CN109679512A - For the OCA optical cement of display device and the disassembling method of display device - Google Patents
For the OCA optical cement of display device and the disassembling method of display device Download PDFInfo
- Publication number
- CN109679512A CN109679512A CN201811555411.1A CN201811555411A CN109679512A CN 109679512 A CN109679512 A CN 109679512A CN 201811555411 A CN201811555411 A CN 201811555411A CN 109679512 A CN109679512 A CN 109679512A
- Authority
- CN
- China
- Prior art keywords
- oca optical
- adhesive layer
- optical adhesive
- display device
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- 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 for the OCA optical cement of display device and the disassembling method of display device.The display device includes panel and the cover board that is set on the panel.The OCA optical cement includes the first OCA optical adhesive layer and the 2nd OCA optical adhesive layer.The first OCA optical adhesive layer is for being bonded the cover board.The 2nd OCA optical adhesive layer is set in the first OCA optical adhesive layer and for being bonded the panel.The viscosity of the first OCA optical adhesive layer is greater than the viscosity of the 2nd OCA optical adhesive layer.This announcement may be easy to separate OCA optical cement with the panel of display device.
Description
[technical field]
This announcement is related to field of display technology, in particular to a kind of OCA optical cement and display dress for display device
The disassembling method set.
[background technique]
The 3D fitting processing procedure of the curved surface cover board and flexible panel of display device is more complex at present, and binding yield is low, display dress
During the dismantling set and heavy industry, when removing the OCA optical cement of glue panel, it is easy to damage panel and be difficult to heavy industry face
Therefore plate seriously affects the cost of display device.
Therefore it is in need provide it is a kind of for the OCA optical cement of display device and the disassembling method of display device, to solve
Problem of the existing technology.
[summary of the invention]
In order to solve the above technical problems, the one of this announcement be designed to provide for display device OCA optical cement and
The disassembling method of display device is easy to separate OCA optical cement with the panel of display device.
To reach above-mentioned purpose, this announcement provides an OCA optical cement for being used for display device.The display device includes face
Plate and the cover board being set on the panel.The OCA optical cement includes the first OCA optical adhesive layer and the 2nd OCA optical cement
Layer.The first OCA optical adhesive layer is for being bonded the cover board.The 2nd OCA optical adhesive layer is set to the first OCA light
It learns on glue-line and for being bonded the panel.The viscosity of the first OCA optical adhesive layer is greater than the 2nd OCA optical adhesive layer
Viscosity.
In this announcement embodiment therein, the hardening temperature of the first OCA optical adhesive layer is less than the 2nd OCA
The hardening temperature of optical adhesive layer.
This announcement also provides the disassembling method of a display device, comprising:
Freezing step freezes display device to be dismantled with cryogenic temperature, the display device packet to be dismantled
Include the cover board being from top to bottom sequentially bonded, the first OCA optical adhesive layer, the 2nd OCA optical adhesive layer and panel, the first OCA light
The viscosity for learning glue-line is greater than the viscosity of the 2nd OCA optical adhesive layer, and the cryogenic temperature is set as the 2nd OCA optics
The hardening temperature of glue-line；And
Step is disassembled, the display device to be dismantled after taking out freezing separates the panel from the cover board.
In this announcement embodiment therein, the hardening temperature of the first OCA optical adhesive layer is less than the 2nd OCA
The hardening temperature of optical adhesive layer.
In this announcement embodiment therein, the first OCA optical adhesive layer has viscosity under the cryogenic temperature.
In this announcement embodiment therein, the 2nd OCA optical adhesive layer is hardened under the cryogenic temperature.
In this announcement embodiment therein, the disassembling method of the display device further includes cleaning, described
Cleaning includes cleaning to the panel after separation.
In this announcement embodiment therein, the dismantling step includes by the panel from the lid being sequentially bonded
It is separated in plate, the first OCA optical adhesive layer and the 2nd OCA optical adhesive layer.
