CN101989019B - Electronic paper display device and manufacturing method thereof - Google Patents
Electronic paper display device and manufacturing method thereof Download PDFInfo
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- CN101989019B CN101989019B CN 200910161151 CN200910161151A CN101989019B CN 101989019 B CN101989019 B CN 101989019B CN 200910161151 CN200910161151 CN 200910161151 CN 200910161151 A CN200910161151 A CN 200910161151A CN 101989019 B CN101989019 B CN 101989019B
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- electronic paper
- display panel
- diaphragm
- paper display
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Abstract
The invention relates to an electronic paper display device which comprises a substrate, an electronic paper display panel, a protecting film and a packaging colloid, wherein the electronic paper display panel is arranged on the substrate and is provided with a display area and a non-display area surrounding the display area; the protecting film is arranged on the electronic paper display panel and is smaller than the electronic paper display panel so that an interval is formed between a first side wall of the electronic paper display panel and a second side wall of the protecting film, and at least part of the non-display area is exposed; and the packaging colloid is arranged on the substrate and surrounds the electronic paper display panel and the protecting film, wherein the packaging colloid is close to the first side wall and the second side wall and covers the at least part of the non-display area exposed by the protecting film to prevent the packaging colloid from generating bubbles in the process of manufacturing the electronic paper display device, thereby improving the water vapor resistance of the packaging colloid.
Description
Technical field
The present invention relates to a kind of display device and preparation method thereof, and particularly relevant for a kind of display device of electronic paper and preparation method thereof.
Background technology
Fig. 1 illustrates the sectional view of known display device of electronic paper.Please refer to Fig. 1, known display device of electronic paper 100 has a wiring board 110, is disposed at the electronic paper display panel 120 on the wiring board 110, a diaphragm 130 and a packing colloid 140 of overlay electronic paper display panel 120.Diaphragm 130 is greater than electronic paper display panel 120 in this design, so the sidewall 132 of diaphragm 130 can extend to beyond the sidewall 122 of electronic paper display panel 120.So, between diaphragm 130 and wiring board 110, have a clearance G, and clearance G is around the sidewall 122 of electronic paper display panel 120.Packing colloid 140 is disposed on the wiring board 110 and in order to sealed electronic paper display panel 120.
Yet; because clearance G is the hemi-closure space that defines greater than electronic paper display panel 120 by diaphragm 130; therefore when carrying out in the some glue operation of packing colloid 140; produce easily packing colloid 140 path that gas is discharged of when filling clearance G, also having blockaded, cause in clearance G and have bubble B.In other words, the complete sealed electronic paper display panel 120 and aqueous vapor is invaded electronic paper display panel 120 easily of packing colloid 140.Therefore display device of electronic paper 100 also can't have good quality and long serviceable life.
In addition, known technology also proposes another kind of display device of electronic paper, and the edge of its electronic paper display panel and diaphragm trims, and its packing colloid be disposed on the wiring board and be positioned at electronic paper display panel and the edge of diaphragm on.The method for making of aforementioned electronic paper display device is first whole not cropped electronic paper display panel to be fitted into a composite structure with whole not cropped diaphragm, afterwards composite structure is cut into a plurality of composite structures unit.
Yet; the yield of whole not cropped electronic paper display panel only has 70%; and when the electronic paper display panel that detects the composite structure unit has bad point or foreign matter; need to scrap together with the diaphragm of this composite structure unit, so that cost of manufacture higher (cost of diaphragm is same as the cost of electronic paper display panel).
Moreover; because the electronic paper display panel of display device of electronic paper and the edge of diaphragm trim; so packing colloid is difficult for the edge of complete overlay electronic paper display panel and diaphragm, and electronic paper display panel separates with packing colloid because being subject to external force easily with diaphragm.
Summary of the invention
The invention provides a kind of display device of electronic paper and preparation method thereof, can effectively avoid aqueous vapor invasion electronic paper display panel.
