WO2019056574A1 - 一种柔性显示面板及其goa区域的弯折制备方法 - Google Patents

一种柔性显示面板及其goa区域的弯折制备方法 Download PDF

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Publication number
WO2019056574A1
WO2019056574A1 PCT/CN2017/113526 CN2017113526W WO2019056574A1 WO 2019056574 A1 WO2019056574 A1 WO 2019056574A1 CN 2017113526 W CN2017113526 W CN 2017113526W WO 2019056574 A1 WO2019056574 A1 WO 2019056574A1
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goa
display panel
flexible display
bendable
region
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PCT/CN2017/113526
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English (en)
French (fr)
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蒋国强
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武汉华星光电技术有限公司
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Priority to US15/745,117 priority Critical patent/US10756125B2/en
Publication of WO2019056574A1 publication Critical patent/WO2019056574A1/zh

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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/1259—Multistep manufacturing methods
    • H01L27/1262—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/1218—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or structure of the substrate
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • the present invention relates to the field of display panel manufacturing, and in particular to a flexible display panel and a method for preparing the same for the GOA region.
  • the process of bending and attaching the flexible OLED GOA area to the back side to achieve long-screen full-screen display has certain technical defects.
  • the GOA area is very narrow (about 5 mm) and the bending device is used for vacuum.
  • the adsorption process is difficult to ensure the stability of the bend.
  • the surface pressing used in the existing preparation method is also difficult to ensure the attachment effect, which is likely to cause the risk of fragmentation.
  • the technical problem to be solved by the present invention is to provide a flexible display panel and a bending preparation method thereof for the GOA region, which improves the stability of the GOA bending and the reliability of the surface pressing, and improves the assembly efficiency and the yield of the product.
  • an embodiment of the present invention provides a method for preparing a bending of a GOA region of a flexible display panel.
  • the flexible display panel includes: a substrate and a GOA bendable region disposed at an edge of the substrate, wherein the following steps are included : affixing the inflatable component to the bendable area of the GOA, and driving the inflatable component to rotate and bend the GOA bendable area to the back surface of the substrate by the servo motor; The inflatable component is inflated to attach the GOA bendable region to the back surface of the substrate.
  • the GOA is attached to the inflatable component, and the servo motor uses the bending line as the rotating shaft to drive the inflatable component to rotate and bend; when bent to a certain position, the airbag inflates and expands to attach the GOA to the back of the product.
  • the inflatable component is an air bag.
  • the airbag also presses the GOA curved surface of the GOA bendable area.
  • the inflatable component is an air bag.
  • the airbag also presses the GOA curved surface of the GOA bendable area.
  • the present invention also discloses a method for preparing a bending of a GOA region of a flexible display panel, comprising the steps of: attaching an airbag to a GOA bendable region of a flexible display panel, and a bending device is fastened
  • the airbag on the airbag rotates and bends the GOA bendable area; the airbag inflates and expands the GOA bendable area to perform GOA curved surface pressing.
  • the present invention also discloses a flexible display panel, wherein the flexible display panel comprises: a substrate and a GOA bendable region disposed at an edge of the substrate, and the GOA bendable region is press-fitted to the back surface of the substrate on.
  • the inflatable component is pasted in the bendable area of the GOA, and the bendable area of the GOA is bent to the back surface of the substrate, and the inflatable component is inflated and expanded to press the GOA bendable region on the back surface of the substrate to enhance the GOA bend. Stability and reliability of surface pressing.
  • FIG. 1 is a schematic structural view of a flexible display panel according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the effect of attaching the inflatable component of the GOA region of the flexible display panel to the bendable region of the GOA according to the embodiment of the present invention.
  • FIG 3 is a schematic view showing the effect of bending a GOA bendable region to a back surface of a substrate in a method for preparing a GOA region of a flexible display panel according to an embodiment of the present invention.
  • FIG. 4 is a schematic view showing the effect of inflating and expanding the GOA bendable region on the back surface of the substrate by inflating the inflatable component of the GOA region of the flexible display panel according to the embodiment of the present invention.
  • FIG. 1 is a first embodiment of a method for preparing a bending of a GOA region of a flexible display panel according to the present invention.
  • the flexible display panel 1 of the present embodiment includes a substrate 11 and a GOA bendable region 11a disposed at the edge of the substrate 11.
  • the GOA bendable region 11a in this embodiment is the opposite long sides of the substrate 11. Narrow strips.
  • the position of the GOA bendable region 11a can be adjusted according to the type of the display panel.
  • one short side of the substrate 11 between the two GOA bendable regions 11a is set as a PAD-bending region 11b, which can be bent and packaged after the two GOA bendable regions 11a are bent and packaged. Connected to the FPC board of the flexible display panel.
  • the method for preparing the bending of the GOA region of the flexible display panel in the embodiment includes the following steps:
  • the inflatable component 2 is pasted in the position of the GOA bendable region 11a, and the pneumatic component is rotated by the servo motor to bend the GOA bendable region 11a to the back surface 1t of the substrate 1; the inflatable component 22 is inflated to press the GOA bendable region 11a.
  • the sticker is attached to the back surface 1t of the substrate.
  • the inflatable component 2 includes a bending device 21 and an inflatable component 22 fastened to the bending device 21.
  • the bending device 21 can interlock the inflatable assembly 22 for rotational bending.
  • the GOA is attached to the inflatable component, and the servo motor uses the bending line as a rotating shaft to drive the inflatable component to rotate and bend; when bent to a certain position, the airbag inflates and expands to attach the GOA to the back of the product.
  • the bending device 21 has a certain hardness, and can rotate the air-inflating component 22 with a center point as a shaft and the GOA bendable region 11a connected to the air-inflating component 22 to perform different rotations, thereby realizing the GOA bendable region. 11a bend.
  • one side of the inflatable component 22 has a certain viscosity and can be adhered and fastened to the position of the GOA bendable region 11a.
  • the inflatable component 22 also has the function of inflating.
  • the inflatable component 22 in this embodiment is an air bag made of a soft and high strength material.
  • the airbag 22 is inflated from the inner air hole, and when the air pressure value in the airbag 22 reaches a certain value, the inflation is stopped, and the pressure is maintained for about 2 seconds (at this time, the GOA is attached to the back of the product). In this way, when the airbag is inflated and expanded, the curved surface of the GOA bendable region 11a can be pressed, and after being bent, it can be pressed against the back surface 1t of the substrate.
  • the inflatable member has no effect of being detached from the GOA bendable region 11a during the bending; in addition, in the bending device After the 21 interlocking inflatable component 22 and the GOA bendable region 11a connected to the inflatable component 22 are rotated to the corresponding positions of the back surface 1t of the substrate, the curved surface can be pressed, thereby ensuring uniform pressure increase, thereby ensuring the adhesion effect.
  • the airbag is pasted on the position of the GOA region 11a of the flexible display panel, and the two airbags having the same structure and being symmetrical can be respectively pasted on the airbag.
  • the bending device 21 interlocks the airbag to rotate and bend the GOA bendable region; the airbag inflates and expands the GOA bendable region 11a to perform GOA curved surface pressing.
  • the present invention also discloses a flexible display panel prepared by the above-described bending preparation method of the flexible display panel GOA region.
  • the flexible display panel prepared by the preparation method further reduces the cost on the basis of streamlining the process, improving the assembly efficiency and the yield rate.
  • the inflatable component is pasted in the bendable area of the GOA, and the bendable area of the GOA is bent to the back surface of the substrate, and the inflatable component is inflated and expanded to press the GOA bendable region on the back surface of the substrate to enhance the GOA bend. Stability and reliability of surface pressing.