In this announcement embodiment therein, the disassembling method of the display device further includes cleaning, described
Cleaning includes the first OCA optical adhesive layer and the 2nd OCA optics that heating and removing are fitted on the cover board
Glue-line.
In this announcement embodiment therein, the cleaning includes cleaning to the cover board.
Since this revealed embodiment is in the OCA optical cement of display device and the disassembling method of display device,
For the first OCA optical adhesive layer for being bonded the cover board, the 2nd OCA optical adhesive layer is set to the first OCA optics
On glue-line and for being bonded the panel, and the viscosity of the first OCA optical adhesive layer is greater than the 2nd OCA optical adhesive layer
Viscosity, therefore be easy to separate OCA optical cement with panel.
For the above content of this announcement can be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate institute's accompanying drawings, makees
Detailed description are as follows:
[Detailed description of the invention]
Fig. 1 shows the structural schematic diagram of the OCA optical cement for display device of the embodiment according to this announcement；
Fig. 2 shows the process block diagram of the disassembling method of the display device of the embodiment according to this announcement；
Fig. 3 shows the structural schematic diagram of the display device to be dismantled of the embodiment according to this announcement；And
Fig. 4 shows the schematic diagram separated according to the panel of an embodiment of this announcement from cover board.
[specific embodiment]
In order to which the above-mentioned and other purposes of this announcement, feature, advantage can be clearer and more comprehensible, it is excellent that spy is hereafter lifted into this announcement
Embodiment is selected, and cooperates institute's accompanying drawings, is described in detail below.Furthermore the direction term that this announcement is previously mentioned, such as above and below,
Top, bottom, front, rear, left and right, inside and outside, side layer, around, center, it is horizontal, laterally, vertically, longitudinally, axial direction, radial direction, top layer or
Lowest level etc. is only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand this announcement, and
It is non-to limit this announcement.
The similar unit of structure is to be given the same reference numerals in the figure.
Referring to Fig.1, an embodiment of this announcement provides the OCA optical cement 100 for being used for display device.The display device
200 include panel 202 and the cover board 204 being set on the panel 202.The OCA optical cement 100 includes the first OCA optics
Glue-line 102 and the 2nd OCA optical adhesive layer 104.The first OCA optical adhesive layer 102 is for being bonded the cover board 204.It is described
2nd OCA optical adhesive layer 104 is set in the first OCA optical adhesive layer 102 and for being bonded the panel 202.Described
The viscosity of one OCA optical adhesive layer 102 is greater than the viscosity of the 2nd OCA optical adhesive layer 104.
Specifically, the hardening temperature of the first OCA optical adhesive layer 102 is less than the hard of the 2nd OCA optical adhesive layer 104
Change temperature.
Specifically, the hardening temperature of the viscosity and the first OCA optical adhesive layer 102 of the first OCA optical adhesive layer 102
It is in a linear relationship.The viscosity of the two OCA optical adhesive layer 104 is in a linear relationship with the hardening temperature of two OCA optical adhesive layers 104.
Specifically, the display device 200 is, for example, flexible display apparatus.The panel 202 is, for example, flexible panel.Institute
Stating cover board 204 is, for example, curved surface cover board.
Referring to Figure 2 to Figure 4, the disassembling method 300 of the display device 200 of an embodiment of this announcement, including freezing step
302 and dismantling step 304.
In freezing step 302, display device 200 to be dismantled is freezed with cryogenic temperature, for example, will it is described to
The display device 200 of dismantling is put into refrigerator, and the display device 200 to be dismantled includes the cover board being from top to bottom sequentially bonded
204, the first OCA optical adhesive layer 102, the 2nd OCA optical adhesive layer 104 and panel 202, the first OCA optical adhesive layer 102 are glued
Property be greater than the 2nd OCA optical adhesive layer 104 viscosity, the cryogenic temperature is set as the 2nd OCA optical adhesive layer 104
Hardening temperature.The hardening temperature of the 2nd OCA optical adhesive layer 104 can be determined according to actual test.