The present invention proposes a kind of display device of electronic paper and comprises a substrate, an electronic paper display panel, a diaphragm and a packing colloid.Electronic paper display panel is disposed on the substrate, and electronic paper display panel has a viewing area and around a non-display area of viewing area.Diaphragm is disposed on the electronic paper display panel, diaphragm less than electronic paper display panel so that one second sidewall of a first side wall of electronic paper display panel and diaphragm is separated by a distance, and expose at least part of non-display area.Packing colloid is disposed on the substrate, and around electronic paper display panel and diaphragm, wherein packing colloid is close to the first side wall and the second sidewall and is covered at least part non-display area that protected film comes out.
It is as described below that the present invention proposes a kind of method for making of display device of electronic paper.At first, provide a substrate.Then, an electronic paper display panel is disposed on the substrate, electronic paper display panel has a viewing area and around a non-display area of viewing area.Then, a diaphragm is attached on the electronic paper display panel, diaphragm less than electronic paper display panel so that one second sidewall of a first side wall of electronic paper display panel and diaphragm is separated by a distance, and expose at least part of non-display area.Afterwards, form a packing colloid on substrate, around electronic paper display panel and diaphragm, wherein packing colloid is close to the first side wall and the second sidewall and is covered at least part non-display area that protected film comes out.
From the above, because diaphragm of the present invention is less than electronic paper display panel, so packing colloid can be directly and closely covered on second sidewall and part non-display area that protected film comes out of the first side wall, diaphragm of electronic paper display panel.Therefore, display device of electronic paper of the present invention can avoid producing in the packing colloid bubble, and then can promote the ability of the obstruct aqueous vapor of packing colloid.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate institute's accompanying drawing to be described in detail below.
Description of drawings
Fig. 1 illustrates the sectional view of known display device of electronic paper.
Fig. 2 A illustrates the vertical view of the display device of electronic paper of one embodiment of the invention.
Fig. 2 B is that the display device of electronic paper of Fig. 2 A is along the sectional view of I-I ' line segment.
Fig. 3 A illustrates the vertical view of the display device of electronic paper of another embodiment of the present invention.
Fig. 3 B is that the display device of electronic paper of Fig. 3 A is along the sectional view of II-II ' line segment.
Fig. 4 A～Fig. 4 C illustrates the processing procedure sectional view of the display device of electronic paper of one embodiment of the invention.
Symbol description
100,200,200 ': display device of electronic paper 110: wiring board
120,220: electronic paper display panel
122,132,224a, 224b, 224c, 224d, 234a, 234b, 234c, 234d: sidewall
130,230: diaphragm 140,240,240 ': packing colloid
210: substrate 222,232,236: surface
222a: viewing area 222b: non-display area
224: 234: the second sidewalls of the first side wall
B: bubble D: distance
G: gap W1, W2, W3, W4: width
Embodiment
Fig. 2 A illustrates the vertical view of the display device of electronic paper of one embodiment of the invention, and Fig. 2 B is that the display device of electronic paper of Fig. 2 A is along the sectional view of I-I ' line segment.
Please be simultaneously with reference to Fig. 2 A and Fig. 2 B, the display device of electronic paper 200 of present embodiment comprises a substrate 210, an electronic paper display panel 220, a diaphragm 230 and a packing colloid 240.At this, substrate 210 for example is an active multiple substrate, a plastic base, a flexible circuit board, a printed circuit board (PCB), a stainless steel substrate or a flexible base plate.
Electronic paper display panel 220 is disposed on the substrate 210, and if substrate 210 have circuit (not illustrating), then electronic paper display panel 220 optionally is electrically connected to substrate 210.Electronic paper display panel 220 has a viewing area 222a and around the non-display area 222b of viewing area 222a.In the present embodiment, the width W 1 of non-display area 222b is essentially 2 millimeters.
In the present embodiment; diaphragm 230 refers to that less than electronic paper display panel 220 width W 2 of diaphragm 230 in same profile is less than the width W 3 of electronic paper display panel 220; or the area on a surface 236 of diaphragm 230 and electronic paper display panel 220 applyings is less than the area of electronic paper display panel 220 with a surface 222 of diaphragm 230 applyings, so diaphragm 230 can expose the surface 222 of portions of electronics paper display panel 220.
The first side wall 224 of electronic paper display panel 220 and the second sidewall 234 standoff distance D of diaphragm 230 namely represent sidewall 224a, 224b, 224c, 224d respectively with corresponding sidewall 234a, 234b, 234c, 234d standoff distance D.In addition, present embodiment is take tetragonal diaphragm 230 and electronic paper display panel 220 as example, but is not to limit the present invention.For instance, in other embodiments, diaphragm 230 can be circle, polygon or other erose structure with electronic paper display panel 220.
