CN101211059A - Optical compensation curved arranged LCD and making method thereof - Google Patents
Optical compensation curved arranged LCD and making method thereof Download PDFInfo
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- CN101211059A CN101211059A CNA2006101723130A CN200610172313A CN101211059A CN 101211059 A CN101211059 A CN 101211059A CN A2006101723130 A CNA2006101723130 A CN A2006101723130A CN 200610172313 A CN200610172313 A CN 200610172313A CN 101211059 A CN101211059 A CN 101211059A
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Abstract
The invention provides an optically compensated bend (OCB) type liquid crystal display and a manufacturing method thereof. The optically compensated bend type liquid crystal display comprises a first base plate which is arranged to be opposite to a second base plate, and a liquid crystal layer is arranged between the two base plates. A first alignment layer is arranged on the first base plate, a second alignment layer is arranged on a second region on the first alignment layer, and the first alignment layer on a first region is exposed. A third alignment layer is arranged on the second base plate. The first alignment layer and the second alignment layer provide different pretilt angles to the liquid crystal layer; wherein, when an external electric field is imposed on the optically compensated bend type liquid crystal display, a tilted spread-bending mode conversion boundary is formed between the first region and the second region.
Description
Technical field
The present invention relates to a kind of display assembly, be particularly to a kind ofly have height and reply speed and the optical compensation curved arrangement of wide viewing angle (OCB) type LCD and manufacture method thereof.
Background technology
LCD (LCD) has many advantages, and for example volume is little, in light weight, low power consumption or the like.Therefore, LCD has been applied to electronic products such as hand-held computer, mobile phone widely.That is LCD Technology is just continuing towards field development light, thin and that be easy to carry about with one.
Conventional liquid crystal is restricted its application because of being subject to its narrow viewing angle characteristic.Therefore for making LCD have wide viewing angle, traditional multiple field domain vertical orientation (Multi-DomainVertical Alignment, be called for short MVA) the type LCD, utilize projection (bump) or protrusion (protrusion) to cause the Liquid Crystal Molecules Alignment position to difference, and then the electric force lines distribution in the liquid crystal cells (cell) is changed, also make Liquid Crystal Molecules Alignment simultaneously and the mode of falling down changes.Yet, on substrate, form the photoetching process of projection (bump) or protrusion (protrusion) need, even need form by semi-transparent mask (half-tone mask) by complexity.
In known techniques, optical compensation curved arrange type (Optically Compensated Bend is called for short OCB) LCD utilization designs cleverly and changes Liquid Crystal Molecules Alignment with realization self-compensating visual angle, and then increases the purpose of replying speed and wide viewing angle.
United States Patent (USP) US discloses a kind of OCB type LCD for 6,950, No. 172, reaches oblique exhibition-beam mode conversion (splay-to-bend transition) with multizone orientation collocation appropriate drive mode.It should be noted that the production method of its multizone orientation forms with the both alignment layers that traditional ultraviolet light (UV) irradiation contains photocatalyst.Yet, with need arrange in pairs or groups multiple tracks photo-marsk process and add photocatalyst in both alignment layers of the method for light orientation,
Figure 1A shows traditional OCB type LCD, reaches the diagrammatic cross-section of oblique exhibition-beam mode conversion with multizone orientation collocation appropriate drive mode.Figure 1B shows the top view of traditional OCB type LCD in oblique exhibition-beam mode conversion.See also Figure 1A, an OCB type LCD device 100 comprises an active block matrix type liquid crystal unit 104, is arranged between the upper and lower Polarizer 101,102, and a phase compensation film 103 is arranged between Polarizer 101 and the liquid crystal cells 104.Active block matrix type liquid crystal unit 104 includes source component multiple substrate 106 and subtend substrate 105.One pixel electrode 108 is arranged on the active block multiple substrate 106, and once both alignment layers 110 is arranged on the pixel electrode 108.Community electrode 107 is arranged on the subtend substrate 105, and both alignment layers 109 is arranged on the common electrode 107 on one.One liquid crystal layer 112 is arranged between active block multiple substrate 106 and the subtend substrate 105.
OCB type LCD device 100 comprises the array that pixel constitutes, and each pixel is the zone that surrounds by between signal electrode line 113 and gate line 114 (seeing also Figure 1B).Each pixel is by a switch module 111 control pixel electrodes.Moreover each pixel comprises pixel region I, II two times, in inferior pixel region I, and the tilt angle A2 that following both alignment layers 110b tool is little, the tilt angle C2 that last both alignment layers 109b tool is big.Relative, in inferior pixel region II, the tilt angle B2 that following both alignment layers 110a tool is big, the tilt angle D2 that last both alignment layers 109a tool is little.
