CN106646983B - A kind of manufacture craft for ultra-narrow display screen frame - Google Patents
A kind of manufacture craft for ultra-narrow display screen frame Download PDFInfo
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- CN106646983B CN106646983B CN201710200478.2A CN201710200478A CN106646983B CN 106646983 B CN106646983 B CN 106646983B CN 201710200478 A CN201710200478 A CN 201710200478A CN 106646983 B CN106646983 B CN 106646983B
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
-
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
Abstract
The invention discloses a kind of manufacture crafts for ultra-narrow display screen frame, specifically include that the attaching and laser deburring of polaroid；Bonding face plasma cleaning；Silver paste printing and solidification；ACF, PFC are attached and bonding；PCB bonding；The encapsulation of UV glue；Backlight assembling.The present invention is big as CF is done by TFT, is gone to the ITO circuit on TFT on its LCD display side seamed edge by conductive silver paste, realizes that LCD display further reduces the size of piece, reduces display interruption, promotes the visual experience of viewer.
Description
Technical field
The present invention relates to a kind of production methods of LCD display, more precisely, being a kind of for ultra-narrow display screen frame
Manufacture craft.
Background technique
Traditional LCD display needs the bindings bit of reserved driver circuit in the production process due to the needs of liquid crystal drive
It sets, traditional way is to do more somewhat larger than upper layer glass by the TFT glass with route, and typically larger than 3 ~ 5mm will need nation
It positions the route set to expose, to reserve the bonding position of driver circuit, and this way necessarily will cause bonding side
Width is greater than non-bonding side, it is difficult to reach ultra-narrow frame and show the requirement reduced to frame.The solution of the present invention uses facade nation
It is fixed, bonding the space occupied is substantially reduced by control ACF thickness, FPC thickness and the thickness control of UV sealing, is reached into one
Step reduces the frame size of display screen, reduces the size of the piece of mosaic screen, reduces interruption, promotes the visual experience of viewer.
Summary of the invention
The present invention reduces the size of the piece of mosaic screen, reduces interruption to further reduce the frame size of display screen,
Provide a kind of manufacture craft for ultra-narrow display screen frame.
To achieve the goals above, a kind of manufacture craft for ultra-narrow display screen frame provided by the invention is specifically wrapped
It includes:
1) polaroid is cut using laser cutting device, the size that the polaroid that will be bonded is cut is beyond display
Shield 2-3mm, polaroid is bonded with display screen then, then polaroid is carried out on the basis of the corner RGB with laser again secondary
Cutting makes its size inside contract 0-0.15mm relative to display screen.The purpose of this process is to reduce big size polaroid cutting precision
The not high influence to frame size.The LCD display top and bottom are glass planar, remaining is side.
2) bonding face plasma cleaning needs bonding face to do plasma cleaning processing, sprays bonding face face plasma cleaning
Head distance is 3-5mm, and glass is with the mobile cleaning completed to bonding face of the speed of 200-300mm/s；The purpose of this process is to remove
The foreign matter for going to bonding face carries out modifying process to bonding face, increases the adhesion strength of subsequent bonding process.
3) silver paste printing and solidification, conductive silver paste are set using bat printing technology print in display screen side, by conductive silver paste with
ITO circuit conducting inside TFT, silver paste solidification use≤80 degree IR are solidified.
4) bonding of ACF attaching and FPC needs bonding area first to carry out ACF and attaches then progress FPC precompressed and this pressure bonding.
Temperature value and pressure value and the dwell time of precompressed and this pressure thermal head are set according to the technical parameter of ACF.First in display screen side
While attaching to ACF, so that ACF and display screen fixed bonding, then FPC is placed on above ACF by prepressing device, and will
Route on FPC is aligned with the side LCD printing silver paste route, and precompressed thermal head pushes, and FPC and ACF are bonded together.Equal institutes
After some complete lifes of FPC precompressed, LCD moves into pressure station, this pressure thermal head pushes, FPC is crimped on silver paste route by ACF
Together, FPC is formally connected with silver paste route by ACF.Complete into bonding.
5) PCB bonding, the display screen described in above-mentioned steps carry out PCB bonding again.
