CN104849916A - Manufacturing method of photosensitive interstitials and liquid crystal display panel - Google Patents
Manufacturing method of photosensitive interstitials and liquid crystal display panel Download PDFInfo
- Publication number
- CN104849916A CN104849916A CN201510254524.8A CN201510254524A CN104849916A CN 104849916 A CN104849916 A CN 104849916A CN 201510254524 A CN201510254524 A CN 201510254524A CN 104849916 A CN104849916 A CN 104849916A
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- Prior art keywords
- alignment film
- substrate
- light sensitive
- sensitive spacer
- alignment
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Classifications
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13396—Spacers having different sizes
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a manufacturing method of photosensitive interstitials and a liquid crystal display panel. The liquid crystal display panel comprises a first substrate and a second substrate, wherein the first substrate and the second substrate are arranged in a face-to-face mode, a first alignment film and a second alignment film are arranged on the surface, facing the second substrate, of the first substrate and the surface, facing the first substrate, of the second substrate respectively, a frame adhesive is arranged between the first substrate and the second substrate, and the photosensitive interstitials are arranged on the peripheries of the first alignment film and the second alignment film, and arranged between the first alignment film and the frame adhesive or between the second alignment film and the frame adhesive. The height of the photosensitive interstitials in the direction of the first alignment film or the second alignment film is gradually reduced, and therefore backflow of alignment liquid of the alignment films is reduced, the phenomenon that the alignment liquid flows back and accumulates nearby a liquid crystal display region is avoided, the size of a frame of the liquid crystal display panel is reduced, the phenomenon of non-uniform cracks caused by backflow and accumulation of the alignment liquid is avoided, and the production yield of the display panel is improved.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of manufacture method and display panels of light sensitive spacer.
Background technology
TFT-LCD liquid crystal panel comprises array base palte, color membrane substrates and is clipped in the liquid crystal in the middle of array base palte and color membrane substrates, wherein, array base palte and color membrane substrates surfaces opposite to each other being coated with alignment film, making liquid crystal have fixing swinging to when showing to form tilt angle.
Due to frame glue can be provided with between color membrane substrates and array base palte, liquid crystal is filled in the sealing area of color membrane substrates, array base palte and frame glue formation, therefore, the alignment liquid of alignment film can not exceed the position of frame glue, otherwise there will be frame glue peel off and come off, or display is abnormal, thus the alignment liquid edge of alignment film must between the actual optics viewing area of display panel and frame glue inside edge.Common way arranges a grade wall to prevent alignment liquid from exceeding frame glue edge at the edge of alignment film, barricade is one or the formation of several roads light sensitive spacer normally, the height of barricade is more than 10 times of alignment liquid thickness, as shown in Figure 1-Figure 3, in traditional design, light sensitive spacer barricade 11 is a vertical high-wall exceeding more than ten times relative to alignment liquid 12, alignment liquid can be subject to a larger reacting force when flowing through barricade, alignment liquid 12 is refluxed to be deposited near optical display field territory, the thickness of alignment film is caused to increase, be unfavorable for the trend of the frame stricturization of display panels, and, because the backflow of alignment liquid 12 is piled up, display panels can be caused to become the phenomenon that there will be crack inequality during box.
Summary of the invention
In view of this, the invention provides a kind of manufacture method and display panels of light sensitive spacer, to reduce alignment liquid backflow, avoid alignment liquid to be deposited near optical display field territory, make the frame of display panels can be narrower, and avoid alignment liquid to reflux piling up the crack produced uneven.
For solving the problem, the invention provides a kind of display panels, comprise the first substrate and second substrate that are oppositely arranged, first substrate and second substrate surfaces opposite to each other are respectively equipped with the first alignment film and the second alignment film, frame glue is provided with between first substrate and second substrate, surrounding around the first alignment film and the second alignment film is provided with multiple light sensitive spacer, and light sensitive spacer is arranged between the first alignment film and frame glue or between the second alignment film and frame glue, light sensitive spacer reduces gradually along the height in the direction of the first alignment film or the second alignment film, for reducing the alignment liquid backflow of the first alignment film and the second alignment film.
