WO2015024320A1 - 避免有机发光二极管显示设备中金属线路短路的方法 - Google Patents
避免有机发光二极管显示设备中金属线路短路的方法 Download PDFInfo
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- WO2015024320A1 WO2015024320A1 PCT/CN2013/088052 CN2013088052W WO2015024320A1 WO 2015024320 A1 WO2015024320 A1 WO 2015024320A1 CN 2013088052 W CN2013088052 W CN 2013088052W WO 2015024320 A1 WO2015024320 A1 WO 2015024320A1
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- 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
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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
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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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
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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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
- H10K59/80—Constructional details
- H10K59/805—Electrodes
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- 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
- H10K2102/341—Short-circuit prevention
Definitions
- the present invention relates to the field of organic light emitting diode display devices, and more particularly to a method for avoiding short circuit of metal lines in an organic light emitting diode display device.
- OLED Organic Light Emitting Diode
- FIG. 1 is a top view of a part of a component layout of an organic light emitting diode display device in the prior art
- FIG. 2 is a cross-sectional view of FIG. 1 along a line AA'.
- the process of manufacturing the organic light emitting diode display device is to first manufacture a plurality of thin film transistors on a substrate (not shown) as a switching element, and then fabricate an organic light emitting diode as a light emitting element.
- the main steps of manufacturing the thin film transistor and the organic light emitting diode include first forming a gate layer (not shown) and a semiconductor layer (not shown) on the substrate (not shown), and then forming an inorganic layer 100, A metal layer is then formed on the inorganic layer 100, the metal layer comprising metal lines 102, 104 for respectively transmitting separate signals, that is, for transmitting different signals, followed by the metal lines 102, 104.
- ITO Indium Tin Oxide
- the indium tin oxide layer 108 after depositing the indium tin oxide layer 108 and forming a photoresist layer (not shown) in the indium tin oxide layer 108, due to the organic layer 106 The thickness is too thick, and when the exposure step is performed, the bottom of the indium tin oxide layer 108 is blocked by the top of the organic layer 106 and the light is not illuminated, that is, the organic layer 106 has a shadow effect, so After the etching step is performed and the photoresist layer (not shown) is removed, as shown in FIG. 2, the indium tin oxide layer 108 remains, which in turn causes the metal lines 102, 104 of FIG. 1 to be short-circuited.
- a method for avoiding short circuit of a metal line in an organic light emitting diode display device provided by the present invention includes:
- An indium tin oxide layer is formed on the organic layer.
- the step of forming the opening in the inorganic layer to expose a portion of the substrate includes:
- the method further includes:
- the negative photoresist layer on the inorganic layer is stripped.
- the two metal lines serve as a source.
- the two metal lines serve as a drain.
- the two metal lines are formed by a wet etching method.
- a method for avoiding short circuit of a metal line in an organic light emitting diode display device includes:
- An indium tin oxide layer is formed on the organic layer.
- the step of forming the opening in the inorganic layer to expose a portion of the substrate includes:
- the method further includes:
- the negative photoresist layer on the inorganic layer is stripped.
- the two metal lines serve as a source.
- the two metal lines serve as a drain.
- the organic layer covers at least a portion of the two metal lines.
- the two metal lines are formed by a wet etching method.
- the method for avoiding short circuit of a metal line in an organic light emitting diode display device of the present invention ensures that a short circuit does not occur between the metal lines by forming the openings in the inorganic layer.
- FIG. 1 is a top view of a part of a component layout of an organic light emitting diode display device in the prior art
- Figure 2 is a cross-sectional view of Figure 1 taken along line AA';
- FIG. 3 is a flow chart of a method for avoiding short circuit of a metal line in an organic light emitting diode display device according to an embodiment of the invention
- FIG. 4 is a top plan view showing a partial component layout of an organic light emitting diode display device according to an embodiment of the present invention
- Figure 5 is a cross-sectional view of Figure 4 taken along line BB';
- FIG. 6 is a specific step of step S306 in FIG. 5.
