WO2017118118A1 - 胶带及其制作方法、显示装置 - Google Patents
胶带及其制作方法、显示装置 Download PDFInfo
- Publication number
- WO2017118118A1 WO2017118118A1 PCT/CN2016/100667 CN2016100667W WO2017118118A1 WO 2017118118 A1 WO2017118118 A1 WO 2017118118A1 CN 2016100667 W CN2016100667 W CN 2016100667W WO 2017118118 A1 WO2017118118 A1 WO 2017118118A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- release film
- layer
- adhesive
- adhesive layer
- tape according
- Prior art date
Links
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Images
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Definitions
- Embodiments of the present disclosure relate to an adhesive tape, a method of fabricating the same, and a display device.
- the display device includes a display panel and a backlight module.
- the display panel is bonded to the plastic frame of the backlight module through a tape. Since the plastic frame is usually formed by cutting, the height difference between the different positions of the plastic frame is made. A large part of the plastic frame cannot be in contact with the tape, resulting in a small contact area between the adhesive layer and the plastic frame in the adhesive tape, and a small adhesive force between the adhesive layer and the plastic frame, making the display panel easy to The backlight module is separated.
- Embodiments of the present disclosure provide an adhesive tape, a method of manufacturing the same, and a display device.
- an adhesive tape is provided.
- the tape comprises a first release film, a first adhesive layer, a substrate layer, a second adhesive layer and a second release film, which are disposed in a stack, the first release film facing one side of the first adhesive layer A plurality of dimples are disposed thereon, and the first bonding layer includes a plurality of first protrusions embedded in the plurality of the dimples.
- the embodiment of the present disclosure further includes a display device including a backlight module and a display panel, the backlight module includes a surface-corroded plastic frame, and the plastic frame of the backlight module and the first of the tapes The bonding layer is bonded, and a peripheral portion of the display panel is bonded to the second bonding layer in the above tape.
- Embodiments of the present disclosure also provide a method of manufacturing an adhesive tape, including:
- the mold bottom is provided with a plurality of second protrusions, and the plurality of the second protrusions are respectively matched with the plurality of the pits;
- the second release film is covered on the second bonding layer.
- Figure 1 is a schematic cross-sectional view of a display device
- FIG. 2 is a schematic cross-sectional view of an adhesive tape in an embodiment of the present disclosure
- FIG. 3 is a schematic view of a side of a first release film facing a first adhesive layer in an embodiment of the present disclosure
- FIG. 4 is a schematic cross-sectional view of a display device in an embodiment of the present disclosure.
- Figure 5 is a plan view showing the first first protrusion in the embodiment of the present disclosure.
- Figure 6 is a schematic cross-sectional view showing a second first protrusion in the embodiment of the present disclosure.
- Figure 7 is a schematic cross-sectional view showing a third first protrusion in the embodiment of the present disclosure.
- FIG. 8 is a schematic view showing a process of performing adhesion test on a first adhesive layer in an embodiment of the present disclosure
- FIG. 9 is a flow chart of a method of manufacturing an adhesive tape in an embodiment of the present disclosure.
- one way to reduce the height difference at different positions of the plastic frame is to perform surface etching treatment (VDI) on the plastic frame to increase the bonding area between the bonding layer and the plastic frame.
- VDI surface etching treatment
- the adhesion between the layer and the plastic frame but the inventors of the present application found that, as shown in FIG. 1, the surface of the plastic frame 1' after the surface etching treatment is still uneven, and the bonding layer cannot be combined with the plastic frame 1'.
- the contact between the concave positions causes the bonding force between the bonding layer 2' and the plastic frame 1' to still meet the demand, so that the bonding of the display panel 3' to the backlight module is still not strong enough.
- the tape 1 includes a first release film 11 laminated, a first adhesive layer 12, a substrate layer 13, a second adhesive layer 14, and The second release film 15.
- the first release film 11 is provided with a plurality of dimples 111 on one side of the first adhesive layer 12, and the first adhesive layer 12 includes a plurality of first projections 121 embedded in the plurality of dimples 111.
