CN103499901A - Display panel manufacturing method, display panel and display device - Google Patents
Display panel manufacturing method, display panel and display device Download PDFInfo
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- CN103499901A CN103499901A CN201310485351.1A CN201310485351A CN103499901A CN 103499901 A CN103499901 A CN 103499901A CN 201310485351 A CN201310485351 A CN 201310485351A CN 103499901 A CN103499901 A CN 103499901A
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Abstract
The invention provides a display panel manufacturing method, a display panel and a display device. The display panel manufacturing method includes the first step of forming alignment films, namely, forming the alignment film on the whole surface of a first mother board, forming a plurality of pixel units on a second mother board, and forming the alignment film on the whole surface of the second mother board provided with the plurality of pixel units, wherein each pixel unit comprises at least one switch element; the second step of enabling frame sealing adhesives to coat the first mother board or the second mother board; the third step of enabling the first mother board and the second mother board to be oppositely bound together to form a display panel mother board; the fourth step of cutting the display panel mother board to form the display panel. According to the display panel manufacturing method, the display panel and the display device, the influences of edge ring areas of the alignment films can be effectively eliminated, the frame sealing adhesive area of the display device can be effectively narrowed, the development of the display device with a narrow frame and the development of the displace device with an extremely narrow frame can be better facilitated.
Description
Technical field
The present invention relates to the display technique field, relate in particular to a kind of method for making, display panel, display device of display panel.
Background technology
When prior art is made in display device, whole substrate to be processed is cut apart, to form the substrate of single display device.Include the step of making alignment film in this process, be specially:
Form the alignment film figure on whole substrate to be processed, the zone that each alignment film figure covers is identical with the residing zone of the substrate of single display device;
Cut apart substrate to be processed to form the substrate of single display device, be coated with one deck alignment film figure on the substrate of each display device.
But, while on substrate to be processed, forming the alignment film pattern, alignment film is to be coated on substrate to be processed with liquid state.In dissolving agent process in precuring (Precure) and main curing (Maincure) evaporation alignment film, the velocity of evaporation of alignment film solvent is greater than the viewing area of alignment film pattern at the fringe region of alignment film pattern, due to the capillary effect of alignment film solvent, the alignment film solvent is constantly accumulated to the edge of alignment film pattern, caused the edge orientation rete of alignment film pattern thicker, and the fringe region of alignment film pattern and the zone between viewing area, the phenomenon that alignment film is thinner.Alignment film edge ring zone (Halo zone) schematic diagram that alignment film pattern edge as shown in Figure 1 occurs, alignment film 1 is formed on substrate 2; A-quadrant is the partially thick zone of alignment film, forms alignment film edge ring zone on substrate; The B zone is the partially thin zone of alignment film; The C zone is the alignment film homogeneous area.Fig. 2 is the alignment film pattern schematic diagram of the display device of prior art, includes periphery wiring regional 4(Pad zone on each display panel 5) and viewing area 3; Each display panel 5 forms respectively the alignment film 1 that covers viewing area.The alignment film that is positioned at the edge, viewing area is called alignment film edge ring zone 32, and the A in its alignment film thickness corresponding diagram 1, the thickness in B zone are arranged in the thickness in C zone of the alignment film thickness corresponding diagram 1 at center, viewing area 31.
In showing industry, especially TFT-LCD manufacturing, the alignment film edge ring zone at alignment film (PI) edge has a strong impact on the design of the frame region of ADS product.In addition, also should limit the size of alignment film flat plate margin, its main cause is to prevent that alignment film is coated in periphery wiring zone 4, makes the signal can't input substrate (Panel).For meeting narrow frame technological requirement, minimum all will be accomplished in alignment film flat plate margin and alignment film edge ring zone.
Under existing printing mode, realize that little alignment film flat plate margin and alignment film edge ring zone difficulty are larger.Due to the existence in alignment film edge ring zone, thereby make the Sealing Area(sealed plastic box zone of display device, particular location is zone between viewing area to the edge of substrate) zone is larger.And, for the display device of narrow frame and super narrow frame, the sealed plastic box zone is larger, be difficult to meet the production standard of the display device of narrow frame and super narrow frame.
