CN105404055A - Liquid crystal display panel and manufacturing method thereof - Google Patents
Liquid crystal display panel and manufacturing method thereof Download PDFInfo
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- CN105404055A CN105404055A CN201511028141.5A CN201511028141A CN105404055A CN 105404055 A CN105404055 A CN 105404055A CN 201511028141 A CN201511028141 A CN 201511028141A CN 105404055 A CN105404055 A CN 105404055A
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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
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
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- Nonlinear Science (AREA)
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
- Optical Filters (AREA)
Abstract
The invention discloses a liquid crystal display panel and a manufacturing method thereof. The liquid crystal display panel successively comprises a first substrate, a first polarizing layer, a liquid crystal layer, a second substrate and a second polarizing layer. The liquid crystal display panel further comprises a color resistance layer, a patterned phase-delay compensation layer arranged on one side of the first polarizing layer that is back on to the liquid crystal layer, and a filling layer. The total thickness of the patterned phase-delay compensation layer and the fill layer remains unchanged. The patterned phase-delay compensation layer includes several patterned phase-delay plates different in thickness. The patterned phase-delay plates are in one-to-one correspondence with the color resistance. The phase delay exists between different patterned phase-delay plates and wavelengths in the wave in length range of the corresponding color resistance. According to the technical scheme of the invention, through arranging several patterned phase-delay plates different in thickness in the patterned phase-delay compensation layer, the phase delay is formed between different patterned phase-delay plates and wavelengths in the wave in length range of the corresponding color resistance. Therefore, the supplemental purpose of the phase delay is realized.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of display panels and preparation method thereof.
Background technology
Usually, liquid crystal display upper surface arranges a polarising means, and thus display shines the light of intelligent's eye is line polarisation.But, the photosensory cell of human eye gets used to natural light, the polarization direction of natural light is the non-linear polarization light be evenly distributed in all directions, it is identical to the stimulation of human eye photosensory cell on each polarization direction, but human eye receive the only linearly polarized light of display, the photosensory cell of human eye only receives the luminous energy stimulation of a polarization direction, its stimulation obtained is lack of balance, observer easily occurs using asthenopic symptom when receiving linearly polarized light for a long time, therefore proposes rotatory polarization display significant.
Be illustrated in figure 1 the structural representation of the common circularly polarized light display of current display, it comprises the first polarizing layer 10 successively, first substrate 20, liquid crystal layer 30, second substrate 40 second polarizing layer 50 and backlight 60, wherein, at arranged outside 1/4 λ wave plate 70 and the surface-treated layer 80 of the first polarizing layer 10, by the 1/4 λ wave plate 70 in the first polarizing layer 10 arranged outside, the linearly polarized light of outgoing can be made to become circularly polarized light, but this circularly polarized light change and imperfect, because the phase delay delta nd=1/4 λ that 1/4 λ wave plate 70 produces can only corresponding some wavelength, normally 550nm (the some wavelength in centre of 380 ~ 780 wave bands), now 550nm and near it light of wavelength can change desirable circularly polarized light preferably into, but just comparatively perfectly can not change rotatory polarization into away from the light of 550nm (being less than or greater than 550nm) wavelength, because be greater than or less than 1/4 λ for its phase delay delta nd of light away from 550nm (being less than or greater than 550nm) wavelength.
Be illustrated in figure 2 1/4 λ wave plate common used material, phase delay delta nd/ (Δ n589) d of the 1/4 λ wave plate that normalization signal modification PC (modified polycarbonate) in figure, PC (polycarbonate), COC (cyclenes copolymer), TAC (Triafol T), COP (cycloolefine polymer), PMMA+LC (crylic acid resin+liquid crystal coating) make and wavelength relationship.The material wherein with modification PC material the same (Y-axis increases with wavelength and increases gradually) characteristic is referred to as inverse wave length dispersion, and the material wherein with PMMA+LC material the same (Y-axis increases with wavelength and reduces gradually) characteristic is referred to as the long dispersion of downsea.1/4 desirable λ waveplate material is as shown in Fig. 2 cathetus, during for use this kind of material same thickness, phase delay delta nd can increase from 380 ~ 780nm with wavelength and increase, and make the light of each wavelength that the phase delay of 1/4 λ can occur, but this material does not exist.
