WO2019114057A1 - 柔性显示器及其制作方法、显示装置 - Google Patents

柔性显示器及其制作方法、显示装置 Download PDF

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Publication number
WO2019114057A1
WO2019114057A1 PCT/CN2018/071302 CN2018071302W WO2019114057A1 WO 2019114057 A1 WO2019114057 A1 WO 2019114057A1 CN 2018071302 W CN2018071302 W CN 2018071302W WO 2019114057 A1 WO2019114057 A1 WO 2019114057A1
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Prior art keywords
area
display screen
display
flexible display
bending
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PCT/CN2018/071302
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English (en)
French (fr)
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陈继峯
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武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US15/951,990 priority Critical patent/US20190182969A1/en
Publication of WO2019114057A1 publication Critical patent/WO2019114057A1/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

Definitions

  • the present invention relates to a display and a method of fabricating the same, and more particularly to a flexible display and a method of fabricating the same, and a display device having the flexible display.
  • the display generally includes a backboard, a middle frame, a display component, and a cover.
  • the display component is usually attached to the cover.
  • the display component is usually pasted on the backboard such that a gap is formed between the display component and the cover, so that the display component and the cover are stressed when the display is folded. Do not pass each other.
  • the above structure also reduces the light extraction efficiency of the display, thereby affecting the optical quality of the display.
  • the present invention provides a flexible display to effectively solve the above technical problems.
  • a flexible display is divided into at least two non-bending regions and a bending region connecting adjacent two non-bending regions, the flexible display comprising a back plate, a display screen and a cover plate which are sequentially stacked, the back a peripheral portion of the plate is connected to the peripheral portion of the cover plate by a sealant and a sealed receiving cavity is formed between the back plate and the cover plate, and the display screen is disposed on the back plate and is received by the cover plate An optically transparent oil is disposed between the area corresponding to the bending zone and the cover plate in the receiving cavity.
  • the display screen is provided with an optically transparent oil between the region corresponding to the bending zone and the sealant, and the fluidity of the optically transparent oil is favorable for heat dissipation of the flexible display to avoid the flexibility.
  • the display is partially overheated.
  • the display screen is provided with optically transparent oil between the area corresponding to the non-bending area and the cover plate and the area of the display screen corresponding to the non-bending area and the sealant.
  • an optically transparent oil is disposed between the area of the display screen corresponding to the bending zone and the backboard.
  • a manufacturing method of a flexible display the flexible display is divided into at least two non-bending regions and a bending region connecting two adjacent non-bending regions, and the manufacturing method of the flexible display comprises the following steps:
  • the display screen including a non-folding area corresponding to the non-bending area, and a folding area corresponding to the bending area;
  • the step fills the area of the accommodating groove corresponding to the folding area with the optically transparent oil so that the optically transparent oil covers at least the folding area", specifically filling the optically transparent oil to cover the entire display screen.
  • the step fills at least the area of the accommodating groove corresponding to the folding area with an optically transparent oil so that the optically transparent oil covers at least the folding area
  • an optically transparent adhesive to at least a portion of the non-folding area of the accommodating groove to cover the corresponding non-folding area; and the area corresponding to the folding area in the accommodating groove
  • the accommodating groove is filled with an optically transparent oil corresponding to the uncoated area where the optically clear adhesive is not coated, so that the optically transparent oil covers the folding area and the unfolded area is not covered by the optical transparent adhesive Covered area.
  • a manufacturing method of a flexible display the flexible display is divided into at least two non-bending regions and a bending region connecting two adjacent non-bending regions, and the manufacturing method of the flexible display comprises the following steps:
  • a display device comprising a flexible display as described above.
  • the display screen is provided with an optically transparent oil at least corresponding to the area of the bending zone and the cover plate, so that the flexible display is bent, the display screen and the display
  • the stresses between the cover plates are not mutually transmitted, and the display screen, the cover plate and the optical transparent oil respectively have a neutral surface, so that the position of the neutral surface of the display screen does not change after forming the flexible display.
