CN113391722B - Method for disassembling touch screen - Google Patents
Method for disassembling touch screen Download PDFInfo
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- CN113391722B CN113391722B CN202110575529.6A CN202110575529A CN113391722B CN 113391722 B CN113391722 B CN 113391722B CN 202110575529 A CN202110575529 A CN 202110575529A CN 113391722 B CN113391722 B CN 113391722B
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- touch panel
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Abstract
The invention relates to a method for disassembling a touch screen, which comprises the following steps: providing a touch screen, wherein the touch screen comprises a touch panel and a display module, the touch panel is connected with the display module through OCA optical cement, and the display module comprises a display panel and a backlight plate which are arranged in a stacked mode; dispensing at least part of the edges of the display panel and the backlight plate so that the edges of the backlight plate are connected with the display panel; freezing to disassemble the touch panel and the display module to separate the touch panel and the display module. According to the method for disassembling the touch screen, the backlight plate of the display module is adhered to the display panel through dispensing, the display panel with high rigidity can provide good support and protection for the backlight plate, the rejection rate of the display module when the touch screen is disassembled through freezing is greatly reduced, a device for specially protecting the backlight plate is not required to be introduced, and the recovery of the display module is realized through low cost.
Description
Technical Field
The invention relates to the technical field of touch screens, in particular to a method for disassembling a touch screen.
Background
With the application of touch screen technology in mobile terminals, more and more users put forth higher requirements on the touch screen, so that the thickness of the touch screen is required to be reduced as much as possible, and meanwhile, the touch screen is required to have a good display effect. The touch panel and the display module are bonded through the OCA optical adhesive, and the formed full-lamination touch screen has the advantages of greatly improving the display effect due to the high light transmittance of the OCA optical adhesive while reducing the thickness.
In the bonding process of OCA optical cement or after a touch screen is used for a long time, foreign matters or bubbles are very easy to generate at the bonding position of the OCA optical cement, the touch panel and the display module of the touch screen are required to be disassembled, and the OCA optical cement is reduced by freezing, so that the nondestructive separation of the display module and the touch panel is realized. However, when the touch panel and the display module are disassembled through freezing, as the backlight plate of the display module is thinner and has lower connection strength with the display panel, when the temperature is lower than-70 ℃, the thinner backlight plate is easy to deform and lose efficacy in the freezing treatment and the subsequent disassembly process when receiving impact or local stress concentration, so that the whole display module is scrapped after being disassembled, and after the touch panel is disassembled, a new display module is required to be replaced, thereby causing great waste.
Disclosure of Invention
Based on this, it is necessary to provide a method for disassembling a touch screen, so as to solve the problem that the display module is scrapped due to the easy deformation of the backlight plate of the display module when the touch panel and the display module of the touch screen are disassembled by freezing at present.
The invention provides a method for disassembling a touch screen, which comprises the following steps:
providing a touch screen, wherein the touch screen comprises a display module and a touch panel, the touch panel is connected with the display module through OCA optical cement, and the display module comprises a display panel and a backlight plate which are arranged in a stacked mode;
dispensing at least part of edges of the display panel and the backlight plate so that the backlight plate is connected with the display panel;
and freezing and disassembling the touch panel and the display module to separate the touch panel and the display module.
In one embodiment, the step of freezing and disassembling the touch panel and the display module to separate the touch panel and the display module includes:
cryopreserving the touch screen in an environment having a temperature of-120 ℃ to-70 ℃;
and taking out the touch screen after the preset time, and separating the touch panel from the display module.
In one embodiment, the preset time is 15s to 900s.
In one embodiment, before the step of dispensing at least part of the edges of the display panel and the backlight plate to connect the edges of the backlight plate with the display panel, the method further comprises the steps of: and attaching a protective lining on the touch panel, wherein the dispensing position between the display panel and the backlight plate corresponds to the attaching position of the protective lining.
In one embodiment, the protective liner is release paper, a traceless tape or a textured tape.