Illustrate as shown in Figure 4 and adopt phase delay delta nd=1/4 λ, the wave plate of λ=550nm, for the B away from 550nm, elliptically polarized light is changed into after R light transmission 1/4 λ wave plate, suppose that through the light intensity of RGB before sunglasses be R:G:B=1:1:1, but be R:G:B ≠ 1:1:1 through the light intensity of sunglasses (sunglasses having polarizing layer structure) RGB afterwards, thus result in color distortion as shown in Figure 3, and the 1/4 λ wave plate that positive wavelength and inverse wave length material are being made is when arranging over the display, best observation angle under sunglasses all different (when the chromaticity coordinates difference through sunglasses front and rear is minimum), this observation angle is that the polarizing axis of sunglasses is to the angle with polaroid axis on display.
Can find that current rotatory polarization display exists following defect based on above-mentioned actual conditions and theory:
1) becoming elliptically polarized light away from the light fixing certain wavelength, is not more perfect circularly polarized light;
2) the 1/4 λ wave plate made of different materials, the best observation angle under different sunglasses is different;
2) altered a great deal by color during sunglasses viewing display picture.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the present invention is to provide a kind of display panels and preparation method thereof.
To achieve these goals, the technical scheme that provides of the embodiment of the present invention is as follows:
A kind of display panels, described display panels comprises first substrate successively, first polarizing layer, liquid crystal layer, second substrate and the second polarizing layer, described display panels also comprises color blocking layer and is positioned at the opposing patterning phase delay layer of compensation in liquid crystal layer side of the first polarizing layer and packed layer, the gross thickness of described patterning phase delay layer of compensation and packed layer remains unchanged, described patterning phase delay layer of compensation comprises the different patterning phase delay chip of some thickness, described patterning phase delay chip and color blocking one_to_one corresponding are arranged, and there is the phase delay of its wavelength band corresponding in the wavelength in the different patterning phase delay chips pair color blocking corresponding with it.
As a further improvement on the present invention, described color blocking layer comprises R color blocking, G color blocking and B color blocking, and the thickness D of R color blocking, G color blocking and B color blocking
r, D
g, D
bmeet D
r=D
g=D
b.
As a further improvement on the present invention, described patterning phase delay layer of compensation comprises the first patterning phase delay chip, second patterning phase delay chip and the three patterning phase delay chip that arrange corresponding to R color blocking, G color blocking and B color blocking, and the thickness d of the first patterning phase delay chip, the second patterning phase delay chip and the 3rd patterning phase delay chip
r, d
g, d
bmeet d
r> d
g> d
b.
As a further improvement on the present invention, described packed layer phase-delay value is 0.
As a further improvement on the present invention, described patterning phase delay layer of compensation is for compensating liquid crystal layer, and described packed layer is curable resin packed layer.
As a further improvement on the present invention, described patterning phase delay chip has consecutive variations thickness or discontinuous variable thickness.
As a further improvement on the present invention, same plane is positioned at away from color blocking layer or near the surface of color blocking layer in the first patterning phase delay chip in described patterning phase delay chip, the second patterning phase delay chip and the 3rd patterning phase delay chip.
As a further improvement on the present invention, described patterning phase delay chip is 1/4 λ patterning phase delay chip or 1/2 λ patterning phase delay chip.
