CN1949062B - Liquid crystal display panel and manufacture method thereof - Google Patents
Liquid crystal display panel and manufacture method thereof Download PDFInfo
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- CN1949062B CN1949062B CN200510113470XA CN200510113470A CN1949062B CN 1949062 B CN1949062 B CN 1949062B CN 200510113470X A CN200510113470X A CN 200510113470XA CN 200510113470 A CN200510113470 A CN 200510113470A CN 1949062 B CN1949062 B CN 1949062B
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Abstract
The invention supplies one liquid crystal display panel. It includes one base plate, one opposite base plate, one liquid crystal stationary layer, and one liquid crystal layer. The liquid crystal stationary layer is set at the base plate. Its surface has many convex matters of which height is between 10nm and 200nm; maximum breadth is almost between 150nm and 600nm. In addition, the liquid crystal layer is sealed between the base plate and the opposite base plate. The invention also supplies the liquid crystal display panel manufacturing method.
Description
[technical field]
The invention relates to a kind of display panel and manufacturing approach thereof, and particularly relevant for a kind of display panels and manufacturing approach thereof.
[prior art]
Along with the significantly progressive and internet of computing power, the high development of multimedia technology, the transmission of image information at present transfers digital transmission to by simulation mostly.In addition, in order to cooperate modern life pattern, it is frivolous that the volume of video signal or device for image also day by day is tending towards.Traditional cathode-ray tube (CRT) though still have its advantage, because the structure in internal electron chamber, makes that display is bulky and takes up space, and it still has radiant rays to hinder problems such as eye when showing.Therefore; The plane formula display panel (flat panel display) that cooperates photoelectric technology and semiconductor fabrication to be developed; For example LCD (liquid crystal display), OLED (Organic light-emittingdisplay) or plasma scope (Plasma Display Panel; PDP) etc., become the main flow of display product gradually.
Fig. 1 illustrates the diagrammatic cross-section into existing display panels.Please with reference to Fig. 1, aspect LCD, available liquid crystal display panel 100 mainly comprises a subtend substrate 110, a substrate 120, a both alignment layers 130, a both alignment layers 140 and a liquid crystal layer 150.In addition, both alignment layers 130 is to be disposed on the subtend substrate 110, and both alignment layers 140 then is disposed on the substrate 120, and wherein both alignment layers 130 and 140 material are the material of polyamide class (polyimide).In addition, 150 of liquid crystal layers are sealed between subtend substrate 110 and the substrate 120.
When an electrical potential energy is formed between subtend substrate 110 and the substrate 120, the liquid crystal molecule of liquid crystal layer 150 just can receive this electrical potential energy intensity influence and produce deflection, make display panels 100 have light penetration rate corresponding to this voltage.Thus, display panels 100 just can be big or small according to the electrical potential energy between subtend substrate 110 and the substrate 120, and show the different gray levels picture.
Effect that it should be noted that both alignment layers 130 and 140 mainly is to provide the stable boundary condition of liquid crystal molecule of liquid crystal layer 150 so that liquid crystal molecule along specific preface to arrangement.But because existing both alignment layers 130 and 140 has its material and structural restriction, so the both alignment layers 130 of prior art and 140 can't surely be positioned at the liquid crystal molecule of liquid crystal layer 150 boundaries effectively.
Be with when applying an electrical potential energy between substrate 120 and subtend substrate 110 time, such phenomenon just causes the reaction velocity of liquid crystal molecule comparatively slow easily.Thus, when display panels 100 when showing a continuous pictures, just be easy to generate the discontinuous or slack situation of other display effect of picture.In addition, except the problem of reaction velocity, liquid crystal molecule is also unstable because of boundary condition easily, and the situation of yawing moment mistake takes place under the influence of electrical potential energy, and then causes the reduction of display panels 100 picture qualities.To this problem, in United States Patent (USP) case numbers 6,043,860, a kind of method that reduces the stabilization time of liquid crystal molecule is proposed just.The method mainly is via the mode of in liquid crystal layer 150, adding monomer (monomer), comes surely to be positioned at the liquid crystal molecule of liquid crystal layer 150 boundaries, and accelerates the reaction velocity of liquid crystal molecule.
In addition, except the slow partially problem of the reaction rate of above-mentioned liquid crystal molecule, aspect the angle of visibility scope that promotes display panels 100, prior art also faces technical bottleneck.For example, both alignment layers 130 and 140 needs to handle via friction (rubbing) repeatedly usually, just can make the liquid crystal molecule of liquid crystal layer 150 produce multidirectional orientation effect.Yet so not only orientation effect of the practice is limited, and its manufacturing process is also comparatively complicated, and the manufacturing process yield is also on the low side.
