CN101055379A - Liquid crystal display panel, photoelectric device and method for manufacturing the same - Google Patents
Liquid crystal display panel, photoelectric device and method for manufacturing the same Download PDFInfo
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- CN101055379A CN101055379A CN 200710108961 CN200710108961A CN101055379A CN 101055379 A CN101055379 A CN 101055379A CN 200710108961 CN200710108961 CN 200710108961 CN 200710108961 A CN200710108961 A CN 200710108961A CN 101055379 A CN101055379 A CN 101055379A
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Abstract
The invention relates to a liquid crystal display board, a photo-electric device and the manufacturing method thereof. In the method, a photo-alignment layer is formed on a first basal plate and an imaging pixel electrode is formed on a second basal plate. A liquid crystal layer is formed between the photo-alignment layer and the imaging pixel electrode. The imaging pixel electrode comprises: a crossing electrode provided with a first direction part and a second direction part is interlaced with the first one, and a strip electrode which has a plurality of slits between each strip is at least connected with either the first direction part or the second direction part. When the electric field between the first basal plate and the second basal plate is zero, the liquid crystal molecule arrangement near the photo-alignment layer is provided a predetermined inclined angle, and that the liquid crystal molecule arrangement oppositely at a side is virtually vertical with the second basal plate. When the liquid crystal layer is drived, the liquid molecule on the liquid crystal layer is arranged along the slit extending direction. The quid crystal display board of the invention can achieve the requirement both of the simple manufacturing process and high contrast display quality.
Description
Technical field
The invention relates to the manufacture method of a kind of display panels, electrooptical device and this display panels and electrooptical device, and particularly relevant for a kind of display panels, electrooptical device and manufacture method thereof (LIQUID CRYSTALDISPLAY PANEL, ELECTROPIC DEVICE AND MANUFACTURINGMETHOD THEREOF) with patterning pixel electrode of light alignment film and little slit.
Background technology
Market is towards characteristics such as height contrast (high contrast ratio), the counter-rotating of no GTG (no gray scale inversion), colour cast little (little color shift), brightness height (highluminance), high color richness, high color saturation, rapid reaction and wide viewing angles for the performance requirement of LCD.At present, the technology that can reach the wide viewing angle requirement has stable twisted nematic (twist nematic, TN) liquid crystal adds view film (wide viewing film), copline switch type (in-plane switching, IPS) LCD, limit switch type (fringe field switching) LCD, multi-domain perpendicular alignment-type (multi-domain vertically alignment, MVA) mode such as LCD.
Existing multi-field vertical assigned LCD panel is to utilize the liquid crystal molecule in the zones of different that is configured to make of alignment structure (alignmentstructure) to topple over different angles, and reaches the effect of wide viewing angle.Alignment pattern comprises orientation projection (alignment protrusion) and is positioned at orientation slit (alignment slit) on the electrode.Yet, the toppling direction often indeterminate (disclination) of orientation projection and orientation slit periphery liquid crystal molecule, and cause the situation of light leak, further make the demonstration contrast of LCD reduce.If cover the situation of light leak and dispose light shield layer corresponding to orientation projection or orientation slit, can make again to show that aperture opening ratio is restricted.Therefore, (Polymer-stablized alignment PSA) is suggested in the orientation mode that forms multi-direction orientation a kind of polymer-stabilized alignment, to improve the problem that multi-field vertical assigned LCD panel shows that contrast is not good.
The mode of polymer-stabilized alignment must be doped in reactive monomer in the liquid crystal layer earlier, and grants the specific voltage of liquid crystal layer.With an irradiate light liquid crystal layer, then reactive monomer is assembled to merge and is solidified, to form the liquid crystal resistant strata simultaneously on the substrate of liquid crystal layer both sides under this voltage.Wherein, the direction of illumination of light can influence the molecules align of liquid crystal resistant strata.Therefore, desire forms multidirectional orientation can shine liquid crystal layer by the incident light with different directions in zones of different, and reaches the wide viewing angle display effect.Because the liquid crystal resistant strata can not cause Liquid Crystal Molecules Alignment indeterminate (disclination), just can not make the phenomenon of display panels generation light leak yet, thereby help to improve the demonstration contrast of display panels.It's a pity that the process that the manufacturing process complexity of polymer-stabilized alignment and liquid crystal are stablized layers of polymer tends to produce some defectives.Therefore, the rectilinear display panels of existing various multiple domain can't be taken into account simple fabrication process and the high demand that shows the contrast display quality.
Summary of the invention
The invention provides a kind of manufacture method of display panels, to solve the manufacturing process complicated problems of existing multi-field vertical assigned LCD panel.
The present invention provides a kind of manufacture method of electrooptical device in addition, has the high multi-field vertical assigned LCD panel that shows contrast to make under simple manufacturing process.
The present invention provides a kind of display panels again, shows the not good problem of contrast to solve existing multi-field vertical assigned LCD panel.
The present invention provides a kind of electrooptical device again, to improve the demonstration contrast of multi-field vertical assigned LCD panel.
