CN102866539B - The substrate alignment method of display panels, display panels and substrate thereof - Google Patents
The substrate alignment method of display panels, display panels and substrate thereof Download PDFInfo
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- CN102866539B CN102866539B CN201110187190.9A CN201110187190A CN102866539B CN 102866539 B CN102866539 B CN 102866539B CN 201110187190 A CN201110187190 A CN 201110187190A CN 102866539 B CN102866539 B CN 102866539B
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Abstract
A kind of substrate alignment method of display panels, the substrate of display panels and display panels.Described substrate alignment method comprises: provide substrate, described substrate is provided with the device of multiple array arrangement; On the upper strata of described multiple device, alignment film is set; Friction roller is adopted to rub in order to form groove on described alignment film with substrate alignment direction to described alignment film; One side of described device and the angle of substrate alignment direction are more than or equal to 0 degree and are less than 45 degree.Present invention reduces the bad incidence oppositely turning round territory, avoid the light leakage phenomena of the black state of pixel/grey state, and reduce production cost, shorten the time prepared by alignment film.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of substrate alignment method of display panels, the substrate of display panels and display panels.
Background technology
Liquid crystal display is little with volume, lightweight, and the advantages such as Low emissivity are widely used in various field.
Display panels is topmost ingredient in liquid crystal display.The principle of work of liquid crystal display is: the deflection angle changing liquid crystal molecule by changing the voltage be applied on liquid crystal, thus controls polarized light sense of rotation and polarization state, to realize the change of liquid crystal display display state.Such as: the structure of Thin Film Transistor (TFT) display panels mainly comprises: color membrane substrates, array base palte and the liquid crystal instiled between color membrane substrates and array base palte, after pixel electrode on array base palte and the common electrode of color membrane substrates apply voltage, described liquid crystal molecule deflects, thus controls sense of rotation and the polarization state of polarized light.
In the ordinary course of things, the arrangement in long axis of liquid crystal molecule direction is random orientation and distribution is rambling, arrange along a direction to enable the long axis direction of most of liquid crystal molecule, need to carry out orientation to color membrane substrates and array base palte, usually, alignment method is form alignment film at color membrane substrates and array base palte towards the side of liquid crystal, and on this alignment film, form the tiny groove with certain orientation, make the long axis direction of liquid crystal molecule can along the regular arrangement in the direction of groove, and then liquid crystal molecule can be controlled apply voltage on array base palte and color membrane substrates after rotate predetermined angle.
According to the difference of liquid crystal electrooptical effect, common display panels can be divided into: TN (TwistedNematic, twisted-nematic) type, STN (SuperTN, supertwist to row) type, DSTN (DoublelayerSTN, double layers super twisted nematic) type etc.Wherein: TN type, STN type are identical with the basic displaying principle of DSTN type display panels, the just distortion angle of liquid crystal molecule different (distortion angle of TN type is 90 degree, the distortion angle of STN type is 180 degree to 270 degree, the distortion angle of DSTN be 180 degree to 270 degree).The above display panels all needs the arrangement mode controlling liquid crystal molecule original state, thus after ensureing to apply voltage on color membrane substrates and array base palte, liquid crystal molecule can rotate predetermined angle.
Below for TN type display panels, the relation of allocating process and TN type display panels view directions being described, is the cut-open view of TN type display panels with reference to figure 1 and Fig. 2, Fig. 1, and Fig. 2 is the vertical view of the type of TN shown in Fig. 1 display panels.Described TN type display panels comprises the color membrane substrates 001, array base palte 002 and the liquid crystal layer 003 that is arranged between color membrane substrates 001 and array base palte 002 that are oppositely arranged.The side of color membrane substrates 001 facing arrays substrate 002 is provided with color membrane substrates alignment film 0011, described color membrane substrates alignment film 0011 has the tiny groove arranged along color membrane substrates alignment direction 0012 (as shown in Fig. 2 solid arrow); Array base palte 002 is provided with array base palte alignment film 0021 in color membrane substrates 001 side relatively, described array base palte alignment film 0021 has the tiny groove along array base palte alignment direction 0022 (as shown in Fig. 2 dotted arrow).The angle of color membrane substrates alignment direction 0012 and array base palte alignment direction 0022 is 90 degree, and the liquid crystal molecule of liquid crystal layer 003 is turned round and turn 90 degrees arrangement between color membrane substrates alignment film 0011 and array base palte alignment film 0021.
