CN105589241A - Curved backboard and manufacturing method thereof - Google Patents
Curved backboard and manufacturing method thereof Download PDFInfo
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- CN105589241A CN105589241A CN201610108070.8A CN201610108070A CN105589241A CN 105589241 A CN105589241 A CN 105589241A CN 201610108070 A CN201610108070 A CN 201610108070A CN 105589241 A CN105589241 A CN 105589241A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000000704 physical effect Effects 0.000 claims abstract description 19
- 238000005452 bending Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 16
- 230000009977 dual effect Effects 0.000 claims 2
- 239000000463 material Substances 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 8
- 230000002153 concerted effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 208000034699 Vitreous floaters Diseases 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000875 corresponding effect 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
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012827 research and development Methods 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 invention relates to a kind of backboard, espespecially a kind of curved backboard and apply the display module of curved backboard.
Background technology
Along with lcd technology constantly promotes, display panels is used in flat-surface television, notes widelyOn type computer, mobile phone and all types of consumption electronic products. Known display panels be by an active array substrate withAnd the two-d display panel that forms of sandwiched one liquid crystal material between colored optical filtering substrates. In addition, in order further to promoteBeholder's viewing effect and telepresenc, the industry of being correlated with at present is also developed curved surface display and is reached this effect. Curved surface showsDevice is in order to maintain curvature, and way is to allow backboard in the mode of sheet-metal forming at present, arrives needed curvature, but because differentThe characteristic variations that material is subdued curve is not little, and backboard is shaped for the mode that produces curvature and need to beat rib by punching press, butThis two factor all can cause local curvature wayward, and can be subject to the bending stress impact that script is remaining and cause backboard to produceNon-essential flexural deformation, oppresses display floater on the contrary and the phenomenon of light leak occurs, and this light leak can be bright especially in the time showing dark stateAobvious, the display quality of Curved LCD is had to very serious negative effect. And when module thinning, can make curved surface display knotStructure undercapacity. Therefore, how can effectively address the above problem, real one of the current important research and development problem that belongs to, also becomes current phaseImproved target is needed in field, pass badly.
Summary of the invention
The invention provides a kind of method of making curved backboard, stablize the curved backboard of curvature to form tool.
One embodiment of the invention propose a kind of method of making curved backboard and comprise: the sky that tool the first temperature is providedBetween; One first rete and a basic unit are provided, and in this space in conjunction with form a stacking rete; And the temperature of adjusting this space byThe first temperature to the second temperature; Wherein the first rete is different from the physical property of basic unit, to make this stacking rete have a songRate radius, and along a center of curvature bending shaft.
One embodiment of the invention propose a kind of method of making curved backboard and more comprise: the temperature of adjusting this space is by theAfter one temperature to the second temperature, provide one second rete, be stacked in the one side of relative this first rete of this basic unit, to formStacking rete; And the temperature of replying this space is the first temperature; Wherein the second rete is identical with the physical property of the first rete.
According to the disclosed curved backboard of the invention described above one embodiment, comprising: a stacking rete, this stacking rete comprisesOne first rete; One basic unit, has at least two ribs and is spaced on the first rete; One second rete, is stacked at baseLayer is the one side of this first rete relatively; Wherein stacking rete is along a center of curvature bending shaft.
One embodiment of the invention propose a kind of method of making curved backboard and comprise: the sky that tool the first temperature is providedBetween; One first rete and a basic unit are provided, and in this space in conjunction with form a stacking rete; And the temperature of adjusting this space byThe first temperature to the second temperature; Wherein the first rete is different from the physical property of basic unit, to make stacked film layer have one firstRadius of curvature and a second curvature radius, and stacking rete is simultaneously curved along a first curvature central shaft and a torsion central shaftBent.
One embodiment of the invention propose a kind of method of making curved backboard and more comprise: the temperature of adjusting this space is by theAfter one temperature to the second temperature, provide one second rete, be stacked in the one side of relative this first rete of this basic unit, to formStacking rete; And the temperature of replying this space is the first temperature; Wherein the second rete is identical with the physical property of the first rete.
