CN105589241B - Curved backboard and manufacturing method thereof - Google Patents
Curved backboard and manufacturing method thereof Download PDFInfo
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- CN105589241B CN105589241B CN201610108070.8A CN201610108070A CN105589241B CN 105589241 B CN105589241 B CN 105589241B CN 201610108070 A CN201610108070 A CN 201610108070A CN 105589241 B CN105589241 B CN 105589241B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000000704 physical effect Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 21
- 238000005452 bending Methods 0.000 claims description 19
- 230000009977 dual effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 230000007935 neutral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laminated Bodies (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a curved back plate and a manufacturing method thereof, wherein the manufacturing method comprises the following steps: providing a space having a first temperature; providing a first film layer and a base layer, and combining the first film layer and the base layer in the space to form a stacked film layer; adjusting the temperature of the space from a first temperature to a second temperature; the physical properties of the first film layer and the base layer are different, so that the stacked film layer has a curvature radius and is bent along a curvature central axis.
Description
Technical field
The present invention relates to a kind of backboard, the display module of espespecially a kind of curved backboard and the curved backboard of application.
Background technique
As LCD technology is constantly promoted, liquid crystal display panel has widely been used in flat-surface television, notes
On type computer, mobile phone and all types of consumer electrical products.Known liquid crystal display panel be by an active array substrate with
And one one liquid crystal material of sandwiched between colored optical filtering substrates be formed by two-d display panel.In addition, in order to further be promoted
The viewing effect and telepresenc of viewer, presently relevant industry develop flexible displays also to reach this effect.Curved-surface display
Device is in order to maintain curvature, and way is to allow backboard in a manner of sheet-metal forming at present, curvature required for reaching, but because different
Material subdue curve characteristic variations are not small and backboard needs to beat the mode of rib by punching press to shape to generate curvature, but
This two factor all will cause local curvature and be difficult to control, and the bending stress that will receive remaining originally influences and backboard is caused to generate
Non-essential bending deformation oppresses display panel there is a phenomenon where light leakage instead, this light leakage can be especially bright when showing dark-state
It is aobvious, there is very serious negative effect to the display quality of Curved LCD.And work as module thinning, flexible displays knot can be made
Structure intensity is insufficient.Therefore, how effectively to solve the above problems, it is real to belong to one of current important research and development project, also become current phase
Pass field needs improved target.
Summary of the invention
The present invention provides a kind of method for making curved backboard, to form the curved backboard for having and stablizing curvature.
One embodiment of the invention proposes that a kind of method for making curved backboard includes: to provide a sky of the first temperature of tool
Between；One first film layer and a base are provided, and is combined in this space and forms a stacking film layer；And adjust the temperature in this space by
First temperature is to second temperature；Wherein the first film layer is different from the physical property of base, so that the stacking film layer has a song
Rate radius, and along a center of curvature bending shaft.
One embodiment of the invention proposes that a kind of method for making curved backboard further includes: adjusting the temperature in this space by
After one temperature to second temperature, one second film layer is provided, is stacked in one side of the base with respect to first film layer, to be formed
Stack film layer；And replying the temperature in this space is the first temperature；Wherein the second film layer is identical as the physical property of the first film layer.
According to curved backboard disclosed by one embodiment of aforementioned present invention, comprising: one stacks film layer, this stacking film layer includes
One first film layer；One base has at least two ribs and is alternatively arranged in the first film layer；One second film layer, is stacked at base
The one side of opposite first film layer of layer；Film layer is wherein stacked along a center of curvature bending shaft.
One embodiment of the invention proposes that a kind of method for making curved backboard includes: to provide a sky of the first temperature of tool
Between；One first film layer and a base are provided, and is combined in this space and forms a stacking film layer；And adjust the temperature in this space by
First temperature is to second temperature；Wherein the first film layer is different from the physical property of base, so that stacking film layer has one first song
Rate radius and a second curvature radius, and film layer is stacked simultaneously along a first curvature central axis and a torsion center bending shaft.