- the tape 1 provided by the embodiment of the present disclosure has a structure as described above such that after the first release film 11 is peeled off, the first adhesive layer 12 has a plurality of first protrusions 121 thereon.
- Using the tape 1 will backlight
- the module and the display panel are bonded, as shown in FIG. 4, the second adhesive layer 14 in the adhesive tape 1 is bonded to the display panel 2, and the first adhesive layer 12 and the surface-etched adhesive in the backlight module are The frame 3 is bonded, wherein each of the first protrusions 121 on the first adhesive layer 12 can be in contact with the concave position of the plastic frame 3, thereby effectively increasing the contact area between the plastic frame 3 and the first adhesive layer 12.
- the adhesion between the plastic frame 3 and the first bonding layer 12 is improved, and the display panel 2 and the backlight module are more firmly bonded. Since the adhesive in the first adhesive layer 12 has a certain fluidity, even if the plurality of first protrusions 121 on the first adhesive layer 12 and the concave positions on the plastic frame 3 are not matched one by one, Under the action of the pressure applied during the operation, the plurality of first protrusions 121 are also in contact with the concave position of the plastic frame 3, thereby increasing the contact area between the plastic frame 3 and the first adhesive layer 12.
- the structures of the second adhesive layer 14 and the second release film 15 are not limited, and those skilled in the art can select according to actual needs. Since the first adhesive layer 12 is used for bonding with the plastic frame 3 in the backlight module during use of the adhesive tape 1, the second adhesive layer 14 is used for bonding with the display panel 2, that is, the second adhesive layer.
- the junction layer 14 is adhered to a glass substrate having a very flat surface in the display panel 2, and therefore, in the embodiment of the present disclosure, for example, as shown in FIG.
- the second release film 15 faces one side of the second adhesive layer 14 Plane such that the second bonding layer 14 faces the side of the second release film 15 to be planar, thereby enabling the contact area between the second bonding layer 14 and the display panel 2 to be large, so that the display panel 2 and the second The adhesion between the bonding layers 14 is large.
- the inventors of the present application have also found that when the backlight module and the display panel are bonded by using the tape in the prior art, the adhesive layer in the tape undergoes a large lateral deformation and wrinkles when heated, which is further reduced.
- the first release film 11 faces the side of the first adhesive layer 12.
- the first release film 11 and the second release film 15 in the embodiment of the present disclosure are both a polyester film, such as a PET (polyethylene terephthalate) film, to make the first release film.
- the film 11 and the second release film 15 have excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high temperature resistance and low temperature, chemical resistance, oil resistance, air tightness and good aroma retention.
- the adhesives in the first adhesive layer 12 and the second adhesive layer 14 are all acrylic adhesives to make the first adhesive
- the layer 12 and the second bonding layer 14 have high strength, good impact resistance, weather resistance, oil surface bonding, convenient use, impact resistance and strong shearing force.
- the substrate layer 13 is a polyester film excellent in mechanical properties. It should be noted that the materials of the first release film 11, the first adhesive layer 12, the substrate layer 13, the second adhesive layer 14, and the second release film 15 are not limited thereto, and those skilled in the art can Make a choice.
- the thickness of the tape 1 is too small, the adhesive in the first adhesive layer 12 and the second adhesive layer 14 in the adhesive tape 1 is too small, and the first adhesive layer 12 and the backlight module are The adhesive force between the plastic frame 3 or the second adhesive layer 14 and the display panel 2 is too small, so that the backlight module and the display panel 2 are easily separated. If the thickness of the adhesive tape 1 is too large, the display device may be caused. If the thickness is too large, it is disadvantageous for the thinning of the display device, and therefore, it is necessary to appropriately set the thickness of the tape 1.
- the thickness of the tape 1 in the embodiment of the present disclosure is 0.03 mm to 0.1 mm.
- a plurality of dimples 111 having the same shape are disposed on one side of the first release film 11 toward the first adhesive layer 12, so that the first The production method of the release film 11 is simple.