Except making the liquid crystal molecule of liquid crystal layer 150 produce outside multidirectional orientation effect via friction treatment repeatedly, prior art can also directly change the daylighting alignment materials with the material of both alignment layers 130 and 140.Yet such practice not only need be considered outside the stability of light alignment materials, and the required exposure sources of manufacturing process is also expensive and complicated completely.
Moreover; Prior art more can through because form protruding (protrusion) on the both alignment layers 130,140, above-mentioned convexity and slit were gone up or adopted simultaneously to the slit (slit) that forms patterning at the pixel electrode (not illustrating) of substrate 120 design so that the liquid crystal molecule of liquid crystal layer 150 produces multidirectional orientation effect.Yet such practice but need increase extra light shield manufacturing process, and then causes the increase of manufacturing process cost, and the decline of yield.
[summary of the invention]
In view of this, the object of the invention is exactly that a kind of display panels and liquid crystal indicator with comparatively stable and preferable LCD alignment effect is being provided.
Another object of the present invention is that a kind of manufacturing approach of display panels is being provided, in order to provide the liquid crystal molecule in the liquid crystal layer comparatively stable and preferable orientation effect.
The present invention proposes a kind of manufacturing approach of display panels, and its step comprises provides 1 substrate earlier, on this substrate, forms a liquid crystal afterwards and stablizes material layer.Then, this liquid crystal is stablized material layer shine a light, become a liquid crystal resistant strata so that liquid crystal is stablized material layer, wherein the top layer of liquid crystal resistant strata has a plurality of protrusions, and the geometry external form (profile) of these protrusions is the exposure intensity corresponding to light.Then, a subtend substrate is provided, and a liquid crystal layer is sealed between substrate and the subtend substrate.
The present invention more proposes the manufacturing approach of another kind of display panels, and its step comprises provides a substrate earlier, on this substrate, forms a liquid crystal afterwards and stablizes material layer.Then, a subtend substrate is provided, and on this subtend substrate, forms a both alignment layers.Then, a liquid crystal layer is sealed between substrate and the subtend substrate.And, liquid crystal is stablized material layer shine a light, so that stablizing material layer, liquid crystal becomes a liquid crystal resistant strata, wherein the top layer of liquid crystal resistant strata has a plurality of protrusions, and the geometry external form of these protrusions system is corresponding to the exposure intensity of light.
In the manufacturing approach of above-mentioned display panels, after forming a liquid crystal on the substrate and stablizing material layer, and before liquid crystal is stablized the material layer irradiation light, for example comprise more that dry liquid crystal stablizes material layer.In addition, after the formation liquid crystal is stablized material layer, and before liquid crystal is stablized the material layer irradiation light, for example comprise more a pressing mold is provided that wherein the top layer of pressing mold has a raised design, stablizes material layer and raised design is needed on liquid crystal.
In the manufacturing approach of above-mentioned display panels, for example more be included on the subtend substrate and form liquid crystal and stablize material layer.
In the manufacturing approach of above-mentioned display panels, the method that the formation liquid crystal is stablized material layer for example is to utilize a scraper or transfer printing wheel that liquid crystal is stablized coated materials on substrate.
In addition, the present invention proposes the manufacturing approach of another kind of display panels again, and its step comprises provides a substrate and a subtend substrate earlier.Afterwards, a liquid crystal compound is provided, it comprises a liquid crystal material and a liquid crystal stabilizing material.Then; Liquid crystal compound is sealed between substrate and the subtend substrate, and liquid crystal compound is shone a light, with intersection at liquid crystal compound and substrate; And at the intersection of liquid crystal compound and subtend substrate; Form a liquid crystal resistant strata respectively, wherein the top layer of liquid crystal resistant strata has a plurality of protrusions, and the geometry external form of these protrusions system is corresponding to the exposure intensity of light.
In the manufacturing approach of above-mentioned display panels, before forming the liquid crystal resistant strata, for example can on substrate or subtend substrate, form a both alignment layers respectively.
In the manufacturing approach of above-mentioned display panels, the height of protrusion for example be between 10 how rice to 200 how between the rice.In addition, the breadth extreme of protrusion for example be between 150 how rice to 600 how between the rice.
In the manufacturing approach of above-mentioned display panels, employed light for example is ultraviolet light.
In the manufacturing approach of above-mentioned display panels, liquid crystal is stablized the material of material layer for example suc as formula shown in (1).