Abstract

一种柔性显示面板（1）及其GOA区域的弯折制备方法。柔性显示面板（1）包括基板（11）和设置在基板（11）边缘的GOA可折弯区域（11a）。制备方法包括以下步骤：将充气组件（2）粘贴在GOA可折弯区域（11a），通过伺服马达带动充气组件（2）旋转折弯GOA可折弯区域（11a）至基板（11）的背表面（1t）；充气组件（2）充气膨胀将GOA可折弯区域（11a）压贴连接在基板（11）的背表面（1t）上。柔性显示面板（1）及其GOA区域的弯折制备方法能提升GOA折弯的稳定性及曲面压贴的可靠性，提升装配效率和产品的良率。

Description

一种柔性显示面板及其GOA区域的弯折制备方法
本申请要求于2017年9月19日提交中国专利局、申请号为201710847226.9、发明名称为“一种柔性显示面板及其GOA区域的弯折制备方法”的中国专利申请的优先权，上述专利的全部内容通过引用结合在本申请中。
技术领域
本发明涉及显示面板制造领域，尤其涉及一种柔性显示面板及其GOA区域的弯折制备方法。
背景技术
随着柔性OLED显示技术的不断成熟，柔性显示产品的种类也不断多样化。现阶段，无边框显示产品已成为市场主流，因此，其工艺制程要求也越来越高，其中，GOA (Gate Driver on Array，陣列基板行驱动)折弯技术是实现无边框重要技术之一。
现有的GOA Bending：将柔性OLED GOA区域弯折并贴附于背面，达到长边全屏显示效果的工艺还存在一定的技术缺陷，例如：GOA区域很窄(约5mm)采用折弯装置进行真空吸附的工艺很难保证弯折的稳定性。此外，现有制备方法所采用的曲面压贴也很难保证贴附效果，容易造成破片风险。
发明内容
本发明所要解决的技术问题在于，提供一种柔性显示面板及其GOA区域的弯折制备方法，提升GOA折弯的稳定性及曲面压贴的可靠性，提升装配效率和产品的良率。
为了解决上述技术问题，本发明的实施例提供了一种柔性显示面板的GOA区域的弯折制备方法，柔性显示面板包括：基板和设置在基板边缘的GOA可折弯区域，其中，包括以下步骤：将充气组件粘贴在GOA可折弯区域，通过伺服马达带动充气组件旋转折弯GOA可折弯区域至基板的背表面； 充气组件充气膨胀将GOA可折弯区域压贴连接在基板的背表面上。
其中，GOA贴附在充气组件上，伺服马达以弯折线为旋转轴，带动充气组件旋转弯折；当弯折到一定位置以后，气囊充气膨胀将GOA贴附于产品背面。
其中，充气组件为一气囊。
其中，还包括：气囊将GOA可折弯区域进行GOA曲面压贴。
其中，充气组件为一气囊。
其中，还包括：气囊将GOA可折弯区域进行GOA曲面压贴。
为解决上述技术问题，本发明还公开了一种柔性显示面板的GOA区域的弯折制备方法，包括以下步骤：一气囊粘贴在柔性显示面板的GOA可折弯区域，一折弯装置紧固在气囊上联动气囊旋转折弯GOA可折弯区域；气囊充气膨胀将GOA可折弯区域进行GOA曲面压贴。
为解决上述技术问题，本发明还公开了一种柔性显示面板，其中，柔性显示面板包括：基板和设置在基板边缘的GOA可折弯区域，GOA可折弯区域压贴连接在基板的背表面上。
实施本发明所提供的柔性显示面板及其GOA区域的弯折制备方法，具有如下有益效果：
第一、充气组件粘贴在GOA可折弯区域，折弯GOA可折弯区域至基板的背表面，充气组件充气膨胀将GOA可折弯区域压贴连接在基板的背表面上，提升GOA折弯的稳定性及曲面压贴的可靠性。
第二、工艺精简，提升装配效率和良品率的基础上，进一步降低成本。
附图说明
为了更清楚地说明本发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地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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是本发明实施例柔性显示面板的结构示意图。