  • the damage caused by the change of the neutral position of the display screen when the flexible display is folded is avoided.
  • the display screen is provided with optically transparent oil at least corresponding to the area of the bending zone and the cover plate, and the total reflectance of the light on each interface is also reduced, thereby improving the light output of the display screen. effectiveness.
  • FIG. 1 is a schematic structural view of a flexible display according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of a flexible display in accordance with an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a flexible display in accordance with another embodiment of the present invention.
  • FIG. 4 is a flow chart of a method of fabricating a flexible display in accordance with an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a back panel bonded with a display screen used in the method of fabricating the flexible display shown in FIG. 4.
  • FIG. 6 is a cross-sectional view showing the formation of a sealant and a receiving groove on the back plate shown in FIG. 5.
  • Fig. 7 is a schematic cross-sectional view showing the filling of the optically transparent oil in the accommodating groove shown in Fig. 6.
  • FIG. 8 is a flow chart of a method of fabricating a flexible display according to another embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of a back sheet with a sealant and a receiving groove used in the method of manufacturing the flexible display shown in FIG.
  • Fig. 10 is a schematic cross-sectional view showing the filling of the optically transparent oil in the accommodating groove shown in Fig. 9.
  • Figure 11 is a display device with a flexible display in accordance with an embodiment of the present invention.
  • the flexible display 100 provided by the present technical solution, the manufacturing method thereof, and the display device 200 having the flexible display 100 will be further described in detail below with reference to FIGS. 1 to 11 and embodiments.
  • a flexible display 100 includes a back sheet 10 , a display screen 20 , and a cover plate 30 which are sequentially stacked.
  • the peripheral portion of the back plate 10 and the peripheral portion of the cover plate 30 are connected by a sealant 40 and form a sealed receiving cavity 50 between the back plate 10 and the cover plate 30.
  • the display screen 20 is received in the receiving cavity 50.
  • the sealant 40 may be an ultraviolet curable adhesive or a thermosetting adhesive.
  • the flexible display 100 is divided into at least two non-bending regions 101 and a bending region 103 connecting adjacent two non-bending regions 101.
  • An optically transparent oil 60 is accommodated between the region of the display portion 20 corresponding to the bending region 103 and the cover plate 30.
  • An optically transparent oil (not shown) and/or an Optically Clear Adhesive (not shown) may be disposed between the area of the display screen 20 corresponding to the non-bending area 101 and the cover plate 30. .
  • an optically transparent oil 60 can be accommodated between the region of the display screen 20 corresponding to the bending region 103 and the sealant 40.
  • the display screen 20 is attached to the backboard 10. In other embodiments, referring to FIG. 3 , the display screen 20 is spaced apart from the back plate 10 , and the display screen 20 is disposed between the area corresponding to the bending area 103 and the back plate 10 . Optically clear oil. Similarly, the transparent display oil can also be accommodated between the area of the display screen 20 corresponding to the non-bending area 103 and the back sheet 10. The fluidity of the optically clear oil 60 facilitates the conduction and dissipation of heat from the flexible display 100 to avoid local overheating of the flexible display 100.
  • the display panel 20 includes a substrate 21, a display panel 22, a touch panel 23, and a polarizer 24 which are sequentially stacked in a stacking direction of the back sheet 10 and the cover 30.
  • the display panel 22 can be a liquid crystal display panel, an OLED display panel, or the like.
  • a preferred embodiment of the present invention further provides a method for fabricating a flexible display 100a.
  • the flexible display 100a is divided into at least two non-bending regions 101 and adjacent to each other.
  • the bending area 103 of the two non-bending areas 101, the manufacturing method of the flexible display 100a comprises the following steps:
  • Step S11 referring to FIG. 5, a backing plate 10 to which the display screen 20 is bonded is provided.
  • the display screen 20 is divided into a non-folding area (not shown) corresponding to the non-bending area 101, and a folding area (not shown) corresponding to the bending area 103.