The display effect of observing TN type display panels from the view directions 004 of TN type display panels is best, wherein, the angle of described view directions 004 and color membrane substrates alignment direction 0012 is-45 °, the angle of described view directions 004 and array base palte alignment direction 0022 is-135 °, wherein, view directions 004 is once be constant after determining in the design, and the clockwise direction of view directions 004 is just, the counter clockwise direction of view directions 004 is negative.
Allocating process comprises coating processes and friction process.Wherein: coating processes is that substrate after cleaning forms alignment film by rotary coating or mode of printing, and the material of described alignment film is polyimide (PI); Friction process carries out friction orientation with certain direction to the alignment film that coating processes is formed.
Friction process is specially: participate in shown in Fig. 3, pole is tied with the friction cloth being covered with tiny fine hair and forms a friction roller 20, by the relative motion between friction roller 20 and the substrate 10 being coated with alignment film, fine hair on friction roller 20 is rubbed to the alignment film on substrate 10, wherein, the rotating direction of friction roller 20 is r, and the moving direction of substrate 10 is X, thus forms groove on alignment film.
Fig. 1 and Figure 2 shows that the display panels posted, color membrane substrates alignment film 0011 is in the below of color membrane substrates 001; Figure 3 shows that the schematic diagram of the friction process to substrate 10, be generally substrate 10 and be positioned over upward on friction board with alignment film side, friction roller 20 is placed in the top of alignment film to rub to alignment film.No matter in display panels after assembling or in the friction process of array base palte, array base palte alignment film 0021 is always positioned at above array base palte 002, the angle of described view directions 004 and array base palte alignment direction 0022 is that-135 degree remain unchanged, but in friction process, the color membrane substrates alignment film 0011 of color membrane substrates 001 to be placed upward and rub, need that when fitting the color membrane substrates 001 rubbed is turned over turnback and color membrane substrates alignment film 0011 is fitted with array base palte 002 down.
So, in the display panels shown in Fig. 1 and Fig. 2, the angle 0013 of the color membrane substrates alignment direction 0012 of view directions 004 and color membrane substrates 001 is-45 degree, view directions 004 remains unchanged, in the friction process schematic diagram shown in Fig. 3, if substrate 10 is color membrane substrates, then the color membrane substrates alignment direction of described color membrane substrates and the angle of view directions are 45 degree.
Below just for the friction process of color membrane substrates, the problems of the prior art are described.Shown in Fig. 4, in prior art when preparing TN type display panels, the groove with view directions 004 one-tenth miter angle need be formed on the color membrane substrates alignment film of color membrane substrates 100.Rubbing method has two kinds: a kind of for friction roller 200 is with the angle vertical with color membrane substrates alignment direction Z (as shown in solid arrow in Fig. 4) placement, friction roller 200 rotation, and color membrane substrates 100 moves by friction roller 200 with direction X simultaneously; Another kind is friction roller 200 rotation, and friction roller 200 is advanced through color membrane substrates 100 with color membrane substrates alignment direction Z simultaneously, and the direction of the groove finally formed on color membrane substrates 100 is color membrane substrates alignment direction Z.The direction of relative movement of color membrane substrates alignment direction Z and friction roller 200 and color membrane substrates 100, and friction roller 200 is placed on the direction vertical with color membrane substrates alignment direction Z.
Multiple chromatic photoresist 130 (comprising: red photoresistance R, green photoresistance G and blue light resistance B) that is designed to of color membrane substrates 100 becomes array arrangement, there is certain angle in design arragement direction and the color membrane substrates alignment direction Z of chromatic photoresist 130, namely color membrane substrates alignment direction Z becomes 45 degree with the longest edge of each chromatic photoresist 130.
Figure 5 shows that friction roller 200 rub each chromatic photoresist 130 time side sectional view, Figure 6 shows that friction roller 200 rub each chromatic photoresist 130 time vertical view.Known see Fig. 5 and Fig. 6, the periphery section of the existence difference of each chromatic photoresist 130, adjacent with chromatic photoresist is black matrix" 110, and namely the marginal portion 132 of each chromatic photoresist 130 exists difference in height with intermediate portion 131.Shown in Figure 7, when friction roller 200 differs from by this section the orientation diff area N that certain area can be caused in region with certain angle.The reason that described orientation diff area N is formed is: because chromatic photoresist 130 section of existence difference, marginal portion 132 is higher than the height of intermediate portion 131, when the marginal portion 132 of the fine hair contact chromatic photoresist 130 of friction roller 200 each point and center section 131, the state of fine hair has difference, again because the longest edge of friction roller 200 and chromatic photoresist 130 in angle of 45 degrees, friction roller 200 is in advancing, the marginal portion 132 of the fine hair contact chromatic photoresist 130 of each point on friction roller 200 is different with the time point of center section 131, this just causes the orientation difference of certain area.
