CN109679512B - OCA optical cement for display device and disassembly method of display device - Google Patents
OCA optical cement for display device and disassembly method of display device Download PDFInfo
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- CN109679512B CN109679512B CN201811555411.1A CN201811555411A CN109679512B CN 109679512 B CN109679512 B CN 109679512B CN 201811555411 A CN201811555411 A CN 201811555411A CN 109679512 B CN109679512 B CN 109679512B
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- oca optical
- adhesive layer
- display device
- optical adhesive
- panel
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Processing Of Solid Wastes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present disclosure provides an OCA optical cement for a display device and a method of disassembling a display device. The display device comprises a panel and a cover plate arranged on the panel. OCA optical cement includes first OCA optical cement layer and second OCA optical cement layer. First OCA optics glue film is used for the laminating the apron. The second OCA optical cement layer set up in just be used for the laminating on the first OCA optical cement layer the panel. The viscosity of first OCA optics glue film is greater than the viscosity of second OCA optics glue film. The present disclosure can easily separate the OCA optical cement from the panel of the display device.
Description
[ technical field ] A method for producing a semiconductor device
The disclosure relates to the field of display technologies, and in particular, to an OCA optical cement for a display device and a method for disassembling the display device.
[ background of the invention ]
At present, the 3D attaching process of the curved cover plate and the flexible panel of the display device is complex, the attaching yield is low, and in the disassembling and reworking processes of the display device, when OCA optical cement for adhering the panel is removed, the panel is easily damaged and the panel is difficult to rework, so the cost of the display device is seriously influenced.
Therefore, it is desirable to provide an OCA optical cement for a display device and a method for disassembling a display device, so as to solve the problems in the prior art.
[ summary of the invention ]
In order to solve the above-mentioned problems, an object of the present disclosure is to provide an OCA optical cement for a display device and a method for disassembling the display device, which can easily separate the OCA optical cement from a panel of the display device.
To achieve the above objects, the present disclosure provides an OCA optical cement for a display device. The display device comprises a panel and a cover plate arranged on the panel. OCA optical cement includes first OCA optical cement layer and second OCA optical cement layer. First OCA optics glue film is used for the laminating the apron. The second OCA optical cement layer set up in just be used for the laminating on the first OCA optical cement layer the panel. The viscosity of first OCA optics glue film is greater than the viscosity of second OCA optics glue film.
In one embodiment of the present disclosure, the curing temperature of the first OCA optical adhesive layer is lower than the curing temperature of the second OCA optical adhesive layer.
The present disclosure also provides a method for disassembling a display device, including:
freezing the display device to be disassembled at a freezing temperature, wherein the display device to be disassembled comprises a cover plate, a first OCA optical adhesive layer, a second OCA optical adhesive layer and a panel which are sequentially attached from top to bottom, the viscosity of the first OCA optical adhesive layer is greater than that of the second OCA optical adhesive layer, and the freezing temperature is set as the hardening temperature of the second OCA optical adhesive layer; and
and a disassembling step of taking out the frozen display device to be disassembled and separating the panel from the cover plate.
In one embodiment of the present disclosure, the curing temperature of the first OCA optical adhesive layer is lower than the curing temperature of the second OCA optical adhesive layer.
In one embodiment of the present disclosure, the first OCA optical adhesive layer has viscosity at the freezing temperature.
In one embodiment of the present disclosure, the second OCA optical adhesive layer is hardened at the freezing temperature.
In one embodiment of the present disclosure, the method for disassembling a display device further includes a cleaning step, where the cleaning step includes cleaning the separated panel.
In one embodiment of the present disclosure, the disassembling step includes separating the panel from the cover plate, the first OCA optical adhesive layer and the second OCA optical adhesive layer which are sequentially attached.
In an embodiment of the disclosure, the method for disassembling a display device further includes a cleaning step, where the cleaning step includes heating and removing the first OCA optical adhesive layer and the second OCA optical adhesive layer attached to the cover plate.
In one embodiment of the present disclosure, the cleaning step includes cleaning the cover plate.
In the disassembly method of the OCA optical cement for the display device and the display device of the embodiment of the disclosure, the first OCA optical cement layer is used for attaching the cover plate, the second OCA optical cement layer is arranged on the first OCA optical cement layer and used for attaching the panel, and the viscosity of the first OCA optical cement layer is greater than that of the second OCA optical cement layer, so that the OCA optical cement is easily separated from the panel.
In order to make the aforementioned and other aspects of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below:
[ description of the drawings ]
FIG. 1 is a schematic diagram illustrating an OCA optical cement for a display device according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of a method for disassembling a display device according to an embodiment of the disclosure;
FIG. 3 is a schematic diagram illustrating a display device to be disassembled according to an embodiment of the disclosure; and
FIG. 4 shows a schematic view of a panel separated from a cover plate according to an embodiment of the present disclosure.
