CN114035352A - Liquid crystal screen thinning method and liquid crystal screen prepared by same - Google Patents
Liquid crystal screen thinning method and liquid crystal screen prepared by same Download PDFInfo
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- CN114035352A CN114035352A CN202111162614.6A CN202111162614A CN114035352A CN 114035352 A CN114035352 A CN 114035352A CN 202111162614 A CN202111162614 A CN 202111162614A CN 114035352 A CN114035352 A CN 114035352A
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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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Abstract
The invention discloses a liquid crystal screen thinning method and a liquid crystal screen prepared by the same, wherein a protective film layer is arranged on a liquid crystal screen driving circuit and a flexible circuit, so that the liquid crystal screen can be thinned without removing the liquid crystal screen driving circuit and the flexible circuit, namely, the invention ensures that the driving circuit and the flexible circuit are not damaged in the thinning acid washing process through the protective film layer, thereby greatly improving the yield of the liquid crystal screen on the basis of saving thinning operation steps.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a liquid crystal screen thinning method and a liquid crystal screen prepared by the same.
Background
With the development of display technology, curved screens gradually enter the market, and large-size liquid crystal screens cannot be bent with large curvature due to the limitation of technology and process. The liquid crystal screen is thinned in an acid washing thinning mode, and large-curvature bending can be realized after the stress of the liquid crystal screen glass is removed. However, in the process of pickling the liquid crystal display, the liquid crystal display driving circuit and the flexible circuit are corroded and damaged, so that at present, the circuit part is usually removed first, and then is bound again after being thinned, and the liquid crystal display fails due to poor contact between the liquid crystal display and the circuit part caused by the operation method at a certain probability.
Disclosure of Invention
The invention provides a liquid crystal screen thinning method and a liquid crystal screen prepared by the same, and aims to solve the problem that in the prior art, the liquid crystal screen thinning treatment is easy to cause damage to a liquid crystal screen circuit.
In a first aspect, the present invention provides a method for thinning a liquid crystal display, including: preprocessing a liquid crystal screen to be thinned; pasting release films on the driving circuit board and the flexible circuit board on the liquid crystal display screen to be thinned, pasting an acid-resistant adhesive tape on the release films, and coating UV (ultraviolet) glue on the edges of the acid-resistant adhesive tape to protect the driving circuit board and the flexible circuit board; and thinning the thinned area on the liquid crystal screen to be thinned, and removing the acid-resistant adhesive tape and the release film after thinning to obtain the thinned liquid crystal screen.
Optionally, the preprocessing is performed on the liquid crystal screen to be thinned, and the preprocessing includes: and removing the polaroid on the liquid crystal screen to be thinned, and carrying out surface cleaning treatment on the liquid crystal screen to be thinned.
It is optionally right treat that drive circuit board and flexible circuit board on the attenuate LCD screen paste from type membrane, include: and pasting release films on two sides of the drive circuit board and the flexible circuit board on the liquid crystal screen to be thinned.
Optionally, before thinning the thinned area on the liquid crystal display to be thinned, the method includes: and pasting the beautifying glue on the periphery of the thinning area.
Optionally, after the cosmetic glue is pasted on the periphery of the thinning region, before the thinning processing is performed on the thinning region, the method further includes: and carrying out surface cleaning treatment on the thinned area.
Optionally, the release film is one or more, and the shape of the release film is set according to the shapes of the driving circuit board and the flexible circuit board.
Optionally coating UV glue on the edges of the acid-resistant adhesive tape, wherein the UV glue comprises:
and coating UV (ultraviolet) glue on all edges of the acid-resistant adhesive tape, which are in contact with the liquid crystal screen to be thinned.
Optionally coating UV glue on the edges of the acid-resistant adhesive tape, wherein the UV glue comprises: coating UV (ultraviolet) glue on the edges of the acid-resistant adhesive tape, and irradiating the UV glue through an ultraviolet lamp to cure the UV glue.
In a second aspect, the invention provides a liquid crystal screen, which is prepared by any one of the liquid crystal screen thinning methods.
In a third aspect, the present invention provides a computer-readable storage medium, which stores a signal-mapped computer program, and when the computer program is executed by at least one processor, the computer program implements any one of the above-mentioned methods for thinning a liquid crystal panel.