Described orientation diff area N is subject to the double influence of the projection of chromatic photoresist 130 longest edge and the projection of most minor face, and remainder is orientation normal region is Y.And when this orientation diff area N accounting is excessive, when namely N/ (N+Y) is excessive, can causes and oppositely turn round the bad generation in territory (reversetwistdomain), the light leakage phenomena under namely making display panels there is grey state and black state.
For the display panels of high PPI (number of pixels per square inch), prior art oppositely turns round the bad incidence in territory (reversetwistdomain) to reduce, before coating PI film, need first on color membrane substrates, to form a planarization layer, namely the section difference region of filling color photoresistance, makes PI thin film coated on a flat surface.But can production cost be improved so undoubtedly, increase the time prepared by alignment film.
When preparing alignment film in prior art on other substrates, also there are the problems referred to above, as: the pixel electrode on array base palte is the section of having difference region also, therefore friction roller by the section of pixel electrode difference region time, also can produce larger orientation diff area, finally cause and oppositely turn round the bad generation in territory.
Therefore, just problem demanding prompt solution is become as how lower production cost reduces the bad incidence that display panels oppositely turns round territory.
Summary of the invention
The problem that the present invention solves is to provide a kind of substrate alignment method of display panels, the substrate of display panels and display panels, while the bad incidence in territory is oppositely turned round in reduction, reduces production cost, shortens preparation time.
For solving the problem, the invention provides a kind of substrate alignment method of display panels, comprising:
Substrate is provided, described substrate is provided with the device of multiple array arrangement;
On the upper strata of described multiple device, alignment film is set;
Friction roller is adopted to rub in order to form groove on described alignment film with substrate alignment direction to described alignment film;
One side of described device and the angle of substrate alignment direction are more than or equal to 0 degree and are less than 45 degree.
Alternatively.The zone line of described device and the fringe region section of existence difference.
Alternatively, described substrate is color membrane substrates, and described device is chromatic photoresist, and described substrate alignment direction is color membrane substrates alignment direction.
Alternatively, described substrate is array base palte, and described device is pixel electrode, and described substrate alignment direction is array base palte alignment direction.
Alternatively, described device and the angle of described substrate alignment direction be more than or equal to 0 degree and be less than 20 degree.
Alternatively, described device and the angle of substrate alignment direction equal 0 degree.
Alternatively, described device is the longest edge of device.
Alternatively, described display panels is TN type display panels, and described color membrane substrates alignment direction and view directions are in angle of 45 degrees.
Alternatively, described display panels is TN type display panels, and described array base palte alignment direction becomes-135 degree angles with view directions.
Alternatively, described friction roller rotation, described friction roller carries out moving to rub to described substrate.
Alternatively, described friction roller rotation, described substrate carries out moving to realize friction.
Alternatively, the material of described alignment film is polyimide.
In order to solve the problem, present invention also offers a kind of substrate of display panels, comprising:
Substrate, described substrate is provided with the device of multiple array arrangement;
Above described multiple device, be provided with alignment film, described alignment film comprises groove, described groove is arranged on described alignment film with first direction;
Described device while be more than or equal to 0 degree with the angle of described first direction and be less than 45 degree.
Alternatively, the zone line of described device and the fringe region section of existence difference.
Alternatively, described substrate is color membrane substrates, and described device is chromatic photoresist, and the angle at described first direction and visual angle is 45 degree.
Alternatively, described substrate is array base palte, and described device is pixel electrode, and the angle at described first direction and visual angle is-135 degree.
Alternatively, described device and the angle of described first direction be more than or equal to 0 degree and be less than 20 degree.
Alternatively, described device and the angle of first direction equal 0 degree.
Alternatively, described device is the longest edge of device.