Formula (1):
Wherein,
B, B ' comprise aromatic series (aromatic) or saturated rings alkane (saturated ring core);
X, Y comprise terminal base (terminal group) or reactive group (reactive group);
R, R ', R " be crosslinked (linkage) between the loop systems (ring system); And
Z, Z ' are side chain substituents (lateral substituent).
In the manufacturing approach of above-mentioned display panels, reactive group for example is a reactive group of drawing together acrylic acid (acrylic), epoxy resin (epoxy) or other kind, and crosslinked between loop systems for example is alkyl structure (alkyl structure).
In the manufacturing approach of above-mentioned display panels, the material that this liquid crystal is stablized material layer for example is:
or
The present invention reintroduces a kind of display panels, and it comprises a substrate, a subtend substrate, a liquid crystal resistant strata and a liquid crystal layer.The liquid crystal resistant strata is disposed on the substrate, and wherein the surface of liquid crystal resistant strata has a plurality of protrusions.Liquid crystal layer is sealed between substrate and the subtend substrate.
The present invention more proposes to comply with kind of liquid crystal indicator, and it comprises a display panels and a backlight assembly.Wherein display panels comprises a substrate, a subtend substrate, a liquid crystal resistant strata and a liquid crystal layer.The liquid crystal resistant strata is disposed on the substrate, and wherein the surface of liquid crystal resistant strata has a plurality of protrusions.Liquid crystal layer is sealed between substrate and the subtend substrate.And backlight assembly is adjacent to the substrate configuration.
In display panels of the present invention and liquid crystal indicator, the height of protrusion for example be in 10 how rice to 200 how between the rice.In addition, the breadth extreme of protrusion for example be between 150 how rice to 600 how between the rice.
In display panels of the present invention and liquid crystal indicator, liquid crystal is stablized the material of material layer for example suc as formula shown in (1).
Formula (1):
Wherein,
B, B ' comprise aromatic series or saturated rings alkane (saturated ring core);
X, Y comprise terminal base or reactive group;
R, R ', R " be crosslinked between the loop systems; And
Z, Z ' are side chain substituents.
In display panels of the present invention and liquid crystal indicator, reactive group for example is the reactive group of acrylic acid, epoxy resin or other kind, and crosslinked between loop systems for example is alkyl structure.
In display panels of the present invention and liquid crystal indicator, the material that liquid crystal is stablized material layer for example is:
or
In display panels of the present invention and liquid crystal indicator, for example optionally be formed with another a liquid crystal resistant strata or a both alignment layers on the subtend substrate.Certainly, also can have both alignment layers and liquid crystal resistant strata simultaneously on the subtend substrate, wherein these orientation series of strata are between liquid crystal resistant strata and subtend substrate.
In display panels of the present invention and liquid crystal indicator, for example optionally dispose a both alignment layers on the substrate, it is between substrate and liquid crystal resistant strata.
In display panels of the present invention and liquid crystal indicator, the liquid crystal resistant strata for example has a raised design.
The present invention comes surely to be positioned at the liquid crystal molecule of liquid crystal layer and liquid crystal resistant strata intersection because of adopting the liquid crystal resistant strata, comes the stabilizing liquid crystal molecule with the protrusion through the how meter level on the liquid crystal resistant strata, and preferable orientation effect is provided.Therefore, compared to knowing technology, the liquid crystal molecule in the liquid crystal layer of the present invention has the short response time.In addition, the present invention more can look actual the geometry external form that demand is adjusted protrusion, makes liquid crystal molecule have different tilt angle (pre-tilt angle).
For let above and other objects of the present invention, feature and advantage can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows.
[description of drawings]
Fig. 1 illustrates the diagrammatic cross-section into existing display panels.
Fig. 2 A～2D illustrates the schematic flow sheet into the manufacturing approach of the display panels of preferred embodiment of the present invention.
Fig. 2 E illustrates on substrate, forming the synoptic diagram that liquid crystal is stablized material layer through scraper.
Fig. 3 illustrates the enlarged diagram into a preferred embodiment protrusions thing of the present invention.
Fig. 4 illustrates the enlarged diagram into the intersection of Fig. 2 D protrusions thing and liquid crystal layer.
Fig. 5 A～5B illustrates the synoptic diagram that receives the protrusion influence of different geometric external form for the tilt angle of liquid crystal molecule.
Fig. 6 A～Fig. 6 B illustrates to form the synoptic diagram of the protrusion of different external forms through the composition that changes protrusion.
Fig. 6 C illustrates to form the synoptic diagram of the protrusion of different external forms through the exposure intensity that changes light.
Fig. 7 A～Fig. 7 C illustrates the schematic diagram of fabrication technology that on the liquid crystal resistant strata, forms raised design in the display panels manufacturing process.