The present invention proposes a kind of manufacture method of display panels.This manufacture method comprises that formation light both alignment layers is on first substrate.Form a plurality of patterning pixel electrodes on second substrate, and form liquid crystal layer between the patterning pixel electrode of the light both alignment layers of first substrate and second substrate.Each patterning pixel electrode comprises at least one crossed electrode (intersection electrode) and a plurality of strip shaped electric poles (stripeelectrode), wherein crossed electrode have first direction portion (first directional portion) at least and with the staggered portion of second direction at least (second directional portion) of first direction portion, and strip shaped electric poles and first direction portion and second direction portion at least one be connected, have a plurality of slits between the strip shaped electric poles.In addition, when the electric field between first substrate and second substrate is zero, has a tilt angle with the arrangement of the liquid crystal molecule of the approaching liquid crystal layer of light both alignment layers, and the arrangement of the liquid crystal molecule of a relative side is in fact perpendicular to second substrate, and when the liquid crystal molecule of liquid crystal layer was driven, the liquid crystal molecule of liquid crystal layer can be arranged along the bearing of trend of slit.
The present invention proposes a kind of manufacture method of electrooptical device in addition, comprises the manufacture method of aforesaid display panels.
The present invention proposes a kind of display panels again.This display panels comprises first substrate, second substrate, light both alignment layers, patterning pixel electrode and liquid crystal layer.Second substrate is relative with first substrate, and the light both alignment layers is disposed at first real estate on the surface of second substrate.The patterning pixel electrode is disposed at second real estate on the surface of first substrate.Liquid crystal layer is disposed between first substrate and second substrate.Each patterning pixel electrode has at least one crossed electrode and a plurality of strip shaped electric poles, wherein crossed electrode has at least one first direction portion and vertical with first direction portion at least one second direction portion, and strip shaped electric poles and first direction portion and second direction portion at least one be connected, accompany a plurality of slits between the strip shaped electric poles.When the electric field between first substrate and second substrate is zero, has a tilt angle with the liquid crystal molecule of the liquid crystal layer of the approaching side of light both alignment layers, and the arrangement of the liquid crystal molecule of a relative side is in fact perpendicular to second substrate, and when the liquid crystal molecule of liquid crystal layer was driven, the liquid crystal molecule of liquid crystal layer can be arranged along the bearing of trend of slit.
The present invention proposes a kind of electrooptical device again, and it comprises aforesaid display panels.
Display panels of the present invention can be taken into account simple fabrication process and the high demand that shows the contrast display quality.
Description of drawings
Fig. 1 illustrates the diagrammatic cross-section into the display panels of one embodiment of the invention.
Fig. 2 A～Fig. 2 C illustrates the synoptic diagram into three kinds of patterning pixel electrodes of one embodiment of the invention.
When Fig. 3 illustrates liquid crystal molecule for liquid crystal layer and is driven, look synoptic diagram on the part of the display panels of Fig. 1.
Fig. 4 A and Fig. 4 B illustrate the synoptic diagram into two kinds of light both alignment layers of one embodiment of the invention.
Fig. 5 A illustrates exposure manufacturing process into the light both alignment layers that forms Fig. 3 A to Fig. 5 F.
Fig. 6 illustrates the synoptic diagram into the electrooptical device of one embodiment of the invention.
The primary clustering symbol description:
100: display panels
110: the first substrates
114: counter electrode
116: color screen
120: the second substrates
122: protective seam
124: active layers
130,130A, 130B: light both alignment layers
132: alignment direction
140,140A, 140B, 140C: patterning pixel electrode
142: crossed electrode
144: strip shaped electric poles
146: first direction portion
148: second direction portion
150: liquid crystal layer
152,154: liquid crystal molecule
160,162: be connected electrode
510: base material
512: the orientation district
520: pixel region
530: general light shield
532: photic zone
534: light tight district
542: first direction
544: second direction
546: third direction
548: the four directions to
600: electrooptical device
610: display panels
620: electronic package
D1, d2: distance
P1, P2, P3, P4: zone
S: slit
θ: tilt angle
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Fig. 1 illustrates the diagrammatic cross-section into the display panels of one embodiment of the invention.Please refer to Fig. 1, display panels 100 comprises first substrate 110, second substrate 120, light both alignment layers 130, patterning pixel electrode 140 and liquid crystal layer 150.Second substrate 120 is relative with first substrate 110, and light both alignment layers 130 is disposed at first substrate 110 on the surface of second substrate 120.Patterning pixel electrode 140 is disposed at second substrate 120 on the surface of first substrate 110.Liquid crystal layer 150 is disposed between first substrate 110 and second substrate 120.In addition, patterning pixel electrode 140 for example is that arrayed is on second substrate 120, but be not limited thereto, patterning pixel electrode 140 also can present rounded projections arranged (delta arrangement), mosaic arrangement (mosaic arrangement), cellular arrangement (honeycomb arrangement) or other arrangement mode or above-mentioned combination.