  • the display screen 20 includes a substrate 21, a display panel 22, a touch panel 23, and a polarizer 24 which are sequentially stacked.
  • the substrate 21 is bonded to the back sheet 10, and the display panel 22 is formed on a side of the substrate 21 facing away from the back sheet 10.
  • step S12 referring to FIG. 6, an uncured or semi-cured sealant 40 is formed along the peripheral edge of the backing plate 10 to form a receiving portion of the sealant 40 and the backing plate 10.
  • the slot 70 is configured to receive the display screen 20, and the height of the sealant 40 is greater than the height of the display screen 20.
  • the sealant 40 may be an ultraviolet curable adhesive or a thermosetting adhesive.
  • Step S13 referring to FIG. 7, at least the region of the accommodating groove 70 corresponding to the folding area is filled with the optically transparent oil 60 such that the optically transparent oil 60 covers at least the folding area.
  • the accommodating groove 70 may be coated with an optically transparent adhesive corresponding to at least a part of the unfolded area, so that the optical transparent adhesive covers the corresponding unfolded area; and corresponding to the accommodating groove 70
  • the area of the folding area and the accommodating groove 70 are filled with the optical transparent oil 60 corresponding to the uncoated area where the optical transparent adhesive is not applied, so that the optically transparent oil 60 covers the folding area and is not covered by An unfolded area covered by an optically clear adhesive.
  • the accommodating groove 70 may be filled with the optically transparent oil 60 to cover the entire display screen 20.
  • the accommodating groove 70 is filled with the optically transparent oil 60 to cover the entire display screen 20.
  • Step S14 referring to FIG. 2, a cover plate 30 is covered on the side of the sealant 40 away from the back plate 10, and the sealant 40 is cured to seal the receiving groove 70 to form a receiving cavity 50. Thereby, the flexible display 100a is produced.
  • the backing plate 10 is sealed in the accommodating groove 70 to form a sealed receiving cavity 50 in a vacuum state, thereby preventing air bubbles from being generated between the cover plate 30 and the optically transparent oil 60, and the A negative pressure is generated in the receiving chamber 50, so that the connection between the backing plate 10, the cover plate 30 and the sealant 40 is more tight, thereby facilitating the prevention of leakage of the optically transparent oil 60.
  • another preferred embodiment of the present invention further provides a method for manufacturing a flexible display 100b.
  • the flexible display 100b is divided into at least two non-bending areas 101 and connections.
  • the bending area 103 of the adjacent two non-bending areas 101, the manufacturing method of the flexible display 100b comprises the following steps:
  • Step 31 referring to FIG. 9, a back sheet 10 is provided, and an uncured or semi-cured sealant 40 is formed along the peripheral edge of the back sheet 10 to make the sealant 40 and the back sheet. 10 is formed to form a receiving groove 70.
  • Step 32 referring to FIG. 10, the transparent optical oil 60 is filled in the accommodating groove 70, and the display screen 20 having a height smaller than the depth of the accommodating groove 70 is placed to make the entire display screen 20 transparent.
  • the optical oil 60 is coated.
  • the transparent optical oil 60 sufficient to immerse the display screen 20 that is subsequently placed can be directly filled into the accommodating groove 70.
  • a portion of the transparent optical oil may be filled into the accommodating groove 70 so that the subsequently placed display screen 20 and the back plate 10 are separated by a transparent optical oil, and then placed in the display screen 20 and then vacuumed.
  • the transparent optical oil is continued to be filled in such a manner that the transparent optical oil 60 in the accommodating groove 70 covers the entire display screen 20.
  • Step S33 referring to FIG. 3, a cover plate 30 is covered on the side of the sealant 40 away from the back plate 10, and the sealant 40 is cured to seal the receiving groove 70 to form a receiving cavity 50.
  • the flexible display 100a is thus produced.
  • FIG. 11 is a schematic diagram of the display device 200 .
