WO2022147902A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2022147902A1
WO2022147902A1 PCT/CN2021/081240 CN2021081240W WO2022147902A1 WO 2022147902 A1 WO2022147902 A1 WO 2022147902A1 CN 2021081240 W CN2021081240 W CN 2021081240W WO 2022147902 A1 WO2022147902 A1 WO 2022147902A1
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WO
WIPO (PCT)
Prior art keywords
layer
display device
cover plate
display
adhesive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/081240
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English (en)
French (fr)
Inventor
王鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US17/286,472 priority Critical patent/US11997868B2/en
Publication of WO2022147902A1 publication Critical patent/WO2022147902A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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 application relates to the field of display technology, and in particular, to a display device.
  • the surface of foldable products is designed to be covered with strengthened ultra-thin glass (UTG). cracks, causing rupture.
  • UTG ultra-thin glass
  • An embodiment of the present application provides a display device.
  • the material of the glass layer is reinforced ultra-thin glass, and the surrounding edges of the glass layer are compared with the first adhesive layer.
  • the surrounding edges of the first adhesive layer and the second adhesive layer are indented to form an indented area, and a buffer layer is arranged in the indented area.
  • the edge of the glass layer plays a protective role, improves cracks, cracks and other problems, and increases the buffering effect.
  • the present application provides a display device with a cover plate, wherein the display device includes: a first adhesive layer, a glass layer and a second adhesive layer stacked on one side of the cover plate laminated layer, wherein the material of the glass layer is reinforced ultra-thin glass; the surrounding edges of the glass layer shrink inwardly compared with the surrounding edges of the first adhesive layer and the second adhesive layer to form a shrinkage area , and a buffer layer is arranged in the indented area.
  • the buffer layer includes a polymer glue material.
  • the material of the first adhesive layer is transparent optical adhesive; the material of the second adhesive layer is transparent optical adhesive.
  • the display device has a main display area and an edge area, a light-shielding layer is disposed on the side of the cover plate close to the first adhesive layer, and the light-shielding layer is disposed on the within the border area.
  • the orthographic projection of the light shielding layer on the cover plate covers the orthographic projection of the retracted region on the cover plate.
  • the display device further includes a display module, the display module includes a function control layer and a display film layer which are arranged in layers, and the function control layer is arranged on the glass layer away from the surrounding area. On one side of the cover plate, the display film layer is disposed on the side of the function control layer away from the glass layer.
  • the display film layer is a flexible OLED display panel;
  • the function control layer is at least one of a touch layer or a polarizer.
  • the display device further comprises: a backplane layer, and the backplane layer is located on a side of the display module away from the cover plate.
  • the present application further provides a display device with a cover plate, wherein the display device includes: a first adhesive layer, a glass layer and a second layer stacked on one side of the cover plate An adhesive layer, wherein at least one side edge of the glass layer shrinks inwardly compared with the corresponding edges of the first adhesive layer and the second adhesive layer to form an indented area, and is arranged in the indented area
  • the buffer layer is provided.
  • the material of the glass layer is reinforced ultra-thin glass.
  • the periphery of the glass layer is retracted relative to the periphery of the first adhesive layer and the second adhesive layer, and the retracted distance is greater than or equal to 0.25 mm.
  • the buffer layer includes a polymer glue material.
  • the material of the first adhesive layer is transparent optical adhesive; the material of the second adhesive layer is transparent optical adhesive.
  • the display device has a main display area and an edge area, a light-shielding layer is disposed on the side of the cover plate close to the first adhesive layer, and the light-shielding layer is disposed on the within the border area.
  • the orthographic projection of the light shielding layer on the cover plate covers the orthographic projection of the retracted region on the cover plate.
  • the display device further includes a display module, the display module includes a function control layer and a display film layer which are arranged in layers, and the function control layer is arranged on the glass layer away from the surrounding area. On one side of the cover plate, the display film layer is disposed on the side of the function control layer away from the glass layer.
  • the display film layer is a flexible OLED display panel;
  • the function control layer is at least one of a touch layer or a polarizer.
  • the display device further comprises: a backplane layer, and the backplane layer is located on a side of the display module away from the cover plate.
  • a glass layer is arranged between a first adhesive layer and a second adhesive layer, and the material of the glass layer is reinforced ultra-thin glass, Compared with the surrounding edges of the first adhesive layer and the second adhesive layer, the surrounding edges of the glass layer are retracted to form a retracted area, and a buffer layer is arranged in the retracted area, and the buffer layer can Prevent the bonding between the first adhesive layer and the second adhesive layer and protect the edge of the glass layer, improve cracks, cracks and other problems, and increase the buffering effect.
  • FIG. 1 is a schematic structural diagram of a display device in an embodiment of the present application.
  • FIG. 2 is a schematic longitudinal cross-sectional view of a display device according to another embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present application.