Specifically, display panels 100 also comprises a subtend electrode 114, and it is disposed on first substrate 110, and counter electrode 114 is between first substrate 110 and light both alignment layers 130.Simultaneously, display panels 100 preferably, also can comprise the protective seam 122 that is disposed on second substrate 120, and protective seam 122 overlay pattern pixel electrodes 140, but is not limited thereto.Optionally do not dispose protective seam 122 among other embodiment on second substrate 120 yet.The material of protective seam 144 comprises that (as: monox, silicon nitride, silicon oxynitride, silit, class diamond are arranged carbon class (diamond like carbon, DLC) or other material or above-mentioned combination) or above-mentioned combination for organic material (as: Polyimide class, polyamide class, poly-imines class, poly-vinegar ether imines class, poly-vinegar ether amine, polyesters, polyethers or other material or above-mentioned combination), inorganic.Present embodiment is to be used as the enforcement example with the Polyimide class of organic material, but is not limited thereto.In addition; in order to help liquid crystal alignment; protective seam 144 also can use the way of contact (as: friction, rolling or alternate manner or above-mentioned combination), noncontact mode (as: irradiation, exposure, etching, atomic beam/ion beam/neutron beam/electron beam bombard its surface or alternate manner or above-mentioned combination with special angle) or the combination of alternate manner or aforesaid way to form alignment direction identical in fact with light both alignment layers 130 or that be different in essence, but does not also optionally form alignment direction on protective seam 144.Present embodiment serves as to implement example not form alignment direction at protective seam 144, but is not limited thereto.
Further, display panels 100 also can comprise an active layers 124, and it is disposed on second substrate 120, and active layers 124 is positioned under the patterning pixel electrode 140.Active layers 124 for example comprises a plurality of driving components, for example is thin film transistor (TFT), and each thin film transistor (TFT) for example electrically connects with pairing each patterning pixel electrode 140.Certainly, in order to present the display effect of colouring, display panels 100 comprises that also colored filter 116 is disposed on first substrate 110.Or, also colored filter 116 can be disposed on second substrate 120 in other embodiments, just constitute chromatic filter layer and be produced on (Color Filter on Array on the thin film transistor (TFT) array, COA) or thin film transistor (TFT) array is produced on (Array on Color Filter, structure AOC) on the chromatic filter layer.In more detail, for example dispose multi-strip scanning line (not shown) and many data lines (not shown) on the display panels 100, wherein each sweep trace and each data line for example be staggered and with pairing driving component electric connection.In addition, the structure of the thin film transistor (TFT) dopant profile that comprises bottom gate type, top gate type or other kenel and thin film transistor (TFT) comprises N type, P type or above-mentioned combination.
Fig. 2 A～Fig. 2 C illustrates the synoptic diagram into three kinds of patterning pixel electrodes of one embodiment of the invention.Please refer to Fig. 2 A, patterning pixel electrode 140A has at least one crossed electrode 142 and a plurality of strip shaped electric poles 144, and accompanies a plurality of slit S between the strip shaped electric poles 144.The second direction portion 148 that crossed electrode 142 has first direction portion 146 and interlocks with first direction portion 146, and crossed electrode 142 for example defines at least four regional P1, P2, P3 and P4, and strip shaped electric poles 144 and slit S are positioned at each regional P1, P2, P3 and P4.In addition, strip shaped electric poles 144 and the slit S in each regional P1, P2, P3 and the P4 is parallel to each other in fact.Specifically, the bearing of trend of strip shaped electric poles 144 and slit S for example in fact can be by the intersection point of first direction portion 146 with second direction portion 148 among each regional P1, P2, P3 and the P4.But the invention is not restricted to this, in other embodiments, the bearing of trend of strip shaped electric poles 144 at least one zone and slit S optionally in fact can be by the intersection point of first direction portion 146 with second direction portion 148 yet among regional P1, P2, P3 and the P4.
With present embodiment, first direction portion 146 and second direction portion 148 for example constitute cross structure, and promptly first direction portion 146 and second direction portion 148 for example are roughly orthogonal for implementing example, but are not limited thereto.In other embodiment, the angle between first direction portion 146 and the second direction portion 148 also optionally intersects 0 degree to 180 degree.For example, first direction portion 146 in 0 the degree direction, and second direction portion 148 in 45 the degree directions, then its angle be 45 the degree.If first direction portion 146 in 10 the degree directions, and second direction portion 148 in 45 the degree directions, then its angle be 35 the degree.In addition, when first direction portion 146 in 0 degree direction, and second direction portion 148 is in 100 degree during directions, then its angle is 100 degree.Or, first direction portion 146 in 10 the degree directions, and second direction portion 148 in 150 the degree directions, then its angle be 140 the degree.Again for example, first direction portion 146 in 0 the degree direction, and second direction portion 148 in 175 the degree directions, then its angle be 175 the degree; Or first direction portion 146 in 5 the degree directions, and second direction portion 148 in 15 the degree directions, then its angle be 10 the degree etc.