[ detailed description ] embodiments
In order to make the aforementioned and other objects, features and advantages of the present disclosure comprehensible, preferred embodiments accompanied with figures are described in detail below. Furthermore, directional phrases used in this disclosure, such as, for example, upper, lower, top, bottom, front, rear, left, right, inner, outer, lateral, peripheral, central, horizontal, lateral, vertical, longitudinal, axial, radial, uppermost or lowermost, etc., refer only to the orientation of the attached drawings. Accordingly, the directional terms used are used for the purpose of illustration and understanding of the present disclosure, and are not used to limit the present disclosure.
In the drawings, elements having similar structures are denoted by the same reference numerals.
Referring to fig. 1, an embodiment of the present disclosure provides an OCA optical cement 100 for a display device. The display device 200 includes a panel 202 and a cover 204 disposed on the panel 202. The OCA optical adhesive 100 includes a first OCA optical adhesive layer 102 and a second OCA optical adhesive layer 104. The first OCA optical adhesive layer 102 is used for attaching the cover plate 204. The second OCA optical adhesive layer 104 is disposed on the first OCA optical adhesive layer 102 and is used for attaching to the panel 202. The adhesiveness of the first OCA optical adhesive layer 102 is greater than that of the second OCA optical adhesive layer 104.
Specifically, the curing temperature of the first OCA optical adhesive layer 102 is lower than the curing temperature of the second OCA optical adhesive layer 104.
Specifically, the viscosity of the first OCA optical adhesive layer 102 is linear with the curing temperature of the first OCA optical adhesive layer 102. The viscosity of the layer of dioca optical adhesive 104 is linearly related to the curing temperature of the layer of dioca optical adhesive 104.
Specifically, the display device 200 is, for example, a flexible display device. The panel 202 is, for example, a flexible panel. The cover 204 is, for example, a curved cover.
Referring to fig. 2 to 4, a disassembling method 300 of a display device 200 according to an embodiment of the disclosure includes a freezing step 302 and a disassembling step 304.
In the freezing step 302, the display device 200 to be disassembled is frozen at a freezing temperature, for example, the display device 200 to be disassembled is placed in a refrigerator, the display device 200 to be disassembled includes a cover plate 204, a first OCA optical adhesive layer 102, a second OCA optical adhesive layer 104 and a panel 202, which are sequentially attached from top to bottom, the viscosity of the first OCA optical adhesive layer 102 is greater than that of the second OCA optical adhesive layer 104, and the freezing temperature is set as the curing temperature of the second OCA optical adhesive layer 104. The curing temperature of the second OCA optical adhesive layer 104 can be determined according to actual tests.
Specifically, the display device 200 to be disassembled is, for example, a defective product. That is, the display device 200 to be disassembled includes the cover plate 204 and the panel 202 which are not well adhered.
In a disassembling step 304, the frozen display device 200 to be disassembled is taken out, and the panel 202 is separated from the cover 204. Specifically, the disassembling step 304 includes separating the panel 202 from the cover plate 204, the first OCA optical adhesive layer 102, and the second OCA optical adhesive layer 104, which are attached in sequence.
Specifically, the curing temperature of the first OCA optical adhesive layer 102 is lower than the curing temperature of the second OCA optical adhesive layer 104. The first OCA optical glue layer 102 does not completely harden and is adhesive at the freezing temperature. The second OCA optical glue layer 104 is completely hardened at the freezing temperature. Therefore, the first OCA optical adhesive layer 102 and the second OCA optical adhesive layer 104 remain on the cover plate 204, and the panel 202 has no adhesive residue, that is, no first OCA optical adhesive layer 102 and no second OCA optical adhesive layer 104 remain on the panel 202, and the panel 202 can be reworked (reworked) by simply cleaning the panel 202.
Specifically, the viscosity of the first OCA optical adhesive layer 102 is linear with the curing temperature of the first OCA optical adhesive layer 102. The viscosity of the layer of dioca optical adhesive 104 is linearly related to the curing temperature of the layer of dioca optical adhesive 104.
Specifically, the display device 200 is, for example, a flexible display device. The panel 202 is, for example, a flexible panel. The cover 204 is, for example, a flexible cover.
The disassembling method 300 of the display device 200 according to an embodiment of the disclosure further includes a cleaning step 306. The cleaning step 306 includes cleaning the separated panel 202. Since no adhesive residue is left on the surface of the panel 202, i.e. no first OCA optical adhesive layer 102 and no second OCA optical adhesive layer 104 remain on the panel 202, the panel 202 can be simply wiped and cleaned by using dust-free cloth and a small amount of alcohol to be reworked (reworked).
Specifically, the cleaning step 306 includes heating and removing the first OCA optical adhesive layer 102 and the second OCA optical adhesive layer 104 attached to the cover plate 204. The cleaning step 306 includes cleaning the cover plate 204. The cover plate 204 can be easily cleaned no matter how much residual glue is left due to the material characteristics, such as the hard and corrosion-resistant material of the cover plate 204, and the reworking can be performed by heating and removing the first OCA optical adhesive layer 102 and the second OCA optical adhesive layer 104 attached to the cover plate 204, and then wiping and cleaning the cover plate 204 with a large amount of alcohol by using a dust-free cloth.