  • a display device is provided, and the display device has the characteristics of being foldable, rolling, and the like.
  • the display device has a cover plate 100 , and the display device includes a glass layer 300 stacked on one side of the cover plate 100 , and a glass layer 300 disposed on the glass layer 300 away from the cover plate A display module 500 on one side of 100 , and the display device further includes a first adhesive layer 200 and a second adhesive layer 400 .
  • the first adhesive layer 200 is used to fix the glass layer 300 to the cover plate 100
  • the second adhesive layer 400 is used to fix the glass layer 300 to the display module 500 .
  • at least one edge of the glass layer 300 is retracted inward compared to the corresponding edges of the first adhesive layer 200 and the second adhesive layer 400 to form a retracted area 1 .
  • the surrounding edges of the glass layer 300 are retracted inward relative to the edge of the display module 500 to form the retracted area 1, and the retracted distance of the retracted area 1 is greater than or equal to 0.25 mm.
  • Using the glass layer 300 improves the impact resistance of the entire display device.
  • FIG. 1 is only a preferred embodiment, since FIG. 1 is only a cross-sectional view at one of the edges, it only shows that the indented region 1 is formed at the right edge of the glass layer 300 .
  • the indented region 1 can be formed on the left edge of the glass layer 300 , or the indented region 1 can be formed on the opposite side edges (the right edge and the left edge) of the glass layer 300 .
  • the indented area 1 is formed, or preferably, the indented area 1 is formed around the glass layer 300 . It can be seen that the present application does not limit the specific position, quantity, indentation distance or indentation area of the indented area 1. These parameters can be changed according to the model structure of the actual display device, and the main purpose is to improve the display. Shock resistance of module 500.
  • the material of the glass layer 300 is reinforced ultra-thin glass (Ultra Thin Glass, UTG).
  • the reinforced ultra-thin glass is foldable, has good flexibility, has a smooth hand feel and good uniformity, has high strength and can also take into account its hardness, and maintains the better glass.
  • the optical performance makes the display module 500 applied with the reinforced ultra-thin glass stronger in impact resistance, prevents the fragments from scattering when the glass layer 300 is impacted and shattered, and is safer and more reliable.
  • the reinforced ultra-thin glass is suitable for folding screen equipment, and the display device includes a foldable mobile phone, a tablet computer, an electronic reader, an electronic photo album, an exhibition window, and the like.
  • the ultra-thin glass In the preparation process of the reinforced ultra-thin glass, a common glass usually needs to be thinned, formed by CNC edging or by subsequent grinding, polishing and other processes, and the ultra-thin glass can be made by ion exchange.
  • the surface of the ultra-thin glass is chemically strengthened, and the ultra-thin glass is laser-treated to obtain the strengthened ultra-thin glass, so as to enhance the strength of the strengthened ultra-thin glass.
  • the materials of the first adhesive layer 200 and the second adhesive layer 400 are preferably transparent optical adhesive (Optically Clear Adhesive, OCA).
  • the material of the first adhesive layer 200 may be transparent optical tape, liquid transparent optical adhesive (LOCA), optically transparent resin (OCR), polyvinyl butyral or ethylene-vinyl acetate copolymer
  • the material of the second adhesive layer 400 is one of transparent optical tape, liquid transparent optical adhesive, optically transparent resin, polyvinyl butyral or ethylene-vinyl acetate copolymer.
  • both the first adhesive layer 200 and the second adhesive layer 400 are double-sided tapes.
  • the first adhesive layer 200 and the second adhesive layer 400 are respectively used to bond the cover plate 100 , the display module 500 and the glass layer 300 to achieve double-sided support, which is beneficial to The sealing degree between the display module 500 , the cover plate 100 and the glass layer 300 is improved.
  • a buffer layer 600 is provided in the retracted region 1 .
  • the buffer layer 600 is overlapped with the indented region 1 , and the buffer layer 600 is not shown with hatching to ensure that the indented region 1 is clearly displayed.
  • the buffer layer 600 is disposed between the first adhesive layer 200 and the second adhesive layer 400 , that is, the buffer layer 600 and the glass layer 300 are disposed in the same layer and The buffer layer 600 is in contact with the edge of the glass layer 300 .
  • the buffer layer 600 is supported and fixed between the first adhesive layer 200 and the second adhesive layer 400 to prevent the first adhesive
  • the layer 200 and the second adhesive layer 400 are bonded to each other, so that the edge of the glass layer 300 is indirectly protected by the buffer layer 600 , thereby achieving the purpose of increasing the buffer effect.
  • the buffer layer 600 includes a polymer adhesive material.
  • the buffer layer 600 is a material selected from room temperature vulcanization silicone rubber, silicone glue, polyurethane glue, polyvinyl butyral or ethylene-vinyl acetate copolymer.