According to the disclosed curved backboard of the invention described above one embodiment, comprising: a stacking rete, this stacking rete comprisesOne first rete; One basic unit, has at least two ribs and is spaced on the first rete; One second rete, is stacked at baseLayer is the one side of this first rete relatively; Wherein stacking rete is simultaneously curved along a first curvature central shaft and a torsion central shaftBent.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Brief description of the drawings
Figure 1A to Fig. 1 C illustrates respectively the preparation method of curved backboard of one embodiment of the invention in the flow process of different phaseSchematic diagram.
Fig. 2 A to Fig. 2 B illustrates respectively the preparation method of curved backboard of another embodiment of the present invention in the stream of different phaseJourney schematic diagram.
Fig. 3 A to Fig. 3 B illustrates respectively the preparation method of curved backboard of another embodiment of the present invention in the stream of different phaseJourney schematic diagram.
The curved backboard that Fig. 4 A and Fig. 4 B illustrate respectively one embodiment of the invention is subject to temperature difference generation moment of flexure and pure with joint effortsThe schematic diagram of bending resistance square.
Fig. 5 A to Fig. 5 C illustrates respectively the preparation method of curved backboard of another embodiment of the present invention in the stream of different phaseJourney schematic diagram.
Wherein, Reference numeral
1,2 curved backboards
10 spaces
100, the 100 ' stacking rete
101 first retes
102 basic units
103 second retes
111,211,212 ribs
112 projections
The long limit of l
W minor face
L' first side
W' second side
t1、t2、t3Thickness
α1、α2Thermal coefficient of expansion
σ1、σ2Section stress
DT, dT ' temperature difference
R, R1, R2 radius of curvature
RA, RA1, RA2 center of curvature axle
The M moment of flexure of making a concerted effort
The pure bending resistance square of M '
S cross section
The final deformation length of L
X position of neutral axis
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical solution of the present invention is described in detail, further to understandObject of the present invention, scheme and effect, but be not the restriction as claims protection domain of the present invention.
Because traditional backboard is in the mode of sheet-metal forming, arrive needed curvature, but because a different material is subdued songThe characteristic variations of line is not little, and backboard is shaped for the mode that produces curvature and need to beat rib by punching press, but this two factor allCan cause local curvature wayward, and can be subject to originally remaining bending stress impact, and it is non-essential to cause backboard to produceFlexural deformation, causes backboard cannot reach target curvature. Further, the backboard of distortion is oppressed display floater and is leakedThe phenomenon of light.
In view of this, one embodiment of the present invention provides a kind of manufacture method of curved backboard, and backboard can see through differentThe combination of the rete of physical property, and give a temperature difference, then recovery temperature and form extremely low curved of a curvature variation againBackboard. See through this kind of manufacture method, can precisely control part and overall curvature, lift structure intensity, and do not need the mould being shapedTool, can reduce production costs.
Below narrate the first preparation method to curved backboard of the present invention is explained. Please refer to Figure 1A to Fig. 1 C, Figure 1AIllustrate respectively the preparation method of curved backboard of one embodiment of the invention to Fig. 1 C in the schematic flow sheet of different phase.
Please refer to Figure 1A, first provide the first rete 101 using in this preparation method to illustrate with the solid of basic unit 102Figure, by the first rete 101 and basic unit 102 stacking rete 100 of combination formation in the space 10 of tool the first temperature T 1, makes stacked filmThe temperature of layer 100 is the first temperature T 1. Both physical propertys of the first rete 101 and the basic unit 102 that wherein use are different. In detail, the space with the first temperature T 1 can be have can monitoring temperature environment such as laboratory, factory building or temperature-controlling chamber etc.,Also can be heater is set on carrying platform or is electrically connected temperature regulating device, to make the temperature of stacked film layer 100 as firstTemperature T 1.
Please refer to Figure 1B, the temperature of now adjusting space 10 changes to the second temperature T 2 from the first temperature T 1. Due to firstRete 101 is different from the thermal coefficient of expansion of basic unit 102, and the thermal expansion amount that causes both is different and pull mutually, makes the first filmThe stacking rete 100 that layer 101 forms with basic unit 102 has a radius of curvature R and along a center of curvature axle RA bending. EquallyGround, the first rete 101 also can determine stacking rete 100 radius of curvature with the physical property such as young's modulus and thickness of basic unit 102R. The thermal coefficient of expansion of the basic unit 102 selecting in one embodiment of this invention, is at least greater than the thermal expansion system of the first rete 101One times of number, and the thickness of basic unit 102 is the twice of the thickness of the first rete 101, thus, basic unit 102 can compressing firstRete 101 and make the direction bending of stacking rete 100 along center of curvature axle RA towards the first rete 101.
