WO2019227670A1 - 曲面屏贴合装置及贴合方法 - Google Patents

曲面屏贴合装置及贴合方法 Download PDF

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Publication number
WO2019227670A1
WO2019227670A1 PCT/CN2018/099400 CN2018099400W WO2019227670A1 WO 2019227670 A1 WO2019227670 A1 WO 2019227670A1 CN 2018099400 W CN2018099400 W CN 2018099400W WO 2019227670 A1 WO2019227670 A1 WO 2019227670A1
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Prior art keywords
display panel
curved
flexible display
curved screen
polymer layer
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PCT/CN2018/099400
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English (en)
French (fr)
Inventor
高司恒
谭金龙
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US16/091,111 priority Critical patent/US11059277B2/en
Publication of WO2019227670A1 publication Critical patent/WO2019227670A1/zh
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/842—Containers
    • H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/206—Organic displays, e.g. OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED

Definitions

  • the invention relates to the technical field of liquid crystal display, in particular to a curved screen bonding device and a bonding method.
  • AMOLED Active Matrix / Organic Light Emitting Diode
  • Flexible (flexible) AMOLED can meet the market's high requirements for mobile and portable products.
  • 3D bonding is one of the key technologies for curved screen manufacturing.
  • the current mainstream 3D bonding technology is Guide Film (Guide Film) technology.
  • Film (Guide film) guides Panel (display panels, such as flexible display panels) to bend, on the one hand, it can cope with large curvature of CG (Curved Glass, curved glass), on the other hand, it can reduce damage to Panel; In the contact between CG and Panel, the middle flat part and the edge curved part are in contact at the same time, and it is difficult for the bubbles to be effectively discharged to the edge during the bonding process.
  • the existing 3D bonding technology easily causes bubbles to appear, which leads to the bottom line of product yield.
  • the invention provides a curved screen bonding device and a bonding method, in order to solve the technical problem in the existing 3D bonding technology that it is difficult for bubbles to be discharged to the edge due to the simultaneous contact bonding between the CG and the Panel's middle flat portion and the edge curved portion.
  • the present invention provides a curved screen bonding device for bonding a flexible display panel and curved glass to generate a curved screen, which includes a bearing abutment, an adsorption abutment, a deformable member, and a smoothing member. Among them,
  • the carrying base is used to carry the flexible display panel; wherein a non-light emitting side surface of the flexible display panel is provided with a photoactive polymer layer; the carrying base includes a raised bearing surface;
  • the adsorption abutment and the bearing abutment are relatively movable and configured to adsorb the curved glass;
  • the deformation member includes a light source for deforming the photoactive polymer layer after receiving light, thereby bending the flexible display panel;
  • the flattening member is used to attach the flexible display panel to the curved glass surface.
  • the supporting base is further provided with an adsorption hole, and the adsorption hole is disposed on the bearing surface.
  • a protruding area of the bearing surface is a flat surface, and other parts are curved surfaces.
  • the protruding area of the bearing surface is adhesive.
  • the smoothing member includes a roller.
  • a radius of the roller is smaller than a minimum radius of curvature of the curved glass edge surface.
  • a surface portion of the roller is formed of a flexible silicone material.
  • the supporting abutment is formed of a hard silica gel material.
  • a light emitting direction of the light source is toward the bearing surface.
  • the photoactive polymer layer includes a carbon nanomaterial layer and a thermally responsive substance layer, and the thermally responsive substance layer is disposed between the flexible display panel and the carbon nanomaterial layer.
  • the curved screen bonding device further includes a removing member for removing the photoactive polymer layer.
  • the present invention provides a curved screen bonding method, which uses the curved screen bonding device provided by the present invention, including:
  • the flexible display panel is carried by a carrying base; a non-light emitting side surface of the flexible display panel is provided with a photoactive polymer layer; the carrying base includes a raised bearing surface;
  • the deformation member controls the light source, and causes the photoactive polymer layer to deform after receiving light, thereby bending the flexible display panel;
  • the bearing base and the adsorption base move relatively, and the curved flexible display panel is bonded to the curved glass;
  • the flexible display panel is attached to the curved glass surface by a flattening member.
