle of dark-state of the liquid crystal panel after compensating in another specific embodiment.
Figure 11 is the contrast contoured profile figure such as the full visual angle of liquid crystal panel as shown in Figure 10.
Figure 12 is the luminance contour distribution plan such as the full visual angle of dark-state of the liquid crystal panel after compensating in another specific embodiment.
Figure 13 is the contrast contoured profile figure such as the full visual angle of liquid crystal panel as shown in figure 12.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, by embodiment, the present invention will be further described.
As shown in Figure 3, the liquid crystal indicator that the present embodiment provides, comprise liquid crystal panel 100 and backlight module 200, described liquid crystal panel 100 is oppositely arranged with described backlight module 200, described backlight module 200 provides display light source to described liquid crystal panel 100, to make described liquid crystal panel 100 show image, wherein, the liquid crystal panel that compensates for have employed the compensation framework with double-deck compensate film of described liquid crystal panel 100.
Particularly, above-mentioned liquid crystal panel compensates framework as shown in Figure 4, and this liquid crystal panel compensates framework and comprises liquid crystal panel 10 and be arranged at the first compensate film 11 and the second compensate film 12 of described liquid crystal panel 10 both sides respectively.First compensate film 11 is also disposed with the first light polarizing film 13 and the first diaphragm 15; Second compensate film 12 is also disposed with the second light polarizing film 14 and the second diaphragm 16.The first bonding coat 17 is also provided with between liquid crystal panel 10 and described first compensate film 11; The second bonding coat 18 is also provided with between described liquid crystal panel 10 and described second compensate film 12.Wherein, liquid crystal panel 10 is the liquid crystal cell (Vertical Alignment Cell, VA Cell) of vertical alignment mode; The material of the first light polarizing film 13 and the second light polarizing film 14 is polyvinyl alcohol (PVA) (Polyvinyl alcohol, PVA), the angle of the extinction axle of the first light polarizing film 13 and the slow axis of the first compensate film 11 is set to 90 °, and the angle of the extinction axle of the second light polarizing film 14 and the slow axis of the second compensate film 12 is set to 90 °; The material of the first diaphragm 15 and the second diaphragm 16 is Triafol T (Triacetyl Cellulose; TAC); TAC diaphragm 15,16 be mainly used for protection PVA light polarizing film 13,14; to promote the mechanical property of PVA light polarizing film 13,14; prevent PVA light polarizing film 13,14 from bouncing back; the material of the first bonding coat 17 and the second bonding coat 18 is pressure-sensitive adhesive (pressure sensitive adhesive, PSA).Liquid crystal panel 10 is provided with the liquid crystal layer comprising multiple liquid crystal molecule, and the refractive anisotrop of liquid crystal layer is Δ n, and thickness is d, and the tilt angle (Pritilt angle) of liquid crystal molecule is θ.In above compensation framework, the first compensate film 11 is biaxial compensation film, and in its face, offset adopts Ro1 to represent, thickness compensation value adopts Rth1 to represent, the second compensate film 12 is uniaxial compensation film, and its thickness compensation value adopts Rth2 to represent.
In above framework, its objective is that for optical path difference be liquid crystal panel within the scope of 324.3 ~ 342.7nm, by reasonably arranging the offset of the first compensate film 11 and the second compensate film 12, reach the dark-state leakage problem effectively reducing liquid crystal panel, increase contrast with great visual angle and the object of sharpness.
In the process of simulation, carry out following setting:
One, liquid crystal layer setting:
1, pretilt theta is 85 °≤θ < 90 °;
2, four quadrant liquid crystal inclination angles are respectively 45 °, 135 °, 225 ° and 315 °;
3, optical path difference Δ n × d is 342.8nm≤Δ n × d≤361.4nm.
Two, backlight setting:
1, light source: Lan Guang – yttrium aluminum garnet light emitting diode (Blue-YAG LED) spectrum;
2, light source central brightness is defined as 100 nits (nit);
3, distribution of light sources is lambertian distribution (Lambert ' s distribution).