图2是本发明实施例柔性显示面板的GOA区域的弯折制备方法的充气组件粘贴在GOA可折弯区域的效果示意图。
图3是本发明实施例柔性显示面板的GOA区域的弯折制备方法的折弯GOA可折弯区域至基板背表面的效果示意图。
图4是本发明实施例柔性显示面板的GOA区域的弯折制备方法的充气组件充气膨胀将GOA可折弯区域压贴连接在基板背表面上的效果示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
参见图1-图4所示，为本发明柔性显示面板GOA区域的弯折制备方法的实施例一。
本实施例中进行作业的柔性显示面板1包括：基板11和设置在基板11边缘的GOA可折弯区域11a，本实施例中的GOA可折弯区域11a为基板11相对的两长边，呈狭长条状。其它实施方式中可以根据显示面板的类型调整GOA可折弯区域11a的位置。本实施例中两条GOA可折弯区域11a之间的基板11的一条短边设为PAD-bending区域11b，其可在两条GOA可折弯区域11a实现折弯封装后，通过折弯连接与柔性显示面板的FPC电路板连接。
进一步的，本实施例中柔性显示面板GOA区域的弯折制备方法包括以下步骤：
将充气组件2粘贴在GOA可折弯区域11a位置，通过伺服马达带动充气组件旋转折弯GOA可折弯区域11a至基板1的背表面1t；充气组件22充气膨胀将GOA可折弯区域11a压贴连接在基板的背表面1t上。
具体实施时，充气组件2包括：折弯装置21和紧固连接在折弯装置21上的充气组件22。实施时，折弯装置21能够联动充气组件22进行旋转折弯。具体地，GOA贴附在充气组件上，伺服马达以弯折线为旋转轴，带动充气组件旋转弯折；当弯折到一定位置以后，气囊充气膨胀将GOA贴附于产品背面。本实施例中，折弯装置21具有一定的硬度，能够以一中心点为轴心联动充气组件22以及与充气组件22相连的GOA可折弯区域11a进行不同转动，进而实现GOA可折弯区域11a的折弯。
进一步的，充气组件22的一侧具有一定的粘性，能够粘贴紧固在GOA可折弯区域11a的位置。此外，充气组件22还具有充气膨胀的功能。本实施例中的充气组件22为一气囊，该气囊由软性且高强度的材料制成。
具体实施时，从内侧气孔向气囊22内充气，当气囊22内的气压值达到一定数值后停止充气，保压约2秒钟(此时GOA已完好贴附与产品背面)。如此，当气囊充气膨胀后能够实现对GOA可折弯区域11a的曲面挤压，使其折弯后能够压贴在基板的背表面1t。
通过在折弯装置21上设置能够具有粘贴功能的充气组件22起到如下作用：具有粘性的充气组件在实施折弯的过程中不会与GOA可折弯区域11a脱离；此外，在折弯装置21联动充气组件22以及与充气组件22相连的GOA可折弯区域11a转动至基板的背表面1t相应位置后，能够进行曲面压贴，从而保证压力均匀递增，从而保证粘附效果。
本实施例中的柔性显示面板GOA区域的弯折制备方法在具体实施时，首先，将气囊粘贴在柔性显示面板的GOA区域11a的位置，可以使用具有相同结构且对称的两个气囊分别粘贴在基板11相对两长边的GOA区域11a的位置。紧接着，折弯装置21联动气囊旋转折弯GOA可折弯区域；气囊充气膨胀将GOA可折弯区域11a进行GOA曲面压贴。
进一步的，本发明还公开了一种由上述的柔性显示面板GOA区域的弯折制备方法制备的柔性显示面板。由该制备方法制备的柔性显示面板，工艺精简，提升装配效率和良品率的基础上，进一步降低了成本。
实施本发明所提供的柔性显示面板及其GOA区域的弯折制备方法，具有如下有益效果：
第一、充气组件粘贴在GOA可折弯区域，折弯GOA可折弯区域至基板的背表面，充气组件充气膨胀将GOA可折弯区域压贴连接在基板的背表面上，提升GOA折弯的稳定性及曲面压贴的可靠性。
第二、工艺精简，提升装配效率和良品率的基础上，进一步降低成本。