  • the step of adsorbing curved glass by the adsorption abutment includes:
  • the curved glass is fixed on the adsorption abutment by a clamping and fixing method.
  • the deforming member controls the light source
  • the step of deforming the photoactive polymer layer after receiving light includes:
  • the flexible display panel is irradiated to the bearing surface from a surface on which the photoactive polymer layer is not provided.
  • the step of relatively moving the load bearing base and the suction base to attach the curved flexible display panel to the curved glass includes:
  • the supporting base is desorbed and removed.
  • the step of attaching the flexible display panel to the curved glass surface by smoothing a member includes:
  • the flattening member presses a protrusion of the flexible display panel on the surface of the photoactive polymer layer toward the edge of the flexible display panel through the smoothing member.
  • the steps include:
  • a roller is used to roll and attach to the two ends of the photoactive polymer layer, so that the flexible display panel is bonded to the curved glass from the middle to the two ends.
  • the curved screen bonding method controls the light source in the deforming member, and the step of deforming the photoactive polymer layer after receiving light includes:
  • the curved screen bonding device is evacuated into a vacuum state.
  • the step of attaching the curved screen bonding method to attaching the flexible display panel to the curved glass surface by smoothing a member includes:
  • the step of attaching the curved screen bonding method to attaching the flexible display panel to the curved glass surface by smoothing a member includes:
  • the photoactive polymer layer is removed.
  • the beneficial effects of the present invention are: driving the flexible display panel through the light-active polymer layer under the control of the light source, then bonding the curved flexible display panel to curved glass, and finally bonding the flexible display panel to curved glass;
  • the present invention adopts segmented bonding, which can effectively discharge air bubbles to the edge, and provides a product yield.
  • FIG. 1 is a schematic structural diagram of a curved screen bonding device according to the present invention.
  • FIG. 2 is a top view of a bearing surface of the present invention
  • FIG. 3 is a schematic diagram of a roller of the present invention.
  • FIG. 4 is a schematic diagram of deformation of a photoactive polymer according to the present invention.
  • FIG. 5 is a first state diagram of a curved screen bonding process according to the present invention.
  • FIG. 6 is a second state diagram of a curved screen bonding process according to the present invention.
  • FIG. 9 is a fifth state diagram of the curved screen bonding process according to the present invention.
  • FIG. 10 is a schematic flowchart of a curved screen bonding method according to the present invention.
  • the present invention addresses the technical problem that the contact between CG and Panel during the 3D bonding process in the prior art is that the middle plane part and the edge curved part are in contact at the same time, and it is difficult for the bubbles to be effectively discharged to the edge during the bonding process; this embodiment can solve the problem The flaw.
  • the curved screen bonding device As shown in FIG. 1, the curved screen bonding device provided by the present invention includes:
  • the adsorption base 12 is movably disposed relative to the supporting base 11 and is configured to adsorb the curved glass;
  • the deformation member 13 includes a light source for deforming the photoactive polymer layer after receiving light, thereby bending the flexible display panel; and,
  • the photoactive polymer layer drives the flexible display panel to bend toward the bearing surface to form a protrusion; the bearing base and the adsorption base move relatively, and The protrusion of the flexible display panel is bonded to the curved glass; the flattening member is on the surface of the photoactive polymer layer, and the protrusion of the flexible display panel is used as a starting point to the flexible display panel.
  • the edges of the flexible display panel are pressed together with the curved glass.
  • the bearing base 11 is further provided with an adsorption hole 111, and the adsorption hole 111 is provided on the bearing surface 112.
  • a flexible display panel with a photoactive polymer layer is adsorbed on a supporting base.