Correspondingly, a kind of preparation method of display panels, described preparation method comprises:
Form patterning phase delay layer of compensation and the packed layer with predetermined pattern thickness on the first substrate respectively;
Patterning phase delay layer of compensation or packed layer attach the first polarizing layer;
Color blocking layer and liquid crystal layer is formed between second substrate and the first polarizing layer;
The second polarizing layer is attached outside second substrate;
Wherein, formed respectively on the first substrate and there is the patterning phase delay layer of compensation of predetermined pattern thickness and packed layer is:
First on the first substrate both alignment layers is formed; Then coated compensate liquid crystal in both alignment layers, forms the patterning phase delay layer of compensation with predetermined pattern thickness; Last formation on patterning phase delay layer of compensation has predetermined pattern thickness packed layer and carries out planarization, and the upper surface of packed layer is smooth;
Or, form the packed layer with predetermined pattern thickness first on the first substrate; Then on packed layer, both alignment layers is formed; Finally coated compensate liquid crystal in both alignment layers, forms surface and is planarization and the patterning phase delay layer of compensation with predetermined pattern thickness.
Correspondingly, a kind of preparation method of display panels, described preparation method comprises:
Form color blocking layer respectively on the first substrate;
Color blocking layer is formed patterning phase delay layer of compensation and the packed layer with predetermined pattern thickness;
Patterning phase delay layer of compensation or packed layer attach the first polarizing layer;
Liquid crystal layer is formed between second substrate and the first polarizing layer;
The second polarizing layer is attached outside second substrate;
Wherein, formed respectively on the first substrate and there is the patterning phase delay layer of compensation of predetermined pattern thickness and packed layer is:
First on color blocking layer, both alignment layers is formed; Then coated compensate liquid crystal in both alignment layers, forms the patterning phase delay layer of compensation with predetermined pattern thickness; The last packed layer with predetermined pattern thickness that formed on patterning phase delay layer of compensation carries out planarization, and the upper surface of packed layer is smooth;
Or, on color blocking layer, first form the packed layer with predetermined pattern thickness; Then on packed layer, both alignment layers is formed; Finally coated compensate liquid crystal in both alignment layers, forms surface and is planarization and the patterning phase delay layer of compensation with predetermined pattern thickness.
The present invention has following beneficial effect:
By the thickness of different pattern phase delay chip in patterning phase delay layer of compensation, the wavelength in the color blocking corresponding with it can be made to there is the phase delay of its wavelength band corresponding, and then realize the supplementary object of phase delay;
The present invention can provide the visual enjoyment that human eye is comfortable, can avoid the problem that on display panels, display frame color displacement is serious under sunglasses simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the display panels of prior art.
Fig. 2 is the curve map of 1/4 λ patterning phase delay chip medium wavelength λ and phase delay delta nd of different materials.
Fig. 3 a is the chromaticity coordinates figure without R/G/B/W picture on display under sunglasses, different angles sunglasses in prior art, Fig. 3 b be under different angles sunglasses with the differential chart without chromaticity coordinates during sunglasses, wherein, the organic film QWP in sunglasses is the 1/4 λ phase delay chip adopting TAC and PMMA+LC to make.Fig. 4 is the polarization schematic diagram of rgb light line after 1/4 λ patterning phase delay chip in prior art.
Fig. 5 is the structural representation of display panels in first embodiment of the invention.
Fig. 6 is the polarization schematic diagram of rgb light line after 1/4 λ patterning phase delay chip in first embodiment of the invention.
Fig. 7 is the structural representation of display panels in second embodiment of the invention.
Fig. 8 is the structural representation of display panels in third embodiment of the invention.
Fig. 9 a ~ 9e is the preparation technology figure of display panels in the embodiment of the invention.
