CN106646968A - Display base board and production method, LED panel and LED device - Google Patents
Display base board and production method, LED panel and LED device Download PDFInfo
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- CN106646968A CN106646968A CN201611029784.6A CN201611029784A CN106646968A CN 106646968 A CN106646968 A CN 106646968A CN 201611029784 A CN201611029784 A CN 201611029784A CN 106646968 A CN106646968 A CN 106646968A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133357—Planarisation layers
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Abstract
The embodiment of invention discloses a display base board and a production method, an LED panel and an LED device. The display base board comprises a display area, a non-display area surrounding the display area and a substrate. A color barrier layer is arranged in the display area. A flattening layer is located above the color barrier layer, and extends to the non-display layer. The flattening layer which is located in the non-display area comprises a first part and a second part. The distance between first part of the flattening layer and the display area is larger than the distance between the second part of the flattening layer and the display area. The thickness of the first part of the flattening layer is smaller than the thickness of the second part of the flattening layer. An alignment film is located above the flattening layer. Through the technical scheme, the accumulation of the scraps of the alignment film in the intersection between the display area and the non-display area is reduced or avoided, the image quality and passing rate of the LED screen devices are enhanced.
Description
Technical field
The present embodiments relate to display technology field, more particularly to a kind of display base plate and preparation method, liquid crystal display
Panel and liquid crystal indicator.
Background technology
Flat-panel monitor is widely used in portable display due to frivolous and low energy consumption advantage.It is aobvious in various flat boards
In showing device, liquid crystal display device due to its fine definition and the advantage of picture quality, be widely used in computer monitor,
Notebook computer and TV aspect.Therefore, improve the picture quality of liquid crystal display device and improve its service life and be subject to wide
The favor of big researcher and industrial quarters.
Conventional liquid crystal part can be made up of two substrates being oppositely arranged, and such as pixel electrode is formed on substrate
And there is electrode in the field of public electrode.Liquid crystal layer can be intervened between two substrates, any one base in two substrates
Color blocking layer is set on plate.Generally, according to a certain region on liquid crystal display device can display image, by corresponding to it
The region of substrate is divided into viewing area and non-display area.Generally, color blocking layer is provided only on the viewing area of substrate, and non-aobvious
Show and be not provided with area color blocking layer, be so easy for ghost occur in the intersection of color blocking layer edge, i.e. viewing area and non-display area
Point (Ghost mura), causes to show bad, has a strong impact on the picture quality and yields of liquid crystal display device.
The content of the invention
To solve the above problems, inventor has found, non-display area does not have color blocking layer and has color blocking layer in viewing area
Design result in, and a step occurs in the intersection of viewing area and non-display area.In friction matching, in viewing area and non-aobvious
The step for showing the intersection in area easily produces the accumulation of alignment film chip, so as to produce periphery ghost point (Ghost mura), causes
Show bad.In view of this, a kind of display base plate and preparation method, display panels and liquid crystal are embodiments provided
Display device, to realize avoiding showing bad phenomenon, improves picture quality and yields.
In a first aspect, a kind of display base plate is embodiments provided, including：
Viewing area and the non-display area around the viewing area；Substrate；Color blocking layer, the color blocking layer is arranged on the display
Area；
Planarization layer above the color blocking layer, the planarization layer extends to the non-display area, wherein, it is located at
The planarization layer of the non-display area includes Part I and Part II, and the Part I of the planarization layer is apart from institute
State the distance of viewing area more than the planarization layer Part II apart from the viewing area distance, the of the planarization layer
Thickness of the thickness of a part less than the Part II of the planarization layer；
Alignment film above the planarization layer.
Second aspect, the embodiment of the present invention additionally provides a kind of display panels, including：
First substrate and the second substrate being oppositely arranged with the first substrate, the first substrate and the second substrate
Between be provided with liquid crystal layer, the first substrate or the second substrate are the arbitrary substrate in above-mentioned first aspect.
The third aspect, the embodiment of the present invention additionally provides a kind of liquid crystal indicator, including the liquid crystal of above-mentioned second aspect
Display floater.