  • the bearing abutment is made of hard silicone material, which can solve the problem that most of the existing bearing abutments are flexible materials. It is difficult to ensure the degree of vacuum and flatness of the contact surface during the extrusion process, resulting in the occurrence of in-plane bubbles problem.
  • the protruding area of the bearing surface has adhesiveness, so that the flat area of the bearing surface has a certain adhesiveness, which can better fix the flexible display panel, has low adhesiveness, and can be peeled off with a slight peeling force.
  • the protruding area of the bearing surface is a flat surface, and the other parts are curved surfaces.
  • This setting method can be more compatible with the deformation of the photoactive polymer layer.
  • the smoothing member 14 includes a roller, and a radius R of the roller is smaller than a minimum curvature radius r of the curved glass edge surface to ensure the bonding quality at the edges.
  • the surface portion of the roller is formed of a flexible silicone material, which not only protects the material layer from damage, but also ensures that the pressure during the bonding process is uniformly applied to the material layer.
  • the photoactive polymer layer includes a carbon nanomaterial layer and a thermally responsive substance layer, and the thermally responsive substance layer is disposed between the flexible display panel and the carbon nanomaterial layer.
  • a light emitting direction of the light source is toward a fixing surface of the second fixing member.
  • the photoactive polymer Bending Actuator is a two-layer structure composed of carbon nanomaterials, such as SWNTs (Single-walled Nanotube) and graphene, and thermally responsive substances, such as polycarbonate and hydrogel.
  • carbon nanomaterials such as SWNTs (Single-walled Nanotube) and graphene
  • thermally responsive substances such as polycarbonate and hydrogel.
  • the light response time of this material is very fast, the time from never bending to the maximum bending angle is about 0.7 s.
  • the intensity of the light is greater, the angle of the Bending is larger, and the intensity of the light can control the Bending angle.
  • the curved screen bonding method provided by the present invention includes the following steps:
  • the adsorption abutment base 12 is processed according to the curved surface of the curved glass a, and is used to carry the curved glass a.
  • the edge of the curved glass a is bent. position.
  • the non-light emitting side surface of the flexible display panel b is provided with a photoactive polymer layer c.
  • the supporting base 11 includes a supporting surface, and the supporting surface includes at least one protruding area. As shown in FIG. 5, the carrying base 11 carries a flexible display panel b.
  • the deformed member controls the light source, so that the photoactive polymer layer undergoes deformation after receiving light, thereby bending the flexible display panel;
  • This step is achieved by activating a light source and irradiating the flexible display panel b from a surface on which the photoactive polymer layer is not provided to the bearing surface.
  • the photoactive polymer layer c drives the flexible display panel b, and the photoactive polymer layer c is in full contact with the bearing surface.
  • the inside of the bonding device can be evacuated.
  • the supporting base 11 is moved by the mechanism, and the protrusions of the flexible display panel b are bonded to the curved glass a. At this time, the supporting base 11 is desorbed, but the flexible display panel b is The photoactive polymer layer c is still bent under the traction, and then the supporting base 11 is removed.
  • the flexible display panel and the flexible display panel are pressed against the edge of the flexible display panel by smoothing the member on the surface of the photoactive polymer layer with the protrusion of the flexible display panel as a starting point. Curved glass bonding;
  • the light-active polymer layer c is affixed to both ends so that the flexible display panel b is bonded to the curved glass a from the middle to the two ends. After the bonding is completed, the vacuum is removed.
  • the photoactive polymer layer c is removed.
  • a photoactive polymer is used, and the polymer can be automatically bent under the light condition, and the deformation of the polymer is controlled by controlling the light time.
  • the polymer film is attached to the lower surface of the corresponding material layer, and the material layer is bent under specific lighting conditions, so that the edge of the material layer is avoided and the degree of bending of the material layer can be controlled.
  • the generation of edge bubbles can be controlled to the greatest extent.