When driving OCB type LCD device 100 with appropriate drive mode, between inferior pixel region I and II, liquid crystal molecule 120,121 takes place to be changed (splay-to-bendtransition) and forms a dark line (disclination line) 123 from oblique exhibition-beam mode, wherein blanking bar 123 is by a nucleating point (see also Figure 1B 124), and outwards extending forms.
Yet above-mentioned prior art method must be added light reaction agent or photocatalyst in alignment film, and needs to cooperate expensive ultraviolet photoetching equipment, and the multiple tracks photo-marsk process, increases manufacturing cost.
Summary of the invention
In view of this, the invention provides and a kind ofly have height and reply speed and the optical compensation curved arrangement of wide viewing angle (OCB) type LCD and manufacture method thereof, by different tilt angles zone or the orientation of tool multizone, and the structure of collocation protrusion and/or gap electrode, to reach wide-visual angle effect.
Therefore, the invention provides a kind of optical compensation curved arranged LCD, comprising: one first substrate and one second substrate subtend are provided with, and insert and put a liquid crystal layer therebetween; One first both alignment layers is arranged on first substrate; One second both alignment layers is arranged at the second area on first both alignment layers, and exposes first both alignment layers on the first area; And one the 3rd both alignment layers be arranged on second substrate; Wherein first both alignment layers respectively provides this liquid crystal layer different tilt angles with second both alignment layers; And wherein when applying an extra electric field, form a double mode transform boundary between first area and the second area in optical compensation curved arranged LCD.
Therefore, the invention provides another kind of optical compensation curved arranged LCD, comprising: one first substrate and one second substrate subtend are provided with, and insert and put a liquid crystal layer therebetween; One first both alignment layers is arranged on first substrate; One second both alignment layers is arranged at the second area on first both alignment layers, and exposes first both alignment layers on the first area; One the 3rd both alignment layers is arranged on second substrate; And one the 4th both alignment layers be arranged at a second area on the 3rd both alignment layers, and expose the 3rd both alignment layers on the first area; Wherein first both alignment layers respectively provides different tilt angle of liquid crystal layer and the 3rd both alignment layers and the 4th both alignment layers respectively to provide this liquid crystal layer different tilt angles with second both alignment layers; And wherein when applying an extra electric field, form a double mode transform boundary between first area and the second area in optical compensation curved arranged LCD.
Therefore, the present invention provides a kind of manufacture method of optical compensation curved arranged LCD in addition, comprising: one first substrate is provided, has an electrode structure on it; Be coated with one first both alignment layers on first substrate; Be arranged at a second area on first both alignment layers with ink-jet method spray cloth one second both alignment layers, and expose first both alignment layers on the first area; Be coated with one the 3rd both alignment layers on one second substrate; And subtend makes up first substrate and second substrate, and therebetween pours into a liquid crystal layer; Wherein first both alignment layers respectively provides liquid crystal layer different tilt angles with second both alignment layers; And wherein when applying an extra electric field, form a double mode transform boundary between first area and the second area in optical compensation curved arranged LCD.
For the features and advantages of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Figure 1A shows traditional OCB type LCD, reaches the diagrammatic cross-section of oblique exhibition-beam mode conversion with multizone orientation collocation appropriate drive mode;
Figure 1B shows the top view of traditional OCB type LCD in oblique exhibition-beam mode conversion;
Fig. 2 is the synoptic diagram of coating one alignment layer material on a substrate that shows the embodiment of the invention;
Fig. 3 shows the top view that is formed the both alignment layers pattern by method step shown in Figure 2;
Fig. 4 shows the step synoptic diagram of spray cloth second both alignment layers on the first both alignment layers pattern;
Fig. 5 shows that spray is distributed in the first both alignment layers pattern synoptic diagram according to the embodiment of the invention second both alignment layers; And
Fig. 6 A-6E is the diagrammatic cross-section that shows according to optical compensation curved arrange type (OCB) LCD of the embodiment of the invention.
The primary clustering symbol description
The prior art part (Figure 1A-1B)
100～OCB type LCD device;
101,102～upper and lower Polarizer;
103～phase compensation film;
104～active block matrix type liquid crystal unit;
105～subtend substrate;
106～active block multiple substrate;
107～common electrode;
108～pixel electrode;
109,109a, 109b～last both alignment layers;
110,110a, 110b～following both alignment layers;
111～switch module;
112～liquid crystal layer;
113～signal electrode line;
114,114 '～gate line;
120,121～liquid crystal molecule is from tiltedly exhibition-beam mode conversion;
123～dark line;
I, II～inferior pixel region;
A2, B2, C2, D2～tilt angle.