At least one is connected strip shaped electric poles 144 and first direction portion 146 and second direction portion 148.That is to say that part strip shaped electric poles 144 is connected with first direction portion 146 and part strip shaped electric poles 144 is connected with second direction portion 148.Simultaneously, strip shaped electric poles 144 and first direction portion 146 or second direction portion 148 wherein at least one is not parallel in fact.In the present embodiment, strip shaped electric poles 144 is uneven behavior in fact with first direction portion 146 and second direction portion 148 and implements example, but be not limited thereto, wherein at least one is parallel or above-mentioned combination in fact for strip shaped electric poles 144 and first direction portion 146 and second direction portion 148.In fact, for preferable field effect further is provided, rotate to assist liquid crystal molecule, each patterned electrodes 140B, 140C also can comprise linking electrode 160,162, it connects a part of at least crossed electrode 142 and at least one part strip shaped electric poles 144, shown in Fig. 2 B～2C.
See also Fig. 2 B, this embodiment is to be connected crossed electrode 142 and the strip shaped electric poles 144 that electrode 160 connects and the circle residence has.In another embodiment, being connected electrode 160 for example is that connection and circle are lived part crossed electrode 142 and the part strip shaped electric poles 144 at least one regional P1, P2, P3 or the P4.For example, in the patterned electrodes 140C of Fig. 2 C, be connected electrode 162 and be and connect and circle is lived wherein part crossed electrode 142 in two regional P1 and the P2 and part strip shaped electric poles 144 for implementing example, but the invention is not restricted to this.The present invention also optionally makes and is connected that electrode 160,162 connects and circle is lived part crossed electrode 142 and part strip shaped electric poles 144 in one, three or four zones.In addition, present embodiment is to serve as to implement example with four regional P1, P2, P3 and P4, but the invention is not restricted to this.In other words, the also demand on the viewable design and have more than one direction portion (as:, two, three, four, five, six, seven, eight etc.) of crossed electrode 142 in other embodiments, and optionally define a plurality of zones such as two, three, five, six, seven, eight.
The described crossed electrode 142 of the above embodiment of the present invention be with one be the embodiment example, but be not limited thereto.In other embodiment, patterning pixel electrode 140 also can use a plurality of crossed electrodes 142 such as two, three, four, five, six, seven, eight according to the demand in the design, define required a plurality of regional P.At this moment, the either direction portion of each crossed electrode 142 or whole direction portions optionally connect in fact or do not connect.In addition, crossed electrode 142 optionally cooperates/mismatches as the described linking electrode 162 of Fig. 2 C and changed design.For example: can use two crossed electrodes 142 in one embodiment, and its direction portion does not connect, and cooperate to be connected electrode, then with the linking electrode 162 of different crossed electrodes 142 collocation can not corresponding in fact setting, corresponding in fact setting, be crisscross arranged or other set-up mode in fact.In addition, use two crossed electrodes 142, and the direction portion that it has only has direction to connect and cooperates and is connected electrode 162, then in the linking electrode 162 of different crossed electrodes 142 can not corresponding in fact setting, correspondingly in fact be provided with, be crisscross arranged in fact or other set-up mode etc.
When Fig. 3 illustrates liquid crystal molecule for liquid crystal layer and is driven, look synoptic diagram on the part of the display panels of Fig. 1.Please be simultaneously with reference to Fig. 1 and Fig. 3, because slit S is a little slit designs, the width d2 of its width d1 and strip shaped electric poles 144 makes an appointment with only several microns.For example, width d1 and width d2 are about 3.5 microns, or width d1 is 3.5 microns and width d2 is about 4 microns, but are not limited thereto.Therefore, when the liquid crystal molecule of liquid crystal layer 150 was driven, the liquid crystal molecule of liquid crystal layer 150 can be arranged along the bearing of trend of slit S in fact.In each patterning pixel electrode 140 of the present invention, the arrangement of strip shaped electric poles 144 has a plurality of different directions, also has a plurality of alignment direction with time both alignment layers 130.Therefore, the orientation of liquid crystal molecule also can present a plurality of directions.In other words, display panels 100 does not need the orientation projection just can have the display effect of wide viewing angle.Furthermore, slit S is little slit designs in the display panels 100, can not make the Liquid Crystal Molecules Alignment direction indeterminate.So, be difficult for producing orientation projection or the orientation slit phenomenon of light leak on every side in the display panels 100, and under dark attitude electric field, can showing dark picture, also just promoted the demonstration contrast.According to the described design of the above embodiment of the present invention, its actual measurement is learnt, uses the display of display panels 100 mades, and its correlative value can reach about more than 4000.