Fig. 8 A～Fig. 8 C illustrates the synoptic diagram into the display panels of other multiple different kenels of preferred embodiment of the present invention.
Fig. 9 A～9C illustrates the manufacturing process synoptic diagram into another kind of display panels of the present invention.
Figure 10 A illustrates the synoptic diagram into the display panels that passes through formed multiple other the different kenels of other type with Figure 10 B.
Figure 11 illustrates the synoptic diagram into the liquid crystal indicator of preferred embodiment of the present invention.
[embodiment]
Fig. 2 A～2D illustrates the schematic flow sheet into the manufacturing approach of the display panels of preferred embodiment of the present invention.At first,, a substrate 210 is provided, and a liquid crystal is stablized material layer 220 is formed on the substrate 210 please with reference to Fig. 2 A.In the present embodiment; The mode that the formation liquid crystal is stablized material layer 220 for example is earlier liquid crystal to be stablized droplets of material on transfer printing wheel 300; And then utilize relatively move (shown in the direction 350) between transfer printing wheel 300 and the substrate 210, stablize material layer 220 and on substrate 210, form liquid crystal with suitable thickness.
In addition, utilize transfer printing wheel 300 to form liquid crystal to stablize the material layer 220, in other embodiments of the invention, more can form above-mentioned liquid crystal and stablize material layer 220 except above-mentioned through alternate manner.For example; Fig. 2 E promptly illustrates on substrate 210, forming the synoptic diagram that liquid crystal is stablized material layer 220 through scraper 310; It for example is through a scraper 310, makes it along direction 355 and substrate 210 relative motions, stablizes material layer 220 on substrate 210 and form the liquid crystal with suitable thickness.
Then, shown in Fig. 2 B, after liquid crystal being stablized material layer 220 and being formed at substrate 210, for example can stablize material layer 220 and carry out drying liquid crystal.In a preferred implementation, for example can be formed with liquid crystal stablize the substrate 210 of material layer 220 insert a temperature between Celsius 50～200 the degree between environment in toast (baking), stablize material layer 220 with dry liquid crystal.
Then,, with a light 320 irradiating liquid crystal stabilizing material layers 220, make liquid crystal stablize material layer 220 and change the liquid crystal resistant strata into that wherein light 320 for example can be ultraviolet light, and liquid crystal is stablized the material composition of material layer 220 suc as formula shown in (1) please with reference to Fig. 2 C.
Formula (1):
Wherein,
B, B ' for example comprise aromatic series or saturated rings alkane (saturated ring core);
X, Y for example comprise terminal base or reactive group, and wherein reactive group can be the reactive group of acrylic acid, epoxy resin or other kind;
R, R ', R " for example be crosslinked between the loop systems, the crosslinked alkyl structure that comprises between loop systems wherein; And
Z, Z ' are side chain substituents.
For example, liquid crystal stablize material layer 220 material for example can for:
After liquid crystal was stablized material layer 220 and changed liquid crystal resistant strata 230 into, how meter-sized the surface of liquid crystal resistant strata 230 can form a plurality of protrusion 230a, its physical dimension about tens of how rice between hundreds of how rice.Please with reference to Fig. 3, it illustrates in the preferred embodiment of the present invention, the enlarged diagram of protrusion 230a.As shown in Figure 3, protrusion 230a for example is taper, its height h for example between 10 how rice to 100 how between the rice, and the breadth extreme w of protrusion 230a for example between 150 how rice to 600 how between the rice.
Though it should be noted that the geometry external form of protrusion 230a is a taper in the present embodiment, be familiar with the material that this art should be stablized material layer 220 according to different liquid crystal, and form the protrusion 230a of different how much external forms.
Afterwards, please with reference to Fig. 2 D, a subtend substrate 240 is provided, and on subtend substrate 240, forms a both alignment layers 250, wherein the material of both alignment layers for example is the material of polyamide class.Afterwards; One liquid crystal layer 260 is sealed between substrate 210 and the subtend substrate 240; To form display panels 200a, wherein the material of liquid crystal layer 260 for example is the liquid crystal material of nematic (nematic) liquid crystal, twist nemaatic mode (cholesteric) liquid crystal or other kind.
In addition, though the foregoing description is before 240 groups of substrate 210 and subtend substrates are stood, just the liquid crystal on the substrate 210 is stablized material layer 220 irradiations, to form liquid crystal resistant strata 230 (shown in Fig. 2 C).Yet, in another preferred embodiments, for example more can, 240 groups of substrate 210 and subtend substrates liquid crystal material layer 220 be shone establish light 320 again after stood, so that stablizing material layer 220, liquid crystal changes liquid crystal resistant strata 230 into.