The present invention's part (Fig. 2～6E)
210～roller;
220～the first both alignment layers patterns;
230～the first substrates;
240～micro-fluid ejecting device;
250 '～drop;
250～the second both alignment layers;
300a, 300b, 300c, 300d, 300e～optical compensation curved arranged LCD;
310～the first substrates;
320～the second substrates;
330～the 3rd both alignment layers;
335,335 '～the 4th both alignment layers;
340～the first both alignment layers;
350,350 '～the second both alignment layers;
360～liquid crystal layer;
365a, 365b～liquid crystal molecule are from tiltedly exhibition-beam mode conversion;
370～borderline region;
I, II～first and second zone;
A, B, C, D～tilt angle.
Embodiment
The invention provides the LCD of orientation between a multizone, by the different both alignment layers of coating character in each pixel, to reach wide-visual angle effect.It should be noted, though the embodiment of the invention is with optical compensation curved arrange type (Optically Compensated Bend, abbreviation OCB) LCD is the different alignment film of example explanation coating multizone, right non-limiting in the LCD of this form, the LCD of other form also can be used orientation between multizone of the present invention.
Fig. 2 is the synoptic diagram of coating one alignment layer material on a substrate that shows the embodiment of the invention.The material of both alignment layers can comprise polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.Utilize the surface printing technology to coat on the substrate with the form of large tracts of land block type.
One substrate 230 at first is provided, has an electrode layer or other assembly (not icon) on it, for example chromatic filter layer.Substrate 230 can comprise glass substrate, metal substrate or transparent plastic substrate.On substrate 230, comprise active formula array Control Component, for example thin film transistor (TFT).Electrode layer comprises organic conductive material or inorganic conductive material.Another embodiment of the present invention, substrate 230 also can comprise the subtend substrate, chromatic colour filter layer on it.Then, the flange of tool predetermined pattern is fixed on the roller 210, and, the material of both alignment layers is coated on the substrate 230 with the form of large tracts of land block type.The top view of the first both alignment layers pattern 220 that forms as shown in Figure 3.
It should be noted that the first both alignment layers pattern 220 shown in Figure 3 is not limited to the zone of whole LCD, it also can be expressed as other single pixel region or a plurality of pixel region.
Fig. 4 shows according to embodiment of the invention step, comprises the diagrammatic cross-section of spray cloth second both alignment layers 250 on the first both alignment layers pattern 220.The formation step of second both alignment layers 250 comprises with ink-jet method and forming, by a micro-fluid ejecting device 240, for example thermal drives ink gun or piezoelectric ink-jet head, with alignment layer material with drop 250 ' form spray on each first both alignment layers area of the pattern 220.The area size of second both alignment layers 250 and position can be by the control position of micro-fluid ejecting device 240 and the sizes of drop 250 ', and precisely controlled.The material of second both alignment layers can comprise polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.Then, after 180 ℃ of baking programs, carry out the orientation operation and for example grind (rubbing).
Fig. 5 shows according to second both alignment layers of the embodiment of the invention to spray the diagrammatic cross-section that is distributed on first both alignment layers.Second both alignment layers 250 can accurately be sprayed on the ad-hoc location of first both alignment layers 220, and first both alignment layers 220 of exposed portions serve.By both alignment layers of different nature, reaching has different optical character in identical LCD.
According to another embodiment of the present invention, by the polarity of selecting alignment layer material for use (polarity), that is select for use and itself have different surface tension, and then make different alignment layer surfaces produce specific LCD alignment ability with the interface of liquid crystal molecule between.
According to preferred embodiment of the present invention, 220 pairs of liquid crystal tools of first both alignment layers vertical orientation becomes 75～90 ° tilt angle between the long axis direction that makes liquid crystal molecule and first both alignment layers 220.And second both alignment layers, 250 tool horizontal direction matchings become 0～15 ° tilt angle between the long axis direction that makes liquid crystal molecule and second both alignment layers 250.Perhaps, first both alignment layers, 220 tool horizontal direction matchings become 0～15 ° tilt angle between the long axis direction that makes liquid crystal molecule and first both alignment layers 220.And second both alignment layers, 250 tool vertical orientations become 75～90 ° tilt angle between the long axis direction that makes liquid crystal molecule and second both alignment layers 250.