Then, please refer to Fig. 1 C, adjust the temperature in space 10 by after the first temperature T 1 to second temperature T 2, provide secondRete 103 is stacked in the one side of relative the first rete 101 of basic unit 102. Specifically, the second rete 103 and the first rete 101Lay respectively at the relative both sides of basic unit 102, and form the sandwich of layers knot with the second rete 103-102-of basic unit the first rete 101The stacking rete 100 ' of structure. Because basic unit 102 has radius of curvature R and along center of curvature axle RA bending, better the second rete 103Curved surface along basic unit's 102 tool radius of curvature R is attached in basic unit 102. The temperature of replying afterwards this space 10 is the first temperatureT1, that is to say, making temperature is originally the temperature that the stacking rete 100 ' of the second temperature T 2 is adjusted to the first temperature T 1. At this momentIt is R and the curved backboard 1 along center of curvature axle RA bending that stacking rete 100 ' has formed tool radius of curvature.
Wherein the second rete 103 is identical with the physical property of the first rete 101, and physical property comprises the coefficient of expansion, YoungCoefficient and thickness, at embodiments of the invention, the first rete 101 is selected identical material with the second rete 103. Now basic unit102 thermal coefficient of expansion is at least greater than a times of thermal coefficient of expansion of the first rete 101 or the second rete 103. In addition the first film,Layer 101 has thickness t1, basic unit 102 has thickness t2, the second rete 103 has thickness t3, the Thickness Ratio of these retes is t1：t2：t3＝1：2：1。
In addition, the making step of stacking rete 100 comprises, and referring again to Figure 1A, basic unit 102 comprises multiple ribs 111, willThese ribs 111 are spaced on the first rete 101. Tool is at regular intervals each other for these ribs 111, and parallel predetermined curvedBent center of curvature axle RA arranges, as shown in Figure 1B. Rib 111 can be fitted, screw locking etc. not limit mode be arranged at firstRete 101. The long limit l of parallel the first rete 101 of each rib 111 bearing of trend, is arranged on the first rete 101.
Similarly, when center of curvature axle RA vertical with the first rete 101 minor face w, can be along Parallel Curvature central shaft RADirection by rib 111 spread configurations on the first rete 101, wherein parallel the first rete of each rib 111 bearing of trend101 minor face w.
It is worth mentioning that, the quantity of rib 111 the more, and is evenly arranged at the first rete 101, stacking rete 100Bending effect is better, and the curved surface of formation is more smooth. As shown in Figure 1A and Figure 1B, rib 111 is respectively along the long limit of the first rete 101L arranges, and is arranged at the first rete 101 centers. But in another embodiment of the present invention, as shown in Figure 2 A, basic unit 102Comprising two rib 111, two ribs 111 only arranges at a pair of long limit l of contiguous the first rete 101.
The temperature of adjusting space 10 changes to the second temperature T 2 from the first temperature T 1, as shown in Figure 2 B, makes stacking rete 100There is a radius of curvature R and along a center of curvature axle RA bending. Similarly, when center of curvature axle RA essence and the first rete 101Minor face w vertical, two ribs 111 can be only arrange along the pair of short edges w of the first rete 101, the bearing of trend of its center rib 111 is flatRow minor face w, can make stacking rete 100 have a radius of curvature R and along a center of curvature axle RA bending.
In another embodiment of the present invention, please refer to Fig. 3 A, basic unit comprises multiple projections 112, and projection 112 is arranged at intervals atOn the first rete 101, the long limit l of parallel the first rete 101 of the bearing of trend of these projections 112. Adjust space 10 temperature fromThe first temperature T 1 changes to the second temperature T 2, as shown in Figure 3 B, makes stacking rete 100 have a radius of curvature R and along a curvatureCentral shaft RA bending. And these projections 112 are along Parallel Curvature central shaft RA direction spread configuration. Similarly, of the present inventionOther embodiment, center of curvature axle RA essence is vertical with the first rete 101 minor faces, parallel the first rete of each projection bearing of trend101 minor face w and arranging along Parallel Curvature central shaft RA direction.