Summary of the invention
The invention provides a kind of method for making of display panel and display panel, display device, for solving the larger problem in sealed plastic box zone of display device.
The invention provides a kind of method for making of display panel, comprise the making step of alignment film, the making step of described alignment film comprises:
On the first motherboard, whole forms alignment film;
Form a plurality of pixel cells on the second motherboard, described each pixel cell comprises at least one on-off element;
Be formed with whole formation alignment film on the second motherboard of a plurality of pixel cells;
Apply sealed plastic box on the first motherboard or the second motherboard;
The first motherboard is become to the display panel motherboard with the second motherboard to box-like;
The display panel motherboard is cut, formed display panel.
Wherein, on the first motherboard whole form alignment film after, also comprise: the alignment film be formed on the first motherboard is orientated.
Further, described display panel comprises viewing area and periphery wiring zone, and the display panel motherboard is being cut, and after forming the step of display panel, also comprises: the periphery of the removing described display panel regional alignment film that connects up.
Preferably, removing the step that the alignment film on the periphery wiring zone of described display panel peels off comprises:
Adopt BR-10 or EP-19 as stripper, the alignment film on the periphery of described the second motherboard wiring zone to be peeled off.
Wherein, described on-off element adopts thin film transistor (TFT) to make.
The present invention also provides a kind of display panel, and described display panel adopts the method for making of display panel as described above to make.
Wherein, be provided with pixel cell in described display panel; Described pixel cell comprises the first electrode and the second electrode, and described the second electrode is the slit-shaped electrode, and described the second electrode is positioned at described the first electrode top.
Further, the substrate in described display panel is provided with alignment film, and described alignment film comprises edge ring zone and viewing area, and the end face of the end face of the alignment film in described edge ring zone and the alignment film of described viewing area is in same plane.
Described substrate is color membrane substrates or array base palte.
The present invention also provides a kind of display device, comprises display panel as above.
The method for making of a kind of display panel provided by the invention and display panel, display device, alignment film is coated in to whole to be formed on motherboard (being substrate to be processed), again by the display panel motherboard) be divided into the substrate that meets each sized display, the alignment film in the Pad zone on display panel is peeled off, the homogeneity of alignment film thickness can be guaranteed, can effectively eliminate the impact in the edge ring zone of alignment film, and effectively dwindle the sealed plastic box zone of display device, more be conducive to the display device exploitation of narrow frame and super narrow frame.
The accompanying drawing explanation
Fig. 1 is the alignment film edge ring area schematic that existing alignment film produces;
Fig. 2 is existing substrate alignment film patterning schematic diagram;
Fig. 3 is whole alignment film patterning schematic diagram of motherboard of the present invention;
Fig. 4 is the method for making of display panel of the present invention;
The schematic diagram that Fig. 5 is array base palte in display panel provided by the invention;
The sectional schematic diagram that Fig. 6 is pixel cell provided by the invention.
In accompanying drawing, the component list of each label representative is as follows:
The 1-alignment film; The 2-substrate; 2a, the second motherboard; The 3-viewing area; 4-periphery wiring zone; The 5-display panel; The 6-pixel cell; The 601-substrate; 602-the first electrode; 603-the second electrode.
Embodiment
In order to understand better the present invention, below in conjunction with accompanying drawing and embodiment, the invention will be further described.
First embodiment of the invention provides a kind of method for making of display panel, as shown in Figure 4, comprises the making step of alignment film, and the making step of described alignment film comprises:
On the first motherboard, whole forms alignment film;
The printing technology that forms alignment film comprises:
Version trunk transfer printing mode, alignment film is coated on edition trunk, by the version trunk, is transferred in the mode on glass mother board;
Ink jet printing mode, alignment film solution spues and directly is coated in the mode on glass mother board by shower nozzle.Thereby printing technology causes the edge of alignment film figure to there will be the Halo zone.
Alignment film solution can adopt: modified polyimide
The molecular formula of polyimide is as follows:
On the first motherboard whole form alignment film after, also comprise: the alignment film be formed on the first motherboard is carried out to friction matching technique.Particularly, can carry out friction orientation to the alignment film surface by friction cloth.
Form a plurality of pixel cells on the second motherboard, described each pixel cell comprises at least one on-off element.