Fourth aspect, embodiments provides a kind of preparation method of display base plate, including：
Substrate is provided；
Square into color blocking layer over the substrate, the color blocking layer is arranged on viewing area；
Planarization layer is formed, the planarization layer is located at color blocking layer top, and extends to non-display area, wherein, position
Include Part I and Part II, the Part I distance of the planarization layer in the planarization layer of the non-display area
The distance of the viewing area is more than the distance of the Part II apart from the viewing area of the planarization layer, the planarization layer
Thickness of the thickness of Part I less than the Part II positioned at the planarization layer；
Alignment film is formed above the planarization layer.
The present invention is aobvious less than being close in planarization layer away from the thickness of the Part I of viewing area by arranging planarization layer
Show the thickness of the Part II in area so that first can be formed with the intersection of correspondence Part I and Part II on alignment film
Step, can play the effect for piling up alignment film chip at the first step, compared to prior art alignment film chip whole heap
The product viewing area of correspondence planarization layer and intersection of non-display area on alignment film are formed on step, it is possible to reduce or avoid matching somebody with somebody
To film chip viewing area and the intersection of non-display area accumulation, and then improve liquid crystal display device picture quality and non-defective unit
Rate.
Description of the drawings
Fig. 1 a are a kind of cross-sectional views of display base plate provided in an embodiment of the present invention；
Fig. 1 b are the cross-sectional views of another kind of display base plate provided in an embodiment of the present invention；
Fig. 2 is the cross-sectional view of another display base plate provided in an embodiment of the present invention；
Fig. 3 is the cross-sectional view of another display base plate provided in an embodiment of the present invention；
Fig. 4 is a kind of cross-sectional view of display panels provided in an embodiment of the present invention；
Fig. 5 is a kind of flow chart of the preparation method of display base plate provided in an embodiment of the present invention；
Fig. 6 is the flow chart of the preparation method of another display base plate provided in an embodiment of the present invention；
Fig. 7 is the flow chart of the preparation method of another display base plate provided in an embodiment of the present invention；
Fig. 8 a- Fig. 8 c are the corresponding cross-sectional view of each step in Fig. 5；
Fig. 9 a- Fig. 9 e are the corresponding cross-sectional view of each step in Fig. 6；
Figure 10 a- Figure 10 e are the corresponding cross-sectional view of each step in Fig. 7.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in further detail.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
A kind of display base plate is embodiments provided, including：Substrate；Color blocking layer, color blocking layer is arranged on viewing area；Position
Planarization layer above color blocking layer, planarization layer extends to non-display area, wherein, the planarization layer positioned at non-display area includes
Part I and Part II, the Part I of planarization layer apart from viewing area distance more than planarization layer Part II away from
With a distance from viewing area, the thickness of the Part I of planarization layer is less than the thickness of the Part II positioned at planarization layer.In addition,
Also include being located at the alignment film above planarization layer, correspondence Part I is formed with the intersection of Part II on the alignment film
First step.
In the embodiment of the present invention, the color blocking layer of display base plate typically combines evaporation process form by photoetching process, in addition,
Can be by using intermediate tone mask be above color blocking layer and non-display area forms planarization layer, so that first of planarization layer
Thickness of the thickness for dividing less than the Part II positioned at planarization layer.
In the present invention, by arranging the thickness of Part I of planarization layer the Part II for being located at planarization layer is less than
Thickness, therefore, it can have certain thickness difference in the intersection of Part I and Part II, accordingly, be arranged on flat
Change the alignment film above layer and form first step in the intersection of Part I and Part II.Alignment film is in friction process processing procedure
In can produce chip, the first step can play pile up alignment film chip effect.