  • FIG. 1 mainly shows the edge structure of the display device, but the overall structure of the display device cannot be limited by FIG. 1 .
  • the cover plate 100 is preferably a 3D cover plate or other flexible cover plate.
  • the cover plate 100 is used to accommodate the display module 500 .
  • 100 and the display module 500 are attached to each other to form the display device.
  • the cover plate 100 may also be a planar structure.
  • the display device has a main display area 10 and at least one edge area 20 , and a light shielding layer 700 is disposed on the side of the cover plate 100 close to the first adhesive layer 200 .
  • the material of the light shielding layer 700 is an opaque material, and the light shielding layer 700 is used for shielding light.
  • the light shielding layer 700 is disposed in the edge region 20 .
  • the orthographic projection of the light shielding layer 700 on the cover plate 100 covers the orthographic projection of the retracted region 1 on the cover plate 100 .
  • the display module 500 has flexibility, and the display module 500 includes a plurality of functional film layers arranged in layers. As shown in FIG. 1 , the display module 500 includes a function control layer 501 and a display film layer 502 disposed in layers, wherein the function control layer 501 is disposed on a side of the glass layer 300 away from the cover plate 100 . The display film layer 502 is disposed on the side of the function control layer 501 away from the glass layer 300 . More specifically, in this embodiment, the display module 500 is disposed on the side of the second adhesive layer 400 away from the glass layer 300 , and the function control layer 501 is disposed on the side of the second adhesive layer 400 away from the glass layer 300 . The second adhesive layer 400 is disposed on the side of the second adhesive layer 400 away from the glass layer 300 , and the display film layer 502 is disposed on the side of the function control layer 501 away from the second adhesive layer 400 .
  • the display film layer 502 is a flexible OLED display panel, and the display film layer 502 includes a thin film transistor array substrate.
  • the function control layer 501 is either a touch layer or a polarizer.
  • the function control layer 501 includes, but is not limited to, the touch layer or the polarizer, and the function control layer 501 may also include other functional film layers, so as to improve the performance of the display module 500 better.
  • the touch layer when the function control layer 501 is a touch layer, the touch layer may be an on cell structure, the touch layer is disposed on the thin film transistor array substrate, and the touch The layer is connected to the thin film transistor array substrate.
  • the thin film transistor array substrate sequentially includes a thin film transistor array layer, an OLED light emitting layer and a thin film encapsulation layer, and the OLED light emitting layer includes an anode, a hole injection layer, a hole transport layer, An organic light-emitting layer, an electron transport layer, an electron injection layer and a cathode, and the thin film encapsulation layer covers the OLED light-emitting layer.
  • the touch layer may also have an in cell structure, that is, the position of the touch layer is replaced by being built into the display film layer 502 , that is, the thin film transistor array substrate.
  • the display film layer 502 is equivalent to a flexible imaging device and is used for image display, and the touch control layer is used to collect sensing signals and implement a touch function.
  • the touch layer can also be selected as a flexible thin film capacitive touch panel.
  • the display film layer 502 is an OLED display panel.
  • the function control layer 501 is a polarizer, since the OLED is self-luminous, theoretically, the OLED may not need a polarizer similar to an LCD; The light will be reflected back through the cathode, affecting the viewing effect and contrast.
  • a polarizer + 1/4 ⁇ wave plate combined, circularly polarized light
  • the function control layer 501 is polarized light.
  • the film it has the effect of reflecting the external light at the cathode.
  • the display device further includes a backplane layer 800 , and the backplane layer 800 is disposed on a side of the display module 500 away from the cover plate 100 . More specifically, the backplane layer 800 is disposed on a side of the display mold layer 502 away from the cover plate 100 . In this embodiment, the backplane layer 800 supports the display module 500 .
  • the display device includes a cover plate 110, a first adhesive layer 210, a glass layer 310, a second adhesive layer 410, A display module 510 and a backplane layer 810 .
  • the display module 510 includes a function control layer 511 and a display film layer 512 arranged in layers.
  • the function control layer 511 is disposed on the side of the glass layer 310 away from the cover plate 110 .
  • the display film layer 512 is disposed on the side of the function control layer 511 away from the glass layer 310 .
  • the surrounding edges of the glass layer 310 are all stretched inward relative to the edges of the display module 510 to form the retracted region 2 .
  • FIG. 2 only schematically shows that the opposite sides of the glass layer 310 expand and contract inward relative to the edge of the display module 510 to form the retracted area 2 , although it only shows that The right edge and the left edge of the glass layer 310 form the glass layer 310, but in fact in this preferred embodiment, the structure of the glass layer 310 is actually such that the surrounding edges are all opposite to the display module The edge of 510 expands and contracts inward to form the inwardly retracted area 2 .
