WO2018223477A1 - 一种显示屏 - Google Patents

一种显示屏 Download PDF

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Publication number
WO2018223477A1
WO2018223477A1 PCT/CN2017/092003 CN2017092003W WO2018223477A1 WO 2018223477 A1 WO2018223477 A1 WO 2018223477A1 CN 2017092003 W CN2017092003 W CN 2017092003W WO 2018223477 A1 WO2018223477 A1 WO 2018223477A1
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WIPO (PCT)
Prior art keywords
cathode
anode
insulating film
display screen
organic insulating
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Ceased
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PCT/CN2017/092003
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English (en)
French (fr)
Inventor
陈彩琴
赵瑜
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US15/550,482 priority Critical patent/US20190386090A1/en
Publication of WO2018223477A1 publication Critical patent/WO2018223477A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H10K59/124—Insulating layers formed between TFT elements and OLED elements
    • 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
    • H10K50/805—Electrodes
    • H10K50/81—Anodes
    • 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
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • H10K50/822—Cathodes characterised by their shape
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80524—Transparent cathodes, e.g. comprising thin metal layers
    • 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

Definitions

  • the present invention relates to the field of display devices, and in particular, to a display screen.
  • a flexible organic light emitting diode display is a novel display for fabricating thin film transistors and organic light emitting diodes on flexible and flexible substrates.
  • most of the small-sized organic light-emitting diode screens are mostly made of a top-emitting structure.
  • the organic barrier layer near the junction of the cathode and the anode should be flat, but the anode is affected by the development of the organic barrier layer.
  • a cathode break is formed underneath, so that the integrated circuit board signal cannot be transmitted to the anode of the display area, resulting in poor curl display.
  • the present invention provides a display screen.
  • the present invention provides a display screen including an integrated circuit board and an organic insulating film
  • a plurality of grooves are equally disposed on the organic insulating film, and a cathode is disposed on the organic insulating film;
  • the cathode is buried in the groove to be in contact with the power signal line or an anode is disposed on the cathode, and the anode is buried in the groove to be in contact with the power signal line.
  • the cathode is made of magnesium or aluminum.
  • the cathode has a thickness of 800-1200A.
  • the cathode has a thickness of 1000A.
  • the organic insulating film is flat.
  • the above display screen further includes a thin film transistor connected to the integrated circuit board.
  • the above display screen further includes an organic light emitting diode connected to the integrated circuit board.
  • the anode is disconnected from the edge of the organic insulating film.
  • the display screen provided by the present invention has a plurality of slots equally disposed on the organic insulating film by providing a power signal line on the integrated circuit board, and the cathode is disposed on the organic insulating film.
  • the cathode is buried in the groove and is in contact with the power signal line, so that the organic insulating film near the junction of the anode and the cathode is flat, and the cathode is not broken under the anode, so that the signal of the integrated circuit board is transmitted to the cathode of the display area, and the cathode is not caused.
  • the panel is not displayed well.
  • An anode is disposed on the cathode, and the anode is buried in the groove to be in contact with the power signal line.
  • the anode width is narrowed and buried in the trench, that is, the anode and the edge of the organic insulating film are discontinuously discontinuous, so that the organic insulating film near the boundary between the anode and the cathode is prevented from becoming uneven after development of the post-process organic barrier layer.