Wherein, the height of light sensitive spacer is 10 times of the thickness of the alignment liquid of the first alignment film or the second alignment film.
Wherein, light sensitive spacer is hill-like structure.
Wherein, light sensitive spacer is step structure, comprises the first step and second step that reduce highly gradually.
Wherein, first step and second step integrally formed.
Wherein, be provided with liquid crystal layer between first substrate and second substrate, the first alignment film is arranged between first substrate and liquid crystal layer, and the second alignment film is arranged between second substrate and liquid crystal layer.
The present invention also provides a kind of manufacture method of light sensitive spacer, comprising: provide substrate; Substrate is coated with photoresist layer, and photoresist is for the formation of light sensitive spacer; Use light shield to expose photoresist layer, develop, form light sensitive spacer, wherein, light sensitive spacer is step structure.
Wherein, light sensitive spacer comprises the first step and second step that reduce highly gradually, first step and second step integrally formed.
Wherein, light shield comprises the multiple first gear striations set gradually, and have a gap between adjacent two first gear striations, gap increases gradually.
Wherein, light shield comprises latticed second gear striation, and the size of grid increases gradually.
Pass through such scheme, the invention has the beneficial effects as follows: be different from prior art, frame glue is provided with between the first substrate of display panels of the present invention and second substrate, light sensitive spacer is centered around the surrounding of the first alignment film and the second alignment film, and be arranged between the first alignment film and frame glue or between the second alignment film and frame glue, light sensitive spacer reduces gradually along the height in the direction of the first alignment film or the second alignment film, thus the alignment liquid that can reduce the first alignment film and the second alignment film that arranges of light sensitive spacer refluxes, avoiding alignment liquid to reflux is deposited near liquid crystal display area, make the frame of display panels can stricturization more, and avoid because the crack inequality produced is piled up in alignment liquid backflow, improve the production yield of display panels.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.Wherein:
Fig. 1 is the schematic diagram that in prior art, alignment liquid flows to light sensitive spacer;
Fig. 2 is alignment liquid backflow schematic diagram in Fig. 1;
Fig. 3 is that in Fig. 1, alignment liquid piles up schematic diagram;
Fig. 4 is the structural representation of display panels of the present invention;
Fig. 5 is the schematic diagram that in the present invention, alignment liquid flows to light sensitive spacer;
Fig. 6 is that in Fig. 5, alignment liquid climbs the schematic diagram of light sensitive spacer;
Fig. 7 is that in Fig. 5, alignment liquid piles up schematic diagram;
Fig. 8 is the manufacture method schematic flow sheet of light sensitive spacer of the present invention;
Fig. 9 is the structural representation of the first embodiment of the light shield manufacturing light sensitive spacer;
Figure 10 is the structural representation of the second embodiment of the light shield manufacturing light sensitive spacer.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, be clearly and completely described the technical scheme in embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under performing creative labour prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 4, Fig. 4 is the structural representation of display panels of the present invention.As shown in Figure 4, display panels 1 comprises the first substrate 21 and second substrate 22 that are oppositely arranged, first substrate 21 and second substrate 22 surfaces opposite to each other are respectively equipped with the first alignment film 23 and the second alignment film 24, frame glue 25 is provided with between first substrate 21 and second substrate 22, surrounding around the first alignment film 23 and the second alignment film 24 is provided with multiple light sensitive spacer 26, and light sensitive spacer 26 is arranged between the first alignment film 23 and frame glue 25 or between the second alignment film 24 and frame glue 25, light sensitive spacer 26 reduces gradually along the height in the direction of the first alignment film 23 or the second alignment film 24, for reducing the alignment liquid backflow of the first alignment film 23 and the second alignment film 24.Namely being all respectively equipped with light sensitive spacer 26 between the first alignment film 23 and frame glue 25 and between the second alignment film 24 and frame glue 25, refluxing for preventing the alignment liquid of alignment film.