As shown in Figure 3, form a plurality of pixel cells 5 on the second motherboard 2a, described each pixel cell 5 comprises at least one on-off element;
Preferably, described on-off element adopts thin film transistor (TFT) to make.
Be formed with whole formation alignment film on the second motherboard of a plurality of pixel cells.
Concrete, be formed with whole formation alignment film 1 on the second motherboard 2 of a plurality of pixel cells 5; Form alignment film 1 and can adopt edition trunk transfer printing mode or an ink jet printing mode.
Apply sealed plastic box on the first motherboard or the second motherboard;
The first motherboard is become to the display panel motherboard with the second motherboard vacuum to box-like;
The display panel motherboard is cut, formed a plurality of display panels.
Described each display panel comprises viewing area and periphery wiring zone, the display panel motherboard cut, and after forming display panel, the periphery that also should the remove described display panel regional alignment film that connects up.
Particularly, on the second motherboard whole form alignment film after, also comprise: the alignment film 1 be formed on the second motherboard 2 is orientated, can carries out friction orientation or carry out the light orientation the alignment film surface by friction cloth.
Particularly, in the present embodiment, remove the step that the alignment film on the periphery wiring zone of described display panel is peeled off, adopt alkaline stripper, for example BR-10 or EP-19 type stripper, peel off the alignment film on the wiring of the periphery on display panel zone.
BR-10 stripper principal ingredient is:
| Composition | wt% |
| Amine | 5～20 |
| Ethylene glycol | 60～70 |
| |
1～5 |
| Water | 15～25 |
EP-19 stripper principal ingredient is:
| Composition | wt% |
| |
19 |
| Ethanol | 5～50 |
| Organic |
1～20 |
| Rust preventive | 1～20 |
| Water | 10～30 |
Alignment film on periphery on described display panel step line zone (pad of printed circuit board, particular location is to zone between the edge of array base palte outside color membrane substrates) is peeled off; This periphery wiring zone is mainly used for welding printed circuit board (PCB).Alignment film on periphery on described display panel wiring zone is peeled off, can be prevented that alignment film is coated in periphery wiring zone and causes display can't input to display panel.
In addition, the present embodiment also provides a kind of display panel, and this display panel adopts the method for making of above-mentioned display panel to make.
Wherein, be provided with pixel cell in described display panel, as shown in Figure 5; As shown in Figure 6, described pixel cell comprises substrate 601, the first electrode 602 and the second electrode 603 that is provided with on-off element (as TFT), and described the second electrode is the slit-shaped electrode, and described the second electrode is positioned at described the first electrode top.
Further, display panel comprises color membrane substrates and array base palte, described color membrane substrates and/or array base palte are provided with alignment film, described alignment film comprises edge ring zone and viewing area, and the end face of the end face of the alignment film in described edge ring zone and the alignment film of described viewing area is in same plane.Thereby, the homogeneity of alignment film thickness can be guaranteed.
The present embodiment also provides a kind of display device, display device such as Mobile phone screen, personal computer screens, tv display screen, panel computer, and this display device comprises above-mentioned display panel.
The method for making of the display panel that the embodiment of the present invention provides has following beneficial effect:
One, effectively eliminated the impact in alignment film edge ring zone;
Two, the more effective design of dwindling the sealed plastic box zone, be conducive to the display device design of narrow frame and super narrow frame;
Three,, in the alignment film printing stage, can simplify alignment film printing technique;
If four adopt the alignment film printing mode version trunk transfer mode of version trunk transfer printing, each size can share a transfer printing board, without frequent replacing;
If five adopt the alignment film printing mode of ink jet printing, if the alignment film thickness is constant, technical parameter can share, thereby, while on same production line, making the different model display panel, need not, to the adjustment of being correlated with of technical parameter on production line, reduce the switching time used that the different model display panel is made.
These are only the preferred embodiments of the present invention; certainly; the present invention can also have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the method for making of a display panel, comprise the step that forms alignment film, it is characterized in that, the step of described making alignment film comprises:
On the first motherboard, whole forms alignment film;
Form a plurality of pixel cells on the second motherboard, described each pixel cell comprises at least one on-off element;
Be formed with whole formation alignment film on the second motherboard of a plurality of pixel cells;
Apply sealed plastic box on the first motherboard or the second motherboard;
The first motherboard is become to the display panel motherboard with the second motherboard to box-like;
The display panel motherboard is cut, formed display panel.