  • the anode edge forms a dead space and the cathode is broken.
  • FIG. 1 is a cross-sectional view of a display screen in one embodiment of the present application.
  • FIG. 2 is a top plan view of a display screen in one embodiment of the present application.
  • FIG 3 is a cross-sectional view of a display screen in another embodiment of the present application.
  • a display screen includes an integrated circuit board (IC) and an organic insulating film (PLN) 3; wherein a power signal line 4 (Vss) is disposed on the integrated circuit board.
  • IC integrated circuit board
  • PPN organic insulating film
  • Vss power signal line 4
  • a plurality of grooves 5 are equally disposed on the organic insulating film 3, and a cathode 2 is disposed on the organic insulating film 3, and the cathode 2 is buried in the groove 5 and the power source Signal 4 line contact.
  • the organic insulating film 3 in the vicinity of the boundary between the anode 1 and the cathode 2 is flattened, and the cathode 2 is formed under the anode 1 so as not to be broken, so that the integrated circuit board signal is transmitted to the cathode 2 of the display region, and the panel display is not deteriorated.
  • an anode 1 (Anode) is disposed on the cathode 2, and the anode 1 is buried in the groove 5 in contact with the power signal line 4.
  • Digging the organic insulating film 3 from the small hole The design is changed into a large groove 5, and the width of the anode 1 is narrowed and buried in the groove 5, that is, the edges of the anode 1 and the organic insulating film 3 are discontinuously discontinuous, thereby preventing organic insulation near the boundary between the anode 1 and the cathode 2.
  • the film 3 becomes uneven after development of the post-process organic barrier layer, forming an undercut at the edge of the anode 1 to cause the cathode 2 to be broken.
  • the cathode 2 routing structure is of magnesium or aluminum (Mg or Al).
  • the cathode 2 trace structure has a thickness of 800-1200 A (Ami) to ensure transmittance.
  • the thickness of the trace structure of the cathode 2 is 1000 A (Amy). Since the thickness is relatively thin, the cathode 2 of the display area (AA) is covered with the entire surface, and when it is taken out from the display area, it is required to pass through the anode 1 The groove passing through the organic insulating film 3 is connected to the potential trace and introduced to the integrated circuit board.
  • the organic insulating film 3 near the boundary between the anode 1 and the cathode 2 is flat. Without affecting the development of the transparent organic barrier layer (PDL), the cathode 2 under the anode 1 is not easily disconnected, and the cathodes 2 on the left and right sides are not easily broken, and the signal of the integrated circuit board can be transmitted to the cathode 2 of the display area without causing curling. The display is good.
  • PDL transparent organic barrier layer
  • a thin film transistor (TFT) coupled to the integrated circuit board is also included.
  • TFT thin film transistor
  • an organic light emitting diode (AMOLED) coupled to the integrated circuit board is also included.
  • AMOLED organic light emitting diode
  • the anode 1 is disconnected from the edge of the organic insulating film 3 without being connected.
  • the organic insulating film 3 is grooved 5, changed from a small hole to a large groove 5, and the width of the anode 1 is narrowed, and buried in the groove 5 of the organic insulating film 3, that is, the anode 1 and
  • the edge of the organic insulating film 3 is discontinuously discontinuous, so that the cathode 2 near the boundary between the anode 1 and the cathode 2 is prevented from becoming uneven after development of the post-process organic transparent barrier layer, and a depression is formed at the edge of the anode 1 to cause the cathode 2 to be disconnected. .
  • the bridge anode 1 between the cathode 2 and the anode 1 is removed, so that the cathode 2 directly contacts the anode 1 (the contact resistance is slightly increased).