Embodiment
Technical scheme in the present invention is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
The invention discloses a kind of display panels, comprise first substrate, first polarizing layer, liquid crystal layer, second substrate and the second polarizing layer, display panels also comprises color blocking layer and is positioned at the opposing patterning phase delay layer of compensation in liquid crystal layer side of the first polarizing layer and packed layer, the gross thickness of patterning phase delay layer of compensation and packed layer remains unchanged, patterning phase delay layer of compensation comprises the different patterning phase delay chip of some thickness, described patterning phase delay chip and color blocking one_to_one corresponding are arranged, and there is the phase delay of its wavelength band corresponding in the wavelength in the different patterning phase delay chips pair color blocking corresponding with it.
Particularly, shown in ginseng Fig. 5, display panels first substrate 10, packed layer 20, patterning phase delay layer of compensation 30, first polarizing layer 40, color blocking layer 50, liquid crystal layer 60, second substrate 70 and the second polarizing layer 80 successively in first embodiment of the present invention, preferably, in present embodiment, patterning phase delay layer of compensation 30 is 1/4 λ patterning phase delay chip, and patterning phase delay layer of compensation 30 is located at the first polarizing layer 40 towards on the surface of first substrate side.
Color blocking layer 50 in present embodiment comprises R color blocking 51, G color blocking 52 and the B color blocking 53 that array is arranged, and the thickness D of R color blocking, G color blocking and B color blocking
r, D
g, D
bequal or close, meet D
r=D
g=D
bor D
r≈ D
g≈ D
b.
1/4 λ patterning phase delay chip adopts liquid crystal material, it comprises first patterning phase delay chip 31, the second patterning phase delay chip 32 that arrange corresponding to R color blocking, G color blocking and B color blocking and the 3rd patterning phase delay chip 33, and the thickness d of the first patterning phase delay chip, the second patterning phase delay chip and the 3rd patterning phase delay chip
r, d
g, d
bmeet d
r> d
g> d
b.Preferably, same plane is positioned near the surface of color blocking layer 50 in the first patterning phase delay chip 31, second patterning phase delay chip 32 and the 3rd patterning phase delay chip 33.
Packed layer 20 select phase-delay value be 0 or close to 0 material, as packed layer in present embodiment elects curable resin packed layer as, be respectively d with the thickness of the packed layer 20 at R color blocking, G color blocking and B color blocking opposite position place
r', d
g', d
b', its thickness meets d
r'< d
g'< d
b', packed layer 20 is positioned at same plane on the surface near first substrate 10, and packed layer 20 meets d with the thickness relationship of patterning phase delay layer of compensation 30
r'+ d
r=d
b'+ d
b=d
b'+ d
b.
In present embodiment, patterning phase delay chip and packed layer have discontinuous variable thickness respectively, its relative surface is set to stepped respectively, patterning phase delay chip and packed layer also can have consecutive variations thickness respectively in other embodiments, its corresponding surface takes the form of inclined plane respectively, and no longer illustrating at this is described.
By arranging thickness of liquid crystal d in the first corresponding respectively patterning phase delay chip 31, second patterning phase delay chip 32 of R color blocking, G color blocking and B color blocking and the 3rd patterning phase delay chip 33
r, d
g, d
b, and the thickness d of the packed layer 20 of R color blocking, G color blocking and B color blocking difference correspondence
r', d
g', d
b', the color blocking due to packed layer select phase-delay value be 0 or close to 0 material, existence three phase delay delta nd can be made
r=1/4 λ
r, Δ nd
g=1/4 λ
g, Δ nd
b=1/4 λ
b, such as, in present embodiment λ
r=650nm, λ
g=550nm, λ
b, there is the phase delay (1/4 λ) of its wavelength band corresponding like this relative to R color blocking each in color blocking layer, G color blocking and B color blocking in=450nm.
Further, between adjacent color blocking (R color blocking, G color blocking and B color blocking), light shield layer 80 is provided with in color blocking layer 50 in present embodiment.