In one embodiment, after the step of freezing and disassembling the touch panel and the display module to separate the touch panel and the display module, the method further includes the steps of: and cleaning the residual OCA optical cement on the touch panel and/or the display module.
In one embodiment, the step of cleaning the OCA optical cement remained on the touch panel and/or the display module includes: and heating to melt the OCA optical cement, and adsorbing the dissolved OCA optical cement by utilizing vacuum.
In one embodiment, in the step of dispensing at least part of the edges of the display panel and the backlight panel so that the edges of the backlight panel are connected to the display panel, the glue used is blue glue or UV-curable glue.
In one embodiment, after the step of freezing and disassembling the touch panel and the display module to separate the touch panel and the display module, the method further includes the steps of: and removing the blue glue or the UV curing glue at the edges of the display panel and the backlight plate, and cleaning the touch panel and the display module.
In one embodiment, after the step of freezing and disassembling the touch panel and the display module to separate the touch panel and the display module, the method further includes the steps of: and performing function detection on the touch panel and the display module.
In one embodiment, after the step of freezing and disassembling the touch panel and the display module to separate the touch panel and the display module, the method further includes the steps of: and attaching a protective film on the touch panel and/or the display module.
According to the method for disassembling the touch screen, the connection strength between the display panel and the backlight plate is improved through dispensing before the touch screen is frozen, so that the backlight plate and the display panel form a whole in the disassembling process, the backlight plate is supported and protected through the display panel with high rigidity, the yield of the display module after the touch panel and the display module are disassembled is remarkably improved, the waste of the display module is avoided, meanwhile, the disassembling operation is simple and direct, a special disassembling tool is not required to be introduced in the disassembling process, and the disassembling cost is further reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a touch screen disassembled by the method for disassembling a touch screen according to the present invention;
FIG. 2 is an exploded view of the structure of the touch screen shown in FIG. 1;
FIG. 3 is a top view of the touch screen shown in FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a flowchart illustrating steps of a method for disassembling a touch screen according to an embodiment of the present invention;
FIG. 6 is a flowchart showing steps for freezing and disassembling a touch panel and a display module in the method for disassembling a touch screen according to the present invention;
FIG. 7 is a schematic view of a protective liner according to another embodiment of the method for removing a touch screen of the present invention;
FIG. 8 is a flowchart illustrating steps of another embodiment of a method for disassembling a touch screen according to the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the present invention, when a layer is referred to as being "on" another layer, it can be directly formed on the other layer or intervening layers may also be present. It will be understood, therefore, that when a layer is referred to as being "directly on" another layer, there are no intervening layers interposed therebetween.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 5, fig. 1 is a schematic structural view showing a touch screen according to an embodiment, fig. 2 is an exploded structural view of the touch screen shown in fig. 1, fig. 3 is a top view of the touch screen shown in fig. 1, fig. 4 is a partial enlarged view of a portion of fig. 3, and fig. 5 is a flowchart illustrating steps of an example of a method for disassembling a touch screen according to the present invention, the method for disassembling a touch screen including the steps of:
in step S120, a touch screen is provided, the touch screen includes a touch panel 200 and a display module 100, the touch panel 200 is connected with the display module 100 through OCA optical cement 300, the display module 100 includes a display panel 110 and a backlight plate 120 which are stacked, and the display panel 110 and the backlight plate 120 are connected through double-sided adhesive.
In step S140, dispensing is performed on at least part of the edges of the display panel 110 and the backlight 120, so that the display panel 110 and the backlight 120 are connected. Specifically, the glue is dispensed at a plurality of points on the sides of the display panel 110 and the backlight 120, and the glue 400 is cured to form glue points, and the plurality of glue points on the sides are used to connect the display panel 110 and the backlight 120, so that adhesion between the glue points should be avoided.