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种显示屏，包括：集成电路板和有机绝缘膜；其中，在集成电路板上设置有电源信号线（4）；在有机绝缘膜上均等设置有多个槽（5），阴极（2）设在有机绝缘膜上；阴极（2）埋入槽（5）内与电源信号线（4）接触或在阴极（2）上设置阳极（1），阳极（1）埋入槽（5）内与电源信号线（4）接触，使阳极（1）和阴极（2）交界附近的有机绝缘膜平坦，在阳极（1）下方形成的阴极（2）不会断开，使得集成电路板信号传递到显示区的阴极（2），不会造成面板显示不良。阳极（1）宽度变窄，埋入槽（5）内，即将阳极（1）和有机绝缘膜边缘断开不连续，这样防止在阳极（1）和阴极（2）交界附近的有机绝缘膜在制成有机阻挡层显影后，变得不平坦，在阳极（1）边缘形成死角而使得阴极（2）断开。

Description

一种显示屏
相关申请的交叉引用
本申请要求享有于2017年06月06日提交的名称为“一种显示屏”的中国专利申请CN201710417287.1的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明涉及显示装置技术领域，尤其涉及一种显示屏。
背景技术
柔性有机发光二极管显示屏，是一种在柔性可弯曲基板上制作薄膜晶体管和有机发光二极管的新型显示器。目前最常见的小尺寸有机发光二极管屏，大多采用顶发光结构，对于显示区阴极整面覆盖，在阴极和阳极交界附近的有机阻挡层本应该平坦，但由于有机阻挡层显影等影响，在阳极下方形成阴极断开，使得集成电路板信号无法传递到显示区的阳极，造成卷曲显示不良。
发明内容
针对上述问题中存在的不足之处，本发明提供一种显示屏。
为实现上述目的，本发明提供一种显示屏，包括，集成电路板和有机绝缘膜；其中，
在所述集成电路板上设置有电源信号线；
在所述有机绝缘膜上均等设置有多个槽，阴极设在所述有机绝缘膜上；
所述阴极埋入所述槽内与所述电源信号线接触或在所述阴极上设置阳极，所述阳极埋入所述槽内与所述电源信号线接触。
上述的显示屏，所述阴极为镁或铝材质。
上述的显示屏，所述阴极厚度为800-1200A。
上述的显示屏，所述阴极厚度为1000A。
上述的显示屏，所述有机绝缘膜为平坦设置。
上述的显示屏，还包括与所述集成电路板连接的薄膜晶体管。
上述的显示屏，还包括与所述集成电路板连接的有机发光二极管。
上述的显示屏，所述阳极与所述有机绝缘膜边缘断开不连接。
在上述技术方案中，本发明提供的显示屏，与现有技术相比，通过在集成电路板上设置有电源信号线，有机绝缘膜上均等设置有多个槽，阴极设在有机绝缘膜上，阴极埋入槽内与电源信号线接触，使阳极和阴极交界附近的有机绝缘膜平坦，在阳极下方形成阴极的不会断开，使得集成电路板信号传递到显示区区的阴极，不会造成面板显示不良。在阴极上设置阳极，阳极埋入槽内与电源信号线接触。阳极宽度变窄，埋入挖槽内，即将阳极和有机绝缘膜边缘断开不连续，这样防止在阳极和阴极交界附近的有机绝缘膜在后制程有机阻挡层显影后，变得不平坦，在阳极边缘形成死角而使得阴极断开。
上述技术特征可以各种适合的方式组合或由等效的技术特征来替代，只要能够达到本发明的目的。
附图说明
在下文中将基于实施例并参考附图来对本发明进行更详细的描述。
图1为本申请的一个实施例中显示屏的截面图。
图2为本申请的一个实施例中显示屏俯视图。
图3为本申请的另一个实施例中显示屏的截面图。
在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例描绘。
具体实施方式
下面将结合附图对本发明作进一步说明。
如图1-2所示，显示屏，包括：集成电路板(IC)和有机绝缘膜(PLN)3；其中，在所述集成电路板上设置有电源信号线4(Vss)。在所述有机绝缘膜3上均等设置有多个槽5(图2)，阴极(cathode)2设置在所述有机绝缘膜3上，所述阴极2埋入所述槽5内与所述电源信号4线接触。使阳极1和阴极2交界附近的有机绝缘膜3平坦，在阳极1下方形成阴极2的不会断开，使得集成电路板信号传递到显示区区的阴极2，不会造成面板显示不良。
在一个实施例中，图3所示，在所述阴极2上设置阳极1(Anode)，所述阳极1埋入所述槽5内与所述电源信号线4接触。将有机绝缘膜3挖孔，从小孔 设计，变更成大片挖槽5，且阳极1宽度变窄，埋入挖槽5内，即将阳极1和有机绝缘膜3边缘断开不连续，这样防止在阳极1和阴极2交界附近的有机绝缘膜3在后制程有机阻挡层显影后，变得不平坦，在阳极1边缘形成死角(under cut)而使得阴极2断开。
在一个优选的实施例中，阴极2走线结构为镁或铝(Mg或Al)材质。
在一个实施例中，阴极2走线结构厚度为800-1200A(埃米)，可保证透过率。
在一个优选的实施例中，阴极2走线结构厚度为1000A(埃米)，由于厚度比较薄，对于显示区(AA)阴极2整面覆盖，其从显示区引出时，需通过阳极1穿过有机绝缘膜3的槽连接到电位走线，引入到集成电路板。
在一个实施例中，在阳极1和阴极2交界附近的有机绝缘膜3为平坦设置。不影响透明有机阻挡层(PDL)显影，阳极1下方阴极2不会轻易断开，左右上三边阴极2不易断开，集成电路板信号可传递到显示区的阴极2，不会造成卷曲，显示效果好。
在一个实施例中，还包括与集成电路板连接的薄膜晶体管(TFT)。
在一个实施例中，还包括与集成电路板连接的有机发光二极管(AMOLED)。
在一个实施例中，阳极1与有机绝缘膜3边缘断开不连接。
在一个实施例中，将有机绝缘膜3挖槽5，从小孔设计，变更成大片挖槽5，且阳极1宽度变窄，埋入有机绝缘膜3的挖槽5内，即将阳极1和有机绝缘膜3边缘断开不连续，这样防止在阳极1和阴极2交界附近的阴极2在后制程有机透明阻挡层显影后，变得不平坦，在阳极1边缘形成凹陷而使得阴极2断开。将阴极2与阳极1之间的桥接阳极1去掉，使得阴极2直接接触阳极1(接触阻抗稍微增加)。
虽然已经参考优选实施例对本发明进行了描述，但在不脱离本发明的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本发明并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (14)