Consulting Fig. 5-7, Fig. 5 is that the liquid crystal indicator of the present embodiment is 324.3nm in liquid crystal light path difference, and dark-state light leak when pretilt theta is 89 ° is with offset changing trend diagram; Fig. 6 is that the liquid crystal indicator of the present embodiment is 333.6nm in liquid crystal light path difference, and dark-state light leak when pretilt theta is 89 ° is with offset changing trend diagram; Fig. 7 is that the liquid crystal indicator of the present embodiment is 342.7nm in liquid crystal light path difference, and dark-state light leak when pretilt theta is 89 ° is with offset changing trend diagram.Therefore, according to identical mode, different offset of arranging in pairs or groups under different tilt angles is simulated, can obtain at 324.3nm≤Δ n × d≤342.7nm, in the scope of 85 °≤θ < 90 °, when dark-state light leak is less than 0.2nit, the scope of the corresponding offset of the first compensate film 11 and the second compensate film 12 is respectively: 55nm≤Ro1≤78nm; 208nm≤Rth1≤293nm; Y1nm≤Rth2≤Y2nm; Wherein:
Y1＝0.001897×(Rth1)
2-2.01×Rth1+438.7；
Y2＝-0.005756×(Rth1)
2+1.654×Rth1+55.7。
Due to offset Ro, Rth of compensate film, refractive index N and thickness D has following relation:
Ro＝(Nx-Ny)×D；
Rth＝[(Nx+Ny)/2-Nz]×D；
For uniaxial compensation film, Nx=Ny, i.e. Ro=0.
Therefore offset can be changed by following three kinds of methods:
1, on the constant basis of the refractive index N of compensate film, change thickness D and change offset;
2, on the constant basis of the thickness D of compensate film, change refractive index N and change offset;
3, on the basis of offset scope ensureing compensate film, change thickness D and refractive index N simultaneously and change offset.
Select some concrete offsets below and test corresponding compensation result, illustrating the technique effect acquired by technical scheme of the present invention further.
Consult Fig. 8 and Fig. 9, Fig. 8 is the luminance contour distribution plan such as the full visual angle of dark-state of the liquid crystal panel after compensating in a specific embodiment, and Fig. 9 is the contrast contoured profile figure such as the full visual angle of liquid crystal panel after compensating in this specific embodiment.Fig. 8 and Fig. 9 imposes a condition as optical path difference Δ n × d=324.3nm, pretilt theta=89 °, Ro1=71nm, Rth1=269nm, Rth2=44nm.The maximum dark-state light leak value measured is 0.1nit.Comparison diagram 8 and Fig. 1, can observe directly, and the liquid crystal panel after the compensation framework of the present embodiment compensates, its dark-state light leak is well below the dark-state light leak of existing liquid crystal panel.Comparison diagram 9 and Fig. 2, can observe directly, the liquid crystal panel after the compensation framework of the present embodiment compensates, and its full viewing angle contrast's degree distribution is also better than full viewing angle contrast's degree distribution of available liquid crystal panel.
Consult Figure 10 and Figure 11, Figure 10 is the luminance contour distribution plan such as the full visual angle of dark-state of the liquid crystal panel after compensating in a specific embodiment, and Figure 11 is the contrast contoured profile figure such as the full visual angle of liquid crystal panel after compensating in this specific embodiment.Figure 10 and Figure 11 imposes a condition as optical path difference Δ n × d=333.6nm, pretilt theta=89 °, Ro1=65nm, Rth1=244nm, Rth2=95nm.The maximum dark-state light leak value measured is 0.14nit.Contrast Figure 10 and Fig. 1, can observe directly, and the liquid crystal panel after the compensation framework of the present embodiment compensates, its dark-state light leak is well below the dark-state light leak of existing liquid crystal panel.Contrast Figure 11 and Fig. 2, can observe directly, the liquid crystal panel after the compensation framework of the present embodiment compensates, and its full viewing angle contrast's degree distribution is also better than full viewing angle contrast's degree distribution of existing liquid crystal panel.