According to the embodiment of the invention, mainly be the mode of utilizing ink-jet, perhaps with PI roll printing collocation ink-jetting process, make and produce the different orientation characteristic of multizone in the display pannel.These different orientation interfaces will cause liquid crystal molecule to produce dark line (disclination line).And under suitable driven condition, above-mentioned dark line will become OCB type LCD tiltedly to be opened up-nucleating point of the conversion of beam mode, and effectively accelerate transition speed.
Fig. 6 A is the diagrammatic cross-section that shows according to optical compensation curved arrange type (OCB) LCD of first embodiment of the invention.See also Fig. 6 A, an optical compensation curved arranged LCD 300a comprise that one first substrate 310 and one second substrate, 320 subtends are arranged at first substrate 310, and a liquid crystal layer 360 is folded between this first substrate 310 and second substrate 320.First substrate 310 for example is an active block multiple substrate, and second substrate 320 for example is a color filter film substrate, comprises that a chromatic filter layer structure and a black photoresistance matrix are between the chromatic filter layer structure.Liquid crystal layer 360 comprises an optical compensation curved arrange type liquid crystal material, is subjected to the influence of liquid crystal fluid character less, thereby has and reply speed faster.
Has an electrode layer on first substrate 310, as controlling the pixel electrode that liquid crystal molecule turns to.One first both alignment layers 340, for example SE-7492 coats the first area I on first substrate 310, and the hard curing process of arranging in pairs or groups.And one second both alignment layers 350, optionally coat the second area II on first substrate 310.The generation type of second both alignment layers 350 is for example coated the SE-1410 of γ fourth breast ketone dilution with ink-jet method the outer peripheral areas of first both alignment layers 340 (for example SE-7492).Then, impose a drying process and friction matching technology, make first area I and second area II produce difference the orientation of liquid crystal molecule.First both alignment layers 340 respectively provides different orientation of liquid crystal layer and tilt angle (be denoted as angle B and angle C, angle B and angle C can be similar and different) with this second both alignment layers 350.According to a preferred embodiment of the present invention, the generation type of first both alignment layers 340 and second both alignment layers 350 comprises with printing or ink-jet method and is formed at first area I and second area II on first substrate 310 respectively.The material of first both alignment layers 340 and second both alignment layers 350 comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.Perhaps, second both alignment layers comprises a surface modifier or an organic solvent, ethanol (ethanol) for example, isopropyl alcohol (isopropanol), n-methyl arsenic noise made in coughing or vomiting alkane ketone (n-methyl pyrrolidone), 3-methylphenol (m-cresol), γ-Ding lactones (γ-butyrolactone), n, n-dimethyl acetamide (n, n-dimethylacetamide), dimethyl formamide (n, n-dimethylformamide), ethylene glycol monobutyl ether (ethylene glycol monobutyl ether) or diethylene glycol monobutyl ether (diethylene glycolmonobutyl ether).
First area I on first substrate 310 is a pixel region, and second area II is an outer peripheral areas.Perhaps, the first area I on first substrate 310 is an outer peripheral areas, and second area II is a pixel region.The definition of outer peripheral areas comprises black matrix area, gate line zone, data line zone, active block zone, contact hole zone or slit areas.In addition according to embodiment, the first area I on first substrate 310 may be selected to be the part of a pixel region, and second area II is another part of this pixel region according to the present invention.
Have a black-matrix layer and a chromatic filter layer structure on second substrate 320.One electrode layer is arranged on the chromatic filter layer, divides from the common electrode that turns to as the control liquid crystal.One the 3rd both alignment layers 330, for example SE-7492 is arranged on the electrode layer, and the hard roasting and grinding allocating process of collocation, makes liquid crystal molecule produce about 4-5 ° tilt angle (being denoted as angle A).The material of the 3rd both alignment layers 330 comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
According to embodiments of the invention, 340 pairs of liquid crystal layers of first both alignment layers, 360 tool horizontal direction matchings become tilt angle B, for example 0～15 ° between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and first both alignment layers 340.And 350 pairs of liquid crystal layer tools of second both alignment layers vertical orientation becomes tilt angle C, for example 75～90 ° between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and second both alignment layers 350.Become tilt angle A, for example 0～15 ° between 330 pairs of liquid crystal layers of one the 3rd both alignment layers, the 360 tool horizontal direction matchings, the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and first both alignment layers 340.
Perhaps, 340 pairs of this liquid crystal layer 360 tool horizontal direction matchings of first both alignment layers become 0～10 ° tilt angle between the long axis direction that makes the liquid crystal molecule in the liquid crystal layer and first both alignment layers; And 350 pairs of these liquid crystal layer tool horizontal direction matchings of second both alignment layers wherein become 0～9 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and second both alignment layers.The preferably is, first both alignment layers is to liquid crystal layer tool horizontal direction matching, becomes 0～7 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and first both alignment layers; And wherein second both alignment layers is to liquid crystal layer tool horizontal direction matching, becomes 0～4 ° tilt angle between the long axis direction that makes the liquid crystal molecule in the liquid crystal layer and second both alignment layers.