  1. 一种显示屏，其中，包括：
    集成电路板和有机绝缘膜；其中，
    在所述集成电路板上设置有电源信号线；
    在所述有机绝缘膜上均等设置有多个槽，阴极设在所述有机绝缘膜上；
    所述阴极埋入所述槽内与所述电源信号线接触或在所述阴极上设置阳极，所述阳极埋入所述槽内与所述电源信号线接触。
  2. 根据权利要求1所述的显示屏，其中，还包括与所述集成电路板连接的薄膜晶体管。
  3. 根据权利要求2所述的显示屏，其中，还包括与所述集成电路板连接的有机发光二极管。
  4. 根据权利要求3所述的显示屏，其中，所述阴极为镁或铝材质。
  5. 根据权利要求4所述的显示屏，其中，所述有机绝缘膜为平坦设置。
  6. 根据权利要求5所述的显示屏，其中，所述阳极与所述有机绝缘膜边缘断开不连接。
  7. 根据权利要求1所述的显示屏，其中，所述阴极为镁或铝材质。
  8. 根据权利要求7所述的显示屏，其中，所述阴极厚度为800-1200A。
  9. 根据权利要求8所述的显示屏，其中，所述阴极厚度为1000A。
  10. 根据权利要求9所述的显示屏，其中，还包括与所述集成电路板连接的薄膜晶体管。
  11. 根据权利要求9所述的显示屏，其中，还包括与所述集成电路板连接的有机发光二极管。
  12. 根据权利要求1所述的显示屏，其中，所述有机绝缘膜为平坦设置。
  13. 根据权利要求1所述的显示屏，其中，所述阳极与所述有机绝缘膜边缘断开不连接。
  14. 根据权利要求1所述的显示屏，其中，还包括与所述集成电路板连接的有机发光二极管。
PCT/CN2017/092003 2017-06-06 2017-07-06 一种显示屏 Ceased WO2018223477A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/550,482 US20190386090A1 (en) 2017-06-06 2017-07-06 Display screen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710417287.1 2017-06-06
CN201710417287.1A CN107170788A (zh) 2017-06-06 2017-06-06 一种显示屏

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WO2018223477A1 true WO2018223477A1 (zh) 2018-12-13

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US (1) US20190386090A1 (zh)
CN (1) CN107170788A (zh)
WO (1) WO2018223477A1 (zh)

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CN108649141B (zh) * 2018-05-14 2020-06-23 云谷（固安）科技有限公司 显示屏及其制备方法
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