Fig. 4 illustrates the enlarged diagram into the intersection of Fig. 2 D protrusions thing 230a and liquid crystal layer 260.Please with reference to Fig. 4; Because the size of the physical dimension of protrusion 230a system meter level for how; And intersection at protrusion 230a and liquid crystal layer 260; The molecular structure on protrusion 230a surface can form stable structure jointly with near liquid crystal molecule, so the protrusion 230a of present embodiment has the function of stabilizing liquid crystal molecule and stabilizing liquid crystal molecule rotation direction.
What deserves to be mentioned is that the protrusion 230a on the above-mentioned liquid crystal resistant strata 230 more can provide liquid crystal molecule one tilt angle, to reach wide-visual angle effect except can the stabilizing liquid crystal molecule.Please with reference to Fig. 5 A and 5B, it illustrates the synoptic diagram that receives the protrusion influence of different geometric external form for the tilt angle of liquid crystal molecule respectively.The h/w value system of the protrusion 230a that Fig. 5 A is illustrated is less than h '/w ' value of the protrusion 230a ' shown in Fig. 5 B.Thus, if when the tilt angle of liquid crystal molecule 262 is defined as the main shaft of liquid crystal molecule and the angle of horizontal direction (shown in Fig. 5 A), just then the tilt angle of liquid crystal molecule 262 can be greater than the tilt angle of liquid crystal molecule 262 ' among Fig. 5 B among Fig. 5 D '.In other words, just present embodiment can be through utilizing geometry external form (profile) (like the h/w value) of adjustment protrusion 230a, provide different liquid crystal to stablize and the effect of orientation.
The method of the geometry external form of above-mentioned change protrusion 230a will be in hereinafter illustrating.
Fig. 6 A～Fig. 6 B illustrates to form the synoptic diagram of the protrusion of different external forms through the composition that changes protrusion.Please with reference to Fig. 6 A, present embodiment for example can be adjusted the geometry external form of protrusion 230a through whether removing suc as formula the reactive group X in the liquid crystal stabilizing material shown in (1).For example, when the liquid crystal stabilizing material shown in the formula (1) did not have reactive group X, the h/w value of formed protrusion 230a can be less than the h '/w ' value with formed protrusion 230a in the reactive group X.In addition, please with reference to Fig. 6 B, present embodiment for example can also be through adjustment suc as formula crosslinked R ' or the R between the loop systems in the liquid crystal stabilizing material shown in (1) " chain length, adjust the geometry external form of protrusion 230a.For example, crosslinked R ' and the R in the liquid crystal stabilizing material shown in the formula (1) " be-(CH
2)
6In-time, the h/w value meeting of formed protrusion 230a is less than crosslinked R ' and R " be short-(CH of chain length
2)
3In-time,, h '/w ' of pairing protrusion 230a was worth.
Certainly, except the composition structure of the liquid crystal stabilizing material shown in the adjustment (1), present embodiment can also be adjusted the geometry external form of protrusion 230a through changing the composition of liquid crystal stabilizing material.For example, when the reactive group X of the liquid crystal stabilizing material shown in the formula (1) or Y were acrylic acid, when reactive group X or Y were epoxy resin in formula (1), its formed protrusion 230a was with having the different geometric external form respectively.
In addition, if come irradiating liquid crystal stabilizing material layer 220 with the light of varying strength, the protrusion 230a on the then formed liquid crystal resistant strata 230 also with the different geometric external form arranged.Fig. 6 C illustrates to form the synoptic diagram of the protrusion of different external forms through the exposure intensity that changes light.Shown in Fig. 6 C, when the intensity of the light that is shone 320 was strong, the h/w value of formed protrusion 230a will be less than the h/w value of shining formed protrusion 230a by the more weak light 320 of intensity.
Based on above-mentioned, the present invention for example can adjust the geometry external form of protrusion 230a (like the h/w value) through the modes such as composition that change irradiation intensity, liquid crystal stabilizing material.Certainly, in other embodiments of the invention, more for example can reach identical purpose through the variation of manufacturing process temperature or other fabrication process parameters, give unnecessary details no longer one by one at this.