In order to solve the problem, present invention also offers a kind of display panels, comprising:
The color membrane substrates be oppositely arranged and array base palte, and be sandwiched in the liquid crystal layer between described color membrane substrates and array base palte;
Described color membrane substrates is disposed with chromatic photoresist and color membrane substrates alignment film towards the side of liquid crystal layer, described color membrane substrates comprises the first groove on film, described first groove is arranged on described color membrane substrates alignment film with second direction, described chromatic photoresist and the angle of second direction be more than or equal to 0 degree and little 45 degree;
Described array base palte is disposed with pixel electrode and array base palte alignment film towards the side of liquid crystal layer, described array base palte alignment film comprises the second groove, described second groove is arranged on described array base palte alignment film with third direction, described pixel electrode and the angle of third direction be more than or equal to 0 degree and be less than 45 degree.
Alternatively, the zone line of described chromatic photoresist and/or described pixel electrode and the fringe region section of existence difference.
Alternatively, described chromatic photoresist and the angle of second direction be more than or equal to 0 degree and be less than 20 degree; One side of described pixel electrode and the angle of third direction are more than or equal to 0 degree and are less than 20 degree.
Alternatively, the longest edge of described chromatic photoresist and the angle of second direction are 0 degree, and the longest edge of described pixel electrode and the angle of third direction are 0 degree.
Alternatively, described display panels is TN type display panels, and the angle between described second direction and described third direction is 90 degree, and the angle of described second direction and view directions is-45 degree, and the angle of described third direction and view directions is-135 degree.
Compared with prior art, the present invention has the following advantages:
1) arrangement mode of device on substrate is changed, make the angle between one side of device and the placement direction of friction roller be more than or equal to 0 degree and be less than 45 degree, thus when making friction roller by the section of device difference region, reduce the accounting of orientation diff area, namely the bad incidence oppositely turning round territory is reduced, avoid the light leakage phenomena of the black state of pixel/grey state, and reduce production cost, shorten the time prepared by alignment film.
2) view directions of liquid crystal display is not changed.
Accompanying drawing explanation
Fig. 1 is the cut-open view of TN type display panels;
Fig. 2 is the vertical view of the type of TN shown in Fig. 1 display panels;
Fig. 3 is the schematic diagram of friction process in prior art;
Fig. 4 is the schematic diagram of color membrane substrates friction process in prior art;
Fig. 5 be in prior art friction roller rub each chromatic photoresist time side sectional view;
Fig. 6 be in prior art friction roller rub each chromatic photoresist time schematic top plan view;
Fig. 7 is the orientation diff area schematic diagram in prior art, color membrane substrates formed;
Fig. 8 is the schematic flow sheet of the substrate alignment method of the display panels that the embodiment of the present invention provides;
Fig. 9 is the schematic diagram of chromatic photoresist section difference;
Figure 10 is the schematic diagram on each limit of chromatic photoresist;
Figure 11 is one side of one embodiment of the present invention device and the schematic top plan view of color membrane substrates alignment direction relation;
Figure 12 is one side of another embodiment device of the present invention and the schematic top plan view of color membrane substrates alignment direction relation;
Figure 13 is one side of preferred embodiment for the present invention device and the schematic top plan view of color membrane substrates alignment direction relation;
Figure 14 is the schematic top plan view of embodiment of the present invention chromatic photoresist and color membrane substrates alignment direction;
Figure 15 is the schematic top plan view of embodiment of the present invention chromatic photoresist and color membrane substrates alignment direction;
Schematic top plan view when Figure 16 is embodiment of the present invention friction roller friction chromatic photoresist;
Figure 17 is the schematic diagram of the orientation diff area that Figure 16 is corresponding;
Figure 18 is the schematic top plan view of another embodiment alignment direction of the present invention and chromatic photoresist relation;
Figure 19 is the schematic diagram of the orientation diff area that Figure 18 is corresponding;
Figure 20 is the schematic top plan view of the substrate of the display panels that the embodiment of the present invention provides.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, therefore the present invention is not by the restriction of following public specific embodiment.
Just as described in the background section, in prior art, the alignment film of the substrate of display panels is arranged on array arrangement and the upper strata of the device of the section of having difference, in friction process, when friction roller region poor by the section of device, just can cause the orientation diff area of certain area.When orientation diff area accounting is excessive, just can causes and oppositely turn round the bad generation in territory.Although prior art proposed before coating PI film, first on substrate, form planarization layer oppositely turns round the bad incidence in territory to reduce, and this technical scheme improves production cost, and adds the time prepared by alignment film.
The present invention changes the arrangement mode of device on substrate, make the angle between one side of device and substrate alignment direction be more than or equal to 0 degree and be less than 45 degree, thus when making friction roller by the section of device difference region, reduce the accounting of orientation diff area, namely the bad incidence oppositely turning round territory is reduced, avoid the light leakage phenomena of the black state of pixel/grey state, and reduce production cost, shorten the time prepared by alignment film.