In addition, the present invention can for example, by the physical property of basic unit 102 and the first rete 101 (thermal coefficient of expansion, Young systemNumber and thickness) difference, the position of neutral axis while estimating the pure bending resistance square that the desired radius of curvature of curved backboard 1 need produce,And obtain by this and offer the required temperature difference of stacking rete 100. For instance, referring to Fig. 4 A and Fig. 4 B, stacked filmIn layer 100, the thermal coefficient of expansion of basic unit 102 and the first rete 101 is respectively α1、α2(unit: ppm), due to both thermal expansionsCoefficient difference, can make stacking rete 100 experience the first temperature T 1 to second temperature T 2 produce temperature difference dT time becauseTwo material heat expansion amounts are different and pull mutually, and must meet on two material section S, to make a concerted effort be zero, that is meet relational expression(1)。
σ1t1＝σ2t2(1)。
Wherein, σ1、σ2Represent that respectively the first rete 101 and basic unit 102 are in the section stress (unit: MPa) of section S, t1、t2Represent respectively the thickness of the first rete 101 and basic unit 102, moreover, utilize material stress and strain stress relation can obtain relational expression(2)。
σ1＝E1ε1；σ2＝E2ε2(2)。
Wherein, E1、E2Represent respectively the young's modulus (unit: MPa) of the first rete 101 and basic unit 102, ε1、ε2Generation respectivelyTable the first rete 101 with basic unit 102 in the strain of the cross section of section S, moreover, utilize materials hot deformation and strain stress relation to be closedBe formula (3).
ε1L+ε2L＝(α2-α1)dTL(3)。
Wherein, L represents the final deformation length (unit: mm) of stacking rete 100, and dT represents the first temperature T 1 to second temperatureThe temperature difference of degree between T2 (unit: DEG C). Can derive σ by relational expression (1)～(3)1With σ2And the relation between dT is as relational expression(4)、(5)。
Then, utilize stress pair cross-section S to get first moment, the moment M of making a concerted effort that can obtain causing because of the temperature difference is as relational expression (6).
Derived the moment M of making a concerted effort causing because of temperature difference by relational expression (6), please refer to shown in Fig. 4 B, must be by stackingRete 100 produces the pure anti-moment M equating ' offset, that just can be satisfied with section S is all zero condition with resultant moment with joint efforts.Now need the position of neutral axis that estimates stacking rete 100 as shown in following relational expression (7), and get once with stress centering axleSquare, can calculate and need to produce and the corresponding pure anti-moment M of the moment M of making a concerted effort '.
Wherein, X represents position of neutral axis. Can calculate and produce pure anti-moment M ' after the radius of curvature R of stacking rete 100As following relational expression (8).
Wherein, known target radius of curvature R, can derive by (7)～(8) formula the first rete of stacking rete 100101 with basic unit 102, there is different thermalexpansioncoefficientαs, young's modulus E and thickness t, can produce the curved backboard of radius of curvature RRequired temperature gap dT. The now difference of the thermal coefficient of expansion of the first rete 101 and basic unit 102 (α 2-α 1) and radius of curvature RBe inversely proportional to, and temperature gap dT and radius of curvature R are inversely proportional to.
Utilize stacking rete 100 that the temperature difference makes to there is curvature R and towards center of curvature axle RA bending in aforementioned, then in conjunction withThe selection of thickness, young's modulus and the thermal coefficient of expansion of the material of two rete 103, the second retes 103, make to produce the temperature difference againWhen dT ', the resultant moment that pair cross-section S causes is still zero. In one embodiment of this invention, select the first rete 101 andThe material of two retes 103 is equal, and thickness is identical, even if there is variations in temperature dT ', neither can produce moment of flexure with joint efforts, therefore the curved back of the body againThe change amount of the curvature of plate 1, below 10%, is stablized curvature and form.