In addition, Fig. 4 A and Fig. 4 B illustrate the synoptic diagram into two kinds of light both alignment layers of one embodiment of the invention.Please be simultaneously with reference to Fig. 3 and Fig. 4 A, light both alignment layers 130A for example can correspondence the pattern of each patterning pixel electrode 140A, and have a plurality of alignment direction 132.That is, alignment direction 132 for example is the bearing of trend of slit S in parallel in fact each patterning pixel electrode 140, but is not limited thereto.For instance, if in the patterning pixel electrode 140, when about 45 ° were intersected respectively in the bearing of trend of slit S and first direction portion 146 and second direction portion 148, then a plurality of alignment direction 132 of light both alignment layers 130A also can intersect about 45 ° respectively with first direction portion 146 and second direction portion 148.In addition, the bearing of trend of slit S also can be respectively with other different angle of intersection with first direction portion 146 and second direction portion 148.So a plurality of alignment direction 132 of light both alignment layers 130A also can intersect at other angle respectively with first direction portion 146 and second direction portion 148.
Certainly, light both alignment layers 130A also can not need the pattern of corresponding each patterning pixel electrode 140, and has a plurality of alignment direction 132.Please refer to Fig. 4 B, light both alignment layers 130B for example only has two alignment direction 132, and each alignment direction 132 for example is vertical in fact with the first direction portion 146 of patterning pixel electrode 140.Or in other embodiments, each alignment direction 132 for example can be parallel in fact with the first direction portion 146 of patterning pixel electrode 140.
When the configuration of light both alignment layers 130 made the electric field of win 120 of substrate 110 and second substrates be essentially zero, the liquid crystal molecule 152 with the approaching side of light both alignment layers 130 in the liquid crystal layer 150 had a pretilt theta.Yet the arrangement of the liquid crystal molecule 155 of a relative side is in fact perpendicular to second substrate 120 (as shown in Figure 1).At this moment, because liquid crystal molecule 152 has a pretilt theta, and help to improve the speed of replying of liquid crystal layer 150.Generally speaking, pretilt theta is spent less than 90 in fact, but is not limited thereto, and the tilt angle of liquid crystal material also can be complied with selected design or its liquid crystal material and be changed to some extent, for example tilt angle in fact can be more than or equal to 90 degree, and tilt angle in fact also can be more than or equal to 0 degree.
Specifically, the manufacture method of display panels 100 comprises that formation light both alignment layers 130 is on first substrate 110, form a plurality of patterning pixel electrodes 140 on second substrate 120, and form liquid crystal layer 150 in 140 of the patterned electrodes of the light both alignment layers 130 of first substrate 110 and second substrate 120.For instance, the method for formation liquid crystal layer 150 comprises drip formula injection method or vacuum impregnation.In addition; the manufacture method of display panels 100 also can be included on first substrate 110 and to form counter electrode 114, colored filter 116, and in 120 forming protective seams 122, active layers 124 or in forming counter electrode 114 and form protective seam 122, active layers 124 and chromatic filter layers (not illustrating) in first substrate 110 on 120 on second substrate on second substrate.Wherein, the material of counter electrode 114 comprises the electrically conducting transparent material, for example is indium tin oxide, indium-zinc oxide, cadmium tin-oxide, aluminium zinc oxide, aluminium tin-oxide, Yangization Han or other material or above-mentioned combination.
Specifically, the method that forms each patterning pixel electrode 140 for example is to form pixel electrode layer (not illustrating) on second substrate 120, and this pixel electrode layer of patterning (not illustrating), be example with crossed electrode 142, slit S and the strip shaped electric poles 144 that forms shown in Fig. 2 A.The material of patterning pixel electrode 140 comprises electrically conducting transparent material (as: indium tin oxide, indium-zinc oxide, the cadmium tin-oxide, the aluminium zinc oxide, aluminium tin-oxide Yangization Han, or other material, or above-mentioned combination), reflection material (as: gold, silver, copper, iron, tin, plumbous, aluminium, molybdenum, neodymium, titanium, tantalum, tungsten Han, or other material, or above-mentioned alloy, or above-mentioned oxide, or above-mentioned nitride, or above-mentioned oxides of nitrogen, or above-mentioned combination), or above-mentioned combination.
In addition, light both alignment layers 130 is utilized the sensing optical activity alignment materials and is made.The alignment materials of this type is subjected to can producing after the irradiate light effect such as polymerization or decomposition and makes its molecule present special ordered state, thereby can be used as the auxiliary layer of guiding liquid crystal alignment.In general, the exposure manufacturing process that the general light shield of arranging in pairs or groups carries out repeatedly can form both alignment layers 130A and the 130B with a plurality of alignment direction 132, but the invention is not restricted to this, also can utilize the design on half light modulation cover, slit light shield, diffraction light shield, the gray-level mask in other embodiments, only carry out the single exposure manufacturing process and just form both alignment layers 130A and 130B with a plurality of alignment direction.
Fig. 5 A illustrates exposure manufacturing process into the light both alignment layers that forms Fig. 3 A to Fig. 5 F.At first, please refer to Fig. 5 A, a base material 510 that scribbles the sensing optical activity alignment materials is provided.Dividing on the base material 510 has a plurality of orientations district 512, and to constitute a pixel region 520 with per four adjacent orientation districts 512 be example, but is not limited thereto.In other embodiments, also can by two, three, five, six, seven, eight or more polygamy constitute a pixel region 520 to district 512 or the like.