- FIG. 3 is a flow chart of a method for avoiding short circuit of a metal line in an organic light emitting diode display device according to an embodiment of the invention.
- 4 is a top view of a partial component layout of an organic light emitting diode display device according to an embodiment of the present invention, and
- FIG. 5 is a cross-sectional view of FIG. 4 along a line segment BB'.
- step S300 a substrate 410 is provided.
- Step S302 forming a gate layer (not shown) and a semiconductor layer (not shown) on the substrate 410.
- Step S304 forming an inorganic layer 400 on the substrate 410. It is to be noted that a region formed on the substrate 410 of the inorganic layer 400 is different from a region where the gate layer (not shown) and the semiconductor layer (not shown) are formed on the substrate 410. .
- Step S306 forming an opening 420 in the inorganic layer 400 to expose a portion of the substrate 410.
- FIG. 6 is a specific step of step S306 in FIG. 5, including:
- step S3060 a negative photoresist layer is coated on the inorganic layer 400.
- Step S3062 exposing the negative photoresist layer with a photomask, so that the negative photoresist layer corresponding to the position of the opening 420 is not irradiated with light.
- Step S3064 developing the negative photoresist layer to remove the negative photoresist layer corresponding to the position of the opening 420.
- Step S3066 etching to remove the inorganic layer 400 corresponding to the position of the opening 420.
- Step S3068 peeling off the negative photoresist layer on the inorganic layer 400.
- the opening 420 will have a shape that is narrower and wider as shown in FIG. 5, that is, a mushroom-like structure.
- the step S308 is performed to form a metal layer on the inorganic layer 400.
- the metal layer includes at least two metal lines 402 and 404 as a source or a drain. They are respectively located on both sides of the opening 420 and are used to transmit independent signals, that is, respectively for transmitting different signals.
- the two metal lines 402, 404 are formed, for example but not limited to, by a wet etching process.
- an organic layer 406 is formed on the metal lines 402, 404 of the metal layer.
- the organic layer 406 covers at least a portion of the metal lines 402, 404.
- the organic layer 406 and the inorganic layer 400 are used as an insulating layer, which has a planarization function to improve the quality when the organic light emitting diode is subsequently manufactured.
- Step S312 forming an indium tin oxide layer on the organic layer 406 (Indium Tin Oxide; ITO) 408, the indium tin oxide layer 408 is used as an anode of an organic light emitting diode.
- ITO Indium Tin Oxide
- the position of the organic light emitting diode is formed in the light emitting region (not shown) of the substrate 410, and the thin film transistor region is shown in FIGS. 4 and 5, so the indium tin oxide layer 408 (as The anode of the organic light emitting diode only needs to be formed in the light emitting region (not shown), and the thin film transistor region shown in FIGS. 4 and 5 does not require the indium tin oxide layer 408, so the photo in the thin film transistor region must be The indium tin oxide layer 408 is removed, and in the prior art, the indium tin oxide layer 408 of the thin film transistor region cannot be completely removed after exposure, development, and etching steps due to the shadow effect of the organic layer 406.
- the indium tin oxide layer 408 is such that the indium tin oxide layer 408 (shown in FIG. 2) remains at the interface between the inorganic layer 400 and the organic layer 406, causing a short circuit between the metal lines 402, 404.
- the present invention forms the opening 420 in the inorganic layer 400 (step S306). Therefore, when the indium tin oxide layer 408 is formed (step S312), the indium tin oxide layer 408 forms a hole at the opening 420. Disconnect the structure, also That is, the indium tin oxide layer 408 of FIG.
- step S314 a light-emitting layer (not shown) and a cathode (not shown) are sequentially formed on the indium tin oxide layer of the light-emitting region (not shown) to complete the manufacture of the organic light-emitting diode.