In addition, in order to strengthen the orientation effect of liquid crystal resistant strata 230, the present invention more can form a raised design on liquid crystal resistant strata 230 except the geometry external form that can adjust protrusion 230a.Please with reference to Fig. 7 A～Fig. 7 C, it illustrates in the display panels manufacturing process, on the liquid crystal resistant strata, forms the schematic diagram of fabrication technology of raised design.In the manufacturing process of aforesaid display panels 200a; Liquid crystal is stablized material layer 220 be formed at substrate 210 after (Fig. 2 B); And liquid crystal is being stablized before material layer 220 irradiation light 320, present embodiment for example more can provide a pressing mold 330 earlier shown in Fig. 7 A; And pressing mold 330 is moved along direction 360, and wherein the surface of pressing mold 330 has a raised design 332.Afterwards, shown in Fig. 7 B,, pressing mold 332 is pressed on liquid crystal stablizes on the material layer 220, stablize on the material layer 220 so that the raised design on the pressing mold 330 332 is transferred to liquid crystal with a predetermined pressure.Then, shown in Fig. 7 C, remove pressing mold 330, and with light 320 irradiating liquid crystal stabilizing material layers 220, and obtain having the liquid crystal resistant strata 230 of raised design 332.This liquid crystal resistant strata 230 with raised design 332 can provide better LCD alignment effect, and further improve the angle of visibility scope of display panels 200a.
In addition; The display panels 200a of present embodiment is except forming liquid crystal resistant strata 230 on substrate 210; And forming on the subtend substrate 240 outside the both alignment layers 250, more for example can pass through the collocation of liquid crystal resistant strata and both alignment layers, and form the display panels of multiple different kenels.Fig. 8 A～Fig. 8 C illustrates the synoptic diagram into the display panels of other multiple different kenels of preferred embodiment of the present invention.
Please with reference to Fig. 8 A; In the manufacturing process of above-mentioned manufacturing display panels 200a; The configuration of both alignment layers 250 more can be formed at another liquid crystal resistant strata 235 on the subtend substrate 240 except can be shown in Fig. 2 D, to replace the both alignment layers 250 among Fig. 2 D; Make display panels 200b on substrate 210, have liquid crystal resistant strata 230, on subtend substrate 240, have liquid crystal resistant strata 235.
In addition; Please with reference to Fig. 8 B; Present embodiment more can form another both alignment layers 255 on substrate 210, so that display panels 200c has both alignment layers 255 and liquid crystal resistant strata 230 on substrate 210 before the formation liquid crystal is stablized material layer 230; On subtend substrate 240, have both alignment layers 250, wherein both alignment layers 255 is disposed between liquid crystal resistant strata 230 and the substrate 210.200c
In addition; Please with reference to Fig. 8 C; Present embodiment more for example can be earlier respectively at forming both alignment layers 255 and 250 respectively on substrate 210 and the subtend substrate 240; Form liquid crystal resistant strata 230 and 235 afterwards more respectively on these two both alignment layers 250,, on subtend substrate 240, have both alignment layers and liquid crystal resistant strata 235 so that display panels 200d has both alignment layers 255 and liquid crystal resistant strata 230 on substrate 210; Wherein both alignment layers 255 is between liquid crystal resistant strata 230 and substrate 210, and both alignment layers 250 is between liquid crystal resistant strata 235 and subtend substrate 240.
It should be noted that; Though in Fig. 2 D and Fig. 8 A; The liquid crystal resistant strata 230 of individualism and 255 can make the liquid crystal molecule of liquid crystal layer 230 reach stable orientation state, and the display panels of still working as present embodiment is shown in Fig. 8 B, when being disposed at both alignment layers 255 between liquid crystal resistant strata 230 and the substrate 210; Or shown in Fig. 8 C; Both alignment layers 255 is disposed between liquid crystal resistant strata 230 and the substrate 210, and when being disposed at both alignment layers 250 between liquid crystal resistant strata 235 and the subtend substrate 240, the liquid crystal resistant strata of Fig. 8 B and Fig. 8 C and the iterative structure of both alignment layers can make the liquid crystal molecule of liquid crystal layer 230 reach stable orientation state more quickly.
In addition; Though the display panels 200a of Fig. 2 D and the display panels 200b of Fig. 8 A can't shorten the time that liquid crystal molecule reaches steady state (SS) via the iterative structure of liquid crystal resistant strata and both alignment layers; But present embodiment can apply an electrical potential energy between the substrate 210 of Fig. 2 D and Fig. 8 A and subtend substrate 240, so that the liquid crystal molecule of liquid crystal layer 230 can reach stable orientation state more quickly.Certainly; Present embodiment more can be in Fig. 8 B and Fig. 8 C; Between substrate 210 and subtend substrate 240, apply an electrical potential energy, make the liquid crystal molecule of liquid crystal layer 230 receive simultaneously this electrical potential energy and liquid crystal resistant strata and both alignment layers iterative structure influence and reach stable orientation state more quickly.