Then, please refer to Fig. 5 B, a general light shield 530 is provided.General light shield 530 for example has a plurality of light tight district 534 beyond a plurality of photic zones 532 and the photic zone 532, and wherein each photic zone 532 is for example corresponding to one of them the orientation district 512 of each pixel region 520 on the base material 510.When exposing manufacturing process with general light shield 530 as the cover curtain, light only can make corresponding to the sensing optical activity alignment materials generation light reaction in the photic zone 532 by photic zone 532.Only draw a pixel region 520 among following Fig. 5 C～Fig. 5 F so that the exposure manufacturing process is carried out more detailed explanation.
Please refer to Fig. 5 C, make the light with particular energy see through general light shield 530 irradiation base materials 510 from first direction 542.At this moment, the photic zone 532 of general light shield 530 for example is corresponding to pixel region 520 upper left orientation districts 512.Therefore, the alignment direction of the 512 formation first directions 542 of the sensing optical activity alignment materials on the base material 510 in orientation district, the upper left side of pixel region 520.In addition, the light that has particular energy in the present embodiment for example is ultraviolet light, infrared ray or other light.More specifically, the ultraviolet light that shines on base material 510 can have special polarization characteristic, and single linear polarization direction for example is so that produce specific molecular structure forward behind sensing optical activity alignment materials on the base material 510 and the light action, for the usefulness of orientation, but be not limited thereto.
Then, please refer to Fig. 5 D, general light shield 530 is moved, make the orientation district 512 of the photic zone 532 of general light shield 530 corresponding to pixel region 520 lower lefts.Simultaneously, see through general light shield 530 irradiation base materials 510 with above-mentioned light from second direction 544.The alignment direction that can have thus, second direction 544 in the orientation district, lower-left 512 of pixel region 520.
Then, repeat above-mentioned mobile general light shield 530 and carry out step of exposing, so that the upper right and bottom right orientation district 512 of pixel region 520 has the third direction 546 that illustrated as Fig. 5 E and Fig. 5 F and four directions to 548 alignment direction.At this moment, promptly have four alignment direction (542,555,546 and 548) in the pixel region 520, also just finish the light both alignment layers 130A that is illustrated as Fig. 4 A.When exposing manufacturing process, by adjusting the light incident direction to obtain different alignment direction.Or, in other embodiments, can make light source under fixing direction of illumination, utilize the mode of rotating base material 510 to make light with the sensing optical activity alignment materials on the different angles irradiation base material 510.Or, in other embodiments, also can utilize the different light shields manufacturing process of exposing to obtain different alignment direction.Therefore, desire forms light both alignment layers 130A or the 130B with a plurality of alignment direction of the present invention, only need adjust light incident direction, rotate the position of base material or utilize the design that has the penetration level of not sharing the same light on the light shield and the manufacturing process of exposing gets final product.Compared to the polymer-stabilized alignment manufacturing process, the exposure manufacturing process of present embodiment is comparatively simplified, the macromolecular materials such as using reactive monomer of also need not arranging in pairs or groups simultaneously, thereby also save the required cost of material.In addition, the exposure method that present embodiment proposed can only carry out on a base material or substrate, can make display panels or the manufacturing process of electrooptical device has elasticity.On the other hand, if use general light shield to expose manufacturing process when forming a plurality of alignment direction, irradiate light (as: oblique irradiation, or other direction) angle can influence the bond of sensing optical activity alignment materials and base material 510 between angle, and then can have a tilt angle when liquid crystal molecule is contacted with the light alignment film, will help to improve the speed of replying of liquid crystal molecule in the display panels.
Moreover the described crossed electrode 142 of the above embodiment of the present invention, strip shaped electric poles 144, slit S and the shape that is connected electrode 160 or 162 are not limited to shown in the figure, also can use Else Rule shape, irregularly shaped or above-mentioned combination.Again, the described linking electrode 160 of the above embodiment of the present invention and 162 is to be example with the tail end that is connected in crossed electrode 142 and strip shaped electric poles 144, but be not limited thereto, also alternative connect crossed electrode 142 and strip shaped electric poles 144 wherein at least one tail end or connect crossed electrode 142 and position that strip shaped electric poles 144 is any.In addition, the described linking electrode 160 of the above embodiment of the present invention and 162 is to serve as to implement example with one, but be not limited thereto, also can be according to the requirement in the design, and use two, three, four, five, six, seven, eight etc. to be connected electrode 160 or 162 in one or more above-mentioned embodiment.
Fig. 6 illustrates the synoptic diagram into the electrooptical device of one embodiment of the invention.Please refer to Fig. 6, electrooptical device 600 comprises display panels 610 and the electronic package 620 that electrically connects with display panels 610.Wherein, display panels 610 for example is disclosed various types of display panels in the foregoing description.In addition, the kenel of display panels 610 comprises light penetrating type, light reflection-type or Transflective, all can apply to the design of the foregoing description.Because display panels 610 has the described design of the foregoing description, so electrooptical device 600 has the display effect of high contrast and frame updating speed fast.For example, electronic package 620 comprises as Control Component, operating assembly, processing components, input module, memory element, driven unit, luminescence component, protection assembly, sensing component, detection components or other functional module or above-mentioned combination.And the type of electrooptical device 600 comprises the panel in portable product (as mobile phone, video camera, camera, mobile computer, digital frame, game machine, wrist-watch, music player, electronic mail transceiver, map navigator or similar products like), video and audio product (as audio-visual projector or similar products like), screen, TV, indoor/outdoor billboard, the projector etc.