  • the structure of the indented area can be replaced by: the indented area is only provided on the opposite side edges (right and left edges) of the glass layer, that is, the opposite sides of the glass layer Compared with the opposite side edges of the display module (or the first adhesive layer and the second adhesive layer of the display device), the two side edges are retracted to form the retracted area, that is, the inner retracted area is formed.
  • the constricted regions are respectively arranged on opposite side edges of the glass layer.
  • the display device shown in FIG. 2 does not limit the specific position, quantity, indentation distance or indentation area of the indentation area 2. These parameters can be changed according to the actual model structure of the display device, but the main The purpose is to improve the impact resistance of the display module 510 .
  • the display device has a main display area 11 and at least one edge area 21 , and a light shielding layer 710 is disposed on the side of the cover plate 110 close to the first adhesive layer 210 .
  • the light shielding layer 710 is disposed in the edge region 21 .
  • the orthographic projection of the light shielding layer 710 on the cover plate 110 covers the orthographic projection of the retracted region 2 on the cover plate 110 .
  • a buffer layer 610 is provided in the retracted region 2 .
  • the buffer layer 610 is disposed between the first adhesive layer 210 and the second adhesive layer 410 , that is, the buffer layer 610 is the same layer as the glass layer 310
  • the buffer layer 610 is disposed and in contact with the edge of the glass layer 310 .
  • the buffer layer 610 is supported and fixed between the first adhesive layer 210 and the second adhesive layer 410 to prevent the first adhesive
  • the layer 210 and the second adhesive layer 410 are bonded to each other, so that the edge of the glass layer 310 can be indirectly protected by the buffer layer 610, thereby achieving the purpose of increasing the buffer effect.
  • the retracted area is formed by shrinking at least one side edge of the glass layer in comparison with the corresponding edges of the first adhesive layer and the second adhesive layer