Claims (8)

  1. 一种柔性显示面板的GOA区域的弯折制备方法，所述柔性显示面板包括：基板和设置在所述基板边缘的GOA可折弯区域，其中，包括以下步骤：
    将充气组件粘贴在所述GOA可折弯区域，通过伺服马达带动充气组件旋转折弯所述GOA可折弯区域至所述基板的背表面；
    充气组件充气膨胀将所述GOA可折弯区域压贴连接在所述基板的背表面上。
  2. 如权利要求1所述的柔性显示面板的GOA区域的弯折制备方法，其中，GOA贴附在充气组件上，伺服马达以弯折线为旋转轴，带动充气组件旋转弯折；
    当弯折到一定位置以后，气囊充气膨胀将GOA贴附于产品背面。
  3. 如权利要求1或所述的柔性显示面板的GOA区域的弯折制备方法，其中，所述充气组件为一气囊。
  4. 如权利要求3所述的柔性显示面板的GOA区域的弯折制备方法，其中，还包括：所述气囊将所述GOA可折弯区域进行GOA曲面压贴。
  5. 如权利要求2所述的柔性显示面板的GOA区域的弯折制备方法，其中，所述充气组件为一气囊。
  6. 如权利要求5所述的柔性显示面板的GOA区域的弯折制备方法，其中，还包括：所述气囊将所述GOA可折弯区域进行GOA曲面压贴。
  7. 一种柔性显示面板的GOA区域的弯折制备方法，其中，包括以下步骤：
    一气囊粘贴在柔性显示面板的GOA可折弯区域，一折弯装置紧固在所述气囊上联动所述气囊旋转折弯所述GOA可折弯区域；
    所述气囊充气膨胀将所述GOA可折弯区域进行GOA曲面压贴。
  8. 一种柔性显示面板，其中，所述柔性显示面板包括：基板和设置在所述基板边缘的GOA可折弯区域，所述GOA可折弯区域曲面压贴连接在 所述基板的背表面上。
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