The ACF has certain viscosity as medium, and characteristic is that vertical direction is conductive, and horizontal direction is non-conductive,
After completing bonding, FPC is connected to the TFT layer and PCB of display screen, forms circuit.
6) UV glue encapsulates, and UV dispensing solidification equipment carries out the FPC bonding area edge of LCD display described above
UV point adhesive curing；The purpose of this process is the adhesive strength further strengthened at FPC bonding, does not send out fall in use.
7) backlight assembles, and LCD display is directly glued together by UV with backlight enclosure, applies in backlight enclosure surrounding
It covers width≤1mmUV glue and is solidified, then combine LCD display and backlight.It can by way of UV gluing
To further reduce the size in assembling region, the purpose for further reducing frame is reached.By reducing the design of backlight enclosure edge,
Achieve the purpose that further decrease outline border, realizes the reduction of piece.
The LCD display upper layer is CF layer, and lower layer is TFT layer, intermediate for liquid crystal and liquid crystal drive route, described
The CF layer and four Bian Qiping of TFT layer of LCD display, length and width dimensions are identical, and the display screen top and bottom are glass planar, remaining
The thickness plane of LCD display is side.
The attaching mode of the polaroid is used to be bonded greater than the polaroid of LCD display, then using laser into
The technology mode of the secondary deburring of row makes polaroid inside contract 0~0.15mm of display screen.
The extraction of the LCD display TFT route is drawn using conductive silver paste.
The LCD display conductive silver paste is printed by the way of printing to be set in the side of LCD display.
Solidifying for the LCD display conductive silver paste is solidified using the IR of temperature≤80 degree.
The bonding of the LCD display is carried out in the side of display screen.
The FPC bonding area of the LCD display is packaged using UV glue.
The backlight of the LCD display assembles, using in backlight enclosure surrounding coating width≤1mmUV glue and being consolidated
Change, the technology mode for then combining LCD display and backlight, backlight enclosure is direct by UV glue and LCD display
It bonds together.
A kind of manufacture craft for ultra-narrow display screen frame of the invention has the advantage that avoiding traditional LC D shows
The upper layer and lower layer glass of LCD display is made same size, passed through by influence of the display screen manufacture craft to frame size, the present invention
Conductive silver paste goes to the circuit on TFT on its side seamed edge, then carries out the bonding and UV sealing of driver circuit.Due to this hair
It is bright to use facade bonding, by control ACF thickness, FPC thickness and the thickness control of UV sealing that bonding the space occupied is big
Width reduces, so that frame be further reduced, greatly reduces the occupied space of FPC bonding, boundless to reach display screen
Frame effect realizes that LCD display further reduces the size of piece, reduces display interruption, promotes the visual experience of viewer.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of bonding process for ultra-narrow display screen frame of the invention.
Fig. 2 is a kind of side structure schematic diagram of bonding process for ultra-narrow display screen frame of the invention.
Fig. 3 is the LCD display schematic diagram after being completed.
Wherein, 1. display screens, 2.ACF, 3.FPC, 4.PCB, 5. backlight enclosures, 6. dispensings.
Specific embodiment
The preferred embodiment of the present invention is described in detail in 1-3 with reference to the accompanying drawing, so that advantages of the present invention and spy
Sign can be easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment 1
1) display screen upper layer described in is CF layers, and lower layer is TFT layer, inter-coat liquid crystal conducting medium, required attaching
Polaroid is imprinted in display screen glass.It is cut using edge of the laser cutting device to polaroid, the polarisation that will be bonded
The size that piece is cut exceeds display screen 2mm, and polaroid to be cut is bonded with display screen, then again with laser with the side RGB
Secondary cutting is carried out to polaroid on the basis of angle, keeps the size of polaroid identical as display screen.
The top and bottom of the display screen are LCD display glass planar, remaining is LCD display side.
2) bonding face plasma cleaning needs bonding face to do end surface grinding processing, its finish Ra is made to be less than 0.32um, straight line
Degree and verticality meet display screen requirement, display screen is rotatable on plummer, make bonding face face plasma cleaning spray head away from
From for 3mm, glass is with the mobile cleaning completed to bonding face of the speed of 200mm/s；
3) silver paste printing and solidification, conductive silver paste is set using printing technology print in LCD display side, with electricity inside TFT
Road conducting, silver paste solidification use≤80 degree IR are solidified.The LCD display side is one of side of display screen.