In addition, in the embodiment of the present invention, the thickness that can also pass through the Part II of setting planarization layer is more than color blocking layer
The thickness of top planarization layer, and the intersection in Part II and viewing area has certain thickness difference, relative to existing
The thickness of the Part II of planarization layer is equal to the thickness of color blocking layer top planarization layer in technology, eliminates as far as possible due to arranging color
The planarization layer that resistance layer is brought in viewing area and the difference in height of non-display area intersection, according to the Part II of above-mentioned planarization layer
Thickness facilities, wherein height may be still below viewing area planarization layer height, now alignment film correspondence it is flat
The intersection of the Part II and viewing area of changing layer forms second step.It is broken that alignment film chip is produced in friction process processing procedure
Bits major part is deposited in first step, and the second step can further pile up a small amount of alignment film chip, accordingly, with respect to existing skill
Alignment film chip is all deposited at second step in art, it is possible to reduce in the accumulation of viewing area and non-display area intersection.Separately
Outward, can further by the thickness of the Part II of control planarization layer, so that the height of the Part II of planarization layer
Degree is highly identical with the planarization of viewing area, forms a planar structure, then will not be in viewing area and the boundary of non-display area
Alignment film chip is piled up at place, and above-mentioned two situations can improve the picture quality and yields of liquid crystal display device.
It is more than the basic scheme of the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, to the embodiment of the present invention
In technical scheme be clearly and completely described.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Under the premise of making creative work, the every other embodiment for being obtained belongs to the scope of protection of the invention.
Fig. 1 a are a kind of cross-sectional views of display base plate provided in an embodiment of the present invention.Display base plate includes substrate
1st, color blocking layer 2, planarization layer 3 and alignment film 4, wherein color blocking layer 2 is arranged on viewing area；Planarization layer 3 is located at the upper of color blocking layer 2
Side, planarization layer 3 extends to non-display area, wherein, the planarization layer 3 positioned at non-display area B includes Part I 31 and second
Part 32, the Part I 31 of planarization layer 3 is more than the Part II 32 of planarization layer 3 apart from aobvious apart from the distance of viewing area A
Show the distance of area A, the thickness h 1 of the Part I 31 of planarization layer 3 is less than the thickness of the Part II 32 positioned at planarization layer 3
h2；Alignment film 4 is located at the top of planarization layer 3.
On the basis of above-described embodiment, optionally, the boundary of correspondence Part I 31 and Part II 32 on alignment film 4
Place is formed with first step 5.Specifically, above-mentioned first step 5 is arranged on the non-display area B of display base plate, by rubbing
The alignment film talus accumulation produced during orientation is at first step 5, it is possible to reduce or avoid viewing area A's and non-display area B
Intersection piles up alignment film chip, so as to avoid the appearance of periphery Ghost mura, further prevents alignment film chip from sliding into
Viewing area A, forms the protection to viewing area A, and arrival improves the picture quality of liquid crystal display device and the effect of yields.
Optionally, the thickness h 3 positioned at the planarization layer 3 of the top of color blocking layer 2 is less than the thickness h 2 of Part II 32.Color blocking
The planarization layer 3 of the top of layer 2 is located at the viewing area A of display base plate, and the Part II 32 of planarization layer 3 is located at display base plate
Non-display area B, by arranging the thickness h 3 of the planarization layer 3 positioned at viewing area A non-display area B planarization layers 3 second are less than
Divide 32 thickness h 2, relative to prior art, it is possible to reduce positioned at viewing area A and the difference in height of the alignment film of non-display area B, this
Sample is arranged, and the intersection accumulation alignment film chip in viewing area A and non-display area B can be as far as possible reduced or avoided, and then is improved
The picture quality and yields of liquid crystal display device.
Optionally, the thickness h 2 of Part II 32 is at least big than the thickness h 3 of the planarization layer 3 positioned at the top of color blocking layer 2
0.5 μm, the height of the thickness planarization layer of the top of close the color blocking layer 2 so that height on its top is tried one's best by improving Part II
Degree, to reduce difference in height therebetween, can avoid broken in the excessive accumulation alignment film of viewing area and non-display area intersection
Bits.
