WO2021082178A1 - 可拉伸有机发光二极管显示面板 - Google Patents

可拉伸有机发光二极管显示面板 Download PDF

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Publication number
WO2021082178A1
WO2021082178A1 PCT/CN2019/123239 CN2019123239W WO2021082178A1 WO 2021082178 A1 WO2021082178 A1 WO 2021082178A1 CN 2019123239 W CN2019123239 W CN 2019123239W WO 2021082178 A1 WO2021082178 A1 WO 2021082178A1
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Prior art keywords
units
hole
layer
perforated area
display panel
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PCT/CN2019/123239
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English (en)
French (fr)
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王雷
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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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Priority to US16/631,181 priority Critical patent/US11373558B2/en
Publication of WO2021082178A1 publication Critical patent/WO2021082178A1/zh

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    • 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
    • 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
    • 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
    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • 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
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/123—Connection of the pixel electrodes to the thin film transistors [TFT]

Definitions

  • the present invention relates to a stretchable organic light emitting diode (Organic Light emitting Diode, OLED) display panel, which includes at least one hole unit with intersecting perforated regions that can and can improve the stretch of the organic light emitting diode display panel. At the same time, it can allow sufficient island units, that is, light-emitting display units to be distributed on the OLED display panel, thereby providing the stretchable function of the stretchable OLED display panel while maintaining its high resolution.
  • OLED Organic Light emitting Diode
  • OLED display panels need to be provided with island units, bridge units, hole units, etc. on their own structure.
  • the hole units are S-shaped and occupy the poles of the display panel. Large area, and the position of the hole unit (dug area) cannot be used for pixel layout.
  • the S-shaped hole unit causes many places on the surface of the OLED display panel to be unable to layout pixels, so the resolution of the OLED display panel is limited and difficult to improve.
  • the present invention provides a stretchable organic light emitting diode display panel to solve the problem of stretchable organic light emitting diode (Organic Light
  • OLED emitting Diode
  • the resolution of the emitting Diode (OLED) display panel is limited and difficult to improve, and the elastic deformation ability of the stretchable OLED display panel is limited, and the stretching amount cannot reach the desired value.
  • the main purpose of the present invention is to provide an organic light emitting diode (OLED) display panel, including:
  • the panel body includes an elastic substrate
  • a plurality of first hole units are formed through the panel body, each of the first hole units includes at least one perforated area that crosses each other, and each of the first hole units includes a middle perforated area and two side perforated areas , The middle perforated area is elongated, and the two side perforated areas are elongated, respectively connected to the two ends of the middle perforated area, and are connected to the middle perforated area of the two side perforated areas.
  • Vertical wherein each of the hole units is a stretching unit;
  • a plurality of bridge groups are formed on the panel body and respectively correspond to the plurality of first hole units, each of the bridge groups includes a plurality of bridge units, and the plurality of bridge units are adjacent to the corresponding first hole unit On both sides of the middle perforated area, wherein each of the bridge units is a wiring unit;
  • a plurality of island groups are formed on the panel body and respectively correspond to the plurality of first hole units, each of the island groups includes a plurality of island units, and the plurality of island units are adjacent to the corresponding first hole unit In the perforated areas on both sides, each of the island units is a light-emitting display unit.
  • the elastic substrate is polydimethylsiloxane (polydimethylsiloxane, PDMS).
  • the elastic substrate is polydimethylsiloxane (polydimethylsiloxane, PDMS), and a part of the elastic substrate is a heat-cured part with low elasticity, and the remaining part is a non-heat-cured part with high elasticity.
  • PDMS polydimethylsiloxane
  • the number of bridge units of each bridge group is two, and the two bridge units are respectively adjacent to two sides of the middle perforated area of the corresponding first hole unit.
  • the number of island units in each island group is four, and the four island units are respectively adjacent to the end of the side perforated area of the corresponding first hole unit.
  • the organic light emitting diode (Organic Light The emitting Diode (OLED) display panel further includes a plurality of second hole units formed through the panel body.
  • Each second hole unit includes at least one perforated area that crosses each other, and includes a middle perforated area and two side perforations. Area, the middle perforated area is elongated, the two side perforated areas are elongated, respectively connected to the two ends of the middle perforated area, and are connected to the middle perforated area of the two side perforated areas The area is vertical.