  • the present invention provides a flexible display panel surface A light-active polymer layer is made, and then the light-active polymer layer drives the flexible display panel to bend to the bearing surface under the control of the light source in the deformed member to form a protrusion, and then the bearing base and the adsorption base The stage is relatively moved, and the protrusions of the curved flexible display panel are bonded to the curved glass. Finally, the smoothing member is on the surface of the photoactive polymer layer, and the protrusions of the flexible display panel are used as a starting point.

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Abstract

本发明提供一种曲面屏贴合装置及贴合方法，通过光活性聚合物层在光源控制下，带动柔性显示面板弯曲，然后将弯曲的柔性显示面板与曲面玻璃贴合，最后将柔性显示面板与曲面玻璃贴合；相较于现有技术，本发明采用分段贴合，可以有效的将气泡向边缘处排出，提供了产品良率。

Description

曲面屏贴合装置及贴合方法 技术领域
本发明涉及液晶显示技术领域，尤其涉及一种曲面屏贴合装置及贴合方法。
 背景技术
AMOLED（Active Matrix/Organic Light Emitting Diode，主动矩阵有机发光二极体面板）是未来显示行业的新的增长点，其中，Flexible（易弯曲的）AMOLED可以满足市场对移动便携产品的高要求。
Flexible AMOLED工艺复杂，其中3D贴合是曲面屏制造的关键技术之一，现有的主流3D贴合技术是Guide Film（引导薄膜）技术，通过Guide Film（引导薄膜）引导Panel（显示面板，如柔性显示面板等）弯曲，一方面可以应对大曲率的CG（Curved Glass，曲面玻璃），另一方面能减少对Panel的损伤；但是由于贴合过程中，CG与Panel的接触是中间平面部分与边缘曲面部分是同时接触的，贴合过程中气泡难以有效的向边缘排出。
综上所述，现有3D贴合技术容易导致出现气泡，导致产品良率交底。
 技术问题
本发明提供一种曲面屏贴合装置及贴合方法，以解决现有3D贴合技术中因为CG与Panel中间平面部分与边缘曲面部分同时接触贴合导致气泡难以向边缘排出的技术问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明提供一种曲面屏贴合装置，用于将柔性显示面板与曲面玻璃相贴合生成曲面屏，其包括承载基台、吸附基台、形变构件以及抚平构件，其中，
所述承载基台用于承载所述柔性显示面板；其中，所述柔性显示面板的非发光侧表面设置有光活性聚合物层；所述承载基台包括一呈隆起状的承载面；
所述吸附基台与所述承载基台可相对移动设置，用于吸附所述曲面玻璃；
所述形变构件包括光源，用于使所述光活性聚合物层接受光照后产生形变，进而使所述柔性显示面板弯曲；以及，