  • the display device 200 includes the above-described flexible display 100 (100a, 100b).
  • the display device 200 can be a mobile phone, a tablet computer, a television, or the like.
  • the display screen 20 is provided with an optically transparent oil 60 at least between the area corresponding to the bending region 103 and the cover plate 30, so that the flexible display 100 ( 100a, 100b) When bending, the stress between the display screen 20 and the cover plate 30 is not mutually transmitted, and the display screen 20, the cover plate 30, and the optically transparent oil 60 respectively have a neutral surface. (Neutral Plane), such that the position of the neutral plane of the display screen 20 does not change after forming the flexible display 100 (100a, 100b), avoiding the display screen 20 when the flexible display 100 (100a, 100b) is folded The damage caused by the change in the neutral position.
  • Neutral Plane such that the position of the neutral plane of the display screen 20 does not change after forming the flexible display 100 (100a, 100b), avoiding the display screen 20 when the flexible display 100 (100a, 100b) is folded The damage caused by the change in the neutral position.
  • the display screen 20 is provided with an optically transparent oil 60 at least between the region corresponding to the bending region 103 and the cover plate 30, which also reduces the total reflectance of light on each interface, thereby improving the The light output efficiency of the display screen 20.
  • an optically clear oil 60 between the backsheet 10 and the display screen 20 can further protect the display screen 20 when the flexible display 100 (100a, 100b) is folded, thereby avoiding the flexible display 100 (100a) , 100b) fails, and facilitates conduction of heat of the flexible display 100 (100a, 100b) to avoid local overheating of the flexible display 100 (100a, 100b).