Optionally, thickness h 3 big 1.5 μm of the thickness h 2 of Part II 32 than the planarization layer 3 positioned at the top of color blocking layer 2
～2 μm.The thickness for considering general color blocking layer 2 up till now is generally 1.5 μm～2 μm, therefore can be by the thickness of Part II 32
H2 ratios are located at 3 big 1.5 μm～2 μm of the thickness h of the planarization layer 3 of the top of color blocking layer 2, can reduce in alignment film 4 aobvious as far as possible
Show the difference in height that area A and non-display area B intersections are formed, accumulation alignment film chip is reduced or avoided.
Optionally, with reference to described in above-described embodiment, arranged according to the thickness h 2 of the Part II 32 to planarization layer,
The intersection of the planarization layer 3 in the top of color blocking layer 2 in place and Part II 32 can be caused, i.e., in viewing area A and non-display
The intersection of area B, alignment film 4 can be planar structure, it is possible to have certain difference in height, form second step 6, and this second
The shoulder height difference drop that the difference in height of step 6 is formed relative to the intersection in prior art in viewing area A and non-display area B
It is low so that can less to pile up alignment film chip, in above-mentioned two situations, the picture quality of liquid crystal display device can be improved
And yields.Wherein Fig. 1 a show the embodiment with second step 6, for alignment film is viewing area A's and non-display area B
Intersection is the embodiment of planar structure, may refer to shown in Fig. 1 b.
In the embodiment shown in above-mentioned Fig. 1 a and Fig. 1 b, first step therein 5 is arc-shaped step, furthermore it is also possible to
Right angle step or oblique line step are set to, and second step therein 6 is arc-shaped step, furthermore it is also possible to be set to right angle
Step or oblique line step.The implementation process of the present invention of concrete shape in to(for) first step and second step can be according to actual work
Skill situation is selected, and this is not limited.
In the above embodiment of the present invention, wherein being provided with color blocking layer on display base plate, liquid crystal display is specifically applied to
During technical field, the display base plate can be color membrane substrates.Furthermore it is also possible to be the array base palte for being integrated with color blocking layer, array
Thin film transistor (TFT) array, pixel electrode, public electrode etc. generally can be also provided with substrate, following two embodiments are respectively with aobvious
Show substrate as a example by array base palte, to illustrate to being provided with the structure of array base palte of color blocking layer.
Fig. 2 is the cross-sectional view of another display base plate provided in an embodiment of the present invention.Display base plate includes lining
Bottom 1, color blocking layer 2, planarization layer 3 and alignment film 4, color blocking layer 2 is arranged on viewing area A, and planarization layer 3 is located at the upper of color blocking layer 2
Side, planarization layer 3 extends to non-display area B, wherein, the planarization layer 3 positioned at non-display area B includes Part I 31 and second
Part 32, the Part I 31 of planarization layer 3 is more than the Part II 32 of planarization layer 3 apart from aobvious apart from the distance of viewing area A
Show the distance of area A, the thickness of the Part I 31 of planarization layer 3 is matched somebody with somebody less than the thickness of the Part II 32 positioned at planarization layer 3
The top of planarization layer 3 is located to film 4.
In addition, the display base plate in the embodiment of the present invention also includes thin film transistor (TFT) array 7, pixel electrode and common electrical
Pixel electrode and public electrode are arranged on film layer 8 in pole, this enforcement, the position of pixel electrode and public electrode in film layer 8
Relation the present embodiment is not limited, and can be that same layer is arranged, or and different layer is arranged, and color blocking layer 2 is formed in pixel electrode
With the top of public electrode place film layer 8, further, planarization layer 3 and alignment film 4 are arranged on the top of color blocking layer 2.
Fig. 3 is the cross-sectional view of another display base plate provided in an embodiment of the present invention.Display base plate includes lining
Bottom 1, color blocking layer 2, planarization layer 3 and alignment film 4, color blocking layer 2 is arranged on viewing area A, and planarization layer 3 is located at the upper of color blocking layer 2
Side, planarization layer 3 extends to non-display area B, wherein, the planarization layer 3 positioned at non-display area B includes Part I 31 and second
Part 32, the Part I 31 of planarization layer 3 is more than the Part II 32 of planarization layer 3 apart from aobvious apart from the distance of viewing area A
Show the distance of area A, the thickness of the Part I 31 of planarization layer 3 is matched somebody with somebody less than the thickness of the Part II 32 positioned at planarization layer 3
The top of planarization layer 3 is located to film 4.