Only have a phase delay relative to the inclined display panel of circle in Fig. 1, when choosing 550nm wavelength, R, B color blocking passes through the wavelength of light very away from this phase delay.And in present embodiment as shown in Figure 5, color blocking layer through each color blocking of light can select wave band in the middle of, make color blocking layer there are three phase delay delta nd
r, Δ nd
gwith Δ nd
b, as shown in Figure 6, RGB color blocking through light more perfectly can both change circularly polarized light into respectively through behind the phase delay area of its correspondence, RGB color blocking through light all access expansion light, contribute to alleviating for a long time depending on after use kopiopia.
Such as, when this display panels being applied to sunglasses, light intensity through RGB before sunglasses is R:G:B=1:1:1, because RGB changes circularly polarized light into, degree is the same, light intensity so through sunglasses (sunglasses have polarizer constructions) RGB is afterwards R:G:B=1:1:1 or R:G:B ≈ 1:1:1, the display panel optimal visibility angle for the different first polarizing layer axis of each use under sunglasses can be made so the same, be convenient to the liberalization of display polarization angle design angle, under sunglasses, display picture is avoided color displacement occurs simultaneously, or there is color displacement in minimum degree, very little with color change during optimal visibility angle viewing display picture.
Shown in ginseng Fig. 7, patterning phase delay layer of compensation 30 can also be arranged at first substrate 10 towards on the surface of the first polarizing layer 40 side, packed layer 20 is between patterning phase delay layer of compensation 30 and the first polarizing layer 40, there is the phase delay of its wavelength band corresponding in the wavelength that can realize equally in patterning phase delay chips different in the above-mentioned embodiment pair color blocking corresponding with it, the thickness of patterning phase delay layer of compensation 30 arranges identical with above-mentioned embodiment with the thickness of packed layer 20, is no longer described in detail herein.
Shown in ginseng Fig. 8, in the 3rd embodiment of the present invention, color blocking layer 50 also can not arrange with on the first polarizing layer 40 in the first embodiment, and be located at second substrate 70 towards on the surface of the first polarizing layer 40 side, packed layer 20 in present embodiment, patterning phase delay layer of compensation 30 are identical with the first embodiment, no longer repeat herein.
In the respective embodiments described above, patterning phase delay layer of compensation 30 also can be 1/2 λ patterning phase delay chip, R color blocking each in color blocking layer, G color blocking and B color blocking can be postponed 1/2 λ phase place in its wavelength band corresponding, change the polarization direction linearly polarized light vertical with former polarization direction into by former linearly polarized light.
The invention also discloses a kind of preparation method of display panels, it comprises the following steps:
Form patterning phase delay layer of compensation and the packed layer with predetermined pattern thickness on the first substrate respectively;
Patterning phase delay layer of compensation or packed layer attach the first polarizing layer;
Color blocking layer and liquid crystal layer is formed between second substrate and the first polarizing layer;
The second polarizing layer is attached outside second substrate;
Wherein, formed respectively on the first substrate and there is the patterning phase delay layer of compensation of predetermined pattern thickness and packed layer is:
First on the first substrate both alignment layers is formed; Then coated compensate liquid crystal in both alignment layers, forms the patterning phase delay layer of compensation with predetermined pattern thickness; Last formation on patterning phase delay layer of compensation has predetermined pattern thickness packed layer and carries out planarization, and the upper surface of packed layer is smooth;
Or, form the packed layer with predetermined pattern thickness first on the first substrate; Then on packed layer, both alignment layers is formed; Finally coated compensate liquid crystal in both alignment layers, forms surface and is planarization and the patterning phase delay layer of compensation with predetermined pattern thickness.
Further, patterning phase delay layer of compensation is by coated compensate liquid crystal and solidify to form, and ultraviolet radiation-curable is passed through in solidification.
Be described for the display panels prepared in the first embodiment below, specifically comprise the following steps:
1) on first substrate 10, packed layer 20 is prepared.
Shown in ginseng Fig. 9 a, the first substrate applies curable resin, and the phase-delay value of curable resin is essentially 0.Curable resin can be UV-cured resin (UVcurableresin) or heat reactive resin (thermo-curableresin).