By as can be known aforementioned; because diaphragm 230 is less than electronic paper display panel 220; so when forming packing colloid 240, packing colloid 240 can directly overlay on the part non-display area 222b that the first side wall 224, the second sidewall 234 and protected film 230 come out.Therefore; packing colloid 240 is that ring-type coats electronic paper display panel 220 and diaphragm 230; and sealing region (the first step structure 242 and second-order ladder-shaper structure 244) is into an Open architecture; can avoid intercepting the path that gas is discharged; and then reduce the generation of bubble, promote simultaneously the ability of the anti-aqueous vapor of display device of electronic paper 200.Moreover, because the surface 222 of 240 while of packing colloid covered substrate 210 and electronic paper display panel 220, so can help to make electronic paper display panel 220 to be fixed on the substrate 210.That is to say that packing colloid 240 and electronic paper display panel 220 are to consist of the structure that interferes with each other and help stably fixedly electronic paper display panel 220 in the present embodiment.In addition, for electronic paper display panel 220 and diaphragm 230, the then area of packing colloid 240 is large, thus can increase bond strength, and then can prevent that external force from causing packing colloid 240 to burst apart.
Fig. 3 A illustrates the vertical view of the display device of electronic paper of another embodiment of the present invention, and Fig. 3 B is that the display device of electronic paper of Fig. 3 A is along the sectional view of II-II ' line segment.Please be simultaneously with reference to Fig. 3 A and Fig. 3 B, display device of electronic paper 200 ' is roughly the same with display device of electronic paper 200 in fact.But, in this embodiment, part packing colloid 240 ' can also extend to (shown in Fig. 3 A and Fig. 3 B) on the surface 232 of diaphragm 230 away from electronic paper display panel 220.For example, the width W 4 of the part of the covering surfaces 232 of packing colloid 240 for example is 0.2 millimeter to 0.5 millimeter.The design of present embodiment is to make the surface 232 of local packing colloid 240 ' covered with protective film 230 with the increase bonding area, and avoids external gas permeation packing colloid 240 and the seam of diaphragm 230 to infiltrate inner situation.
Below will introduce in detail the method for making of aforementioned electronic paper display device 200.
Fig. 4 A～Fig. 4 C illustrates the processing procedure sectional view of the display device of electronic paper of one embodiment of the invention.At first, please refer to Fig. 4 A, a substrate 210 is provided.Then, an electronic paper display panel 220 is disposed on the substrate 210, electronic paper display panel 220 has a viewing area 222a and around the non-display area 222b of viewing area 222a.At this moment, if substrate 210 has circuit (not illustrating), then optionally make electronic paper display panel 220 be electrically connected to substrate 210.
Then; please refer to Fig. 4 B; one diaphragm 230 is attached on the electronic paper display panel 220; diaphragm 230 less than electronic paper display panel 220 so that one second sidewall 234 of a first side wall 224 of electronic paper display panel 220 and diaphragm 230 is separated by a distance B, thereby expose at least part of non-display area 222b.
Afterwards, please refer to Fig. 4 C, form a packing colloid 240 on substrate 210, it is around electronic paper display panel 220 and diaphragm 230.In detail, packing colloid 240 is close to the first side wall 224 and the second sidewall 234 and is covered at least part non-display area 222b that protected film 230 comes out.
In the present embodiment, the method for formation packing colloid 240 can be first flowable colloid material (not illustrating) to be coated on the substrate 210 in the mode of hollow encapsulation.Then, species selectivity ground according to colloidal materials solidifies colloidal materials with thermal curing method (thermal curing), photocuring method or other curing that is fit to, to form packing colloid 240, wherein the orthogonal projection of packing colloid 240 on electronic paper display panel 220 can be to be positioned at outside the 222a of viewing area.Because diaphragm 230 is less than electronic paper display panel 220, colloidal materials can be close to the first side wall 224 of electronic paper display panel 220 and the second sidewall 234 of diaphragm 230.Simultaneously, colloidal materials also covers the part non-display area 222b that part substrate 210 and not protected film 230 cover.Therefore, the packing colloid 240 of present embodiment can fully seal up the effect that the sidewall of electronic paper display panel 220 enters electronic paper display panel 230 to reach certain obstruct aqueous vapor.