One embodiment of the invention proposes that a kind of method for making curved backboard further includes: adjusting the temperature in this space by
After one temperature to second temperature, one second film layer is provided, is stacked in one side of the base with respect to first film layer, to be formed
Stack film layer；And replying the temperature in this space is the first temperature；Wherein the second film layer is identical as the physical property of the first film layer.
According to curved backboard disclosed by one embodiment of aforementioned present invention, comprising: one stacks film layer, this stacking film layer includes
One first film layer；One base has at least two ribs and is alternatively arranged in the first film layer；One second film layer, is stacked at base
The one side of opposite first film layer；Film layer is wherein stacked simultaneously along a first curvature central axis and a torsion center bending shaft.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Figure 1A to Fig. 1 C is painted the production method of the curved backboard of one embodiment of the invention in the process of different phase respectively
Schematic diagram.
Fig. 2A to Fig. 2 B is painted the production method of the curved backboard of another embodiment of the present invention in the stream of different phase respectively
Journey schematic diagram.
Fig. 3 A to Fig. 3 B is painted the production method of the curved backboard of another embodiment of the present invention in the stream of different phase respectively
Journey schematic diagram.
Fig. 4 A and Fig. 4 B be painted respectively the curved backboard of one embodiment of the invention by a temperature difference generate resultant force moment of flexure with it is pure
The schematic diagram of bending resistance square.
Fig. 5 A to Fig. 5 C is painted the production method of the curved backboard of another embodiment of the present invention in the stream of different phase respectively
Journey schematic diagram.
Wherein, appended drawing reference
1,2 curved backboard
10 spaces
100,100 ' film layer is stacked
101 first film layers
102 bases
103 second film layers
111,211,212 rib
112 convex blocks
L long side
W short side
The first side l'
The second side w'
t1、t2、t3Thickness
α1、α2Thermal expansion coefficient
σ1、σ2Section stress
DT, dT ' temperature difference
R, R1, R2 radius of curvature
RA, RA1, RA2 center of curvature axis
M resultant force moment of flexure
The pure bending resistance square of M '
The section S
The final deformation length of L
X position of neutral axis
Specific embodiment
Technical solution of the present invention is described in detail in the following with reference to the drawings and specific embodiments, to be further understood that
The purpose of the present invention, scheme and effect, but it is not intended as the limitation of scope of the appended claims of the present invention.
Since conventional backing plate is in a manner of sheet-metal forming, curvature required for reaching, but because a different materials subdue song
The characteristic variations of line are not small and backboard needs to beat the mode of rib by punching press to shape to generate curvature, but this two factor is all
It will cause local curvature to be difficult to control, and the bending stress that will receive remaining originally influences, and it is non-essential to cause backboard to generate
Bending deformation causes backboard to be unable to reach target curvature.Still further, the backboard of deformation is oppressed display panel and is leaked
The phenomenon of light.
In view of this, one embodiment of the present invention provides a kind of manufacturing method of curved backboard, backboard can pass through difference
The combination of the film layer of physical property, and give a temperature difference, then again recovery temperature and form extremely low curved of a curvature variation
Backboard.Through such manufacturing method, it can be precisely controlled part and overall curvature, lift structure intensity, and be not required to the mould of forming
Tool, can reduce production cost.
Preparation method described below by first to curved backboard of the invention explains.Please refer to Figure 1A to Fig. 1 C, Figure 1A
It is painted the production method of the curved backboard of one embodiment of the invention respectively in the flow diagram of different phase to Fig. 1 C.
Figure 1A is please referred to, the first film layer 101 used in this production method is provided first and is illustrated with the three-dimensional of base 102
First film layer 101 is combined formation to stack film layer 100, makes stacked film by figure with base 102 in the space 10 for having the first temperature T1
The temperature of layer 100 is the first temperature T1.First film layer 101 used in it is different from the physical property of both bases 102.In detail
For, the space with the first temperature T1 can be with the environment such as laboratory, workshop or temperature-controlling chamber etc. that can monitor temperature,
It is also possible to that heater is arranged on carrying platform or is electrically connected temperature regulating device, so that the temperature for stacking film layer 100 is first
Temperature T1.