所述抚平构件用于将所述柔性显示面板贴附于所述曲面玻璃表面。
根据本发明一优选实施例，其中所述承载基台还设置有吸附孔，所述吸附孔设置在所述承载面上。
根据本发明一优选实施例，其中所述承载面的突出区域为平面，其他部分为曲面。
根据本发明一优选实施例，其中所述承载面的突出区域具备粘性。
根据本发明一优选实施例，其中所述抚平构件包括滚轮。
根据本发明一优选实施例，其中所述滚轮的半径小于所述曲面玻璃边缘曲面的最小曲率半径。
根据本发明一优选实施例，其中所述滚轮的表面部分采用柔性硅胶材料形成。
根据本发明一优选实施例，其中所述承载基台采用硬硅胶材料形成。
根据本发明一优选实施例，其中所述光源的发光方向朝向所述承载面。
根据本发明一优选实施例，其中所述光活性聚合物层包括碳纳米材料层和热响应物质层，所述热响应物质层设置在所述柔性显示面板与所述碳纳米材料层之间。
根据本发明一优选实施例，其中所述曲面屏贴合装置还包括去除构件，用于去除所述光活性聚合物层。
本发明提出了一种曲面屏贴合方法，其使用本发明提供的曲面屏贴合装置，包括：
通过吸附基台吸附曲面玻璃；
通过承载基台承载柔性显示面板；所述柔性显示面板的非发光侧表面设置有光活性聚合物层；所述承载基台包括一呈隆起状的承载面；
形变构件控制光源，使所述光活性聚合物层接受光照后产生形变，进而使所述柔性显示面板弯曲；
所述承载基台与所述吸附基台相对移动，将弯曲的柔性显示面板与所述曲面玻璃贴合；
通过抚平构件，将所述柔性显示面板贴附于所述曲面玻璃表面。其中所述通过吸附基台吸附曲面玻璃的步骤包括：
采用卡位固定方式将所述曲面玻璃固定在所述吸附基台。
根据本发明一优选实施例，其中所述形变构件控制光源，使所述光活性聚合物层接受光照后产生形变的步骤包括：
激活光源；
从所述柔性显示面板没有设置光活性聚合物层的表面向所述承载面照射。
根据本发明一优选实施例，其中所述承载基台与所述吸附基台相对移动，将弯曲的柔性显示面板与所述曲面玻璃贴合的步骤包括：
带动所述承载基台移动，将所述柔性显示面板的凸起与所述曲面玻璃贴合；
所述承载基台解除吸附，并移开。
根据本发明一优选实施例，其中所述通过抚平构件，将所述柔性显示面板贴附于所述曲面玻璃表面的步骤包括：
通过所述抚平构件，在所述光活性聚合物层的表面，以所述柔性显示面板的凸起为起点，向所述柔性显示面板的边缘压制，将所述柔性显示面板与所述曲面玻璃贴合。
根据本发明一优选实施例，其中所述通过所述抚平构件，在所述光活性聚合物层的表面，以所述柔性显示面板的凸起为起点，向所述柔性显示面板的边缘压制的步骤包括：
使用滚轮，在所述光活性聚合物层上向两端滚动贴附，使所述柔性显示面板由中间向两端与所述曲面玻璃贴合。
根据本发明一优选实施例，其中所述曲面屏贴合方法在所述形变构件控制光源，使所述光活性聚合物层接受光照后产生形变的步骤包括：
将所述曲面屏贴合装置内抽成真空状态。
根据本发明一优选实施例，其中所述曲面屏贴合方法在所述通过抚平构件，将所述柔性显示面板贴附于所述曲面玻璃表面的步骤包括：
撤去得到曲面屏贴合装置的真空状态。
根据本发明一优选实施例，其中所述曲面屏贴合方法在所述通过抚平构件，将所述柔性显示面板贴附于所述曲面玻璃表面的步骤包括：
去除所述光活性聚合物层。
 有益效果
本发明的有益效果为：通过光活性聚合物层在光源控制下，带动柔性显示面板弯曲，然后将弯曲的柔性显示面板与曲面玻璃贴合，最后将柔性显示面板与曲面玻璃贴合；相较于现有技术，本发明采用分段贴合，可以有效的将气泡向边缘处排出，提供了产品良率。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明曲面屏贴合装置的结构示意图；