Specifically, the display device 200 to be dismantled is, for example, defective products.The i.e. described display device 200 to be dismantled
Including being bonded the undesirable cover board 204 and the panel 202.
In dismantling step 304, the display device 200 to be dismantled after taking out freezing, by the panel 202 from institute
State the separation of cover board 204.Specifically, the dismantling step 304 include by the panel 202 from the cover board 204 being sequentially bonded,
It is separated in the first OCA optical adhesive layer 102 and the 2nd OCA optical adhesive layer 104.
Specifically, the hardening temperature of the first OCA optical adhesive layer 102 is less than the hard of the 2nd OCA optical adhesive layer 104
Change temperature.The first OCA optical adhesive layer 102 does not have fully hardened under the cryogenic temperature and has viscosity.Described second
OCA optical adhesive layer 104 is fully hardened under the cryogenic temperature.Therefore, the first OCA optical adhesive layer 102 and described second
OCA optical adhesive layer 104 remains on the cover board 204, and the panel 202 is without residue glue, i.e., no first OCA optical adhesive layer
102 and the 2nd OCA optical adhesive layer 104 remain on the panel 202, panel 202 described in easy clean can heavy industry
(rework)。
Specifically, the hardening temperature of the viscosity and the first OCA optical adhesive layer 102 of the first OCA optical adhesive layer 102
It is in a linear relationship.The viscosity of the two OCA optical adhesive layer 104 is in a linear relationship with the hardening temperature of two OCA optical adhesive layers 104.
Specifically, the display device 200 is, for example, flexible display apparatus.The panel 202 is, for example, flexible panel.Institute
Stating cover board 204 is, for example, flexible cover plate.
The disassembling method 300 of the display device 200 of one embodiment of this announcement further includes cleaning 306.The cleaning
Step 306 includes cleaning to the panel 202 after separation.Since the surface of the panel 202 is without residue glue, i.e., no institute
State the first OCA optical adhesive layer 102 and the 2nd OCA optical adhesive layer 104 remain on the panel 202, using non-dust cloth plus
A small amount of alcohol simple wiping and the cleaning panel 202 can heavy industrys (rework).
Specifically, the cleaning 306 includes the first OCA that heating and removing are fitted on the cover board 204
Optical adhesive layer 102 and the 2nd OCA optical adhesive layer 104.The cleaning 306 includes cleaning to the cover board 204.
The cover board 204 because material property, such as the material of the cover board 204 are hard and corrosion-resistant, no matter residue glue how much, can all be easy clear
It is clean, it can be by heating and removing the first OCA optical adhesive layer 102 and the 2nd OCA light that are fitted on the cover board 204
Glue-line 104 is learned, non-dust cloth increasing amount alcohol wipe is reused and the cleaning cover board 204 can heavy industry.
Since this revealed embodiment is in the OCA optical cement of display device and the disassembling method of display device,
For the first OCA optical adhesive layer for being bonded the cover board, the 2nd OCA optical adhesive layer is set to the first OCA optics
On glue-line and for being bonded the panel, and the viscosity of the first OCA optical adhesive layer is greater than the 2nd OCA optical adhesive layer
Viscosity, therefore be easy to separate OCA optical cement with panel.
Although this announcement, those skilled in the art have shown and described relative to one or more implementations
It will be appreciated that equivalent variations and modification based on the reading and understanding to the specification and drawings.This announcement includes all such repairs
Change and modification, and is limited only by the scope of the following claims.In particular, to various functions executed by the above components, use
It is intended to correspond in the term for describing such component and executes the specified function of the component (such as it is functionally of equal value
) random component (unless otherwise instructed), even if in structure with execute the exemplary of this specification shown in this article and realize
The open structure of function in mode is not equivalent.In addition, although the special characteristic of this specification is relative to several realization sides
Only one in formula is disclosed, but this feature can with such as can be for a given or particular application expectation and it is advantageous
One or more other features combinations of other implementations.Moreover, with regard to term " includes ", " having ", " containing " or its deformation
For being used in specific embodiments or claims, such term is intended to wrap in a manner similar to the term " comprising "
It includes.