In the present embodiment, first substrate 21 is preferably color membrane substrates, and second substrate 22 is preferably array base palte.First substrate 21, second substrate 22 and frame glue 25 form a sealing area, liquid crystal layer 27 is filled in sealing area, first alignment film 23 is arranged between first substrate 21 and liquid crystal layer 27, second alignment film 24 is arranged between second substrate 22 and liquid crystal layer 27, wherein, the first alignment film 23 and the second alignment film 24 are all make liquid crystal 27 have fixing swinging to when showing for the formation of tilt angle.
Below, the first alignment film 23 and the unification of the second alignment film 24 are referred to as alignment film.In the present embodiment, alignment film is the film with vertical bar shape scratch, to guide the orientation of liquid crystal molecule, usually adopts UV light orientation method, electronics slurry orientation or ion beam alignment method to manufacture.The composition of alignment film is polyimide, it is the aromatic heterocycle polymer compound that a kind of molecular structure contains imide chain link, English name Polyimide (being called for short PI), at display panels (Thin Film TransistorLiquid Crystal Display), be called for short in TFT-LCD, it is micromolecular compound that PI alignment film contains composition admittedly in stoste, it at high temperature produces polyreaction, form the long-chain macromolecule solid polymer polyamide of a lot of side chain of band, in polymer molecule, the angle of side chain and main chain forms guide layer tilt angle, because the branched group of polymkeric substance is stronger with the acting force between liquid crystal molecule, liquid crystal molecule is had to the effect of grappling, liquid crystal can be made to arrange by tilt angle direction.
Wherein, alignment film can not exceed the position of frame glue 25, otherwise frame glue 25 will be there will be peel off and come off, or display is abnormal, therefore, PI alignment liquid edge must control between LCD optical display field territory and frame glue 25 inside edge, thus between alignment film and frame glue 25, arrange light sensitive spacer 26 (photo spacer, be called for short PS), exceed frame glue 25 or overlapping with frame glue 25 to stop PI alignment liquid.
Composition graphs 4 is please the schematic diagram that alignment liquid of the present invention flows to light sensitive spacer referring to Fig. 5-Fig. 7, Fig. 5 further, and Fig. 6 is that alignment liquid climbs the schematic diagram of light sensitive spacer, and Fig. 7 is that alignment liquid piles up schematic diagram.As shown in Figure 5, when first substrate 21 or second substrate 22 are coated with PI alignment liquid, alignment liquid 28 can flow to light sensitive spacer 26, here illustratively, because the position relationship of first substrate 21 and the first alignment film 23 and the position relationship of second substrate 22 and the second alignment film 24 are similar to, the application only illustrates for first substrate 21 and the first alignment film 23, and those of ordinary skill in the art can know second substrate 22 by inference according to content disclosed in the present application and also adopt same structure with the second alignment film 24.In the present embodiment, light sensitive spacer 26 is step structure, and comprise the first step 261 and second step 262 that reduce highly gradually, first step 261 is higher than second step 262, and wherein, second step 262 is near the first alignment film 23 direction.It is noted herein that first step 261 and second step 262 are only specific embodiments, therefore limiting light sensitive spacer 26 in other embodiments does not adopt the step of more than three or three.
Wherein, first step 261 and second step 262 integrally formed, both adopt same material, in same technique one step formed, in the present embodiment, the shape of cross section of first step 261 and second step 262 can be identical or different.Further, the height of light sensitive spacer 26 is more than 10 times or 10 times of the thickness of the alignment liquid 28 of the first alignment film 23, and namely the height of first step 261 is at least 10 times of alignment liquid 28 thickness.