Consult Figure 12 and Figure 13, Figure 12 is the luminance contour distribution plan such as the full visual angle of dark-state of the liquid crystal panel after compensating in a specific embodiment, and Figure 13 is the contrast contoured profile figure such as the full visual angle of liquid crystal panel after compensating in this specific embodiment.Figure 12 and Figure 13 imposes a condition as optical path difference Δ n × d=342.7nm, pretilt theta=89 °, Ro1=58nm, Rth1=220nm, Rth2=139nm.The maximum dark-state light leak value measured is 0.19nit.Contrast Figure 12 and Fig. 1, can observe directly, and the liquid crystal panel after the compensation framework of the present embodiment compensates, its dark-state light leak is well below the dark-state light leak of existing liquid crystal panel.Contrast Figure 13 and Fig. 2, can observe directly, the liquid crystal panel after the compensation framework of the present embodiment compensates, and its full viewing angle contrast's degree distribution is also better than full viewing angle contrast's degree distribution of existing liquid crystal panel.
In 3 above specific embodiments, optical path difference Δ n × d wherein, pretilt theta, with, the concrete value of Ro1, Rth1, Ro2 and Rth2, are only be described as an example.Through facts have proved, when the value of these parameters is in following scope, that is: 55nm≤Ro1≤78nm; 208nm≤Rth1≤293nm; Y1nm≤Rth2≤Y2nm; Y1=0.001897 × (Rth1)
2-2.01 × Rth1+438.7; Y2=-0.005756 × (Rth1)
2+ 1.654 × Rth1+55.7, can reach the technique effect identical or approximate with above-mentioned object lesson.
In sum, in the present invention, for the liquid crystal panel of lower optical path difference, by arranging the offset of double-deck biaxial compensation film, effectively can reduce the dark-state leakage problem of liquid crystal panel, increase contrast with great visual angle and sharpness, promote visual range degree with great visual angle.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
Claims (10)
1. liquid crystal panel compensates a framework, it is characterized in that, comprises liquid crystal panel (10) and be arranged at the first compensate film (11) and second compensate film (12) of described liquid crystal panel (10) both sides respectively; Described liquid crystal panel (10) is provided with the liquid crystal layer comprising multiple liquid crystal molecule, and the refractive anisotrop of described liquid crystal layer is Δ n, and thickness is d, and the tilt angle of liquid crystal molecule is θ; Described first compensate film (11) is biaxial compensation film, and in its face, offset is Ro1, and thickness compensation value is Rth1; Described second compensate film (12) is uniaxial compensation film, and its thickness compensation value is Rth2, wherein:
324.3nm≤Δn×d≤342.7nm；
85°≤θ＜90°；
55nm≤Ro1≤78nm；
208nm≤Rth1≤293nm；
Y1nm≤Rth2≤Y2nm；
Y1＝0.001897×(Rth1)
2-2.01×Rth1+438.7；
Y2＝-0.005756×(Rth1)
2+1.654×Rth1+55.7。
2. liquid crystal panel according to claim 1 compensates framework, it is characterized in that, 58nm≤Ro1≤71nm, 220nm≤Rth1≤269nm.
3. liquid crystal panel according to claim 2 compensates framework, it is characterized in that, 44nm≤Rth2≤139nm.
4. liquid crystal panel according to claim 1 compensates framework, it is characterized in that, described first compensate film (11) is also disposed with the first light polarizing film (13) and the first diaphragm (15); Described second compensate film (12) is also disposed with the second light polarizing film (14) and the second diaphragm (16).
5. liquid crystal panel according to claim 4 compensates framework, and it is characterized in that, the material of described first light polarizing film (13) and the second light polarizing film (14) is polyvinyl alcohol (PVA).
6. liquid crystal panel according to claim 4 compensates framework, and it is characterized in that, the material of described first diaphragm (15) and the second diaphragm (16) is Triafol T.
7. liquid crystal panel according to claim 4 compensates framework, and it is characterized in that, the angle of the extinction axle of described first light polarizing film (13) and the slow axis of described first compensate film (11) is 90 °; The angle of the extinction axle of described second light polarizing film (14) and the slow axis of described second compensate film (12) is 90 °.
8. liquid crystal panel according to claim 1 compensates framework, it is characterized in that, is also provided with the first bonding coat (17) between described liquid crystal panel (10) and described first compensate film (11); The second bonding coat (18) is also provided with between described liquid crystal panel (10) and described second compensate film (12); The material of described first bonding coat (17) and the second bonding coat (18) is pressure-sensitive adhesive.