  • the indented area can be formed by shrinking the surrounding edges of the glass layer in comparison with the surrounding edges of the first adhesive layer and the second adhesive layer, or by the relative shrinkage of the glass layer.
  • the edges on both sides are retracted to form the retracted area, and a buffer layer is arranged in the retracted area.
  • the material is reinforced ultra-thin glass, the buffer layer can prevent the bonding between the first adhesive layer and the second adhesive layer and protect the edge of the glass layer to improve cracks, cracks and other problems , and increase the buffering effect.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示装置，具有一盖板(100)，显示装置包括层叠设置于盖板(100)一侧的一第一粘合层(200)、一玻璃层(300)及一第二粘合层(400)，其中，玻璃层(300)的材料为强化超薄玻璃，玻璃层(300)的四周边缘相比第一粘合层(200)及第二粘合层(400)的四周边缘内缩形成内缩区域，在内缩区域内设置缓冲层(600)。

Description

显示装置 技术领域
本申请涉及显示技术领域，特别涉及一种显示装置。
 背景技术
目前可折叠产品表面采用强化超薄玻璃（Ultra Thin Glass ，UTG）覆盖的设计方式，但由于所述强化超薄玻璃本身的特性因素，所述强化超薄玻璃的边缘部分比较容易受到冲击，产生裂纹，造成破裂。
鉴于此，需要提供一种新的显示装置，以针对可折叠产品的边缘进行缓冲保护。
 技术问题
本申请实施例提供一种显示装置，通过在一第一粘合层与一第二粘合层之间设置一玻璃层，玻璃层的材料为强化超薄玻璃，玻璃层的四周边缘相比第一粘合层及第二粘合层的四周边缘内缩形成内缩区域，在内缩区域内设置缓冲层，缓冲层能够防止第一粘合层与第二粘合层之间粘结且对玻璃层边缘起到保护作用，改善裂纹、破裂等问题，并增加缓冲效果。
 技术解决方案
第一方面，本申请提供一种显示装置，具有一盖板，其中，所述显示装置包括：层叠设置于所述盖板一侧的一第一粘合层、一玻璃层及一第二粘合层，其中，所述玻璃层的材料为强化超薄玻璃；所述玻璃层的四周边缘相比所述第一粘合层及所述第二粘合层的四周边缘内缩形成内缩区域，在所述内缩区域内设置缓冲层。
在所述的显示装置中，所述缓冲层包括高分子胶材。
在所述的显示装置中，所述第一粘合层的材料为透明光学胶；所述第二粘合层的材料为透明光学胶。
在所述的显示装置中，所述显示装置具有一主显示区和一边缘区，在所述盖板靠近所述第一粘合层的一侧设置有一遮光层，所述遮光层设置于所述边缘区内。
在所述的显示装置中，所述遮光层在所述盖板上的正投影覆盖所述内缩区域在所述盖板上的正投影。
在所述的显示装置中，所述显示装置还包括显示模组，所述显示模组包括层叠设置的一功能控制层和一显示膜层，所述功能控制层设置于所述玻璃层远离所述盖板的一侧，所述显示膜层设置于所述功能控制层远离所述玻璃层的一侧。
在所述的显示装置中，所述显示膜层为柔性OLED显示面板；所述功能控制层为触控层或偏光片中的至少一种。
在所述的显示装置中，所述显示装置还包括：一背板层，所述背板层位于所述显示模组远离所述盖板的一侧。
第二方面，本申请还提供一种显示装置，具有一盖板，其中，所述显示装置包括：层叠设置于所述盖板一侧的一第一粘合层、一玻璃层及一第二粘合层，其中，所述玻璃层的至少一侧边缘相比所述第一粘合层及所述第二粘合层的对应边缘内缩形成内缩区域，在所述内缩区域内设置缓冲层。
在所述的显示装置中，所述玻璃层的材料为强化超薄玻璃。
在所述的显示装置中，所述玻璃层的四周相对于所述第一粘合层及所述第二粘合层的四周内缩，内缩的距离大于等于0.25mm。
在所述的显示装置中，所述缓冲层包括高分子胶材。
在所述的显示装置中，所述第一粘合层的材料为透明光学胶；所述第二粘合层的材料为透明光学胶。
在所述的显示装置中，所述显示装置具有一主显示区和一边缘区，在所述盖板靠近所述第一粘合层的一侧设置有一遮光层，所述遮光层设置于所述边缘区内。
在所述的显示装置中，所述遮光层在所述盖板上的正投影覆盖所述内缩区域在所述盖板上的正投影。
在所述的显示装置中，所述显示装置还包括显示模组，所述显示模组包括层叠设置的一功能控制层和一显示膜层，所述功能控制层设置于所述玻璃层远离所述盖板的一侧，所述显示膜层设置于所述功能控制层远离所述玻璃层的一侧。
在所述的显示装置中，所述显示膜层为柔性OLED显示面板；所述功能控制层为触控层或偏光片中的至少一种。