  • the plurality of first hole units and the plurality of second hole units are arranged in a staggered manner.
  • each of the first hole units is located between two adjacent second hole units.
  • each of the island units includes the elastic substrate, the barrier layer, the buffer layer, the active layer, the first gate insulating layer, and the first gate metal stacked in sequence.
  • each of the bridge units includes the elastic substrate, the barrier layer, the metal wiring layer, the planarization layer image, and the pixel definition layer stacked in sequence. , And the thin film encapsulation layer.
  • Another object of the present invention is to provide an organic light emitting diode display panel, including:
  • the panel body includes an elastic substrate
  • a plurality of first hole units are formed through the panel body, each of the first hole units includes at least one perforated area that crosses each other, and each of the first hole units includes a middle perforated area and two side perforated areas , The middle perforated area is elongated, the two side perforated areas are elongated, respectively connected to the two ends of the middle perforated area, and the two side perforated areas are connected to the middle perforated area.
  • Vertical wherein each of the hole units is a stretching unit;
  • a plurality of bridge groups are formed on the panel body and respectively correspond to the plurality of first hole units, each of the bridge groups includes a plurality of bridge units, and the plurality of bridge units are adjacent to the corresponding first hole unit On both sides of the middle perforated area, wherein each of the bridge units is a wiring unit;
  • a plurality of island groups are formed on the panel body and respectively correspond to the plurality of first hole units, each of the island groups includes a plurality of island units, and the plurality of island units are adjacent to the corresponding first hole unit In the perforated areas on both sides, each of the island units is a light-emitting display unit;
  • the number of bridge units in each bridge group is two, and the two bridge units are respectively adjacent to both sides of the middle perforated area of the corresponding first hole unit;
  • the organic light emitting diode display panel further includes a plurality of second hole units formed through the panel body, and each second hole unit includes at least one perforated area that crosses each other, and includes a middle perforated area and two side edges Perforated area, the middle perforated area is elongated, the two side perforated areas are elongated, respectively connected to both ends of the middle perforated area, and the two side perforated areas are connected to the middle perforated area.
  • the perforated area is vertical.
  • the number of island units in each island group is four, and the four island units are respectively adjacent to the end of the side perforated area of the corresponding first hole unit.
  • the plurality of first hole units and the plurality of second hole units are arranged in a staggered manner.
  • each of the first hole units is located between two adjacent second hole units.
  • each of the island units includes the elastic substrate, the barrier layer, the buffer layer, the active layer, the first gate insulating layer, and the first gate metal stacked in sequence.
  • each of the bridge units includes the elastic substrate, the barrier layer, the metal wiring layer, the planarization layer image, and the pixel definition layer stacked in sequence. , And the thin film encapsulation layer.
  • the hole unit of the stretchable OLED display panel of the present invention has a middle perforated area and a side perforated area that are perpendicular to each other.
  • the geometric shape of the hole unit conforms to the geometric shape of the island unit, which is beneficial for densely arranging a plurality of island units around each hole unit. Therefore, the setting of hole units will not significantly reduce the number of island units. Therefore, the present invention can and can increase the stretching amount of the organic light emitting diode display panel while allowing sufficient island units, that is, the light emitting display units are distributed on the OLED display panel, thereby providing the flexibility of the stretchable OLED display panel. Stretching function while maintaining its high resolution.
  • the stretchable OLED display panel of the present invention can increase the heterogeneous deformation (stretching, dome, etc.) of the OLED through the hole unit including at least one intersecting perforated area, and is matched with PDMS substrate and orientation UV light thermal curing technology can be used to locally stretch and high-resolution OLED display panels on the PDMS substrate.
  • the present invention includes at least one hole unit with intersecting perforated areas. Compared with the S-shaped hole unit of the traditional stretchable display panel, the stretch of the OLED display panel can be increased by at least 10%.
  • FIG. 1 is a top view of a stretchable organic light emitting diode display panel of the present invention.
  • Fig. 2 is a partial enlarged side cross-sectional view of the stretchable organic light emitting diode display panel of the present invention.
  • FIG. 1 is a top view of a stretchable organic light emitting diode display panel of the present invention.