Except the above-mentioned liquid crystal stabilizing material that on substrate or subtend substrate, applies; Outside the mode that forms the liquid crystal resistant strata; The present invention more for example can directly mix the liquid crystal stabilizing material in liquid crystal layer, treat panel sets upright after again in the intersection formation liquid crystal resistant strata of liquid crystal layer and substrate (or subtend substrate).
Fig. 9 A～9C illustrates the manufacturing process synoptic diagram into another kind of display panels of the present invention.Please with reference to Fig. 9 A, a substrate 210 and liquid crystal compound 270 are provided at first, wherein liquid crystal compound 270 mainly is to be mixed by liquid crystal material and liquid crystal stabilizing material, and wherein the material of liquid crystal stabilizing material is suc as formula shown in (1).Afterwards, (one drop fill ODF) is formed at liquid crystal compound 270 on the substrate 210 for example to utilize the liquid crystal drop laxative remedy.
Please, a subtend substrate 240 is provided, and liquid crystal compound 270 is sealed between substrate 210 and the subtend substrate 240 with reference to Fig. 7 B.Afterwards; Shown in Fig. 7 C; Utilize the liquid crystal compound 270 of light 320 irradiations between substrate 210 and subtend substrate 240; With the intersection between liquid crystal compound 270 and substrate 210, and the intersection between liquid crystal compound 270 and the subtend substrate 240 forms liquid crystal resistant strata 230 and 235 respectively, and obtains a display panels 200e.
In above-mentioned display panels 200e; On substrate 210 and the subtend substrate 240 except can having liquid crystal resistant strata 230 and 235; More for example can have both alignment layers respectively; It is to be disposed between substrate 210 and the liquid crystal resistant strata 230 or between subtend substrate 240 and the liquid crystal resistant strata 235, and Figure 10 A and Figure 10 B illustrate the synoptic diagram into the display panels through formed multiple other the different kenels of this mode.
Please with reference to Figure 10 A; In the manufacturing process of above-mentioned display panels 200f, present embodiment for example more can with 270 of liquid crystal compounds before on the substrate 210, on substrate 210, form a both alignment layers 255; So that display panels 200f is when accomplishing; Have both alignment layers 255 and liquid crystal resistant strata on the substrate 210, and have liquid crystal resistant strata 235 on the subtend substrate 240, wherein both alignment layers 255 is disposed between liquid crystal resistant strata 230 and the substrate 210.
In addition; Please with reference to Figure 10 B; Present embodiment for example can also with 270 of liquid crystal compounds before on the substrate 210, on substrate 210 and subtend substrate 240, form both alignment layers 250 and 255, so that during display panels 200g completion; Have both alignment layers 255 and liquid crystal resistant strata 230 on the substrate 210; Have both alignment layers 250 and liquid crystal resistant strata 235 on the subtend substrate 240, wherein both alignment layers 255 is disposed between liquid crystal resistant strata 230 and the substrate 210, and both alignment layers 250 is disposed between liquid crystal resistant strata 235 and the subtend substrate 240.
It should be noted that; Though in Fig. 9 C; The liquid crystal resistant strata 230 of individualism and 235 can make the liquid crystal molecule of liquid crystal layer 230 reach stable orientation state, and the display panels of still working as present embodiment is shown in Figure 10 A, when being disposed at both alignment layers 255 between liquid crystal resistant strata 230 and the substrate 210; Or shown in Fig. 8 C; Both alignment layers 255 is disposed between liquid crystal resistant strata 230 and the substrate 210, and when being disposed at both alignment layers 250 between liquid crystal resistant strata 235 and the subtend substrate 240, the liquid crystal resistant strata of Figure 10 A and Figure 10 B and the iterative structure of both alignment layers can make the liquid crystal molecule of liquid crystal layer 230 reach stable orientation state more quickly.
In addition; Though the display panels 200e of Fig. 9 C can't shorten the time that liquid crystal molecule reaches steady state (SS) via the iterative structure of liquid crystal resistant strata and both alignment layers; But present embodiment can apply an electrical potential energy between the substrate 210 of Fig. 9 C and subtend substrate 240, so that the liquid crystal molecule of liquid crystal layer 230 can reach stable orientation state more quickly.Certainly; Present embodiment more can be in Figure 10 A and Figure 10 B; Between substrate 210 and subtend substrate 240, apply an electrical potential energy, make the liquid crystal molecule of liquid crystal layer 230 receive simultaneously this electrical potential energy and liquid crystal resistant strata and both alignment layers iterative structure influence and reach stable orientation state more quickly.
After accomplishing above-mentioned display panels 200; Present embodiment more can be shown in figure 11; Backlight assembly 600 is adjacent to substrate 210 configurations, and to form liquid crystal indicator 50, wherein backlight assembly 600 is in order to display panels 200a to be provided suitable intensity backlight.