In step S160, the touch panel 200 and the display module 100 are frozen and disassembled to separate the touch panel 200 and the display module 100. Since the OCA optical adhesive 300 has strong viscosity at normal temperature, but the viscosity is reduced when the temperature is reduced, the lower the temperature is, the weaker the viscosity of the OCA optical adhesive 300 is, so that the viscosity of the OCA optical adhesive 300 connecting the touch panel 200 and the display module 100 can be reduced or even lost by freezing treatment, thereby realizing the separation of the touch panel 200 and the display module 100. Specifically, the separation of the touch panel 200 and the display module 100 may be achieved by separating the touch panel 200 and the display module 100 in such a manner that the touch panel 200 and the display module 100 are slightly deformed, or by inserting a filament or a sheet between the touch panel 200 and the display module 100.
In the present embodiment, since the double-sided tape adhered to the display panel 110 and the backlight 120 is insufficient in adhesiveness, and the double-sided tape is lowered in adhesiveness after the freezing process of step S160, the double-sided tape after the freezing process of the touch screen cannot effectively adhere the display panel 110 and the backlight 120. Bonding the display panel 110 and the backlight 120 by the glue 400 reinforces the connection strength between the components of the display assembly. The advantage of setting up like this is that for the in-process of disassembling the touch-sensitive screen, can not take place the separation between display panel 110 and the back light plate 120 of display module 100, not only saved the process of equipment display panel 110 and being shaded when reassembleing the touch-sensitive screen, in addition at the in-process of disassembling the touch-sensitive screen, the great display panel 110 of rigidity can provide better support and protection for back light plate 120, when greatly reducing the disability rate of display panel 110 when disassembling the touch-sensitive screen, need not to introduce the device that is used for specially protecting back light plate 120, thereby realized disassembling the touch-sensitive screen into touch-sensitive panel 200 and display module 100 through lower cost, and promoted the efficiency when reloading the touch-sensitive screen.
In the present embodiment, step S140 connects the display panel 110 and the backlight 120 by dispensing. On the one hand, since the display panel 110 and the backlight 120 are thin, the adhesive force of the single adhesive point formed by the multi-point coated adhesive 400 after curing is small, when the connection strength of the display panel 110 and the backlight 120 is not required to be reinforced by the adhesive 400, the adhesive point can be easily removed under the action of external force, and meanwhile, in the project of disassembling the touch screen, the falling or breaking of the single adhesive point cannot affect other adhesive points due to no adhesion between the adhesive points.
In the actual disassembly process, the more the number of dispensing in step S140, the stronger the adhesive force between the display panel 110 and the backlight plate 120, the more the number of dispensing between the display panel 110 and the backlight plate 120 can be determined by the area of the display assembly, and the larger the area of the display assembly is, the larger the deformation of the display assembly is in disassembly, so that the more the number of dispensing is needed, in practice, the longer the time needed in the process of dispensing or disassembly is, so that the number of dispensing should be reduced as much as possible on the premise of ensuring that the display panel 110 and the backlight plate 120 have better connection strength in the process of disassembly.
In one embodiment, the temperature of the freeze-dismantling of step S160 is from-120 ℃ to-70 ℃, e.g. can be-70 ℃, -80 ℃, -100 ℃, or-120 ℃. The lower the temperature, the weaker the viscosity of the OCA optical adhesive 300, and as the temperature decreases, the greater the deformation of the backlight 120, which may result in failure of the disassembled display module 100. The reasonable temperature is selected to improve the disassembly efficiency and ensure the yield of the disassembled display module 100.
In other embodiments, the temperature of the freezing and disassembling in step S160 may be a temperature curve that changes with time, and by reasonably setting the temperature change curve in the freezing and disassembling process, the damage of the backlight plate 120 caused by the too fast local deformation of the backlight plate 120 in the disassembling process due to the too fast deformation rate of the display panel 110 and the backlight plate 120 can be avoided, and meanwhile, the falling or breakage of the glue 400 adhered between the display panel 110 and the backlight plate 120 caused by the too fast deformation rate of the display panel 110 and the backlight plate 120 can be prevented, so that the better connection cannot be formed between the display panel 110 and the backlight plate 120 in the disassembling process, and the display panel 110 cannot form effective protection for the backlight plate 120, so that the backlight plate 120 deforms too much in the disassembling process, resulting in the rejection of the display module 100.