In addition, the display base plate in the present embodiment also includes thin film transistor (TFT) array 7, pixel electrode and public electrode, this
Pixel electrode and public electrode are arranged on film layer 8 in enforcement, the position relationship sheet of pixel electrode and public electrode in film layer 8
Embodiment is not limited, and can be that same layer is arranged, or and different layer is arranged, and pixel electrode and public electrode are both formed in color
The top of resistance layer 2, can be top that pixel electrode and public electrode place film layer 8 are arranged on planarization layer 3 specifically.
In embodiment shown in the above-mentioned Fig. 2 and Fig. 3 of the present invention, for display floater for array base palte situation, specifically
Also include peripheral driver circuit 9 in non-display area B, the planarization layer 3 positioned at non-display area B covers peripheral driver circuit 9, generally
The peripheral drive circuit 9 is used to provide drive signal for the thin film transistor (TFT) array 7 in viewing area, and typically with above-mentioned film
Transistor array 7 is arranged with layer.In the above embodiment of the present invention, especially second of the planarization layer positioned at non-display area B
When partial thickness increases, the effect of protection peripheral drive circuit 9 can be played, physical stroke is not likely to produce in friction matching
Wound, and then can effectively protect peripheral driver circuit 9.
In the above embodiment of the present invention, wherein the thickness of the Part I of the planarization layer of non-display area is less than Part II
Thickness, and the thickness of planarization layer Part II equally can be more than viewing area planarization layer thickness, for viewing area
Planarization layer thickness and Part I planarization layer thickness between relation, can arrange according to actual needs, if
The thickness of the planarization layer of Part I is more than the thickness of the planarization layer of viewing area, and the planarization layer of above-mentioned non-display area B
Part II thickness it is larger the same, it is also possible to play a part of to protect peripheral drive circuit, but do not have in peripheral drive circuit
In the case of having the planarization layer lower section for extending to Part I, then the thickness that can cause the planarization layer of Part I is less than
The thickness of the planarization layer of viewing area.In addition, for the thickness of the alignment film above planarization layer, generally, all can set
It is set to uniform in the thickness of viewing area and non-display area.
Fig. 4 is a kind of cross-sectional view of display panels provided in an embodiment of the present invention.Display panels
Including first substrate 10 and the second substrate 20 being oppositely arranged with first substrate 10, set between first substrate 10 and second substrate 20
Liquid crystal layer 30 is equipped with, first substrate 10 or second substrate 20 are using the arbitrary described display base plate in above-described embodiment.
Optionally, also including first of the sealed plastic box 40 for being arranged on the periphery of liquid crystal layer 30, sealed plastic box 40 and planarization layer 3
Points 31 and the intersection of Part II 32 be correspondingly arranged.
Display panels provided in an embodiment of the present invention, first substrate or second substrate are provided using above-described embodiment
The thickness of the Part I of the planarization layer of display base plate, wherein display base plate is less than the Part II positioned at the planarization layer
Thickness, alignment film correspondence Part I and the intersection of Part II are formed with first step, can rise at the first step
To the effect for piling up alignment film chip, compared to prior art alignment film chip correspondence planarization layer on alignment film is all deposited in
Viewing area and the intersection of non-display area formed on step, it is possible to reduce or avoid alignment film chip in viewing area and non-display
The accumulation of the intersection in area, and then improve the picture quality and yields of liquid crystal display device.Further, by planarizing
It is less that the thickness of layer Part I is arranged, and especially the thickness in the Part I of planarization layer is less than the planarization of viewing area
During the thickness of layer, when sealed plastic box is arranged, the sealed plastic box of increase correspondence Part I that can be relative is perpendicular to first substrate
With the thickness on second substrate direction, for the sealed plastic box of same volume, then sealed plastic box can be reduced parallel to first substrate
With the width on second substrate direction, and then the width of the non-display area of display panels can be further reduced, be realized narrow
Frame.