- the recessed positions on the plastic frame 3 usually have different sizes, and in order to further increase the contact area between the first adhesive layer 12 and the plastic frame 3,
- the first release film 11 is provided with a plurality of dimples 111 having the same shape and having at least two different sizes on one side of the first release layer 12, in which case the first adhesive layer 12 is embedded in the above
- the plurality of first protrusions 121 of the plurality of dimples 111 also have at least two different sizes such that the first protrusions 121 on the first bonding layer 12 can better contact the depressed positions on the bezel 3 .
- the plurality of dimples 111 provided on the one side of the first release film 11 toward the first adhesive layer 12 in the embodiment of the present disclosure may also have different shapes.
- the plurality of pits 111 on the one side of the first release film 11 facing the first adhesive layer 12 in the embodiment of the present disclosure may be regularly distributed or irregularly distributed.
- the first release film 11 is irregularly distributed toward the plurality of pits 111 on one side of the first adhesive layer 12 such that the first release film 11 faces the first adhesive layer 12.
- the one side has a large roughness, so that the first bonding layer 12 and the plastic frame 3 in the backlight module have a larger contact area.
- the first release film 11 in the embodiment of the present disclosure faces the one side of the first adhesive layer 12.
- the shape of the pit 111 is a shape similar to an octopus sucker as shown in Fig. 5, or a hemispherical shape as shown in Fig. 6, or a conical shape as shown in Fig. 7.
- the shape of the dimples 111 on the one side of the first release film 11 facing the first adhesive layer 12 is not limited to the above, and may be other shapes.
- the diameter of the opening of the dimple 111 may be 5 ⁇ m to 10 ⁇ m, and the depth of the dimple 111 may be 5 ⁇ m to 10 ⁇ m, so that the size of the dimple 111 is on the surface of the plastic frame 3 subjected to surface etching treatment.
- the size of the recessed position is adapted to further increase the contact area between the first adhesive layer 12 and the bezel 3.
- the diameter of the opening of the pit 111 is 5 ⁇ m to 10 ⁇ m
- the distance between the axes of symmetry of the adjacent two pits 111 may be 10 ⁇ m to 15 ⁇ m so that there is a gap between the adjacent two pits 111.
- the bonding layer in the prior art tape and the present disclosure are obtained by the manner as shown in FIG.
- the adhesion of the first bonding layer 12 in the adhesive tape 1 in the embodiment was tested, wherein the difference between the prior art tape and the tape 1 in the embodiment of the present disclosure is in the tape 1 in the disclosed embodiment.
- the first release film 11 has a plurality of dimples 111
- the first adhesive layer 12 includes a plurality of first protrusions 121 respectively embedded in the plurality of dimples 111, the plurality of dimples 111 being in the shape of a hemisphere
- the shape has a depth of 5 ⁇ m to 10 ⁇ m per pit, and the opening of each of the pits 111 has a diameter of 5 ⁇ m to 10 ⁇ m.
- the adhesion between the first bonding layer 12 in the adhesive tape 1 and the plastic frame 3 in the backlight module is significantly improved compared with the prior art tape. .
- the embodiment of the present disclosure further provides a display device.
- the display device includes a backlight module and a display panel 2 .
- the backlight module includes a plastic frame 3 after surface etching treatment, wherein the backlight module is The frame 3 is bonded to the first bonding layer 12 in the tape 1 described above, and the peripheral portion of the display panel 2 is bonded to the second bonding layer 14 in the tape 1 described above.
- the display device provided by the embodiment of the present disclosure has the structure as described above, thereby making the first Each of the first protrusions 121 on the adhesive layer 12 can be in contact with the concave position of the surface-treated plastic frame 3 in the backlight module, thereby effectively increasing the gap between the plastic frame 3 and the first adhesive layer 12.
- the contact area improves the adhesion between the plastic frame 3 and the first bonding layer 12, so that the display panel 2 and the backlight module are more firmly bonded, and the structure of the display device is more stable.
- the embodiment of the present disclosure further provides a method for manufacturing an adhesive tape, which is used for manufacturing the tape described above.