Referring to fig. 6, in one embodiment, the step of freezing and disassembling the touch panel 200 and the display module 100 to separate the touch panel 200 and the display module 100 includes:
step S161, freezing and storing the touch screen in an environment with the temperature of-120 ℃ to-70 ℃.
In step S162, the touch screen is taken out after the preset time, and the touch panel 200 is separated from the display module 100.
In one embodiment, the environment with the temperature of-120 ℃ to-70 ℃ in step S161 can be implemented by an industrial refrigerator or a liquid nitrogen freezing device, which can precisely control the temperature and the storage time of the touch screen in the freezing process, and in other embodiments, the freezing process of the touch screen can be implemented by directly cooling the touch screen by liquid nitrogen, and the implementation mode of the freezing process is not limited.
In one embodiment, in step S162, the touch panel 200 and the display module 100 are separated by inserting a sheet between the touch panel 200 and the display module 100, and in particular, the sheet may be a cutter with air holes, and after the tip of the cutter is inserted between the touch panel 200 and the display module 100, the air holes may be used to blow dust-free gas with a certain pressure between the touch panel 200 and the display module 100, thereby realizing rapid separation of the touch panel 200 and the display module 100. The advantage that sets up like this lies in, does not need the operator direct contact touch-sensitive screen in the separation process, avoids the operator to be frostbite the hand, and whole disassemble the process simultaneously can adopt mechanized operation, has promoted the efficiency of disassembling.
In other embodiments, the touch panel 200 and the display module 100 may be separated by locally avoiding the touch screen and applying pressure, and the specific method for separating the touch panel 200 and the display module 100 is not limited herein.
In one embodiment, in step S162, the preset time is 15S-900S, for example, the preset time may be 15S, 60S, 300S or 900S. The length of the preset time is related to the area of the OCA optical cement 300 distributed between the touch panel 200 and the display module 100, the larger the area of the OCA optical cement 300 distributed, the longer the time required for the freezing treatment when the touch screen is disassembled, the length of the preset time is also related to the thickness of the OCA optical cement 300, the thicker the thickness of the OCA optical cement 300, and the longer the time required for the storage in the temperature environment of-120 ℃ to-70 ℃ when the touch screen is disassembled. The preset time of the freezing treatment touch screen is strictly controlled, so that the display module 100 and the touch panel 200 can be separated more effectively and easily, and the display module 100 and the touch panel 200 are not damaged after being separated.
As shown in fig. 3, 4, 7 and 8, in one embodiment, before the step of dispensing at least part of the edges of the display panel 110 and the backlight 120 to connect the edges of the backlight 120 with the display panel 110, the method further includes step S110: the protective liner 500 is attached to the touch panel 200, and the dispensing position between the display panel 110 and the backlight 120 corresponds to the attaching position of the protective liner 500.
Specifically, by attaching the protective liner 500 to the touch panel 200, the uncured glue 400 can be prevented from flowing to the touch panel 200 during dispensing, so that adhesion between the touch panel 200 and the display module 100 after curing the glue 400 is avoided, and subsequent steps of separating the touch panel 200 and the display module 100 are affected.
In one embodiment, the material of the protective liner 500 is release paper, and in other embodiments, the protective liner 500 may be a plain paper sheet, a seamless adhesive tape, or a masking tape, and the material of the protective liner 500 is not limited.
In combination with fig. 7, in one embodiment, the protective liner 500 of the same touch screen is a plurality of small pieces, and the placement position of each protective liner 500 corresponds to the dispensing position between the display panel 110 and the backlight panel 120 in the subsequent step, which is beneficial to the control of the production cost because the protective liner 500 can be a universal piece and can be applied to the protection of the touch panels 200 of touch screens with different sizes or shapes, without designing a separate protective liner 500 for each touch screen.