The 65 inch display floaters taking manufacture radius of curvature as 5000mm are as example, and the thickness of basic unit 102 is 1.2 millimeters, and firstThe thickness of rete 101 and the second rete 103 is all 0.6 millimeter, and the material that basic unit 102 is used is aluminium, the first rete 101 and secondThe material that rete 103 uses is SECC (Steel-Electrogalvanized-ColdRolled – Coil, cold rolling electroplating zinc steelPlate). Wherein the young's modulus of SECC is 210GPa, and thermal coefficient of expansion is 11.5ppm. The young's modulus of aluminium is 70GPa, thermal expansionCoefficient is 23.6ppm. The rib width of basic unit 102 is 14mm, and the width of rib spacing is 21mm, the first rete 101 and basic unitWidth ratio be 2.5, the equivalent young's modulus that can be derived from thus the first rete 101 is E1=525GPa, the Young of basic unit 102Coefficient is that E2 is 70GPa, and substitution relational expression (7) calculates position of neutral axis X=0.4895mm, then substitution relational expression (8), canLearn desired radius of curvature R=5000mm, need to give stacking rete 100 temperature difference dT=20.4 DEG C. Thus, can learnGive stacking rete 100 temperature difference dT=20.4 DEG C, the stacking rete 100 that can make has radius of curvature 5000mm and in curvatureBent spindle.
Please refer to Fig. 5 A to Fig. 5 C, Fig. 5 A to Fig. 5 C illustrates respectively the making side of the curved backboard of another embodiment of the present inventionMethod is in the schematic flow sheet of different phase. Because the embodiment of Fig. 5 A to Fig. 5 C is similar to the embodiment of Figure 1A to Fig. 1 C, whereinIdentical label is representing the same or similar element of embodiment with Figure 1A to Fig. 1 C, therefore only for different locatingBright.
Please refer to Fig. 5 A, first provide the first rete 101 using in this preparation method to illustrate with the solid of basic unit 102Figure, by the first rete 101 and basic unit 102 stacking rete 100 of combination formation in the space 10 of tool the first temperature T 1, makes stacked filmThe temperature of layer 100 is the first temperature T 1. Wherein both physical propertys of the first rete 101 and basic unit 102 are different. Specifically,The space with the first temperature T 1 can be have can monitoring temperature environment such as laboratory, factory building or temperature-controlling chamber etc., also canTo be heater is set on carrying platform or is electrically connected temperature regulating device, to make the temperature of stacked film layer 100 as the first temperatureT1。
Please refer to Fig. 5 B, the temperature of now adjusting space 10 changes to the second temperature T 2 from the first temperature T 1. Due to firstRete 101 is different from the thermal coefficient of expansion of basic unit 102, and the thermal expansion amount that causes both is different and pull mutually, makes the first filmLayer 101 has first curvature radius R1 and second curvature radius R2 with the stacking rete 100 that basic unit 102 forms, and stacked filmLayer 100 is simultaneously along first curvature central shaft RA1 and torsion central shaft RA2 bending, and this first curvature central shaft RA1 and thisTorsion central shaft RA2 is not parallel to each other each other. The thermal expansion system of the basic unit 102 selecting in one embodiment of this invention,Number is at least greater than a times of thermal coefficient of expansion of the first rete 101, and the thickness of basic unit 102 is the thickness of the first rete 101Twice, thus, basic unit 102 can compressing the first retes 101 and make stacking rete 100 along first curvature central shaft RA1 withThis torsion central shaft RA2 is towards the direction bending of the first rete 101.
Then, please refer to Fig. 5 C, adjust the temperature in space 10 by after the first temperature T 1 to second temperature T 2, provide secondRete 103 is stacked in the one side of relative the first rete 101 of basic unit 102, to form stacking rete 100 '. Specifically, secondRete 103 and the first rete 101 lay respectively at the relative both sides of basic unit 102, and form and have the second rete 103-102-of basic unitThe stacking rete 100 ' of the sandwich of layers structure of the first rete 101. The temperature of replying afterwards this space 10 is the first temperature T 1, alsoBe to say, making temperature is originally the temperature that the stacking rete 100 ' of the second temperature T 2 is adjusted to the first temperature T 1. Stacked film at this momentIt is R1, R2 and the curved backboard 2 along center of curvature axle RA1, RA2 bending that layer 100 has formed tool radius of curvature.