The above is only the preferred embodiments of this announcement, it is noted that for those of ordinary skill in the art, is not departing from
Under the premise of this announcement principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the guarantor of this announcement
Protect range.
Claims (10)
1. a kind of OCA optical cement for display device, the display device includes panel and the lid that is set on the panel
Plate, which is characterized in that the OCA optical cement includes:
First OCA optical adhesive layer, for being bonded the cover board；And
2nd OCA optical adhesive layer is set in the first OCA optical adhesive layer and for being bonded the panel；
Wherein the viscosity of the first OCA optical adhesive layer is greater than the viscosity of the 2nd OCA optical adhesive layer.
2. OCA optical cement as described in claim 1, which is characterized in that the hardening temperature of the first OCA optical adhesive layer is less than
The hardening temperature of the 2nd OCA optical adhesive layer.
3. a kind of disassembling method of display device characterized by comprising
Freezing step freezes display device to be dismantled with cryogenic temperature, the display device to be dismantled include by
Cover board, the first OCA optical adhesive layer, the 2nd OCA optical adhesive layer and the panel being sequentially bonded under above, the first OCA optical cement
The viscosity of layer is greater than the viscosity of the 2nd OCA optical adhesive layer, and the cryogenic temperature is set as the 2nd OCA optical adhesive layer
Hardening temperature；And
Step is disassembled, the display device to be dismantled after taking out freezing separates the panel from the cover board.
4. the disassembling method of display device as claimed in claim 3, which is characterized in that the first OCA optical adhesive layer it is hard
Change the hardening temperature that temperature is less than the 2nd OCA optical adhesive layer.
5. the disassembling method of display device as claimed in claim 4, which is characterized in that the first OCA optical adhesive layer is in institute
Stating has viscosity under cryogenic temperature.
6. the disassembling method of display device as claimed in claim 3, which is characterized in that the 2nd OCA optical adhesive layer is in institute
It states and is hardened under cryogenic temperature.
7. the disassembling method of display device as claimed in claim 3, which is characterized in that it further include cleaning, the cleaning
Step includes cleaning to the panel after separation.
8. the disassembling method of display device as claimed in claim 3, which is characterized in that the dismantling step includes by the face
Plate is separated from the cover board, the first OCA optical adhesive layer and the 2nd OCA optical adhesive layer being sequentially bonded.
9. the disassembling method of display device as claimed in claim 8, which is characterized in that it further include cleaning, the cleaning
Step includes the first OCA optical adhesive layer and the 2nd OCA optical adhesive layer that heating and removing are fitted on the cover board.
10. the disassembling method of display device as claimed in claim 9, which is characterized in that the cleaning includes to described
Cover board is cleaned.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109679512A true CN109679512A (en) | 2019-04-26 |
| CN109679512B CN109679512B (en) | 2021-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811555411.1A Active CN109679512B (en) | 2018-12-18 | 2018-12-18 | OCA optical cement for display device and disassembly method of display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109679512B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736213A (en) * | 2020-12-18 | 2021-04-30 | 重庆莱宝科技有限公司 | Solvent composition for disassembling flexible optical device and application |
| CN113391722A (en) * | 2021-05-26 | 2021-09-14 | 深圳市中深光电股份有限公司 | Method for disassembling touch screen |
| CN113589565A (en) * | 2020-04-30 | 2021-11-02 | 荣耀终端有限公司 | Display module and terminal |
| 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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Cited By (5)
| 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 |
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| CN113391722A (en) * | 2021-05-26 | 2021-09-14 | 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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|---|---|
| CN109679512B (en) | 2021-02-26 |
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