在所述的显示装置中，所述显示装置还包括：一背板层，所述背板层位于所述显示模组远离所述盖板的一侧。
 有益效果
相较于现有技术，本申请实施例提供的显示装置，通过在一第一粘合层与一第二粘合层之间设置一玻璃层，所述玻璃层的材料为强化超薄玻璃，所述玻璃层的四周边缘相比所述第一粘合层及所述第二粘合层的四周边缘内缩形成内缩区域，在所述内缩区域内设置缓冲层，所述缓冲层能够防止所述第一粘合层与所述第二粘合层之间粘结且对所述玻璃层边缘起到保护作用，改善裂纹、破裂等问题，并增加缓冲效果。
 附图说明
图1为本申请实施例中显示装置的结构示意图。
图2为本申请另一实施例中显示装置的纵向截面示意图。
主要结构或元件符号说明如下：
100，110、盖板；                 200，210、第一粘合层；
300，310、玻璃层；               400，410、第二粘合层；
500，510、显示模组；             501，511、功能控制层；
502，512、显示膜层；             1，2、内缩区域；
10，11、主显示区；               20，21、边缘区；
600，610、缓冲层；               700，710、遮光层；
800，810、背板层。
 本发明的实施方式
本申请提供一种显示装置，为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
请参阅图1，图1为本申请实施例中显示装置的结构示意图。在本实施例中，提供一种显示装置，所述显示装置具有可折叠、卷曲等特性。如图1所示，所述显示装置具有一盖板100，所述显示装置包括层叠设置于所述盖板100一侧的一玻璃层300，以及设置于所述玻璃层300背离所述盖板100一侧的一显示模组500，以及，所述显示装置还包括一第一粘合层200及一第二粘合层400。所述第一粘合层200用来将所述玻璃层300固定至所述盖板100上，所述第二粘合层400用来将所述玻璃层300固定至所述显示模组500上。如图1所示，所述玻璃层300的至少一侧边缘相比所述第一粘合层200及所述第二粘合层400对应的边缘内缩形成内缩区域1。
优选地，所述玻璃层300的四周边缘均相对于所述显示模组500的边缘向内伸缩形成所述内缩区域1，所述内缩区域1的内缩距离大于等于0.25mm。利用所述玻璃层300提高整个所述显示装置的抗冲击能力。
更具体地讲，图1仅作为一种优选实施例，由于图1只是其中一边缘处的截面图，其仅表现出在所述玻璃层300的右侧边缘形成所述内缩区域1。在其他实施例中，可在所述玻璃层300的左侧边缘形成所述内缩区域1，也可在所述玻璃层300的相对两侧边缘（右侧边缘和左侧边缘）都设置所述内缩区域1，或者是优选地在所述玻璃层300的四周都形成所述内缩区域1。可见，本申请并未限制所述内缩区域1的具体位置、数量、内缩距离或内缩面积，这些参数都可以根据实际显示装置的机型结构而变化，而主要目的就是提高所述显示模组500的抗冲击能力。
在本申请优选实施例中，如图1所示，所述玻璃层300的材料为强化超薄玻璃（Ultra Thin Glass，UTG）。
在本优选实施例中，所述强化超薄玻璃具备可折叠、柔韧性好，具有光滑的手感和良好的均匀度，具有较高强度的同时还能兼顾其硬度，且保持了玻璃较佳的光学性能，使应用了所述强化超薄玻璃的所述显示模组500抗冲击能力更强，防止所述玻璃层300受冲撞破碎时碎片飞散，更加安全可靠。所述强化超薄玻璃适用于折叠屏设备，所述显示装置包括可折叠的手机、平板电脑、电子阅读器、电子相册及展览窗等。
在所述强化超薄玻璃的制备过程中，通常需要对一普通玻璃进行减薄，CNC磨边或利用后续的研磨、抛光等工艺形成，以及可以通过对所述超薄玻璃进行离子交换使所述超薄玻璃表面得到化学强化，以及对所述超薄玻璃进行激光处理获得所述强化超薄玻璃，以增强所述强化超薄玻璃的强度。
在本申请实施例中，所述第一粘合层200和所述第二粘合层400的材料优选为透明光学胶（Optically Clear Adhesive，OCA）。在其他实施例中，所述第一粘合层200的材料可以为透明光学胶带、液态透明光学胶（LOCA）、光学透明树脂（OCR）、聚乙烯缩丁醛或乙烯-醋酸乙烯共聚物中的一种；所述第二粘合层400的材料为透明光学胶带、液态透明光学胶、光学透明树脂、聚乙烯缩丁醛或乙烯-醋酸乙烯共聚物中的一种。在一些实施例中，所述第一粘合层200和所述第二粘合层400均为双面胶。所述第一粘合层200、所述第二粘合层400分别用于将所述盖板100、所述显示模组500以及所述玻璃层300进行粘结并实现双面支撑，有利于提高所述显示模组500、所述盖板100、所述玻璃层300之间的密封度。
如图1所示，在所述内缩区域1内设置有缓冲层600。图1中所述缓冲层600与所述内缩区域1是重叠的，为保证清楚展现所述内缩区域1，而未用剖面线展现所述缓冲层600。