The method forming curable resin comprises following two kinds:
A) impress this curable resin to form pattern structure on first substrate 10 with predetermined pattern, and make the corresponding RGB color blocking lane place of resin have predetermined pattern thickness, thickness meets d
r'< d
g'< d
b', and adopt heat curing or mode corresponding to ultra-violet curing to be cured.
B) adopt gray-level mask etching curable resin, obtain the packed layer with predetermined pattern thickness.
Wherein, Fig. 9 b and 9c is two kinds of situations of packed layer, the thickness d of the packed layer that R color blocking is corresponding in Fig. 9 b
r'be 0, and the packed layer that in Fig. 9 c, R color blocking is corresponding have certain thickness.
2) on packed layer 20, both alignment layers (not shown) is formed.
The formation method of this both alignment layers is selected from scratches orientation method (micro-scratchalignmenttreatment), brushing formula orientation method (rubbingtreatment), light orientation method (photo-alignment), silicon dioxide steam method (SiO
2evaporation) one, in ion beam orientation method (ionbeamalignment).
3) join shown in Fig. 9 d, both alignment layers is formed patterning phase delay layer of compensation 30.
The liquid crystal layer of coating specific thicknesses is on both alignment layers, this patterning phase delay layer of compensation 30 is a kind of aggretion type liquid crystal material, such as (product are called BASFLC242 to diacrylate (diacrylate), purchased from BASF Aktiengesellschaft) and photo-polymerization type active liquid wafer solution (product are called RMS10-021, purchased from Taiwan Merck Photoelectric Co., Ltd.).Liquid crystal material can need first to be mixed in solvent according to follow-up coating, and the solid content of liquid crystal solution is between 10%-50%.In a preferred implementation of the present invention, the solid content of liquid crystal solution is about 20%, and the solvent of use is in art known by those of ordinary skill.
4) solidification compensates liquid crystal, comprising:
A: liquid crystal layer removes solvent in heating mode, and with both alignment layers orientation.The temperature heated is relevant to aggretion type liquid crystal material, is 20 DEG C-100 DEG C, is preferably 50 DEG C-100 DEG C.Because heating-up temperature can affect the orientation degree of this liquid crystal layer along this both alignment layers, therefore need in heating process to carry out temperature control.
B: ultraviolet radiation-curable liquid crystal layer.With this liquid crystal layer of ultraviolet light polymerization, once curing is completed, patterning phase delay layer of compensation can adhere on packed layer.
If patterning phase delay layer of compensation in present embodiment is 1/4 λ patterning phase delay chip, to make in 1/4 λ patterning phase delay chip d on thickness of liquid crystal
r> d
g> d
b, by arranging thickness of liquid crystal d in 1/4 corresponding respectively λ patterning phase delay chip of RGB color blocking
r, d
g, d
b, the phase delay delta nd of existence three range sections can be made
r=1/4 λ
r, Δ nd
g=1/4 λ
g, Δ nd
b=1/4 λ
b, such as λ
r=610 ~ 680nm, λ
g=500 ~ 600nm, λ
b, there is the phase delay (1/4 λ) of its wavelength band corresponding like this relative to R color blocking each in color blocking layer, G color blocking and B color blocking in=430 ~ 480nm.
5) the first polarizing layer 40 is attached.
First polarizing layer 40 can be attached on the compensation liquid crystal after solidification (patterning phase delay layer of compensation 30).
6) between second substrate 70 and the first polarizing layer 40, color blocking layer 50 is formed, light shield layer 90 is also formed in color blocking layer 50, as shown in figure 9e, then outside second substrate 70, attach the second polarizing layer 80, and between second substrate 70 and color blocking layer 50, form liquid crystal layer 60, the display panels of final formation shown in Fig. 5.