According to the embodiment of the invention,, first area I and second area II produce dark line (disclination line) because, resulting in borderline region 370 to the difference of Liquid Crystal Molecules Alignment.After imposing suitable driven, promptly produce OCB type liquid crystal molecule 360a, 360b the required nucleating point of transition (Splay to bendtransition), and accelerate transition speed and the effect of reaching multiple regional field domain effectively from oblique exhibition-beam mode.
Fig. 6 B is the diagrammatic cross-section that shows according to optical compensation curved arrange type (OCB) LCD of second embodiment of the invention.See also Fig. 6 B, its structure of OCB type LCD 300b of second embodiment of the invention and the OCB type LCD 300a of formation step similar in appearance to first embodiment for simple and clear event, are omitted identical narration at this.Difference is, first both alignment layers 340, and for example SE-7492 coats on first substrate 310 comprehensively, and the hard roasting and friction matching technology of collocation.And one second both alignment layers 350 ', optionally coat the second area II on first both alignment layers 340, and expose first both alignment layers 340 of first area I.The generation type of second both alignment layers 350 ' is for example coated outer peripheral areas on first both alignment layers 340 (for example SE-7492) with ink-jet method with γ fourth breast ketone.Then, impose a drying process, make first area I and second area II produce difference the orientation of liquid crystal molecule.Perhaps, impose friction process again after can selecting to impose drying process, make first area I and second area II produce difference the orientation of liquid crystal molecule.First both alignment layers 340 respectively provides different orientation of liquid crystal layer and tilt angle (be denoted as angle B and angle C, angle B and angle C can be similar and different) with this second both alignment layers 350 '.Perhaps, second both alignment layers comprises a surface modifier or an organic solvent, ethanol (ethanol) for example, isopropyl alcohol (isopropanol), n-methyl arsenic noise made in coughing or vomiting alkane ketone (n-methyl pyrrolidone), 3-methylphenol (m-cresol), γ fourth lactones (γ-butyrolactone), n, n-dimethyl acetamide (n, n-dimethylacetamide), dimethyl formamide (n, n-dimethylformamide), ethylene glycol monobutyl ether (ethylene glycol monobutyl ether) or diethylene glycol monobutyl ether (diethylene glycolmonobutyl ether).
Fig. 6 C is the diagrammatic cross-section that shows according to optical compensation curved arrange type (OCB) LCD of third embodiment of the invention.See also Fig. 6 C, its structure of OCB type LCD 300c of third embodiment of the invention and the OCB type LCD 300a of formation step similar in appearance to first embodiment for simple and clear event, are omitted identical narration at this.Difference is, the 3rd both alignment layers 330, and for example SE-7492 coats the second area II on second substrate 320, and the hard curing process of arranging in pairs or groups.And one the 4th both alignment layers 335, optionally coat the first area I on second substrate 320.The generation type of the 4th both alignment layers 335 is for example coated the SE-1410 of γ fourth breast ketone dilution with ink-jet method the outer peripheral areas of the 3rd both alignment layers 330 (for example SE-7492).Then, impose a drying process and friction matching technology, make first area I and second area II produce difference the orientation of liquid crystal molecule.Perhaps, impose friction matching technology again after can selecting to impose a drying process, make first area I and second area II produce difference the orientation of liquid crystal molecule.The 3rd both alignment layers 330 respectively provides different orientation of liquid crystal layer and tilt angle (be denoted as angle A and angle D, angle A and angle D can be similar and different) with the 4th both alignment layers 335.According to a preferred embodiment of the present invention, the generation type of the 3rd both alignment layers 330 and the 4th both alignment layers 335 comprises with printing or ink-jet method and is formed at second area II and first area I on second substrate 320 respectively.