Be described in detail below in conjunction with accompanying drawing.
Shown in Figure 8, the substrate alignment method of the display panels that the present embodiment provides, comprising:
Step S1, provides substrate, described substrate is provided with the device of multiple array arrangement, described device and the angle of substrate alignment direction be more than or equal to 0 degree and be less than 45 degree;
Step S2, arranges alignment film on the upper strata of multiple described device;
Step S3, adopts friction roller to rub in order to form groove on described alignment film to described alignment film with substrate alignment direction.
Be described for the alignment method of the color membrane substrates at TN type display panels below, should not limit the scope of the invention at this.
First perform step S1, color membrane substrates be provided, described color membrane substrates be provided with the device of multiple array arrangement, described device and the angle of color membrane substrates alignment direction be more than or equal to 0 degree and be less than 45 degree.
Wherein, device described in the present embodiment is chromatic photoresist, is specially: red photoresistance, green photoresistance or blue light resistance, the size of each chromatic photoresist and shape are all equal.Described chromatic photoresist is the arrangement in array on the surface of described color membrane substrates.
Wherein, the zone line of described chromatic photoresist and the fringe region section of existence difference, namely there is difference in height in the marginal portion of each chromatic photoresist and intermediate portion.Shown in Figure 9, described chromatic photoresist comprises: zone line 311 and fringe region 312, there is difference in height between described fringe region 312 and zone line 311.
Wherein, described chromatic photoresist is arranged in array, and the parameter such as spacing between the concrete number of chromatic photoresist, chromatic photoresist is determined according to concrete needs, and it should not limit the scope of the invention.
Wherein, described color membrane substrates alignment direction is vertical with the friction roller placement direction in follow-up friction process.Because display panels described in the present embodiment is TN type display panels, therefore the angle of color membrane substrates alignment direction and view directions should be 45 degree, described view directions is identical with prior art, and the clockwise direction of view directions is just, the counter clockwise direction of view directions is negative.
As long as described chromatic photoresist while be more than or equal to 0 degree with the angle of color membrane substrates alignment direction and be less than 45 degree, as 40 degree, 30 degree, 10 degree or 0 degree etc.In order to reduce orientation diff area during follow-up friction, preferably, being more than or equal to 20 degree with the angle of color membrane substrates alignment direction and being less than or equal to 0 degree, as 10 degree or 0 degree etc. of described chromatic photoresist.
In the substrate alignment method of the display panels provided at the present embodiment, arbitrary limit that can refer to described chromatic photoresist of described chromatic photoresist.Shown in Figure 10, particularly, arbitrary limit of described chromatic photoresist 310 can be its most minor face a, secondary minor face b, vice-minister limit c and longest edge d, and described most minor face a is parallel with described minor face b, and described longest edge d is parallel with described vice-minister limit c.In order to reduce orientation diff area during follow-up friction, preferably, the most minor face a referring to described chromatic photoresist of described device.
As an Alternate embodiments of the present embodiment, shown in Figure 11, described chromatic photoresist and the angle of color membrane substrates alignment direction be more than or equal to 0 degree and be less than 45 degree and refer to: the most angle between minor face a and color membrane substrates alignment direction Z of described chromatic photoresist 310 is 30 degree.
As another Alternate embodiments of the present embodiment, shown in Figure 12, described chromatic photoresist and the angle of color membrane substrates alignment direction be more than or equal to 0 degree and be less than 45 degree and refer to: the most angle between minor face a and color membrane substrates alignment direction Z of described chromatic photoresist 310 is 10 degree.
As a preferred implementation of the present embodiment, shown in Figure 13, described chromatic photoresist and the angle of color membrane substrates alignment direction be more than or equal to 0 degree and be less than 45 degree and refer to: the angle between the longest edge d of described chromatic photoresist 310 and color membrane substrates alignment direction Z is 0 degree.
Shown in participation Figure 14, in the present embodiment, color membrane substrates 300 side is provided with the chromatic photoresist 310 of black matrix" 320 and multiple array arrangement, between the longest edge of described chromatic photoresist 310 and color membrane substrates alignment direction, the angle of Z is 0 degree.Wherein, described chromatic photoresist 310 comprises: red photoresistance R, green photoresistance G and blue light resistance B.
Then perform step S2, alignment film is set in the upper layer side of multiple chromatic photoresist.