图2为本发明承载面俯视图；
图3为本发明滚轮示意图；
图4为本发明光活性聚合物的形变示意图；
图5为本发明曲面屏贴合过程中的第一状态图；
图6为本发明曲面屏贴合过程中的第二状态图；
图7为本发明曲面屏贴合过程中的第三状态图；
图8为本发明曲面屏贴合过程中的第四状态图；
图9为本发明曲面屏贴合过程中的第五状态图；
图10为本发明曲面屏贴合方法的流程示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有技术3D贴合过程中，CG与Panel的接触是中间平面部分与边缘曲面部分是同时接触的，贴合过程中气泡难以有效的向边缘排出的技术问题；本实施例能够解决该缺陷。
如图1所示，本发明提供的曲面屏贴合装置包括：
承载基台11，用于承载柔性显示面板；其中，柔性显示面板的非发光侧表面设置有光活性聚合物层；所述承载基台包括一呈隆起状的承载面；
吸附基台12，与所述承载基台11可相对移动设置，用于吸附所述曲面玻璃；
形变构件13，包括光源，用于使所述光活性聚合物层接受光照后产生形变，进而使所述柔性显示面板弯曲；以及，
抚平构件14，用于将所述柔性显示面板贴附于所述曲面玻璃表面；
其中，所述光活性聚合物层在所述形变构件的控制下，带动所述柔性显示面板向所述承载面弯曲，形成凸起；所述承载基台与所述吸附基台相对移动，将所述柔性显示面板的凸起与所述曲面玻璃贴合；所述抚平构件在所述光活性聚合物层的表面，以所述柔性显示面板的凸起为起点，向所述柔性显示面板的边缘压制，将所述柔性显示面板与所述曲面玻璃贴合。
可选的，承载面俯视图如图2所示，由图2可知，承载基台11还设置有吸附孔111，所述吸附孔111设置在所述承载面112上，作用是利用真空压力将设置有光活性聚合物层的柔性显示面板吸附在承载基台上。
可选的，承载基台使用硬硅胶材质，可以解决现有承载基台多是柔性材质，难以保证在挤压的过程中贴附接触面的真空度和平整度，导致面内气泡的产生的问题。
可选的，承载面的突出区域具备粘性，这样承载面的平面区域具有一定的粘性，可以更好的固定柔性显示面板，粘性低，轻微的剥离力即可剥离。
可选的，如图1所示，承载面的突出区域为平面，其他部分为曲面，该种设置方式可以更好的兼容光活性聚合物层的形变。
可选的，如图1以及图3所示，所述抚平构件14包括滚轮，所述滚轮的半径R小于所述曲面玻璃边缘曲面的最小曲率半径r，保证边缘处的贴合品质。
可选的，所述滚轮的表面部分采用柔性硅胶材料形成，这样既能保护材料层不受损伤，同样能保证贴合过程中的压力均匀的施加在材料层上。
可选的，所述光活性聚合物层包括碳纳米材料层和热响应物质层，所述热响应物质层设置在所述柔性显示面板与所述碳纳米材料层之间。
可选的，如图1所示，所述光源的发光方向朝向所述第二固定构件的固定面。
光活性聚合物Bending Actuator是一种由碳纳米材料，如SWNTs（Single-walled Nanotube）和石墨烯等，和热响应物质，如聚碳酸酯和水凝胶等构成的双层结构。
如图4所示，由于SWNTs等吸收光能转化为热能的效率非常高，但是热膨胀系数却很低，而当聚合物层吸收了热能之后会发生较大的变形，因此会产生弯曲的现象；用公式表示即为：
αtop - αbottom ≠ 0。
这种材料的光响应时间非常快，从不弯曲到最大弯曲角度的时间约为0.7 s，当光照的强度越大，Bending的角度越大，控制光的强度就能控制Bending角度。
基于该光活性聚合物，现结合图5至10对本实施例进行进一步说明，如图10所示，本发明提供的曲面屏贴合方法包括以下步骤：
S101：通过吸附基台吸附曲面玻璃；
如图5所示，吸附基台12根据曲面玻璃a的曲面加工而成，用于承载曲面玻璃a，曲面玻璃a的边缘弯曲，采用卡位固定等方式将曲面玻璃a固定在吸附基台对应位置。