Fig. 6 D is the diagrammatic cross-section that shows according to optical compensation curved arrange type (OCB) LCD of fourth embodiment of the invention.See also Fig. 6 D, its structure of OCB type LCD 300d of fourth embodiment of the invention and the OCB type LCD 300b of formation step similar in appearance to second embodiment for simple and clear event, are omitted identical narration at this.Difference is, the 3rd both alignment layers 330, and for example SE-7492 coats the second area II on second substrate 320, and the hard curing process of arranging in pairs or groups.And one the 4th both alignment layers 335, optionally coat the first area I on second substrate 320.The generation type of the 4th both alignment layers 335 is for example coated the SE-1410 of γ fourth breast ketone dilution with ink-jet method the outer peripheral areas of the 3rd both alignment layers 330 (for example SE-7492).Then, impose a drying process and friction matching technology, make first area I and second area II produce difference the orientation of liquid crystal molecule.The 3rd both alignment layers 330 respectively provides different orientation of liquid crystal layer and tilt angle (be denoted as angle A and angle D, angle A and angle D can be similar and different) with the 4th both alignment layers 3350.According to a preferred embodiment of the present invention, the generation type of the 3rd both alignment layers 330 and the 4th both alignment layers 335 comprises with printing or ink-jet method and is formed at second area II and first area I on second substrate 320 respectively.
Fig. 6 E is the diagrammatic cross-section that shows according to optical compensation curved arrange type (OCB) LCD of fifth embodiment of the invention.See also Fig. 6 E, its structure of OCB type LCD 300e of fifth embodiment of the invention and the OCB type LCD 300b of formation step similar in appearance to second embodiment for simple and clear event, are omitted identical narration at this.Difference is, the 3rd both alignment layers 330, and for example SE-7492 coats on second substrate 320 comprehensively, and the hard roasting and friction matching technology of collocation.And one the 4th both alignment layers 335 ', optionally coat the first area I on the 3rd both alignment layers 330, and expose the 3rd both alignment layers 330 of first area II.The generation type of the 4th both alignment layers 335 ' is for example coated outer peripheral areas on the 3rd both alignment layers 330 (for example SE-7492) with ink-jet method with γ fourth breast ketone.Then, impose a drying process, make first area I and second area II produce difference the orientation of liquid crystal molecule.The 3rd both alignment layers 330 respectively provides different orientation of liquid crystal layer and tilt angle (be denoted as angle A and angle D, angle A and angle D can be similar and different) with the 4th both alignment layers 335 '.
Feature of the present invention and advantage
The invention has the advantages that provides a kind of optical compensation curved arrange type (OpticallyCompensated Bend, be called for short OCB) LCD and manufacture method thereof, use the method that repeatedly is coated with both alignment layers to be means, design different tilt angles and/or multiple regional orientation the LCD framework.According to embodiments of the invention, originally the experience influence of liquid crystal fluid character of OCB type liquid crystal is less, can shorten switching time of oblique exhibition-beam mode by high tilt angle, can speed the response time of display.Moreover, can be according to the different designs function of LCD, will have on the zones of different that the different alignment material coats substrate, form the LCD alignment of multiple field domain, and then improve the character such as visual angle, brightness, contrast and aperture opening ratio of display.
Though the present invention discloses as above with preferred embodiment; so it is not in order to limit scope of the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the accompanying Claim person of defining.
Claims (57)
1. optical compensation curved arranged LCD comprises:
First substrate is provided with the second substrate subtend, inserts and puts liquid crystal layer therebetween;
First both alignment layers is arranged on this first substrate;
Second both alignment layers is arranged at the second area on this first both alignment layers, and exposes this first both alignment layers on the first area; And
The 3rd both alignment layers is arranged on this second substrate;
Wherein this first both alignment layers respectively provides this liquid crystal layer different tilt angles with this second both alignment layers; And
Wherein when applying an extra electric field, form a double mode transform boundary between this first area and this second area in this optical compensation curved arranged LCD.
2. optical compensation curved arranged LCD as claimed in claim 1, wherein this double mode transform boundary is the oblique transform boundary of exhibition-beam mode.
3. optical compensation curved arranged LCD as claimed in claim 1, wherein this first substrate includes the source component multiple substrate.
4. optical compensation curved arranged LCD as claimed in claim 1, wherein this first substrate comprises the color filter film substrate.
5. optical compensation curved arranged LCD as claimed in claim 4, wherein this color filter film substrate comprises the chromatic filter layer structure and is positioned at the interstructural black photoresistance of this chromatic filter layer matrix.
6. optical compensation curved arranged LCD as claimed in claim 5 also comprises electrode structure on this chromatic filter layer, and this first both alignment layers is positioned on this electrode structure.
7. optical compensation curved arranged LCD as claimed in claim 1, wherein this first area is a pixel region, and this second area is an outer peripheral areas.
8. optical compensation curved arranged LCD as claimed in claim 1, wherein this first area is an outer peripheral areas, and this second area is a pixel region.
9. as claim 7 or 8 described optical compensation curved arranged LCDs, wherein this outer peripheral areas comprises black matrix area, gate line zone, data line zone, active block zone, contact hole zone or slit areas.