The invention has the following beneficial effects:
the protective film layer is arranged on the liquid crystal screen driving circuit and the flexible circuit, so that the liquid crystal screen can be thinned without removing the liquid crystal screen driving circuit and the flexible circuit, namely the driving circuit and the flexible circuit are not damaged in the thinning acid washing process through the protective film layer, the yield of the liquid crystal screen is greatly improved on the basis of saving thinning operation steps, and the production cost is reduced.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flow chart of a liquid crystal screen thinning method according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a drive circuit board and a flexible circuit board after protection processing according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart of another liquid crystal panel thinning method according to the first embodiment of the present invention.
Detailed Description
The embodiment of the invention aims at the problems of the prior art that the circuit part on the liquid crystal screen is firstly detached, thinned and then bound again to cause the thinning and the fragmentation of the liquid crystal screen, the operation process is complicated and the like. The present invention will be described in further detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The first embodiment of the invention provides a method for thinning a liquid crystal display, and with reference to fig. 1, the method comprises the following steps:
s101, preprocessing a liquid crystal display to be thinned;
it should be noted that the liquid crystal screen to be thinned according to the embodiment of the present invention is a large curved screen, such as various advertisement display screens of televisions and the like. That is, the method according to the embodiment of the present invention is a thinning process performed on a curved panel with a circuit portion.
In specific implementation, the embodiment of the invention removes the polaroid on the liquid crystal screen to be thinned, and then performs surface cleaning treatment on the liquid crystal screen to be thinned so as to ensure the surface cleanliness of the liquid crystal screen and avoid the influence on the effect after the thinning treatment due to the existence of impurities and the like.
S102, pasting a release film on the drive circuit board and the flexible circuit board on the liquid crystal display screen to be thinned, pasting an acid-resistant adhesive tape on the release film, and coating UV (ultraviolet) glue on the edge of the acid-resistant adhesive tape to protect the drive circuit board and the flexible circuit board;
it should be noted that the present invention is described only by taking the driving circuit board and the flexible circuit board as examples, and in specific implementation, a person skilled in the art may also adopt similar protection measures for other circuits according to the concept of the present invention to avoid damage to the liquid crystal display due to circuit disassembly and assembly, avoid complicated steps of circuit disassembly and assembly by an operator, save the step of thinning processing, and further reduce the thinning cost.
S103, thinning the thinned area on the liquid crystal screen to be thinned, and removing the acid-resistant adhesive tape and the release film after thinning to obtain the thinned liquid crystal screen;
and during specific thinning treatment, pasting masking tape on the edge of one side of the thinning area adjacent to the acid-resistant adhesive tape so as to avoid the pollution of UV (ultraviolet) glue on the thinning area.
Certainly can also avoid the influence to the other positions of display screen in the attenuate processing procedure, also better protect other positions of display screen promptly, and the regional periphery of attenuate all pastes beautiful line glue to carry out surface cleaning to the attenuate region and handle, then right the attenuate region carries out the attenuate processing.
In addition, it should be noted that the liquid crystal screen prepared by the embodiment of the invention is finally used for a curved screen with large curvature, and practice proves that the curved screen prepared by the method of the embodiment of the invention greatly reduces the possibility of circuit damage on the screen, improves the yield of the liquid crystal screen to a great extent, reduces the generation cost of the liquid crystal screen and greatly improves the user experience.
The embodiment of the present invention is to perform thinning by using a conventional method, and since thinning is a relatively common technique at present, the embodiment of the present invention will not be explained and illustrated in detail.
In specific implementation, the release film in the embodiment of the invention is one or more, and the shape of the release film is set according to the shapes of the driving circuit board and the flexible circuit board.
That is to say, in the embodiment of the present invention, a whole release film may be disposed to cover all the driving circuit boards and the flexible circuit boards, or a plurality of small release films may be disposed to cover each circuit board for circuit boards in different blocks.
When concrete implementation, after carrying out protection processing to the circuit region, before carrying out the attenuate processing to the LCD screen the peripheral of attenuate region is pasted beautiful line and is glued, guarantees that UV point gum machine is on glue spills over to beautiful line sticky tape at some in-process glue, gets rid of beautiful line sticky tape after the point is glued and is accomplished, guarantees that UV glues and can not shelter from waiting to attenuate the region.