Figure 1B is please referred to, the temperature of adjustment space 10 changes from the first temperature T1 to second temperature T2 at this time.Due to first
Film layer 101 is different from the thermal expansion coefficient of base 102, causes the thermal expansion amount of the two different and pulls mutually, so that the first film
Layer 101 is formed by with base 102 stacks film layer 100 with a radius of curvature R and along center of curvature axis RA bending.Equally
Ground, the first film layer 101 can also determine to stack 100 radius of curvature of film layer with physical properties such as the young's modulus of base 102 and thickness
R.In one embodiment of this invention, thermal expansion system of the thermal expansion coefficient of the base 102 of selection at least more than the first film layer 101
Several one times, and twice of the thickness with a thickness of the first film layer 101 of base 102, in this way, which base 102 can oppress first
Film layer 101 and make stack film layer 100 along center of curvature axis RA towards the first film layer 101 direction be bent.
Then, it please refers to Fig. 1 C and provides second after the temperature of adjustment space 10 is by the first temperature T1 to second temperature T2
Film layer 103 is stacked at base 102 with respect in the one side of the first film layer 101.Specifically, the second film layer 103 and the first film layer 101
It is located at the opposite sides of base 102, and forms the sandwich of layers knot with second the first film layer of film layer 103- base 102- 101
The stacking film layer 100 ' of structure.There is radius of curvature R due to base 102 and be bent along center of curvature axis RA, preferable second film layer 103
It is attached in base 102 along the curved surface that base 102 has radius of curvature R.The temperature for replying this space 10 later is the first temperature
T1, that is to say, that adjust the stacking film layer 100 ' of script temperature second temperature T2 to the temperature of the first temperature T1.At this moment
Stacking film layer 100 ' and having formed tool radius of curvature is R and along the curved curved backboard 1 of center of curvature axis RA.
Wherein the second film layer 103 is identical as the physical property of the first film layer 101, and physical property includes the coefficient of expansion, Young
Coefficient and thickness, in the embodiment of the present invention, the first film layer 101 and the second film layer 103 select identical material.Base at this time
One times of thermal expansion coefficient of 102 thermal expansion coefficient at least more than the first film layer 101 or the second film layer 103.In addition, the first film
Layer 101 has thickness t1, base 102 is with thickness t2, the second film layer 103 is with thickness t3, the thickness ratio of these film layers is t1:
t2: t3=1:2:1.
In addition, the making step for stacking film layer 100 includes, referring again to Figure 1A, base 102 includes multiple ribs 111, will
These ribs 111 are alternatively arranged on the first film layer 101.These ribs 111 have at regular intervals each other, and make a reservation in parallel curved
Bent center of curvature axis RA arrangement, as shown in Figure 1B.The unlimited modes such as rib 111 can be bonded, screw locking are set to first
Film layer 101.The long side l of parallel first film layer 101 of each 111 extending direction of rib, is arranged in the first film layer 101.
It similarly, can be along Parallel Curvature central axis RA when center of curvature axis RA is vertical with 101 short side w of the first film layer
Direction rib 111 is arranged on the first film layer 101, wherein parallel first film layer of 111 extending direction of each rib
101 short side w.
It is noted that the quantity of rib 111 is the more, and is uniformly arranged on the first film layer 101, film layer 100 is stacked
Bending effect is better, and the curved surface of formation is more smooth.As illustrated in figures 1A and ib, rib 111 is respectively along the long side of the first film layer 101
L setting, and be set at 101 center of the first film layer.However in another embodiment of the present invention, as shown in Figure 2 A, base 102
Comprising two ribs 111, two ribs 111 are only arranged in a pair of of long side l of neighbouring first film layer 101.
The temperature of adjustment space 10 changes from the first temperature T1 to second temperature T2 to be made to stack film layer 100 as shown in Figure 2 B
It is bent with a radius of curvature R and along a center of curvature axis RA.Similarly, when center of curvature axis RA essence and the first film layer 101
Short side w it is vertical, two ribs 111 can be only arranged along a pair of short edges w of the first film layer 101, and the extending direction of center rib 111 is flat
Row short side w can make to stack film layer 100 with a radius of curvature R and along center of curvature axis RA bending.