  • Fig. 2 is a partial enlarged side cross-sectional view of the stretchable organic light emitting diode display panel of the present invention.
  • Organic Light Emitting Diode (Organic Light The emitting Diode (OLED) display panel includes a panel body 10, a plurality of first hole units 20, a plurality of bridge groups, a plurality of island groups, and a plurality of second hole units 20a.
  • the panel body 10 includes an elastic substrate 11.
  • the plurality of first hole units 20 are formed through the panel body 10, and each of the first hole units 20 includes at least one perforated area that crosses each other.
  • the perforated area may be H-shaped, and the first The hole unit 20 includes a middle perforated area 21 and two side perforated areas 22.
  • the middle perforated area 21 is elongated, and the two side perforated areas 22 are elongated, respectively connected to the middle perforated area 21.
  • On both ends, and the two side perforated areas 22 are perpendicular to the middle perforated area 21, wherein each of the hole units is a stretching unit.
  • the plurality of bridge groups are formed on the panel body 10 and respectively correspond to the plurality of first hole units 20.
  • Each of the bridge groups includes a plurality of bridge units 30, and the plurality of bridge units 30 are adjacently and correspondingly On both sides of the middle perforated area 21 of the first hole unit 20, wherein each of the bridge units 30 is a wiring unit;
  • the plurality of island groups are formed on the panel body 10 and respectively correspond to the plurality of first hole units 20, each of the island groups includes a plurality of island units 40, and the plurality of island units 40 are adjacently and correspondingly The perforated regions 22 on both sides of the first hole unit 20 of, wherein each of the island units 40 is a light-emitting display unit.
  • the plurality of second hole units 20a are formed through the panel body 10, and each second hole unit 20a includes at least one intersecting perforated area.
  • the perforated area may be inverted H-shaped and includes a middle perforated area 21 And two side perforated areas 22, the middle perforated area 21 is elongated, the two side perforated areas 22 are elongated, respectively connected to the two ends of the middle perforated area 21, and the two The side perforated area 22 is perpendicular to the middle perforated area 21.
  • the panel body 10 includes a middle area 101 and two side areas 102 located on both sides of the middle area.
  • the plurality of first hole units 20 and the plurality of bridge groups The arrangement of the plurality of island groups and the plurality of second hole units 20a is a symmetrical arrangement pattern along the middle area 101 and the side area 102.
  • the elastic substrate 11 is polydimethylsiloxane (PDMS).
  • the elastic substrate 11 is polydimethylsiloxane (PDMS), and a part of the elastic substrate 11 is a thermally cured part with low elasticity, and the rest part It has high elasticity for the non-heat-cured part.
  • the number of bridge units 30 of each bridge group is two, and the two bridge units 30 are respectively adjacent to two sides of the middle perforated area 21 of the corresponding first hole unit 20.
  • the number of island units 40 of each island group is four, and the four island units 40 are respectively adjacent to the end of the side perforated area 22 of the corresponding first hole unit 20.
  • the plurality of first hole units 20 and the plurality of second hole units 20a are arranged in a staggered manner.
  • each of the first hole units 20 is located between two adjacent second hole units 20a.
  • polyimide (Polyimide, PI) substrate, barrier layer 12, buffer layer 13, active layer 1411, first gate insulating layer 141, first gate metal layer 151, second gate insulating layer 142, second gate metal layer 152 , The first interlayer insulating layer 161, and the second interlayer insulating layer 162. Then, the area where the bridge unit 30 is about to be formed and the area where the hole unit is about to be formed are etched to remove the buffer layer 13, the active layer 1411, the first gate insulating layer 141, and the first gate electrode.
  • PI Polyimide
  • the source and drain metal layer 163, the planarization layer 17, the anode layer 171, the light-emitting device 181, the pixel definition layer 18, and the thin film encapsulation layer 19 are stacked in sequence in the region where the island unit 40 is about to be formed.
  • a metal wiring layer 175, a planarization layer 17, a pixel definition layer 18, and a thin film encapsulation layer 19 are sequentially stacked.
  • the H-shaped hole unit of the stretchable OLED display panel of the present invention has a middle perforated area 21 and a side perforated area 22 that are perpendicular to each other.