Present invention also offers a kind of liquid crystal indicator, liquid crystal indicator includes the liquid crystal according to above-described embodiment
Show panel, and with above-mentioned display panels identical technique effect.
Based on same inventive concept, the embodiment of the present invention also provides a kind of preparation method of display base plate.Fig. 5 is the present invention
A kind of schematic flow sheet of the preparation method of display base plate that embodiment is provided.Fig. 8 a- Fig. 8 c are that each step is corresponding in Fig. 5 to be cutd open
Face structural representation, as shown in figure 5, the method for the present embodiment comprises the steps：
Step S110, offer substrate 1.
Step S120, square into color blocking layer 2 on substrate 1, color blocking layer 2 is arranged on viewing area A.
Step S130, formation planarization layer 3, planarization layer 3 is located at the top of color blocking layer 2, and extends to non-display area B, its
In, include Part I 31 and Part II 32 positioned at the planarization layer 3 of non-display area B, the Part I 31 of planarization layer 3 away from
It is more than the distance of the Part II 32 apart from viewing area A of planarization layer 3, the Part I of planarization layer 3 with a distance from the A of viewing area
Thickness of 31 thickness less than the Part II 32 positioned at planarization layer 3.
Step S140, form alignment film 4 in the top of planarization layer 3.
Preparation method provided in an embodiment of the present invention, by arranging thickness of the planarization layer away from the Part I of viewing area
Less than the thickness of the Part II in the close viewing area of planarization layer so that correspondence Part I and Part II on alignment film
Intersection is formed with first step, the effect for piling up alignment film chip can be played at the first step, compared to prior art
Alignment film chip is all deposited in the viewing area of correspondence planarization layer and the intersection of non-display area on alignment film and is formed on step,
Accumulation of the alignment film chip in viewing area and the intersection of non-display area can be reduced or avoided, and then improves liquid crystal display device
Picture quality and yields.
Optionally, the step of planarization layer 3 are formed in above-mentioned steps S130 can be specially：Using intermediate tone mask in color
The top of resistance layer 2 and non-display area B form planarization layer 3, so that the thickness of the Part I 31 of planarization layer 3 is flat less than being located at
Change the thickness of the Part II 32 of layer 3.
Half-tone mask therein can be the mask in the region for including having different light transmissions.For example, halftoning is covered
Mould can include the transmission region of all light of transmission, hinder the lightproof area of all light and through the translucent of a part of light
Region.Translucent area can include the slit of multiple tight settings, or for controlling the thin metal layer of light exposure.This enforcement
In example, the different planarization layer of thickness can be formed in same processing step by using intermediate tone mask version.
Optionally, the step of planarization layer 3 are formed in above-mentioned steps S130 can also include：Using intermediate tone mask so that
The thickness of Part II 32 is less than positioned at the thickness of the planarization layer 3 of the top of color blocking layer 2.Same as above, by using half color
Adjust mask plate that the different planarization layer of thickness can be formed in same processing step.In addition, positioned at the flat of the top of color blocking layer 2
Changing the thickness of layer 3 can reduce the height of the alignment film positioned at viewing area A and non-display area B less than the thickness of Part II 32
Difference, and then, the intersection accumulation alignment film chip in viewing area A and non-display area B can be as far as possible reduced or avoided, and then improve
The picture quality and yields of liquid crystal display device.
Display floater in the embodiment of the present invention can be array base palte, and thin film transistor (TFT) is arranged on array base palte
Array, pixel electrode and public electrode etc., the difference of the position relationship arranged according to color blocking layer can include making side as above
Method.
