Disassembling method of cover plate glass

Abstract

The invention provides a cover plate glass disassembling method which comprises the following steps: step 1, placing a product to be disassembled on a heating vacuum adsorption platform for heating and vacuum adsorption, and heating the product; 2, after the heating time is completed, a molybdenum wire motor is started, and a molybdenum wire is aligned to the OCA optical cement part through a micrometer capable of being adjusted up and down; thirdly, a molybdenum wire motor cuts a molybdenum wire left and right, a product moves front and back through a platform sliding rail to work, the OCA is separated, and therefore the CG is separated from the LCM display module; and step 4, cleaning the residual OCA optical cement through an OCA adhesion rod so as to remove the residual OCA optical cement on the lower surface of the CG and the upper surface of the upper polaroid. According to the invention, the disassembly process can be reduced, so that related process materials are reduced, and the material cost is reduced.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of screen processing, and in particular to a method for disassembling cover glass. Background Art

[0002] Currently, the mobile phone displays on the market are mainly TFT-LCD (thin-film transistor liquid crystal display) and OLED (organic light-emitting semiconductor). Although LCD technology may not be as good as OLED in terms of display effect, contrast, screen response time, etc., it has a lower production cost and mature production process, and still occupies a certain position in the low-end and mid-range markets. In addition, the service life of LCD screens is usually longer, which can reach tens of thousands of hours, and the performance is stable during use, and it is not easy to have problems such as screen burn-in.

[0003] Both LCD and OLED are inseparable from CG (Cover Glass), so the production process will involve defective repairs. The traditional industry dismantles CG as frozen dismantling. For the frozen dismantling of CG in the TLCM state of the liquid crystal display module, it involves a complex multi-station repair and dismantling process. More repair stations will involve the risk of material scrapping. Summary of the invention

[0004] The present invention mainly provides a method for disassembling a cover glass to solve the technical problems raised in the above background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A method for disassembling a cover glass comprises the following steps:

[0007] Step 1: Place the product to be disassembled on a heated vacuum adsorption platform for heating and vacuum adsorption to heat the product;

[0008] Step 2: After the heating time is completed, the molybdenum wire motor is started, and the molybdenum wire is aligned with the OCA optical glue part through the up and down adjustable micrometer;

[0009] Step 3: The molybdenum wire motor cuts the molybdenum wire left and right, and the product moves forward and backward through the platform slide rail to cut off the OCA optical glue, thus separating the CG and LCM display modules;

[0010] Step 4: Use an OCA adhesive stick to clean the remaining OCA optical glue to remove the OCA optical glue remaining on the lower surface of the CG and the upper surface of the upper polarizer.

[0011] Furthermore, in the step 1, the heating temperature and time of the product are controlled by adjusting the temperature controller in the heating vacuum adsorption platform.

[0012] Furthermore, the product to be disassembled in step one includes a cover glass, an OCA optical adhesive and an LCM display module connected in sequence.

[0013] Furthermore, the LCM display module includes an upper polarizer, a liquid crystal display glass, a lower polarizer, a driving circuit and a backlight source assembly which are connected in sequence.

[0014] Furthermore, a slit-type adhesive is connected between the lower polarizer and the backlight source assembly.

[0015] Furthermore, one side of the base in step one is connected to a main power switch, a motor forward and reverse switch, a temperature controller, a temperature display, a vacuum adsorption switch, a platform heating switch and a timer.

[0016] Furthermore, a platform slide rail is provided on the top of the base in step one, and the base is slidably connected to the heating vacuum adsorption platform through the platform slide rail, and a platform forward and backward moving handle is connected to one side of the heating vacuum adsorption platform.

[0017] Furthermore, two ends of the upper surface of the base are connected with up-and-down adjustable micrometers, and a molybdenum wire is connected between the two up-and-down adjustable micrometers.

[0018] Furthermore, one end of the base is connected to the molybdenum wire motor.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The heating disassembly method can reduce the disassembly process, reduce the process materials involved and reduce material costs.

[0021] 2. The yield rate of heating disassembly can be above 95%, because there are fewer disassembly steps, which improves the disassembly yield rate.

[0022] 3. The heating and disassembly process is reduced, the rework time is relatively short, and the labor cost is reduced.

[0023] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the heated vacuum adsorption platform of the present invention.

[0026] In the figure: 1. Heated vacuum adsorption platform; 2. Molybdenum wire; 3. Platform slide rail; 4. Molybdenum wire motor; 5. Up and down adjustable micrometer; 6. Main power switch; 7. Motor forward and reverse switch; 8. Temperature controller; 9. Temperature display; 10. Vacuum adsorption switch; 11. Platform heating switch; 12. Platform forward and backward moving handle; 13. Timer; 14. Cover glass; 15. OCA optical glue; 16. Upper polarizer; 17. Liquid crystal display glass; 18. Lower polarizer; 19. Backlight assembly; 20. LCM display module; 21. Slot-type glue. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] For examples, please refer to the attached Figure 1 A method for disassembling a cover glass 14 comprises the following steps:

[0031] Step 1: Place the product to be disassembled on the heated vacuum adsorption platform 1 for heating and vacuum adsorption to heat the product;

[0032] Step 2: After the heating time is completed, the molybdenum wire motor 4 is started, and the molybdenum wire 2 is aligned with the OCA optical glue 15 through the up and down adjustable micrometer 5;

[0033] Step 3: The molybdenum wire motor 4 separates the molybdenum wire 2 to the left and right, and the product moves forward and backward through the platform slide rail 3 to separate the OCA optical glue 15, thereby separating the CG and LCM display modules 20;

[0034] Step 4: Clean the remaining OCA optical glue 15 with an OCA adhesive stick to remove the OCA optical glue 15 remaining on the lower surface of the CG and the upper surface of the upper polarizer 16.