In another embodiment of the present invention, A, base include multiple convex blocks 112 referring to figure 3., and convex block 112 is arranged at intervals at
In first film layer 101, the long side l of parallel first film layer 101 of the extending direction of these convex blocks 112.The temperature of adjustment space 10 from
First temperature T1, which changes to second temperature T2, makes to stack film layer 100 with a radius of curvature R and along a curvature as shown in Figure 3B
Central axis RA bending.And these convex blocks 112 are arranged along the direction Parallel Curvature central axis RA.Similarly, of the invention
Other embodiments, center of curvature axis RA essence is vertical with 101 short side of the first film layer, parallel first film layer of each convex block extending direction
101 short side w and along the Parallel Curvature direction central axis RA arrange.
In addition, the present invention can be by physical property (such as the thermal expansion coefficient, Young system of base 102 and the first film layer 101
Several and thickness) difference, estimate position of neutral axis when the pure bending resistance square that the desired radius of curvature of curved backboard 1 need to generate,
And find out whereby be supplied to stack film layer 100 needed for temperature difference.For example, referring to Fig. 4 A and Fig. 4 B, stacked film
The thermal expansion coefficient of base 102 and the first film layer 101 is respectively α in layer 1001、α2(unit: ppm), due to the thermal expansion of the two
Coefficient is different, can to stack film layer 100 when undergoing temperature difference dT caused by the first temperature T1 to second temperature T2, because two
Material heat expansion amount is different and pulls mutually, and must meet resultant force on two material section S is zero, that is, meets relational expression (1).
σ1t1=σ2t2 (1)。
Wherein, σ1、σ2The first film layer 101 is respectively represented with base 102 in the section stress (unit: MPa) of section S, t1、t2
The thickness of the first film layer 101 and base 102 is respectively represented, furthermore, relational expression (2) can be obtained using material stress and strain stress relation.
σ1=E1ε1；σ2=E2ε2 (2)。
Wherein, E1、E2Respectively represent the young's modulus (unit: MPa) of the first film layer 101 and base 102, ε1、ε2Generation respectively
The first film layer of table 101 and base 102 strain in the section of section S, furthermore, it can be closed using materials hot deformation and strain stress relation
It is formula (3).
ε1L+ε2L=(α2-α1)dTL (3)。
Wherein, L represents the final deformation length (unit: mm) for stacking film layer 100, and dT represents the first temperature T1 to second temperature
Spend the temperature difference (unit: DEG C) between T2.σ can be derived by relational expression (1)~(3)1With σ2Relationship such as relational expression between dT
(4)、(5)。
Then, first moment is taken using stress pair cross-section S, resultant force moment M such as relational expression (6) caused by can be obtained because of the temperature difference.
Resultant force moment M caused by being derived as relational expression (6) because of temperature difference, referring to figure 4. shown in B, it is necessary to by stacking
Film layer 100 generates equal pure anti-moment M ' it offsets, it can just be satisfied with the condition that the resultant force of section S is all zero with resultant moment.
It needs to estimate shown in the position of neutral axis such as following relationship (7) for stacking film layer 100 at this time, and neutral axis is taken once with stress
Square, can calculate need to generate pure anti-moment M corresponding with resultant force moment M '.
Wherein, X represents position of neutral axis.Can calculate and generate pure anti-moment M ' radius of curvature R of film layer 100 is stacked afterwards
Such as following relationship (8).
It is known that desired radius of curvature R, can derive the first film layer for stacking film layer 100 by (7)~(8) formula
101 can generate the curved backboard of radius of curvature R with different thermalexpansioncoefficientαs, young's modulus E and thickness t with base 102
Required temperature gap dT.The difference (α 2- α 1) and radius of curvature R of the thermal expansion coefficient of first film layer 101 and base 102 at this time
It is inversely proportional, and temperature gap dT is inversely proportional with radius of curvature R.
There is curvature R in the aforementioned stacking film layer 100 made using the temperature difference and be bent towards center of curvature axis RA, in conjunction with the
Two film layers 103, the selection of the thickness, young's modulus and thermal expansion coefficient of the material of the second film layer 103 will to generate the temperature difference again
When dT ', resultant moment caused by pair cross-section S is still zero.In one embodiment of this invention, that is, the first film layer 101 and are selected
The material of two film layers 103 is equal, and thickness is identical, even if there is temperature change dT ' again, will not all generate resultant force moment of flexure, therefore curved back
The knots modification of the curvature of plate 1 is 10% hereinafter, and being formed and stablizing curvature.