  • a plurality of island units 40 are arranged, so the arrangement of H-shaped hole units does not significantly reduce the number of island units 40. Therefore, the present invention can increase the stretch of the organic light-emitting diode display panel while allowing sufficient island units 40, that is, the light-emitting display units are distributed on the OLED display panel, thereby providing a stretchable OLED display panel. It can be stretched while maintaining its high resolution.
  • the stretchable OLED display panel of the present invention can increase the heterogeneous deformation (stretching, dome, etc.) of the OLED through the H-shaped hole unit, and is matched with PDMS substrate and directional UV light thermal curing technology.
  • the H-shaped hole unit of the present invention can increase the stretching amount of the OLED display panel by at least 10% compared with the S-shaped hole unit of the traditional stretchable display panel.

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

Abstract

一种有机发光二极管显示面板，包括：面板本体、多个第一孔单元、多个桥组、以及多个岛组。所述面板本体包括一弹性衬底。所述第一孔单元，贯穿形成在所述面板本体上，各所述第一孔单元包括至少一相互交叉的穿孔区，且包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且与所述中间穿孔区垂直，其中，各所述孔单元为拉伸单元。所述桥组，形成在所述面板本体上，各所述桥单元为走线单元。所述岛组，形成在所述面板本体上，各所述岛单元为发光显示单元。包括至少一相互交叉的穿孔区的第一孔单元可提升显示面板的拉伸量。

Description

可拉伸有机发光二极管显示面板 技术领域
本发明是有关于一种可拉伸有机发光二极管(Organic Light emitting Diode, OLED)显示面板，其中包括至少一相互交叉的穿孔区的孔单元能够而能够在增进有机发光二极管显示面板的拉伸量的同时又能够允许充足的岛单元，即发光显示单元分布在OLED显示面板上，进而在提供可拉伸OLED显示面板的可拉伸功能的同时维持其高分辨率。
 背景技术
现有的可拉伸有机发光二极管(Organic Light emitting Diode, OLED)显示面板，其本身结构上需设置有岛单元、桥单元、孔单元等等，其中，孔单元为S形而占据显示面板极大的面积，而孔单元（挖孔区域）的位置无法进行像素布局，S形的孔单元导致OLED显示面板表面多处无法布局像素，因此OLED显示面板的分辨率受限而难以提高。此外，由于OLED显示面板的衬底为聚酰亚胺(Polyimide, PI)材料，弹性变形能力有限（变形量仅3%），使得可拉伸OLED显示面板的拉伸量无法达到理想的数值，极大地降低了可拉伸OLED显示面板的每英吋像素（PPI）和可任意变形能力，从而限制了可拉伸OLED的应用领域范围。