4) attaching and bonding of ACF, FPC；ACF-7160 is taken to be attached, the temperature value for adjusting thermal head is 80 DEG C, pressure
Force value is 1MPa, and thermal head carries out precompressed to the ACF in LCD display side bonding face and attaches 1 ~ 5s, so that ACF and display screen are viscous
Even, 170 DEG C of temperature value of thermal head are adjusted then, pressure value is adjusted to 2MPa and is originally overlayed attached 15s so that the FPC on ACF with show
Display screen attaches completely, completes bonding.The LCD display side is the one side side of display screen or two sides side or three surface sides
Side.
5) PCB bonding, the display screen described in above-mentioned steps carry out PCB bonding again.
The ACF has certain viscosity as medium, and characteristic is that vertical direction is conductive, and horizontal direction is non-conductive,
After completing bonding, FPC is connected to the TFT layer and PCB of display screen, forms circuit.
6) UV glue encapsulates, and UV dispensing solidification equipment carries out UV to LCD display glass planar edge described above
Point adhesive curing.
7) backlight assembles, and LCD display is directly glued together by UV with backlight enclosure, applies in backlight enclosure surrounding
It covers width 1mmUV glue and is solidified, then combine display screen and backlight.
Embodiment 2
1) display screen upper layer described in is CF layers, and lower layer is TFT layer, inter-coat liquid crystal conducting medium, required attaching
Polaroid is imprinted in display screen glass.It is cut using edge of the laser cutting device to polaroid, the polarisation that will be bonded
The size that piece is cut exceeds display screen 2mm, and polaroid to be cut is bonded with display screen, then again with laser with the side RGB
Secondary cutting is carried out to polaroid on the basis of angle, its polaroid is made to inside contract 0.15mm relative to display screen.
The top and bottom of the LCD display are display screen glass plane, remaining is LCD display side.
2) bonding face plasma cleaning needs bonding face to do end surface grinding processing, its finish Ra is made to be less than 0.32um, straight line
Degree and verticality meet display screen requirement, display screen is rotatable on plummer, make bonding face face plasma cleaning spray head away from
From for 4mm, glass is with the mobile cleaning completed to bonding face of the speed of 250mm/s；Complete the cleaning to bonding face.
3) silver paste printing and solidification, conductive silver paste is set using printing technology print in LCD display side, with electricity inside TFT
Road conducting, silver paste solidification use≤80 degree IR are solidified.The LCD display side is the two of them side of display screen.
4) attaching and bonding of ACF, FPC；ACF-7207 is taken to be attached, the temperature value for adjusting thermal head is 80 DEG C, pressure
Force value is 1MPa, and thermal head carries out precompressed to the ACF in LCD display side bonding face and attaches 1 ~ 5s, so that ACF and display screen are viscous
Even, 180 DEG C of temperature value of thermal head are adjusted then, pressure value is adjusted to 3MPa and is originally overlayed attached 20s so that the FPC on ACF with show
Display screen attaches completely, completes bonding.The LCD display side is the one side side of display screen or two sides side or three surface sides
Side.
5) PCB bonding, the display screen described in above-mentioned steps carry out PCB bonding again.
The ACF has certain viscosity as medium, and characteristic is that vertical direction is conductive, and horizontal direction is non-conductive,
After completing bonding, FPC is connected to the TFT layer and PCB of display screen, forms circuit.
6) UV glue encapsulates, and UV dispensing solidification equipment carries out UV to LCD display glass planar edge described above
Point adhesive curing.
7) backlight assembles, and LCD display is directly glued together by UV with backlight enclosure, applies in backlight enclosure surrounding
It covers width 0.9mmUV glue and is solidified, then combine display screen and backlight.