Fig. 6 is the schematic flow sheet of the preparation method of another display base plate provided in an embodiment of the present invention.Fig. 9 a- Fig. 9 e
For the corresponding cross-sectional view of each step in Fig. 6, as shown in fig. 6, the method for the present embodiment comprises the steps：
Step S210, offer substrate 1；
Step S220, on substrate 1 formation thin film transistor (TFT) array 7, refer to Fig. 9 a；
Step S230, on thin film transistor (TFT) array 7 pixel electrode and public electrode are formed, specifically, in the present embodiment
Pixel electrode and public electrode be located at film layer 8, position relationship the present embodiment of pixel electrode and public electrode in film layer 8
It is not limited, can is that same layer is arranged, or different layer is arranged, and refer to Fig. 9 b；
Step S240 forms color blocking layer 2 in pixel electrode and the top of public electrode 6, and color blocking layer 2 is arranged on viewing area A, please
With reference to Fig. 9 c；
Step S250, formation planarization layer 3, planarization layer 3 is located at the top of color blocking layer 2, and extends to non-display area B, its
In, include Part I 31 and Part II 32 positioned at the planarization layer 3 of non-display area B, the Part I 31 of planarization layer 3 away from
It is more than the distance of the Part II 32 apart from viewing area A of planarization layer 3, the Part I of planarization layer 3 with a distance from the A of viewing area
31 thickness refer to Fig. 9 d less than the thickness of the Part II 32 positioned at planarization layer 3；
Step S260, alignment film 4 is formed in the top of planarization layer 3, refer to Fig. 9 e.
Fig. 7 is the schematic flow sheet of the preparation method of another display base plate provided in an embodiment of the present invention.Figure 10 a- scheme
10e is the corresponding cross-sectional view of each step in Fig. 7, as shown in fig. 7, the method for the present embodiment comprises the steps：
Step S310, offer substrate 1；
Step S320, on substrate 1 formation thin film transistor (TFT) array 7, refer to Figure 10 a；
Step S330, on thin film transistor (TFT) array 7 color blocking layer 2 is formed, color blocking layer 2 refer to Figure 10 b；
Step S340, formation planarization layer 3, planarization layer 3 is located at the top of color blocking layer 2, and extends to non-display area B, its
In, include Part I 31 and Part II 32 positioned at the planarization layer 3 of non-display area B, the Part I 31 of planarization layer 3 away from
It is more than the distance of the Part II 32 apart from viewing area A of planarization layer 3, the Part I of planarization layer 3 with a distance from the A of viewing area
31 thickness refer to Figure 10 c less than the thickness of the Part II 32 positioned at planarization layer 3；
Step S350, pixel electrode and public electrode are formed in the top of planarization layer 3, pixel electrode and public electrode are formed
In the top of color blocking layer 2, specifically, the pixel electrode and public electrode in the present embodiment is located at film layer 8, the pixel in film layer 8
Position relationship the present embodiment of electrode and public electrode is not limited, and can be that same layer is arranged, or and different layer is arranged, and please be joined
Examine Figure 10 d.
Step S360, alignment film 4 is formed in pixel electrode and the top of public electrode place film layer 8, refer to Figure 10 e.
In the above embodiment of the present invention, optionally, correspondence Part I is formed with the intersection of Part II on alignment film
There is first step.
Optionally, the thickness positioned at the planarization layer 3 of the top of color blocking layer 2 is less than the thickness of Part II.
Optionally, the thickness of Part II is at least big 0.5 μm than the thickness of the planarization layer 3 positioned at the top of color blocking layer 2.
Optionally, the thickness ratio of Part II be located at the planarization layer 3 of the top of color blocking layer 2 thickness it is big 1.5 μm～2 μm.
Optionally, in the intersection of the planarization layer 3 positioned at the top of color blocking layer 2 and Part II, alignment film is formed with the
Two steps, or for planar structure.
Optionally, non-display area B also includes peripheral driver circuit, and the planarization layer 3 positioned at non-display area B covers peripheral drive
Moving-wire road.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (18)
1. a kind of display base plate, including viewing area and the non-display area around the viewing area, it is characterised in that include：
Substrate；
Color blocking layer, the color blocking layer is arranged on the viewing area；
Wherein, the planarization layer above the color blocking layer, the planarization layer extends to the non-display area, wherein, position
Include Part I and Part II, the Part I distance of the planarization layer in the planarization layer of the non-display area
The distance of the viewing area is more than the distance of the Part II apart from the viewing area of the planarization layer, the planarization layer
Thickness of the thickness of Part I less than the Part II of the planarization layer；And
Alignment film above the planarization layer.