In sum, display panels of the present invention and electrooptical device have the advantage of the following stated at least.Display panels of the present invention and electrooptical device utilize the design of the foregoing description to influence the arrangement of liquid crystal molecule, make when not having electric field in fact between first substrate and second substrate, have a tilt angle near the liquid crystal molecule of light both alignment layers.Thus, when display panels carried out the picture demonstration, liquid crystal molecule had reaction rate faster, also just can improve the display quality of display panels.But must it should be noted that, when auxiliary, also optionally implement an orientation and handle on the protective seam on second substrate as if orientation that need be extra.In addition, the present invention carries out one or many exposure forming the light both alignment layers of a plurality of alignment direction on first substrate to the sensing optical activity alignment materials, thereby the making step of display panels and electrooptical device and material requested are comparatively simple.On the other hand, among the present invention, be disposed at the design that patterning pixel electrode on second substrate has little slit and a plurality of strip shaped electric poles, make and to arrange along the bearing of trend of slit and strip shaped electric poles in fact when liquid crystal molecule is driven.Therefore, the phenomenon of dark attitude light leak can not take place at the slit edge in the display panels, with the demonstration contrast of further raising display panels.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, thus protection scope of the present invention when with claim the person of being defined be as the criterion.
Claims (22)
1. the manufacture method of a display panels is characterized in that, said method comprising the steps of:
Form a smooth both alignment layers on one first substrate;
Form a plurality of patterning pixel electrodes on one second substrate, each described patterning pixel electrode comprises at least one crossed electrode and a plurality of strip shaped electric poles, wherein said crossed electrode have at least one first direction portion and with staggered at least one second direction portion of described first direction portion, and described strip shaped electric poles and described first direction portion and described second direction portion wherein at least one is connected, have a plurality of slits between the described strip shaped electric poles; And
Form a liquid crystal layer between the described patterned electrodes of the described smooth both alignment layers of described first substrate and described second substrate, when the electric field between described first substrate and described second substrate is zero, has a tilt angle with the arrangement of the liquid crystal molecule of the approaching described liquid crystal layer of described smooth both alignment layers, and the arrangement of the liquid crystal molecule of a relative side is in fact perpendicular to described second substrate, and when the liquid crystal molecule of described liquid crystal layer was driven, the liquid crystal molecule of described liquid crystal layer can be arranged along the bearing of trend of described slit in fact.
2. the manufacture method of display panels as claimed in claim 1 is characterized in that, when forming described smooth both alignment layers, also comprises making described smooth both alignment layers have a plurality of alignment direction, so that described alignment direction is parallel in fact with the bearing of trend of described slit.
3. the manufacture method of display panels as claimed in claim 1 is characterized in that, the method that forms each described patterning pixel electrode may further comprise the steps:
Form a pixel electrode layer on described second substrate; And
The described pixel electrode layer of patterning, to form described crossed electrode, described slit and described strip shaped electric poles, each described crossed electrode defines at least four zones, and described strip shaped electric poles and described slit are positioned at each described zone, and described strip shaped electric poles in each described zone and described slit are parallel to each other in fact.
4. the manufacture method of display panels as claimed in claim 3, it is characterized in that the method that forms each described patterning pixel electrode also comprises the bearing of trend intersection point by described first direction portion and described second direction portion in fact that makes strip shaped electric poles described in each described zone and described slit.
5. the manufacture method of display panels as claimed in claim 1, it is characterized in that, when forming each described patterning pixel electrode, comprise that also forming one is connected electrode, so that the described strip shaped electric poles of at least one part that described linking electrode surrounds the described crossed electrode of at least one part and is connected with each described crossed electrode.
6. the manufacture method of display panels as claimed in claim 1; it is characterized in that; form after the described patterning pixel electrode and form before the described liquid crystal layer, also be included in and form a protective seam on described second substrate, wherein said protective seam covers described patterning pixel electrode.
7. the manufacture method of display panels as claimed in claim 1 is characterized in that, described method also is included in and forms a subtend electrode on described first substrate, and described counter electrode layer is between described first substrate and described smooth both alignment layers.
8. the manufacture method of display panels as claimed in claim 1 is characterized in that, described method also is included in and forms an active layers on described second substrate, and described active layers is positioned under the described patterning pixel electrode.
9. the manufacture method of display panels as claimed in claim 1 is characterized in that, described method also is included in described first substrate and described second substrate and forms a color filter layers on one of them.
10. the manufacture method of display panels as claimed in claim 1 is characterized in that, described strip shaped electric poles and described first direction portion and described second direction one of them person of portion are not parallel in fact.