In other embodiments, also first both alignment layers can be formed on first substrate 10, then in both alignment layers, coated compensate liquid crystal is passed through, and carry out patterning, form the patterning phase delay layer of compensation 30 with predetermined pattern thickness, on patterning phase delay layer of compensation, form the packed layer 20 with patterned thickness again, patterning phase delay layer of compensation, both alignment layers are identical with above-mentioned embodiment with the preparation method of packed layer, are no longer described in detail at this.
Display panels in the present invention is not limited to said structure; the patterning phase delay layer of compensation structure be arranged at outside the first polarizing layer all belongs to the scope that the present invention protects; as in another embodiment of the present invention; display panels comprises first substrate, color blocking layer, packed layer, patterning phase delay layer of compensation, the first polarizing layer, liquid crystal layer, second substrate, the second polarizing layer from the top down successively; each Rotating fields in this embodiment is identical with the first embodiment, no longer repeats herein.
Accordingly, the preparation method of this display panels comprises:
Form color blocking layer respectively on the first substrate;
Color blocking layer is formed patterning phase delay layer of compensation and the packed layer with predetermined pattern thickness;
Patterning phase delay layer of compensation or packed layer attach the first polarizing layer;
Liquid crystal layer is formed between second substrate and the first polarizing layer;
The second polarizing layer is attached outside second substrate;
Wherein, formed respectively on the first substrate and there is the patterning phase delay layer of compensation of predetermined pattern thickness and packed layer is:
First on color blocking layer, both alignment layers is formed; Then coated compensate liquid crystal in both alignment layers, forms the patterning phase delay layer of compensation with predetermined pattern thickness; The last packed layer with predetermined pattern thickness that formed on patterning phase delay layer of compensation carries out planarization, and the upper surface of packed layer is smooth;
Or, on color blocking layer, first form the packed layer with predetermined pattern thickness; Then on packed layer, both alignment layers is formed; Finally coated compensate liquid crystal in both alignment layers, forms surface and is planarization and the patterning phase delay layer of compensation with predetermined pattern thickness.
Wherein, color blocking layer, patterning phase delay layer of compensation are all identical with the first embodiment with formation methods such as packed layers, also no longer repeat herein.
Should be understood that, above-mentioned embodiment is described for RGB display panel, color blocking layer comprises R color blocking, G color blocking and B color blocking, also can be applied in other embodiments in RGBW display panel, accordingly, also comprise W color blocking in RGBW display panel, in order to avoid making W color blocking have the inclined effect of perfection circle macroscopically through light, W color blocking can have different thickness d
w1, d
w2, d
w3deng, the phase delay λ of its correspondence can distinguish high, medium and low three wavelength simultaneously, now at utmost can reduce the color displacement caused through W color blocking after sunglasses.
When display panels in the present invention is applied in display, supporting construction (TAC) is also respectively equipped with at the first polarizing layer and the second polarizing layer, certainly, also can remove a supporting construction, contribute to realizing display thinning or display flexible.
As can be seen from the above technical solutions, the present invention has following beneficial effect:
By the thickness of different pattern phase delay chip in patterning phase delay layer of compensation, the wavelength in the color blocking corresponding with it can be made to there is the phase delay of its wavelength band corresponding, and then realize the supplementary object of phase delay;
The present invention can provide the visual enjoyment that human eye is comfortable, can avoid the problem that on display panels, display frame color displacement is serious under sunglasses simultaneously.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (10)
1. a display panels, described display panels comprises first substrate successively, first polarizing layer, liquid crystal layer, second substrate and the second polarizing layer, it is characterized in that, described display panels also comprises color blocking layer and is positioned at the opposing patterning phase delay layer of compensation in liquid crystal layer side of the first polarizing layer and packed layer, the gross thickness of described patterning phase delay layer of compensation and packed layer remains unchanged, described patterning phase delay layer of compensation comprises the different patterning phase delay chip of some thickness, described patterning phase delay chip and color blocking one_to_one corresponding are arranged, and there is the phase delay of its wavelength band corresponding in the wavelength in the different patterning phase delay chips pair color blocking corresponding with it.