[0035] It should be noted that, in the present embodiment, in the step 1, the heating temperature and time of the product are controlled by adjusting the temperature controller in the heating vacuum adsorption platform 1;

[0036] Furthermore, the product to be disassembled in step 1 includes a cover glass 14, an OCA optical adhesive 15 and an LCM display module 20 connected in sequence;

[0037] Furthermore, the LCM display module 20 includes an upper polarizer 16 , a liquid crystal display glass 17 , a lower polarizer 18 , a driving circuit and a backlight source assembly 19 which are connected in sequence.

[0038] Furthermore, a slit-type glue is connected between the lower polarizer 18 and the backlight source assembly 19;

[0039] Furthermore, the cover glass 14, as the outermost layer of the touch screen, has the characteristics of high hardness, pressure resistance, and scratch resistance, and protects the internal LCM display module 20 components from damage; OCA optical glue is a colorless, transparent, and high-transmittance special adhesive, which is characterized by a light transmittance of more than %. Through the full bonding technology, the CG and the LCM display module 20 are seamlessly bonded to enhance the screen display effect;

[0040] The LCM display module 20 is the core component of the liquid crystal display technology, which integrates key components such as the upper polarizer 16, the liquid crystal display glass 17, the lower polarizer 18, the driving circuit and the backlight assembly 19;

[0041] The upper polarizer 16 can filter out the light perpendicular to its polarization direction, and only allow the light parallel to its polarization direction to pass through, and convert these light into polarized light to be directed to the prism; the liquid crystal display must rely on polarized light to form an image, and the lower polarizer 18 is responsible for standardizing the direction of the light to be consistent before sending it to the liquid crystal layer;

[0042] The function of LCD liquid crystal glass is to filter light and display images. The core function of LCD liquid crystal glass is to change the refraction of light by controlling the arrangement of liquid crystal molecules, thereby displaying images. The fixing double-sided adhesive tape mainly plays the role of fixing and shading. The fixing function is to fix the lower polarizer 18 and the BLU backlight assembly 19. The shading function is to block or reduce the influence of external light on the internal light of the backlight, thereby improving the brightness and contrast of the backlight and improving the visual effect.

[0043] The main function of the BLU backlight assembly 19 is to provide light for the liquid crystal display so that it can display images.

[0044] Furthermore, one side of the base in step one is connected with a main power switch 6, a motor forward and reverse switch 7, a temperature controller 8, a temperature display 9, a vacuum adsorption switch 10, a platform heating switch 11 and a timer 13.

[0045] Furthermore, a platform slide rail 3 is provided at the top of the base in step one, and the base is slidably connected to the heating vacuum adsorption platform 1 through the platform slide rail 3. A platform forward and backward moving handle 12 is connected to one side of the heating vacuum adsorption platform 1.

[0046] Furthermore, two ends of the upper surface of the base are connected with up-and-down adjustable micrometers 4 , and a molybdenum wire 2 is connected between the two up-and-down adjustable micrometers 4 .

[0047] Furthermore, one end of the base is connected to the molybdenum wire motor 5 .

[0048] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A method for disassembling a cover glass, characterized in that: The following steps are involved: Step 1: Place the product to be disassembled on the heated vacuum adsorption platform (1) on the base, heat it and perform vacuum adsorption to heat the product; Step 2: After the heating time is completed, the molybdenum wire motor (4) is started, and the molybdenum wire (2) is aligned with the OCA optical adhesive part through the up and down adjustable micrometer (5); Step 3: The molybdenum wire motor (4) separates the molybdenum wire (2) to the left and right, and the product moves forward and backward through the platform slide rail (3) to separate the OCA optical glue, thereby separating the CG and LCM display modules; Step 4: Use an OCA adhesive stick to clean the remaining OCA optical glue to remove the OCA optical glue remaining on the lower surface of the CG and the upper surface of the upper polarizer.

2. A method for disassembling cover glass according to claim 1, characterized in that: In the step 1, the heating temperature and time of the product are adjusted and controlled by a temperature controller in the heating vacuum adsorption platform (1).

3. The method for disassembling cover glass according to claim 1, characterized in that: The product to be disassembled in step one comprises a cover glass (14), an OCA optical adhesive (15), and an LCM display module (20) which are connected in sequence.

4. The method for disassembling cover glass according to claim 1, characterized in that: The LCM display module (20) comprises an upper polarizer (16), a liquid crystal display glass (17), a lower polarizer (18), a drive circuit and a backlight source assembly (19) which are connected in sequence.

5. The method for disassembling cover glass according to claim 1, characterized in that: A slit-shaped adhesive (21) is connected between the lower polarizer (18) and the backlight source assembly (6).

6. The method for disassembling cover glass according to claim 1, characterized in that: One side of the base in step 1 is connected to a main power switch (6), a motor forward and reverse switch (7), a temperature controller (8), a temperature display (9), a vacuum adsorption switch (10), a platform heating switch (11) and a timer (13).

7. The method for disassembling cover glass according to claim 1, characterized in that: A platform slide rail (3) is provided at the top of the base in step 1, and the base is slidably connected to the heating vacuum adsorption platform (1) via the platform slide rail (3), and a platform forward and backward moving handle (12) is connected to one side of the heating vacuum adsorption platform (1).

8. The method for disassembling cover glass according to claim 1, characterized in that: Two ends of the upper surface of the base are connected with up-and-down adjustable micrometers (4), and a molybdenum wire (2) is connected between the two up-and-down adjustable micrometers (4).

9. The method for disassembling cover glass according to claim 1, characterized in that: One end of the base is connected to a molybdenum wire motor (5).

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