Abstract

本申请提供一种柔性显示器，划分为至少两个非弯折区及连接相邻两个非弯折区的弯折区，所述柔性显示器包括依次层叠设置的背板、显示屏及盖板，所述背板的周缘区域与所述盖板的周缘区域通过框胶连接并在所述背板与所述盖板之间形成一密封的收容腔，所述显示屏设于所述背板上且容于所述收容腔内，所述显示屏对应所述弯折区的区域与所述盖板之间设有光学透明油。上述柔性显示器在折叠时能够避免因所述显示屏因中性面的改变导致的柔性显示器损伤，且可提高所述显示屏的出光效率。本申请还提供一种柔性显示器的制作方法及一种显示装置。

Description

柔性显示器及其制作方法、显示装置 技术领域
本发明涉及一种显示器及其制作方法，尤其涉及一种柔性显示器及其制作方法、以及具有所述柔性显示器的显示装置。
背景技术
随着科技的日新月异，显示器在人们生活中的应用也越来越广泛。显示器通常包括背板、中框、显示组件及盖板，在传统硬式显示器中，所述显示组件通常粘贴于盖板，然而，此结构应用于目前最有应用潜力可的折叠显示器中时，在显示器折叠时会因所述显示器的中性面偏移而使得所述显示组件部分区域应力过大而受到损伤甚至失效。为了避免上述问题，目前现有技术中通常是将显示组件粘贴于背板，使得所述显示组件与所述盖板间形成空隙，从而显示器折叠时所述显示组件与所述盖板之间应力不相互传递。然而，上述结构也使得所述显示器的出光效率降低，从而影响了所述显示器的光学品质。
发明内容
有鉴于此，本发明提供一种柔性显示器，以有效解决上述技术问题。
另外，还有必要提供一种上述柔性显示器的制作方法，以及具有上述柔性显示器的显示装置。
一种柔性显示器，划分为至少两个非弯折区及连接相邻两个非弯折区的弯折区，所述柔性显示器包括依次层叠设置的背板、显示屏及盖板，所述背板的周缘区域与所述盖板的周缘区域通过框胶连接并在所述背板与所述盖板之间形成一密封的收容腔，所述显示屏设于所述背板上且容于所述收容腔内，所述显示屏对应所述弯折区的区域与所述盖板之间设有光学透明油。
进一步地，所述显示屏对应所述弯折区的区域与所述框胶之间设有光学透明油，所述光学透明油的流动性有利于所述柔性显示器的散热，以避免所述柔性显示器局部过热。
进一步地，所述显示屏对应所述非弯折区的区域与所述盖板之间及所述显示屏对应所述非弯折区的区域与所述框胶之间设有光学透明油。
进一步地，所述显示屏对应所述弯折区的区域与所述背板之间设有光学透明油。
一种柔性显示器的制作方法，所述柔性显示器划分为至少两个非弯折区及连接相邻两个非弯折区的弯折区，所述柔性显示器的制作方法包括以下步骤：
提供一粘结有显示屏的背板，所述显示屏包括与所述非弯折区对应的非折叠区，以及与所述弯折区对应的折叠区；
沿所述背板的周缘区域点胶形成一未固化或半固化的框胶，以使所述框胶与所述背板围设形成一容置槽以容纳所述显示屏，且所述框胶的高度大于所述显示屏的高度；
至少在所述容置槽对应所述折叠区的区域填充光学透明油，以使所述光学透明油至少覆盖所述折叠区；以及
在所述框胶远离所述背板的一侧覆盖一盖板并固化所述框胶，以密封所述容置槽形成一收容腔，从而制得所述柔性显示器。
进一步地，步骤“至少在所述容置槽对应所述折叠区的区域填充光学透明油，以使所述光学透明油至少覆盖所述折叠区”具体为填充光学透明油以覆盖整个显示屏。
进一步地，步骤“至少在所述容置槽对应所述折叠区的区域填充光学透明油，以使所述光学透明油至少覆盖所述折叠区”具体为
在所述容置槽对应所述非折叠区的至少部分区域涂布光学透明胶，以使所述光学透明胶覆盖相应的非折叠区；并在所述容置槽对应所述折叠区的区域及所述容置槽对应所述非折叠区未涂布光学透明胶的区域填充光学透明油，以使所述光学透明油覆盖所述折叠区及所述非折叠区未被所述光学透明胶覆盖的区域。
一种柔性显示器的制作方法，所述柔性显示器划分为至少两个非弯折区及连接相邻两个非弯折区的弯折区，所述柔性显示器的制作方法包括以下步骤：
提供一背板，并沿所述背板的周缘区域点胶形成一未固化或半固化的框胶，以使所述框胶与所述背板围设形成一容置槽；