Embodiment 3
1) display screen upper layer described in is CF layers, and lower layer is TFT layer, inter-coat liquid crystal conducting medium, required attaching
Polaroid is imprinted in display screen glass.It is cut using edge of the laser cutting device to polaroid, the polarisation that will be bonded
The size that piece is cut exceeds display screen 3mm, polaroid to be cut is bonded with display screen, polaroid and display screen one end are neat
Flat or opposite display screen inside contracts, and then carries out secondary cutting to polaroid on the basis of the corner RGB with laser again, make its size and
Display screen is identical.
The top and bottom of the LCD display are display screen glass plane, remaining is LCD display side.
2) bonding face plasma cleaning needs bonding face to do end surface grinding processing, its finish Ra is made to be less than 0.32um, straight line
Degree and verticality meet display screen requirement, display screen is rotatable on plummer, make bonding face face plasma cleaning spray head away from
From for 5mm, glass is with the mobile cleaning completed to bonding face of the speed of 300mm/s；
3) silver paste printing and solidification, conductive silver paste is set using printing technology print in LCD display side, with electricity inside TFT
Road conducting, silver paste solidification use≤80 degree IR are solidified.The LCD display side is the one side side or two sides of display screen
Side or three surface side sides.
4) attaching and bonding of ACF, FPC；ACF-7207 is taken to be attached, the temperature value for adjusting thermal head is 80 DEG C, pressure
Force value is 1MPa, and thermal head carries out precompressed to the ACF in LCD display side bonding face and attaches 1 ~ 5s, so that ACF and display screen are viscous
Connect, then adjust 170 DEG C ~ 180 DEG C of temperature value of thermal head, pressure value is adjusted to 3MPa and is originally overlayed attached 15 ~ 20s, so that on ACF
FPC attached completely with display screen, complete bonding.The LCD display side is any three sides of display screen.
5) PCB bonding, the display screen described in above-mentioned steps carry out PCB bonding again.
The ACF has certain viscosity as medium, and characteristic is that vertical direction is conductive, and horizontal direction is non-conductive,
After completing bonding, FPC is connected to the TFT layer and PCB of display screen, forms circuit.
6) UV glue encapsulates, and UV dispensing solidification equipment carries out UV to LCD display glass planar edge described above
Point adhesive curing.
7) backlight assembles, and LCD display is directly glued together by UV with backlight enclosure, applies in backlight enclosure surrounding
It covers width 0.5mmUV glue and is solidified, then combine display screen and backlight.
Above-described embodiment is only presently preferred embodiments of the present invention, and the range of the present invention cannot be limited with this.Of the invention one
Kind has the advantage that for the manufacture craft of ultra-narrow display screen frame avoids traditional LC D manufacture craft to frame size
It influences, the upper layer and lower layer glass of display screen is made same size, the circuit on TFT is gone to it by conductive silver paste by new departure
On the seamed edge of side, the bonding and UV sealing of driver circuit are then carried out.Since the present invention uses facade bonding, by ACF thickness
Degree, FPC thickness and the thickness control of UV sealing substantially reduce bonding the space occupied, so that frame is further reduced, with
Reach display screen Rimless effect, realizes the minimum requirement of mosaic screen piece 1.8MM.New departure is by TFT as CF is done
Greatly, by FPC facade bonding on the side of display screen, the occupied space of FPC bonding is greatly reduced.
Not limited to this, any change or replacement expected without creative work should all be covered in guarantor of the invention
Within the scope of shield.Therefore, protection scope of the present invention should be determined by the scope of protection defined in the claims.