2. display panels according to claim 1, is characterized in that, described color blocking layer comprises R color blocking, G color blocking and B color blocking, and the thickness D of R color blocking, G color blocking and B color blocking
r, D
g, D
bmeet D
r=D
g=D
b.
3. display panels according to claim 2, it is characterized in that, described patterning phase delay layer of compensation comprises the first patterning phase delay chip, second patterning phase delay chip and the three patterning phase delay chip that arrange corresponding to R color blocking, G color blocking and B color blocking, and the thickness d of the first patterning phase delay chip, the second patterning phase delay chip and the 3rd patterning phase delay chip
r, d
g, d
bmeet d
r> d
g> d
b.
4. display panels according to claim 1, is characterized in that, described packed layer phase-delay value is 0.
5. display panels according to claim 4, is characterized in that, described patterning phase delay layer of compensation is for compensating liquid crystal layer, and described packed layer is curable resin packed layer.
6. display panels according to claim 3, is characterized in that, described patterning phase delay chip has consecutive variations thickness or discontinuous variable thickness.
7. display panels according to claim 3, it is characterized in that, in the first patterning phase delay chip in described patterning phase delay chip, the second patterning phase delay chip and the 3rd patterning phase delay chip, be positioned at same plane away from color blocking layer or near the surface of color blocking layer.
8. display panels according to claim 1, is characterized in that, described patterning phase delay chip is 1/4 λ patterning phase delay chip or 1/2 λ patterning phase delay chip.
9. a preparation method for display panels, is characterized in that, described preparation method comprises:
Form patterning phase delay layer of compensation and the packed layer with predetermined pattern thickness on the first substrate respectively;
Patterning phase delay layer of compensation or packed layer attach the first polarizing layer;
Color blocking layer and liquid crystal layer is formed between second substrate and the first polarizing layer;
The second polarizing layer is attached outside second substrate;
Wherein, formed respectively on the first substrate and there is the patterning phase delay layer of compensation of predetermined pattern thickness and packed layer is:
First on the first substrate both alignment layers is formed; Then coated compensate liquid crystal in both alignment layers, forms the patterning phase delay layer of compensation with predetermined pattern thickness; Last formation on patterning phase delay layer of compensation has predetermined pattern thickness packed layer and carries out planarization, and the upper surface of packed layer is smooth;
Or, form the packed layer with predetermined pattern thickness first on the first substrate; Then on packed layer, both alignment layers is formed; Finally coated compensate liquid crystal in both alignment layers, forms surface and is planarization and the patterning phase delay layer of compensation with predetermined pattern thickness.
10. a preparation method for display panels, is characterized in that, described preparation method comprises:
Form color blocking layer respectively on the first substrate;
Color blocking layer is formed patterning phase delay layer of compensation and the packed layer with predetermined pattern thickness;
Patterning phase delay layer of compensation or packed layer attach the first polarizing layer;
Liquid crystal layer is formed between second substrate and the first polarizing layer;
The second polarizing layer is attached outside second substrate;
Wherein, formed respectively on the first substrate and there is the patterning phase delay layer of compensation of predetermined pattern thickness and packed layer is:
First on color blocking layer, both alignment layers is formed; Then coated compensate liquid crystal in both alignment layers, forms the patterning phase delay layer of compensation with predetermined pattern thickness; The last packed layer with predetermined pattern thickness that formed on patterning phase delay layer of compensation carries out planarization, and the upper surface of packed layer is smooth;
Or, on color blocking layer, first form the packed layer with predetermined pattern thickness; Then on packed layer, both alignment layers is formed; Finally coated compensate liquid crystal in both alignment layers, forms surface and is planarization and the patterning phase delay layer of compensation with predetermined pattern thickness.
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