在所述容置槽内填充透明光学油，并置入高度小于所述容置槽的深度的显示屏以使整个所述显示屏被所述透明光学油包覆；以及
在所述框胶远离所述背板的一侧覆盖一盖板并固化所述框胶，以密封所述容置槽形成一收容腔，从而制得所述柔性显示器。
一种显示装置，其包括如上所述的柔性显示器。
通过本发明的柔性显示器，其所述显示屏至少对应所述弯折区的区域与所述盖板之间设有光学透明油，使得所述柔性显示器在弯折时，所述显示屏与所述盖板之间应力不相互传递，所述显示屏、所述盖板、所述光学透明油分别具有中性面，使得所述显示屏的中性面的位置在形成柔性显示器后不发生变化，避免在柔性显示器折叠时因所述显示屏的中性面位置的改变造成的损伤。并且，所述显示屏至少对应所述弯折区的区域与所述盖板之间设有光学透明油，还降低了光在各介面上的全反射率，从而提高了所述显示屏的出光效率。
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是本发明一实施例的柔性显示器的结构示意图。
图2是本发明一实施例的柔性显示器的剖视示意图。
图3是本发明另一实施例的柔性显示器的剖视示意图。
图4是本发明一实施例的柔性显示器的制作方法的流程图。
图5是图4所示的柔性显示器的制作方法使用的粘结有显示屏的背板的剖视示意图。
图6是在图5所示的背板上形成框胶及容置槽的剖视示意图。
图7是在图6所示的容置槽内填充光学透明油的剖视示意图。
图8是本发明另一实施例的柔性显示器的制作方法的流程图。
图9是图8所示的柔性显示器的制作方法使用的带有框胶及容置槽的背板的剖视示意图。
图10是在图9所示的容置槽内填充光学透明油的剖视示意图。
图11是带有本发明一实施例的柔性显示器的显示装置。
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。
下面将结合附图1～图11及实施方式，对本技术方案提供的柔性显示器100及其制作方法、以及具有所述柔性显示器100的显示装置200作进一步的详细说明。
请参阅图1～图3，本发明一较佳实施方式的柔性显示器100，其包括依次层叠设置的背板10、显示屏20及盖板30。所述背板10的周缘区域及所述盖板30的周缘区域通过框胶40连接并在所述背板10与所述盖板30之间形成一密封的收容腔50。所述显示屏20收容于所述收容腔50中。
本实施方式中，所述框胶40可为紫外光固化型胶或热固化型胶。
所述柔性显示器100划分为至少两个非弯折区101及连接相邻两个非弯折区101的弯折区103。
所述显示屏20对应所述弯折区103的区域与所述盖板30之间容置有光学透明油60(Optically Clear Oil)。所述显示屏20对应所述非弯折区101的区域与所述盖板30之间也可设置光学透明油(图未示)，及/或者光学透明胶(Optically ClearAdhesive)(图未示)。
在本实施方式中，所述显示屏20对应所述弯折区103的区域与所述框胶40之间可容置有光学透明油60。
在本实施方式中，所述显示屏20粘贴于所述背板10。在其他实施方式中，请参阅图3，所述显示屏20与所述背板10间隔设置，所述显示屏20对应所述弯折区103的区域与所述背板10之间容置有光学透明油。同样，所述显示屏20对应所述非弯折区103的区域与所述背板10之间也可容置光学透明油。 所述光学透明油60的流动性有利于所述柔性显示器100的热量的传导及散发，以避免所述柔性显示器100局部过热。
在本实施方式中，所述显示屏20包括沿所述背板10与所述盖板30层叠方向依次层叠设置的基板21、显示面板22、触控面板23以及偏光片24。所说显示面板22可为液晶显示面板、OLED显示面板等。
请参阅图1-图2及图4-图7，本发明较佳实施方式还提供一种柔性显示器100a的制作方法，所述柔性显示器100a划分为至少两个非弯折区101及连接相邻两个非弯折区101的弯折区103，所述柔性显示器100a的制作方法包括以下步骤：
步骤S11，请参阅图5，提供一粘结有显示屏20的背板10。
所述显示屏20划分为所述非弯折区101对应的非折叠区(图未示)，以及与所述弯折区103对应的折叠区(图未示)。