Claims (9)
1. a kind of manufacture craft for ultra-narrow display screen frame characterized by comprising
1) polaroid is cut using laser cutting device, the size that the polaroid that will be bonded is cut exceeds display screen 2-
Polaroid is bonded by 3mm with display screen, is then carried out secondary cutting to polaroid on the basis of the corner RGB with laser again, is made it
Size inside contracts 0~0.15mm relative to display screen；
2) bonding face plasma cleaning needs bonding face to do plasma cleaning processing, makes bonding face face plasma cleaning spray head
Distance is 3-5mm, and glass is with the mobile cleaning completed to bonding face of the speed of 200-300mm/s；
3) silver paste printing and solidification, conductive silver paste is set using bat printing technology print in display screen side, by conductive silver paste and TFT
The ITO circuit in portion is connected, and silver paste solidification use≤80 degree IR is solidified；
4) bonding of ACF attaching and FPC needs bonding area first to carry out ACF and attaches then progress FPC precompressed and this pressure bonding, according to
The technical parameter setting precompressed of ACF and temperature value and pressure value and the dwell time of this pressure thermal head, first in display screen side pair
ACF is attached, so that ACF and display screen fixed bonding, then FPC is placed on above ACF by prepressing device, and will be on FPC
Route and LCD display side printing silver paste route be aligned, precompressed thermal head pushes, FPC and ACF are bonded together, to
All FPC precompressed are completed, and LCD display moves into pressure station, this pressure thermal head pushes, and FPC and silver paste route are passed through ACF
It is crimped together, FPC is formally connected with silver paste route by ACF, and the bonding of FPC is completed；
5) PCB bonding, the display screen described in above-mentioned steps carry out PCB bonding again；
6) UV glue encapsulates, and it is solid that UV dispensing solidification equipment carries out UV dispensing to the FPC bonding area edge of the LCD display
Change；
7) backlight assembles, and LCD display is directly glued together by UV with backlight enclosure, coats in backlight enclosure surrounding wide
Degree≤1mmUV glue is simultaneously solidified, and then combines above-mentioned LCD display with backlight.
2. a kind of manufacture craft for ultra-narrow display screen frame according to claim 1, which is characterized in that described
LCD display upper layer is CF layers, and lower layer is TFT layer, and centre is liquid crystal and liquid crystal drive route, the CF layer of the LCD display
With four Bian Qiping of TFT layer, length and width dimensions are identical, and the display screen top and bottom are glass planar, and the thickness of remaining LCD display is flat
Face is side.
3. a kind of manufacture craft for ultra-narrow display screen frame according to claim 1, which is characterized in that its polaroid
Attaching mode use and be bonded greater than the polaroid of LCD display, the technique side that secondary deburring is then carried out using laser
Formula makes polaroid inside contract 0~0.15mm of display screen.
4. a kind of manufacture craft for ultra-narrow display screen frame according to claim 1, which is characterized in that the LCD
The extraction of display screen TFT route is drawn using conductive silver paste.
5. a kind of manufacture craft for ultra-narrow display screen frame according to claim 1, which is characterized in that the LCD
Display screen conductive silver paste is printed by the way of printing to be set in the side of LCD display.
6. a kind of manufacture craft for ultra-narrow display screen frame according to claim 1, which is characterized in that the LCD
Solidifying for display screen conductive silver paste is solidified using the IR of temperature≤80 degree.
7. a kind of manufacture craft for ultra-narrow display screen frame according to claim 1, which is characterized in that the LCD
The bonding of display screen is carried out in the side of LCD display.
8. a kind of manufacture craft for ultra-narrow display screen frame according to claim 1, which is characterized in that the LCD
The FPC bonding area of display screen is packaged using UV glue.
9. a kind of manufacture craft for ultra-narrow display screen frame according to claim 1, which is characterized in that the LCD
The backlight of display screen assembles, using in backlight enclosure surrounding coating width≤1mmUV glue and being solidified, then by display screen with
Backlight is combined, and backlight enclosure is directly bonded together by UV glue with LCD display.
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| CN201710200478.2A CN106646983B (en) | 2017-03-30 | 2017-03-30 | A kind of manufacture craft for ultra-narrow display screen frame |
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| CN109817100B (en) * | 2019-03-15 | 2022-02-11 | 京东方科技集团股份有限公司 | Narrow-frame and ultra-narrow-frame display device, display panel and manufacturing method thereof |
| CN111025692B (en) * | 2019-10-10 | 2022-06-03 | 信利半导体有限公司 | High-efficiency LCD manufacturing method |
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| CN114645890A (en) * | 2020-12-18 | 2022-06-21 | 北京小米移动软件有限公司 | Middle frame and display screen attaching method and device, attaching system and storage medium |
| CN112859399B (en) * | 2021-02-02 | 2023-05-05 | 河源思比电子有限公司 | Manufacturing method and device of TFT liquid crystal display module and storage medium |
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