That in Fig. 5, alignment liquid climbs the schematic diagram of light sensitive spacer referring to Fig. 6, Fig. 6 further.First substrate 21 continue in alignment liquid 28 process of coating first alignment film 23, alignment liquid 28 can flow to the light sensitive spacer 26 between the first alignment film 23 and frame glue 25, due to the step structure of light sensitive spacer 26, therefore, alignment liquid 28 can be climbed on second step 262 from first step 261, climbs the highest point to ladder.Continue referring to Fig. 7, alignment liquid 28 can reflux climbing to the highest point of ladder, and due to the step structure of light sensitive spacer 26, the acting force of alignment liquid 28 when flowing to light sensitive spacer 26 is reduced greatly, thus the backflow of alignment liquid 28 accumulation also will greatly reduce, the alignment liquid 28 at the optical display field territory place of display panels 1 is refluxed and piles up minimizing, thus the frame of display panels 1 can be narrower, and, backflow due to alignment liquid 28 is piled up and is reduced, avoid the crack uneven phenomenon of product simultaneously, the production yield of product is improved greatly.
In other embodiments, light sensitive spacer 26 can be also hill-like structure, and acting force when alignment liquid is flowed to reduces greatly, thus the backflow of alignment liquid 28 accumulation also reduces.
Please refer to Fig. 8, Fig. 8 is the manufacture method schematic flow sheet of light sensitive spacer of the present invention, and the light sensitive spacer wherein shown in Fig. 8 is described with stair-stepping structure.As shown in Figure 8, the manufacture method of light sensitive spacer 26 comprises:
S11: substrate is provided.
Wherein, a glass substrate is prepared.
S12: be coated with photoresist layer on substrate.
Wherein, the photoresist layer that substrate is coated with is the material for the formation of light sensitive spacer, and photoresist can adopt positive photoresist or negative photoresist.
S13: use light shield to expose photoresist layer, develop, form light sensitive spacer, wherein, light sensitive spacer is step structure.
Wherein, use light shield to carry out exposing operation to the photoresist layer on substrate, as shown in Figure 9, light shield 2 comprises the multiple first gear striations 31 set gradually, and have a gap between two adjacent first gear striations 31, the width in these gaps increases gradually.In the present embodiment, gap is printing opacity in exposure manufacture process, and first gear striation 31 is light tight, wherein, gap is larger, and photoresistance obtained after exposure is larger, therefore, by the exposure of light shield 2 pairs of photoresist layers, and after developing, obtain the light sensitive spacer 26 of the step-like structure raised highly gradually, gap is less, step is lower, and gap is larger, and step is higher.
Wherein, light sensitive spacer 26 comprises the first step 261 and second step 262 that reduce highly gradually, and first step 261 and second step 262 integrally formed, by same material, in same manufacturing process one step formed.In this application, light sensitive spacer 26 comprises first step 261 and second step 262 is only one of them embodiment, does not limit light sensitive spacer 26 and can comprise three or more the steps reduced highly gradually.
In other embodiments, as shown in Figure 10, light shield 3 comprises latticed second gear striation 32, light shield 3 forms latticed by vertically disposed shield bars 321 and transversely arranged shield bars 322, wherein, the size of grid increases gradually, and the gap namely between vertically disposed shield bars 321 increases gradually, and the gap of transversely arranged shield bars 322 is consistent or increases gradually.Grid is the transmittance section of light shield 3, and grid is larger, and photoresistance manufactured after exposure is larger, therefore, by the grid increased gradually, after overexposure, developing manufacture process, also can obtain stair-stepping light sensitive spacer 26.