Alignment film described in the present embodiment comprises polyimide (PI).In other embodiments of the invention, other materials also can be selected as alignment film, should not limit the scope of the invention at this.
Wherein, the described method arranging alignment film can be spin coating or printing, before arranging alignment film, can also clean described color membrane substrates 300.The embodiment arranging alignment film is known for a person skilled in the art, therefore does not repeat them here.
Shown in Figure 15, finally perform step S3, adopt friction roller 200 to rub in order to form groove on described alignment film with color membrane substrates alignment direction Z to described alignment film, described friction roller 200 is vertical with color membrane substrates alignment direction Z.
Display panels described in the present embodiment is TN type display panels, therefore the angle of described color membrane substrates alignment direction Z and view directions is 45 degree, view directions is identical with prior art, color membrane substrates alignment direction Z is identical with prior art with the angle of view directions, and namely color membrane substrates alignment direction Z is also identical with prior art.
Wherein, the rotation of described friction roller 200, in order to realize the friction of friction roller 200 pairs of color membrane substrates 300, at least can adopt any one in following two kinds of modes: one is that described friction roller 200 carries out rotation, and the alignment film on it is rubbed by color membrane substrates 300 according to color membrane substrates alignment direction Z (in Figure 15 figure direction shown in solid line), and the position Relative friction roller 200 of described color membrane substrates 300 is constant; Two is that described friction roller 200 carries out rotation, and described color membrane substrates 300 carries out moving to rub to the alignment film on it.
Shown in Figure 16, when the angle between the longest edge and color membrane substrates alignment direction Z of described chromatic photoresist 310 is 0 degree, friction roller 200 by the orientation diff area N that produces during the section of chromatic photoresist 310 difference region and orientation normal region Y as shown in figure 17.Can be found by comparison diagram 7 and Figure 17, the accounting N/ (N+Y) of the orientation diff area adopting the present embodiment method to obtain obviously reduces, and the alignment film therefore now obtained can reduce oppositely turns round the bad incidence in territory.
Shown in Figure 18, when the most angle between minor face and color membrane substrates alignment direction Z of described chromatic photoresist 310 is 0 degree, the orientation abnormal area N produced during the section difference region of friction roller 200 by chromatic photoresist 310 and orientation normal region Y as shown in figure 19.Can be found by comparison diagram 7 and Figure 19, the accounting N/ (N+Y) of the orientation diff area adopting the present embodiment method to obtain obviously reduces, and the alignment film therefore now obtained still can reduce oppositely turns round the bad incidence in territory.
In another embodiment of the present invention, can also be used for carrying out orientation to other substrates of TN type display panels, as: array substrate carries out orientation.
If array substrate carries out orientation, then step is:
Perform step S1, array base palte be provided, described array base palte be provided with the pixel electrode of multiple array arrangement, described pixel electrode and the angle of array base palte alignment direction be more than or equal to 0 degree and be less than 45 degree;
Perform step S2, alignment film is set on the upper strata of described multiple pixel electrode;
Perform step S3, adopt friction roller to rub in order to form groove on described alignment film to described alignment film with array base palte alignment direction.
The alignment direction of described array base palte and the angle of view directions should be-135 degree, and described view directions is identical with prior art, and the clockwise direction of view directions is just, the counter clockwise direction of view directions is negative.
This alignment method also can reduce friction roller by orientation diff area during pixel electrode section difference region, namely orientation diff area accounting is reduced, save production cost, shorten the time prepared by alignment film, reduce simultaneously and oppositely turn round the bad incidence in territory.
It should be noted that, above-mentioned is all TN type display panels with display panels for example is described.In other embodiments of the invention, described display panels can also be STN type display panels and DSTN type display panels.With TN type display panels unlike, when display panels be STN type or DSTN type display panels time, described view directions is different with the angle of color membrane substrates alignment direction, view directions is also different with array base palte alignment direction, this depends on the twist angle of dissimilar display panels, does not limit the application of the alignment method of display panels provided by the invention.
Correspondingly, the present embodiment additionally provides a kind of substrate of display panels, comprising:
Substrate, described substrate is provided with the device of multiple array arrangement;
The described upper strata being provided with the device of multiple array arrangement is provided with alignment film, described alignment film comprises groove, described groove is arranged on described alignment film with first direction;
Described device while be more than or equal to 0 degree with the angle of described first direction and be less than 45 degree.
