CN111070151B - Method for disassembling and repairing backlight source of display screen - Google Patents
Method for disassembling and repairing backlight source of display screen Download PDFInfo
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- CN111070151B CN111070151B CN201911351528.2A CN201911351528A CN111070151B CN 111070151 B CN111070151 B CN 111070151B CN 201911351528 A CN201911351528 A CN 201911351528A CN 111070151 B CN111070151 B CN 111070151B
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- display screen
- backlight source
- disassembling
- molybdenum wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a method for disassembling and repairing a display screen backlight source, which comprises the following steps: the method comprises the steps of firstly placing a display screen on a molybdenum wire machine, cutting and cutting OC glue between a display screen body and a backlight source between one end, connected with an FPC, of the backlight source of the display screen and the display screen body by using the molybdenum wire machine, then evenly coating UV glue on one end, not connected with the FPC, of the backlight source of the display screen and the left side and the right side of the display screen, adhering masking tape on the left side and the right side of the display screen, then placing the display screen into an industrial refrigerator for freezing, finally taking out the frozen display screen from the industrial refrigerator, disassembling by using a disassembling jig, tearing the masking tape off, inserting the disassembling jig between one end, connected with the FPC, of the backlight source and the display screen body, and rotating the disassembling jig to separate the display screen body from the backlight source. The invention has the advantages of convenient disassembly of the backlight source of the display screen, difficult dust and other impurities in the backlight source, improvement of the yield of the backlight source and the like.
Description
Technical Field
The invention belongs to the technical field of repair screens, and particularly relates to a method for disassembling and repairing a backlight source of a display screen.
Background
Along with the progress of science and technology, electronic product such as cell-phone has got into comprehensive screen era, the display screen of a full face screen mainly comprises CG apron, display screen body and backlight, electronic product such as cell-phone of full face screen is when using, the broken condition of full face screen damage often can take place, if wholly change the screen comprehensively, the cost can be very high, but in prior art when dismantling the back light and reprocess and reuse, impurity such as the dust of easily advancing between back light and the display screen body leads to the yield of backlight not high, and scribble OC glue between back light and the display screen body, make back light and display screen body difficult separation when dismantling.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the method for disassembling and repairing the display screen backlight source, which is convenient to disassemble the display screen backlight source, prevents impurities such as dust from entering the backlight source and improves the yield of the backlight source.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for disassembling and repairing a display screen backlight source comprises the following steps:
(1) placing the display screen to be repaired on a molybdenum wire machine, lifting the molybdenum wire of the molybdenum wire machine by using a bamboo stick to enable the molybdenum wire to be aligned between one end, connected with the FPC, of the backlight source of the display screen and the display screen body, then starting the molybdenum wire machine to push the display screen, cutting the part between one end, connected with the FPC, of the backlight source of the display screen and the display screen body by using the molybdenum wire machine, cutting off OC glue between the display screen body and the backlight source, wherein the cutting length is 5 mm;
(2) taking down the display screen subjected to OC glue cutting from the molybdenum wire machine, placing the display screen on a glue dispensing table of a glue dispensing machine, and starting the glue dispensing machine to uniformly coat UV glue on one end of a backlight source of the display screen, which is not connected with an FPC (flexible printed circuit) and the left side and the right side of the display screen by using the glue dispensing machine;
(3) taking down the display screen coated with the UV adhesive from a dispensing table of a dispenser, placing the side, attached to the display screen body, of the backlight source on a workbench downwards, taking out the masking tape, adhering the masking tape to the left side and the right side of the display screen, and placing the display screen on a tray;
(4) the display screen is put into an industrial refrigerator for freezing, the freezing temperature range is-135 ℃ to-145 ℃, and the freezing time range is 35min to 40 min;
(5) the display screen which is to be frozen is taken out of the industrial refrigerator and is disassembled by utilizing the disassembling jig, the masking tape is torn down, the disassembling jig is inserted between one end of the backlight source connected with the FPC and the display screen body, and the disassembling jig is rotated to separate the display screen body from the backlight source.
Preferably, the freezing temperature in the step (4) is-140 ℃, and the freezing time is 40 min.
By adopting the technical scheme, the invention has the following beneficial effects:
(1) according to the display screen, the UV glue is uniformly coated on one end, which is not connected with the FPC, of the backlight source and the left side edge and the right side edge of the display screen, so that impurities such as dust can be prevented from entering the backlight source, the backlight source is prevented from being damaged by the impurities, and the yield of the backlight source is improved;
(2) in the step (3), the masking tapes are adhered to the left side and the right side of the display screen, so that impurities such as dust can be prevented from entering the backlight source again, secondary protection is performed, and the yield of the recycled backlight source is greatly improved;
(3) in the step (4), the display screen is placed in an industrial refrigerator for freezing, and the OC adhesive between the display screen body and the backlight source is cut in the step (1), so that a disassembling jig can be conveniently inserted between the display screen body and the backlight source, and the display screen and the backlight source can be conveniently disassembled and repaired;
in summary, the invention has the advantages of facilitating the disassembly of the display screen backlight, preventing the impurities such as dust from entering the backlight, improving the yield of the backlight, and the like.