In addition, in other embodiments, the method that forms packing colloid 240 more comprises extends on the surface 232 of diaphragm 230 away from electronic paper display panel 220, to be covered in the edge of diaphragm 230 upper surfaces 232 colloidal materials.Thus, after solidifying colloidal materials, can form the packing colloid 240 ' of Fig. 3 A and Fig. 3 B.
It should be noted that; because the electronic paper display panel of electronic paper display panel 220 for cutting of present embodiment; and through automatic visual inspection (Automated Optical Inspection; AOI) after unusual, just be configured on the substrate 210; therefore, the diaphragm 230 that is disposed on the electronic paper display panel 220 can not scrapped because electronic paper display panel 220 has bad point or foreign matter.Thus, present embodiment can be avoided the known higher problem of cost of manufacture that causes because scrapping diaphragm.
In sum, because diaphragm of the present invention is less than electronic paper display panel, so packing colloid can directly overlay on second sidewall and part non-display area that protected film comes out of the first side wall, diaphragm of electronic paper display panel.In the process of making display device of electronic paper, can avoid packing colloid that Bubble formation is arranged, and then can promote the ability of the anti-aqueous vapor of packing colloid.Moreover, because the surface away from substrate of packing colloid while covered substrate and electronic paper display panel, so help to make electronic paper display panel to be fixed on the substrate.In addition, for electronic paper display panel and diaphragm, the then area of packing colloid is large, thus can increase bond strength, and then can prevent that external force from causing packing colloid to burst apart.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention; have in the technical field under any and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so working as the content that defines according to claim, protection scope of the present invention is as the criterion.
Claims (8)
1. a display device of electronic paper is characterized in that, comprising:
One substrate;
One electronic paper display panel is disposed on this substrate, and this electronic paper display panel has a viewing area and around a non-display area of this viewing area;
One diaphragm is disposed on this electronic paper display panel, this diaphragm less than this electronic paper display panel so that one second sidewall of a first side wall of this electronic paper display panel and this diaphragm is separated by a distance, and expose at least part of this non-display area; And
One packing colloid is disposed on this substrate, and around this electronic paper display panel and this diaphragm, wherein this packing colloid is close to this first side wall and this second sidewall and is covered this non-display area of at least part that is come out by this diaphragm.
2. display device of electronic paper according to claim 1 is characterized in that, this packing colloid also covers this diaphragm away from the marginal surface of this electronic paper display panel.
3. display device of electronic paper according to claim 1 is characterized in that, the material of this packing colloid comprises thermosets or photo-curing material.
4. display device of electronic paper according to claim 1 is characterized in that, the material of this diaphragm comprises polyethylene terephthalate.
5. the method for making of a display device of electronic paper is characterized in that, comprising:
One substrate is provided;
One electronic paper display panel is disposed on this substrate, and this electronic paper display panel has a viewing area and around a non-display area of this viewing area;
One diaphragm is attached on this electronic paper display panel, this diaphragm less than this electronic paper display panel so that one second sidewall of a first side wall of this electronic paper display panel and this diaphragm is separated by a distance, and expose at least part of this non-display area; And
Form a packing colloid on this substrate, around this electronic paper display panel and this diaphragm, wherein this packing colloid is close to this first side wall and this second sidewall and is covered this non-display area of at least part that is come out by this diaphragm.
6. the method for making of display device of electronic paper according to claim 5 is characterized in that, the method that forms this packing colloid comprises:
Flowable colloid material is formed on this substrate, makes this colloidal materials be close to this first side wall and this second sidewall of this diaphragm and this non-display area of part and this substrate of part that this colloidal materials covering is not covered by this diaphragm of this electronic paper display panel; And
Solidify this colloidal materials.
7. the method for making of display device of electronic paper according to claim 6 is characterized in that, the formation method of this packing colloid also comprises the surface away from this electronic paper display panel that makes this colloidal materials cover this diaphragm.