故，有必要提供一种可拉伸有机发光二极管显示面板，以解决现有技术所存在的问题。
 技术问题
有鉴于此，本发明提供一种可拉伸有机发光二极管显示面板，以解决现有技术所存在的可拉伸有机发光二极管(Organic Light emitting Diode, OLED)显示面板的分辨率受限而难以提高，且可拉伸OLED显示面板弹性变形能力有限，拉伸量无法达到理想的数值的技术问题。
 技术解决方案
本发明的主要目的在于提供一种有机发光二极管(Organic Light emitting Diode, OLED)显示面板，包括：
面板本体，包括一弹性衬底；
多个第一孔单元，贯穿形成在所述面板本体上，各所述第一孔单元包括至少一相互交叉的穿孔区，且各所述第一孔单元包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且与所述两侧边穿孔区所述中间穿孔区垂直，其中，各所述孔单元为拉伸单元；
多个桥组，形成在所述面板本体上，且分别对应所述多个第一孔单元，各所述桥组包括多个桥单元，所述多个桥单元邻近对应的第一孔单元的所述中间穿孔区的两侧，其中，各所述桥单元为走线单元；以及
多个岛组，形成在所述面板本体上，且分别对应所述多个第一孔单元，各所述岛组包括多个岛单元，所述多个岛单元邻近对应的第一孔单元的所述两侧边穿孔区，其中，各所述岛单元为发光显示单元。
在本发明的一实施例中，所述弹性衬底为聚二甲基硅氧烷(polydimethylsiloxane, PDMS)。
在本发明的一实施例中，所述弹性衬底为聚二甲基硅氧烷(polydimethylsiloxane, PDMS)，且所述弹性衬底一部分为热固化部分而具有低弹性，其余部分为非热固化部分而具有高弹性。
在本发明的一实施例中，各所述桥组的桥单元数量为两个，所述两桥单元分别邻近对应的第一孔单元的所述中间穿孔区的两侧。
在本发明的一实施例中，各所述岛组的岛单元数量为四个，所述四个岛单元分别邻近对应的第一孔单元的侧边穿孔区的末端。
在本发明的一实施例中，所述有机发光二极管(Organic Light emitting Diode, OLED)显示面板进一步包括多个第二孔单元，贯穿形成在所述面板本体上，各第二孔单元为包括至少一相互交叉的穿孔区，且包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且与所述两侧边穿孔区所述中间穿孔区垂直。
在本发明的一实施例中，所述多个第一孔单元与所述多个第二孔单元为交错配置。
在本发明的一实施例中，各所述第一孔单元位两相邻的所述第二孔单元之间。
在本发明的一实施例中，各所述岛单元包括依序堆迭设置的所述弹性衬底、阻障层、缓冲层、有源层、第一栅极绝缘层、第一栅极金属层、第二栅极绝缘层、第二栅极金属层、第一层间绝缘层、第二层间绝缘层、源极漏极金属层、平坦化层、阳极层、发光器件、像素定义层、以及薄膜封装层。
在本发明的一实施例中，各所述桥单元包括依序堆迭设置的所述弹性衬底、所述阻障层、金属走线层、所述平坦化层像、所述像素定义层、以及所述薄膜封装层。
本发明另一目的在于提供一种有机发光二极管显示面板，包括：
面板本体，包括一弹性衬底；
多个第一孔单元，贯穿形成在所述面板本体上，各所述第一孔单元包括至少一相互交叉的穿孔区，且各所述第一孔单元包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且所述两侧边穿孔区与所述中间穿孔区垂直，其中，各所述孔单元为拉伸单元；
多个桥组，形成在所述面板本体上，且分别对应所述多个第一孔单元，各所述桥组包括多个桥单元，所述多个桥单元邻近对应的第一孔单元的所述中间穿孔区的两侧，其中，各所述桥单元为走线单元；以及
多个岛组，形成在所述面板本体上，且分别对应所述多个第一孔单元，各所述岛组包括多个岛单元，所述多个岛单元邻近对应的第一孔单元的所述两侧边穿孔区，其中，各所述岛单元为发光显示单元；
其中，各所述桥组的桥单元数量为两个，所述两桥单元分别邻近对应的第一孔单元的所述中间穿孔区的两侧；