In sum, region is not in prior art, display panels of the present invention comprises the first substrate and second substrate that are oppositely arranged, first substrate and second substrate surfaces opposite to each other are respectively equipped with the first alignment film and the second alignment film, frame glue is provided with between first substrate and second substrate, surrounding around the first alignment film and the second alignment film is provided with multiple light sensitive spacer, and light sensitive spacer is arranged between the first alignment film and frame glue or between the second alignment film and frame glue, light sensitive spacer reduces gradually along the height in the direction of the first alignment film or the second alignment film, thus the alignment liquid that can reduce the first alignment film and the second alignment film that arranges of light sensitive spacer refluxes, avoiding alignment liquid to reflux is deposited near liquid crystal display area, reduce the frame of display panels, and it is uneven to prevent alignment liquid backflow from piling up the crack caused, improve the production yield of display panel.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a display panels, comprise the first substrate and second substrate that are oppositely arranged, described first substrate and described second substrate surfaces opposite to each other are respectively equipped with the first alignment film and the second alignment film, it is characterized in that, frame glue is provided with between described first substrate and described second substrate, surrounding around described first alignment film and described second alignment film is provided with multiple light sensitive spacer, and described light sensitive spacer is arranged between described first alignment film and described frame glue or between described second alignment film and described frame glue, described light sensitive spacer reduces gradually along the height in the direction of described first alignment film or described second alignment film, for reducing the alignment liquid backflow of described first alignment film and described second alignment film.
2. display panels according to claim 1, is characterized in that, the height of described light sensitive spacer is 10 times of the thickness of the alignment liquid of described first alignment film or described second alignment film.
3. display panels according to claim 1, is characterized in that, described light sensitive spacer is hill-like structure.
4. display panels according to claim 1, is characterized in that, described light sensitive spacer is step structure, comprises the first step and second step that reduce highly gradually.
5. display panels according to claim 4, is characterized in that, described first step and described second step integrally formed.
6. display panels according to claim 1, it is characterized in that, liquid crystal layer is provided with between described first substrate and described second substrate, described first alignment film is arranged between described first substrate and described liquid crystal layer, and described second alignment film is arranged between described second substrate and described liquid crystal layer.
7. a manufacture method for light sensitive spacer, is characterized in that, described method for making comprises:
Substrate is provided;
Be coated with photoresist layer on the substrate, described photoresist is for the formation of described light sensitive spacer;
Use light shield to expose described photoresist layer, develop, form described light sensitive spacer, wherein, described light sensitive spacer is step structure.
8. manufacture method according to claim 7, is characterized in that, described light sensitive spacer comprises the first step and second step that reduce highly gradually, described first step and described second step integrally formed.
9. manufacture method according to claim 7, is characterized in that, described light shield comprises the multiple first gear striations set gradually, and have a gap between adjacent two described first gear striations, described gap increases gradually.
10. manufacture method according to claim 7, is characterized in that, described light shield comprises latticed second gear striation, and the size of described grid increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510254524.8A CN104849916A (en) | 2015-05-18 | 2015-05-18 | Manufacturing method of photosensitive interstitials and liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510254524.8A CN104849916A (en) | 2015-05-18 | 2015-05-18 | Manufacturing method of photosensitive interstitials and liquid crystal display panel |
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| CN104849916A true CN104849916A (en) | 2015-08-19 |
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| CN201510254524.8A Pending CN104849916A (en) | 2015-05-18 | 2015-05-18 | Manufacturing method of photosensitive interstitials and liquid crystal display panel |
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Cited By (6)
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| CN105223739A (en) * | 2015-10-30 | 2016-01-06 | 深圳市华星光电技术有限公司 | Display panels and liquid crystal indicator |
| CN108983475A (en) * | 2018-08-29 | 2018-12-11 | 深圳市华星光电技术有限公司 | Liquid crystal display and its board structure |
| CN110187545A (en) * | 2019-04-09 | 2019-08-30 | 深圳市华星光电技术有限公司 | Color membrane substrates and display panel |
| CN110275354A (en) * | 2019-05-06 | 2019-09-24 | 惠科股份有限公司 | Array substrate and display panel |
| CN111103733A (en) * | 2019-07-05 | 2020-05-05 | 友达光电股份有限公司 | Display device |
| CN112654916A (en) * | 2018-09-12 | 2021-04-13 | 华为技术有限公司 | Liquid crystal display panel, liquid crystal display screen and electronic equipment |
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Application publication date: 20150819 |