In other embodiments, the protection liner 500 of the same touch screen may be a single piece, and is designed separately according to the shapes of the touch panel 200 and the display module 100, so that the advantage of the arrangement is that, because the shapes of the protection liner 500 are designed separately according to the shapes of the touch panel 200 and the display module 100, the protection liner 500 can protect the touch panel 200 more comprehensively, and meanwhile, because the same touch screen corresponds to only one protection liner 500, the time for placing and removing the protection liner 500 is shortened, and the operation efficiency can be greatly improved.
Referring to fig. 8, in one embodiment, after the step of freezing and disassembling the touch panel 200 and the display module 100 to separate the touch panel 200 and the display module 100, the method further includes step S170: cleaning the OCA optical adhesive 300 remained on the touch panel 200 and/or the display module 100. The effect of impurities or bubbles in the original OCA optical adhesive 300 on the display effect of the re-attached touch screen can be avoided by removing the OCA optical adhesive 300 remained on the touch panel 200 and the display module 100, and the uniformity of the thickness of the newly formed OCA optical adhesive 300 can be influenced by the OCA optical adhesive 300 remained on the touch panel 200 and the display module 100 when the touch panel 200 and the display module 100 are re-attached, so that the yield of the re-attached touch panel 200 and the display module 100 and the display effect of the re-attached touch screen are influenced.
In one embodiment, in the step of cleaning the OCA optical cement 300 remaining on the touch panel 200 and/or the display module 100 in step S170, the remaining OCA optical cement 300 is melted by heating the display module 100 in a high-temperature environment, and the dissolved OCA optical cement 300 is removed by vacuum adsorption, and specifically, the high-temperature environment is an environment with a temperature of 40-70 ℃, for example, an environment with a temperature of 40 ℃, 50 ℃, 60 ℃ or 70 ℃. The temperature of the high temperature environment is strictly controlled, so that the OCA optical cement 300 remained on the display module 100 can be more thoroughly removed while the touch panel 200 and the display module 100 are prevented from being damaged.
In one embodiment, at least part of the edges of the display panel 110 and the backlight 120 are glued, so that the glue 400 is blue glue or UV-curable glue in the step of connecting the edges of the backlight 120 with the display panel 110, and the advantage of gluing the display panel 110 and the backlight 120 with the blue glue is that the blue glue can be cured rapidly within a few seconds when being coated on the side of the display module 100, thereby improving the operation efficiency. When the blue gel needs to be removed, the solidified blue gel can be separated from the display module 100 under a certain external force, and the operation is simple. The advantage of connecting the display panel 110 and the backlight 120 by the UV curable glue is that it takes a lot of time to adjust the UV curable glue applied to the sides of the display panel 110 and the backlight 120 before the UV curable glue is irradiated by the UV light, by utilizing the characteristic that the UV glue is cured under the irradiation of the UV light. When the cured UV curing glue is required to be removed, the method can be realized by heating, dissolving and removing or dissolving the UV curing glue by an organic solvent, and the method for removing the UV curing glue by the dissolving method does not need to identify glue points, so that the method can be combined with automation equipment in a simpler way in industry, and is beneficial to realizing the automation of touch screen disassembly. In other embodiments, the glue 400 in step S140 may be other types of glue, and the specific type of glue 400 is not limited herein.
Referring to fig. 8, in one embodiment, after the step of freezing and disassembling the touch panel 200 and the display module 100 to separate the touch panel 200 and the display module 100, step S180 is further included to remove blue glue or UV-curable glue at the edges of the display panel 110 and the panel, and clean the touch panel 200 and the display module 100.
Specifically, the touch panel 200 and the display module 100 may be cleaned by wiping with alcohol, a solution containing dimethylpentane, or a solution containing acetone, or the touch panel 200 and the display module 100 may be cleaned by placing them in an ultrasonic cleaning apparatus containing a cleaning solution. Here, a specific manner of cleaning the display module 100 is not limited.