Detailed Description
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention discloses a method for disassembling and repairing a display screen backlight source, which comprises the following steps:
(1) placing a display screen needing to be repaired on a molybdenum wire machine, lifting a molybdenum wire of the molybdenum wire machine by using a bamboo stick to enable the molybdenum wire to be aligned between one end, connected with an FPC, of a backlight source of the display screen and a display screen body, then starting the molybdenum wire machine to push the display screen, cutting between one end, connected with the FPC, of the backlight source of the display screen and the display screen body by using the molybdenum wire machine, cutting off OC glue between the display screen body and the backlight source, aligning the edge of one end, connected with the FPC, of the backlight source to the molybdenum wire of the molybdenum wire machine when cutting is carried out, and then pushing the backlight source to cut, wherein the cutting length is 5 mm;
(2) the display screen with the OC adhesive cut is taken down from the molybdenum wire machine, then the display screen is placed on a dispensing table of a dispensing machine, then the dispensing machine is started, and UV adhesive is uniformly coated on one end, which is not connected with the FPC, of the backlight source of the display screen and the left side edge and the right side edge of the display screen by the dispensing machine, so that dust is prevented from entering the backlight source;
(3) taking down the display screen coated with the UV adhesive from a dispensing table of a dispenser, placing the side, attached with the display screen body, of the backlight source on a workbench downwards, taking out the masking tape, adhering the masking tape on the left side and the right side of the display screen, further protecting the backlight source, preventing dust from entering the backlight source again, and placing the display screen on a tray;
(4) the display screen is placed into an industrial refrigerator for freezing, the temperature of the industrial refrigerator is set to be-140 ℃, and the freezing time is set to be 40 min;
(5) the display screen which is to be frozen is taken out of the industrial refrigerator and disassembled by utilizing the disassembling jig, the masking tape is torn down, the disassembling jig is inserted between one end of the backlight source connected with the FPC and the display screen body, the disassembling jig is rotated to separate the display screen body from the backlight source, and then the backlight source and the display screen body are recycled.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (2)
1. A method for disassembling and repairing a display screen backlight source is characterized by comprising the following steps:
(1) placing the display screen to be repaired on a molybdenum wire machine, lifting the molybdenum wire of the molybdenum wire machine by using a bamboo stick to enable the molybdenum wire to be aligned between one end, connected with the FPC, of the backlight source of the display screen and the display screen body, then starting the molybdenum wire machine to push the display screen, cutting the part between one end, connected with the FPC, of the backlight source of the display screen and the display screen body by using the molybdenum wire machine, cutting off OC glue between the display screen body and the backlight source, wherein the cutting length is 5 mm;
(2) taking down the display screen subjected to OC glue cutting from the molybdenum wire machine, placing the display screen on a glue dispensing table of a glue dispensing machine, and starting the glue dispensing machine to uniformly coat UV glue on one end of a backlight source of the display screen, which is not connected with an FPC (flexible printed circuit) and the left side and the right side of the display screen by using the glue dispensing machine;
(3) taking down the display screen coated with the UV adhesive from a dispensing table of a dispenser, placing the side, attached to the display screen body, of the backlight source on a workbench downwards, taking out the masking tape, adhering the masking tape to the left side and the right side of the display screen, and placing the display screen on a tray;
(4) the display screen is put into an industrial refrigerator for freezing, the freezing temperature range is-135 ℃ to-145 ℃, and the freezing time range is 35min to 40 min;
(5) the display screen which is to be frozen is taken out of the industrial refrigerator and is disassembled by utilizing the disassembling jig, the masking tape is torn down, the disassembling jig is inserted between one end of the backlight source connected with the FPC and the display screen body, and the disassembling jig is rotated to separate the display screen body from the backlight source.
2. The method for disassembling and repairing the display screen backlight source according to claim 1, wherein: the freezing temperature in the step (4) is-140 ℃, and the freezing time is 40 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351528.2A CN111070151B (en) | 2019-12-24 | 2019-12-24 | Method for disassembling and repairing backlight source of display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911351528.2A CN111070151B (en) | 2019-12-24 | 2019-12-24 | Method for disassembling and repairing backlight source of display screen |
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| CN111070151A CN111070151A (en) | 2020-04-28 |
| CN111070151B true CN111070151B (en) | 2021-10-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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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| JP2005114907A (en) * | 2003-10-06 | 2005-04-28 | Toshiba Matsushita Display Technology Co Ltd | Flat display device and liquid crystal display device |
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| CN205427374U (en) * | 2016-03-17 | 2016-08-03 | 北京京东方显示技术有限公司 | Equipment is disassembled to display module assembly |
| CN106077019A (en) * | 2016-06-12 | 2016-11-09 | 浙江大学 | A kind of waste and old screen based on air cooling and wiring board recovery method and device |
| CN106271380A (en) * | 2016-08-29 | 2017-01-04 | 无锡博光电科技有限公司 | A kind of backlight freezing disassembling method |
| CN106990564A (en) * | 2017-03-29 | 2017-07-28 | 深圳市海瑞思自动化科技有限公司 | A kind of separation method of optical cement |
| 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 |
| CN208051823U (en) * | 2017-12-26 | 2018-11-06 | 苏州桐力光电股份有限公司 | The device for disassembling of full fitting display screen |
| CN110153091A (en) * | 2019-05-16 | 2019-08-23 | 深圳大视野志远科技有限公司 | A kind of touch screen method for cleaning |
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Patent Citations (10)
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| JP2000214528A (en) * | 1998-11-20 | 2000-08-04 | Toshiba Corp | Display device |
| JP2005114907A (en) * | 2003-10-06 | 2005-04-28 | Toshiba Matsushita Display Technology Co Ltd | Flat display device and liquid crystal display device |
| CN103552107A (en) * | 2013-11-05 | 2014-02-05 | 金龙机电（东莞）有限公司 | Disassembling device and disassembling method for touch screen and liquid crystal display screen |
| CN205427374U (en) * | 2016-03-17 | 2016-08-03 | 北京京东方显示技术有限公司 | Equipment is disassembled to display module assembly |
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| 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 |
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| CN111070151A (en) | 2020-04-28 |
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