S102：通过承载基台承载柔性显示面板；
柔性显示面板b的非发光侧表面设置有光活性聚合物层c，承载基台11包括一承载面，所述承载面包括至少一突出区域。如图5所示，承载基台11承载柔性显示面板b。
S103：形变构件控制光源，使光活性聚合物层接受光照后产生形变，进而使柔性显示面板弯曲；
本步骤通过激活光源，从所述柔性显示面板b没有设置光活性聚合物层的表面向所述承载面照射实现。
如图6所示，光活性聚合物层c带动柔性显示面板b，光活性聚合物层c与承载面完全接触。
在本步骤之后，为了避免气泡，可以将贴合装置内抽成真空状态。
S104：承载基台与所述吸附基台相对移动，将弯曲的柔性显示面板与曲面玻璃贴合；
如图7所示，通过机构带动承载基台11移动，进而将所述柔性显示面板b的凸起与所述曲面玻璃a贴合，此时承载基台11解除吸附，但柔性显示面板b在光活性聚合物层c的牵引下仍然弯曲，然后移开承载基台11。
S105：通过抚平构件，将柔性显示面板贴附于曲面玻璃表面；
可选的，通过抚平构件在所述光活性聚合物层的表面，以所述柔性显示面板的凸起为起点，向所述柔性显示面板的边缘压制，将所述柔性显示面板与所述曲面玻璃贴合；
如图8所示，使用滚轮，在光活性聚合物层c上向两端滚动贴附，使柔性显示面板b由中间向两端与曲面玻璃a贴合，待贴合完成后，撤去真空。
S106：去除所述光活性聚合物层。
如图9所示，在贴合完成后，去除光活性聚合物层c。
本实施例利用一种光活性聚合物，这种聚合物在光照的条件下能自动弯曲，通过控制光照时间来控制聚合物的形变量。将这种聚合物薄膜贴附在对应材料层下表面，在特定光照条件下使得材料层发生弯曲，这样既避免了材料层边缘的损伤也使材料层的弯曲程度得以控制。同时通过分段式贴合，达到最大程度的控制边缘气泡的产生。
根据上述实施例可知：
本发明通过在柔性显示面板表面
Figure 51c3
制光活性聚合物层，之后光活性聚合物层在所述形变构件中光源的控制下，带动所述柔性显示面板向所述承载面弯曲，形成凸起，然后承载基台与所述吸附基台相对移动，将弯曲的柔性显示面板的凸起与所述曲面玻璃贴合，最后所述抚平构件在所述光活性聚合物层的表面，以所述柔性显示面板的凸起为起点，向所述柔性显示面板的边缘压制，将所述柔性显示面板与所述曲面玻璃贴合；相较于现有技术中CG与Panel的接触是中间平面部分与边缘曲面部分同时接触，本发明通过光活性聚合物层引导柔性显示面板弯曲形成凸起，将所述柔性显示面板的凸起与所述曲面玻璃贴合之后，以柔性显示面板的凸起为起点、在光活性聚合物层上向边缘侧压制，可以有效的将气泡向边缘处排出，解决了现有  3D贴合技术中因为CG与Panel中间平面部分与边缘曲面部分同时接触贴合导致气泡难以向边缘排出的技术问题，提供了产品良率。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种曲面屏贴合装置，用于将柔性显示面板与曲面玻璃相贴合生成曲面屏，其包括承载基台、吸附基台、形变构件以及抚平构件，其中，
    所述承载基台用于承载所述柔性显示面板；其中，所述柔性显示面板的非发光侧表面设置有光活性聚合物层；所述承载基台包括一呈隆起状的承载面；
    所述吸附基台与所述承载基台可相对移动设置，用于吸附所述曲面玻璃；
    所述形变构件包括光源，用于使所述光活性聚合物层接受光照后产生形变，进而使所述柔性显示面板弯曲；以及，
    所述抚平构件用于将所述柔性显示面板贴附于所述曲面玻璃表面。
  2. 根据权利要求1所述的曲面屏贴合装置，其中所述承载基台还设置有吸附孔，所述吸附孔设置在所述承载面上。
  3. 根据权利要求1所述的曲面屏贴合装置，其中所述承载面的突出区域为平面，其他部分为曲面。