For manufacturing radius of curvature as the 65 inch display panels of 5000mm, base 102 with a thickness of 1.2 millimeters, first
The thickness of film layer 101 and the second film layer 103 is all 0.6 millimeter, and the material that base 102 uses is aluminium, the first film layer 101 and second
The material that film layer 103 uses is SECC (Steel-Electrogalvanized-ColdRolled-Coil, cold rolling electroplating zinc steel
Plate).Wherein the young's modulus of SECC is 210GPa, thermal expansion coefficient 11.5ppm.The young's modulus of aluminium is 70GPa, thermal expansion
Coefficient is 23.6ppm.The rib width of base 102 is 14mm, and the width of rib spacing is 21mm, the first film layer 101 and base
Width ratio be 2.5, thus can be derived from the first film layer 101 equivalent young's modulus be E1=525GPa, the Young of base 102
Coefficient is that E2 is 70GPa, substitutes into relational expression (7) and position of neutral axis X=0.4895mm is calculated, then substitute into relational expression (8), can
It learns desired radius of curvature R=5000mm, needs to give dT=20.4 DEG C of 100 temperature difference of film layer of stacking.In this way, it can be learnt that
It gives and stacks dT=20.4 DEG C of 100 temperature difference of film layer, the stacking film layer 100 that can make has radius of curvature 5000mm and towards in curvature
Bent spindle.
A to Fig. 5 C referring to figure 5., Fig. 5 A to Fig. 5 C are painted the production side of the curved backboard of another embodiment of the present invention respectively
Method is in the flow diagram of different phase.Since the embodiment of Fig. 5 A to Fig. 5 C and the embodiment of Figure 1A to Fig. 1 C are similar, wherein
Identical label represent with the same or similar element of the embodiment of Figure 1A to Fig. 1 C, therefore said just for different places
It is bright.
A referring to figure 5. provides the first film layer 101 used in this production method first and illustrates with the three-dimensional of base 102
First film layer 101 is combined formation to stack film layer 100, makes stacked film by figure with base 102 in the space 10 for having the first temperature T1
The temperature of layer 100 is the first temperature T1.Wherein the first film layer 101 is different from the physical property of both bases 102.Specifically,
Space with the first temperature T1 can be with the environment such as laboratory, workshop or temperature-controlling chamber etc. that can monitor temperature, can also
To be that heater is arranged on carrying platform or is electrically connected temperature regulating device, so that the temperature for stacking film layer 100 is the first temperature
T1。
B referring to figure 5., the temperature of adjustment space 10 changes from the first temperature T1 to second temperature T2 at this time.Due to first
Film layer 101 is different from the thermal expansion coefficient of base 102, causes the thermal expansion amount of the two different and pulls mutually, so that the first film
Layer 101, which is formed by stacking film layer 100 with base 102, has first curvature radius R1 and second curvature radius R2, and stacked film
Layer 100 is bent along first curvature central axis RA1 and torsion central axis RA2 simultaneously, and the first curvature central axis RA1 with should
Torsion central axis RA2 is not parallel to each other each other.In one embodiment of this invention, the thermal expansion system of the base 102 of selection
One times of several thermal expansion coefficients at least more than the first film layer 101, and the thickness with a thickness of the first film layer 101 of base 102
Twice, in this way, base 102 can oppress the first film layer 101 and make stack film layer 100 along first curvature central axis RA1 with
The torsion central axis RA2 is bent towards the direction of the first film layer 101.
Then, C provides second after the temperature of adjustment space 10 is by the first temperature T1 to second temperature T2 referring to figure 5.