In sum, liquid crystal resistant strata of the present invention can through how the protrusion of meter level, come stabilizing liquid crystal molecule, stabilizing liquid crystal molecule rotation direction and make the orientation effect of liquid crystal molecule more good.Therefore, compared to existing technologies, display panels proposed by the invention can have the response time than advantages such as short and wide viewing angles.In addition; The present invention more can adjust the geometry external form of the protrusion on the liquid crystal resistant strata through the composition, manufacturing process temperature or other fabrication process parameters that change irradiation intensity, liquid crystal stabilizing material; Therefore the present invention can look actual needs; Adjust the response time and the tilt angle of liquid crystal molecule, make display panels have preferable display effect.
Though the present invention discloses as above with preferred embodiment; Right its is not in order to limit the present invention; Anyly have the knack of this art; Do not breaking away 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 accompanying the claim person of defining.
Claims (9)
1. liquid crystal indicator, it comprises:
One display panels, it comprises:
One substrate;
One subtend substrate;
One liquid crystal resistant strata is disposed on this substrate, and wherein the surface of this liquid crystal resistant strata has most protrusions; The geometry external form of said protrusion is the h/w value; Wherein h is the height of said protrusion, and w is the width of said protrusion, and the physical dimension of said protrusion for how meter level; And
One nematic crystal layer is arranged on this liquid crystal resistant strata, is sealed between this substrate and this subtend substrate, and wherein said protrusion provides this nematic crystal layer a plurality of tilt angle, and said tilt angle is the main shaft of said liquid crystal molecule and the angle of horizontal direction; And
One backlight assembly is adjacent to this substrate;
Wherein, the material of this liquid crystal resistant strata is suc as formula shown in (1), formula (1):
Wherein,
B, B ' comprise aromatic series or saturated rings alkane;
X, Y comprise terminal base or reactive group;
R, R ', R " be crosslinked between the loop systems; And
Z, Z ' are side chain substituents.
2. liquid crystal indicator according to claim 1 is characterized in that, the height of this protrusion between 10 how rice to 200 how between the rice.
3. liquid crystal indicator according to claim 1 is characterized in that, the breadth extreme of this protrusion between 150 how rice to 600 how between the rice.
4. liquid crystal indicator according to claim 1 is characterized in that reactive group comprises acrylic acid, epoxy resin.
5. liquid crystal indicator according to claim 1 is characterized in that, the crosslinked alkyl structure that comprises between loop systems.
6. liquid crystal indicator according to claim 1 is characterized in that, more comprises a both alignment layers, and it is disposed on this subtend substrate.
7. liquid crystal indicator according to claim 6 is characterized in that, more comprises another both alignment layers, and it is disposed between this substrate and this liquid crystal resistant strata.
8. liquid crystal indicator according to claim 1 is characterized in that, more comprises another liquid crystal resistant strata, is disposed on this subtend substrate.
9. liquid crystal indicator according to claim 8 is characterized in that, comprise that more a both alignment layers is disposed between this substrate and this liquid crystal resistant strata, and another both alignment layers is disposed between this subtend substrate and another this liquid crystal resistant strata.
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| CN200510113470XA CN1949062B (en) | 2005-10-12 | 2005-10-12 | Liquid crystal display panel and manufacture method thereof |
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| CN200510113470XA CN1949062B (en) | 2005-10-12 | 2005-10-12 | Liquid crystal display panel and manufacture method thereof |
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| CN1949062B true CN1949062B (en) | 2012-05-09 |
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| TW201003258A (en) | 2008-07-08 | 2010-01-16 | Chi Mei Optoelectronics Corp | Liquid crystal display and pixel structure |
| JP5630014B2 (en) * | 2009-01-30 | 2014-11-26 | ソニー株式会社 | Manufacturing method of liquid crystal display device |
| CN105093620B (en) * | 2015-08-07 | 2018-03-06 | 深圳市华星光电技术有限公司 | Public advertising display screen and preparation method thereof |
| CN111025775A (en) | 2019-12-16 | 2020-04-17 | 深圳市华星光电半导体显示技术有限公司 | Curved surface screen |
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Effective date of registration: 20120301 Address after: Taiwan, China 350 Hsinchu science and Technology Industrial Park, Miaoli County, Southern Town, science Road, No. 160 Applicant after: Chimei Optoelectronics Co., Ltd. Address before: China Taiwan 74144 Tainan County Tainan Science Industrial Park odd Road No. 1 Applicant before: Chimei Optoelectronics Co., Ltd. |
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