其中，所述有机发光二极管显示面板进一步包括多个第二孔单元，贯穿形成在所述面板本体上，各第二孔单元包括至少一相互交叉的穿孔区，且包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且所述两侧边穿孔区与所述中间穿孔区垂直。
在本发明的一实施例中，各所述岛组的岛单元数量为四个，所述四个岛单元分别邻近对应的第一孔单元的侧边穿孔区的末端。
在本发明的一实施例中，所述多个第一孔单元与所述多个第二孔单元为交错配置。
在本发明的一实施例中，各所述第一孔单元位两相邻的所述第二孔单元之间。
在本发明的一实施例中，各所述岛单元包括依序堆迭设置的所述弹性衬底、阻障层、缓冲层、有源层、第一栅极绝缘层、第一栅极金属层、第二栅极绝缘层、第二栅极金属层、第一层间绝缘层、第二层间绝缘层、源极漏极金属层、平坦化层、阳极层、发光器件、像素定义层、以及薄膜封装层。
在本发明的一实施例中，各所述桥单元包括依序堆迭设置的所述弹性衬底、所述阻障层、金属走线层、所述平坦化层像、所述像素定义层、以及所述薄膜封装层。
本发明可拉伸OLED显示面板的孔单元具有相互垂直的中间穿孔区以及侧边穿孔区，其几何形状符合岛单元的几何形状，有利于在每个孔单元的周围密集的布局多个岛单元，因此孔单元的设置不会显着降低岛单元的数量。因此，本发明能够而能够在增进有机发光二极管显示面板的拉伸量的同时又能够允许充足的岛单元，即发光显示单元分布在OLED显示面板上，进而在提供可拉伸OLED显示面板的可拉伸功能的同时维持其高分辨率。
 有益效果
与现有技术相比较，本发明的可拉伸OLED显示面板通过包括至少一相互交叉的穿孔区的孔单元能够提高OLED的异种变形量（拉伸，球顶等），搭配PDMS衬底和定向UV光照热固化技术，可在PDMS衬底局部可高度拉伸的以及高分辨率的OLED显示面板。此外，本发明包括至少一相互交叉的穿孔区的孔单元，相较于传统可拉伸显示面板的S形孔单元，可提升OLED显示面板拉伸量增加至少10%以上。
 附图说明
为让本发明的上述内容能更明显易懂，下文特举优选实施例，且配合所附图式，作详细说明如下：
图1是本发明可拉伸有机发光二极管显示面板的俯视图。
图2本发明可拉伸有机发光二极管显示面板的局部放大侧面剖视图。
 本发明的实施方式
请参照图1及图2，图1是本发明可拉伸有机发光二极管显示面板的俯视图。图2本发明可拉伸有机发光二极管显示面板的局部放大侧面剖视图。本发明有机发光二极管(Organic Light emitting Diode, OLED)显示面板，包括：面板本体10、多个第一孔单元20、多个桥组、多个岛组、以及多个第二孔单元20a。
所述面板本体10，包括一弹性衬底11。
所述多个第一孔单元20，贯穿形成在所述面板本体10上，各所述第一孔单元20包括至少一相互交叉的穿孔区，该穿孔区可为H形，且所述第一孔单元20包括中间穿孔区21以及二侧边穿孔区22，所述中间穿孔区21为长条状，所述两侧边穿孔区22为长条状，分别连接在所述中间穿孔区21的两端上，且所述两侧边穿孔区22与所述中间穿孔区21垂直，其中，各所述孔单元为拉伸单元。
所述多个桥组，形成在所述面板本体10上，且分别对应所述多个第一孔单元20，各所述桥组包括多个桥单元30，所述多个桥单元30邻近对应的第一孔单元20的所述中间穿孔区21的两侧，其中，各所述桥单元30为走线单元；以及
所述多个岛组，形成在所述面板本体10上，且分别对应所述多个第一孔单元20，各所述岛组包括多个岛单元40，所述多个岛单元40邻近对应的第一孔单元20的所述两侧边穿孔区22，其中，各所述岛单元40为发光显示单元。
所述多个第二孔单元20a，贯穿形成在所述面板本体10上，各第二孔单元20a包括至少一相互交叉的穿孔区，该穿孔区可为倒H形，且包括中间穿孔区21以及二侧边穿孔区22，所述中间穿孔区21为长条状，所述两侧边穿孔区22为长条状，分别连接在所述中间穿孔区21的两端上，且所述两侧边穿孔区22与所述中间穿孔区21垂直。
在本发明的一实施例中，所述面板本体10包括中间区域101、以及位于所述中间区域两侧的两侧边区域102，所述多个第一孔单元20、所述多个桥组、所述多个岛组、以及所述多个第二孔单元20a的排列方式是沿着根据所述中间区域101及所述侧边区域102而呈现左右对称排列图形。