本实施方式中，所述显示屏20包括依次层叠设置的基板21、显示面板22、触控面板23以及偏光片24。所述基板21粘结于所述背板10，所述显示面板22形成于所述基板21背离所述背板10的一侧。
步骤S12，请参阅图6，沿所述背板10的周缘区域点胶形成一未固化或半固化的框胶40，以使所述框胶40与所述背板10围设形成一容置槽70以收容所述显示屏20，且所述框胶40的高度大于所述显示屏20的高度。
本实施方式中，所述框胶40可为紫外光固化型胶或热固化型胶。
步骤S13，请参阅图7，至少在所述容置槽70对应所述折叠区的区域填充光学透明油60，以使所述光学透明油60至少覆盖所述折叠区。
具体的，可在所述容置槽70对应所述非折叠区的至少部分区域涂布光学透明胶，以使所述光学透明胶覆盖相应的非折叠区；并在所述容置槽70对应所述折叠区的区域及所述容置槽70对应所述非折叠区未涂布光学透明胶的区域填充光学透明油60，以使所述光学透明油60覆盖所述折叠区及未被所述光学透明胶覆盖的非折叠区。或者可往所述容置槽70填充光学透明油60以覆盖整个显示屏20。
在本实施方式中，往所述容置槽70填充光学透明油60以覆盖整个显示屏20。
步骤S14，请参阅图2，在所述框胶40远离所述背板10的一侧覆盖一盖板30并固化所述框胶40，以使密封所述容置槽70形成一收容腔50，从而制得所述柔性显示器100a。
具体的，在抽真空状态下使所述背板10密封所述容置槽70形成一密封的收容腔50，从而避免所述盖板30与所述光学透明油60间产生气泡，且所述收容腔50中产生负压，使得所述背板10、盖板30及框胶40之间的连接更加紧密，从而有利于防止光学透明油60的漏出。
请参阅图1、图3及图8-图10，本发明另一较佳实施方式还提供一种柔性显示器100b的制作方法，所述柔性显示器100b划分为至少两个非弯折区101及连接相邻两个非弯折区101的弯折区103，所述柔性显示器100b的制作方法包括以下步骤：
步骤31，请参阅图9，提供一背板10，并沿所述背板10的周缘区域点胶形成一未固化或半固化的框胶40，以使所述框胶40与所述背板10围设形成一容置槽70。
步骤32，请参阅图10，在所述容置槽70内填充透明光学油60，并置入高度小于所述容置槽70深度的显示屏20以使整个所述显示屏20被所述透明光学油60包覆。
具体的，可直接往所述容置槽70填充足以使后续置入的显示屏20浸没的透明光学油60。或者可先往所述容置槽70填充部分透明光学油使得后续置入的显示屏20与所述背板10之间通过透明光学油间隔，而后在置入显示屏20后再在抽真空的情况下继续填充透明光学油以使所述容置槽70内的透明光学油60包覆整个所述显示屏20。
步骤S33，请参阅图3，在所述框胶40远离所述背板10的一侧覆盖一盖板30并固化所述框胶40，以密封所述容置槽70形成一收容腔50，从而制得所述柔性显示器100a。
请参阅图11，为显示装置200的示意图。所述显示装置200包括上述柔性显示器100(100a、100b)。其中，所述显示装置200可为手机、平板电脑、电视机等。
本发明的柔性显示器100(100a、100b)，其所述显示屏20至少对应所 述弯折区103的区域与所述盖板30之间设有光学透明油60，使得所述柔性显示器100(100a、100b)在弯折时，所述显示屏20与所述盖板30之间应力不相互传递，所述显示屏20、所述盖板30、所述光学透明油60分别具有中性面(Neutral Plane)，使得所述显示屏20的中性面的位置在形成柔性显示器100(100a、100b)后不发生变化，避免在柔性显示器100(100a、100b)折叠时因所述显示屏20的中性面位置的改变造成的损伤。并且，所述显示屏20至少对应所述弯折区103的区域与所述盖板30之间设有光学透明油60，还降低了光在各介面上的全反射率，从而提高了所述显示屏20的出光效率。同样，在所述背板10与所述显示屏20之间形成光学透明油60能够在柔性显示器100(100a、100b)折叠时进一步保护所述显示屏20，从而避免所述柔性显示器100(100a、100b)失效，且有利于所述柔性显示器100(100a、100b)热量的传导，以避免所述柔性显示器100(100a、100b)局部过热。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (12)