Referring to fig. 8, in one embodiment, after the step of freezing and disassembling the touch panel 200 and the display module 100 to separate the touch panel 200 and the display module 100, the method further includes step S190 to perform function detection on the touch panel 200 and the display module 100.
Specifically, the function detection of the display module 100 may be one or more of black screen detection, different-picture detection, black-and-white point detection, two-point detection and red-blue plate detection. The functional detection of the touch panel 200 may be one or more of a touch precision test, a touch sensitivity test, a touch accuracy test, and a recognition separation test. The display module 100 with the function problematic after disassembly can be removed through the detection, so that the display module 100 is ensured to be a qualified product when the touch screen is reinstalled in the follow-up process.
Referring to fig. 8, in one embodiment, after the step of freezing and disassembling the touch panel 200 and the display module 100 to separate the touch panel 200 and the display module 100, the method further includes a step S200 of attaching a protective film on the touch panel 200 and/or the display module 100. The protective film can prevent the disassembled touch panel 200 and display module 100 from being contaminated with dust, and the protective film can be an antistatic film, thereby further preventing the touch panel 200 and the display module 100 from being contaminated by dust.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. A method of disassembling a touch screen, comprising the steps of:
providing a touch screen, wherein the touch screen comprises a display module and a touch panel, the touch panel is connected with the display module through OCA optical cement, and the display module comprises a display panel and a backlight plate which are arranged in a stacked mode;
dispensing at least part of edges of the display panel and the backlight plate so that the backlight plate is connected with the display panel; wherein the glue is blue glue or UV curing glue;
freezing and disassembling the touch panel and the display module to separate the touch panel and the display module;
before the step of dispensing at least part of the edges of the display panel and the backlight so that the edges of the backlight are connected with the display panel, the method further comprises the steps of: attaching a protective lining on the touch panel, wherein the dispensing position between the display panel and the backlight plate corresponds to the attaching position of the protective lining;
the step of freezing and disassembling the touch panel and the display module to separate the touch panel and the display module comprises the following steps:
cryopreserving the touch screen in an environment having a temperature of-120 ℃ to-70 ℃;
taking out the touch screen after a preset time, and separating the touch panel from the display module; the preset time is 15s to 900s;
the protective lining is release paper, a traceless adhesive tape or a masking tape;
after the step of freezing and disassembling the touch panel and the display module to separate the touch panel and the display module, the method further comprises the steps of: cleaning OCA optical cement remained on the touch panel and/or the display module;
the step of cleaning the residual OCA optical cement on the touch panel and/or the display module comprises the following steps: heating and melting the OCA optical cement, and adsorbing the dissolved OCA optical cement by vacuum;
after the step of freezing and disassembling the touch panel and the display module to separate the touch panel and the display module, the method further comprises the steps of: and removing the blue glue or the UV curing glue at the edges of the display panel and the backlight plate, and cleaning the touch panel and the display module.
2. The method of disassembling a touch screen according to claim 1, further comprising, after the step of freezing to disassemble the touch panel and the display module to separate the touch panel and the display module, the steps of: and performing function detection on the touch panel and the display module.
3. The method of disassembling a touch screen according to claim 1, further comprising, after the step of freezing to disassemble the touch panel and the display module to separate the touch panel and the display module, the steps of: and attaching a protective film on the touch panel and/or the display module.
4. The method of dismantling a touch screen of claim 2 wherein the function detection includes one or more of black screen detection, off-picture detection, black and white spot detection, two spot detection, and red and blue plate detection.
5. A method of dismantling a touch screen as claimed in claim 3 wherein the protective film is an antistatic film.
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| CN202110575529.6A CN113391722B (en) | 2021-05-26 | 2021-05-26 | Method for disassembling touch screen |
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| CN113741072A (en) * | 2021-09-24 | 2021-12-03 | 湖北长江新型显示产业创新中心有限公司 | Disassembling process of display module |
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