在本发明的一实施例中，所述弹性衬底11为聚二甲基硅氧烷(polydimethylsiloxane, PDMS)。或者，在本发明的一实施例中，所述弹性衬底11为聚二甲基硅氧烷(polydimethylsiloxane, PDMS)，且所述弹性衬底11一部分为热固化部分而具有低弹性，其余部分为非热固化部分而具有高弹性。
在本发明的一实施例中，各所述桥组的桥单元30数量为两个，所述两桥单元30分别邻近对应的第一孔单元20的所述中间穿孔区21的两侧。在本发明的一实施例中，各所述岛组的岛单元40数量为四个，所述四个岛单元40分别邻近对应的第一孔单元20的侧边穿孔区22的末端。
在本发明的一实施例中，所述多个第一孔单元20与所述多个第二孔单元20a为交错配置。
在本发明的一实施例中，各所述第一孔单元20位两相邻的所述第二孔单元20a之间。
在本发明的一实施例中，各所述岛单元40包括依序堆迭设置的所述弹性衬底11、阻障层12、缓冲层13、有源层1411、第一栅极绝缘层141、第一栅极金属层151、第二栅极绝缘层142、第二栅极金属层152、第一层间绝缘层161、第二层间绝缘层162、源极漏极金属层163、平坦化层17、阳极层171、发光器件181、像素定义层18、以及薄膜封装层19。
在本发明的一实施例中，各所述桥单元30包括依序堆迭设置的所述弹性衬底11、所述阻障层12、金属走线层175、所述平坦化层17像、所述像素定义层、以及所述薄膜封装层19。
关于本发明OLED显示面板的制程，主要是依序堆迭设置聚酰亚胺(Polyimide, PI)衬底、阻障层12、缓冲层13、有源层1411、第一栅极绝缘层141、第一栅极金属层151、第二栅极绝缘层142、第二栅极金属层152、第一层间绝缘层161、以及第二层间绝缘层162。接着，对即将形成桥单元30的区域以及即将形成孔单元的区域进行蚀刻，去除所述缓冲层13、所述有源层1411、所述第一栅极绝缘层141、所述第一栅极金属层151、所述第二栅极绝缘层142、所述第二栅极金属层152、所述第一层间绝缘层161、以及所述第二层间绝缘层162。接着，在即将形成岛单元40的区域依序堆迭设置源极漏极金属层163、平坦化层17、阳极层171、发光器件181、像素定义层18、以及薄膜封装层19，并在即将形成桥单元30的区域依序堆迭金属走线层175、平坦化层17、像素定义层18、以及薄膜封装层19。接着，对即将孔单元的区域进行蚀刻挖孔。
本发明可拉伸OLED显示面板的H形孔单元具有相互垂直的中间穿孔区21以及侧边穿孔区22，其几何形状符合岛单元40的几何形状，有利于在每个孔单元的周围密集的布局多个岛单元40，因此H形孔单元的设置不会显着降低岛单元40的数量。因此，本发明能够而能够在增进有机发光二极管显示面板的拉伸量的同时又能够允许充足的岛单元40，即发光显示单元分布在OLED显示面板上，进而在提供可拉伸OLED显示面板的可拉伸功能的同时维持其高分辨率。
与现有技术相比较，本发明的可拉伸OLED显示面板通过H形的孔单元能够提高OLED的异种变形量（拉伸，球顶等），搭配PDMS衬底和定向UV光照热固化技术，可在PDMS衬底局部可高度拉伸的以及高分辨率的OLED显示面板。此外，本发明H形的孔单元，相较于传统可拉伸显示面板的S形孔单元，可提升OLED显示面板拉伸量增加至少10%以上。

Claims (16)

  1. 一种有机发光二极管显示面板，包括：
    面板本体，包括一弹性衬底；
    多个第一孔单元，贯穿形成在所述面板本体上，各所述第一孔单元包括至少一相互交叉的穿孔区，且各所述第一孔单元包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且所述两侧边穿孔区与所述中间穿孔区垂直，其中，各所述孔单元为拉伸单元；
    多个桥组，形成在所述面板本体上，且分别对应所述多个第一孔单元，各所述桥组包括多个桥单元，所述多个桥单元邻近对应的第一孔单元的所述中间穿孔区的两侧，其中，各所述桥单元为走线单元；以及
    多个岛组，形成在所述面板本体上，且分别对应所述多个第一孔单元，各所述岛组包括多个岛单元，所述多个岛单元邻近对应的第一孔单元的所述两侧边穿孔区，其中，各所述岛单元为发光显示单元。
  2. 如权利要求1所述的有机发光二极管显示面板，其中，所述弹性衬底为聚二甲基硅氧烷。