Abstract
Description
Claims (13)
- 一种避免有机发光二极管显示设备中金属线路短路的方法,包括:在一基板上形成一无机层;在所述无机层形成一开孔,以曝露所述基板的一部分,所述开孔为上窄下宽的形状;在所述无机层上形成一金属层,所述金属层包括两条金属线路分别位于所述开孔的两边;在所述金属层的所述两条金属线路上形成一有机层,所述有机层至少覆盖所述两条金属线路的一部分;以及在所述有机层上形成一氧化铟锡层。
- 根据权利要求1所述的避免有机发光二极管显示设备中金属线路短路的方法,其中在所述无机层形成所述开孔,以曝露所述基板的一部分的步骤中包括:在所述无机层上涂布一负光阻层;以一光罩对所述负光阻层进行曝光,使对应所述开孔位置的所述负光阻层未被光照射;对所述负光阻层进行显影,以去除对应所述开孔位置的所述负光阻层;以及蚀刻以移除对应所述开孔位置的所述无机层。
- 根据权利要求2所述的避免有机发光二极管显示设备中金属线路短路的方法,其中在蚀刻以移除对应所述开孔位置的所述无机层的步骤之后进一步包括:剥离所述无机层上的所述负光阻层。
- 根据权利要求1所述的避免有机发光二极管显示设备中金属线路短路的方法,其中所述两条金属线路作为源极。
- 根据权利要求1所述的避免有机发光二极管显示设备中金属线路短路的方法,其中所述两条金属线路作为汲极。
- 根据权利要求1所述的避免有机发光二极管显示设备中金属线路短路的方法,其中所述两条金属线路以湿蚀刻方法形成。
- 一种避免有机发光二极管显示设备中金属线路短路的方法,包括:在一基板上形成一无机层;在所述无机层形成一开孔,以曝露所述基板的一部分;在所述无机层上形成一金属层,所述金属层包括两条金属线路分别位于所述开孔的两边;在所述金属层的所述两条金属线路上形成一有机层;以及在所述有机层上形成一氧化铟锡层。
- 根据权利要求7所述的避免有机发光二极管显示设备中金属线路短路的方法,其中在所述无机层形成所述开孔,以曝露所述基板的一部分的步骤中包括:在所述无机层上涂布一负光阻层;以一光罩对所述负光阻层进行曝光,使对应所述开孔位置的所述负光阻层未被光照射;对所述负光阻层进行显影,以去除对应所述开孔位置的所述负光阻层;以及蚀刻以移除对应所述开孔位置的所述无机层。
- 根据权利要求8所述的避免有机发光二极管显示设备中金属线路短路的方法,其中在蚀刻以移除对应所述开孔位置的所述无机层的步骤之后进一步包括:剥离所述无机层上的所述负光阻层。
- 根据权利要求7所述的避免有机发光二极管显示设备中金属线路短路的方法,其中所述两条金属线路作为源极。
- 根据权利要求7所述的避免有机发光二极管显示设备中金属线路短路的方法,其中所述两条金属线路作为汲极。
- 根据权利要求7所述的避免有机发光二极管显示设备中金属线路短路的方法,其中所述有机层至少覆盖所述两条金属线路的一部分。
- 根据权利要求7所述的避免有机发光二极管显示设备中金属线路短路的方法,其中所述两条金属线路以湿蚀刻方法形成。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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GB1603605.5A GB2534712B (en) | 2013-08-19 | 2013-11-28 | Method for preventing short circuit between two metal wires in organic light emitting diode display device |
KR1020167004500A KR101824623B1 (ko) | 2013-08-19 | 2013-11-28 | 유기발광 표시장치의 금속 배선들 간 단락 방지 방법 |
US14/235,804 US9012251B2 (en) | 2013-08-19 | 2013-11-28 | Method for preventing short circuit between metal wires in organic light emitting diode display device |
JP2016530309A JP6122553B2 (ja) | 2013-08-19 | 2013-11-28 | 有機発光ダイオードの表示デバイスにおける金属配線の短絡を防止する方法 |
EA201690384A EA031169B9 (ru) | 2013-08-19 | 2013-11-28 | Способ изготовления дисплея на органических светодиодах |
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CN201310361665.0A CN103441099B (zh) | 2013-08-19 | 2013-08-19 | 避免有机发光二极管显示设备中金属线路短路的方法 |
CN201310361665.0 | 2013-08-19 |
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KR (1) | KR101824623B1 (zh) |
CN (1) | CN103441099B (zh) |
EA (1) | EA031169B9 (zh) |
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CN113257662B (zh) * | 2021-07-14 | 2021-09-24 | 苏州汉天下电子有限公司 | 一种半导体器件及其制作方法 |