Film layer 103 is stacked at base 102 with respect in the one side of the first film layer 101, stacks film layer 100 ' to be formed.Specifically, second
Film layer 103 and the first film layer 101 are located at the opposite sides of base 102, and are formed with the second film layer 103- base 102-
The stacking film layer 100 ' of the sandwich of layers structure of first film layer 101.The temperature for replying this space 10 later is the first temperature T1, also
It is to say, adjusts the stacking film layer 100 ' of script temperature second temperature T2 to the temperature of the first temperature T1.Stacked film at this moment
Layer 100 has formed tool radius of curvature for R1, R2 and along the curved curved backboard 2 of the center of curvature axis RA1, RA2.
Wherein the second film layer 103 is identical as the physical property of the first film layer 101, and physical property includes the coefficient of expansion, Young
Coefficient and thickness, in the embodiment of the present invention, the first film layer 101 and the second film layer 103 select identical material.Base at this time
One times of thermal expansion coefficient of 102 thermal expansion coefficient at least more than the first film layer 101 or the second film layer 103.In addition, the first film
Layer 101 has thickness t1, base 102 is with thickness t2, the second film layer 103 is with thickness t3, the thickness ratio of these film layers is t1:
t2: t3=1:2:1.
Wherein, the making step for stacking film layer 100 includes that base 102 includes multiple ribs 211,212, by these ribs
211, it 212 is set on the first film layer 101.Multiple ribs 21 are arranged in the parallel direction first curvature central axis RA1, multiple ribs
Item 212 is as shown in Figure 5 B in parallel torsion central axis RA2 arrangement.Rib 211,212 can be bonded, screw locking etc. is unlimited
Mode is set to the first film layer 101, and rib 211,212 extending directions distinguish the first side l ' of parallel first film layer 101,
Dual side-edge w '.
Wherein, first curvature central axis RA1 is not parallel with torsion central axis RA2 each other.In this way, can shape
At the curved backboard 2 with hyperbolicity, the knots modification of the curvature of curved backboard 2 is 10% hereinafter, and being formed and stablizing curvature.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (16)
1. a kind of method for making curved backboard, which is characterized in that step includes:
One space of the first temperature of tool is provided；
One first film layer and a base are provided, and is combined in the space and forms a stacking film layer；
The temperature in the space is adjusted by the first temperature to second temperature；Wherein,
First film layer is different from the physical property of the base, so that the stacking film layer has a radius of curvature, and along a song
Rate center bending shaft；
After the temperature in the space is adjusted by the first temperature to second temperature, one second film layer is provided, it is opposite to be stacked at the base
In the one side of first film layer, to form the stacking film layer；And
The temperature for replying the space is the first temperature；Wherein,
Second film layer is identical as the physical property of first film layer.
2. making the method for curved backboard as described in claim 1, which is characterized in that in the step of forming the stacking film layer,
The base includes multiple ribs, those ribs, which are alternatively arranged, to be arranged in first film layer, and those ribs are in the parallel curvature
Central axis direction arrangement.
3. making the method for curved backboard as described in claim 1, which is characterized in that in the step of forming the stacking film layer,
The base includes a pair of of rib, which arranges, and the parallel dual side-edge of extending direction.
4. making the method for curved backboard as described in claim 1, which is characterized in that first film layer, the base and this
The physical property of two film layers includes thermal expansion coefficient, young's modulus and thickness.
5. making the method for curved backboard as described in claim 1, which is characterized in that the thickness of second film layer used with
The thickness of first film layer is identical.
6. making the method for curved backboard as described in claim 1, which is characterized in that first film layer and the heat of the base are swollen
The difference of swollen coefficient is inversely proportional with the radius of curvature.
7. making the method for curved backboard as described in claim 1, which is characterized in that first temperature and the second temperature it
Between there is a temperature gap, which is inversely proportional with the radius of curvature.
8. making the method for curved backboard as described in claim 1, which is characterized in that first film layer has thickness t1, the base
Layer has thickness t2, second film layer is with thickness t3, wherein the thickness ratio of those film layers can meet the following conditions:
t1: t2: t3=1:2:1.
9. making the method for curved backboard as described in claim 1, which is characterized in that the thermal expansion coefficient of the base is at least big
In one times of the thermal expansion coefficient of first film layer.