As shown in fig. 2, in the embodiment of the present invention, a release film is attached to a driving circuit board and a flexible circuit board, then an acid-resistant adhesive tape is integrally attached to the release film, that is, the release film is integrally covered by the acid-resistant adhesive tape, a UV adhesive is coated on the periphery of the acid-resistant adhesive tape (or a UV adhesive is not coated on a side of a circuit portion which is not in contact with a liquid crystal panel at all to save operation and reduce cost), and the UV adhesive is cured by ultraviolet irradiation, so that the circuit portion is protected. And thinning the preset thinning area on the liquid crystal display screen on the basis of effectively protecting the circuit part.
Generally speaking, the invention realizes the protection of the release film well adhered to the liquid crystal screen and the glass edge of the liquid crystal screen by using the acid-resistant adhesive tape, the UV adhesive is coated on the edge of the acid-resistant adhesive tape, and the UV adhesive is irradiated by an ultraviolet lamp to be cured so as to prevent the acid-resistant adhesive tape from warping.
The embodiment of the invention provides a method for protecting thinning of a liquid crystal display, which comprises the following steps: removing the front and back polaroids from the liquid crystal screen to be thinned; sticking a release film to protect a drive circuit board and a flexible circuit of the liquid crystal display to be thinned; sticking an acid-resistant adhesive tape to the edge of the release film and the edge of the liquid crystal glass to be thinned; and carrying out UV glue protection on the pasting position of the acid-resistant film and the liquid crystal screen, and after the UV glue is cured by a UV lamp, thinning the processed liquid crystal screen. The liquid crystal screen thinning protection method provided by the invention can protect the liquid crystal screen driving circuit and the flexible circuit without removing the liquid crystal screen driving circuit and the flexible circuit, and ensures that the driving circuit and the flexible circuit are not damaged in the thinning acid washing process.
The method according to an embodiment of the invention will be explained and illustrated in detail below with reference to fig. 3:
as shown in fig. 3, an embodiment of the present invention provides a method for protecting a thinned liquid crystal display, where the method includes:
s301, removing the polarizer of the liquid crystal screen to be thinned;
the polaroids on the front side and the back side of the liquid crystal display screen need to be removed, the residual glue is cleaned, and the surface of the glass is ensured to be clean;
s302, pasting a release film on a drive circuit board and a flexible circuit board of the liquid crystal display to be thinned for protection;
the release films are adhered to the front and back surfaces of the liquid crystal display driving circuit board and the flexible circuit board, so that the circuit board is protected from being directly contacted with the acid-resistant adhesive tape, and the circuit board is not damaged when the release films are placed for removing the adhesive;
s303, pasting an acid-resistant adhesive tape on the release film and the glass edge of the liquid crystal display;
sticking the acid-resistant adhesive tape on the front and back surfaces of the release film and the liquid crystal glass;
s304, pasting a masking tape on the glass of the liquid crystal screen to determine a thinning area;
pasting a masking tape on the glass of the liquid crystal screen, ensuring that glue of the UV dispenser overflows onto the masking tape in the dispensing process, removing the masking tape after dispensing is finished, and ensuring that the UV glue does not shield an area to be thinned;
s305, protecting the joint of the acid-resistant adhesive tape and the liquid crystal screen glass by using UV glue, wherein the area of the shaded part in the figure 2 is the UV glue.
And irradiating the UV glue at a preset position by using a UV lamp to cure the UV glue.
The invention can carry out acid washing thinning on the liquid crystal screen under the condition of not dismounting the liquid crystal screen driving circuit board and the flexible circuit, protect the liquid crystal screen driving circuit board and the flexible circuit from being corroded by acid liquid, and carry out protection processing on the circuit part on the liquid crystal screen to be thinned, thereby avoiding the problem that the liquid crystal screen is damaged by dismounting the circuit in the thinning processing process and improving the yield of the thinning processing.
The second embodiment of the invention provides a liquid crystal screen, which is prepared by adopting any one of the liquid crystal screen thinning methods.
The relevant content of the embodiments of the present invention can be understood by referring to the first embodiment of the present invention, and will not be discussed in detail herein.
A third embodiment of the present invention provides a computer-readable storage medium storing a signal-mapped computer program, which when executed by at least one processor, implements the liquid crystal panel thinning method according to any one of the first embodiments of the present invention.
The relevant content of the embodiments of the present invention can be understood by referring to the first embodiment of the present invention, and will not be discussed in detail herein.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.