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CN1993833A (zh) * | 2004-08-03 | 2007-07-04 | E.I.内穆尔杜邦公司 | 用来沉积用于有机电子器件的材料的楔形掩模 |
US20070159080A1 (en) * | 2002-11-22 | 2007-07-12 | Luxell Technologies, Inc. | Transparent-cathode for top-emission organic light-emitting diodes |
CN101320778A (zh) * | 2007-06-06 | 2008-12-10 | 索尼株式会社 | 形成发光元件用的电极结构的方法和形成层压结构的方法 |
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US20040009627A1 (en) * | 2002-07-09 | 2004-01-15 | Hsin-Hung Lee | Method of preventing cathode of active matrix organic light emitting diode from breaking |
JP2005037763A (ja) * | 2003-07-17 | 2005-02-10 | Toshiba Matsushita Display Technology Co Ltd | 液晶表示装置 |
CN1993988A (zh) * | 2004-06-23 | 2007-07-04 | 松下电器产业株式会社 | 档案管理装置、档案管理系统以及档案管理程序 |
KR100709255B1 (ko) | 2005-08-11 | 2007-04-19 | 삼성에스디아이 주식회사 | 평판 표시 장치 및 그 제조 방법 |
CN100470757C (zh) * | 2007-06-15 | 2009-03-18 | 友达光电股份有限公司 | 导线结构、像素结构、显示面板、光电装置及其形成方法 |
KR101233348B1 (ko) * | 2010-06-09 | 2013-02-14 | 삼성디스플레이 주식회사 | 표시 장치 및 그 제조 방법 |
CN103426820B (zh) * | 2013-08-19 | 2015-04-22 | 深圳市华星光电技术有限公司 | 避免有机发光二极管显示设备中金属线路短路的方法 |
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- 2013-08-19 CN CN201310361665.0A patent/CN103441099B/zh active Active
- 2013-11-28 WO PCT/CN2013/088052 patent/WO2015024320A1/zh active Application Filing
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- 2013-11-28 JP JP2016530309A patent/JP6122553B2/ja active Active
- 2013-11-28 KR KR1020167004500A patent/KR101824623B1/ko active IP Right Grant
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US20070159080A1 (en) * | 2002-11-22 | 2007-07-12 | Luxell Technologies, Inc. | Transparent-cathode for top-emission organic light-emitting diodes |
CN1993833A (zh) * | 2004-08-03 | 2007-07-04 | E.I.内穆尔杜邦公司 | 用来沉积用于有机电子器件的材料的楔形掩模 |
CN101320778A (zh) * | 2007-06-06 | 2008-12-10 | 索尼株式会社 | 形成发光元件用的电极结构的方法和形成层压结构的方法 |
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KR20160034382A (ko) | 2016-03-29 |
GB2534712B (en) | 2018-09-26 |
EA201690384A1 (ru) | 2016-07-29 |
KR101824623B1 (ko) | 2018-02-01 |
CN103441099B (zh) | 2015-04-22 |
GB2534712A (en) | 2016-08-03 |
JP6122553B2 (ja) | 2017-04-26 |
JP2016525780A (ja) | 2016-08-25 |
CN103441099A (zh) | 2013-12-11 |
GB201603605D0 (en) | 2016-04-13 |
EA031169B9 (ru) | 2019-03-29 |
EA031169B1 (ru) | 2018-11-30 |
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