Wherein the second rete 103 is identical with the physical property of the first rete 101, and physical property comprises the coefficient of expansion, YoungCoefficient and thickness, at embodiments of the invention, the first rete 101 is selected identical material with the second rete 103. Now basic unit102 thermal coefficient of expansion is at least greater than a times of thermal coefficient of expansion of the first rete 101 or the second rete 103. In addition the first film,Layer 101 has thickness t1, basic unit 102 has thickness t2, the second rete 103 has thickness t3, the Thickness Ratio of these retes is t1：t2：t3＝1：2：1。
Wherein, the making step of stacking rete 100 comprises, and basic unit 102 comprises multiple ribs 211,212, by these ribs211,212 be arranged on the first rete 101. Multiple ribs 21 are arranged in parallel first curvature central shaft RA1 direction, multiple ribsBar 212 is arranged as shown in Figure 5 B in parallel torsion central shaft RA2. Rib 211,212 can be fitted, screw locking etc. do not limitMode is arranged at the first rete 101, and the respectively first side l ', the of parallel the first rete 101 of rib 211,212 bearing of trendsDual side-edge w '.
Wherein, first curvature central shaft RA1 is not parallel with torsion central shaft RA2 each other. Thus, get final product shapeBecome to have the curved backboard 2 of hyperbolicity, the change amount of the curvature of curved backboard 2, below 10%, is stablized curvature and form.
Certainly, the present invention also can have other various embodiments, in the situation that not deviating from spirit of the present invention and essence thereof, ripeKnow those skilled in the art when making according to the present invention various corresponding changes and distortion, but these corresponding changes and changeShape all should belong to the protection domain of the appended claim of the present invention.
Claims (18)
1. a method of making curved backboard, is characterized in that, step comprises:
One space of tool the first temperature is provided;
One first rete and a basic unit are provided, and in this space in conjunction with form a stacking rete; And
Adjust the temperature in this space by the first temperature to the second temperature; Wherein,
This first rete is different from the physical property of this basic unit, to make this stacking rete there is a radius of curvature, and along a songThe bending of rate central shaft.
2. the method for the curved backboard of making as claimed in claim 1, is characterized in that, in the step that forms this stacking rete,This basic unit comprises multiple ribs, and those ribs are spaced and are arranged on this first rete, and those ribs are in parallel this curvatureCentral axis direction is arranged.
3. the method for the curved backboard of making as claimed in claim 1, is characterized in that, in the step that forms this stacking rete,This basic unit comprises a pair of rib, and this is arranged along an opposite side of this first rete rib, and parallel this dual side-edge of bearing of trend.
4. the method for the curved backboard of making as claimed in claim 1, is characterized in that, more comprises:
Adjust the temperature in this space by after the first temperature to the second temperature, one second rete is provided, be stacked at this basic unit relativeIn the one side of this first rete, to form this stacking rete; And
The temperature of replying this space is the first temperature; Wherein,
This second rete is identical with the physical property of this first rete.
5. the method for the curved backboard of making as described in claim 1 or 4, is characterized in that, this first rete, this basic unit and thisThe physical property of the second rete comprises thermal coefficient of expansion, young's modulus and thickness.
6. the method for the curved backboard of making as claimed in claim 4, is characterized in that, the thickness of this of use the second rete withThe thickness of this first rete is identical.
7. the method for the curved backboard of making as claimed in claim 1, is characterized in that, the heat of this first rete and this basic unit is swollenThe difference of swollen coefficient and this radius of curvature are inversely proportional to.
8. the method for the curved backboard of making as claimed in claim 1, is characterized in that, this first temperature and this second temperature itBetween there is a temperature gap, this temperature gap and this radius of curvature are inversely proportional to.
9. the method for the curved backboard of making as claimed in claim 1, is characterized in that, this first rete has thickness t1, this baseLayer has thickness t2, this second rete has thickness t3, wherein the Thickness Ratio of those retes can meet the following conditions:
t1：t2：t3＝1：2：1。
10. the method for the curved backboard of making as claimed in claim 1, is characterized in that, the thermal coefficient of expansion of this basic unit at leastBe greater than a times of thermal coefficient of expansion of this first rete.