In the disassembly method of the OCA optical cement for the display device and the display device of the embodiment of the disclosure, the first OCA optical cement layer is used for attaching the cover plate, the second OCA optical cement layer is arranged on the first OCA optical cement layer and used for attaching the panel, and the viscosity of the first OCA optical cement layer is greater than that of the second OCA optical cement layer, so that the OCA optical cement is easily separated from the panel.
Although the disclosure has been shown and described with respect to one or more implementations, equivalent alterations and modifications will occur to others skilled in the art based upon a reading and understanding of this specification and the annexed drawings. The present disclosure includes all such modifications and alterations, and is limited only by the scope of the appended claims. In particular regard to the various functions performed by the above described components, the terms used to describe such components are intended to correspond, unless otherwise indicated, to any component which performs the specified function of the described component (e.g., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations of the specification. In addition, while a particular feature of the specification may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for a given or particular application. Furthermore, to the extent that the terms "includes," has, "" contains, "or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term" comprising.
The foregoing is merely a preferred embodiment of the present disclosure, and it should be noted that modifications and refinements may be made by those skilled in the art without departing from the principle of the present disclosure, and these modifications and refinements should also be construed as the protection scope of the present disclosure.
Claims (5)
1. A method of disassembling a display device, comprising:
freezing, namely freezing a display device to be disassembled at a freezing temperature, wherein the display device to be disassembled comprises a cover plate, a first OCA optical adhesive layer, a second OCA optical adhesive layer and a panel which are sequentially attached from top to bottom, the second OCA optical adhesive layer is arranged on the first OCA optical adhesive layer and is used for being attached to the panel, the viscosity of the first OCA optical adhesive layer is greater than that of the second OCA optical adhesive layer, the hardening temperature of the first OCA optical adhesive layer is lower than that of the second OCA optical adhesive layer, the freezing temperature is set as the hardening temperature of the second OCA optical adhesive layer, the first OCA optical adhesive layer is not completely hardened and has viscosity at the freezing temperature, and the second OCA optical adhesive layer is completely hardened at the freezing temperature; and
and a disassembling step of taking out the frozen display device to be disassembled, wherein the first OCA optical adhesive layer and the second OCA optical adhesive layer are remained on the cover plate, and no first OCA optical adhesive layer and no second OCA optical adhesive layer are remained on the panel, so that the panel is separated from the cover plate.
2. The disassembling method of the display device according to claim 1, further comprising a cleaning step including cleaning the separated panel.
3. The method of disassembling a display device according to claim 1, wherein the disassembling step includes separating the panel from the cover sheet, the first OCA optical cement layer, and the second OCA optical cement layer, which are attached in this order.
4. The method for disassembling a display device according to claim 3, further comprising a cleaning step including heating and removing the first OCA optical adhesive layer and the second OCA optical adhesive layer attached to the cover plate.
5. The disassembling method of the display device according to claim 4, wherein the cleaning step includes cleaning the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811555411.1A CN109679512B (en) | 2018-12-18 | 2018-12-18 | OCA optical cement for display device and disassembly method of display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811555411.1A CN109679512B (en) | 2018-12-18 | 2018-12-18 | OCA optical cement for display device and disassembly method of display device |
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| Publication Number | Publication Date |
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| CN109679512A CN109679512A (en) | 2019-04-26 |
| CN109679512B true CN109679512B (en) | 2021-02-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589565A (en) * | 2020-04-30 | 2021-11-02 | 荣耀终端有限公司 | Display module and terminal |
| CN112736213B (en) * | 2020-12-18 | 2022-12-27 | 重庆莱宝科技有限公司 | Solvent composition for disassembling flexible optical device and application |
| CN113391722B (en) * | 2021-05-26 | 2023-07-28 | 深圳市中深光电股份有限公司 | Method for disassembling touch screen |
| CN114187830A (en) * | 2021-11-18 | 2022-03-15 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203360361U (en) * | 2013-06-05 | 2013-12-25 | 信利光电股份有限公司 | Display device and optical glue belt thereof |
| CN105892736A (en) * | 2015-01-26 | 2016-08-24 | 宸鸿科技(厦门)有限公司 | Optical cement, panel and substrate fitting method |
| CN204808278U (en) * | 2015-07-14 | 2015-11-25 | 昆山龙腾光电有限公司 | Panel module and touch screen |
| CN105153958B (en) * | 2015-10-12 | 2017-09-26 | 京东方科技集团股份有限公司 | Optical clear plastic structure and preparation method thereof, contact panel and contactor control device |
| JP2018090725A (en) * | 2016-12-06 | 2018-06-14 | Dic株式会社 | Adhesive film and information display device using the same |
| CN107225840A (en) * | 2017-04-21 | 2017-10-03 | 深圳市立德通讯器材有限公司 | Full laminating display screen disassembles separation method |
| CN207845546U (en) * | 2018-01-25 | 2018-09-11 | 江西合力泰科技有限公司 | A kind of OCA optical cements |
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