在本实施例中，所述缓冲层600设置于所述第一粘合层200与所述第二粘合层400之间，即，所述缓冲层600与所述玻璃层300同层设置且所述缓冲层600与所述玻璃层300的边缘相接触。所述缓冲层600支撑固定于所述第一粘合层200与所述第二粘合层400之间，以防止在所述内缩区域1不作填充的自然状态下，所述第一粘合层200与所述第二粘合层400相互粘结，实现利用所述缓冲层600间接保护所述玻璃层300的边缘，从而达到增加缓冲效果的目的。所述缓冲层600包括高分子胶材。优选地，所述缓冲层600为室温硫化型硅橡胶、硅酮胶、聚氨酯胶、聚乙烯缩丁醛或乙烯-醋酸乙烯共聚物中的一种材料。
图1主要展现了所述显示装置的边缘结构，但并不能以图1来限定所述显示装置的整体结构。例如，在其中一实施例中，所述盖板100优选为3D盖板或其他柔性盖板。当所述盖板100为3D盖板时，所述盖板100朝向所述显示模组500的一侧表面为凹面，所述盖板100用于收容所述显示模组500，所述盖板100与所述显示模组500相互贴合形成所述显示装置。在其他实施例中，所述盖板100还可以为平面状结构。
续见图1。在本实施例中，所述显示装置具有一主显示区10和至少一边缘区20，在所述盖板100靠近所述第一粘合层200的一侧设置有一遮光层700。所述遮光层700的材料为不透光材料，所述遮光层700用于遮光。所述遮光层700设置于所述边缘区20内。并且，如图1所示，所述遮光层700在所述盖板100上的正投影覆盖所述内缩区域1在所述盖板100上的正投影。
续见图1。所述显示模组500具有柔性，所述显示模组500包括多个层叠设置的功能膜层。如图1所示，所述显示模组500包括层叠设置的一功能控制层501和一显示膜层502，其中所述功能控制层501设置于所述玻璃层300远离所述盖板100的一侧，所述显示膜层502设置于所述功能控制层501背离所述玻璃层300的一侧。更具体地讲，在本实施例中，所述显示模组500设置于所述第二粘合层400远离所述玻璃层300的一侧，此时，所述功能控制层501设置于所述第二粘合层400远离所述玻璃层300的一侧，所述显示膜层502设置于所述功能控制层501远离所述第二粘合层400的一侧。
需要进行说明的是，在本实施例中，所述显示膜层502为柔性OLED显示面板，所述显示膜层502包括薄膜晶体管阵列基板。作为优选实施例，所述功能控制层501为触控层或偏光片中的任一种。
在其他实施例中，所述功能控制层501包括但不限于所述的触控层或偏光片，所述功能控制层501还可以包括其他功能膜层，以使得所述显示模组500的性能更佳。在本申请实施例中，当所述功能控制层501为触控层时，所述触控层可以为on cell结构，所述触控层设置于所述薄膜晶体管阵列基板上，所述触控层与所述薄膜晶体管阵列基板连接。所述薄膜晶体管阵列基板依次包括薄膜晶体管阵列层、OLED发光层和薄膜封装层，所述OLED发光层包括依次形成于所述薄膜晶体管阵列基板上方的阳极、空穴注入层、空穴传输层、有机发光层、电子传输层、电子注入层与阴极，所述薄膜封装层覆盖所述OLED发光层。
此外，在其他实施例中，所述触控层还可以为in cell结构，即，所述触控层的位置替换为内置于所述显示膜层502即所述薄膜晶体管阵列基板的内部。
在本实施例中，所述显示膜层502相当于柔性成像设备并用于图像显示，所述触控层用于收集感应信号并用于实现触控功能。其中，所述触控层还可选取为柔性薄膜电容式触控面板。
在优选实施例中，所述显示膜层502为OLED显示面板，当所述功能控制层501为偏光片时，由于OLED是自发光，理论上OLED可以不需要类似LCD一样的偏光片；但外界光会经过阴极将光反射回来，影响观看效果和对比度，为了解决上述问题，就使用到偏光片+1/4λ波片（合起来即圆偏光）；当外界光先经过偏光片时已经有一半光无法通过，这一半光经过1/4λ波片和反射之后与原来的光已经偏90度，反射回来的光无法通过偏光片，解决了反射问题，由此，所述功能控制层501为偏光片时，起到外界光在阴极发生反射的效果。
如图1所示，所述显示装置还包括一背板层800，所述背板层800设置于所述显示模组500远离所述盖板100的一侧。更具体地讲，所述背板层800设置于所述显示模层502远离所述盖板100的一侧。在本实施例中，所述背板层800对所述显示模组500起到支撑作用。
请参见图2，在本申请一种优选实施例中，所述显示装置包括依次层叠设置的一盖板110、一第一粘合层210、一玻璃层310、一第二粘合层410、一显示模组510以及一背板层810。所述显示模组510包括层叠设置的一功能控制层511和一显示膜层512，所述功能控制层511设置于所述玻璃层310远离所述盖板110的一侧，所述显示膜层512设置于所述功能控制层511远离所述玻璃层310的一侧。
需要特别说明的是，在本优选实施例中，所述玻璃层310的四周边缘均相对于所述显示模组510的边缘向内伸缩形成所述内缩区域2。由图2可知，图2仅示意性地表现出所述玻璃层310的相对两侧相对于所述显示模组510的边缘向内伸缩形成所述内缩区域2，然其虽仅表现出在所述玻璃层310的右侧边缘和左侧边缘形成所述玻璃层310，但事实上在本优选实施例中，所述玻璃层310的结构实际为其四周边缘均相对于所述显示模组510的边缘向内伸缩，形成所述内缩区域2。
在其他实施例中，所述内缩区域的结构可替换为：仅在所述玻璃层的相对两侧边缘（右侧边缘和左侧边缘）设置内缩区域，即，所述玻璃层的相对两侧边缘相比所述显示模组（或所述第一粘合层及所述显示装置的第二粘合层）的相对两侧边缘内缩形成所述内缩区域，即，所述内缩区域分别配置于所述玻璃层的相对两侧边缘。