2. the method for making of display panel as claimed in claim 1, is characterized in that,
On the first motherboard whole form alignment film after, also comprise: the alignment film be formed on the first motherboard is orientated.
3. the method for making of display panel as claimed in claim 1, it is characterized in that, described display panel comprises viewing area and periphery wiring zone, the display panel motherboard is being cut, after forming the step of display panel, also comprise: the periphery of the removing described display panel regional alignment film that connects up.
4. the method for making of display panel as claimed in claim 3, is characterized in that, removes the step that the alignment film on the periphery wiring zone of described display panel peels off and comprise:
Adopt BR-10 or EP-19 as stripper, the alignment film on the periphery of described the second motherboard wiring zone to be peeled off.
5. the method for making of display panel as claimed in claim 1, is characterized in that, described on-off element adopts thin film transistor (TFT) to make.
6. a display panel, is characterized in that, described display panel adopts the arbitrary described method for making of claim 1-5 to make.
7. display panel as claimed in claim 6, is characterized in that, in described display panel, is provided with pixel cell; Described pixel cell comprises the first electrode and the second electrode, and described the second electrode is the slit-shaped electrode, and described the second electrode is positioned at described the first electrode top.
8. display panel as claimed in claim 6, it is characterized in that, the substrate of described display panel is provided with alignment film, and described alignment film comprises edge ring zone and viewing area, and the end face of the end face of the alignment film in described edge ring zone and the alignment film of described viewing area is in same plane.
9. display panel as claimed in claim 8, is characterized in that, described substrate is color membrane substrates or array base palte.
10. a display device, is characterized in that, comprises as the described display panel of claim 7-9 any one.
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| CN201310485351.1A CN103499901A (en) | 2013-10-16 | 2013-10-16 | Display panel manufacturing method, display panel and display device |
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|---|---|---|---|
| CN201310485351.1A CN103499901A (en) | 2013-10-16 | 2013-10-16 | Display panel manufacturing method, display panel and display device |
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| CN103838024A (en) * | 2014-02-18 | 2014-06-04 | 北京京东方显示技术有限公司 | Method for manufacturing liquid crystal display panel and liquid crystal display panel |
| CN104155806A (en) * | 2014-08-07 | 2014-11-19 | 深圳市华星光电技术有限公司 | Method for manufacturing alignment layer |
| CN105425477A (en) * | 2016-01-06 | 2016-03-23 | 京东方科技集团股份有限公司 | Manufacturing method of display panel, display panel and display device |
| CN106154647A (en) * | 2015-03-26 | 2016-11-23 | 鸿富锦精密工业（深圳）有限公司 | The manufacture method of display panels, display panels and display device |
| US9658494B2 (en) | 2014-06-26 | 2017-05-23 | Boe Technology Group Co., Ltd. | Display substrate, mother substrate for display substrates and display device |
| CN107092142A (en) * | 2017-07-04 | 2017-08-25 | 京东方科技集团股份有限公司 | Display panel and its manufacture method, oriented layer coating unit, display device |
| CN108205225A (en) * | 2016-12-16 | 2018-06-26 | 乐金显示有限公司 | Substrate component, the Liquid crystal disply device and its preparation method including the substrate component |
| CN113467131A (en) * | 2021-06-28 | 2021-10-01 | 北海惠科光电技术有限公司 | Alignment film manufacturing method |
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| CN103838024A (en) * | 2014-02-18 | 2014-06-04 | 北京京东方显示技术有限公司 | Method for manufacturing liquid crystal display panel and liquid crystal display panel |
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| CN107092142A (en) * | 2017-07-04 | 2017-08-25 | 京东方科技集团股份有限公司 | Display panel and its manufacture method, oriented layer coating unit, display device |
| CN113467131A (en) * | 2021-06-28 | 2021-10-01 | 北海惠科光电技术有限公司 | Alignment film manufacturing method |
| CN113467131B (en) * | 2021-06-28 | 2022-05-24 | 北海惠科光电技术有限公司 | Alignment film manufacturing method |
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Application publication date: 20140108 |