10. a kind of method for making curved backboard, which is characterized in that step includes:
One space of the first temperature of tool is provided；
One first film layer and a base are provided, and is combined in the space and forms a stacking film layer；
The temperature in the space is adjusted by the first temperature to second temperature；Wherein
First film layer is different from the physical property of the base, so that the stacking film layer has a first curvature radius and one the
Two radius of curvature, and the stacking film layer is simultaneously along a first curvature central axis and a torsion center bending shaft；
After the temperature in the space is adjusted by the first temperature to second temperature, one second film layer is provided, it is opposite to be stacked at the base
In the one side of first film layer, to form the stacking film layer；And
The temperature for replying the space is the first temperature；Wherein
Second film layer is identical as the physical property of first film layer.
11. making the method for curved backboard as claimed in claim 10, which is characterized in that in the step for forming the stacking film layer
Suddenly, which includes multiple ribs, those ribs are arranged in the first film layer, which is respectively provided with a pair of of first side
And a pair of of second side, and two ribs are arranged first side along this, two ribs are arranged second side along this, wherein every two rib
The extending direction of item is parallel with the corresponding opposite side.
12. a kind of curved backboard, which is characterized in that be made, wrapped of the method for the curved backboard of production described in claim 1
Contain:
One stacks film layer, includes:
One first film layer；
One base has at least two ribs and is alternatively arranged in first film layer；
One second film layer is stacked at one side of the base with respect to first film layer；Wherein,
The stacking film layer is along a center of curvature bending shaft；
Second film layer is identical as the physical property of first film layer.
13. curved backboard as claimed in claim 12, which is characterized in that the base includes multiple ribs, and those ribs in
Parallel center of curvature axis direction arrangement.
14. curved backboard as claimed in claim 12, which is characterized in that the base includes two ribs, which is set to
In first film layer, which arranges along an opposite side of first film layer, and the parallel opposite side of extending direction.
15. a kind of curved backboard, which is characterized in that be made, wrapped of the method for the curved backboard of production described in any one of claim 10
Contain:
One stacks film layer, includes:
One first film layer；
One base has multiple ribs and is arranged in first film layer；
One second film layer, is stacked in the base of the stacking film layer, and the opposite side of the base is located at first film layer；
Wherein
The stacking film layer is simultaneously along a first curvature central axis and a torsion center bending shaft；
Second film layer is identical as the physical property of first film layer.
16. curved backboard as claimed in claim 15, which is characterized in that the base includes multiple ribs, first film layer point
Not Ju You two pairs of first sides and second side, and two ribs along this to first side be arranged, two ribs are along this to second side
Setting, wherein the extending direction of every two rib is parallel with corresponding dual side-edge.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104144710A TWI576637B (en) | 2015-12-31 | 2015-12-31 | Curved bezel and method for manufacturing the same |
| TW104144710 | 2015-12-31 |
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| Publication Number | Publication Date |
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| CN105589241A CN105589241A (en) | 2016-05-18 |
| CN105589241B true CN105589241B (en) | 2018-12-14 |
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| JPWO2009050812A1 (en) * | 2007-10-18 | 2011-02-24 | 富士通株式会社 | Display device and display system |
| US8420225B2 (en) * | 2008-01-02 | 2013-04-16 | EMS Engineered Materials Solution, LLC | Metallic laminate composite |
| CN202153541U (en) * | 2011-08-18 | 2012-02-29 | 京东方科技集团股份有限公司 | Flexible display |
| KR101649117B1 (en) * | 2011-11-08 | 2016-08-22 | 삼성전자주식회사 | Flexible display apparatus |
| EP2912650B1 (en) * | 2012-10-25 | 2018-12-05 | LG Electronics Inc. | Display device |
| CN103994381B (en) * | 2014-06-11 | 2017-05-17 | 深圳市华星光电技术有限公司 | Backlight module, liquid crystal display device and organic light-emitting diode display device |
| CN104006358A (en) * | 2014-06-17 | 2014-08-27 | 深圳市华星光电技术有限公司 | Curvature-adjustable backboard and application thereof |
| CN105093615B (en) * | 2015-07-29 | 2018-01-26 | 合肥鑫晟光电科技有限公司 | Curved face display panel and preparation method thereof, display device |
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| TW201723606A (en) | 2017-07-01 |
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