9. compensate framework according to the arbitrary described liquid crystal panel of claim 1-8, it is characterized in that, the liquid crystal panel that described liquid crystal panel (10) is vertical alignment mode.
10. a liquid crystal indicator, comprise liquid crystal panel (100) and backlight module (200), described liquid crystal panel (100) and described backlight module (200) are oppositely arranged, described backlight module (200) provides display light source to described liquid crystal panel (100), to make described liquid crystal panel (100) show image, it is characterized in that, the liquid crystal panel of the compensation framework as described in described liquid crystal panel (100) employing is as arbitrary in claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410596975.5A CN104317104A (en) | 2014-10-29 | 2014-10-29 | Compensation frame of liquid crystal display panel and liquid crystal display device |
| PCT/CN2014/090332 WO2016065659A1 (en) | 2014-10-29 | 2014-11-05 | Compensation structure of liquid crystal panel and liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410596975.5A CN104317104A (en) | 2014-10-29 | 2014-10-29 | Compensation frame of liquid crystal display panel and liquid crystal display device |
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| CN201410596975.5A Pending CN104317104A (en) | 2014-10-29 | 2014-10-29 | Compensation frame of liquid crystal display panel and liquid crystal display device |
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| WO (1) | WO2016065659A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105278151A (en) * | 2015-11-11 | 2016-01-27 | 深圳市华星光电技术有限公司 | Liquid crystal panel |
| CN105334672A (en) * | 2015-12-08 | 2016-02-17 | 深圳市华星光电技术有限公司 | Liquid crystal display panel compensation structure and optical compensation method thereof |
| CN105334670A (en) * | 2015-12-08 | 2016-02-17 | 深圳市华星光电技术有限公司 | Liquid crystal display panel compensation structure and optical compensation method thereof |
| CN105334671A (en) * | 2015-12-08 | 2016-02-17 | 深圳市华星光电技术有限公司 | Liquid crystal display panel compensation structure and optical compensation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000122060A (en) * | 1998-08-11 | 2000-04-28 | Sharp Corp | Reflection type liquid crystal display device |
| US20090322997A1 (en) * | 2008-06-25 | 2009-12-31 | Fujifilm Corporation | Liquid crystal display device |
| CN102798923A (en) * | 2012-08-23 | 2012-11-28 | 深圳市华星光电技术有限公司 | Optical compensation structure and display device |
| CN103185988A (en) * | 2011-12-28 | 2013-07-03 | 斯坦雷电气株式会社 | Liquid crystal display device and process for producing same |
-
2014
- 2014-10-29 CN CN201410596975.5A patent/CN104317104A/en active Pending
- 2014-11-05 WO PCT/CN2014/090332 patent/WO2016065659A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000122060A (en) * | 1998-08-11 | 2000-04-28 | Sharp Corp | Reflection type liquid crystal display device |
| US20090322997A1 (en) * | 2008-06-25 | 2009-12-31 | Fujifilm Corporation | Liquid crystal display device |
| CN103185988A (en) * | 2011-12-28 | 2013-07-03 | 斯坦雷电气株式会社 | Liquid crystal display device and process for producing same |
| CN102798923A (en) * | 2012-08-23 | 2012-11-28 | 深圳市华星光电技术有限公司 | Optical compensation structure and display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105278151A (en) * | 2015-11-11 | 2016-01-27 | 深圳市华星光电技术有限公司 | Liquid crystal panel |
| CN105334672A (en) * | 2015-12-08 | 2016-02-17 | 深圳市华星光电技术有限公司 | Liquid crystal display panel compensation structure and optical compensation method thereof |
| CN105334670A (en) * | 2015-12-08 | 2016-02-17 | 深圳市华星光电技术有限公司 | Liquid crystal display panel compensation structure and optical compensation method thereof |
| CN105334671A (en) * | 2015-12-08 | 2016-02-17 | 深圳市华星光电技术有限公司 | Liquid crystal display panel compensation structure and optical compensation method thereof |
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| Publication number | Publication date |
|---|---|
| WO2016065659A1 (en) | 2016-05-06 |
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