10. optical compensation curved arranged LCD as claimed in claim 1, wherein this first area is the part of pixel region, and this second area is another part of this pixel region.
11. optical compensation curved arranged LCD as claimed in claim 1, wherein this first both alignment layers is to this liquid crystal layer tool vertical orientation, becomes 75～90 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～15 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
12. optical compensation curved arranged LCD as claimed in claim 1, wherein this first both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～10 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～9 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
13. optical compensation curved arranged LCD as claimed in claim 1, wherein this first both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～7 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～4 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
14. optical compensation curved arranged LCD as claimed in claim 1, wherein this first both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
15. optical compensation curved arranged LCD as claimed in claim 1, wherein this second both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
16. optical compensation curved arranged LCD as claimed in claim 1, wherein the 3rd both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
17. optical compensation curved arranged LCD as claimed in claim 1, wherein this second both alignment layers comprises an organic solvent.
18. optical compensation curved arranged LCD as claimed in claim 17, wherein this organic solvent comprises ethanol (ethanol), isopropyl alcohol (isopropanol), n-methyl arsenic noise made in coughing or vomiting alkane ketone (n-methylpyrrolidone), 3-methylphenol (m-cresol), γ fourth lactones (γ-butyrolactone), n, n-dimethyl acetamide (n, n-dimethylacetamide), dimethyl formamide (n, n-dimethylformamide), ethylene glycol monobutyl ether (ethylene glycol monobutyl ether) or diethylene glycol monobutyl ether (diethylene glycolmonobutyl ether).
19. an optical compensation curved arranged LCD comprises:
First substrate is provided with the second substrate subtend, inserts and puts liquid crystal layer therebetween;
First both alignment layers is arranged on this first substrate;
Second both alignment layers is arranged at the second area on this first both alignment layers, and exposes this first both alignment layers on the first area;
The 3rd both alignment layers is arranged on this second substrate; And
The 4th both alignment layers is arranged at the second area on the 3rd both alignment layers, and exposes the 3rd both alignment layers on the first area;
Wherein this first both alignment layers respectively provides different tilt angle of this liquid crystal layer and the 3rd both alignment layers and the 4th both alignment layers respectively to provide this liquid crystal layer different tilt angles with this second both alignment layers; And
Wherein when applying an extra electric field, form a double mode transform boundary between this first area and this second area in this optical compensation curved arranged LCD.
20. optical compensation curved arranged LCD as claimed in claim 19, wherein this double mode transform boundary is the oblique transform boundary of exhibition-beam mode.
21. optical compensation curved arranged LCD as claimed in claim 19, wherein this first substrate includes the source component multiple substrate.
22. optical compensation curved arranged LCD as claimed in claim 19, wherein this first substrate comprises the color filter film substrate.
23. optical compensation curved arranged LCD as claimed in claim 22, wherein this color filter film substrate comprises that the chromatic filter layer structure reaches at the interstructural black photoresistance of this chromatic filter layer matrix.
24. optical compensation curved arranged LCD as claimed in claim 23 also comprises electrode structure, be positioned on this chromatic filter layer, and this first both alignment layers is positioned on this electrode structure.
25. optical compensation curved arranged LCD as claimed in claim 19, wherein this first area is a pixel region, and this second area is an outer peripheral areas.
26. optical compensation curved arranged LCD as claimed in claim 19, wherein this first area is an outer peripheral areas, and this second area is a pixel region.
27. as claim 25 or 26 described optical compensation curved arranged LCDs, wherein this outer peripheral areas comprises black matrix area, gate line zone, data line zone, active block zone, contact hole zone or slit areas.
28. optical compensation curved arranged LCD as claimed in claim 19, wherein this first area is the part of pixel region, and this second area is another part of this pixel region.
29. optical compensation curved arranged LCD as claimed in claim 19, wherein this first both alignment layers is to this liquid crystal layer tool vertical orientation, becomes 75～90 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～15 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
30. optical compensation curved arranged LCD as claimed in claim 19, wherein this first both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～10 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～9 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
31. optical compensation curved arranged LCD as claimed in claim 19, wherein this first both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～7 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～4 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
32. optical compensation curved arranged LCD as claimed in claim 19, wherein this first both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
33. optical compensation curved arranged LCD as claimed in claim 19, wherein this second both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
34. optical compensation curved arranged LCD as claimed in claim 19, wherein the 3rd both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
35. optical compensation curved arranged LCD as claimed in claim 19, wherein the 4th both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
36. optical compensation curved arranged LCD as claimed in claim 19, wherein this second both alignment layers comprises organic solvent.