  3. 如权利要求1所述的有机发光二极管显示面板，其中，所述弹性衬底为聚二甲基硅氧烷，且所述弹性衬底一部分为热固化部分而具有低弹性，其余部分为非热固化部分而具有高弹性。
  4. 如权利要求1所述的有机发光二极管显示面板，其中，各所述桥组的桥单元数量为两个，所述两桥单元分别邻近对应的第一孔单元的所述中间穿孔区的两侧。
  5. 如权利要求1所述的有机发光二极管显示面板，其中，各所述岛组的岛单元数量为四个，所述四个岛单元分别邻近对应的第一孔单元的侧边穿孔区的末端。
  6. 如权利要求1所述的有机发光二极管显示面板，其中，所述有机发光二极管显示面板进一步包括多个第二孔单元，贯穿形成在所述面板本体上，各第二孔单元包括至少一相互交叉的穿孔区，且包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且所述两侧边穿孔区与所述中间穿孔区垂直。
  7. 如权利要求6所述的有机发光二极管显示面板，其中，所述多个第一孔单元与所述多个第二孔单元为交错配置。
  8. 如权利要求6所述的有机发光二极管显示面板，其中，各所述第一孔单元位两相邻的所述第二孔单元之间。
  9. 如权利要求1所述的有机发光二极管显示面板，其中，各所述岛单元包括依序堆迭设置的所述弹性衬底、阻障层、缓冲层、有源层、第一栅极绝缘层、第一栅极金属层、第二栅极绝缘层、第二栅极金属层、第一层间绝缘层、第二层间绝缘层、源极漏极金属层、平坦化层、阳极层、发光器件、像素定义层、以及薄膜封装层。
  10. 如权利要求1所述的有机发光二极管显示面板，其中，各所述桥单元包括依序堆迭设置的所述弹性衬底、所述阻障层、金属走线层、所述平坦化层像、所述像素定义层、以及所述薄膜封装层。
  11. 一种有机发光二极管显示面板，包括：
    面板本体，包括一弹性衬底；
    多个第一孔单元，贯穿形成在所述面板本体上，各所述第一孔单元包括至少一相互交叉的穿孔区，且各所述第一孔单元包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且所述两侧边穿孔区与所述中间穿孔区垂直，其中，各所述孔单元为拉伸单元；
    多个桥组，形成在所述面板本体上，且分别对应所述多个第一孔单元，各所述桥组包括多个桥单元，所述多个桥单元邻近对应的第一孔单元的所述中间穿孔区的两侧，其中，各所述桥单元为走线单元；以及
    多个岛组，形成在所述面板本体上，且分别对应所述多个第一孔单元，各所述岛组包括多个岛单元，所述多个岛单元邻近对应的第一孔单元的所述两侧边穿孔区，其中，各所述岛单元为发光显示单元；
    其中，各所述桥组的桥单元数量为两个，所述两桥单元分别邻近对应的第一孔单元的所述中间穿孔区的两侧；
    其中，所述有机发光二极管显示面板进一步包括多个第二孔单元，贯穿形成在所述面板本体上，各第二孔单元包括至少一相互交叉的穿孔区，且包括中间穿孔区以及二侧边穿孔区，所述中间穿孔区为长条状，所述两侧边穿孔区为长条状，分别连接在所述中间穿孔区的两端上，且所述两侧边穿孔区与所述中间穿孔区垂直。
  12. 如权利要求11所述的有机发光二极管显示面板，其中，各所述岛组的岛单元数量为四个，所述四个岛单元分别邻近对应的第一孔单元的侧边穿孔区的末端。
  13. 如权利要求11所述的有机发光二极管显示面板，其中，所述多个第一孔单元与所述多个第二孔单元为交错配置。
  14. 如权利要求11所述的有机发光二极管显示面板，其中，各所述第一孔单元位两相邻的所述第二孔单元之间。
  15. 如权利要求11所述的有机发光二极管显示面板，其中，各所述岛单元包括依序堆迭设置的所述弹性衬底、阻障层、缓冲层、有源层、第一栅极绝缘层、第一栅极金属层、第二栅极绝缘层、第二栅极金属层、第一层间绝缘层、第二层间绝缘层、源极漏极金属层、平坦化层、阳极层、发光器件、像素定义层、以及薄膜封装层。
  16. 如权利要求11所述的有机发光二极管显示面板，其中，各所述桥单元包括依序堆迭设置的所述弹性衬底、所述阻障层、金属走线层、所述平坦化层像、所述像素定义层、以及所述薄膜封装层。
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