- the method for manufacturing the adhesive tape includes:
- Step S901 providing a mold for making a first release film, the bottom of the mold is provided with a plurality of second protrusions, and the plurality of second protrusions are respectively matched with the plurality of pits.
- Step S902 using the mold to make a first release film.
- Step S903 forming a first adhesive layer on a side of the first release film provided with a plurality of pits.
- Step S904 covering the substrate layer on the first bonding layer.
- Step S905 forming a second bonding layer on the substrate layer.
- Step S906 covering the second release layer with the second release film.
- the manufacturing method of the adhesive tape provided by the embodiment of the present disclosure includes the steps as described above, the adhesive tape produced by the manufacturing method has the structure described above, so that the manufacturing method of the adhesive tape has the same advantageous effects as the above-mentioned adhesive tape, No more details are given.
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Abstract
Description
Claims (13)
- 一种胶带,包括层叠设置的第一离型膜、第一粘结层、衬底层、第二粘结层和第二离型膜,其中所述第一离型膜朝向所述第一粘结层的一面上设置有多个凹坑,所述第一粘结层包括嵌入多个所述凹坑中的多个第一凸起。
- 根据权利要求1所述的胶带,其中,所述第一离型膜多个所述凹坑的形状相同。
- 根据权利要求2所述的胶带,其中,形状相同的多个所述凹坑具有至少两种不同尺寸。
- 根据权利要求1-3任一项所述的胶带,其中,多个所述凹坑不规则分布在所述第一离型膜朝向所述第一粘结层的该面上。
- 根据权利要求1-4任一项所述的胶带,其中,所述凹坑的形状为类章鱼吸盘式形状,或者,半球形状,或者,圆锥形状。
- 根据权利要求1-5任一项所述的胶带,其中,所述凹坑的开口的直径为5μm~10μm。
- 根据权利要求1-6任一项所述的胶带,其中,所述凹坑的深度为5μm~10μm。
- 根据权利要求1-7任一项所述的胶带,其中,相邻两个所述凹坑之间具有间隙。
- 根据权利要求1-8任一项所述的胶带,其中,所述第二离型膜朝向所述第二粘结层的一面为平面。
- 根据权利要求1-9任一项所述的胶带,其中,所述第一离型膜和所述第二离型膜均为聚脂薄膜,所述第一粘结层和所述第二粘结层中的粘合剂均为丙烯酸类粘合剂,所述衬底层为聚醋薄膜。
- 根据权利要求1-10任一项所述的胶带,其中,所述胶带的厚度为0.03mm~0.1mm。
- 一种显示装置,包括背光模组和显示面板,所述背光模组包括表面腐蚀处理后的胶框,其中所述背光模组的胶框与如权利要求1-11任一项所述的胶带中的所述第一粘结层粘合,所述显示面板的周边区域与如权利要求1-11任一项所述的胶带中的所述第二粘结层粘合。
- 一种胶带的制作方法,用于制作如权利要求1-11任一项所述的胶带, 包括:提供一用于制作所述第一离型膜的模具,所述模具的底部设置有多个第二凸起,多个所述第二凸起分别与多个所述凹坑一一匹配;使用所述模具制作所述第一离型膜;在所述第一离型膜的设置有多个所述凹坑的一面上形成所述第一粘结层;在所述第一粘结层上覆盖所述衬底层;在所述衬底层上形成所述第二粘结层;以及在所述第二粘结层上覆盖所述第二离型膜。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/522,513 US20180107047A1 (en) | 2016-01-04 | 2016-09-28 | Adhesive Tape, Fabricating Method Thereof, and Display Device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201610005977.1 | 2016-01-04 | ||
CN201610005977.1A CN105419671B (zh) | 2016-01-04 | 2016-01-04 | 一种胶带及其制作方法、显示装置 |
Publications (1)
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WO2017118118A1 true WO2017118118A1 (zh) | 2017-07-13 |
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PCT/CN2016/100667 WO2017118118A1 (zh) | 2016-01-04 | 2016-09-28 | 胶带及其制作方法、显示装置 |
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US (1) | US20180107047A1 (zh) |
CN (1) | CN105419671B (zh) |