如图2所示的所述显示装置，未限制所述内缩区域2的具体位置、数量、内缩距离或内缩面积，这些参数都可以根据实际显示装置的机型结构而变化，而主要目的是提高所述显示模组510的抗冲击能力。
并且，所述显示装置具有一主显示区11和至少一边缘区21，在所述盖板110靠近所述第一粘合层210的一侧设置有一遮光层710。所述遮光层710设置于所述边缘区21内。并且，如图2所示，所述遮光层710在所述盖板110上的正投影覆盖所述内缩区域2在所述盖板110上的正投影。
以及，如图2所示，在所述内缩区域2内设置有缓冲层610。以及，在本实施例中，所述缓冲层610设置于所述第一粘合层210与所述第二粘合层410之间，即，所述缓冲层610与所述玻璃层310同层设置且所述缓冲层610与所述玻璃层310的边缘相接触。所述缓冲层610支撑固定于所述第一粘合层210与所述第二粘合层410之间，以防止在所述内缩区域2不作填充的自然状态下，所述第一粘合层210与所述第二粘合层410相互粘结，实现利用所述缓冲层610间接保护所述玻璃层310的边缘，从而达到增加缓冲效果的目的。
本申请实施例提供的所述显示装置，通过所述玻璃层的至少一侧边缘相比所述第一粘合层及所述第二粘合层的对应边缘内缩形成所述内缩区域，具体地，可通过所述玻璃层的四周边缘相比所述第一粘合层及所述第二粘合层的四周边缘内缩形成所述内缩区域，也可通过所述玻璃层的相对两侧边缘相比所述第一粘合层及所述第二粘合层的相对两侧边缘内缩形成所述内缩区域，在所述内缩区域内设置缓冲层，所述玻璃层的材料为强化超薄玻璃，所述缓冲层能够防止所述第一粘合层与所述第二粘合层之间粘结且对所述玻璃层边缘起到保护作用，改善裂纹、破裂等问题，并增加缓冲效果。
以上各个操作的具体实施可参见前面的实施例，在此不再赘述。
可以理解的是，对本领域普通技术人员来说，可以根据本申请的技术方案及其发明构思加以等同替换或改变，而所有这些改变或替换都应属于本申请所附的权利要求的保护范围。

Claims (18)

  1. 一种显示装置，具有一盖板，其中，所述显示装置包括：
    层叠设置于所述盖板一侧的一第一粘合层、一玻璃层及一第二粘合层，其中，所述玻璃层的材料为强化超薄玻璃；所述玻璃层的四周边缘相比所述第一粘合层及所述第二粘合层的四周边缘内缩形成内缩区域，在所述内缩区域内设置缓冲层。
  2. 根据权利要求1所述的显示装置，其中，所述缓冲层包括高分子胶材。
  3. 根据权利要求1所述的显示装置，其中，所述第一粘合层的材料为透明光学胶；所述第二粘合层的材料为透明光学胶。
  4. 根据权利要求1所述的显示装置，其中，所述显示装置具有一主显示区和一边缘区，在所述盖板靠近所述第一粘合层的一侧设置有一遮光层，所述遮光层设置于所述边缘区内。
  5. 根据权利要求4所述的显示装置，其中，所述遮光层在所述盖板上的正投影覆盖所述内缩区域在所述盖板上的正投影。
  6. 根据权利要求1所述的显示装置，其中，所述显示装置还包括显示模组，所述显示模组包括层叠设置的一功能控制层和一显示膜层，所述功能控制层设置于所述玻璃层远离所述盖板的一侧，所述显示膜层设置于所述功能控制层远离所述玻璃层的一侧。
  7. 根据权利要求6所述的显示装置，其中，所述显示膜层为柔性OLED显示面板；所述功能控制层为触控层或偏光片中的至少一种。
  8. 根据权利要求6所述的显示装置，其中，所述显示装置还包括：一背板层，所述背板层位于所述显示模组远离所述盖板的一侧。
  9. 一种显示装置，具有一盖板，其中，所述显示装置包括：
    层叠设置于所述盖板一侧的一第一粘合层、一玻璃层及一第二粘合层，其中，所述玻璃层的至少一侧边缘相比所述第一粘合层及所述第二粘合层的对应边缘内缩形成内缩区域，在所述内缩区域内设置缓冲层。
  10. 根据权利要求9所述的显示装置，其中，所述玻璃层的材料为强化超薄玻璃。
  11. 根据权利要求10所述的显示装置，其中，所述玻璃层的四周相对于所述第一粘合层及所述第二粘合层的四周内缩，内缩的距离大于等于0.25mm。
  12. 根据权利要求9所述的显示装置，其中，所述缓冲层包括高分子胶材。
  13. 根据权利要求9所述的显示装置，其中，所述第一粘合层的材料为透明光学胶；所述第二粘合层的材料为透明光学胶。
  14. 根据权利要求9所述的显示装置，其中，所述显示装置具有一主显示区和一边缘区，在所述盖板靠近所述第一粘合层的一侧设置有一遮光层，所述遮光层设置于所述边缘区内。
  15. 根据权利要求14所述的显示装置，其中，所述遮光层在所述盖板上的正投影覆盖所述内缩区域在所述盖板上的正投影。
  16. 根据权利要求9所述的显示装置，其中，所述显示装置还包括显示模组，所述显示模组包括层叠设置的一功能控制层和一显示膜层，所述功能控制层设置于所述玻璃层远离所述盖板的一侧，所述显示膜层设置于所述功能控制层远离所述玻璃层的一侧。
  17. 根据权利要求16所述的显示装置，其中，所述显示膜层为柔性OLED显示面板；所述功能控制层为触控层或偏光片中的至少一种。
  18. 根据权利要求16所述的显示装置，其中，所述显示装置还包括：一背板层，所述背板层位于所述显示模组远离所述盖板的一侧。
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