37. optical compensation curved arranged LCD as claimed in claim 36, wherein this organic solvent comprises ethanol (ethanol), isopropyl alcohol (isopropanol), n-methyl arsenic noise made in coughing or vomiting alkane ketone (n-methylpyrrolidone), 3-methylphenol (m-cresol), γ fourth lactones (γ-butyrolactone), n, n-dimethyl acetamide (n, n-dimethylacetamide), dimethyl formamide (n, n-dimethylformamide), ethylene glycol monobutyl ether (ethylene glycol monobutyl ether) or diethylene glycol monobutyl ether (diethylene glycolmonobutyl ether).
38. the manufacture method of an optical compensation curved arranged LCD comprises:
First substrate is provided, has electrode structure on it;
Be coated with first both alignment layers on this first substrate;
Spray the second area of cloth second both alignment layers on this first both alignment layers with ink-jet method, and expose this first both alignment layers on the first area;
Be coated with the 3rd both alignment layers on second substrate; And
Subtend makes up this first substrate and this second substrate, and perfusion liquid crystal layer therebetween;
Wherein this first both alignment layers respectively provides this liquid crystal layer different tilt angles with this second both alignment layers; And
Wherein when applying an extra electric field, form a double mode transform boundary between this first area and this second area in this optical compensation curved arranged LCD.
39. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this double mode transform boundary is the oblique transform boundary of exhibition-beam mode.
40. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this first both alignment layers is with roll printing method, method of spin coating, spills the cloth rubbing method or the ink-jet application method is coated on this substrate.
41. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38 wherein after this first both alignment layers is coated on this substrate, also comprises a soft roasting program.
42. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38 wherein after this first both alignment layers is coated on this substrate, also comprises a soft roasting program and a hard roasting program.
43. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this second both alignment layers is with print process, spills the cloth rubbing method or the ink-jet application method is coated on this first both alignment layers.
44. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38 wherein after this second both alignment layers spray is distributed on this first both alignment layers, also comprises a soft roasting program and a hard roasting program.
45. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this first area is a pixel region, and this second area is an outer peripheral areas.
46. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this first area is an outer peripheral areas, and this second area is a pixel region.
47. as the manufacture method of claim 45 or 46 described optical compensation curved arranged LCDs, wherein this outer peripheral areas comprises black matrix area, gate line zone, data line zone, active block zone, contact hole zone or slit areas.
48. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this first area is the part of pixel region, and this second area is another part of this pixel region.
49. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this first both alignment layers is to this liquid crystal layer tool vertical orientation, becomes 75～90 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～15 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
50. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this first both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～10 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～9 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
51. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this first both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～7 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this first both alignment layers; And wherein this second both alignment layers is to this liquid crystal layer tool horizontal direction matching, becomes 0～4 ° tilt angle between the long axis direction that makes the liquid crystal molecule in this liquid crystal layer and this second both alignment layers.
52. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this first both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
53. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this second both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
54. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein the 3rd both alignment layers comprises polyvinyl alcohol (PVA), polyimide, polyamide, polyureas, nylon, silicon dioxide or lecithin.
55. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38, wherein this second both alignment layers comprises organic solvent.
56. the manufacture method of optical compensation curved arranged LCD as claimed in claim 55, wherein this organic solvent comprises ethanol (ethanol), isopropyl alcohol (isopropanol), n-methyl arsenic noise made in coughing or vomiting alkane ketone (n-methyl pyrrolidone), 3-methylphenol (m-cresol), γ-Ding lactones (γ-butyrolactone), n, n-dimethyl acetamide (n, n-dimethylacetamide), dimethyl formamide (n, n-dimethylformamide), ethylene glycol monobutyl ether (ethylene glycol monobutyl ether) or diethylene glycol monobutyl ether (diethylene glycol monobutyl ether).
57. the manufacture method of optical compensation curved arranged LCD as claimed in claim 38 also comprises with the second area of ink-jet method spray cloth the 4th both alignment layers on the 3rd both alignment layers, and exposes the 3rd both alignment layers on the first area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101723130A CN101211059A (en) | 2006-12-30 | 2006-12-30 | Optical compensation curved arranged LCD and making method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006101723130A CN101211059A (en) | 2006-12-30 | 2006-12-30 | Optical compensation curved arranged LCD and making method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513468A (en) * | 2012-06-14 | 2014-01-15 | 群康科技(深圳)有限公司 | Display panel and forming method thereof and display system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513468A (en) * | 2012-06-14 | 2014-01-15 | 群康科技(深圳)有限公司 | Display panel and forming method thereof and display system |
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