2. display base plate according to claim 1, it is characterised in that the correspondence Part I and institute on the alignment film
The intersection for stating Part II is formed with first step.
3. display base plate according to claim 2, it is characterised in that the thickness of the planarization layer above color blocking layer
Thickness of the degree less than the Part II.
4. display base plate according to claim 3, it is characterised in that the thickness of the Part II is at least than positioned at described
The thickness of the planarization layer above color blocking layer is big 0.5 μm.
5. display base plate according to claim 3, it is characterised in that the thickness ratio of the Part II is located at the color blocking
Layer above the planarization layer thickness it is big 1.5 μm～2 μm.
6. display base plate according to claim 3, it is characterised in that in the planarization above the color blocking layer
Layer and the intersection of the Part II, the alignment film is formed with second step, or for planar structure.
7. display base plate according to claim 6, the first step is arc-shaped step, right angle step or oblique line step,
And the second step is arc-shaped step, right angle step or oblique line step.
8. display base plate according to claim 1, it is characterised in that also include：
Thin film transistor (TFT) array；
Pixel electrode and public electrode；
The color blocking layer is formed in the pixel electrode and public electrode top.
9. display base plate according to claim 1, it is characterised in that also include：
Thin film transistor (TFT) array；
Pixel electrode and public electrode；
The pixel electrode and public electrode are formed in the color blocking layer top.
10. display base plate according to claim 3, it is characterised in that the non-display area also includes peripheral driver circuit,
The planarization layer positioned at the non-display area covers the peripheral driver circuit.
A kind of 11. display panels, it is characterised in that including first substrate and be oppositely arranged with the first substrate second
Substrate, is provided with liquid crystal layer between the first substrate and the second substrate, the first substrate or the second substrate are adopted
With the arbitrary described display base plate of claim 1-10.
12. display panels according to claim 11, it is characterised in that also including being arranged on the liquid crystal layer periphery
Sealed plastic box, the sealed plastic box is correspondingly arranged with the Part I of planarization layer and the intersection of Part II.
13. a kind of liquid crystal indicators, it is characterised in that including the display panels described in claim 11 or 12.
A kind of 14. preparation methods for the arbitrary described display base plate of claim 1-10, it is comprised the following steps：
Substrate is provided；
Square into color blocking layer over the substrate, the color blocking layer is arranged on viewing area；
Planarization layer is formed, the planarization layer is located at color blocking layer top, and extends to non-display area, wherein, positioned at institute
Stating the planarization layer of non-display area includes Part I and Part II, and the Part I of the planarization layer is apart from described
The distance of viewing area more than the planarization layer Part II apart from the viewing area distance, the first of the planarization layer
Thickness of the partial thickness less than the Part II positioned at the planarization layer；
Alignment film is formed above the planarization layer.
The preparation method of 15. display base plates according to claim 14, it is characterised in that the formation planarization layer is concrete
For：
Using intermediate tone mask version is above the color blocking layer and non-display area forms planarization layer, so that the planarization layer
Thickness of the thickness of Part I less than the Part II positioned at the planarization layer.
The preparation method of 16. display base plates according to claim 14, it is characterised in that the formation planarization layer is also wrapped
Include：
Using intermediate tone mask version so that the thickness of the planarization layer above color blocking layer is less than the Part II
Thickness.
The preparation method of 17. display base plates according to claim 14, it is characterised in that also include：
Thin film transistor (TFT) array is formed over the substrate；
Pixel electrode and public electrode are formed on the thin film transistor (TFT) array；
The color blocking layer is formed above the pixel electrode and public electrode.
The preparation method of 18. display base plates according to claim 14, it is characterised in that also include：
Thin film transistor (TFT) array is formed over the substrate；
Above the color blocking layer on the thin film transistor (TFT) array；
The pixel electrode and public electrode are formed above the color blocking layer.
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