  4. 根据权利要求1所述的曲面屏贴合装置，其中所述承载面的突出区域具备粘性。
  5. 根据权利要求1所述的曲面屏贴合装置，其中所述抚平构件包括滚轮。
  6. 根据权利要求5所述的曲面屏贴合装置，其中所述滚轮的半径小于所述曲面玻璃边缘曲面的最小曲率半径。
  7. 根据权利要求5所述的曲面屏贴合装置，其中所述滚轮的表面部分采用柔性硅胶材料形成。
  8. 根据权利要求1所述的曲面屏贴合装置，其中所述承载基台采用硬硅胶材料形成。
  9. 根据权利要求1所述的曲面屏贴合装置，其中所述光源的发光方向朝向所述承载面。
  10. 根据权利要求1所述的曲面屏贴合装置，其中所述光活性聚合物层包括碳纳米材料层和热响应物质层，所述热响应物质层设置在所述柔性显示面板与所述碳纳米材料层之间。
  11. 根据权利要求1所述的曲面屏贴合装置，其中所述曲面屏贴合装置还包括去除构件，用于去除所述光活性聚合物层。
  12. 一种曲面屏贴合方法，其使用权利要求1所述的曲面屏贴合装置，包括：
    通过吸附基台吸附曲面玻璃；
    通过承载基台承载柔性显示面板；所述柔性显示面板的非发光侧表面设置有光活性聚合物层；所述承载基台包括一呈隆起状的承载面；
    形变构件控制光源，使所述光活性聚合物层接受光照后产生形变，进而使所述柔性显示面板弯曲；
    所述承载基台与所述吸附基台相对移动，将弯曲的柔性显示面板与所述曲面玻璃贴合；
    通过抚平构件，将所述柔性显示面板贴附于所述曲面玻璃表面。
  13. 根据权利要求12所述的曲面屏贴合方法，其中所述通过吸附基台吸附曲面玻璃的步骤包括：
    采用卡位固定方式将所述曲面玻璃固定在所述吸附基台。
  14. 根据权利要求12所述的曲面屏贴合方法，其中所述形变构件控制光源，使所述光活性聚合物层接受光照后产生形变的步骤包括：
    激活光源；
    从所述柔性显示面板没有设置光活性聚合物层的表面向所述承载面照射。
  15. 根据权利要求12所述的曲面屏贴合方法，其中所述承载基台与所述吸附基台相对移动，将弯曲的柔性显示面板与所述曲面玻璃贴合的步骤包括：
    带动所述承载基台移动，将所述柔性显示面板的凸起与所述曲面玻璃贴合；
    所述承载基台解除吸附，并移开。
  16. 根据权利要求12所述的曲面屏贴合方法，其中所述通过抚平构件，将所述柔性显示面板贴附于所述曲面玻璃表面的步骤包括：
    通过所述抚平构件，在所述光活性聚合物层的表面，以所述柔性显示面板的凸起为起点，向所述柔性显示面板的边缘压制，将所述柔性显示面板与所述曲面玻璃贴合。
  17. 根据权利要求12所述的曲面屏贴合方法，其中所述通过所述抚平构件，在所述光活性聚合物层的表面，以所述柔性显示面板的凸起为起点，向所述柔性显示面板的边缘压制的步骤包括：
    使用滚轮，在所述光活性聚合物层上向两端滚动贴附，使所述柔性显示面板由中间向两端与所述曲面玻璃贴合。
  18. 根据权利要求12所述的曲面屏贴合方法，其中所述曲面屏贴合方法在所述形变构件控制光源，使所述光活性聚合物层接受光照后产生形变的步骤包括：
    将所述曲面屏贴合装置内抽成真空状态。
  19. 根据权利要求18所述的曲面屏贴合方法，其中所述曲面屏贴合方法在所述通过抚平构件，将所述柔性显示面板贴附于所述曲面玻璃表面的步骤包括：
    撤去得到曲面屏贴合装置的真空状态。
  20. 根据权利要求12所述的曲面屏贴合方法，其中所述曲面屏贴合方法在所述通过抚平构件，将所述柔性显示面板贴附于所述曲面玻璃表面的步骤包括：
    去除所述光活性聚合物层。
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