11. a display panels is characterized in that, described display panels comprises:
One first substrate;
One second substrate, it is relative with described first substrate;
One smooth both alignment layers, it is disposed at described first real estate on the surface of described second substrate;
A plurality of patterning pixel electrodes, it is disposed at described second real estate on the surface of described first substrate, each described patterning pixel electrode has at least one crossed electrode and a plurality of strip shaped electric poles, wherein said crossed electrode have at least one first direction portion and with staggered at least one second direction portion of described first direction portion, and described strip shaped electric poles and described first direction portion and described second direction portion wherein at least one is connected, accompany a plurality of slits between the described strip shaped electric poles; And
One liquid crystal layer, it is disposed between described first substrate and described second substrate, when the electric field between described first substrate and described second substrate is essentially zero, has a tilt angle with the liquid crystal molecule of the described liquid crystal layer of the approaching side of described smooth both alignment layers, and the arrangement of the liquid crystal molecule of a relative side is in fact perpendicular to described second substrate, and when the liquid crystal molecule of described liquid crystal layer was driven, the liquid crystal molecule of described liquid crystal layer can be arranged along the bearing of trend of described slit in fact.
12. display panels as claimed in claim 11 is characterized in that, described smooth both alignment layers has a plurality of alignment direction, and described alignment direction is parallel to the bearing of trend of described slit in fact.
13. display panels as claimed in claim 11, it is characterized in that, each described crossed electrode defines at least four zones, and described strip shaped electric poles and described slit be positioned at each described zone, and described strip shaped electric poles in each described zone and described slit are parallel to each other in fact.
14. display panels as claimed in claim 13 is characterized in that, the bearing of trend of strip shaped electric poles and described slit described in each described zone in fact can be by the intersection point of described first direction portion and described second direction portion.
15. display panels as claimed in claim 11 is characterized in that, each described patterned electrodes comprises that also one is connected electrode, surrounds described crossed electrode of at least one part and the described strip shaped electric poles of at least one part.
16. display panels as claimed in claim 11 is characterized in that, described display panels also comprises a subtend electrode, be disposed on described first substrate, and described counter electrode layer is between described first substrate and described smooth both alignment layers.
17. display panels as claimed in claim 11 is characterized in that, described display panels also comprises a protective seam, and it is disposed on described second substrate, and wherein said protective seam covers described patterning pixel electrode.
18. display panels as claimed in claim 11 is characterized in that, described display panels also comprises an active layers, and it is disposed on described second substrate, and described active layers is positioned under the described patterning pixel electrode.
19. display panels as claimed in claim 11 is characterized in that, described display panels also comprises a color filter layers, and it is disposed at described first substrate and second substrate on one of them.
20. display panels as claimed in claim 11 is characterized in that, described strip shaped electric poles and described first direction portion and described second direction one of them person of portion are not parallel in fact.
21. an electrooptical device is characterized in that described electrooptical device comprises display panels as claimed in claim 11.
22. the manufacture method of an electrooptical device is characterized in that, comprises the manufacture method of display panels as claimed in claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200710108961 CN101055379A (en) | 2007-06-08 | 2007-06-08 | Liquid crystal display panel, photoelectric device and method for manufacturing the same |
| CN200810074130A CN100585471C (en) | 2007-06-08 | 2008-02-14 | Liquid crystal display panel, photo-electric device and manufacturing method thereof |
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| CN 200710108961 CN101055379A (en) | 2007-06-08 | 2007-06-08 | Liquid crystal display panel, photoelectric device and method for manufacturing the same |
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| CN101055379A true CN101055379A (en) | 2007-10-17 |
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| CN200810074130A Active CN100585471C (en) | 2007-06-08 | 2008-02-14 | Liquid crystal display panel, photo-electric device and manufacturing method thereof |
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| CN104698697A (en) * | 2015-02-11 | 2015-06-10 | 友达光电股份有限公司 | Pixel structure and display panel |
| CN104714342A (en) * | 2015-03-04 | 2015-06-17 | 深圳市华星光电技术有限公司 | Display panel and manufacturing method thereof |
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| CN102122103B (en) * | 2009-12-09 | 2015-04-29 | 索尼公司 | Liquid crystal display element and liquid crystal display device |
| CN102754019A (en) * | 2010-02-09 | 2012-10-24 | 夏普株式会社 | Liquid crystal display panel manufacturing method and liquid crystal display panel |
| CN104698697A (en) * | 2015-02-11 | 2015-06-10 | 友达光电股份有限公司 | Pixel structure and display panel |
| CN104698697B (en) * | 2015-02-11 | 2018-04-27 | 友达光电股份有限公司 | Pixel structure and display panel |
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| US9885919B2 (en) | 2015-03-04 | 2018-02-06 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Display panel and method for manufacturing the same |
| WO2017063231A1 (en) * | 2015-10-14 | 2017-04-20 | 深圳市华星光电技术有限公司 | Liquid crystal display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100585471C (en) | 2010-01-27 |
| CN101226308A (en) | 2008-07-23 |
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