WO (1) | WO2017118118A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019119189A1 (en) * | 2017-12-18 | 2019-06-27 | Agency For Science, Technology And Research | Adhesive having increased bonding strength |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107216824B (zh) * | 2017-07-20 | 2020-07-31 | 京东方科技集团股份有限公司 | 一种胶带及其制备方法 |
CN107219672B (zh) * | 2017-07-26 | 2020-07-03 | 厦门天马微电子有限公司 | 背光模组和显示装置 |
CN107502210A (zh) * | 2017-09-28 | 2017-12-22 | 京东方科技集团股份有限公司 | 一种光学透明胶和光学透明胶的制备方法 |
CN108389886B (zh) * | 2018-04-17 | 2021-11-30 | 京东方科技集团股份有限公司 | 一种背板组件及显示面板 |
CN109326220B (zh) * | 2018-09-20 | 2021-06-29 | 云谷(固安)科技有限公司 | 盖板及其制造方法、柔性显示模组和电子设备 |
CN110105891A (zh) * | 2019-05-13 | 2019-08-09 | 湖南省普瑞达内装材料有限公司 | 一种耐磨性能好的汽车线束胶带 |
CN110379298B (zh) * | 2019-07-19 | 2021-06-01 | 深圳市华星光电半导体显示技术有限公司 | 框胶结构和显示面板的制作方法 |
US11434394B2 (en) | 2020-05-14 | 2022-09-06 | The Procter & Gamble Company | Adhesive having increased bonding strength |
CN112571686A (zh) * | 2020-10-16 | 2021-03-30 | 中国船舶重工集团公司第七二五研究所 | 一种水下吸附吸盘模具及制备方法 |
CN114550589A (zh) * | 2022-02-22 | 2022-05-27 | 武汉天马微电子有限公司 | 显示模组和显示装置 |
CN115044309B (zh) * | 2022-06-23 | 2024-04-30 | 合肥维信诺科技有限公司 | 双面胶带及其制作方法 |
CN115311959A (zh) * | 2022-08-19 | 2022-11-08 | 厦门天马显示科技有限公司 | 一种显示装置及其制备方法 |
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CN201722321U (zh) * | 2010-05-07 | 2011-01-26 | 苏州斯迪克电子胶粘材料有限公司 | 一种双面胶带 |
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CN104214590A (zh) * | 2013-05-30 | 2014-12-17 | 北京京东方光电科技有限公司 | 一种背光模组和液晶显示装置 |
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CN202186967U (zh) * | 2011-07-29 | 2012-04-11 | 苏州斯迪克电子胶粘材料有限公司 | 雾面网格热熔胶双面胶带 |
-
2016
- 2016-01-04 CN CN201610005977.1A patent/CN105419671B/zh not_active Expired - Fee Related
- 2016-09-28 WO PCT/CN2016/100667 patent/WO2017118118A1/zh active Application Filing
- 2016-09-28 US US15/522,513 patent/US20180107047A1/en not_active Abandoned
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WO2000059715A1 (en) * | 1999-04-05 | 2000-10-12 | Four Pillars Enterprise Corp. | Multi functional electrically and thermally conductive adhesive tape |
CN201722321U (zh) * | 2010-05-07 | 2011-01-26 | 苏州斯迪克电子胶粘材料有限公司 | 一种双面胶带 |
CN201722320U (zh) * | 2010-05-07 | 2011-01-26 | 苏州斯迪克电子胶粘材料有限公司 | 双面胶带 |
CN104214590A (zh) * | 2013-05-30 | 2014-12-17 | 北京京东方光电科技有限公司 | 一种背光模组和液晶显示装置 |
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WO2019119189A1 (en) * | 2017-12-18 | 2019-06-27 | Agency For Science, Technology And Research | Adhesive having increased bonding strength |
Also Published As
Publication number | Publication date |
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CN105419671B (zh) | 2019-01-04 |
CN105419671A (zh) | 2016-03-23 |
US20180107047A1 (en) | 2018-04-19 |
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