Make the method for curved backboard for 11. 1 kinds, it is characterized in that, step comprises:
One space of tool the first temperature is provided;
One first rete and a basic unit are provided, and in this space in conjunction with form a stacking rete; And
Adjust the temperature in this space by the first temperature to the second temperature; Wherein
This first rete is different from the physical property of this basic unit, to make this stacking rete have a first curvature radius and oneTwo radius of curvature, and this stacking rete is simultaneously along a first curvature central shaft and a torsion central shaft bending.
The method of the curved backboard of 12. making as claimed in claim 11, is characterized in that, in the step that forms this stacking reteSuddenly, this basic unit comprises multiple ribs, and those ribs are arranged on the first rete, and this first rete has respectively a pair of first sideAnd a pair of second side, and two ribs arrange first side along this, and two ribs arrange second side along this, wherein every two ribsThe bearing of trend of bar is parallel with this corresponding opposite side.
The method of the curved backboard of 13. making as claimed in claim 11, is characterized in that, more comprises:
Adjust the temperature in this space by after the first temperature to the second temperature, one second rete is provided, be stacked at this basic unit relativeIn the one side of this first rete, to form this stacking rete; And
The temperature of replying this space is the first temperature; Wherein
This second rete is identical with the physical property of this first rete.
14. 1 kinds of curved backboards, is characterized in that, comprise:
One stacking rete, comprises:
One first rete;
One basic unit, has at least two ribs and is spaced on this first rete;
One second rete, is stacked at this basic unit one side of this first rete relatively; Wherein,
This stacking rete is along a center of curvature bending shaft.
15. curved backboards as claimed in claim 14, is characterized in that, this basic unit comprises multiple ribs, and those ribs inParallel this center of curvature direction of principal axis is arranged.
16. curved backboards as claimed in claim 14, is characterized in that, this basic unit comprises two ribs, and this two rib is arranged atOn this first rete, this two rib is arranged along an opposite side of this first rete, and parallel this opposite side of bearing of trend.
17. 1 kinds of curved backboards, is characterized in that, comprise:
One stacking rete, comprises:
One first rete;
One basic unit, has multiple ribs and is arranged on this first rete;
One second rete, is stacked in the basic unit of this stacking rete, and lays respectively at the opposite side of this basic unit with this first rete;Wherein
This stacking rete is simultaneously along a first curvature central shaft and a torsion central shaft bending.
18. curved backboards as claimed in claim 17, is characterized in that, this basic unit comprises multiple ribs, and this first rete dividesDo not there is two pairs of first sides and second side, and two ribs arrange to first side along this, two ribs along this to second sideArrange, wherein the bearing of trend of every two ribs 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 true CN105589241A (en) | 2016-05-18 |
| CN105589241B CN105589241B (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610108070.8A Active CN105589241B (en) | 2015-12-31 | 2016-02-26 | Curved backboard and manufacturing method thereof |
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| TW (1) | TWI576637B (en) |
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| TWI662325B (en) * | 2017-10-19 | 2019-06-11 | 友達光電股份有限公司 | Display device |
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| CN101588920A (en) * | 2008-01-02 | 2009-11-25 | Ems工程材料公司 | Metallic laminate composite |
| US20100188422A1 (en) * | 2007-10-18 | 2010-07-29 | Fujitsu Limited | Display device and display system |
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| 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 |
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| US20100188422A1 (en) * | 2007-10-18 | 2010-07-29 | Fujitsu Limited | Display device and display system |
| CN101588920A (en) * | 2008-01-02 | 2009-11-25 | Ems工程材料公司 | Metallic laminate composite |
| CN104756176A (en) * | 2012-10-25 | 2015-07-01 | Lg电子株式会社 | Display device |
| CN103994381A (en) * | 2014-06-11 | 2014-08-20 | 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 |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI576637B (en) | 2017-04-01 |
| TW201723606A (en) | 2017-07-01 |
| CN105589241B (en) | 2018-12-14 |
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