Claims (10)
1. A method for thinning a liquid crystal display is characterized by comprising the following steps:
preprocessing a liquid crystal screen to be thinned;
pasting release films on the driving circuit board and the flexible circuit board on the liquid crystal display screen to be thinned, pasting an acid-resistant adhesive tape on the release films, and coating UV (ultraviolet) glue on the edges of the acid-resistant adhesive tape to protect the driving circuit board and the flexible circuit board;
and thinning the thinned area on the liquid crystal screen to be thinned, and removing the acid-resistant adhesive tape and the release film after thinning to obtain the thinned liquid crystal screen.
2. The method according to claim 1, wherein the preprocessing of the liquid crystal screen to be thinned comprises:
and removing the polaroid on the liquid crystal screen to be thinned, and carrying out surface cleaning treatment on the liquid crystal screen to be thinned.
3. The method of claim 1, wherein attaching a release film to the driving circuit board and the flexible circuit board on the liquid crystal display to be thinned comprises:
and pasting release films on two sides of the drive circuit board and the flexible circuit board on the liquid crystal screen to be thinned.
4. The method according to claim 1, wherein before the thinning treatment is performed on the thinned area on the liquid crystal screen to be thinned, the method comprises the following steps:
and pasting the beautifying glue on the periphery of the thinning area.
5. The method according to any one of claims 1 to 4, wherein after the masking tape is pasted on the periphery of the thinned region and before the thinned region is thinned, the method further comprises:
and carrying out surface cleaning treatment on the thinned area.
6. The method according to any one of claims 1 to 4,
the release film is one or more, and the shape of the release film is set according to the shapes of the drive circuit board and the flexible circuit board.
7. The method according to any one of claims 1 to 4, wherein the coating of UV glue on the edges of the acid-resistant tape comprises:
and coating UV (ultraviolet) glue on all edges of the acid-resistant adhesive tape, which are in contact with the liquid crystal screen to be thinned.
8. The method according to any one of claims 1 to 4, wherein the coating of UV glue on the edges of the acid-resistant tape comprises:
coating UV (ultraviolet) glue on the edges of the acid-resistant adhesive tape, and irradiating the UV glue through an ultraviolet lamp to cure the UV glue.
9. A liquid crystal screen is characterized in that the liquid crystal screen is prepared by the liquid crystal screen thinning method of any one of claims 1 to 6.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a signal-mapped computer program which, when executed by at least one processor, implements the liquid crystal panel thinning method according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111162614.6A CN114035352A (en) | 2021-09-30 | 2021-09-30 | Liquid crystal screen thinning method and liquid crystal screen prepared by same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111162614.6A CN114035352A (en) | 2021-09-30 | 2021-09-30 | Liquid crystal screen thinning method and liquid crystal screen prepared by same |
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| CN114035352A true CN114035352A (en) | 2022-02-11 |
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| CN107244811A (en) * | 2017-06-30 | 2017-10-13 | 安徽新创智能科技有限公司 | The thining method and device of a kind of liquid-crystalline glasses |
| CN207256987U (en) * | 2017-10-12 | 2018-04-20 | 厦门市驰晟胶带有限公司 | A kind of antiacid film |
| CN112897889A (en) * | 2021-01-29 | 2021-06-04 | 江西沃格光电股份有限公司 | Glass single-side film-covering thinning method |
| WO2021136487A1 (en) * | 2020-01-02 | 2021-07-08 | 京东方科技集团股份有限公司 | Display module, display panel thinning method, display panel, and display device |
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2021
- 2021-09-30 CN CN202111162614.6A patent/CN114035352A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921554A (en) * | 2010-09-20 | 2010-12-22 | 高佳太阳能股份有限公司 | Guide bar viscose locating adhesive tape |
| CN106816096A (en) * | 2017-04-14 | 2017-06-09 | 京东方科技集团股份有限公司 | The thining method of substrate and the thining method of display panel |
| CN107244811A (en) * | 2017-06-30 | 2017-10-13 | 安徽新创智能科技有限公司 | The thining method and device of a kind of liquid-crystalline glasses |
| CN207256987U (en) * | 2017-10-12 | 2018-04-20 | 厦门市驰晟胶带有限公司 | A kind of antiacid film |
| WO2021136487A1 (en) * | 2020-01-02 | 2021-07-08 | 京东方科技集团股份有限公司 | Display module, display panel thinning method, display panel, and display device |
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