Wherein, the zone line of described device and the fringe region section of existence difference.When described substrate is color membrane substrates, described device is chromatic photoresist; When described substrate is array base palte, described device is pixel electrode.
Wherein, described first direction is the alignment direction of described substrate.
Wherein, in order to reduce to prepare orientation diff area accounting in alignment film process, preferably, the angle of described device and described first direction is more than or equal to 0 degree and is less than or equal to 20 degree.
Wherein, described device can be arbitrary limit of device.
As a preferred implementation, shown in Figure 20, the side of described substrate 400 is provided with the device 410 of multiple array arrangement, the upper surface of described substrate 400 is provided with alignment film (not shown), described alignment film comprises the multiple parallel groove (not shown)s arranged with first direction Z.
Correspondingly, the present embodiment additionally provides a kind of display panels, comprising:
The color membrane substrates be oppositely arranged and array base palte, and be sandwiched in the liquid crystal layer between described color membrane substrates and array base palte;
Described color membrane substrates is disposed with black matrix", chromatic photoresist and color membrane substrates alignment film towards the side of liquid crystal layer, described color membrane substrates alignment film comprises the first groove, described first groove is arranged on described color membrane substrates alignment film with second direction, described chromatic photoresist and the angle of second direction be more than or equal to 0 degree and be less than 45 degree;
Described array base palte is disposed with pixel electrode and array base palte alignment film towards the side of liquid crystal layer, described array base palte alignment film comprises the second groove, described second groove is arranged on described second alignment film with third direction, described pixel electrode and the angle of third direction be more than or equal to 0 degree and be less than 45 degree.
Wherein, the zone line of described chromatic photoresist and described pixel electrode and the fringe region all section of existence differences.
Wherein, in order to reduce to prepare orientation diff area accounting in alignment film process, preferably, described chromatic photoresist and the angle of second direction be more than or equal to 0 degree and be less than or equal to 20 degree; One side of described pixel electrode and the angle of third direction are more than or equal to 0 degree and are less than or equal to 20 degree.
As one preferred embodiment, the longest edge of described chromatic photoresist and the angle of second direction are 0 degree, and the longest edge of described pixel electrode and the angle of third direction are 0 degree.
Wherein, described display panels can be TN type display panels, STN type display panels or DSTN type display panels.When described display panels is TN type display panels, the angle between described second direction and described third direction is 90 degree; Described display panels is STN type display panels or DSTN type display panels, and the angle between described second direction and described third direction is 180 degree to 270 degree.
The display panels provided due to the present embodiment does not change the groove of alignment film and the angle of substrate, does not therefore change the angular field of view (comprising optimal viewing angle value) of liquid crystal display.But because the present embodiment changes the placement direction of device on substrate, thus make to prepare in the process of alignment film, friction roller is reduced greatly by the orientation diff area produced during device section difference region, thus without the need under the prerequisite of planarization layer, save production cost, shorten the time prepared by alignment film, reduce simultaneously and oppositely turn round the bad incidence in territory.
Disclose as above with preferred embodiment although the present invention is own, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (19)
1. a substrate alignment method for display panels, is characterized in that, comprising:
There is provided substrate, described substrate is provided with the device of multiple array arrangement, two opposite side of described device are parallel to each other, and adjacent both sides are mutually vertical; Two opposite side of described device and the limit of described substrate both not parallel also out of plumb;
On the upper strata of described multiple device, alignment film is set;
Friction roller is adopted to rub in order to form groove on described alignment film with substrate alignment direction to described alignment film;
In described adjacent both sides, described device and the angle of substrate alignment direction equal 0 degree, and the friction roller that the another side of described device is in contact with it is parallel.
2. the substrate alignment method of display panels as claimed in claim 1, is characterized in that, the zone line of described device and the fringe region section of existence difference.
3. the substrate alignment method of display panels as claimed in claim 1, it is characterized in that, described substrate is color membrane substrates, and described device is chromatic photoresist, and described substrate alignment direction is color membrane substrates alignment direction.
4. the substrate alignment method of display panels as claimed in claim 1, it is characterized in that, described substrate is array base palte, and described device is pixel electrode, and described substrate alignment direction is array base palte alignment direction.
5. the substrate alignment method of display panels as claimed in claim 1, is characterized in that, described device be the longest edge of device.
6. the substrate alignment method of display panels as claimed in claim 3, it is characterized in that, described display panels is TN type display panels, and described color membrane substrates alignment direction and view directions are in angle of 45 degrees.