8. the method for making of display device of electronic paper according to claim 6 is characterized in that, the method for solidifying this colloidal materials comprises thermal curing method or photocuring method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910161151 CN101989019B (en) | 2009-08-06 | 2009-08-06 | Electronic paper display device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910161151 CN101989019B (en) | 2009-08-06 | 2009-08-06 | Electronic paper display device and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101989019A CN101989019A (en) | 2011-03-23 |
| CN101989019B true CN101989019B (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910161151 Expired - Fee Related CN101989019B (en) | 2009-08-06 | 2009-08-06 | Electronic paper display device and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101989019B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI485846B (en) * | 2011-11-16 | 2015-05-21 | Au Optronics Corp | Display device with flexible substrate and manufacturing method thereof |
| CN103809342A (en) * | 2012-11-15 | 2014-05-21 | 广州奥翼电子科技有限公司 | Display device with touch function and manufacturing method of display device |
| CN103336606B (en) * | 2013-06-14 | 2016-03-02 | 业成光电（深圳）有限公司 | touch module |
| TWI532599B (en) * | 2013-06-21 | 2016-05-11 | 達意科技股份有限公司 | Display panel and manufacturing method of display panel |
| CN105867669A (en) * | 2015-01-23 | 2016-08-17 | 冠捷投资有限公司 | Display apparatus with a dehumidification structure |
| TWI634702B (en) | 2016-05-11 | 2018-09-01 | 財團法人工業技術研究院 | Structure constructed by sheet |
| TWI606279B (en) * | 2016-12-15 | 2017-11-21 | 住華科技股份有限公司 | Optical film and manufacturing method for the same |
| US10444912B2 (en) | 2016-12-30 | 2019-10-15 | Industrial Technology Research Institute | Sensing method of sensing device and stretchable sensor device |
| CN109917598B (en) * | 2017-12-13 | 2022-05-24 | 元太科技工业股份有限公司 | Flexible display device and method for manufacturing the same |
| CN108957897A (en) * | 2018-08-15 | 2018-12-07 | 广州奥翼电子科技股份有限公司 | A kind of electrophoretic display device (EPD) |
| CN109061957B (en) * | 2018-10-30 | 2021-12-10 | 昆山国显光电有限公司 | Display device and preparation method thereof |
| CN109445222B (en) * | 2019-01-02 | 2022-12-20 | 重庆京东方智慧电子系统有限公司 | Display panel and display device |
| CN211426997U (en) * | 2020-03-23 | 2020-09-04 | 京东方科技集团股份有限公司 | Display module and electronic equipment |
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|---|---|---|---|---|
| JP3284730B2 (en) * | 1994-01-14 | 2002-05-20 | ソニー株式会社 | Photosensitive composition |
| TW572836B (en) * | 1999-09-10 | 2004-01-21 | Takara Co Ltd | Magnetophoretic display panel |
| JP2006189582A (en) * | 2005-01-05 | 2006-07-20 | Toppan Printing Co Ltd | Microcapsule type electrophoretic display panel |
| CN1908777A (en) * | 2005-08-05 | 2007-02-07 | 精工爱普生株式会社 | Liquid crystal device, electro-optical device, projector, and micro-device |
| CN101187768A (en) * | 2006-08-30 | 2008-05-28 | Nec液晶技术株式会社 | Electrophoretic display device and method of fabricating the same |
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2009
- 2009-08-06 CN CN 200910161151 patent/CN101989019B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3284730B2 (en) * | 1994-01-14 | 2002-05-20 | ソニー株式会社 | Photosensitive composition |
| TW572836B (en) * | 1999-09-10 | 2004-01-21 | Takara Co Ltd | Magnetophoretic display panel |
| JP2006189582A (en) * | 2005-01-05 | 2006-07-20 | Toppan Printing Co Ltd | Microcapsule type electrophoretic display panel |
| CN1908777A (en) * | 2005-08-05 | 2007-02-07 | 精工爱普生株式会社 | Liquid crystal device, electro-optical device, projector, and micro-device |
| CN101187768A (en) * | 2006-08-30 | 2008-05-28 | Nec液晶技术株式会社 | Electrophoretic display device and method of fabricating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101989019A (en) | 2011-03-23 |
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Granted publication date: 20130109 Termination date: 20160806 |