  1. 一种柔性显示器，其中，所述柔性显示器划分为至少两个非弯折区及连接相邻两个非弯折区的弯折区，所述柔性显示器包括依次层叠设置的背板、显示屏及盖板，所述背板的周缘区域与所述盖板的周缘区域通过框胶连接并在所述背板与所述盖板之间形成一密封的收容腔，所述显示屏设于所述背板上且容于所述收容腔内，所述显示屏对应所述弯折区的区域与所述盖板之间设有光学透明油。
  2. 如权利要求1所述的柔性显示器，其中：所述显示屏对应所述弯折区的区域与所述框胶之间设有光学透明油，所述光学透明油的流动性有利于所述柔性显示器的散热，以避免所述柔性显示器局部过热。
  3. 如权利要求2所述的柔性显示器，其中：所述显示屏对应所述非弯折区的区域与所述盖板之间及所述显示屏对应所述非弯折区的区域与所述框胶之间设有光学透明油。
  4. 如权利要求2所述的柔性显示器，其中：所述显示屏对应所述弯折区的区域与所述背板之间设有光学透明油。
  5. 一种柔性显示器的制作方法，所述柔性显示器划分为至少两个非弯折区及连接相邻两个非弯折区的弯折区，所述柔性显示器的制作方法包括以下步骤：
    提供一粘结有显示屏的背板，所述显示屏包括与所述非弯折区对应的非折叠区，以及与所述弯折区对应的折叠区；
    沿所述背板的周缘区域点胶形成一未固化或半固化的框胶，以使所述框胶与所述背板围设形成一容置槽以容纳所述显示屏，且所述框胶的高度大于所述显示屏的高度；
    至少在所述容置槽对应所述折叠区的区域填充光学透明油，以使所述光学透明油至少覆盖所述折叠区；以及
    在所述框胶远离所述背板的一侧覆盖一盖板并固化所述框胶，以密封所述容置槽形成一收容腔，从而制得所述柔性显示器。
  6. 如权利要求5所述的柔性显示器的制作方法，其中：步骤“至少在所 述容置槽对应所述折叠区的区域填充光学透明油，以使所述光学透明油至少覆盖所述折叠区”具体为：
    填充光学透明油以覆盖整个显示屏。
  7. 如权利要求5所述的柔性显示器的制作方法，其中：步骤“至少在所述容置槽对应所述折叠区的区域填充光学透明油，以使所述光学透明油至少覆盖所述折叠区”具体为：
    在所述容置槽对应所述非折叠区的至少部分区域涂布光学透明胶，以使所述光学透明胶覆盖相应的非折叠区；
    并在所述容置槽对应所述折叠区的区域及所述容置槽对应所述非折叠区未涂布光学透明胶的区域填充光学透明油，以使所述光学透明油覆盖所述折叠区及所述非折叠区未被所述光学透明胶覆盖的区域。
  8. 一种柔性显示器的制作方法，所述柔性显示器划分为至少两个非弯折区及连接相邻两个非弯折区的弯折区，所述柔性显示器的制作方法包括以下步骤：
    提供一背板，并沿所述背板的周缘区域点胶形成一未固化或半固化的框胶，以使所述框胶与所述背板围设形成一容置槽；
    在所述容置槽内填充透明光学油，并置入高度小于所述容置槽的深度的显示屏以使整个所述显示屏被所述透明光学油包覆；以及
    在所述框胶远离所述背板的一侧覆盖一盖板并固化所述框胶，以密封所述容置槽形成一收容腔，从而制得所述柔性显示器。
  9. 一种显示装置，其包括柔性显示器，所述柔性显示器划分为至少两个非弯折区及连接相邻两个非弯折区的弯折区，所述柔性显示器包括依次层叠设置的背板、显示屏及盖板，所述背板的周缘区域与所述盖板的周缘区域通过框胶连接并在所述背板与所述盖板之间形成一密封的收容腔，所述显示屏设于所述背板上且容于所述收容腔内，所述显示屏对应所述弯折区的区域与所述盖板之间设有光学透明油。
  10. 如权利要求9所述的显示装置，其中：所述显示屏对应所述弯折区的区域与所述框胶之间设有光学透明油，所述光学透明油的流动性有利于所述柔性显示器的散热，以避免所述柔性显示器局部过热。
  11. 如权利要求10所述的显示装置，其中：所述显示屏对应所述非弯折区的区域与所述盖板之间及所述显示屏对应所述非弯折区的区域与所述框胶之间设有光学透明油。
  12. 如权利要求10所述的显示装置，其中：所述显示屏对应所述弯折区的区域与所述背板之间设有光学透明油。
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