7. the substrate alignment method of display panels as claimed in claim 4, it is characterized in that, described display panels is TN type display panels, and described array base palte alignment direction becomes-135 degree angles with view directions.
8. the substrate alignment method of display panels as claimed in claim 1, it is characterized in that, described friction roller rotation, described friction roller carries out moving to rub to described substrate.
9. the substrate alignment method of display panels as claimed in claim 1, is characterized in that, described friction roller rotation, and described substrate carries out moving to realize friction.
10. the substrate alignment method of display panels as claimed in claim 1, it is characterized in that, the material of described alignment film is polyimide.
The substrate of 11. 1 kinds of display panels, comprising:
Substrate, described substrate is provided with the device of multiple array arrangement,
It is characterized in that, two opposite side of described device are parallel to each other, and adjacent both sides are mutually vertical; Two opposite side of described device and the limit of described substrate both not parallel also out of plumb;
Above multiple described device, be provided with alignment film, described alignment film comprises groove, described groove is arranged on described alignment film with first direction;
In described adjacent both sides, described device equal 0 degree with the angle of described first direction, and the friction roller that the another side of described device is in contact with it is parallel.
The substrate of 12. display panels as claimed in claim 11, is characterized in that, the zone line of described device and the fringe region section of existence difference.
The substrate of 13. display panels as claimed in claim 11, it is characterized in that, described substrate is color membrane substrates, and described device is chromatic photoresist, and the angle at described first direction and visual angle is 45 degree.
The substrate of 14. display panels as claimed in claim 11, it is characterized in that, described substrate is array base palte, and described device is pixel electrode, and the angle at described first direction and visual angle is-135 degree.
The substrate of 15. display panels as claimed in claim 11, is characterized in that, described device be the longest edge of device.
16. 1 kinds of display panels, is characterized in that, comprising:
The color membrane substrates be oppositely arranged and array base palte, and be sandwiched in the liquid crystal layer between described color membrane substrates and array base palte;
Described color membrane substrates is disposed with chromatic photoresist and color membrane substrates alignment film towards the side of liquid crystal layer, described color membrane substrates comprises the first groove on film, described first groove is arranged on described color membrane substrates alignment film with second direction, described chromatic photoresist comprises two to the limit be parallel to each other, and adjacent both sides are mutually vertical; Two opposite side of described chromatic photoresist and the limit of described color membrane substrates both not parallel also out of plumb, described chromatic photoresist and the angle of second direction equal 0 degree;
Described array base palte is disposed with pixel electrode and array base palte alignment film towards the side of liquid crystal layer, described array base palte alignment film comprises the second groove, described second groove is arranged on described array base palte alignment film with third direction, described pixel electrode comprises two to the limit be parallel to each other, and adjacent both sides are mutually vertical; Two opposite side of described pixel electrode and the limit of described array base palte both not parallel also out of plumb, described pixel electrode and the angle of third direction equal 0 degree.
17. display panels as claimed in claim 16, is characterized in that, the zone line of described chromatic photoresist and/or described pixel electrode and the fringe region section of existence difference.
18. display panels as claimed in claim 16, it is characterized in that, the longest edge of described chromatic photoresist and the angle of second direction are 0 degree, and the longest edge of described pixel electrode and the angle of third direction are 0 degree.
19. display panels as claimed in claim 16, it is characterized in that, described display panels is TN type display panels, angle between described second direction and described third direction is 90 degree, the angle of described second direction and view directions is-45 degree, and the angle of described third direction and view directions is-135 degree.
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| CN104749822A (en) * | 2015-04-07 | 2015-07-01 | 武汉华星光电技术有限公司 | Rubbing alignment method for alignment layer |
| CN105527759B (en) | 2016-03-09 | 2018-10-30 | 京东方科技集团股份有限公司 | LCD alignment method, dot structure, display panel and display device |
| CN105676541A (en) * | 2016-04-14 | 2016-06-15 | 京东方科技集团股份有限公司 | Friction orienting method and display panel manufactured through method |
| CN105739196A (en) * | 2016-04-28 | 2016-07-06 | 深圳市华星光电技术有限公司 | Liquid crystal panel and liquid crystal display |
| CN108363243B (en) * | 2018-03-09 | 2021-11-23 | 京东方科技集团股份有限公司 | Friction alignment substrate, manufacturing method thereof and liquid crystal display panel |
| CN111624819B (en) * | 2020-06-10 | 2022-09-02 | 昆山龙腾光电股份有限公司 | Friction alignment method and device |
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